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     "0.9.10"
  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                     stack_enabled = 1;
 196 int                     clock_enabled = 1;
 197 int                     title_name_enabled = 0;
 198 int                     title_class_enabled = 0;
 199 pid_t                   bar_pid;
 200 GC                      bar_gc;
 201 XGCValues               bar_gcv;
 202 int                     bar_fidx = 0;
 203 XFontStruct             *bar_fs;
 204 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 205 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 206
 207 #define SWM_MENU_FN     (2)
 208 #define SWM_MENU_NB     (4)
 209 #define SWM_MENU_NF     (6)
 210 #define SWM_MENU_SB     (8)
 211 #define SWM_MENU_SF     (10)
 212
 213 /* layout manager data */
 214 struct swm_geometry {
 215         int                     x;
 216         int                     y;
 217         int                     w;
 218         int                     h;
 219 };
 220
 221 struct swm_screen;
 222 struct workspace;
 223
 224 /* virtual "screens" */
 225 struct swm_region {
 226         TAILQ_ENTRY(swm_region) entry;
 227         struct swm_geometry     g;
 228         struct workspace        *ws;    /* current workspace on this region */
 229         struct swm_screen       *s;     /* screen idx */
 230         Window                  bar_window;
 231 };
 232 TAILQ_HEAD(swm_region_list, swm_region);
 233
 234 struct ws_win {
 235         TAILQ_ENTRY(ws_win)     entry;
 236         Window                  id;
 237         struct swm_geometry     g;
 238         int                     floating;
 239         int                     transient;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         unsigned long           quirks;
 246         struct workspace        *ws;    /* always valid */
 247         struct swm_screen       *s;     /* always valid, never changes */
 248         XWindowAttributes       wa;
 249         XSizeHints              sh;
 250         XClassHint              ch;
 251 };
 252 TAILQ_HEAD(ws_win_list, ws_win);
 253
 254 /* user/key callable function IDs */
 255 enum keyfuncid {
 256         kf_cycle_layout,
 257         kf_stack_reset,
 258         kf_master_shrink,
 259         kf_master_grow,
 260         kf_master_add,
 261         kf_master_del,
 262         kf_stack_inc,
 263         kf_stack_dec,
 264         kf_swap_main,
 265         kf_focus_next,
 266         kf_focus_prev,
 267         kf_swap_next,
 268         kf_swap_prev,
 269         kf_spawn_term,
 270         kf_spawn_menu,
 271         kf_quit,
 272         kf_restart,
 273         kf_focus_main,
 274         kf_ws_1,
 275         kf_ws_2,
 276         kf_ws_3,
 277         kf_ws_4,
 278         kf_ws_5,
 279         kf_ws_6,
 280         kf_ws_7,
 281         kf_ws_8,
 282         kf_ws_9,
 283         kf_ws_10,
 284         kf_ws_next,
 285         kf_ws_prev,
 286         kf_screen_next,
 287         kf_screen_prev,
 288         kf_mvws_1,
 289         kf_mvws_2,
 290         kf_mvws_3,
 291         kf_mvws_4,
 292         kf_mvws_5,
 293         kf_mvws_6,
 294         kf_mvws_7,
 295         kf_mvws_8,
 296         kf_mvws_9,
 297         kf_mvws_10,
 298         kf_bar_toggle,
 299         kf_wind_kill,
 300         kf_wind_del,
 301         kf_screenshot_all,
 302         kf_screenshot_wind,
 303         kf_float_toggle,
 304         kf_version,
 305         kf_spawn_lock,
 306         kf_spawn_initscr,
 307         kf_spawn_custom,
 308         kf_invalid
 309 };
 310
 311 /* layout handlers */
 312 void    stack(void);
 313 void    vertical_config(struct workspace *, int);
 314 void    vertical_stack(struct workspace *, struct swm_geometry *);
 315 void    horizontal_config(struct workspace *, int);
 316 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 317 void    max_stack(struct workspace *, struct swm_geometry *);
 318
 319 void    grabbuttons(struct ws_win *, int);
 320 void    new_region(struct swm_screen *, int, int, int, int);
 321
 322 struct layout {
 323         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 324         void            (*l_config)(struct workspace *, int);
 325         u_int32_t       flags;
 326 #define SWM_L_FOCUSPREV         (1<<0)
 327 #define SWM_L_MAPONFOCUS        (1<<1)
 328         char            *name;
 329 } layouts[] =  {
 330         /* stack,               configure */
 331         { vertical_stack,       vertical_config,        0,      "[|]" },
 332         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 333         { max_stack,            NULL,
 334           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 335         { NULL,                 NULL,                   0},
 336 };
 337
 338 #define SWM_H_SLICE             (32)
 339 #define SWM_V_SLICE             (32)
 340
 341 /* define work spaces */
 342 struct workspace {
 343         int                     idx;            /* workspace index */
 344         int                     restack;        /* restack on switch */
 345         struct layout           *cur_layout;    /* current layout handlers */
 346         struct ws_win           *focus;         /* may be NULL */
 347         struct ws_win           *focus_prev;    /* may be NULL */
 348         struct swm_region       *r;             /* may be NULL */
 349         struct swm_region       *old_r;         /* may be NULL */
 350         struct ws_win_list      winlist;        /* list of windows in ws */
 351
 352         /* stacker state */
 353         struct {
 354                                 int horizontal_msize;
 355                                 int horizontal_mwin;
 356                                 int horizontal_stacks;
 357                                 int vertical_msize;
 358                                 int vertical_mwin;
 359                                 int vertical_stacks;
 360         } l_state;
 361 };
 362
 363 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 364           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 365
 366 /* physical screen mapping */
 367 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 368 struct swm_screen {
 369         int                     idx;            /* screen index */
 370         struct swm_region_list  rl;     /* list of regions on this screen */
 371         struct swm_region_list  orl;    /* list of old regions */
 372         Window                  root;
 373         struct workspace        ws[SWM_WS_MAX];
 374
 375         /* colors */
 376         struct {
 377                 unsigned long   color;
 378                 char            *name;
 379         } c[SWM_S_COLOR_MAX];
 380 };
 381 struct swm_screen       *screens;
 382 int                     num_screens;
 383
 384 /* args to functions */
 385 union arg {
 386         int                     id;
 387 #define SWM_ARG_ID_FOCUSNEXT    (0)
 388 #define SWM_ARG_ID_FOCUSPREV    (1)
 389 #define SWM_ARG_ID_FOCUSMAIN    (2)
 390 #define SWM_ARG_ID_SWAPNEXT     (3)
 391 #define SWM_ARG_ID_SWAPPREV     (4)
 392 #define SWM_ARG_ID_SWAPMAIN     (5)
 393 #define SWM_ARG_ID_MASTERSHRINK (6)
 394 #define SWM_ARG_ID_MASTERGROW   (7)
 395 #define SWM_ARG_ID_MASTERADD    (8)
 396 #define SWM_ARG_ID_MASTERDEL    (9)
 397 #define SWM_ARG_ID_STACKRESET   (10)
 398 #define SWM_ARG_ID_STACKINIT    (11)
 399 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 400 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 401 #define SWM_ARG_ID_CYCLESC_UP   (14)
 402 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 403 #define SWM_ARG_ID_STACKINC     (16)
 404 #define SWM_ARG_ID_STACKDEC     (17)
 405 #define SWM_ARG_ID_SS_ALL       (0)
 406 #define SWM_ARG_ID_SS_WINDOW    (1)
 407 #define SWM_ARG_ID_DONTCENTER   (0)
 408 #define SWM_ARG_ID_CENTER       (1)
 409 #define SWM_ARG_ID_KILLWINDOW   (0)
 410 #define SWM_ARG_ID_DELETEWINDOW (1)
 411         char                    **argv;
 412 };
 413
 414 /* quirks */
 415 struct quirk {
 416         char                    *class;
 417         char                    *name;
 418         unsigned long           quirk;
 419 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 420 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 421 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 422 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 423 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 424 };
 425 int                             quirks_size = 0, quirks_length = 0;
 426 struct quirk                    *quirks = NULL;
 427
 428 /* events */
 429 #ifdef SWM_DEBUG
 430 void
 431 dumpevent(XEvent *e)
 432 {
 433         char                    *name = NULL;
 434
 435         switch (e->type) {
 436         case KeyPress:
 437                 name = "KeyPress";
 438                 break;
 439         case KeyRelease:
 440                 name = "KeyRelease";
 441                 break;
 442         case ButtonPress:
 443                 name = "ButtonPress";
 444                 break;
 445         case ButtonRelease:
 446                 name = "ButtonRelease";
 447                 break;
 448         case MotionNotify:
 449                 name = "MotionNotify";
 450                 break;
 451         case EnterNotify:
 452                 name = "EnterNotify";
 453                 break;
 454         case LeaveNotify:
 455                 name = "LeaveNotify";
 456                 break;
 457         case FocusIn:
 458                 name = "FocusIn";
 459                 break;
 460         case FocusOut:
 461                 name = "FocusOut";
 462                 break;
 463         case KeymapNotify:
 464                 name = "KeymapNotify";
 465                 break;
 466         case Expose:
 467                 name = "Expose";
 468                 break;
 469         case GraphicsExpose:
 470                 name = "GraphicsExpose";
 471                 break;
 472         case NoExpose:
 473                 name = "NoExpose";
 474                 break;
 475         case VisibilityNotify:
 476                 name = "VisibilityNotify";
 477                 break;
 478         case CreateNotify:
 479                 name = "CreateNotify";
 480                 break;
 481         case DestroyNotify:
 482                 name = "DestroyNotify";
 483                 break;
 484         case UnmapNotify:
 485                 name = "UnmapNotify";
 486                 break;
 487         case MapNotify:
 488                 name = "MapNotify";
 489                 break;
 490         case MapRequest:
 491                 name = "MapRequest";
 492                 break;
 493         case ReparentNotify:
 494                 name = "ReparentNotify";
 495                 break;
 496         case ConfigureNotify:
 497                 name = "ConfigureNotify";
 498                 break;
 499         case ConfigureRequest:
 500                 name = "ConfigureRequest";
 501                 break;
 502         case GravityNotify:
 503                 name = "GravityNotify";
 504                 break;
 505         case ResizeRequest:
 506                 name = "ResizeRequest";
 507                 break;
 508         case CirculateNotify:
 509                 name = "CirculateNotify";
 510                 break;
 511         case CirculateRequest:
 512                 name = "CirculateRequest";
 513                 break;
 514         case PropertyNotify:
 515                 name = "PropertyNotify";
 516                 break;
 517         case SelectionClear:
 518                 name = "SelectionClear";
 519                 break;
 520         case SelectionRequest:
 521                 name = "SelectionRequest";
 522                 break;
 523         case SelectionNotify:
 524                 name = "SelectionNotify";
 525                 break;
 526         case ColormapNotify:
 527                 name = "ColormapNotify";
 528                 break;
 529         case ClientMessage:
 530                 name = "ClientMessage";
 531                 break;
 532         case MappingNotify:
 533                 name = "MappingNotify";
 534                 break;
 535         }
 536
 537         if (name)
 538                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 539                     "remaining\n",
 540                     e->xany.window, name, e->type, QLength(display));
 541         else
 542                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 543                     "remaining\n",
 544                     e->xany.window, e->type, QLength(display));
 545 }
 546 #else
 547 #define dumpevent(e)
 548 #endif /* SWM_DEBUG */
 549
 550 void                    expose(XEvent *);
 551 void                    keypress(XEvent *);
 552 void                    buttonpress(XEvent *);
 553 void                    configurerequest(XEvent *);
 554 void                    configurenotify(XEvent *);
 555 void                    destroynotify(XEvent *);
 556 void                    enternotify(XEvent *);
 557 void                    focusin(XEvent *);
 558 void                    focusout(XEvent *);
 559 void                    mapnotify(XEvent *);
 560 void                    mappingnotify(XEvent *);
 561 void                    maprequest(XEvent *);
 562 void                    propertynotify(XEvent *);
 563 void                    unmapnotify(XEvent *);
 564 void                    visibilitynotify(XEvent *);
 565
 566 void                    (*handler[LASTEvent])(XEvent *) = {
 567                                 [Expose] = expose,
 568                                 [KeyPress] = keypress,
 569                                 [ButtonPress] = buttonpress,
 570                                 [ConfigureRequest] = configurerequest,
 571                                 [ConfigureNotify] = configurenotify,
 572                                 [DestroyNotify] = destroynotify,
 573                                 [EnterNotify] = enternotify,
 574                                 [FocusIn] = focusin,
 575                                 [FocusOut] = focusout,
 576                                 [MapNotify] = mapnotify,
 577                                 [MappingNotify] = mappingnotify,
 578                                 [MapRequest] = maprequest,
 579                                 [PropertyNotify] = propertynotify,
 580                                 [UnmapNotify] = unmapnotify,
 581                                 [VisibilityNotify] = visibilitynotify,
 582 };
 583
 584 void
 585 sighdlr(int sig)
 586 {
 587         pid_t                   pid;
 588
 589         switch (sig) {
 590         case SIGCHLD:
 591                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 592                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 593                         if (pid <= 0)
 594                                 break;
 595                 }
 596                 break;
 597         case SIGINT:
 598         case SIGTERM:
 599         case SIGHUP:
 600         case SIGQUIT:
 601                 running = 0;
 602                 break;
 603         }
 604 }
 605
 606 void
 607 installsignal(int sig, char *name)
 608 {
 609         struct sigaction        sa;
 610
 611         sa.sa_handler = sighdlr;
 612         sigemptyset(&sa.sa_mask);
 613         sa.sa_flags = 0;
 614         if (sigaction(sig, &sa, NULL) == -1)
 615                 err(1, "could not install %s handler", name);
 616 }
 617
 618 unsigned long
 619 name_to_color(char *colorname)
 620 {
 621         Colormap                cmap;
 622         Status                  status;
 623         XColor                  screen_def, exact_def;
 624         unsigned long           result = 0;
 625         char                    cname[32] = "#";
 626
 627         cmap = DefaultColormap(display, screens[0].idx);
 628         status = XAllocNamedColor(display, cmap, colorname,
 629             &screen_def, &exact_def);
 630         if (!status) {
 631                 strlcat(cname, colorname + 2, sizeof cname - 1);
 632                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 633                     &exact_def);
 634         }
 635         if (status)
 636                 result = screen_def.pixel;
 637         else
 638                 fprintf(stderr, "color '%s' not found.\n", colorname);
 639
 640         return (result);
 641 }
 642
 643 void
 644 setscreencolor(char *val, int i, int c)
 645 {
 646         if (i > 0 && i <= ScreenCount(display)) {
 647                 screens[i - 1].c[c].color = name_to_color(val);
 648                 free(screens[i - 1].c[c].name);
 649                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 650                         errx(1, "strdup");
 651         } else if (i == -1) {
 652                 for (i = 0; i < ScreenCount(display); i++) {
 653                         screens[i].c[c].color = name_to_color(val);
 654                         free(screens[i].c[c].name);
 655                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 656                                 errx(1, "strdup");
 657                 }
 658         } else
 659                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 660                     i, ScreenCount(display));
 661 }
 662
 663 void
 664 custom_region(char *val)
 665 {
 666         unsigned int                    sidx, x, y, w, h;
 667
 668         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 669                 errx(1, "invalid custom region, "
 670                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 671         if (sidx < 1 || sidx > ScreenCount(display))
 672                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 673                     sidx, ScreenCount(display));
 674         sidx--;
 675
 676         if (w < 1 || h < 1)
 677                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 678
 679         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 680             y < 0 || y > DisplayHeight(display, sidx) ||
 681             w + x > DisplayWidth(display, sidx) ||
 682             h + y > DisplayHeight(display, sidx))
