scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.9"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while (0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while (0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151 #define SWM_EV_PROLOGUE(x)      do { XGrabServer(x); } while (0)
 152 #define SWM_EV_EPILOGUE(x)      do { XUngrabServer(x); XFlush(x); } while (0)
 153
 154 #ifndef SWM_LIB
 155 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 156 #endif
 157
 158 char                    **start_argv;
 159 Atom                    astate;
 160 Atom                    aprot;
 161 Atom                    adelete;
 162 volatile sig_atomic_t   running = 1;
 163 int                     outputs = 0;
 164 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 165 int                     other_wm;
 166 int                     ss_enabled = 0;
 167 int                     xrandr_support;
 168 int                     xrandr_eventbase;
 169 int                     ignore_enter = 0;
 170 unsigned int            numlockmask = 0;
 171 Display                 *display;
 172
 173 int                     cycle_empty = 0;
 174 int                     cycle_visible = 0;
 175 int                     term_width = 0;
 176 int                     font_adjusted = 0;
 177 unsigned int            mod_key = MODKEY;
 178
 179 /* dialog windows */
 180 double                  dialog_ratio = .6;
 181 /* status bar */
 182 #define SWM_BAR_MAX     (256)
 183 char                    *bar_argv[] = { NULL, NULL };
 184 int                     bar_pipe[2];
 185 char                    bar_ext[SWM_BAR_MAX];
 186 char                    bar_vertext[SWM_BAR_MAX];
 187 int                     bar_version = 0;
 188 sig_atomic_t            bar_alarm = 0;
 189 int                     bar_delay = 30;
 190 int                     bar_enabled = 1;
 191 int                     bar_extra = 1;
 192 int                     bar_extra_running = 0;
 193 int                     bar_verbose = 1;
 194 int                     bar_height = 0;
 195 int                     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 void
 926 set_win_state(struct ws_win *win, long state)
 927 {
 928         long                    data[] = {state, None};
 929
 930         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 931
 932         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 933             (unsigned char *)data, 2);
 934 }
 935
 936 long
 937 getstate(Window w)
 938 {
 939         int                     format, status;
 940         long                    result = -1;
 941         unsigned char           *p = NULL;
 942         unsigned long           n, extra;
 943         Atom                    real;
 944
 945         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 946             &real, &format, &n, &extra, (unsigned char **)&p);
 947         if (status != Success)
 948                 return (-1);
 949         if (n != 0)
 950                 result = *((long *)p);
 951         XFree(p);
 952         return (result);
 953 }
 954
 955 void
 956 version(struct swm_region *r, union arg *args)
 957 {
 958         bar_version = !bar_version;
 959         if (bar_version)
 960                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 961                     SWM_VERSION, cvstag);
 962         else
 963                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 964         bar_update();
 965 }
 966
 967 void
 968 client_msg(struct ws_win *win, Atom a)
 969 {
 970         XClientMessageEvent     cm;
 971
 972         bzero(&cm, sizeof cm);
 973         cm.type = ClientMessage;
 974         cm.window = win->id;
 975         cm.message_type = aprot;
 976         cm.format = 32;
 977         cm.data.l[0] = a;
 978         cm.data.l[1] = CurrentTime;
 979         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 980 }
 981
 982 void
 983 config_win(struct ws_win *win)
 984 {
 985         XConfigureEvent         ce;
 986
 987         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 988             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 989         ce.type = ConfigureNotify;
 990         ce.display = display;
 991         ce.event = win->id;
 992         ce.window = win->id;
 993         ce.x = win->g.x;
 994         ce.y = win->g.y;
 995         ce.width = win->g.w;
 996         ce.height = win->g.h;
 997         ce.border_width = 1; /* XXX store this! */
 998         ce.above = None;
 999         ce.override_redirect = False;
1000         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1001 }
1002
1003 int
1004 count_win(struct workspace *ws, int count_transient)
1005 {
1006         struct ws_win           *win;
1007         int                     count = 0;
1008
1009         TAILQ_FOREACH(win, &ws->winlist, entry) {
1010                 if (count_transient == 0 && win->floating)
1011                         continue;
1012                 if (count_transient == 0 && win->transient)
1013                         continue;
1014                 count++;
1015         }
1016         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1017
1018         return (count);
1019 }
1020
1021 void
1022 quit(struct swm_region *r, union arg *args)
1023 {
1024         DNPRINTF(SWM_D_MISC, "quit\n");
1025         running = 0;
1026 }
1027
1028 void
1029 unmap_window(struct ws_win *win)
1030 {
1031         if (win == NULL)
1032                 return;
1033
1034         set_win_state(win, IconicState);
1035         XUnmapWindow(display, win->id);
1036 }
1037
1038 void
1039 unmap_all(void)
1040 {
1041         struct ws_win           *win;
1042         int                     i, j;
1043
1044         for (i = 0; i < ScreenCount(display); i++)
1045                 for (j = 0; j < SWM_WS_MAX; j++)
1046                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1047                                 unmap_window(win);
1048 }
1049
1050 void
1051 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1052 {
1053         XKeyEvent event;
1054
1055         event.display = display;        /* Ignored, but what the hell */
1056         event.window = win->id;
1057         event.root = win->s->root;
1058         event.subwindow = None;
1059         event.time = CurrentTime;
1060         event.x = win->g.x;
1061         event.y = win->g.y;
1062         event.x_root = 1;
1063         event.y_root = 1;
1064         event.same_screen = True;
1065         event.keycode = XKeysymToKeycode(display, keysym);
1066         event.state = modifiers;
1067
1068         event.type = KeyPress;
1069         XSendEvent(event.display, event.window, True,
1070             KeyPressMask, (XEvent *)&event);
1071
1072         event.type = KeyRelease;
1073         XSendEvent(event.display, event.window, True,
1074             KeyPressMask, (XEvent *)&event);
1075
1076 }
1077
1078 void
1079 restart(struct swm_region *r, union arg *args)
1080 {
1081         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1082
1083         /* disable alarm because the following code may not be interrupted */
1084         alarm(0);
1085         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1086                 errx(1, "can't disable alarm");
1087
1088         bar_extra_stop();
1089         bar_extra = 1;
1090         unmap_all();
1091         XCloseDisplay(display);
1092         execvp(start_argv[0], start_argv);
1093         fprintf(stderr, "execvp failed\n");
1094         perror(" failed");
1095         quit(NULL, NULL);
1096 }
1097
1098 struct swm_region *
1099 root_to_region(Window root)
1100 {
1101         struct swm_region       *r = NULL;
1102         Window                  rr, cr;
1103         int                     i, x, y, wx, wy;
1104         unsigned int            mask;
1105
1106         for (i = 0; i < ScreenCount(display); i++)
1107                 if (screens[i].root == root)
1108                         break;
1109
1110         if (XQueryPointer(display, screens[i].root,
1111             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1112                 /* choose a region based on pointer location */
1113                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1114                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1115                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1116                                 break;
1117         }
1118
1119         if (r == NULL)
1120                 r = TAILQ_FIRST(&screens[i].rl);
1121
1122         return (r);
1123 }
1124
1125 struct ws_win *
1126 find_window(Window id)
1127 {
1128         struct ws_win           *win;
1129         int                     i, j;
1130
1131         for (i = 0; i < ScreenCount(display); i++)
1132                 for (j = 0; j < SWM_WS_MAX; j++)
1133                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1134                                 if (id == win->id)
1135                                         return (win);
1136         return (NULL);
1137 }
1138
1139 void
1140 spawn(struct swm_region *r, union arg *args)
1141 {
1142         char                    *ret;
1143         int                     si;
1144
1145         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1146         /*
1147          * The double-fork construct avoids zombie processes and keeps the code
1148          * clean from stupid signal handlers.
1149          */
1150         if (fork() == 0) {
1151                 if (fork() == 0) {
1152                         if (display)
1153                                 close(ConnectionNumber(display));
1154                         setenv("LD_PRELOAD", SWM_LIB, 1);
1155                         if (asprintf(&ret, "%d", r->ws->idx)) {
1156                                 setenv("_SWM_WS", ret, 1);
1157                                 free(ret);
1158                         }
1159                         if (asprintf(&ret, "%d", getpid())) {
1160                                 setenv("_SWM_PID", ret, 1);
1161                                 free(ret);
1162                         }
1163                         setsid();
1164                         /* kill stdin, mplayer, ssh-add etc. need that */
1165                         si = open("/dev/null", O_RDONLY, 0);
1166                         if (si == -1)
1167                                 err(1, "open /dev/null");
1168                         if (dup2(si, 0) == -1)
1169                                 err(1, "dup2 /dev/null");
1170                         execvp(args->argv[0], args->argv);
1171                         fprintf(stderr, "execvp failed\n");
1172                         perror(" failed");
1173                 }
1174                 exit(0);
1175         }
1176         wait(0);
1177 }
1178
1179 void
1180 spawnterm(struct swm_region *r, union arg *args)
1181 {
1182         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1183
1184         if (term_width)
1185                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1186         spawn(r, args);
1187 }
1188
1189 void
1190 unfocus_win(struct ws_win *win)
1191 {
1192         if (win == NULL)
1193                 return;
1194
1195         if (win->ws->r == NULL)
1196                 return;
1197
1198         if (win->ws->focus == win) {
1199                 win->ws->focus = NULL;
1200                 win->ws->focus_prev = win;
1201         }
1202
1203         grabbuttons(win, 0);
1204         XSetWindowBorder(display, win->id,
1205             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1206 }
1207
1208 void
1209 unfocus_all(void)
1210 {
1211         struct ws_win           *win;
1212         int                     i, j;
1213
1214         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1215
1216         for (i = 0; i < ScreenCount(display); i++)
1217                 for (j = 0; j < SWM_WS_MAX; j++)
1218                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1219                                 unfocus_win(win);
1220         XSync(display, False);
1221 }
1222
1223 void
1224 focus_win(struct ws_win *win)
1225 {
1226         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1227
1228         if (win == NULL)
1229                 return;
1230
1231         /* use big hammer to make sure it works under all use cases */
1232         unfocus_all();
1233         win->ws->focus = win;
1234
1235         if (win->ws->r != NULL) {
1236                 XSetWindowBorder(display, win->id,
1237                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1238                 grabbuttons(win, 1);
1239                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1240                         XMapRaised(display, win->id);
1241                 XSetInputFocus(display, win->id,
1242                     RevertToPointerRoot, CurrentTime);
1243         }
1244 }
1245
1246 void
1247 switchws(struct swm_region *r, union arg *args)
1248 {
1249         int                     wsid = args->id;
1250         struct swm_region       *this_r, *other_r;
1251         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1252         struct workspace        *new_ws, *old_ws;
1253
1254         this_r = r;
1255         old_ws = this_r->ws;
1256         new_ws = &this_r->s->ws[wsid];
1257
1258         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1259             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1260             old_ws->idx, wsid);
1261
1262         if (new_ws == old_ws)
1263                 return;
1264
1265         /* get focus window */
1266         if (new_ws->focus)
1267                 winfocus = new_ws->focus;
1268         else if (new_ws->focus_prev)
1269                 winfocus = new_ws->focus_prev;
1270         else
1271                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1272
1273         other_r = new_ws->r;
1274         if (other_r == NULL) {
1275                 /* if the other workspace is hidden, switch windows */
1276                 if (old_ws->r != NULL)
1277                         old_ws->old_r = old_ws->r;
1278                 old_ws->r = NULL;
1279                 old_ws->restack = 1;
1280
1281                 /*
1282                  * Map new windows first if they were here before
1283                  * to minimize ugly blinking.