 683                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 684                     "(%ux%u)\n", w, h, x, y,
 685                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 686
 687         new_region(&screens[sidx], x, y, w, h);
 688 }
 689
 690 void
 691 socket_setnonblock(int fd)
 692 {
 693         int                     flags;
 694
 695         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 696                 err(1, "fcntl F_GETFL");
 697         flags |= O_NONBLOCK;
 698         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 699                 err(1, "fcntl F_SETFL");
 700 }
 701
 702 void
 703 bar_print(struct swm_region *r, char *s)
 704 {
 705         XClearWindow(display, r->bar_window);
 706         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 707         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 708             strlen(s));
 709 }
 710
 711 void
 712 bar_extra_stop(void)
 713 {
 714         if (bar_pipe[0]) {
 715                 close(bar_pipe[0]);
 716                 bzero(bar_pipe, sizeof bar_pipe);
 717         }
 718         if (bar_pid) {
 719                 kill(bar_pid, SIGTERM);
 720                 bar_pid = 0;
 721         }
 722         strlcpy(bar_ext, "", sizeof bar_ext);
 723         bar_extra = 0;
 724 }
 725
 726 void
 727 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 728 {
 729         int                     do_class, do_name;
 730         Status                  status;
 731         XClassHint              *xch = NULL;
 732
 733         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 734             cur_focus != NULL) {
 735                 if ((xch = XAllocClassHint()) == NULL)
 736                         goto out;
 737                 status = XGetClassHint(display, cur_focus->id, xch);
 738                 if (status == BadWindow || status == BadAlloc)
 739                         goto out;
 740                 do_class = (title_class_enabled && xch->res_class != NULL);
 741                 do_name = (title_name_enabled && xch->res_name != NULL);
 742                 if (do_class)
 743                         strlcat(s, xch->res_class, sz);
 744                 if (do_class && do_name)
 745                         strlcat(s, ":", sz);
 746                 if (do_name)
 747                         strlcat(s, xch->res_name, sz);
 748                 strlcat(s, "    ", sz);
 749         }
 750 out:
 751         if (xch)
 752                 XFree(xch);
 753 }
 754
 755 void
 756 bar_update(void)
 757 {
 758         time_t                  tmt;
 759         struct tm               tm;
 760         struct swm_region       *r;
 761         int                     i, x;
 762         size_t                  len;
 763         char                    s[SWM_BAR_MAX];
 764         char                    loc[SWM_BAR_MAX];
 765         char                    *b;
 766         char                    *stack = "";
 767
 768         if (bar_enabled == 0)
 769                 return;
 770         if (bar_extra && bar_extra_running) {
 771                 /* ignore short reads; it'll correct itself */
 772                 while ((b = fgetln(stdin, &len)) != NULL)
 773                         if (b && b[len - 1] == '\n') {
 774                                 b[len - 1] = '\0';
 775                                 strlcpy(bar_ext, b, sizeof bar_ext);
 776                         }
 777                 if (b == NULL && errno != EAGAIN) {
 778                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 779                             errno, strerror(errno));
 780                         bar_extra_stop();
 781                 }
 782         } else
 783                 strlcpy(bar_ext, "", sizeof bar_ext);
 784
 785         if (clock_enabled == 0)
 786                 strlcpy(s, "", sizeof s);
 787         else {
 788                 time(&tmt);
 789                 localtime_r(&tmt, &tm);
 790                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 791         }
 792
 793         for (i = 0; i < ScreenCount(display); i++) {
 794                 x = 1;
 795                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 796                         if (r && r->ws)
 797                                 bar_class_name(s, sizeof s, r->ws->focus);
 798
 799                         if (stack_enabled)
 800                                 stack = r->ws->cur_layout->name;
 801
 802                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 803                             x++, r->ws->idx + 1, stack, s, bar_ext,
 804                             bar_vertext);
 805                         bar_print(r, loc);
 806                 }
 807         }
 808         alarm(bar_delay);
 809 }
 810
 811 void
 812 bar_signal(int sig)
 813 {
 814         bar_alarm = 1;
 815 }
 816
 817 void
 818 bar_toggle(struct swm_region *r, union arg *args)
 819 {
 820         struct swm_region       *tmpr;
 821         int                     i, j, sc = ScreenCount(display);
 822
 823         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 824
 825         if (bar_enabled)
 826                 for (i = 0; i < sc; i++)
 827                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 828                                 XUnmapWindow(display, tmpr->bar_window);
 829         else
 830                 for (i = 0; i < sc; i++)
 831                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 832                                 XMapRaised(display, tmpr->bar_window);
 833
 834         bar_enabled = !bar_enabled;
 835         for (i = 0; i < sc; i++)
 836                 for (j = 0; j < SWM_WS_MAX; j++)
 837                         screens[i].ws[j].restack = 1;
 838
 839         stack();
 840         /* must be after stack */
 841         bar_update();
 842 }
 843
 844 void
 845 bar_refresh(void)
 846 {
 847         XSetWindowAttributes    wa;
 848         struct swm_region       *r;
 849         int                     i;
 850
 851         /* do this here because the conf file is in memory */
 852         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 853                 /* launch external status app */
 854                 bar_extra_running = 1;
 855                 if (pipe(bar_pipe) == -1)
 856                         err(1, "pipe error");
 857                 socket_setnonblock(bar_pipe[0]);
 858                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 859                 if (dup2(bar_pipe[0], 0) == -1)
 860                         errx(1, "dup2");
 861                 if (dup2(bar_pipe[1], 1) == -1)
 862                         errx(1, "dup2");
 863                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 864                         err(1, "could not disable SIGPIPE");
 865                 switch (bar_pid = fork()) {
 866                 case -1:
 867                         err(1, "cannot fork");
 868                         break;
 869                 case 0: /* child */
 870                         close(bar_pipe[0]);
 871                         execvp(bar_argv[0], bar_argv);
 872                         err(1, "%s external app failed", bar_argv[0]);
 873                         break;
 874                 default: /* parent */
 875                         close(bar_pipe[1]);
 876                         break;
 877                 }
 878         }
 879
 880         bzero(&wa, sizeof wa);
 881         for (i = 0; i < ScreenCount(display); i++)
 882                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 883                         wa.border_pixel =
 884                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 885                         wa.background_pixel =
 886                             screens[i].c[SWM_S_COLOR_BAR].color;
 887                         XChangeWindowAttributes(display, r->bar_window,
 888                             CWBackPixel | CWBorderPixel, &wa);
 889                 }
 890         bar_update();
 891 }
 892
 893 void
 894 bar_setup(struct swm_region *r)
 895 {
 896         int                     i;
 897
 898         for (i = 0; bar_fonts[i] != NULL; i++) {
 899                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 900                 if (bar_fs) {
 901                         bar_fidx = i;
 902                         break;
 903                 }
 904         }
 905         if (bar_fonts[i] == NULL)
 906                         errx(1, "couldn't load font");
 907         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 908
 909         r->bar_window = XCreateSimpleWindow(display,
 910             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 911             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 912             r->s->c[SWM_S_COLOR_BAR].color);
 913         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 914         XSetFont(display, bar_gc, bar_fs->fid);
 915         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 916         if (bar_enabled)
 917                 XMapRaised(display, r->bar_window);
 918         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 919
 920         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 921                 err(1, "could not install bar_signal");
 922         bar_refresh();
 923 }
 924
 925 Bool
 926 set_win_notify_cb(Display *d, XEvent *e, char *arg)
 927 {
 928         struct ws_win           *win = (struct ws_win *)arg;
 929
 930         if (win && win->id == e->xany.window && e->xany.type == PropertyNotify)
 931                         return (True);
 932         return (False);
 933 }
 934
 935 void
 936 set_win_state(struct ws_win *win, long state)
 937 {
 938         long                    data[] = {state, None};
 939         XEvent                  ev;
 940         XWindowAttributes       wa;
 941
 942         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 943
 944         /* make sure we drain everything */
 945         XSync(display, True);
 946
 947         /* make sure we still exist too */
 948         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
 949                 return;
 950
 951         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 952             (unsigned char *)data, 2);
 953
 954         /* wait for completion of XChangeProperty */
 955         while (XCheckIfEvent(display, &ev, set_win_notify_cb, (char *)win))
 956                 ;
 957 }
 958
 959 long
 960 getstate(Window w)
 961 {
 962         int                     format, status;
 963         long                    result = -1;
 964         unsigned char           *p = NULL;
 965         unsigned long           n, extra;
 966         Atom                    real;
 967
 968         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 969             &real, &format, &n, &extra, (unsigned char **)&p);
 970         if (status != Success)
 971                 return (-1);
 972         if (n != 0)
 973                 result = *((long *)p);
 974         XFree(p);
 975         return (result);
 976 }
 977
 978 void
 979 version(struct swm_region *r, union arg *args)
 980 {
 981         bar_version = !bar_version;
 982         if (bar_version)
 983                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 984                     SWM_VERSION, cvstag);
 985         else
 986                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 987         bar_update();
 988 }
 989
 990 void
 991 client_msg(struct ws_win *win, Atom a)
 992 {
 993         XClientMessageEvent     cm;
 994
 995         bzero(&cm, sizeof cm);
 996         cm.type = ClientMessage;
 997         cm.window = win->id;
 998         cm.message_type = aprot;
 999         cm.format = 32;
1000         cm.data.l[0] = a;
1001         cm.data.l[1] = CurrentTime;
1002         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
1003 }
1004
1005 void
1006 config_win(struct ws_win *win)
1007 {
1008         XConfigureEvent         ce;
1009
1010         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1011             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1012         ce.type = ConfigureNotify;
1013         ce.display = display;
1014         ce.event = win->id;
1015         ce.window = win->id;
1016         ce.x = win->g.x;
1017         ce.y = win->g.y;
1018         ce.width = win->g.w;
1019         ce.height = win->g.h;
1020         ce.border_width = 1; /* XXX store this! */
1021         ce.above = None;
1022         ce.override_redirect = False;
1023         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1024 }
1025
1026 int
1027 count_win(struct workspace *ws, int count_transient)
1028 {
1029         struct ws_win           *win;
1030         int                     count = 0;
1031
1032         TAILQ_FOREACH(win, &ws->winlist, entry) {
1033                 if (count_transient == 0 && win->floating)
1034                         continue;
1035                 if (count_transient == 0 && win->transient)
1036                         continue;
1037                 count++;
1038         }
1039         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1040
1041         return (count);
1042 }
1043
1044 void
1045 quit(struct swm_region *r, union arg *args)
1046 {
1047         DNPRINTF(SWM_D_MISC, "quit\n");
1048         running = 0;
1049 }
1050
1051 Bool
1052 unmap_window_cb(Display *d, XEvent *e, char *arg)
1053 {
1054         struct ws_win           *win = (struct ws_win *)arg;
1055
1056         if (win && win->id == e->xany.window && e->xany.type == UnmapNotify)
1057                         return (True);
1058         return (False);
1059 }
1060
1061 void
1062 unmap_window(struct ws_win *win)
1063 {
1064         XEvent                  ev;
1065         XWindowAttributes       wa;
1066
1067         if (win == NULL)
1068                 return;
1069
1070         /* make sure we still exist too */
1071         if (XGetWindowAttributes(display, win->id, &wa) == BadWindow)
1072                 return;
1073
1074         /* don't unmap again */
1075         if (wa.map_state == IsUnmapped && getstate(win->id) == IconicState)
1076                 return;
1077
1078         set_win_state(win, IconicState);
1079         XUnmapWindow(display, win->id);
1080
1081         /* make sure we wait for XUnmapWindow completion */
1082         while (XCheckIfEvent(display, &ev, unmap_window_cb, (char *)win))
1083                 ;
1084 }
1085
1086 void
1087 unmap_all(void)
1088 {
1089         struct ws_win           *win;
1090         int                     i, j;
1091
1092         for (i = 0; i < ScreenCount(display); i++)
1093                 for (j = 0; j < SWM_WS_MAX; j++)
1094                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1095                                 unmap_window(win);
1096 }
1097
1098 void
1099 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1100 {
1101         XKeyEvent event;
1102
1103         event.display = display;        /* Ignored, but what the hell */
1104         event.window = win->id;
1105         event.root = win->s->root;
1106         event.subwindow = None;
1107         event.time = CurrentTime;
1108         event.x = win->g.x;
1109         event.y = win->g.y;
1110         event.x_root = 1;
1111         event.y_root = 1;
1112         event.same_screen = True;
1113         event.keycode = XKeysymToKeycode(display, keysym);
1114         event.state = modifiers;
1115
1116         event.type = KeyPress;
1117         XSendEvent(event.display, event.window, True,
1118             KeyPressMask, (XEvent *)&event);
1119
1120         event.type = KeyRelease;
1121         XSendEvent(event.display, event.window, True,
1122             KeyPressMask, (XEvent *)&event);
1123
1124 }
1125
1126 void
1127 restart(struct swm_region *r, union arg *args)
1128 {
1129         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1130
1131         /* disable alarm because the following code may not be interrupted */
1132         alarm(0);
1133         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1134                 errx(1, "can't disable alarm");
1135
1136         bar_extra_stop();
1137         bar_extra = 1;
1138         unmap_all();
1139         XCloseDisplay(display);
1140         execvp(start_argv[0], start_argv);
1141         fprintf(stderr, "execvp failed\n");
1142         perror(" failed");
1143         quit(NULL, NULL);
1144 }
1145
1146 struct swm_region *
1147 root_to_region(Window root)
1148 {
1149         struct swm_region       *r = NULL;
1150         Window                  rr, cr;
1151         int                     i, x, y, wx, wy;
1152         unsigned int            mask;
1153
1154         for (i = 0; i < ScreenCount(display); i++)
1155                 if (screens[i].root == root)
1156                         break;
1157
1158         if (XQueryPointer(display, screens[i].root,
1159             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1160                 /* choose a region based on pointer location */
1161                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1162                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1163                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1164                                 break;
1165         }
1166
1167         if (r == NULL)
1168                 r = TAILQ_FIRST(&screens[i].rl);
1169
1170         return (r);
1171 }
1172
1173 struct ws_win *
1174 find_window(Window id)
1175 {
1176         struct ws_win           *win;
1177         int                     i, j;
1178
1179         for (i = 0; i < ScreenCount(display); i++)
1180                 for (j = 0; j < SWM_WS_MAX; j++)
1181                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1182                                 if (id == win->id)
1183                                         return (win);
1184         return (NULL);
1185 }
1186
1187 void
1188 spawn(struct swm_region *r, union arg *args)
1189 {
1190         char                    *ret;
1191         int                     si;
1192
1193         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1194         /*
1195          * The double-fork construct avoids zombie processes and keeps the code
1196          * clean from stupid signal handlers.
1197          */
1198         if (fork() == 0) {
1199                 if (fork() == 0) {
1200                         if (display)
1201                                 close(ConnectionNumber(display));
1202                         setenv("LD_PRELOAD", SWM_LIB, 1);
1203                         if (asprintf(&ret, "%d", r->ws->idx)) {
1204                                 setenv("_SWM_WS", ret, 1);
1205                                 free(ret);
1206                         }
1207                         if (asprintf(&ret, "%d", getpid())) {
1208                                 setenv("_SWM_PID", ret, 1);
1209                                 free(ret);
1210                         }
1211                         setsid();
1212                         /* kill stdin, mplayer, ssh-add etc. need that */
1213                         si = open("/dev/null", O_RDONLY, 0);
1214                         if (si == -1)
1215                                 err(1, "open /dev/null");
1216                         if (dup2(si, 0) == -1)
1217                                 err(1, "dup2 /dev/null");
1218                         execvp(args->argv[0], args->argv);
1219                         fprintf(stderr, "execvp failed\n");
1220                         perror(" failed");
1221                 }
1222                 exit(0);
1223         }
1224 }
1225
1226 void
1227 spawnterm(struct swm_region *r, union arg *args)
1228 {
1229         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1230
1231         if (term_width)
1232                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1233         spawn(r, args);
1234 }
1235
1236 void
1237 unfocus_win(struct ws_win *win)
1238 {
1239         if (win == NULL)
1240                 return;
1241
1242         if (win->ws->r == NULL)
1243                 return;
1244
1245         if (win->ws->focus == win) {
1246                 win->ws->focus = NULL;
1247                 win->ws->focus_prev = win;
1248         }
1249
1250         grabbuttons(win, 0);
1251         XSetWindowBorder(display, win->id,
1252             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1253 }
1254
1255 void
1256 unfocus_all(void)
1257 {
1258         struct ws_win           *win;
1259         int                     i, j;
1260
1261         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1262
1263         for (i = 0; i < ScreenCount(display); i++)
1264                 for (j = 0; j < SWM_WS_MAX; j++)
1265                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1266                                 unfocus_win(win);
1267 }
1268
1269 void
1270 focus_win(struct ws_win *win)
1271 {
1272         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1273
1274         if (win == NULL)
1275                 return;
1276
1277         /* use big hammer to make sure it works under all use cases */
1278         unfocus_all();
1279         win->ws->focus = win;
1280
1281         if (win->ws->r != NULL) {
1282                 XSetWindowBorder(display, win->id,
1283                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1284                 grabbuttons(win, 1);
1285                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1286                         XMapRaised(display, win->id);
1287                 XSetInputFocus(display, win->id,
1288                     RevertToPointerRoot, CurrentTime);
1289         }
1290 }
1291
1292 void
1293 switchws(struct swm_region *r, union arg *args)
1294 {
1295         int                     wsid = args->id;
1296         struct swm_region       *this_r, *other_r;
1297         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1298         struct workspace        *new_ws, *old_ws;
1299
1300         this_r = r;
1301         old_ws = this_r->ws;
1302         new_ws = &this_r->s->ws[wsid];
1303
1304         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1305             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1306             old_ws->idx, wsid);
1307
1308         if (new_ws == old_ws)
1309                 return;
1310
1311         /* get focus window */
1312         if (new_ws->focus)
1313                 winfocus = new_ws->focus;
1314         else if (new_ws->focus_prev)
1315                 winfocus = new_ws->focus_prev;
1316         else
1317                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1318
1319         other_r = new_ws->r;
1320         if (other_r == NULL) {
1321                 /* if the other workspace is hidden, switch windows */
1322                 if (old_ws->r != NULL)
1323                         old_ws->old_r = old_ws->r;
1324                 old_ws->r = NULL;
1325                 old_ws->restack = 1;
1326
1327                 /*
1328                  * Map new windows first if they were here before
1329                  * to minimize ugly blinking.
1330                  */
1331                 if (new_ws->old_r == this_r)
1332                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1333                                 if (!(win->ws->cur_layout->flags &
1334                                     SWM_L_MAPONFOCUS))
1335                                         XMapRaised(display, win->id);
1336
1337                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1338                         unmap_window(win);
1339         } else {
1340                 other_r->ws = old_ws;
1341                 old_ws->r = other_r;
1342         }
1343         this_r->ws = new_ws;
1344         new_ws->r = this_r;
1345
1346         ignore_enter = 1;
1347         stack();
1348         if (winfocus) {
1349                 /* make sure we see the parent window */
1350                 if (winfocus->transient) {
1351                         parent = find_window(winfocus->transient);
1352                         if (parent)
1353                                 focus_win(parent);
1354                 }
1355
1356                 focus_win(winfocus);
1357         }
1358         ignore_enter = 0;
1359         bar_update();
1360 }
1361
1362 void
1363 cyclews(struct swm_region *r, union arg *args)
1364 {
1365         union                   arg a;
1366         struct swm_screen       *s = r->s;
1367
1368         DNPRINTF(SWM_D_WS, "cyclews id %d "
1369             "in screen[%d]:%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         a.id = r->ws->idx;
1373         do {
1374                 switch (args->id) {
1375                 case SWM_ARG_ID_CYCLEWS_UP:
1376                         if (a.id < SWM_WS_MAX - 1)
1377                                 a.id++;
1378                         else
1379                                 a.id = 0;
1380                         break;
1381                 case SWM_ARG_ID_CYCLEWS_DOWN:
1382                         if (a.id > 0)
1383                                 a.id--;
1384                         else
1385                                 a.id = SWM_WS_MAX - 1;
1386                         break;
1387                 default:
1388                         return;
1389                 };
1390
1391                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1392                         continue;
1393                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1394                         continue;
1395
1396                 switchws(r, &a);
1397         } while (a.id != r->ws->idx);
1398 }
1399
1400 void
1401 cyclescr(struct swm_region *r, union arg *args)
1402 {
1403         struct swm_region       *rr = NULL;
1404         struct workspace        *ws = NULL;
1405         struct ws_win           *winfocus = NULL;
1406         int                     i, x, y;
1407
1408         /* do nothing if we don't have more than one screen */
1409         if (!(ScreenCount(display) > 1 || outputs > 1))
1410                 return;
1411
1412         i = r->s->idx;
1413         switch (args->id) {
1414         case SWM_ARG_ID_CYCLESC_UP:
1415                 rr = TAILQ_NEXT(r, entry);
1416                 if (rr == NULL)
1417                         rr = TAILQ_FIRST(&screens[i].rl);
1418                 break;
1419         case SWM_ARG_ID_CYCLESC_DOWN:
1420                 rr = TAILQ_PREV(r, swm_region_list, entry);
1421                 if (rr == NULL)
1422                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1423                 break;
1424         default:
1425                 return;
1426         };
1427         if (rr == NULL)
1428                 return;
1429
1430         ws = rr->ws;
1431         winfocus = ws->focus;
1432         if (winfocus == NULL)
1433                 winfocus = ws->focus_prev;
1434         if (winfocus) {
1435                 /* use window coordinates */
1436                 x = winfocus->g.x + 1;
1437                 y = winfocus->g.y + 1;
1438         } else {
1439                 /* use region coordinates */
1440                 x = rr->g.x + 1;
1441                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1442         }
1443
1444         unfocus_all();
1445         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1446         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1447
1448         focus_win(winfocus);
1449 }
1450
1451 void
1452 swapwin(struct swm_region *r, union arg *args)
1453 {
1454         struct ws_win           *target, *source;
1455         struct ws_win           *cur_focus;
1456         struct ws_win_list      *wl;
1457
1458
1459         DNPRINTF(SWM_D_WS, "swapwin id %d "
1460             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1461             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1462
1463         cur_focus = r->ws->focus;
1464         if (cur_focus == NULL)
1465                 return;
1466
1467         source = cur_focus;
1468         wl = &source->ws->winlist;
1469
1470         switch (args->id) {
1471         case SWM_ARG_ID_SWAPPREV:
1472                 target = TAILQ_PREV(source, ws_win_list, entry);
1473                 TAILQ_REMOVE(wl, cur_focus, entry);
1474                 if (target == NULL)
1475                         TAILQ_INSERT_TAIL(wl, source, entry);
1476                 else
1477                         TAILQ_INSERT_BEFORE(target, source, entry);
1478                 break;
1479         case SWM_ARG_ID_SWAPNEXT:
1480                 target = TAILQ_NEXT(source, entry);
1481                 TAILQ_REMOVE(wl, source, entry);
1482                 if (target == NULL)
1483                         TAILQ_INSERT_HEAD(wl, source, entry);
1484                 else
1485                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1486                 break;
1487         case SWM_ARG_ID_SWAPMAIN:
1488                 target = TAILQ_FIRST(wl);
1489                 if (target == source) {
1490                         if (source->ws->focus_prev != NULL &&
1491                             source->ws->focus_prev != target)
1492
1493                                 source = source->ws->focus_prev;
1494                         else
1495                                 return;
1496                 }
1497                 source->ws->focus_prev = target;
1498                 TAILQ_REMOVE(wl, target, entry);
1499                 TAILQ_INSERT_BEFORE(source, target, entry);
1500                 TAILQ_REMOVE(wl, source, entry);
1501                 TAILQ_INSERT_HEAD(wl, source, entry);
1502                 break;
1503         default:
1504                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1505                 return;
1506         }
1507
1508         ignore_enter = 1;
1509         stack();
1510 }
1511
1512 void
1513 focus(struct swm_region *r, union arg *args)
1514 {
1515         struct ws_win           *winfocus, *winlostfocus;
1516         struct ws_win_list      *wl;
1517         struct ws_win           *cur_focus;
1518
1519         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1520
1521         cur_focus = r->ws->focus;
1522         if (cur_focus == NULL)
1523                 return;
1524
1525         wl = &cur_focus->ws->winlist;
1526
1527         winlostfocus = cur_focus;
1528
1529         switch (args->id) {
1530         case SWM_ARG_ID_FOCUSPREV:
1531                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1532                 if (winfocus == NULL)
1533                         winfocus = TAILQ_LAST(wl, ws_win_list);
1534                 break;
1535
1536         case SWM_ARG_ID_FOCUSNEXT:
1537                 winfocus = TAILQ_NEXT(cur_focus, entry);
1538                 if (winfocus == NULL)
1539                         winfocus = TAILQ_FIRST(wl);
1540                 break;
1541
1542         case SWM_ARG_ID_FOCUSMAIN:
1543                 winfocus = TAILQ_FIRST(wl);
1544                 if (winfocus == cur_focus)
1545                         winfocus = cur_focus->ws->focus_prev;
1546                 if (winfocus == NULL)
1547                         return;
1548                 break;
1549
1550         default:
1551                 return;
1552         }
1553
1554         if (winfocus == winlostfocus || winfocus == NULL)
1555                 return;
1556
1557         focus_win(winfocus);
1558 }
1559
1560 void
1561 cycle_layout(struct swm_region *r, union arg *args)
1562 {
1563         struct workspace        *ws = r->ws;
1564         struct ws_win           *winfocus, *parent = NULL;
1565
1566         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1567
1568         winfocus = ws->focus;
1569
1570         ws->cur_layout++;
1571         if (ws->cur_layout->l_stack == NULL)
1572                 ws->cur_layout = &layouts[0];
1573
1574         ignore_enter = 1;
1575         stack();
1576         /* make sure we see the parent window */
1577         if (winfocus) {
1578                 if (winfocus->transient)
1579                         parent = find_window(winfocus->transient);
1580                 if (parent)
1581                         focus_win(parent);
1582                 focus_win(winfocus);
1583         }
1584         ignore_enter = 0;
1585 }
1586
1587 void
1588 stack_config(struct swm_region *r, union arg *args)
1589 {
1590         struct workspace        *ws = r->ws;
1591
1592         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1593             args->id, ws->idx);
1594
1595         if (ws->cur_layout->l_config != NULL)
1596                 ws->cur_layout->l_config(ws, args->id);
1597
1598         if (args->id != SWM_ARG_ID_STACKINIT);
1599                 stack();
1600 }
1601
1602 void
1603 stack(void) {
1604         struct swm_geometry     g;
1605         struct swm_region       *r;
1606         int                     i, j;
1607
1608         DNPRINTF(SWM_D_STACK, "stack\n");
1609
1610         for (i = 0; i < ScreenCount(display); i++) {
1611                 j = 0;
1612                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1613                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1614                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1615
1616                         /* start with screen geometry, adjust for bar */
1617                         g = r->g;
1618                         g.w -= 2;
1619                         g.h -= 2;
1620                         if (bar_enabled) {
1621                                 g.y += bar_height;
1622                                 g.h -= bar_height;
1623                         }
1624
1625                         r->ws->restack = 0;
1626                         r->ws->cur_layout->l_stack(r->ws, &g);
1627                 }
1628         }
1629         if (font_adjusted)
1630                 font_adjusted--;
1631 }
1632
1633 void
1634 stack_floater(struct ws_win *win, struct swm_region *r)
1635 {
1636         unsigned int            mask;
1637         XWindowChanges          wc;
1638
1639         if (win == NULL)
1640                 return;
1641
1642         bzero(&wc, sizeof wc);
1643         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1644         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1645             (win->g.h == HEIGHT(r)))
1646                 wc.border_width = 0;
1647         else
1648                 wc.border_width = 1;
1649         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1650                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1651                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1652         }
1653         wc.width = win->g.w;
1654         wc.height = win->g.h;
1655         if (win->manual) {
1656                 wc.x = win->g.x;
1657                 wc.y = win->g.y;
1658         } else {
1659                 wc.x = (WIDTH(r) - win->g.w) / 2;
1660                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1661         }
1662
1663         /* adjust for region */
1664         wc.x += r->g.x;
1665         wc.y += r->g.y;
1666
1667         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1668             win->id, wc.x, wc.y, wc.width, wc.height);
1669
1670         XConfigureWindow(display, win->id, mask, &wc);
1671 }
1672
1673 /*
1674  * Send keystrokes to terminal to decrease/increase the font size as the
1675  * window size changes.