1284                  */
1285                 if (new_ws->old_r == this_r)
1286                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1287                                 if (!(win->ws->cur_layout->flags &
1288                                     SWM_L_MAPONFOCUS))
1289                                         XMapRaised(display, win->id);
1290
1291                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1292                         unmap_window(win);
1293         } else {
1294                 other_r->ws = old_ws;
1295                 old_ws->r = other_r;
1296         }
1297         this_r->ws = new_ws;
1298         new_ws->r = this_r;
1299
1300         ignore_enter = 1;
1301         stack();
1302         if (winfocus) {
1303                 /* make sure we see the parent window */
1304                 if (winfocus->transient) {
1305                         parent = find_window(winfocus->transient);
1306                         if (parent)
1307                                 focus_win(parent);
1308                 }
1309
1310                 focus_win(winfocus);
1311         }
1312         ignore_enter = 0;
1313         bar_update();
1314 }
1315
1316 void
1317 cyclews(struct swm_region *r, union arg *args)
1318 {
1319         union                   arg a;
1320         struct swm_screen       *s = r->s;
1321
1322         DNPRINTF(SWM_D_WS, "cyclews id %d "
1323             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1324             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1325
1326         a.id = r->ws->idx;
1327         do {
1328                 switch (args->id) {
1329                 case SWM_ARG_ID_CYCLEWS_UP:
1330                         if (a.id < SWM_WS_MAX - 1)
1331                                 a.id++;
1332                         else
1333                                 a.id = 0;
1334                         break;
1335                 case SWM_ARG_ID_CYCLEWS_DOWN:
1336                         if (a.id > 0)
1337                                 a.id--;
1338                         else
1339                                 a.id = SWM_WS_MAX - 1;
1340                         break;
1341                 default:
1342                         return;
1343                 };
1344
1345                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1346                         continue;
1347                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1348                         continue;
1349
1350                 switchws(r, &a);
1351         } while (a.id != r->ws->idx);
1352 }
1353
1354 void
1355 cyclescr(struct swm_region *r, union arg *args)
1356 {
1357         struct swm_region       *rr = NULL;
1358         struct workspace        *ws = NULL;
1359         struct ws_win           *winfocus = NULL;
1360         int                     i, x, y;
1361
1362         /* do nothing if we don't have more than one screen */
1363         if (!(ScreenCount(display) > 1 || outputs > 1))
1364                 return;
1365
1366         i = r->s->idx;
1367         switch (args->id) {
1368         case SWM_ARG_ID_CYCLESC_UP:
1369                 rr = TAILQ_NEXT(r, entry);
1370                 if (rr == NULL)
1371                         rr = TAILQ_FIRST(&screens[i].rl);
1372                 break;
1373         case SWM_ARG_ID_CYCLESC_DOWN:
1374                 rr = TAILQ_PREV(r, swm_region_list, entry);
1375                 if (rr == NULL)
1376                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1377                 break;
1378         default:
1379                 return;
1380         };
1381         if (rr == NULL)
1382                 return;
1383
1384         ws = rr->ws;
1385         winfocus = ws->focus;
1386         if (winfocus == NULL)
1387                 winfocus = ws->focus_prev;
1388         if (winfocus) {
1389                 /* use window coordinates */
1390                 x = winfocus->g.x + 1;
1391                 y = winfocus->g.y + 1;
1392         } else {
1393                 /* use region coordinates */
1394                 x = rr->g.x + 1;
1395                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1396         }
1397
1398         unfocus_all();
1399         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1400         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1401
1402         focus_win(winfocus);
1403 }
1404
1405 void
1406 swapwin(struct swm_region *r, union arg *args)
1407 {
1408         struct ws_win           *target, *source;
1409         struct ws_win           *cur_focus;
1410         struct ws_win_list      *wl;
1411
1412
1413         DNPRINTF(SWM_D_WS, "swapwin id %d "
1414             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1415             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1416
1417         cur_focus = r->ws->focus;
1418         if (cur_focus == NULL)
1419                 return;
1420
1421         source = cur_focus;
1422         wl = &source->ws->winlist;
1423
1424         switch (args->id) {
1425         case SWM_ARG_ID_SWAPPREV:
1426                 target = TAILQ_PREV(source, ws_win_list, entry);
1427                 TAILQ_REMOVE(wl, cur_focus, entry);
1428                 if (target == NULL)
1429                         TAILQ_INSERT_TAIL(wl, source, entry);
1430                 else
1431                         TAILQ_INSERT_BEFORE(target, source, entry);
1432                 break;
1433         case SWM_ARG_ID_SWAPNEXT:
1434                 target = TAILQ_NEXT(source, entry);
1435                 TAILQ_REMOVE(wl, source, entry);
1436                 if (target == NULL)
1437                         TAILQ_INSERT_HEAD(wl, source, entry);
1438                 else
1439                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1440                 break;
1441         case SWM_ARG_ID_SWAPMAIN:
1442                 target = TAILQ_FIRST(wl);
1443                 if (target == source) {
1444                         if (source->ws->focus_prev != NULL &&
1445                             source->ws->focus_prev != target)
1446
1447                                 source = source->ws->focus_prev;
1448                         else
1449                                 return;
1450                 }
1451                 source->ws->focus_prev = target;
1452                 TAILQ_REMOVE(wl, target, entry);
1453                 TAILQ_INSERT_BEFORE(source, target, entry);
1454                 TAILQ_REMOVE(wl, source, entry);
1455                 TAILQ_INSERT_HEAD(wl, source, entry);
1456                 break;
1457         default:
1458                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1459                 return;
1460         }
1461
1462         ignore_enter = 1;
1463         stack();
1464 }
1465
1466 void
1467 focus(struct swm_region *r, union arg *args)
1468 {
1469         struct ws_win           *winfocus, *winlostfocus;
1470         struct ws_win_list      *wl;
1471         struct ws_win           *cur_focus;
1472
1473         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1474
1475         cur_focus = r->ws->focus;
1476         if (cur_focus == NULL)
1477                 return;
1478
1479         wl = &cur_focus->ws->winlist;
1480
1481         winlostfocus = cur_focus;
1482
1483         switch (args->id) {
1484         case SWM_ARG_ID_FOCUSPREV:
1485                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1486                 if (winfocus == NULL)
1487                         winfocus = TAILQ_LAST(wl, ws_win_list);
1488                 break;
1489
1490         case SWM_ARG_ID_FOCUSNEXT:
1491                 winfocus = TAILQ_NEXT(cur_focus, entry);
1492                 if (winfocus == NULL)
1493                         winfocus = TAILQ_FIRST(wl);
1494                 break;
1495
1496         case SWM_ARG_ID_FOCUSMAIN:
1497                 winfocus = TAILQ_FIRST(wl);
1498                 if (winfocus == cur_focus)
1499                         winfocus = cur_focus->ws->focus_prev;
1500                 if (winfocus == NULL)
1501                         return;
1502                 break;
1503
1504         default:
1505                 return;
1506         }
1507
1508         if (winfocus == winlostfocus || winfocus == NULL)
1509                 return;
1510
1511         focus_win(winfocus);
1512 }
1513
1514 void
1515 cycle_layout(struct swm_region *r, union arg *args)
1516 {
1517         struct workspace        *ws = r->ws;
1518         struct ws_win           *winfocus, *parent = NULL;
1519
1520         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1521
1522         winfocus = ws->focus;
1523
1524         ws->cur_layout++;
1525         if (ws->cur_layout->l_stack == NULL)
1526                 ws->cur_layout = &layouts[0];
1527
1528         ignore_enter = 1;
1529         stack();
1530         /* make sure we see the parent window */
1531         if (winfocus) {
1532                 if (winfocus->transient)
1533                         parent = find_window(winfocus->transient);
1534                 if (parent)
1535                         focus_win(parent);
1536                 focus_win(winfocus);
1537         }
1538         ignore_enter = 0;
1539 }
1540
1541 void
1542 stack_config(struct swm_region *r, union arg *args)
1543 {
1544         struct workspace        *ws = r->ws;
1545
1546         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1547             args->id, ws->idx);
1548
1549         if (ws->cur_layout->l_config != NULL)
1550                 ws->cur_layout->l_config(ws, args->id);
1551
1552         if (args->id != SWM_ARG_ID_STACKINIT);
1553                 stack();
1554 }
1555
1556 void
1557 stack(void) {
1558         struct swm_geometry     g;
1559         struct swm_region       *r;
1560         int                     i, j;
1561
1562         DNPRINTF(SWM_D_STACK, "stack\n");
1563
1564         for (i = 0; i < ScreenCount(display); i++) {
1565                 j = 0;
1566                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1567                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1568                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1569
1570                         /* start with screen geometry, adjust for bar */
1571                         g = r->g;
1572                         g.w -= 2;
1573                         g.h -= 2;
1574                         if (bar_enabled) {
1575                                 g.y += bar_height;
1576                                 g.h -= bar_height;
1577                         }
1578
1579                         r->ws->restack = 0;
1580                         r->ws->cur_layout->l_stack(r->ws, &g);
1581                 }
1582         }
1583         if (font_adjusted)
1584                 font_adjusted--;
1585 }
1586
1587 void
1588 stack_floater(struct ws_win *win, struct swm_region *r)
1589 {
1590         unsigned int            mask;
1591         XWindowChanges          wc;
1592
1593         if (win == NULL)
1594                 return;
1595
1596         bzero(&wc, sizeof wc);
1597         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1598         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1599             (win->g.h == HEIGHT(r)))
1600                 wc.border_width = 0;
1601         else
1602                 wc.border_width = 1;
1603         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1604                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1605                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1606         }
1607         wc.width = win->g.w;
1608         wc.height = win->g.h;
1609         if (win->manual) {
1610                 wc.x = win->g.x;
1611                 wc.y = win->g.y;
1612         } else {
1613                 wc.x = (WIDTH(r) - win->g.w) / 2;
1614                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1615         }
1616
1617         /* adjust for region */
1618         wc.x += r->g.x;
1619         wc.y += r->g.y;
1620
1621         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1622             win->id, wc.x, wc.y, wc.width, wc.height);
1623
1624         XConfigureWindow(display, win->id, mask, &wc);
1625 }
1626
1627 /*
1628  * Send keystrokes to terminal to decrease/increase the font size as the
1629  * window size changes.
1630  */
1631 void
1632 adjust_font(struct ws_win *win)
1633 {
1634         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1635             win->floating || win->transient)
1636                 return;
1637
1638         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1639             win->g.w / win->sh.width_inc < term_width &&
1640             win->font_steps < SWM_MAX_FONT_STEPS) {
1641                 win->font_size_boundary[win->font_steps] =
1642                     (win->sh.width_inc * term_width) + win->sh.base_width;
1643                 win->font_steps++;
1644                 font_adjusted++;
1645                 win->last_inc = win->sh.width_inc;
1646                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1647         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1648             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1649                 win->font_steps--;
1650                 font_adjusted++;
1651                 win->last_inc = win->sh.width_inc;
1652                 fake_keypress(win, XK_KP_Add, ShiftMask);
1653         }
1654 }
1655
1656 #define SWAPXY(g)       do {                            \
1657         int tmp;                                        \
1658         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1659         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1660 } while (0)
1661 void
1662 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1663 {
1664         XWindowChanges          wc;
1665         struct swm_geometry     win_g, r_g = *g;
1666         struct ws_win           *win;
1667         int                     i, j, s, stacks;
1668         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1669         int                     hrh, extra = 0, h_slice, last_h = 0;
1670         int                     split, colno, winno, mwin, msize, mscale;
1671         int                     remain, missing, v_slice;
1672         unsigned int            mask;
1673
1674         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1675             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1676
1677         winno = count_win(ws, 0);
1678         if (winno == 0 && count_win(ws, 1) == 0)
1679                 return;
1680
1681         TAILQ_FOREACH(win, &ws->winlist, entry)
1682                 if (win->transient == 0 && win->floating == 0)
1683                         break;
1684
1685         if (win == NULL)
1686                 goto notiles;
1687
1688         if (rot) {
1689                 w_inc = win->sh.width_inc;
1690                 w_base = win->sh.base_width;
1691                 mwin = ws->l_state.horizontal_mwin;
1692                 mscale = ws->l_state.horizontal_msize;
1693                 stacks = ws->l_state.horizontal_stacks;
1694                 SWAPXY(&r_g);
1695         } else {
1696                 w_inc = win->sh.height_inc;
1697                 w_base = win->sh.base_height;
1698                 mwin = ws->l_state.vertical_mwin;
1699                 mscale = ws->l_state.vertical_msize;
1700                 stacks = ws->l_state.vertical_stacks;
1701         }
1702         win_g = r_g;
1703
1704         if (stacks > winno - mwin)
1705                 stacks = winno - mwin;
1706         if (stacks < 1)
1707                 stacks = 1;
1708
1709         h_slice = r_g.h / SWM_H_SLICE;
1710         if (mwin && winno > mwin) {
1711                 v_slice = r_g.w / SWM_V_SLICE;
1712
1713                 split = mwin;
1714                 colno = split;
1715                 win_g.w = v_slice * mscale;
1716
1717                 if (w_inc > 1 && w_inc < v_slice) {
1718                         /* adjust for window's requested size increment */
1719                         remain = (win_g.w - w_base) % w_inc;
1720                         missing = w_inc - remain;
1721                         win_g.w -= remain;
1722                         extra += remain;
1723                 }
1724
1725                 msize = win_g.w;
1726                 if (flip)
1727                         win_g.x += r_g.w - msize;
1728         } else {
1729                 msize = -2;
1730                 colno = split = winno / stacks;
1731                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1732         }
1733         hrh = r_g.h / colno;
1734         extra = r_g.h - (colno * hrh);
1735         win_g.h = hrh - 2;
1736
1737         /*  stack all the tiled windows */
1738         i = j = 0, s = stacks;
1739         TAILQ_FOREACH(win, &ws->winlist, entry) {
1740                 if (win->transient != 0 || win->floating != 0)
1741                         continue;
1742
1743                 if (split && i == split) {
1744                         colno = (winno - mwin) / stacks;
1745                         if (s <= (winno - mwin) % stacks)
1746                                 colno++;
1747                         split = split + colno;
1748                         hrh = (r_g.h / colno);
1749                         extra = r_g.h - (colno * hrh);
1750                         if (flip)
1751                                 win_g.x = r_g.x;
1752                         else
1753                                 win_g.x += win_g.w + 2;
1754                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1755                         if (s == 1)
1756                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1757                                     stacks;
1758                         s--;
1759                         j = 0;
1760                 }
1761                 win_g.h = hrh - 2;
1762                 if (rot) {
1763                         h_inc = win->sh.width_inc;
1764                         h_base = win->sh.base_width;
1765                 } else {
1766                         h_inc = win->sh.height_inc;
1767                         h_base = win->sh.base_height;
1768                 }
1769                 if (j == colno - 1) {
1770                         win_g.h = hrh + extra;
1771                 } else if (h_inc > 1 && h_inc < h_slice) {
1772                         /* adjust for window's requested size increment */
1773                         remain = (win_g.h - h_base) % h_inc;
1774                         missing = h_inc - remain;
1775
1776                         if (missing <= extra || j == 0) {
1777                                 extra -= missing;
1778                                 win_g.h += missing;
1779                         } else {
1780                                 win_g.h -= remain;
1781                                 extra += remain;
1782                         }
1783                 }
1784
1785                 if (j == 0)
1786                         win_g.y = r_g.y;
1787                 else
1788                         win_g.y += last_h + 2;
1789
1790                 bzero(&wc, sizeof wc);
1791                 wc.border_width = 1;
1792                 if (rot) {
1793                         win->g.x = wc.x = win_g.y;
1794                         win->g.y = wc.y = win_g.x;
1795                         win->g.w = wc.width = win_g.h;
1796                         win->g.h = wc.height = win_g.w;
1797                 } else {
1798                         win->g.x = wc.x = win_g.x;
1799                         win->g.y = wc.y = win_g.y;
1800                         win->g.w = wc.width = win_g.w;
1801                         win->g.h = wc.height = win_g.h;
1802                 }
1803                 adjust_font(win);
1804                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1805                 XConfigureWindow(display, win->id, mask, &wc);
1806                 XMapRaised(display, win->id);
1807
1808                 last_h = win_g.h;
1809                 i++;
1810                 j++;
1811         }
1812
1813  notiles:
1814         /* now, stack all the floaters and transients */
1815         TAILQ_FOREACH(win, &ws->winlist, entry) {
1816                 if (win->transient == 0 && win->floating == 0)
1817                         continue;
1818
1819                 stack_floater(win, ws->r);
1820                 XMapRaised(display, win->id);
1821         }
1822 }
1823
1824 void
1825 vertical_config(struct workspace *ws, int id)
1826 {
1827         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1828
1829         switch (id) {
1830         case SWM_ARG_ID_STACKRESET:
1831         case SWM_ARG_ID_STACKINIT:
1832                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1833                 ws->l_state.vertical_mwin = 1;
1834                 ws->l_state.vertical_stacks = 1;
1835                 break;
1836         case SWM_ARG_ID_MASTERSHRINK:
1837                 if (ws->l_state.vertical_msize > 1)
1838                         ws->l_state.vertical_msize--;
1839                 break;
1840         case SWM_ARG_ID_MASTERGROW:
1841                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1842                         ws->l_state.vertical_msize++;
1843                 break;
1844         case SWM_ARG_ID_MASTERADD:
1845                 ws->l_state.vertical_mwin++;
1846                 break;
1847         case SWM_ARG_ID_MASTERDEL:
1848                 if (ws->l_state.vertical_mwin > 0)
1849                         ws->l_state.vertical_mwin--;
1850                 break;
1851         case SWM_ARG_ID_STACKINC:
1852                 ws->l_state.vertical_stacks++;
1853                 break;
1854         case SWM_ARG_ID_STACKDEC:
1855                 if (ws->l_state.vertical_stacks > 1)
1856                         ws->l_state.vertical_stacks--;
1857                 break;
1858         default:
1859                 return;
1860         }
1861 }
1862
1863 void
1864 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1865 {
1866         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1867
1868         stack_master(ws, g, 0, 0);
1869 }
1870
1871 void
1872 horizontal_config(struct workspace *ws, int id)
1873 {
1874         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1875
1876         switch (id) {
1877         case SWM_ARG_ID_STACKRESET:
1878         case SWM_ARG_ID_STACKINIT:
1879                 ws->l_state.horizontal_mwin = 1;
1880                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1881                 ws->l_state.horizontal_stacks = 1;
1882                 break;
1883         case SWM_ARG_ID_MASTERSHRINK:
1884                 if (ws->l_state.horizontal_msize > 1)
1885                         ws->l_state.horizontal_msize--;
1886                 break;
1887         case SWM_ARG_ID_MASTERGROW:
1888                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1889                         ws->l_state.horizontal_msize++;
1890                 break;
1891         case SWM_ARG_ID_MASTERADD:
1892                 ws->l_state.horizontal_mwin++;
1893                 break;
1894         case SWM_ARG_ID_MASTERDEL:
1895                 if (ws->l_state.horizontal_mwin > 0)
1896                         ws->l_state.horizontal_mwin--;
1897                 break;
1898         case SWM_ARG_ID_STACKINC:
1899                 ws->l_state.horizontal_stacks++;
1900                 break;
1901         case SWM_ARG_ID_STACKDEC:
1902                 if (ws->l_state.horizontal_stacks > 1)
1903                         ws->l_state.horizontal_stacks--;
1904                 break;
1905         default:
1906                 return;
1907         }
1908 }
1909
1910 void
1911 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1912 {
1913         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1914
1915         stack_master(ws, g, 1, 0);
1916 }
1917
1918 /* fullscreen view */
1919 void
1920 max_stack(struct workspace *ws, struct swm_geometry *g)
1921 {
1922         XWindowChanges          wc;
1923         struct swm_geometry     gg = *g;
1924         struct ws_win           *win, *wintrans = NULL;
1925         unsigned int            mask;
1926         int                     winno;
1927
1928         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1929
1930         if (ws == NULL)
1931                 return;
1932
1933         winno = count_win(ws, 0);
1934         if (winno == 0 && count_win(ws, 1) == 0)
1935                 return;
1936
1937         TAILQ_FOREACH(win, &ws->winlist, entry) {
1938                 if (win->transient != 0) {
1939                         wintrans = win;
1940                 } else {
1941                         bzero(&wc, sizeof wc);
1942                         wc.border_width = 1;
1943                         win->g.x = wc.x = gg.x;
1944                         win->g.y = wc.y = gg.y;
1945                         win->g.w = wc.width = gg.w;
1946                         win->g.h = wc.height = gg.h;
1947                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1948                         XConfigureWindow(display, win->id, mask, &wc);
1949
1950                         /* unmap only if we don't have multi screen */
1951                         if (win != ws->focus)
1952                                 if (!(ScreenCount(display) > 1 || outputs > 1))
1953                                         unmap_window(win);
1954                 }
1955         }
1956
1957         /* put the last transient on top */
1958         if (wintrans) {
1959                 stack_floater(wintrans, ws->r);
1960                 focus_win(wintrans); /* override */
1961         }
1962 }
1963
1964 void
1965 send_to_ws(struct swm_region *r, union arg *args)
1966 {
1967         int                     wsid = args->id;
1968         struct ws_win           *win = win, *winfocus = NULL;
1969         struct workspace        *ws, *nws;
1970         Atom                    ws_idx_atom = 0;
1971         unsigned char           ws_idx_str[SWM_PROPLEN];
1972
1973         if (r && r->ws)
1974                 win = r->ws->focus;
1975         else
1976                 return;
1977         if (win == NULL)
1978                 return;
1979
1980         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1981
1982         ws = win->ws;
1983         nws = &win->s->ws[wsid];
1984
1985         /* find a window to focus */
1986         winfocus = TAILQ_PREV(win, ws_win_list, entry);
1987         if (TAILQ_FIRST(&ws->winlist) == win)