1676  */
1677 void
1678 adjust_font(struct ws_win *win)
1679 {
1680         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1681             win->floating || win->transient)
1682                 return;
1683
1684         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1685             win->g.w / win->sh.width_inc < term_width &&
1686             win->font_steps < SWM_MAX_FONT_STEPS) {
1687                 win->font_size_boundary[win->font_steps] =
1688                     (win->sh.width_inc * term_width) + win->sh.base_width;
1689                 win->font_steps++;
1690                 font_adjusted++;
1691                 win->last_inc = win->sh.width_inc;
1692                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1693         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1694             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1695                 win->font_steps--;
1696                 font_adjusted++;
1697                 win->last_inc = win->sh.width_inc;
1698                 fake_keypress(win, XK_KP_Add, ShiftMask);
1699         }
1700 }
1701
1702 #define SWAPXY(g)       do {                            \
1703         int tmp;                                        \
1704         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1705         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1706 } while (0)
1707 void
1708 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1709 {
1710         XWindowChanges          wc;
1711         struct swm_geometry     win_g, r_g = *g;
1712         struct ws_win           *win;
1713         int                     i, j, s, stacks;
1714         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1715         int                     hrh, extra = 0, h_slice, last_h = 0;
1716         int                     split, colno, winno, mwin, msize, mscale;
1717         int                     remain, missing, v_slice;
1718         unsigned int            mask;
1719
1720         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1721             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1722
1723         winno = count_win(ws, 0);
1724         if (winno == 0 && count_win(ws, 1) == 0)
1725                 return;
1726
1727         TAILQ_FOREACH(win, &ws->winlist, entry)
1728                 if (win->transient == 0 && win->floating == 0)
1729                         break;
1730
1731         if (win == NULL)
1732                 goto notiles;
1733
1734         if (rot) {
1735                 w_inc = win->sh.width_inc;
1736                 w_base = win->sh.base_width;
1737                 mwin = ws->l_state.horizontal_mwin;
1738                 mscale = ws->l_state.horizontal_msize;
1739                 stacks = ws->l_state.horizontal_stacks;
1740                 SWAPXY(&r_g);
1741         } else {
1742                 w_inc = win->sh.height_inc;
1743                 w_base = win->sh.base_height;
1744                 mwin = ws->l_state.vertical_mwin;
1745                 mscale = ws->l_state.vertical_msize;
1746                 stacks = ws->l_state.vertical_stacks;
1747         }
1748         win_g = r_g;
1749
1750         if (stacks > winno - mwin)
1751                 stacks = winno - mwin;
1752         if (stacks < 1)
1753                 stacks = 1;
1754
1755         h_slice = r_g.h / SWM_H_SLICE;
1756         if (mwin && winno > mwin) {
1757                 v_slice = r_g.w / SWM_V_SLICE;
1758
1759                 split = mwin;
1760                 colno = split;
1761                 win_g.w = v_slice * mscale;
1762
1763                 if (w_inc > 1 && w_inc < v_slice) {
1764                         /* adjust for window's requested size increment */
1765                         remain = (win_g.w - w_base) % w_inc;
1766                         missing = w_inc - remain;
1767                         win_g.w -= remain;
1768                         extra += remain;
1769                 }
1770
1771                 msize = win_g.w;
1772                 if (flip)
1773                         win_g.x += r_g.w - msize;
1774         } else {
1775                 msize = -2;
1776                 colno = split = winno / stacks;
1777                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1778         }
1779         hrh = r_g.h / colno;
1780         extra = r_g.h - (colno * hrh);
1781         win_g.h = hrh - 2;
1782
1783         /*  stack all the tiled windows */
1784         i = j = 0, s = stacks;
1785         TAILQ_FOREACH(win, &ws->winlist, entry) {
1786                 if (win->transient != 0 || win->floating != 0)
1787                         continue;
1788
1789                 if (split && i == split) {
1790                         colno = (winno - mwin) / stacks;
1791                         if (s <= (winno - mwin) % stacks)
1792                                 colno++;
1793                         split = split + colno;
1794                         hrh = (r_g.h / colno);
1795                         extra = r_g.h - (colno * hrh);
1796                         if (flip)
1797                                 win_g.x = r_g.x;
1798                         else
1799                                 win_g.x += win_g.w + 2;
1800                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1801                         if (s == 1)
1802                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1803                                     stacks;
1804                         s--;
1805                         j = 0;
1806                 }
1807                 win_g.h = hrh - 2;
1808                 if (rot) {
1809                         h_inc = win->sh.width_inc;
1810                         h_base = win->sh.base_width;
1811                 } else {
1812                         h_inc = win->sh.height_inc;
1813                         h_base = win->sh.base_height;
1814                 }
1815                 if (j == colno - 1) {
1816                         win_g.h = hrh + extra;
1817                 } else if (h_inc > 1 && h_inc < h_slice) {
1818                         /* adjust for window's requested size increment */
1819                         remain = (win_g.h - h_base) % h_inc;
1820                         missing = h_inc - remain;
1821
1822                         if (missing <= extra || j == 0) {
1823                                 extra -= missing;
1824                                 win_g.h += missing;
1825                         } else {
1826                                 win_g.h -= remain;
1827                                 extra += remain;
1828                         }
1829                 }
1830
1831                 if (j == 0)
1832                         win_g.y = r_g.y;
1833                 else
1834                         win_g.y += last_h + 2;
1835
1836                 bzero(&wc, sizeof wc);
1837                 wc.border_width = 1;
1838                 if (rot) {
1839                         win->g.x = wc.x = win_g.y;
1840                         win->g.y = wc.y = win_g.x;
1841                         win->g.w = wc.width = win_g.h;
1842                         win->g.h = wc.height = win_g.w;
1843                 } else {
1844                         win->g.x = wc.x = win_g.x;
1845                         win->g.y = wc.y = win_g.y;
1846                         win->g.w = wc.width = win_g.w;
1847                         win->g.h = wc.height = win_g.h;
1848                 }
1849                 adjust_font(win);
1850                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1851                 XConfigureWindow(display, win->id, mask, &wc);
1852                 XMapRaised(display, win->id);
1853
1854                 last_h = win_g.h;
1855                 i++;
1856                 j++;
1857         }
1858
1859  notiles:
1860         /* now, stack all the floaters and transients */
1861         TAILQ_FOREACH(win, &ws->winlist, entry) {
1862                 if (win->transient == 0 && win->floating == 0)
1863                         continue;
1864
1865                 stack_floater(win, ws->r);
1866                 XMapRaised(display, win->id);
1867         }
1868 }
1869
1870 void
1871 vertical_config(struct workspace *ws, int id)
1872 {
1873         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1874
1875         switch (id) {
1876         case SWM_ARG_ID_STACKRESET:
1877         case SWM_ARG_ID_STACKINIT:
1878                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1879                 ws->l_state.vertical_mwin = 1;
1880                 ws->l_state.vertical_stacks = 1;
1881                 break;
1882         case SWM_ARG_ID_MASTERSHRINK:
1883                 if (ws->l_state.vertical_msize > 1)
1884                         ws->l_state.vertical_msize--;
1885                 break;
1886         case SWM_ARG_ID_MASTERGROW:
1887                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1888                         ws->l_state.vertical_msize++;
1889                 break;
1890         case SWM_ARG_ID_MASTERADD:
1891                 ws->l_state.vertical_mwin++;
1892                 break;
1893         case SWM_ARG_ID_MASTERDEL:
1894                 if (ws->l_state.vertical_mwin > 0)
1895                         ws->l_state.vertical_mwin--;
1896                 break;
1897         case SWM_ARG_ID_STACKINC:
1898                 ws->l_state.vertical_stacks++;
1899                 break;
1900         case SWM_ARG_ID_STACKDEC:
1901                 if (ws->l_state.vertical_stacks > 1)
1902                         ws->l_state.vertical_stacks--;
1903                 break;
1904         default:
1905                 return;
1906         }
1907 }
1908
1909 void
1910 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1911 {
1912         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1913
1914         stack_master(ws, g, 0, 0);
1915 }
1916
1917 void
1918 horizontal_config(struct workspace *ws, int id)
1919 {
1920         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1921
1922         switch (id) {
1923         case SWM_ARG_ID_STACKRESET:
1924         case SWM_ARG_ID_STACKINIT:
1925                 ws->l_state.horizontal_mwin = 1;
1926                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1927                 ws->l_state.horizontal_stacks = 1;
1928                 break;
1929         case SWM_ARG_ID_MASTERSHRINK:
1930                 if (ws->l_state.horizontal_msize > 1)
1931                         ws->l_state.horizontal_msize--;
1932                 break;
1933         case SWM_ARG_ID_MASTERGROW:
1934                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1935                         ws->l_state.horizontal_msize++;
1936                 break;
1937         case SWM_ARG_ID_MASTERADD:
1938                 ws->l_state.horizontal_mwin++;
1939                 break;
1940         case SWM_ARG_ID_MASTERDEL:
1941                 if (ws->l_state.horizontal_mwin > 0)
1942                         ws->l_state.horizontal_mwin--;
1943                 break;
1944         case SWM_ARG_ID_STACKINC:
1945                 ws->l_state.horizontal_stacks++;
1946                 break;
1947         case SWM_ARG_ID_STACKDEC:
1948                 if (ws->l_state.horizontal_stacks > 1)
1949                         ws->l_state.horizontal_stacks--;
1950                 break;
1951         default:
1952                 return;
1953         }
1954 }
1955
1956 void
1957 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1958 {
1959         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1960
1961         stack_master(ws, g, 1, 0);
1962 }
1963
1964 /* fullscreen view */
1965 void
1966 max_stack(struct workspace *ws, struct swm_geometry *g)
1967 {
1968         XWindowChanges          wc;
1969         struct swm_geometry     gg = *g;
1970         struct ws_win           *win, *wintrans = NULL;
1971         unsigned int            mask;
1972         int                     winno;
1973
1974         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1975
1976         if (ws == NULL)
1977                 return;
1978
1979         winno = count_win(ws, 0);
1980         if (winno == 0 && count_win(ws, 1) == 0)
1981                 return;
1982
1983         TAILQ_FOREACH(win, &ws->winlist, entry) {
1984                 if (win->transient != 0) {
1985                         wintrans = win;
1986                 } else {
1987                         bzero(&wc, sizeof wc);
1988                         wc.border_width = 1;
1989                         win->g.x = wc.x = gg.x;
1990                         win->g.y = wc.y = gg.y;
1991                         win->g.w = wc.width = gg.w;
1992                         win->g.h = wc.height = gg.h;
1993                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1994                         XConfigureWindow(display, win->id, mask, &wc);
1995
1996                         /* unmap only if we don't have multi screen */
1997                         if (win != ws->focus)
1998                                 if (!(ScreenCount(display) > 1 || outputs > 1))
1999                                         unmap_window(win);
2000                 }
2001         }
2002
2003         /* put the last transient on top */
2004         if (wintrans) {
2005                 stack_floater(wintrans, ws->r);
2006                 focus_win(wintrans); /* override */
2007         }
2008 }
2009
2010 void
2011 send_to_ws(struct swm_region *r, union arg *args)
2012 {
2013         int                     wsid = args->id;
2014         struct ws_win           *win = win, *winfocus = NULL;
2015         struct workspace        *ws, *nws;
2016         Atom                    ws_idx_atom = 0;
2017         unsigned char           ws_idx_str[SWM_PROPLEN];
2018
2019         if (r && r->ws)
2020                 win = r->ws->focus;
2021         else
2022                 return;
2023         if (win == NULL)
2024                 return;
2025
2026         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2027
2028         ws = win->ws;
2029         nws = &win->s->ws[wsid];
2030
2031         /* find a window to focus */
2032         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2033         if (TAILQ_FIRST(&ws->winlist) == win)
2034                 winfocus = TAILQ_NEXT(win, entry);
2035         else {
2036                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2037                 if (winfocus == NULL)
2038                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2039         }
2040         /* out of windows in ws so focus on nws instead if we multi screen */
2041         if (winfocus == NULL)
2042                 if (ScreenCount(display) > 1 || outputs > 1)
2043                         winfocus = win;
2044
2045         unmap_window(win);
2046         TAILQ_REMOVE(&ws->winlist, win, entry);
2047         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2048         win->ws = nws;
2049
2050         /* Try to update the window's workspace property */
2051         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2052         if (ws_idx_atom &&
2053             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2054                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2055                     ws_idx_str);
2056                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2057                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2058         }
2059
2060         if (count_win(nws, 1) == 1)
2061                 nws->focus = win;
2062         ws->restack = 1;
2063         nws->restack = 1;
2064
2065         stack();
2066         if (winfocus)
2067                 focus_win(winfocus);
2068 }
2069
2070 void
2071 wkill(struct swm_region *r, union arg *args)
2072 {
2073         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2074
2075         if(r->ws->focus == NULL)
2076                 return;
2077
2078         if (args->id == SWM_ARG_ID_KILLWINDOW)
2079                 XKillClient(display, r->ws->focus->id);
2080         else
2081                 if (r->ws->focus->can_delete)
2082                         client_msg(r->ws->focus, adelete);
2083 }
2084
2085 void
2086 floating_toggle(struct swm_region *r, union arg *args)
2087 {
2088         struct ws_win   *win = r->ws->focus;
2089
2090         if (win == NULL)
2091                 return;
2092
2093         win->floating = !win->floating;
2094         win->manual = 0;
2095         stack();
2096         focus_win(win);
2097 }
2098
2099 void
2100 resize_window(struct ws_win *win, int center)
2101 {
2102         unsigned int            mask;
2103         XWindowChanges          wc;
2104         struct swm_region       *r;
2105
2106         r = root_to_region(win->wa.root);
2107         bzero(&wc, sizeof wc);
2108         mask = CWBorderWidth | CWWidth | CWHeight;
2109         wc.border_width = 1;
2110         wc.width = win->g.w;
2111         wc.height = win->g.h;
2112         if (center == SWM_ARG_ID_CENTER) {
2113                 wc.x = (WIDTH(r) - win->g.w) / 2;
2114                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2115                 mask |= CWX | CWY;
2116         }
2117
2118         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2119             win->id, wc.x, wc.y, wc.width, wc.height);
2120
2121         XConfigureWindow(display, win->id, mask, &wc);
2122         config_win(win);
2123 }
2124
2125 void
2126 resize(struct ws_win *win, union arg *args)
2127 {
2128         XEvent                  ev;
2129         Time                    time = 0;
2130
2131         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2132             win->id, win->floating, win->transient);
2133
2134         if (!(win->transient != 0 || win->floating != 0))
2135                 return;
2136
2137         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2138             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2139                 return;
2140         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2141         do {
2142                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2143                     SubstructureRedirectMask, &ev);
2144                 switch(ev.type) {
2145                 case ConfigureRequest:
2146                 case Expose:
2147                 case MapRequest:
2148                         handler[ev.type](&ev);
2149                         break;
2150                 case MotionNotify:
2151                         if (ev.xmotion.x <= 1)
2152                                 ev.xmotion.x = 1;
2153                         if (ev.xmotion.y <= 1)
2154                                 ev.xmotion.y = 1;
2155                         win->g.w = ev.xmotion.x;
2156                         win->g.h = ev.xmotion.y;
2157
2158                         /* not free, don't sync more than 60 times / second */
2159                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2160                                 time = ev.xmotion.time;
2161                                 XSync(display, False);
2162                                 resize_window(win, args->id);
2163                         }
2164                         break;
2165                 }
2166         } while (ev.type != ButtonRelease);
2167         if (time) {
2168                 XSync(display, False);
2169                 resize_window(win, args->id);
2170         }
2171         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2172             win->g.h - 1);
2173         XUngrabPointer(display, CurrentTime);
2174
2175         /* drain events */
2176         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2177 }
2178
2179 void
2180 move_window(struct ws_win *win)
2181 {
2182         unsigned int            mask;
2183         XWindowChanges          wc;
2184         struct swm_region       *r;
2185
2186         r = root_to_region(win->wa.root);
2187         bzero(&wc, sizeof wc);
2188         mask = CWX | CWY;
2189         wc.x = win->g.x;
2190         wc.y = win->g.y;
2191
2192         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2193             win->id, wc.x, wc.y, wc.width, wc.height);
2194
2195         XConfigureWindow(display, win->id, mask, &wc);
2196         config_win(win);
2197 }
2198
2199 void
2200 move(struct ws_win *win, union arg *args)
2201 {
2202         XEvent                  ev;
2203         Time                    time = 0;
2204         int                     restack = 0;
2205
2206         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2207             win->id, win->floating, win->transient);
2208
2209         if (win->floating == 0) {
2210                 win->floating = 1;
2211                 win->manual = 1;
2212                 restack = 1;
2213         }
2214
2215         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2216             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2217                 return;
2218         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2219         do {
2220                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2221                     SubstructureRedirectMask, &ev);
2222                 switch(ev.type) {
2223                 case ConfigureRequest:
2224                 case Expose:
2225                 case MapRequest:
2226                         handler[ev.type](&ev);
2227                         break;
2228                 case MotionNotify:
2229                         win->g.x = ev.xmotion.x_root;
2230                         win->g.y = ev.xmotion.y_root;
2231
2232                         /* not free, don't sync more than 60 times / second */
2233                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2234                                 time = ev.xmotion.time;
2235                                 XSync(display, False);
2236                                 move_window(win);
2237                         }
2238                         break;
2239                 }
2240         } while (ev.type != ButtonRelease);
2241         if (time) {
2242                 XSync(display, False);
2243                 move_window(win);
2244         }
2245         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2246         XUngrabPointer(display, CurrentTime);