1988                 winfocus = TAILQ_NEXT(win, entry);
1989         else {
1990                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
1991                 if (winfocus == NULL)
1992                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
1993         }
1994         /* out of windows in ws so focus on nws instead if we multi screen */
1995         if (winfocus == NULL)
1996                 if (ScreenCount(display) > 1 || outputs > 1)
1997                         winfocus = win;
1998
1999         unmap_window(win);
2000         TAILQ_REMOVE(&ws->winlist, win, entry);
2001         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2002         win->ws = nws;
2003
2004         /* Try to update the window's workspace property */
2005         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2006         if (ws_idx_atom &&
2007             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2008                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2009                     ws_idx_str);
2010                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2011                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2012         }
2013
2014         if (count_win(nws, 1) == 1)
2015                 nws->focus = win;
2016         ws->restack = 1;
2017         nws->restack = 1;
2018
2019         stack();
2020         if (winfocus)
2021                 focus_win(winfocus);
2022 }
2023
2024 void
2025 wkill(struct swm_region *r, union arg *args)
2026 {
2027         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2028
2029         if(r->ws->focus == NULL)
2030                 return;
2031
2032         if (args->id == SWM_ARG_ID_KILLWINDOW)
2033                 XKillClient(display, r->ws->focus->id);
2034         else
2035                 if (r->ws->focus->can_delete)
2036                         client_msg(r->ws->focus, adelete);
2037 }
2038
2039 void
2040 floating_toggle(struct swm_region *r, union arg *args)
2041 {
2042         struct ws_win   *win = r->ws->focus;
2043
2044         if (win == NULL)
2045                 return;
2046
2047         win->floating = !win->floating;
2048         win->manual = 0;
2049         stack();
2050         focus_win(win);
2051 }
2052
2053 void
2054 resize_window(struct ws_win *win, int center)
2055 {
2056         unsigned int            mask;
2057         XWindowChanges          wc;
2058         struct swm_region       *r;
2059
2060         r = root_to_region(win->wa.root);
2061         bzero(&wc, sizeof wc);
2062         mask = CWBorderWidth | CWWidth | CWHeight;
2063         wc.border_width = 1;
2064         wc.width = win->g.w;
2065         wc.height = win->g.h;
2066         if (center == SWM_ARG_ID_CENTER) {
2067                 wc.x = (WIDTH(r) - win->g.w) / 2;
2068                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2069                 mask |= CWX | CWY;
2070         }
2071
2072         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2073             win->id, wc.x, wc.y, wc.width, wc.height);
2074
2075         XConfigureWindow(display, win->id, mask, &wc);
2076         config_win(win);
2077 }
2078
2079 void
2080 resize(struct ws_win *win, union arg *args)
2081 {
2082         XEvent                  ev;
2083         Time                    time = 0;
2084
2085         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2086             win->id, win->floating, win->transient);
2087
2088         if (!(win->transient != 0 || win->floating != 0))
2089                 return;
2090
2091         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2092             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2093                 return;
2094         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2095         do {
2096                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2097                     SubstructureRedirectMask, &ev);
2098                 switch(ev.type) {
2099                 case ConfigureRequest:
2100                 case Expose:
2101                 case MapRequest:
2102                         handler[ev.type](&ev);
2103                         break;
2104                 case MotionNotify:
2105                         if (ev.xmotion.x <= 1)
2106                                 ev.xmotion.x = 1;
2107                         if (ev.xmotion.y <= 1)
2108                                 ev.xmotion.y = 1;
2109                         win->g.w = ev.xmotion.x;
2110                         win->g.h = ev.xmotion.y;
2111
2112                         /* not free, don't sync more than 60 times / second */
2113                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2114                                 time = ev.xmotion.time;
2115                                 XSync(display, False);
2116                                 resize_window(win, args->id);
2117                         }
2118                         break;
2119                 }
2120         } while (ev.type != ButtonRelease);
2121         if (time) {
2122                 XSync(display, False);
2123                 resize_window(win, args->id);
2124         }
2125         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2126             win->g.h - 1);
2127         XUngrabPointer(display, CurrentTime);
2128
2129         /* drain events */
2130         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2131 }
2132
2133 void
2134 move_window(struct ws_win *win)
2135 {
2136         unsigned int            mask;
2137         XWindowChanges          wc;
2138         struct swm_region       *r;
2139
2140         r = root_to_region(win->wa.root);
2141         bzero(&wc, sizeof wc);
2142         mask = CWX | CWY;
2143         wc.x = win->g.x;
2144         wc.y = win->g.y;
2145
2146         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2147             win->id, wc.x, wc.y, wc.width, wc.height);
2148
2149         XConfigureWindow(display, win->id, mask, &wc);
2150         config_win(win);
2151 }
2152
2153 void
2154 move(struct ws_win *win, union arg *args)
2155 {
2156         XEvent                  ev;
2157         Time                    time = 0;
2158         int                     restack = 0;
2159
2160         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2161             win->id, win->floating, win->transient);
2162
2163         if (win->floating == 0) {
2164                 win->floating = 1;
2165                 win->manual = 1;
2166                 restack = 1;
2167         }
2168
2169         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2170             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2171                 return;
2172         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2173         do {
2174                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2175                     SubstructureRedirectMask, &ev);
2176                 switch(ev.type) {
2177                 case ConfigureRequest:
2178                 case Expose:
2179                 case MapRequest:
2180                         handler[ev.type](&ev);
2181                         break;
2182                 case MotionNotify:
2183                         win->g.x = ev.xmotion.x_root;
2184                         win->g.y = ev.xmotion.y_root;
2185
2186                         /* not free, don't sync more than 60 times / second */
2187                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2188                                 time = ev.xmotion.time;
2189                                 XSync(display, False);
2190                                 move_window(win);
2191                         }
2192                         break;
2193                 }
2194         } while (ev.type != ButtonRelease);
2195         if (time) {
2196                 XSync(display, False);
2197                 move_window(win);
2198         }
2199         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2200         XUngrabPointer(display, CurrentTime);
2201         if (restack)
2202                 stack();
2203
2204         /* drain events */
2205         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2206 }
2207
2208 /* key definitions */
2209 void
2210 dummykeyfunc(struct swm_region *r, union arg *args)
2211 {
2212 };
2213
2214 void
2215 legacyfunc(struct swm_region *r, union arg *args)
2216 {
2217 };
2218
2219 struct keyfunc {
2220         char                    name[SWM_FUNCNAME_LEN];
2221         void                    (*func)(struct swm_region *r, union arg *);
2222         union arg               args;
2223 } keyfuncs[kf_invalid + 1] = {
2224         /* name                 function        argument */
2225         { "cycle_layout",       cycle_layout,   {0} },
2226         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2227         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2228         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2229         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2230         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2231         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2232         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2233         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2234         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2235         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2236         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2237         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2238         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2239         { "spawn_menu",         legacyfunc,     {0} },
2240         { "quit",               quit,           {0} },
2241         { "restart",            restart,        {0} },
2242         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2243         { "ws_1",               switchws,       {.id = 0} },
2244         { "ws_2",               switchws,       {.id = 1} },
2245         { "ws_3",               switchws,       {.id = 2} },
2246         { "ws_4",               switchws,       {.id = 3} },
2247         { "ws_5",               switchws,       {.id = 4} },
2248         { "ws_6",               switchws,       {.id = 5} },
2249         { "ws_7",               switchws,       {.id = 6} },
2250         { "ws_8",               switchws,       {.id = 7} },
2251         { "ws_9",               switchws,       {.id = 8} },
2252         { "ws_10",              switchws,       {.id = 9} },
2253         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2254         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2255         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2256         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2257         { "mvws_1",             send_to_ws,     {.id = 0} },
2258         { "mvws_2",             send_to_ws,     {.id = 1} },
2259         { "mvws_3",             send_to_ws,     {.id = 2} },
2260         { "mvws_4",             send_to_ws,     {.id = 3} },
2261         { "mvws_5",             send_to_ws,     {.id = 4} },
2262         { "mvws_6",             send_to_ws,     {.id = 5} },
2263         { "mvws_7",             send_to_ws,     {.id = 6} },
2264         { "mvws_8",             send_to_ws,     {.id = 7} },
2265         { "mvws_9",             send_to_ws,     {.id = 8} },
2266         { "mvws_10",            send_to_ws,     {.id = 9} },
2267         { "bar_toggle",         bar_toggle,     {0} },
2268         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2269         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2270         { "screenshot_all",     legacyfunc,     {0} },
2271         { "screenshot_wind",    legacyfunc,     {0} },
2272         { "float_toggle",       floating_toggle,{0} },
2273         { "version",            version,        {0} },
2274         { "spawn_lock",         legacyfunc,     {0} },
2275         { "spawn_initscr",      legacyfunc,     {0} },
2276         { "spawn_custom",       dummykeyfunc,   {0} },
2277         { "invalid key func",   NULL,           {0} },
2278 };
2279 struct key {
2280         unsigned int            mod;
2281         KeySym                  keysym;
2282         enum keyfuncid          funcid;
2283         char                    *spawn_name;
2284 };
2285 int                             keys_size = 0, keys_length = 0;
2286 struct key                      *keys = NULL;
2287
2288 /* mouse */
2289 enum { client_click, root_click };
2290 struct button {
2291         unsigned int            action;
2292         unsigned int            mask;
2293         unsigned int            button;
2294         void                    (*func)(struct ws_win *, union arg *);
2295         union arg               args;
2296 } buttons[] = {
2297           /* action     key             mouse button    func    args */
2298         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2299         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2300         { client_click, MODKEY,         Button1,        move,   {0} },
2301 };
2302
2303 void
2304 update_modkey(unsigned int mod)
2305 {
2306         int                     i;
2307
2308         mod_key = mod;
2309         for (i = 0; i < keys_length; i++)
2310                 if (keys[i].mod & ShiftMask)
2311                         keys[i].mod = mod | ShiftMask;
2312                 else
2313                         keys[i].mod = mod;
2314
2315         for (i = 0; i < LENGTH(buttons); i++)
2316                 if (buttons[i].mask & ShiftMask)
2317                         buttons[i].mask = mod | ShiftMask;
2318                 else
2319                         buttons[i].mask = mod;
2320 }
2321
2322 /* spawn */
2323 struct spawn_prog {
2324         char                    *name;
2325         int                     argc;
2326         char                    **argv;
2327 };
2328
2329 int                             spawns_size = 0, spawns_length = 0;
2330 struct spawn_prog               *spawns = NULL;
2331
2332 void
2333 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2334 {
2335         union arg               a;
2336         struct spawn_prog       *prog = NULL;
2337         int                     i;