2247         if (restack)
2248                 stack();
2249
2250         /* drain events */
2251         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2252 }
2253
2254 /* key definitions */
2255 void
2256 dummykeyfunc(struct swm_region *r, union arg *args)
2257 {
2258 };
2259
2260 void
2261 legacyfunc(struct swm_region *r, union arg *args)
2262 {
2263 };
2264
2265 struct keyfunc {
2266         char                    name[SWM_FUNCNAME_LEN];
2267         void                    (*func)(struct swm_region *r, union arg *);
2268         union arg               args;
2269 } keyfuncs[kf_invalid + 1] = {
2270         /* name                 function        argument */
2271         { "cycle_layout",       cycle_layout,   {0} },
2272         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2273         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2274         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2275         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2276         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2277         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2278         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2279         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2280         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2281         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2282         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2283         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2284         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2285         { "spawn_menu",         legacyfunc,     {0} },
2286         { "quit",               quit,           {0} },
2287         { "restart",            restart,        {0} },
2288         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2289         { "ws_1",               switchws,       {.id = 0} },
2290         { "ws_2",               switchws,       {.id = 1} },
2291         { "ws_3",               switchws,       {.id = 2} },
2292         { "ws_4",               switchws,       {.id = 3} },
2293         { "ws_5",               switchws,       {.id = 4} },
2294         { "ws_6",               switchws,       {.id = 5} },
2295         { "ws_7",               switchws,       {.id = 6} },
2296         { "ws_8",               switchws,       {.id = 7} },
2297         { "ws_9",               switchws,       {.id = 8} },
2298         { "ws_10",              switchws,       {.id = 9} },
2299         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2300         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2301         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2302         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2303         { "mvws_1",             send_to_ws,     {.id = 0} },
2304         { "mvws_2",             send_to_ws,     {.id = 1} },
2305         { "mvws_3",             send_to_ws,     {.id = 2} },
2306         { "mvws_4",             send_to_ws,     {.id = 3} },
2307         { "mvws_5",             send_to_ws,     {.id = 4} },
2308         { "mvws_6",             send_to_ws,     {.id = 5} },
2309         { "mvws_7",             send_to_ws,     {.id = 6} },
2310         { "mvws_8",             send_to_ws,     {.id = 7} },
2311         { "mvws_9",             send_to_ws,     {.id = 8} },
2312         { "mvws_10",            send_to_ws,     {.id = 9} },
2313         { "bar_toggle",         bar_toggle,     {0} },
2314         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2315         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2316         { "screenshot_all",     legacyfunc,     {0} },
2317         { "screenshot_wind",    legacyfunc,     {0} },
2318         { "float_toggle",       floating_toggle,{0} },
2319         { "version",            version,        {0} },
2320         { "spawn_lock",         legacyfunc,     {0} },
2321         { "spawn_initscr",      legacyfunc,     {0} },
2322         { "spawn_custom",       dummykeyfunc,   {0} },
2323         { "invalid key func",   NULL,           {0} },
2324 };
2325 struct key {
2326         unsigned int            mod;
2327         KeySym                  keysym;
2328         enum keyfuncid          funcid;
2329         char                    *spawn_name;
2330 };
2331 int                             keys_size = 0, keys_length = 0;
2332 struct key                      *keys = NULL;
2333
2334 /* mouse */
2335 enum { client_click, root_click };
2336 struct button {
2337         unsigned int            action;
2338         unsigned int            mask;
2339         unsigned int            button;
2340         void                    (*func)(struct ws_win *, union arg *);
2341         union arg               args;
2342 } buttons[] = {
2343           /* action     key             mouse button    func    args */
2344         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2345         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2346         { client_click, MODKEY,         Button1,        move,   {0} },
2347 };
2348
2349 void
2350 update_modkey(unsigned int mod)
2351 {
2352         int                     i;
2353
2354         mod_key = mod;
2355         for (i = 0; i < keys_length; i++)
2356                 if (keys[i].mod & ShiftMask)
2357                         keys[i].mod = mod | ShiftMask;
2358                 else
2359                         keys[i].mod = mod;
2360
2361         for (i = 0; i < LENGTH(buttons); i++)
2362                 if (buttons[i].mask & ShiftMask)
2363                         buttons[i].mask = mod | ShiftMask;
2364                 else
2365                         buttons[i].mask = mod;
2366 }
2367
2368 /* spawn */
2369 struct spawn_prog {
2370         char                    *name;
2371         int                     argc;
2372         char                    **argv;
2373 };
2374
2375 int                             spawns_size = 0, spawns_length = 0;
2376 struct spawn_prog               *spawns = NULL;
2377
2378 void
2379 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2380 {
2381         union arg               a;
2382         struct spawn_prog       *prog = NULL;
2383         int                     i;
2384         char                    *ap, **real_args;
2385
2386         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2387
2388         /* find program */
2389         for (i = 0; i < spawns_length; i++) {
2390                 if (!strcasecmp(spawn_name, spawns[i].name))
2391                         prog = &spawns[i];
2392         }
2393         if (prog == NULL) {
2394                 fprintf(stderr, "spawn_custom: program %s not found\n",
2395                     spawn_name);
2396                 return;
2397         }
2398
2399         /* make room for expanded args */
2400         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2401                 err(1, "spawn_custom: calloc real_args");
2402
2403         /* expand spawn_args into real_args */
2404         for (i = 0; i < prog->argc; i++) {
2405                 ap = prog->argv[i];
2406                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2407                 if (!strcasecmp(ap, "$bar_border")) {
2408                         if ((real_args[i] =
2409                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2410                             == NULL)
2411                                 err(1,  "spawn_custom border color");
2412                 } else if (!strcasecmp(ap, "$bar_color")) {
2413                         if ((real_args[i] =
2414                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2415                             == NULL)
2416                                 err(1, "spawn_custom bar color");
2417                 } else if (!strcasecmp(ap, "$bar_font")) {
2418                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2419                             == NULL)
2420                                 err(1, "spawn_custom bar fonts");
2421                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2422                         if ((real_args[i] =
2423                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2424                             == NULL)
2425                                 err(1, "spawn_custom color font");
2426                 } else if (!strcasecmp(ap, "$color_focus")) {
2427                         if ((real_args[i] =
2428                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2429                             == NULL)
2430                                 err(1, "spawn_custom color focus");
2431                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2432                         if ((real_args[i] =
2433                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2434                             == NULL)
2435                                 err(1, "spawn_custom color unfocus");
2436                 } else {
2437                         /* no match --> copy as is */
2438                         if ((real_args[i] = strdup(ap)) == NULL)
2439                                 err(1, "spawn_custom strdup(ap)");
2440                 }
2441                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2442                     real_args[i]);
2443         }
2444
2445 #ifdef SWM_DEBUG
2446         if ((swm_debug & SWM_D_SPAWN) != 0) {
2447                 fprintf(stderr, "spawn_custom: result = ");
2448                 for (i = 0; i < prog->argc; i++)
2449                         fprintf(stderr, "\"%s\" ", real_args[i]);
2450                 fprintf(stderr, "\n");
2451         }
2452 #endif
2453
2454         a.argv = real_args;
2455         spawn(r, &a);
2456         for (i = 0; i < prog->argc; i++)
2457                 free(real_args[i]);
2458         free(real_args);
2459 }
2460
2461 void
2462 setspawn(struct spawn_prog *prog)
2463 {
2464         int                     i, j;
2465
2466         if (prog == NULL || prog->name == NULL)
2467                 return;
2468
2469         /* find existing */
2470         for (i = 0; i < spawns_length; i++) {
2471                 if (!strcmp(spawns[i].name, prog->name)) {
2472                         /* found */
2473                         if (prog->argv == NULL) {
2474                                 /* delete */
2475                                 DNPRINTF(SWM_D_SPAWN,
2476                                     "setspawn: delete #%d %s\n",
2477                                     i, spawns[i].name);
2478                                 free(spawns[i].name);
2479                                 for (j = 0; j < spawns[i].argc; j++)
2480                                         free(spawns[i].argv[j]);
2481                                 free(spawns[i].argv);
2482                                 j = spawns_length - 1;
2483                                 if (i < j)
2484                                         spawns[i] = spawns[j];
2485                                 spawns_length--;
2486                                 free(prog->name);
2487                         } else {
2488                                 /* replace */
2489                                 DNPRINTF(SWM_D_SPAWN,
2490                                     "setspawn: replace #%d %s\n",
2491                                     i, spawns[i].name);
2492                                 free(spawns[i].name);
2493                                 for (j = 0; j < spawns[i].argc; j++)
2494                                         free(spawns[i].argv[j]);
2495                                 free(spawns[i].argv);
2496                                 spawns[i] = *prog;
2497                         }
2498                         /* found case handled */
2499                         free(prog);
2500                         return;
2501                 }
2502         }
2503
2504         if (prog->argv == NULL) {
2505                 fprintf(stderr,
2506                     "error: setspawn: cannot find program %s", prog->name);
2507                 free(prog);
2508                 return;
2509         }
2510
2511         /* not found: add */
2512         if (spawns_size == 0 || spawns == NULL) {
2513                 spawns_size = 4;
2514                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2515                 spawns = malloc((size_t)spawns_size *
2516                     sizeof(struct spawn_prog));
2517                 if (spawns == NULL) {
2518                         fprintf(stderr, "setspawn: malloc failed\n");
2519                         perror(" failed");
2520                         quit(NULL, NULL);
2521                 }
2522         } else if (spawns_length == spawns_size) {
2523                 spawns_size *= 2;
2524                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2525                 spawns = realloc(spawns, (size_t)spawns_size *
2526                     sizeof(struct spawn_prog));
2527                 if (spawns == NULL) {
2528                         fprintf(stderr, "setspawn: realloc failed\n");
2529                         perror(" failed");
2530                         quit(NULL, NULL);
2531                 }
2532         }
2533
2534         if (spawns_length < spawns_size) {
2535                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2536                     spawns_length, prog->name);
2537                 i = spawns_length++;
2538                 spawns[i] = *prog;
2539         } else {
2540                 fprintf(stderr, "spawns array problem?\n");
2541                 if (spawns == NULL) {
2542                         fprintf(stderr, "spawns array is NULL!\n");
2543                         quit(NULL, NULL);
2544                 }
2545         }
2546         free(prog);
2547 }
2548
2549 int
2550 setconfspawn(char *selector, char *value, int flags)
2551 {
2552         struct spawn_prog       *prog;
2553         char                    *vp, *cp, *word;
2554
2555         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2556         if ((prog = calloc(1, sizeof *prog)) == NULL)
2557                 err(1, "setconfspawn: calloc prog");
2558         prog->name = strdup(selector);
2559         if (prog->name == NULL)
2560                 err(1, "setconfspawn prog->name");
2561         if ((cp = vp = strdup(value)) == NULL)
2562                 err(1, "setconfspawn: strdup(value) ");
2563         while ((word = strsep(&cp, " \t")) != NULL) {
2564                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2565                 if (cp)
2566                         cp += (long)strspn(cp, " \t");
2567                 if (strlen(word) > 0) {
2568                         prog->argc++;
2569                         prog->argv = realloc(prog->argv,
2570                             prog->argc * sizeof(char *));
2571                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2572                                 err(1, "setconfspawn: strdup");
2573                 }
2574         }
2575         free(vp);
2576
2577         setspawn(prog);
2578
2579         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2580         return (0);
2581 }
2582
2583 void
2584 setup_spawn(void)
2585 {
2586         setconfspawn("term",            "xterm",                0);
2587         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2588         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2589         setconfspawn("lock",            "xlock",                0);
2590         setconfspawn("initscr",         "initscreen.sh",        0);
2591         setconfspawn("menu",            "dmenu_run"
2592                                         " -fn $bar_font"
2593                                         " -nb $bar_color"
2594                                         " -nf $bar_font_color"
2595                                         " -sb $bar_border"
2596                                         " -sf $bar_color",      0);
2597 }
2598
2599 /* key bindings */
2600 #define SWM_MODNAME_SIZE        32
2601 #define SWM_KEY_WS              "\n+ \t"
2602 int
2603 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2604 {
2605         char                    *cp, *name;
2606         KeySym                  uks;
2607         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2608         if (mod == NULL || ks == NULL) {
2609                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2610                 return (1);
2611         }
2612         if (keystr == NULL || strlen(keystr) == 0) {
2613                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2614                 return (1);
2615         }
2616         cp = keystr;
2617         *ks = NoSymbol;
2618         *mod = 0;
2619         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2620                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2621                 if (cp)
2622                         cp += (long)strspn(cp, SWM_KEY_WS);
2623                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2624                         *mod |= currmod;
2625                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2626                         *mod |= Mod1Mask;
2627                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2628                         *mod += Mod2Mask;
2629                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2630                         *mod |= Mod3Mask;
2631                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2632                         *mod |= Mod4Mask;
2633                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2634                         *mod |= ShiftMask;
2635                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2636                         *mod |= ControlMask;
2637                 else {
2638                         *ks = XStringToKeysym(name);
2639                         XConvertCase(*ks, ks, &uks);
2640                         if (ks == NoSymbol) {
2641                                 DNPRINTF(SWM_D_KEY,
2642                                     "parsekeys: invalid key %s\n",
2643                                     name);
2644                                 return (1);
2645                         }
2646                 }
2647         }
2648         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2649         return (0);
2650 }
2651
2652 char *
2653 strdupsafe(char *str)
2654 {
2655         if (str == NULL)
2656                 return (NULL);
2657         else
2658                 return (strdup(str));
2659 }
2660
2661 void
2662 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2663 {
2664         int                     i, j;
2665         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2666             keyfuncs[kfid].name, spawn_name);
2667         /* find existing */
2668         for (i = 0; i < keys_length; i++) {
2669                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2670                         if (kfid == kf_invalid) {
2671                                 /* found: delete */
2672                                 DNPRINTF(SWM_D_KEY,
2673                                     "setkeybinding: delete #%d %s\n",
2674                                     i, keyfuncs[keys[i].funcid].name);
2675                                 free(keys[i].spawn_name);
2676                                 j = keys_length - 1;
2677                                 if (i < j)
2678                                         keys[i] = keys[j];
2679                                 keys_length--;
2680                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2681                                 return;
2682                         } else {
2683                                 /* found: replace */
2684                                 DNPRINTF(SWM_D_KEY,
2685                                     "setkeybinding: replace #%d %s %s\n",
2686                                     i, keyfuncs[keys[i].funcid].name,
2687                                     spawn_name);
2688                                 free(keys[i].spawn_name);
2689                                 keys[i].mod = mod;
2690                                 keys[i].keysym = ks;
2691                                 keys[i].funcid = kfid;
2692                                 keys[i].spawn_name = strdupsafe(spawn_name);
2693                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2694                                 return;
2695                         }
2696                 }
2697         }
2698         if (kfid == kf_invalid) {
2699                 fprintf(stderr,
2700                     "error: setkeybinding: cannot find mod/key combination");
2701                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2702                 return;
2703         }
2704         /* not found: add */
2705         if (keys_size == 0 || keys == NULL) {
2706                 keys_size = 4;
2707                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2708                 keys = malloc((size_t)keys_size * sizeof(struct key));
2709                 if (!keys) {
2710                         fprintf(stderr, "malloc failed\n");
2711                         perror(" failed");
2712                         quit(NULL, NULL);
2713                 }
2714         } else if (keys_length == keys_size) {
2715                 keys_size *= 2;
2716                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2717                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2718                 if (!keys) {
2719                         fprintf(stderr, "realloc failed\n");
2720                         perror(" failed");
2721                         quit(NULL, NULL);
2722                 }
2723         }
2724         if (keys_length < keys_size) {
2725                 j = keys_length++;
2726                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2727                     j, keyfuncs[kfid].name, spawn_name);
2728                 keys[j].mod = mod;
2729                 keys[j].keysym = ks;
2730                 keys[j].funcid = kfid;
2731                 keys[j].spawn_name = strdupsafe(spawn_name);