2338         char                    *ap, **real_args;
2339
2340         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2341
2342         /* find program */
2343         for (i = 0; i < spawns_length; i++) {
2344                 if (!strcasecmp(spawn_name, spawns[i].name))
2345                         prog = &spawns[i];
2346         }
2347         if (prog == NULL) {
2348                 fprintf(stderr, "spawn_custom: program %s not found\n",
2349                     spawn_name);
2350                 return;
2351         }
2352
2353         /* make room for expanded args */
2354         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2355                 err(1, "spawn_custom: calloc real_args");
2356
2357         /* expand spawn_args into real_args */
2358         for (i = 0; i < prog->argc; i++) {
2359                 ap = prog->argv[i];
2360                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2361                 if (!strcasecmp(ap, "$bar_border")) {
2362                         if ((real_args[i] =
2363                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2364                             == NULL)
2365                                 err(1,  "spawn_custom border color");
2366                 } else if (!strcasecmp(ap, "$bar_color")) {
2367                         if ((real_args[i] =
2368                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2369                             == NULL)
2370                                 err(1, "spawn_custom bar color");
2371                 } else if (!strcasecmp(ap, "$bar_font")) {
2372                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2373                             == NULL)
2374                                 err(1, "spawn_custom bar fonts");
2375                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2376                         if ((real_args[i] =
2377                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2378                             == NULL)
2379                                 err(1, "spawn_custom color font");
2380                 } else if (!strcasecmp(ap, "$color_focus")) {
2381                         if ((real_args[i] =
2382                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2383                             == NULL)
2384                                 err(1, "spawn_custom color focus");
2385                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2386                         if ((real_args[i] =
2387                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2388                             == NULL)
2389                                 err(1, "spawn_custom color unfocus");
2390                 } else {
2391                         /* no match --> copy as is */
2392                         if ((real_args[i] = strdup(ap)) == NULL)
2393                                 err(1, "spawn_custom strdup(ap)");
2394                 }
2395                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2396                     real_args[i]);
2397         }
2398
2399 #ifdef SWM_DEBUG
2400         if ((swm_debug & SWM_D_SPAWN) != 0) {
2401                 fprintf(stderr, "spawn_custom: result = ");
2402                 for (i = 0; i < prog->argc; i++)
2403                         fprintf(stderr, "\"%s\" ", real_args[i]);
2404                 fprintf(stderr, "\n");
2405         }
2406 #endif
2407
2408         a.argv = real_args;
2409         spawn(r, &a);
2410         for (i = 0; i < prog->argc; i++)
2411                 free(real_args[i]);
2412         free(real_args);
2413 }
2414
2415 void
2416 setspawn(struct spawn_prog *prog)
2417 {
2418         int                     i, j;
2419
2420         if (prog == NULL || prog->name == NULL)
2421                 return;
2422
2423         /* find existing */
2424         for (i = 0; i < spawns_length; i++) {
2425                 if (!strcmp(spawns[i].name, prog->name)) {
2426                         /* found */
2427                         if (prog->argv == NULL) {
2428                                 /* delete */
2429                                 DNPRINTF(SWM_D_SPAWN,
2430                                     "setspawn: delete #%d %s\n",
2431                                     i, spawns[i].name);
2432                                 free(spawns[i].name);
2433                                 for (j = 0; j < spawns[i].argc; j++)
2434                                         free(spawns[i].argv[j]);
2435                                 free(spawns[i].argv);
2436                                 j = spawns_length - 1;
2437                                 if (i < j)
2438                                         spawns[i] = spawns[j];
2439                                 spawns_length--;
2440                                 free(prog->name);
2441                         } else {
2442                                 /* replace */
2443                                 DNPRINTF(SWM_D_SPAWN,
2444                                     "setspawn: replace #%d %s\n",
2445                                     i, spawns[i].name);
2446                                 free(spawns[i].name);
2447                                 for (j = 0; j < spawns[i].argc; j++)
2448                                         free(spawns[i].argv[j]);
2449                                 free(spawns[i].argv);
2450                                 spawns[i] = *prog;
2451                         }
2452                         /* found case handled */
2453                         free(prog);
2454                         return;
2455                 }
2456         }
2457
2458         if (prog->argv == NULL) {
2459                 fprintf(stderr,
2460                     "error: setspawn: cannot find program %s", prog->name);
2461                 free(prog);
2462                 return;
2463         }
2464
2465         /* not found: add */
2466         if (spawns_size == 0 || spawns == NULL) {
2467                 spawns_size = 4;
2468                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2469                 spawns = malloc((size_t)spawns_size *
2470                     sizeof(struct spawn_prog));
2471                 if (spawns == NULL) {
2472                         fprintf(stderr, "setspawn: malloc failed\n");
2473                         perror(" failed");
2474                         quit(NULL, NULL);
2475                 }
2476         } else if (spawns_length == spawns_size) {
2477                 spawns_size *= 2;
2478                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2479                 spawns = realloc(spawns, (size_t)spawns_size *
2480                     sizeof(struct spawn_prog));
2481                 if (spawns == NULL) {
2482                         fprintf(stderr, "setspawn: realloc failed\n");
2483                         perror(" failed");
2484                         quit(NULL, NULL);
2485                 }
2486         }
2487
2488         if (spawns_length < spawns_size) {
2489                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2490                     spawns_length, prog->name);
2491                 i = spawns_length++;
2492                 spawns[i] = *prog;
2493         } else {
2494                 fprintf(stderr, "spawns array problem?\n");
2495                 if (spawns == NULL) {
2496                         fprintf(stderr, "spawns array is NULL!\n");
2497                         quit(NULL, NULL);
2498                 }
2499         }
2500         free(prog);
2501 }
2502
2503 int
2504 setconfspawn(char *selector, char *value, int flags)
2505 {
2506         struct spawn_prog       *prog;
2507         char                    *vp, *cp, *word;
2508
2509         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2510         if ((prog = calloc(1, sizeof *prog)) == NULL)
2511                 err(1, "setconfspawn: calloc prog");
2512         prog->name = strdup(selector);
2513         if (prog->name == NULL)
2514                 err(1, "setconfspawn prog->name");
2515         if ((cp = vp = strdup(value)) == NULL)
2516                 err(1, "setconfspawn: strdup(value) ");
2517         while ((word = strsep(&cp, " \t")) != NULL) {
2518                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2519                 if (cp)
2520                         cp += (long)strspn(cp, " \t");
2521                 if (strlen(word) > 0) {
2522                         prog->argc++;
2523                         prog->argv = realloc(prog->argv,
2524                             prog->argc * sizeof(char *));
2525                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2526                                 err(1, "setconfspawn: strdup");
2527                 }
2528         }
2529         free(vp);
2530
2531         setspawn(prog);
2532
2533         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2534         return (0);
2535 }
2536
2537 void
2538 setup_spawn(void)
2539 {
2540         setconfspawn("term",            "xterm",                0);
2541         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2542         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2543         setconfspawn("lock",            "xlock",                0);
2544         setconfspawn("initscr",         "initscreen.sh",        0);
2545         setconfspawn("menu",            "dmenu_run"
2546                                         " -fn $bar_font"
2547                                         " -nb $bar_color"
2548                                         " -nf $bar_font_color"
2549                                         " -sb $bar_border"
2550                                         " -sf $bar_color",      0);
2551 }
2552
2553 /* key bindings */
2554 #define SWM_MODNAME_SIZE        32
2555 #define SWM_KEY_WS              "\n+ \t"
2556 int
2557 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2558 {
2559         char                    *cp, *name;
2560         KeySym                  uks;
2561         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2562         if (mod == NULL || ks == NULL) {
2563                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2564                 return (1);
2565         }
2566         if (keystr == NULL || strlen(keystr) == 0) {
2567                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2568                 return (1);
2569         }
2570         cp = keystr;
2571         *ks = NoSymbol;
2572         *mod = 0;
2573         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2574                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2575                 if (cp)
2576                         cp += (long)strspn(cp, SWM_KEY_WS);
2577                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2578                         *mod |= currmod;
2579                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2580                         *mod |= Mod1Mask;
2581                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2582                         *mod += Mod2Mask;
2583                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2584                         *mod |= Mod3Mask;
2585                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2586                         *mod |= Mod4Mask;
2587                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2588                         *mod |= ShiftMask;
2589                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2590                         *mod |= ControlMask;
2591                 else {
2592                         *ks = XStringToKeysym(name);
2593                         XConvertCase(*ks, ks, &uks);
2594                         if (ks == NoSymbol) {
2595                                 DNPRINTF(SWM_D_KEY,
2596                                     "parsekeys: invalid key %s\n",
2597                                     name);
2598                                 return (1);
2599                         }
2600                 }
2601         }
2602         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2603         return (0);
2604 }
2605 char *
2606 strdupsafe(char *str)
2607 {
2608         if (str == NULL)
2609                 return (NULL);
2610         else
2611                 return (strdup(str));
2612 }
2613 void
2614 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2615 {
2616         int                     i, j;
2617         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2618             keyfuncs[kfid].name, spawn_name);
2619         /* find existing */
2620         for (i = 0; i < keys_length; i++) {
2621                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2622                         if (kfid == kf_invalid) {
2623                                 /* found: delete */
2624                                 DNPRINTF(SWM_D_KEY,
2625                                     "setkeybinding: delete #%d %s\n",
2626                                     i, keyfuncs[keys[i].funcid].name);
2627                                 free(keys[i].spawn_name);
2628                                 j = keys_length - 1;
2629                                 if (i < j)
2630                                         keys[i] = keys[j];
2631                                 keys_length--;
2632                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2633                                 return;
2634                         } else {
2635                                 /* found: replace */
2636                                 DNPRINTF(SWM_D_KEY,
2637                                     "setkeybinding: replace #%d %s %s\n",
2638                                     i, keyfuncs[keys[i].funcid].name,
2639                                     spawn_name);
2640                                 free(keys[i].spawn_name);
2641                                 keys[i].mod = mod;
2642                                 keys[i].keysym = ks;
2643                                 keys[i].funcid = kfid;
2644                                 keys[i].spawn_name = strdupsafe(spawn_name);
2645                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2646                                 return;