2732         } else {
2733                 fprintf(stderr, "keys array problem?\n");
2734                 if (!keys) {
2735                         fprintf(stderr, "keys array problem\n");
2736                         quit(NULL, NULL);
2737                 }
2738         }
2739         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2740 }
2741
2742 int
2743 setconfbinding(char *selector, char *value, int flags)
2744 {
2745         enum keyfuncid          kfid;
2746         unsigned int            mod;
2747         KeySym                  ks;
2748         int                     i;
2749         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2750         if (selector == NULL) {
2751                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2752                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2753                         kfid = kf_invalid;
2754                         setkeybinding(mod, ks, kfid, NULL);
2755                         return (0);
2756                 } else
2757                         return (1);
2758         }
2759         /* search by key function name */
2760         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2761                 if (strncasecmp(selector, keyfuncs[kfid].name,
2762                     SWM_FUNCNAME_LEN) == 0) {
2763                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2764                             selector);
2765                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2766                                 setkeybinding(mod, ks, kfid, NULL);
2767                                 return (0);
2768                         } else
2769                                 return (1);
2770                 }
2771         }
2772         /* search by custom spawn name */
2773         for (i = 0; i < spawns_length; i++) {
2774                 if (strcasecmp(selector, spawns[i].name) == 0) {
2775                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2776                             selector);
2777                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2778                                 setkeybinding(mod, ks, kf_spawn_custom,
2779                                     spawns[i].name);
2780                                 return (0);
2781                         } else
2782                                 return (1);
2783                 }
2784         }
2785         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2786         return (1);
2787 }
2788
2789 void
2790 setup_keys(void)
2791 {
2792         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2793         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2794         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2795         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2796         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2797         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2798         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2799         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2800         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2801         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2802         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2803         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2804         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2805         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2806         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2807         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2808         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2809         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2810         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2811         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2812         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2813         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2814         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2815         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2816         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2817         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2818         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2819         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2820         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2821         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2822         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2823         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2824         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2825         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2826         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2827         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2828         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2829         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2830         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2831         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2832         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2833         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2834         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2835         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2836         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2837         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2838         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2839         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2840         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2841         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2842         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2843         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2844         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2845 }
2846
2847 void
2848 updatenumlockmask(void)
2849 {
2850         unsigned int            i, j;
2851         XModifierKeymap         *modmap;
2852
2853         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2854         numlockmask = 0;
2855         modmap = XGetModifierMapping(display);
2856         for (i = 0; i < 8; i++)
2857                 for (j = 0; j < modmap->max_keypermod; j++)
2858                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2859                           == XKeysymToKeycode(display, XK_Num_Lock))
2860                                 numlockmask = (1 << i);
2861
2862         XFreeModifiermap(modmap);
2863 }
2864
2865 void
2866 grabkeys(void)
2867 {
2868         unsigned int            i, j, k;
2869         KeyCode                 code;
2870         unsigned int            modifiers[] =
2871             { 0, LockMask, numlockmask, numlockmask | LockMask };
2872
2873         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2874         updatenumlockmask();
2875
2876         for (k = 0; k < ScreenCount(display); k++) {
2877                 if (TAILQ_EMPTY(&screens[k].rl))
2878                         continue;
2879                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2880                 for (i = 0; i < keys_length; i++) {
2881                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2882                                 for (j = 0; j < LENGTH(modifiers); j++)
2883                                         XGrabKey(display, code,
2884                                             keys[i].mod | modifiers[j],
2885                                             screens[k].root, True,
2886                                             GrabModeAsync, GrabModeAsync);
2887                 }
2888         }
2889 }
2890
2891 void
2892 grabbuttons(struct ws_win *win, int focused)
2893 {
2894         unsigned int            i, j;
2895         unsigned int            modifiers[] =
2896             { 0, LockMask, numlockmask, numlockmask|LockMask };
2897
2898         updatenumlockmask();
2899         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2900         if(focused) {
2901                 for (i = 0; i < LENGTH(buttons); i++)
2902                         if (buttons[i].action == client_click)
2903                                 for (j = 0; j < LENGTH(modifiers); j++)
2904                                         XGrabButton(display, buttons[i].button,
2905                                             buttons[i].mask | modifiers[j],
2906                                             win->id, False, BUTTONMASK,
2907                                             GrabModeAsync, GrabModeSync, None,
2908                                             None);
2909         } else
2910                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2911                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2912 }
2913
2914 const char *quirkname[] = {
2915         "NONE",         /* config string for "no value" */
2916         "FLOAT",
2917         "TRANSSZ",
2918         "ANYWHERE",
2919         "XTERM_FONTADJ",
2920         "FULLSCREEN",
2921 };
2922
2923 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2924 #define SWM_Q_WS                "\n|+ \t"
2925 int
2926 parsequirks(char *qstr, unsigned long *quirk)
2927 {
2928         char                    *cp, *name;
2929         int                     i;
2930
2931         if (quirk == NULL)
2932                 return (1);
2933
2934         cp = qstr;
2935         *quirk = 0;
2936         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2937                 if (cp)
2938                         cp += (long)strspn(cp, SWM_Q_WS);
2939                 for (i = 0; i < LENGTH(quirkname); i++) {
2940                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2941                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2942                                 if (i == 0) {
2943                                         *quirk = 0;
2944                                         return (0);
2945                                 }
2946                                 *quirk |= 1 << (i-1);
2947                                 break;
2948                         }
2949                 }
2950                 if (i >= LENGTH(quirkname)) {
2951                         DNPRINTF(SWM_D_QUIRK,
2952                             "parsequirks: invalid quirk [%s]\n", name);
2953                         return (1);
2954                 }
2955         }
2956         return (0);
2957 }
2958
2959 void
2960 setquirk(const char *class, const char *name, const int quirk)
2961 {
2962         int                     i, j;
2963
2964         /* find existing */
2965         for (i = 0; i < quirks_length; i++) {
2966                 if (!strcmp(quirks[i].class, class) &&
2967                     !strcmp(quirks[i].name, name)) {
2968                         if (!quirk) {
2969                                 /* found: delete */
2970                                 DNPRINTF(SWM_D_QUIRK,
2971                                     "setquirk: delete #%d %s:%s\n",
2972                                     i, quirks[i].class, quirks[i].name);
2973                                 free(quirks[i].class);
2974                                 free(quirks[i].name);
2975                                 j = quirks_length - 1;
2976                                 if (i < j)
2977                                         quirks[i] = quirks[j];
2978                                 quirks_length--;
2979                                 return;
2980                         } else {
2981                                 /* found: replace */
2982                                 DNPRINTF(SWM_D_QUIRK,
2983                                     "setquirk: replace #%d %s:%s\n",
2984                                     i, quirks[i].class, quirks[i].name);
2985                                 free(quirks[i].class);
2986                                 free(quirks[i].name);
2987                                 quirks[i].class = strdup(class);
2988                                 quirks[i].name = strdup(name);
2989                                 quirks[i].quirk = quirk;
2990                                 return;
2991                         }
2992                 }
2993         }
2994         if (!quirk) {
2995                 fprintf(stderr,
2996                     "error: setquirk: cannot find class/name combination");
2997                 return;
2998         }
2999         /* not found: add */
3000         if (quirks_size == 0 || quirks == NULL) {
3001                 quirks_size = 4;
3002                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
3003                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
3004                 if (!quirks) {
3005                         fprintf(stderr, "setquirk: malloc failed\n");
3006                         perror(" failed");
3007                         quit(NULL, NULL);
3008                 }
3009         } else if (quirks_length == quirks_size) {
3010                 quirks_size *= 2;
3011                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
3012                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
3013                 if (!quirks) {
3014                         fprintf(stderr, "setquirk: realloc failed\n");
3015                         perror(" failed");
3016                         quit(NULL, NULL);
3017                 }
3018         }
3019         if (quirks_length < quirks_size) {
3020                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
3021                 j = quirks_length++;
3022                 quirks[j].class = strdup(class);
3023                 quirks[j].name = strdup(name);
3024                 quirks[j].quirk = quirk;
3025         } else {
3026                 fprintf(stderr, "quirks array problem?\n");
3027                 if (!quirks) {
3028                         fprintf(stderr, "quirks array problem!\n");
3029                         quit(NULL, NULL);
3030                 }
3031         }
3032 }
3033
3034 int
3035 setconfquirk(char *selector, char *value, int flags)
3036 {
3037         char                    *cp, *class, *name;
3038         int                     retval;
3039         unsigned long           quirks;
3040         if (selector == NULL)
3041                 return (0);
3042         if ((cp = strchr(selector, ':')) == NULL)
3043                 return (0);
3044         *cp = '\0';
3045         class = selector;
3046         name = cp + 1;
3047         if ((retval = parsequirks(value, &quirks)) == 0)
3048                 setquirk(class, name, quirks);
3049         return (retval);
3050 }
3051
3052 void
3053 setup_quirks(void)
3054 {
3055         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3056         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3057         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3058         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3059         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3060         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3061         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3062         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3063         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3064         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3065         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3066         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3067         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3068 }
3069
3070 /* conf file stuff */
3071 #define SWM_CONF_FILE   "scrotwm.conf"
3072
3073 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3074           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3075           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3076           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3077           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3078
3079 int
3080 setconfvalue(char *selector, char *value, int flags)
3081 {
3082         switch (flags) {
3083         case SWM_S_BAR_DELAY:
3084                 bar_delay = atoi(value);
3085                 break;
3086         case SWM_S_BAR_ENABLED:
3087                 bar_enabled = atoi(value);
3088                 break;
3089         case SWM_S_STACK_ENABLED:
3090                 stack_enabled = atoi(value);
3091                 break;
3092         case SWM_S_CLOCK_ENABLED:
3093                 clock_enabled = atoi(value);
3094                 break;
3095         case SWM_S_CYCLE_EMPTY:
3096                 cycle_empty = atoi(value);
3097                 break;
3098         case SWM_S_CYCLE_VISIBLE:
3099                 cycle_visible = atoi(value);
3100                 break;
3101         case SWM_S_SS_ENABLED:
3102                 ss_enabled = atoi(value);
3103                 break;
3104         case SWM_S_TERM_WIDTH:
3105                 term_width = atoi(value);
3106                 break;
3107         case SWM_S_TITLE_CLASS_ENABLED:
3108                 title_class_enabled = atoi(value);
3109                 break;
3110         case SWM_S_TITLE_NAME_ENABLED:
3111                 title_name_enabled = atoi(value);
3112                 break;
3113         case SWM_S_BAR_FONT:
3114                 free(bar_fonts[0]);
3115                 if ((bar_fonts[0] = strdup(value)) == NULL)
3116                         err(1, "setconfvalue: bar_font");
3117                 break;
3118         case SWM_S_BAR_ACTION:
3119                 free(bar_argv[0]);
3120                 if ((bar_argv[0] = strdup(value)) == NULL)
3121                         err(1, "setconfvalue: bar_action");
3122                 break;
3123         case SWM_S_SPAWN_TERM:
3124                 free(spawn_term[0]);
3125                 if ((spawn_term[0] = strdup(value)) == NULL)
3126                         err(1, "setconfvalue: spawn_term");
3127                 break;
3128         case SWM_S_SS_APP:
3129                 break;
3130         case SWM_S_DIALOG_RATIO:
3131                 dialog_ratio = atof(value);
3132                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3133                         dialog_ratio = .6;
3134                 break;
3135         default:
3136                 return (1);
3137         }
3138         return (0);
3139 }
3140
3141 int
3142 setconfmodkey(char *selector, char *value, int flags)
3143 {
3144         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3145                 update_modkey(Mod1Mask);
3146         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3147                 update_modkey(Mod2Mask);
3148         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3149                 update_modkey(Mod3Mask);
3150         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3151                 update_modkey(Mod4Mask);
3152         else
3153                 return (1);
3154         return (0);
3155 }
3156
3157 int
3158 setconfcolor(char *selector, char *value, int flags)
3159 {
3160         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3161         return (0);
3162 }
3163
3164 int
3165 setconfregion(char *selector, char *value, int flags)
3166 {
3167         custom_region(value);
3168         return (0);
3169 }
3170
3171 /* config options */
3172 struct config_option {
3173         char                    *optname;
3174         int (*func)(char*, char*, int);
3175         int funcflags;
3176 };
3177 struct config_option configopt[] = {
3178         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3179         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3180         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3181         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3182         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3183         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3184         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3185         { "bind",                       setconfbinding, 0 },
3186         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3187         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3188         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3189         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3190         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3191         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3192         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3193         { "modkey",                     setconfmodkey,  0 },
3194         { "program",                    setconfspawn,   0 },
3195         { "quirk",                      setconfquirk,   0 },
3196         { "region",                     setconfregion,  0 },
3197         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3198         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3199         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3200         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3201         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3202         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3203 };
3204
3205
3206 int
3207 conf_load(char *filename)
3208 {
3209         FILE                    *config;
3210         char                    *line, *cp, *optsub, *optval;
3211         size_t                  linelen, lineno = 0;
3212         int                     wordlen, i, optind;
3213         struct config_option    *opt;
3214
3215         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3216
3217         if (filename == NULL) {
3218                 fprintf(stderr, "conf_load: no filename\n");
3219                 return (1);
3220         }
3221         if ((config = fopen(filename, "r")) == NULL) {
3222                 warn("conf_load: fopen");
3223                 return (1);
3224         }
3225
3226         while (!feof(config)) {
3227                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3228                     == NULL) {
3229                         if (ferror(config))