2647                         }
2648                 }
2649         }
2650         if (kfid == kf_invalid) {
2651                 fprintf(stderr,
2652                     "error: setkeybinding: cannot find mod/key combination");
2653                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2654                 return;
2655         }
2656         /* not found: add */
2657         if (keys_size == 0 || keys == NULL) {
2658                 keys_size = 4;
2659                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2660                 keys = malloc((size_t)keys_size * sizeof(struct key));
2661                 if (!keys) {
2662                         fprintf(stderr, "malloc failed\n");
2663                         perror(" failed");
2664                         quit(NULL, NULL);
2665                 }
2666         } else if (keys_length == keys_size) {
2667                 keys_size *= 2;
2668                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2669                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2670                 if (!keys) {
2671                         fprintf(stderr, "realloc failed\n");
2672                         perror(" failed");
2673                         quit(NULL, NULL);
2674                 }
2675         }
2676         if (keys_length < keys_size) {
2677                 j = keys_length++;
2678                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2679                     j, keyfuncs[kfid].name, spawn_name);
2680                 keys[j].mod = mod;
2681                 keys[j].keysym = ks;
2682                 keys[j].funcid = kfid;
2683                 keys[j].spawn_name = strdupsafe(spawn_name);
2684         } else {
2685                 fprintf(stderr, "keys array problem?\n");
2686                 if (!keys) {
2687                         fprintf(stderr, "keys array problem\n");
2688                         quit(NULL, NULL);
2689                 }
2690         }
2691         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2692 }
2693 int
2694 setconfbinding(char *selector, char *value, int flags)
2695 {
2696         enum keyfuncid          kfid;
2697         unsigned int            mod;
2698         KeySym                  ks;
2699         int                     i;
2700         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2701         if (selector == NULL) {
2702                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2703                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2704                         kfid = kf_invalid;
2705                         setkeybinding(mod, ks, kfid, NULL);
2706                         return (0);
2707                 } else
2708                         return (1);
2709         }
2710         /* search by key function name */
2711         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2712                 if (strncasecmp(selector, keyfuncs[kfid].name,
2713                     SWM_FUNCNAME_LEN) == 0) {
2714                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2715                             selector);
2716                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2717                                 setkeybinding(mod, ks, kfid, NULL);
2718                                 return (0);
2719                         } else
2720                                 return (1);
2721                 }
2722         }
2723         /* search by custom spawn name */
2724         for (i = 0; i < spawns_length; i++) {
2725                 if (strcasecmp(selector, spawns[i].name) == 0) {
2726                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2727                             selector);
2728                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2729                                 setkeybinding(mod, ks, kf_spawn_custom,
2730                                     spawns[i].name);
2731                                 return (0);
2732                         } else
2733                                 return (1);
2734                 }
2735         }
2736         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2737         return (1);
2738 }
2739 void
2740 setup_keys(void)
2741 {
2742         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2743         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2744         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2745         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2746         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2747         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2748         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2749         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2750         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2751         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2752         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2753         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2754         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2755         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2756         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2757         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2758         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2759         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2760         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2761         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2762         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2763         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2764         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2765         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2766         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2767         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2768         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2769         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2770         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2771         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2772         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2773         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2774         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2775         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2776         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2777         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2778         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2779         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2780         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2781         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2782         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2783         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2784         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2785         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2786         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2787         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2788         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2789         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2790         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2791         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2792         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2793         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2794         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2795 }
2796 void
2797 updatenumlockmask(void)
2798 {
2799         unsigned int            i, j;
2800         XModifierKeymap         *modmap;
2801
2802         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2803         numlockmask = 0;
2804         modmap = XGetModifierMapping(display);
2805         for (i = 0; i < 8; i++)
2806                 for (j = 0; j < modmap->max_keypermod; j++)
2807                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2808                           == XKeysymToKeycode(display, XK_Num_Lock))
2809                                 numlockmask = (1 << i);
2810
2811         XFreeModifiermap(modmap);
2812 }
2813
2814 void
2815 grabkeys(void)
2816 {
2817         unsigned int            i, j, k;
2818         KeyCode                 code;
2819         unsigned int            modifiers[] =
2820             { 0, LockMask, numlockmask, numlockmask | LockMask };
2821
2822         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2823         updatenumlockmask();
2824
2825         for (k = 0; k < ScreenCount(display); k++) {
2826                 if (TAILQ_EMPTY(&screens[k].rl))
2827                         continue;
2828                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2829                 for (i = 0; i < keys_length; i++) {
2830                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2831                                 for (j = 0; j < LENGTH(modifiers); j++)
2832                                         XGrabKey(display, code,
2833                                             keys[i].mod | modifiers[j],
2834                                             screens[k].root, True,
2835                                             GrabModeAsync, GrabModeAsync);
2836                 }
2837         }
2838 }
2839
2840 void
2841 grabbuttons(struct ws_win *win, int focused)
2842 {
2843         unsigned int            i, j;
2844         unsigned int            modifiers[] =
2845             { 0, LockMask, numlockmask, numlockmask|LockMask };
2846
2847         updatenumlockmask();
2848         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2849         if(focused) {
2850                 for (i = 0; i < LENGTH(buttons); i++)
2851                         if (buttons[i].action == client_click)
2852                                 for (j = 0; j < LENGTH(modifiers); j++)
2853                                         XGrabButton(display, buttons[i].button,
2854                                             buttons[i].mask | modifiers[j],
2855                                             win->id, False, BUTTONMASK,
2856                                             GrabModeAsync, GrabModeSync, None,
2857                                             None);
2858         } else
2859                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2860                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2861 }
2862
2863 const char *quirkname[] = {
2864         "NONE",         /* config string for "no value" */
2865         "FLOAT",
2866         "TRANSSZ",
2867         "ANYWHERE",
2868         "XTERM_FONTADJ",
2869         "FULLSCREEN",
2870 };
2871
2872 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2873 #define SWM_Q_WS                "\n|+ \t"
2874 int
2875 parsequirks(char *qstr, unsigned long *quirk)
2876 {
2877         char                    *cp, *name;
2878         int                     i;
2879
2880         if (quirk == NULL)
2881                 return (1);
2882
2883         cp = qstr;
2884         *quirk = 0;
2885         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2886                 if (cp)
2887                         cp += (long)strspn(cp, SWM_Q_WS);
2888                 for (i = 0; i < LENGTH(quirkname); i++) {
2889                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2890                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2891                                 if (i == 0) {
2892                                         *quirk = 0;
2893                                         return (0);
2894                                 }
2895                                 *quirk |= 1 << (i-1);
2896                                 break;
2897                         }
2898                 }
2899                 if (i >= LENGTH(quirkname)) {
2900                         DNPRINTF(SWM_D_QUIRK,
2901                             "parsequirks: invalid quirk [%s]\n", name);
2902                         return (1);
2903                 }
2904         }
2905         return (0);
2906 }
2907 void
2908 setquirk(const char *class, const char *name, const int quirk)
2909 {
2910         int                     i, j;
2911
2912         /* find existing */
2913         for (i = 0; i < quirks_length; i++) {
2914                 if (!strcmp(quirks[i].class, class) &&
2915                     !strcmp(quirks[i].name, name)) {
2916                         if (!quirk) {
2917                                 /* found: delete */
2918                                 DNPRINTF(SWM_D_QUIRK,
2919                                     "setquirk: delete #%d %s:%s\n",
2920                                     i, quirks[i].class, quirks[i].name);
2921                                 free(quirks[i].class);
2922                                 free(quirks[i].name);
2923                                 j = quirks_length - 1;
2924                                 if (i < j)
2925                                         quirks[i] = quirks[j];
2926                                 quirks_length--;
2927                                 return;
2928                         } else {
2929                                 /* found: replace */
2930                                 DNPRINTF(SWM_D_QUIRK,
2931                                     "setquirk: replace #%d %s:%s\n",
2932                                     i, quirks[i].class, quirks[i].name);
2933                                 free(quirks[i].class);
2934                                 free(quirks[i].name);
2935                                 quirks[i].class = strdup(class);
2936                                 quirks[i].name = strdup(name);
2937                                 quirks[i].quirk = quirk;
2938                                 return;
2939                         }
2940                 }
2941         }
2942         if (!quirk) {
2943                 fprintf(stderr,
2944                     "error: setquirk: cannot find class/name combination");
2945                 return;