3230                                 err(1, "%s", filename);
3231                         else
3232                                 continue;
3233                 }
3234                 cp = line;
3235                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3236                 if (cp[0] == '\0') {
3237                         /* empty line */
3238                         free(line);
3239                         continue;
3240                 }
3241                 /* get config option */
3242                 wordlen = strcspn(cp, "=[ \t\n");
3243                 if (wordlen == 0) {
3244                         warnx("%s: line %zd: no option found",
3245                             filename, lineno);
3246                         return (1);
3247                 }
3248                 optind = -1;
3249                 for (i = 0; i < LENGTH(configopt); i++) {
3250                         opt = &configopt[i];
3251                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3252                             strlen(opt->optname) == wordlen) {
3253                                 optind = i;
3254                                 break;
3255                         }
3256                 }
3257                 if (optind == -1) {
3258                         warnx("%s: line %zd: unknown option %.*s",
3259                             filename, lineno, wordlen, cp);
3260                         return (1);
3261                 }
3262                 cp += wordlen;
3263                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3264                 /* get [selector] if any */
3265                 optsub = NULL;
3266                 if (*cp == '[') {
3267                         cp++;
3268                         wordlen = strcspn(cp, "]");
3269                         if (*cp != ']') {
3270                                 if (wordlen == 0) {
3271                                         warnx("%s: line %zd: syntax error",
3272                                             filename, lineno);
3273                                         return (1);
3274                                 }
3275                                 asprintf(&optsub, "%.*s", wordlen, cp);
3276                         }
3277                         cp += wordlen;
3278                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3279                 }
3280                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3281                 /* get RHS value */
3282                 optval = strdup(cp);
3283                 /* call function to deal with it all */
3284                 if (configopt[optind].func(optsub, optval,
3285                     configopt[optind].funcflags) != 0) {
3286                         fprintf(stderr, "%s line %zd: %s\n",
3287                             filename, lineno, line);
3288                         errx(1, "%s: line %zd: invalid data for %s",
3289                             filename, lineno, configopt[optind].optname);
3290                 }
3291                 free(optval);
3292                 free(optsub);
3293                 free(line);
3294         }
3295
3296         fclose(config);
3297         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3298
3299         return (0);
3300 }
3301
3302 struct ws_win *
3303 manage_window(Window id)
3304 {
3305         Window                  trans = 0;
3306         struct workspace        *ws;
3307         struct ws_win           *win, *ww;
3308         int                     format, i, ws_idx, n, border_me = 0;
3309         unsigned long           nitems, bytes;
3310         Atom                    ws_idx_atom = 0, type;
3311         Atom                    *prot = NULL, *pp;
3312         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3313         struct swm_region       *r;
3314         long                    mask;
3315         const char              *errstr;
3316         XWindowChanges          wc;
3317
3318         if ((win = find_window(id)) != NULL)
3319                         return (win);   /* already being managed */
3320
3321         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3322                 errx(1, "calloc: failed to allocate memory for new window");
3323
3324         /* Get all the window data in one shot */
3325         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3326         if (ws_idx_atom)
3327                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3328                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3329         XGetWindowAttributes(display, id, &win->wa);
3330         XGetWMNormalHints(display, id, &win->sh, &mask);
3331         XGetTransientForHint(display, id, &trans);
3332         if (trans) {
3333                 win->transient = trans;
3334                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3335                     (unsigned)win->id, win->transient);
3336         }
3337         /* get supported protocols */
3338         if (XGetWMProtocols(display, id, &prot, &n)) {
3339                 for (i = 0, pp = prot; i < n; i++, pp++)
3340                         if (*pp == adelete)
3341                                 win->can_delete = 1;
3342                 if (prot)
3343                         XFree(prot);
3344         }
3345
3346         /*
3347          * Figure out where to put the window. If it was previously assigned to
3348          * a workspace (either by spawn() or manually moving), and isn't
3349          * transient, * put it in the same workspace
3350          */
3351         r = root_to_region(win->wa.root);
3352         if (prop && win->transient == 0) {
3353                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3354                 ws_idx = strtonum(prop, 0, 9, &errstr);
3355                 if (errstr) {
3356                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3357                             errstr, prop);
3358                 }
3359                 ws = &r->s->ws[ws_idx];
3360         } else {
3361                 ws = r->ws;
3362                 /* this should launch transients in the same ws as parent */
3363                 if (id && trans)
3364                         if ((ww = find_window(trans)) != NULL)
3365                                 if (ws->r) {
3366                                         ws = ww->ws;
3367                                         if (ww->ws->r)
3368                                                 r = ww->ws->r;
3369                                         else
3370                                                 fprintf(stderr,
3371                                                     "fix this bug mcbride\n");
3372                                         border_me = 1;
3373                                 }
3374         }
3375
3376         /* set up the window layout */
3377         win->id = id;
3378         win->ws = ws;
3379         win->s = r->s;  /* this never changes */
3380         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3381
3382         win->g.w = win->wa.width;
3383         win->g.h = win->wa.height;
3384         win->g.x = win->wa.x;
3385         win->g.y = win->wa.y;
3386
3387         /* Set window properties so we can remember this after reincarnation */
3388         if (ws_idx_atom && prop == NULL &&
3389             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3390                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3391                     ws_idx_str);
3392                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3393                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3394         }
3395         XFree(prop);
3396
3397         if (XGetClassHint(display, win->id, &win->ch)) {
3398                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3399                     win->ch.res_class, win->ch.res_name);
3400                 for (i = 0; i < quirks_length; i++){
3401                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3402                             !strcmp(win->ch.res_name, quirks[i].name)) {
3403                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3404                                     win->ch.res_class, win->ch.res_name);
3405                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3406                                         win->floating = 1;
3407                                 win->quirks = quirks[i].quirk;
3408                         }
3409                 }
3410         }
3411
3412         /* alter window position if quirky */
3413         if (win->quirks & SWM_Q_ANYWHERE) {
3414                 win->manual = 1; /* don't center the quirky windows */
3415                 bzero(&wc, sizeof wc);
3416                 mask = 0;
3417                 if (win->g.y < bar_height) {
3418                         win->g.y = wc.y = bar_height;
3419                         mask |= CWY;
3420                 }
3421                 if (win->g.w + win->g.x > WIDTH(r)) {
3422                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3423                         mask |= CWX;
3424                 }
3425                 border_me = 1;
3426         }
3427
3428         /* Reset font sizes (the bruteforce way; no default keybinding). */
3429         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3430                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3431                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3432                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3433                         fake_keypress(win, XK_KP_Add, ShiftMask);
3434         }
3435
3436         /* border me */
3437         if (border_me) {
3438                 bzero(&wc, sizeof wc);
3439                 wc.border_width = 1;
3440                 mask = CWBorderWidth;
3441                 XConfigureWindow(display, win->id, mask, &wc);
3442         }
3443
3444         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3445             PropertyChangeMask | StructureNotifyMask);
3446
3447         set_win_state(win, NormalState);
3448
3449         /* floaters need to be mapped if they are in the current workspace */
3450         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3451                 XMapRaised(display, win->id);
3452
3453         return (win);
3454 }
3455
3456 void
3457 unmanage_window(struct ws_win *win)
3458 {
3459         struct workspace        *ws;
3460         XEvent                  ev;
3461
3462         if (win == NULL)
3463                 return;
3464
3465         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3466
3467         set_win_state(win, WithdrawnState);
3468         XSync(display, True);
3469
3470         /* drain all events for this window, just in case */
3471         while (XCheckTypedWindowEvent(display, win->id, -1, &ev))
3472                 ;
3473
3474         ws = win->ws;
3475         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3476         if (win->ch.res_class)
3477                 XFree(win->ch.res_class);
3478         if (win->ch.res_name)
3479                 XFree(win->ch.res_name);
3480         free(win);
3481 }
3482
3483 void
3484 expose(XEvent *e)
3485 {
3486         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3487 }
3488
3489 void
3490 keypress(XEvent *e)
3491 {
3492         unsigned int            i;
3493         KeySym                  keysym;
3494         XKeyEvent               *ev = &e->xkey;
3495
3496         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3497
3498         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3499         for (i = 0; i < keys_length; i++)
3500                 if (keysym == keys[i].keysym
3501                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3502                    && keyfuncs[keys[i].funcid].func) {
3503                         if (keys[i].funcid == kf_spawn_custom)
3504                                 spawn_custom(
3505                                     root_to_region(ev->root),
3506                                     &(keyfuncs[keys[i].funcid].args),
3507                                     keys[i].spawn_name
3508                                     );
3509                         else
3510                                 keyfuncs[keys[i].funcid].func(
3511                                     root_to_region(ev->root),
3512                                     &(keyfuncs[keys[i].funcid].args)
3513                                     );
3514                 }
3515 }
3516
3517 void
3518 buttonpress(XEvent *e)
3519 {
3520         XButtonPressedEvent     *ev = &e->xbutton;
3521
3522         struct ws_win           *win;
3523         int                     i, action;
3524
3525         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3526
3527         action = root_click;
3528         if ((win = find_window(ev->window)) == NULL)
3529                 return;
3530         else {
3531                 focus_win(win);
3532                 action = client_click;
3533         }
3534
3535         for (i = 0; i < LENGTH(buttons); i++)
3536                 if (action == buttons[i].action && buttons[i].func &&
3537                     buttons[i].button == ev->button &&
3538                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3539                         buttons[i].func(win, &buttons[i].args);
3540 }
3541
3542 void
3543 configurerequest(XEvent *e)
3544 {
3545         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3546         struct ws_win           *win;
3547         int                     new = 0;
3548         XWindowChanges          wc;
3549
3550         if ((win = find_window(ev->window)) == NULL)
3551                 new = 1;
3552
3553         if (new) {
3554                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3555                     ev->window);
3556                 bzero(&wc, sizeof wc);
3557                 wc.x = ev->x;
3558                 wc.y = ev->y;
3559                 wc.width = ev->width;
3560                 wc.height = ev->height;
3561                 wc.border_width = ev->border_width;
3562                 wc.sibling = ev->above;
3563                 wc.stack_mode = ev->detail;
3564                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3565         } else {
3566                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3567                     ev->window);
3568                 if (win->floating) {
3569                         if (ev->value_mask & CWX)
3570                                 win->g.x = ev->x;
3571                         if (ev->value_mask & CWY)
3572                                 win->g.y = ev->y;
3573                         if (ev->value_mask & CWWidth)
3574                                 win->g.w = ev->width;
3575                         if (ev->value_mask & CWHeight)
3576                                 win->g.h = ev->height;
3577                         if (win->ws->r != NULL) {
3578                                 /* this seems to be full screen */
3579                                 if (win->g.w >= WIDTH(win->ws->r)) {
3580                                         win->g.x = 0;
3581                                         win->g.w = WIDTH(win->ws->r);
3582                                         ev->value_mask |= CWX | CWWidth;
3583                                 }
3584                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3585                                         /* kill border */
3586                                         win->g.y = 0;
3587                                         win->g.h = HEIGHT(win->ws->r);
3588                                         ev->value_mask |= CWY | CWHeight;
3589                                 }
3590                         }
3591                         if ((ev->value_mask & (CWX | CWY)) &&
3592                             !(ev->value_mask & (CWWidth | CWHeight)))
3593                                 config_win(win);
3594                         XMoveResizeWindow(display, win->id,
3595                             win->g.x, win->g.y, win->g.w, win->g.h);
3596                 } else
3597                         config_win(win);
3598         }
3599 }
3600
3601 void
3602 configurenotify(XEvent *e)
3603 {
3604         struct ws_win           *win;
3605         long                    mask;
3606
3607         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3608             e->xconfigure.window);
3609
3610         XMapWindow(display, e->xconfigure.window);
3611         win = find_window(e->xconfigure.window);
3612         if (win) {
3613                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3614                 adjust_font(win);
3615                 XMapWindow(display, win->id);
3616                 if (font_adjusted)
3617                         stack();
3618         }
3619 }
3620
3621 void
3622 destroynotify(XEvent *e)
3623 {
3624         struct ws_win           *win, *winfocus = NULL;
3625         struct workspace        *ws;
3626         struct ws_win_list      *wl;
3627
3628         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3629
3630         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3631
3632         XSync(display, True);
3633
3634         SWM_EV_PROLOGUE(display);
3635
3636         if ((win = find_window(ev->window)) != NULL) {
3637                 /* find a window to focus */
3638                 ws = win->ws;
3639                 wl = &ws->winlist;
3640
3641                 /* if we are transient give focus to parent */
3642                 if (win->transient)
3643                         winfocus = find_window(win->transient);
3644                 else if (ws->focus == win) {
3645                         /* if in max_stack try harder */
3646                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3647                                 if (win != ws->focus && win != ws->focus_prev)
3648                                         winfocus = ws->focus_prev;
3649
3650                         /* fallback and normal handling */
3651                         if (winfocus == NULL) {
3652                                 if (TAILQ_FIRST(wl) == win)
3653                                         winfocus = TAILQ_NEXT(win, entry);
3654                                 else {
3655                                         winfocus = TAILQ_PREV(ws->focus,
3656                                             ws_win_list, entry);
3657                                         if (winfocus == NULL)
3658                                                 winfocus = TAILQ_LAST(wl,
3659                                                     ws_win_list);
3660                                 }
3661                         }
3662                 }
3663                 ignore_enter = 1;
3664                 unmanage_window(win);
3665                 stack();
3666                 if (winfocus)
3667                         focus_win(winfocus);
3668                 ignore_enter = 0;
3669         }
3670
3671         SWM_EV_EPILOGUE(display);
3672 }
3673
3674 void
3675 enternotify(XEvent *e)
3676 {
3677         XCrossingEvent          *ev = &e->xcrossing;
3678         struct ws_win           *win;
3679
3680         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3681
3682         if (ignore_enter) {
3683                 /* eat event(r) to prevent autofocus */
3684                 ignore_enter = 0;
3685                 return;
3686         }
3687         /*
3688          * happens when a window is created or destroyed and the border
3689          * crosses the mouse pointer
3690          */
3691         if (QLength(display))
3692                 return;
3693
3694         if ((win = find_window(ev->window)) != NULL) {
3695                 if (win->ws->focus == win)
3696                         return;
3697                 focus_win(win);
3698         }
3699 }
3700
3701 void
3702 focusin(XEvent *e)
3703 {
3704         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3705 }
3706
3707 void
3708 focusout(XEvent *e)
3709 {
3710         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3711 }
3712
3713 void
3714 mapnotify(XEvent *e)
3715 {
3716         struct ws_win           *win;
3717         XMapEvent               *ev = &e->xmap;
3718
3719         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3720
3721         SWM_EV_PROLOGUE(display);
3722
3723         win = find_window(ev->window);
3724         if (win)
3725                 set_win_state(win, NormalState);
3726
3727         SWM_EV_EPILOGUE(display);
3728 }
3729
3730 void
3731 mappingnotify(XEvent *e)
3732 {
3733         XMappingEvent           *ev = &e->xmapping;
3734
3735         XRefreshKeyboardMapping(ev);
3736         if (ev->request == MappingKeyboard)
3737                 grabkeys();
3738 }
3739
3740 void
3741 maprequest(XEvent *e)
3742 {
3743         struct ws_win           *win;
3744         struct swm_region       *r;
3745
3746         XMapRequestEvent        *ev = &e->xmaprequest;
3747         XWindowAttributes       wa;
3748
3749         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3750             e->xmaprequest.window);
3751
3752         SWM_EV_PROLOGUE(display);
3753
3754         if (!XGetWindowAttributes(display, ev->window, &wa))
3755                 goto done;
3756         if (wa.override_redirect)
3757                 goto done;
3758
3759         manage_window(e->xmaprequest.window);
3760
3761         stack();
3762
3763         /* make new win focused */
3764         win = find_window(ev->window);
3765         r = root_to_region(win->wa.root);
3766
3767         if (win->ws == r->ws)
3768                 focus_win(win);
3769
3770 done:
3771         SWM_EV_EPILOGUE(display);
3772 }
3773
3774 void
3775 propertynotify(XEvent *e)
3776 {
3777         struct ws_win           *win;
3778         XPropertyEvent          *ev = &e->xproperty;
3779
3780         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3781             ev->window);
3782
3783         if (ev->state == PropertyDelete)
3784                 return; /* ignore */
3785         win = find_window(ev->window);
3786         if (win == NULL)
3787                 return;
3788
3789         switch (ev->atom) {
3790         case XA_WM_NORMAL_HINTS:
3791 #if 0
3792                 long            mask;
3793                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3794                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3795                 if (win->sh.flags & PMinSize) {
3796                         win->g.w = win->sh.min_width;
3797                         win->g.h = win->sh.min_height;
3798                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3799                 }
3800                 XMoveResizeWindow(display, win->id,
3801                     win->g.x, win->g.y, win->g.w, win->g.h);
3802 #endif
3803                 break;
3804         default:
3805                 break;
3806         }
3807 }
3808
3809 void
3810 unmapnotify(XEvent *e)
3811 {
3812         struct ws_win           *win, *winfocus = NULL;
3813         struct workspace        *ws;
3814
3815         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3816
3817         SWM_EV_PROLOGUE(display);
3818
3819         /* determine if we need to help unmanage this window */
3820         win = find_window(e->xunmap.window);
3821         if (win == NULL)
3822                 goto done;
3823
3824         if (getstate(e->xunmap.window) == NormalState) {
3825                 /*
3826                  * this window does not have a destroy event but but it is no
3827                  * longer visible due to the app unmapping it so unmanage it
3828                  */
3829
3830                 ws = win->ws;
3831                 /* if we are max_stack try harder to focus on something */
3832                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3833                         if (win->transient)
3834                                 winfocus = find_window(win->transient);
3835                         else if (win != ws->focus && win != ws->focus_prev)
3836                                 winfocus = ws->focus_prev;
3837                 }
3838
3839                 /* normal and fallback if haven't found anything to focus on */
3840                 if (winfocus == NULL) {
3841                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3842                         if (TAILQ_FIRST(&ws->winlist) == win)
3843                                 winfocus = TAILQ_NEXT(win, entry);
3844                         else {
3845                                 if (ws->focus)
3846                                         winfocus = TAILQ_PREV(ws->focus,
3847                                             ws_win_list, entry);
3848                                 if (winfocus == NULL)
3849                                         winfocus = TAILQ_LAST(&ws->winlist,
3850                                             ws_win_list);
3851                         }
3852                 }
3853
3854                 /* trash window and refocus */
3855                 unmanage_window(win);
3856                 ignore_enter = 1;
3857                 stack();
3858                 focus_win(winfocus);
3859                 ignore_enter = 0;
3860         }
3861
3862 done:
3863         SWM_EV_EPILOGUE(display);
3864 }
3865
3866 void
3867 visibilitynotify(XEvent *e)
3868 {
3869         int                     i;
3870         struct swm_region       *r;
3871
3872         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3873             e->xvisibility.window);
3874         if (e->xvisibility.state == VisibilityUnobscured)
3875                 for (i = 0; i < ScreenCount(display); i++)
3876                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3877                                 if (e->xvisibility.window == r->bar_window)
3878                                         bar_update();
3879 }
3880
3881 int
3882 xerror_start(Display *d, XErrorEvent *ee)
3883 {
3884         other_wm = 1;
3885         return (-1);
3886 }
3887
3888 int
3889 xerror(Display *d, XErrorEvent *ee)
3890 {
3891         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3892         return (-1);
3893 }
3894
3895 int
3896 active_wm(void)
3897 {
3898         other_wm = 0;
3899         xerrorxlib = XSetErrorHandler(xerror_start);
3900
3901         /* this causes an error if some other window manager is running */
3902         XSelectInput(display, DefaultRootWindow(display),
3903             SubstructureRedirectMask);
3904         XSync(display, False);
3905         if (other_wm)
3906                 return (1);
3907
3908         XSetErrorHandler(xerror);
3909         XSync(display, False);
3910         return (0);
3911 }
3912
3913 void
3914 new_region(struct swm_screen *s, int x, int y, int w, int h)
3915 {
3916         struct swm_region       *r, *n;
3917         struct workspace        *ws = NULL;
3918         int                     i;
3919
3920         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3921              s->idx, w, h, x, y);
3922
3923         /* remove any conflicting regions */
3924         n = TAILQ_FIRST(&s->rl);
3925         while (n) {
3926                 r = n;
3927                 n = TAILQ_NEXT(r, entry);
3928                 if (X(r) < (x + w) &&
3929                     (X(r) + WIDTH(r)) > x &&
3930                     Y(r) < (y + h) &&
3931                     (Y(r) + HEIGHT(r)) > y) {
3932                         XDestroyWindow(display, r->bar_window);
3933                         TAILQ_REMOVE(&s->rl, r, entry);
3934                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3935                 }
3936         }
3937
3938         /* search old regions for one to reuse */
3939
3940         /* size + location match */
3941         TAILQ_FOREACH(r, &s->orl, entry)
3942                 if (X(r) == x && Y(r) == y &&
3943                     HEIGHT(r) == h && WIDTH(r) == w)
3944                         break;
3945
3946         /* size match */
3947         TAILQ_FOREACH(r, &s->orl, entry)
3948                 if (HEIGHT(r) == h && WIDTH(r) == w)
3949                         break;
3950
3951         if (r != NULL) {
3952                 TAILQ_REMOVE(&s->orl, r, entry);
3953                 /* try to use old region's workspace */
3954                 if (r->ws->r == NULL)
3955                         ws = r->ws;
3956         } else
3957                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3958                         errx(1, "calloc: failed to allocate memory for screen");
3959
3960         /* if we don't have a workspace already, find one */
3961         if (ws == NULL) {
3962                 for (i = 0; i < SWM_WS_MAX; i++)
3963                         if (s->ws[i].r == NULL) {
3964                                 ws = &s->ws[i];
3965                                 break;
3966                         }
3967         }
3968
3969         if (ws == NULL)
3970                 errx(1, "no free workspaces\n");
3971
3972         X(r) = x;
3973         Y(r) = y;
3974         WIDTH(r) = w;
3975         HEIGHT(r) = h;
3976         r->s = s;
3977         r->ws = ws;
3978         ws->r = r;
3979         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3980 }
3981
3982 void
3983 scan_xrandr(int i)
3984 {
3985 #ifdef SWM_XRR_HAS_CRTC
3986         XRRCrtcInfo             *ci;
3987         XRRScreenResources      *sr;
3988         int                     c;
3989         int                     ncrtc = 0;
3990 #endif /* SWM_XRR_HAS_CRTC */
3991         struct swm_region       *r;
3992
3993
3994         if (i >= ScreenCount(display))
3995                 errx(1, "invalid screen");
3996
3997         /* remove any old regions */
3998         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3999                 r->ws->old_r = r->ws->r = NULL;
4000                 XDestroyWindow(display, r->bar_window);
4001                 TAILQ_REMOVE(&screens[i].rl, r, entry);
4002                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
4003         }
4004
4005         /* map virtual screens onto physical screens */
4006 #ifdef SWM_XRR_HAS_CRTC
4007         outputs = 0;
4008         if (xrandr_support) {
4009                 sr = XRRGetScreenResources(display, screens[i].root);
4010                 if (sr == NULL)
4011                         new_region(&screens[i], 0, 0,
4012                             DisplayWidth(display, i),
4013                             DisplayHeight(display, i));
4014                 else
4015                         ncrtc = sr->ncrtc;
4016
4017                 for (c = 0, ci = NULL; c < ncrtc; c++) {
4018                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
4019                         if (ci->noutput == 0)
4020                                 continue;
4021                         outputs++;
4022
4023                         if (ci != NULL && ci->mode == None)
4024                                 new_region(&screens[i], 0, 0,
4025                                     DisplayWidth(display, i),
4026                                     DisplayHeight(display, i));
4027                         else
4028                                 new_region(&screens[i],
4029                                     ci->x, ci->y, ci->width, ci->height);
4030                 }
4031                 if (ci)
4032                         XRRFreeCrtcInfo(ci);
4033                 XRRFreeScreenResources(sr);
4034         } else
4035 #endif /* SWM_XRR_HAS_CRTC */
4036         {
4037                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4038                     DisplayHeight(display, i));
4039         }
4040 }
4041
4042 void
4043 screenchange(XEvent *e) {
4044         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4045         struct swm_region               *r;
4046         int                             i;
4047
4048         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4049
4050         if (!XRRUpdateConfiguration(e))
4051                 return;
4052
4053         /* silly event doesn't include the screen index */
4054         for (i = 0; i < ScreenCount(display); i++)
4055                 if (screens[i].root == xe->root)
4056                         break;
4057         if (i >= ScreenCount(display))
4058                 errx(1, "screenchange: screen not found\n");
4059
4060         /* brute force for now, just re-enumerate the regions */
4061         scan_xrandr(i);
4062
4063         /* add bars to all regions */
4064         for (i = 0; i < ScreenCount(display); i++)
4065                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4066                         bar_setup(r);
4067         stack();
4068 }
4069
4070 void
4071 setup_screens(void)
4072 {
4073         Window                  d1, d2, *wins = NULL;
4074         XWindowAttributes       wa;
4075         unsigned int            no;
4076         int                     i, j, k;
4077         int                     errorbase, major, minor;
4078         struct workspace        *ws;
4079         int                     ws_idx_atom;
4080         long                    state, manage;
4081
4082         if ((screens = calloc(ScreenCount(display),
4083              sizeof(struct swm_screen))) == NULL)
4084                 errx(1, "calloc: screens");
4085
4086         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4087
4088         /* initial Xrandr setup */
4089         xrandr_support = XRRQueryExtension(display,
4090             &xrandr_eventbase, &errorbase);
4091         if (xrandr_support)
4092                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4093                         xrandr_support = 0;
4094
4095         /* map physical screens */
4096         for (i = 0; i < ScreenCount(display); i++) {
4097                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4098                 screens[i].idx = i;
4099                 TAILQ_INIT(&screens[i].rl);
4100                 TAILQ_INIT(&screens[i].orl);
4101                 screens[i].root = RootWindow(display, i);
4102
4103                 /* set default colors */
4104                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4105                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4106                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4107                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4108                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4109
4110                 /* init all workspaces */
4111                 /* XXX these should be dynamically allocated too */
4112                 for (j = 0; j < SWM_WS_MAX; j++) {
4113                         ws = &screens[i].ws[j];
4114                         ws->idx = j;
4115                         ws->restack = 1;
4116                         ws->focus = NULL;
4117                         ws->r = NULL;
4118                         ws->old_r = NULL;
4119                         TAILQ_INIT(&ws->winlist);
4120
4121                         for (k = 0; layouts[k].l_stack != NULL; k++)
4122                                 if (layouts[k].l_config != NULL)
4123                                         layouts[k].l_config(ws,
4124                                             SWM_ARG_ID_STACKINIT);
4125                         ws->cur_layout = &layouts[0];
4126                 }
4127                 /* grab existing windows (before we build the bars)*/
4128                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4129                         continue;
4130
4131                 scan_xrandr(i);
4132
4133                 if (xrandr_support)
4134                         XRRSelectInput(display, screens[i].root,
4135                             RRScreenChangeNotifyMask);
4136
4137                 /* attach windows to a region */
4138                 /* normal windows */
4139                 for (j = 0; j < no; j++) {
4140                         XGetWindowAttributes(display, wins[j], &wa);
4141                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4142                             wa.override_redirect ||
4143                             XGetTransientForHint(display, wins[j], &d1))
4144                                 continue;
4145
4146                         state = getstate(wins[j]);
4147                         manage = state == NormalState || state == IconicState;
4148                         if (wa.map_state == IsViewable || manage)
4149                                 manage_window(wins[j]);
4150                 }
4151                 /* transient windows */
4152                 for (j = 0; j < no; j++) {
4153                         if (!XGetWindowAttributes(display, wins[j], &wa))
4154                                 continue;
4155
4156                         state = getstate(wins[j]);
4157                         manage = state == NormalState || state == IconicState;
4158                         if (XGetTransientForHint(display, wins[j], &d1) &&
4159                             manage)
4160                                 manage_window(wins[j]);
4161                 }
4162                 if (wins) {
4163                         XFree(wins);
4164                         wins = NULL;
4165                 }
4166         }
4167 }
4168
4169 void
4170 setup_globals(void)
4171 {
4172         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4173             == NULL)
4174                 err(1, "setup_globals: strdup");
4175         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4176             == NULL)
4177                 err(1, "setup_globals: strdup");
4178         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4179             == NULL)
4180                 err(1, "setup_globals: strdup");
4181         if ((spawn_term[0] = strdup("xterm")) == NULL)
4182                 err(1, "setup_globals: strdup");
4183 }
4184
4185 void
4186 workaround(void)
4187 {
4188         int                     i;
4189         Atom                    netwmcheck, netwmname, utf8_string;
4190         Window                  root;
4191
4192         /* work around sun jdk bugs, code from wmname */
4193         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4194         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4195         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4196         for (i = 0; i < ScreenCount(display); i++) {
4197                 root = screens[i].root;
4198                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4199                     PropModeReplace, (unsigned char *)&root, 1);
4200                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4201                     PropModeReplace, "LG3D", strlen("LG3D"));
4202         }
4203 }
4204
4205 int
4206 main(int argc, char *argv[])
4207 {
4208         struct passwd           *pwd;
4209         struct swm_region       *r, *rr;
4210         struct ws_win           *winfocus = NULL;
4211         char                    conf[PATH_MAX], *cfile = NULL;
4212         struct stat             sb;
4213         XEvent                  e;
4214         int                     xfd, i;
4215         fd_set                  rd;
4216
4217         start_argv = argv;
4218         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4219             SWM_VERSION, cvstag);
4220         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4221                 warnx("no locale support");
4222
4223         if (!(display = XOpenDisplay(0)))
4224                 errx(1, "can not open display");
4225
4226         if (active_wm())
4227                 errx(1, "other wm running");
4228
4229         /* handle some signale */
4230         installsignal(SIGINT, "INT");
4231         installsignal(SIGHUP, "HUP");
4232         installsignal(SIGQUIT, "QUIT");
4233         installsignal(SIGTERM, "TERM");
4234         installsignal(SIGCHLD, "CHLD");
4235
4236         astate = XInternAtom(display, "WM_STATE", False);
4237         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4238         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4239
4240         /* look for local and global conf file */
4241         pwd = getpwuid(getuid());
4242         if (pwd == NULL)
4243                 errx(1, "invalid user %d", getuid());
4244
4245         setup_screens();
4246         setup_globals();
4247         setup_keys();
4248         setup_quirks();
4249         setup_spawn();
4250
4251         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4252         if (stat(conf, &sb) != -1) {
4253                 if (S_ISREG(sb.st_mode))
4254                         cfile = conf;
4255         } else {
4256                 /* try global conf file */
4257                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4258                 if (!stat(conf, &sb))
4259                         if (S_ISREG(sb.st_mode))
4260                                 cfile = conf;
4261         }
4262         if (cfile)
4263                 conf_load(cfile);
4264
4265         /* setup all bars */
4266         for (i = 0; i < ScreenCount(display); i++)
4267                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4268                         if (winfocus == NULL)
4269                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4270                         bar_setup(r);
4271                 }
4272
4273         /* set some values to work around bad programs */
4274         workaround();
4275
4276         grabkeys();
4277         stack();
4278
4279         xfd = ConnectionNumber(display);
4280         while (running) {
4281                 while (XPending(display)) {
4282                         XNextEvent(display, &e);
4283                         if (running == 0)
4284                                 goto done;
4285                         if (e.type < LASTEvent) {
4286                                 dumpevent(&e);
4287                                 if (handler[e.type])
4288                                         handler[e.type](&e);
4289                                 else
4290                                         DNPRINTF(SWM_D_EVENT,
4291                                             "win: %lu unknown event: %d\n",
4292                                             e.xany.window, e.type);
4293                         } else {
4294                                 switch (e.type - xrandr_eventbase) {
4295                                 case RRScreenChangeNotify:
4296                                         screenchange(&e);
4297                                         break;
4298                                 default:
4299                                         DNPRINTF(SWM_D_EVENT,
4300                                             "win: %lu unknown xrandr event: "
4301                                             "%d\n", e.xany.window, e.type);
4302                                         break;
4303                                 }
4304                         }
4305                 }
4306
4307                 /* if we are being restarted go focus on first window */
4308                 if (winfocus) {
4309                         rr = TAILQ_FIRST(&screens[0].rl);
4310                         /* move pointer to first screen if multi screen */
4311                         if (ScreenCount(display) > 1 || outputs > 1)
4312                                 XWarpPointer(display, None, rr->s[0].root,
4313                                     0, 0, 0, 0, rr->g.x,
4314                                     rr->g.y + bar_enabled ? bar_height : 0);
4315
4316                         focus_win(winfocus);
4317                         winfocus = NULL;
4318                         continue;
4319                 }
4320
4321                 FD_ZERO(&rd);
4322                 FD_SET(xfd, &rd);
4323                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4324                         if (errno != EINTR)
4325                                 DNPRINTF(SWM_D_MISC, "select failed");
4326                 if (running == 0)
4327                         goto done;
4328                 if (bar_alarm) {
4329                         bar_alarm = 0;
4330                         bar_update();
4331                 }
4332         }
4333 done:
4334         bar_extra_stop();
4335
4336         XCloseDisplay(display);
4337
4338         return (0);
4339 }