2946         }
2947         /* not found: add */
2948         if (quirks_size == 0 || quirks == NULL) {
2949                 quirks_size = 4;
2950                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2951                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2952                 if (!quirks) {
2953                         fprintf(stderr, "setquirk: malloc failed\n");
2954                         perror(" failed");
2955                         quit(NULL, NULL);
2956                 }
2957         } else if (quirks_length == quirks_size) {
2958                 quirks_size *= 2;
2959                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2960                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2961                 if (!quirks) {
2962                         fprintf(stderr, "setquirk: realloc failed\n");
2963                         perror(" failed");
2964                         quit(NULL, NULL);
2965                 }
2966         }
2967         if (quirks_length < quirks_size) {
2968                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2969                 j = quirks_length++;
2970                 quirks[j].class = strdup(class);
2971                 quirks[j].name = strdup(name);
2972                 quirks[j].quirk = quirk;
2973         } else {
2974                 fprintf(stderr, "quirks array problem?\n");
2975                 if (!quirks) {
2976                         fprintf(stderr, "quirks array problem!\n");
2977                         quit(NULL, NULL);
2978                 }
2979         }
2980 }
2981 int
2982 setconfquirk(char *selector, char *value, int flags)
2983 {
2984         char                    *cp, *class, *name;
2985         int                     retval;
2986         unsigned long           quirks;
2987         if (selector == NULL)
2988                 return (0);
2989         if ((cp = strchr(selector, ':')) == NULL)
2990                 return (0);
2991         *cp = '\0';
2992         class = selector;
2993         name = cp + 1;
2994         if ((retval = parsequirks(value, &quirks)) == 0)
2995                 setquirk(class, name, quirks);
2996         return (retval);
2997 }
2998
2999 void
3000 setup_quirks(void)
3001 {
3002         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3003         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3004         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3005         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3006         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3007         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3008         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3009         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3010         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3011         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3012         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3013         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3014         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3015 }
3016
3017 /* conf file stuff */
3018 #define SWM_CONF_FILE   "scrotwm.conf"
3019
3020 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3021           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3022           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3023           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3024           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3025
3026 int
3027 setconfvalue(char *selector, char *value, int flags)
3028 {
3029         switch (flags) {
3030         case SWM_S_BAR_DELAY:
3031                 bar_delay = atoi(value);
3032                 break;
3033         case SWM_S_BAR_ENABLED:
3034                 bar_enabled = atoi(value);
3035                 break;
3036         case SWM_S_STACK_ENABLED:
3037                 stack_enabled = atoi(value);
3038                 break;
3039         case SWM_S_CLOCK_ENABLED:
3040                 clock_enabled = atoi(value);
3041                 break;
3042         case SWM_S_CYCLE_EMPTY:
3043                 cycle_empty = atoi(value);
3044                 break;
3045         case SWM_S_CYCLE_VISIBLE:
3046                 cycle_visible = atoi(value);
3047                 break;
3048         case SWM_S_SS_ENABLED:
3049                 ss_enabled = atoi(value);
3050                 break;
3051         case SWM_S_TERM_WIDTH:
3052                 term_width = atoi(value);
3053                 break;
3054         case SWM_S_TITLE_CLASS_ENABLED:
3055                 title_class_enabled = atoi(value);
3056                 break;
3057         case SWM_S_TITLE_NAME_ENABLED:
3058                 title_name_enabled = atoi(value);
3059                 break;
3060         case SWM_S_BAR_FONT:
3061                 free(bar_fonts[0]);
3062                 if ((bar_fonts[0] = strdup(value)) == NULL)
3063                         err(1, "setconfvalue: bar_font");
3064                 break;
3065         case SWM_S_BAR_ACTION:
3066                 free(bar_argv[0]);
3067                 if ((bar_argv[0] = strdup(value)) == NULL)
3068                         err(1, "setconfvalue: bar_action");
3069                 break;
3070         case SWM_S_SPAWN_TERM:
3071                 free(spawn_term[0]);
3072                 if ((spawn_term[0] = strdup(value)) == NULL)
3073                         err(1, "setconfvalue: spawn_term");
3074                 break;
3075         case SWM_S_SS_APP:
3076                 break;
3077         case SWM_S_DIALOG_RATIO:
3078                 dialog_ratio = atof(value);
3079                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3080                         dialog_ratio = .6;
3081                 break;
3082         default:
3083                 return (1);
3084         }
3085         return (0);
3086 }
3087
3088 int
3089 setconfmodkey(char *selector, char *value, int flags)
3090 {
3091         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3092                 update_modkey(Mod1Mask);
3093         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3094                 update_modkey(Mod2Mask);
3095         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3096                 update_modkey(Mod3Mask);
3097         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3098                 update_modkey(Mod4Mask);
3099         else
3100                 return (1);
3101         return (0);
3102 }
3103
3104 int
3105 setconfcolor(char *selector, char *value, int flags)
3106 {
3107         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3108         return (0);
3109 }
3110
3111 int
3112 setconfregion(char *selector, char *value, int flags)
3113 {
3114         custom_region(value);
3115         return (0);
3116 }
3117
3118 /* config options */
3119 struct config_option {
3120         char                    *optname;
3121         int (*func)(char*, char*, int);
3122         int funcflags;
3123 };
3124 struct config_option configopt[] = {
3125         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3126         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3127         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3128         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3129         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3130         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3131         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3132         { "bind",                       setconfbinding, 0 },
3133         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3134         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3135         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3136         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3137         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3138         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3139         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3140         { "modkey",                     setconfmodkey,  0 },
3141         { "program",                    setconfspawn,   0 },
3142         { "quirk",                      setconfquirk,   0 },
3143         { "region",                     setconfregion,  0 },
3144         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3145         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3146         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3147         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3148         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3149         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3150 };
3151
3152
3153 int
3154 conf_load(char *filename)
3155 {
3156         FILE                    *config;
3157         char                    *line, *cp, *optsub, *optval;
3158         size_t                  linelen, lineno = 0;
3159         int                     wordlen, i, optind;
3160         struct config_option    *opt;
3161
3162         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3163
3164         if (filename == NULL) {
3165                 fprintf(stderr, "conf_load: no filename\n");
3166                 return (1);
3167         }
3168         if ((config = fopen(filename, "r")) == NULL) {
3169                 warn("conf_load: fopen");
3170                 return (1);
3171         }
3172
3173         while (!feof(config)) {
3174                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3175                     == NULL) {
3176                         if (ferror(config))
3177                                 err(1, "%s", filename);
3178                         else
3179                                 continue;
3180                 }
3181                 cp = line;
3182                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3183                 if (cp[0] == '\0') {
3184                         /* empty line */
3185                         free(line);
3186                         continue;
3187                 }
3188                 /* get config option */
3189                 wordlen = strcspn(cp, "=[ \t\n");
3190                 if (wordlen == 0) {
3191                         warnx("%s: line %zd: no option found",
3192                             filename, lineno);
3193                         return (1);
3194                 }
3195                 optind = -1;
3196                 for (i = 0; i < LENGTH(configopt); i++) {
3197                         opt = &configopt[i];
3198                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3199                             strlen(opt->optname) == wordlen) {
3200                                 optind = i;
3201                                 break;
3202                         }
3203                 }
3204                 if (optind == -1) {
3205                         warnx("%s: line %zd: unknown option %.*s",
3206                             filename, lineno, wordlen, cp);
3207                         return (1);
3208                 }
3209                 cp += wordlen;
3210                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3211                 /* get [selector] if any */
3212                 optsub = NULL;
3213                 if (*cp == '[') {
3214                         cp++;
3215                         wordlen = strcspn(cp, "]");
3216                         if (*cp != ']') {
3217                                 if (wordlen == 0) {
3218                                         warnx("%s: line %zd: syntax error",
3219                                             filename, lineno);
3220                                         return (1);
3221                                 }
3222                                 asprintf(&optsub, "%.*s", wordlen, cp);
3223                         }
3224                         cp += wordlen;
3225                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3226                 }
3227                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3228                 /* get RHS value */
3229                 optval = strdup(cp);
3230                 /* call function to deal with it all */
3231                 if (configopt[optind].func(optsub, optval,
3232                     configopt[optind].funcflags) != 0) {
3233                         fprintf(stderr, "%s line %zd: %s\n",
3234                             filename, lineno, line);
3235                         errx(1, "%s: line %zd: invalid data for %s",
3236                             filename, lineno, configopt[optind].optname);
3237                 }
3238                 free(optval);
3239                 free(optsub);
3240                 free(line);
3241         }
3242
3243         fclose(config);
3244         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3245
3246         return (0);
3247 }
3248
3249 struct ws_win *
3250 manage_window(Window id)
3251 {
3252         Window                  trans = 0;
3253         struct workspace        *ws;
3254         struct ws_win           *win, *ww;
3255         int                     format, i, ws_idx, n, border_me = 0;
3256         unsigned long           nitems, bytes;
3257         Atom                    ws_idx_atom = 0, type;
3258         Atom                    *prot = NULL, *pp;
3259         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3260         struct swm_region       *r;
3261         long                    mask;
3262         const char              *errstr;
3263         XWindowChanges          wc;
3264
3265         if ((win = find_window(id)) != NULL)
3266                         return (win);   /* already being managed */
3267
3268         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3269                 errx(1, "calloc: failed to allocate memory for new window");
3270
3271         /* Get all the window data in one shot */
3272         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3273         if (ws_idx_atom)
3274                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3275                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3276         XGetWindowAttributes(display, id, &win->wa);
3277         XGetWMNormalHints(display, id, &win->sh, &mask);
3278         XGetTransientForHint(display, id, &trans);
3279         if (trans) {
3280                 win->transient = trans;
3281                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3282                     (unsigned)win->id, win->transient);
3283         }
3284         /* get supported protocols */
3285         if (XGetWMProtocols(display, id, &prot, &n)) {
3286                 for (i = 0, pp = prot; i < n; i++, pp++)
3287                         if (*pp == adelete)
3288                                 win->can_delete = 1;
3289                 if (prot)
3290                         XFree(prot);
3291         }
3292
3293         /*
3294          * Figure out where to put the window. If it was previously assigned to
3295          * a workspace (either by spawn() or manually moving), and isn't
3296          * transient, * put it in the same workspace
3297          */
3298         r = root_to_region(win->wa.root);
3299         if (prop && win->transient == 0) {
3300                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3301                 ws_idx = strtonum(prop, 0, 9, &errstr);
3302                 if (errstr) {
3303                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3304                             errstr, prop);
3305                 }
3306                 ws = &r->s->ws[ws_idx];
3307         } else {
3308                 ws = r->ws;
3309                 /* this should launch transients in the same ws as parent */
3310                 if (id && trans)
3311                         if ((ww = find_window(trans)) != NULL)
3312                                 if (ws->r) {
3313                                         ws = ww->ws;
3314                                         if (ww->ws->r)
3315                                                 r = ww->ws->r;
3316                                         else
3317                                                 fprintf(stderr,
3318                                                     "fix this bug mcbride\n");
3319                                         border_me = 1;
3320                                 }
3321         }
3322
3323         /* set up the window layout */
3324         win->id = id;
3325         win->ws = ws;
3326         win->s = r->s;  /* this never changes */
3327         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3328
3329         win->g.w = win->wa.width;
3330         win->g.h = win->wa.height;
3331         win->g.x = win->wa.x;
3332         win->g.y = win->wa.y;
3333
3334         /* Set window properties so we can remember this after reincarnation */
3335         if (ws_idx_atom && prop == NULL &&
3336             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3337                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3338                     ws_idx_str);
3339                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3340                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3341         }
3342         XFree(prop);
3343
3344         if (XGetClassHint(display, win->id, &win->ch)) {
3345                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3346                     win->ch.res_class, win->ch.res_name);
3347                 for (i = 0; i < quirks_length; i++){
3348                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3349                             !strcmp(win->ch.res_name, quirks[i].name)) {
3350                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3351                                     win->ch.res_class, win->ch.res_name);
3352                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3353                                         win->floating = 1;
3354                                 win->quirks = quirks[i].quirk;
3355                         }
3356                 }
3357         }
3358
3359         /* alter window position if quirky */
3360         if (win->quirks & SWM_Q_ANYWHERE) {
3361                 win->manual = 1; /* don't center the quirky windows */
3362                 bzero(&wc, sizeof wc);
3363                 mask = 0;
3364                 if (win->g.y < bar_height) {
3365                         win->g.y = wc.y = bar_height;
3366                         mask |= CWY;
3367                 }
3368                 if (win->g.w + win->g.x > WIDTH(r)) {
3369                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3370                         mask |= CWX;
3371                 }
3372                 border_me = 1;
3373         }
3374
3375         /* Reset font sizes (the bruteforce way; no default keybinding). */
3376         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3377                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3378                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3379                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3380                         fake_keypress(win, XK_KP_Add, ShiftMask);
3381         }
3382
3383         /* border me */
3384         if (border_me) {
3385                 bzero(&wc, sizeof wc);
3386                 wc.border_width = 1;
3387                 mask = CWBorderWidth;
3388                 XConfigureWindow(display, win->id, mask, &wc);
3389         }
3390
3391         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3392             PropertyChangeMask | StructureNotifyMask);
3393
3394         set_win_state(win, NormalState);
3395
3396         /* floaters need to be mapped if they are in the current workspace */
3397         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3398                 XMapRaised(display, win->id);
3399
3400         return (win);
3401 }
3402
3403 void
3404 unmanage_window(struct ws_win *win)
3405 {
3406         struct workspace        *ws;
3407
3408         if (win == NULL)
3409                 return;
3410
3411         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3412
3413         ws = win->ws;
3414         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3415         set_win_state(win, WithdrawnState);
3416         if (win->ch.res_class)
3417                 XFree(win->ch.res_class);
3418         if (win->ch.res_name)
3419                 XFree(win->ch.res_name);
3420         free(win);
3421 }
3422
3423 void
3424 expose(XEvent *e)
3425 {
3426         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3427 }
3428
3429 void
3430 keypress(XEvent *e)
3431 {
3432         unsigned int            i;
3433         KeySym                  keysym;
3434         XKeyEvent               *ev = &e->xkey;
3435
3436         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3437
3438         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3439         for (i = 0; i < keys_length; i++)
3440                 if (keysym == keys[i].keysym
3441                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3442                    && keyfuncs[keys[i].funcid].func) {
3443                         if (keys[i].funcid == kf_spawn_custom)
3444                                 spawn_custom(
3445                                     root_to_region(ev->root),
3446                                     &(keyfuncs[keys[i].funcid].args),
3447                                     keys[i].spawn_name
3448                                     );
3449                         else
3450                                 keyfuncs[keys[i].funcid].func(
3451                                     root_to_region(ev->root),
3452                                     &(keyfuncs[keys[i].funcid].args)
3453                                     );
3454                 }
3455 }
3456
3457 void
3458 buttonpress(XEvent *e)
3459 {
3460         XButtonPressedEvent     *ev = &e->xbutton;
3461
3462         struct ws_win           *win;
3463         int                     i, action;
3464
3465         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3466
3467         action = root_click;
3468         if ((win = find_window(ev->window)) == NULL)
3469                 return;
3470         else {
3471                 focus_win(win);
3472                 action = client_click;
3473         }
3474
3475         for (i = 0; i < LENGTH(buttons); i++)
3476                 if (action == buttons[i].action && buttons[i].func &&
3477                     buttons[i].button == ev->button &&
3478                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3479                         buttons[i].func(win, &buttons[i].args);
3480 }
3481
3482 void
3483 configurerequest(XEvent *e)
3484 {
3485         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3486         struct ws_win           *win;
3487         int                     new = 0;
3488         XWindowChanges          wc;
3489
3490         if ((win = find_window(ev->window)) == NULL)
3491                 new = 1;
3492
3493         if (new) {
3494                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3495                     ev->window);
3496                 bzero(&wc, sizeof wc);
3497                 wc.x = ev->x;
3498                 wc.y = ev->y;
3499                 wc.width = ev->width;
3500                 wc.height = ev->height;
3501                 wc.border_width = ev->border_width;
3502                 wc.sibling = ev->above;
3503                 wc.stack_mode = ev->detail;
3504                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3505         } else {
3506                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3507                     ev->window);
3508                 if (win->floating) {
3509                         if (ev->value_mask & CWX)
3510                                 win->g.x = ev->x;
3511                         if (ev->value_mask & CWY)
3512                                 win->g.y = ev->y;
3513                         if (ev->value_mask & CWWidth)
3514                                 win->g.w = ev->width;
3515                         if (ev->value_mask & CWHeight)
3516                                 win->g.h = ev->height;
3517                         if (win->ws->r != NULL) {
3518                                 /* this seems to be full screen */
3519                                 if (win->g.w >= WIDTH(win->ws->r)) {
3520                                         win->g.x = 0;
3521                                         win->g.w = WIDTH(win->ws->r);
3522                                         ev->value_mask |= CWX | CWWidth;
3523                                 }
3524                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3525                                         /* kill border */
3526                                         win->g.y = 0;
3527                                         win->g.h = HEIGHT(win->ws->r);
3528                                         ev->value_mask |= CWY | CWHeight;
3529                                 }
3530                         }
3531                         if ((ev->value_mask & (CWX | CWY)) &&
3532                             !(ev->value_mask & (CWWidth | CWHeight)))
3533                                 config_win(win);
3534                         XMoveResizeWindow(display, win->id,
3535                             win->g.x, win->g.y, win->g.w, win->g.h);
3536                 } else
3537                         config_win(win);
3538         }
3539 }
3540
3541 void
3542 configurenotify(XEvent *e)
3543 {
3544         struct ws_win           *win;
3545         long                    mask;
3546
3547         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3548             e->xconfigure.window);
3549
3550         XMapWindow(display, e->xconfigure.window);
3551         win = find_window(e->xconfigure.window);
3552         if (win) {
3553                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3554                 adjust_font(win);
3555                 XMapWindow(display, win->id);
3556                 if (font_adjusted)
3557                         stack();
3558         }
3559 }
3560
3561 void
3562 destroynotify(XEvent *e)
3563 {
3564         struct ws_win           *win, *winfocus = NULL;
3565         struct workspace        *ws;
3566         struct ws_win_list      *wl;
3567
3568         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3569
3570         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3571
3572         SWM_EV_PROLOGUE(display);
3573
3574         if ((win = find_window(ev->window)) != NULL) {
3575                 /* find a window to focus */
3576                 ws = win->ws;
3577                 wl = &ws->winlist;
3578
3579                 /* if we are transient give focus to parent */
3580                 if (win->transient)
3581                         winfocus = find_window(win->transient);
3582                 else if (ws->focus == win) {
3583                         /* if in max_stack try harder */
3584                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3585                                 if (win != ws->focus && win != ws->focus_prev)
3586                                         winfocus = ws->focus_prev;
3587
3588                         /* fallback and normal handling */
3589                         if (winfocus == NULL) {
3590                                 if (TAILQ_FIRST(wl) == win)
3591                                         winfocus = TAILQ_NEXT(win, entry);
3592                                 else {
3593                                         winfocus = TAILQ_PREV(ws->focus,
3594                                             ws_win_list, entry);
3595                                         if (winfocus == NULL)
3596                                                 winfocus = TAILQ_LAST(wl,
3597                                                     ws_win_list);
3598                                 }
3599                         }
3600                 }
3601                 ignore_enter = 1;
3602                 unmanage_window(win);
3603                 stack();
3604                 if (winfocus)
3605                         focus_win(winfocus);
3606                 ignore_enter = 0;
3607         }
3608
3609         SWM_EV_EPILOGUE(display);
3610 }
3611
3612 void
3613 enternotify(XEvent *e)
3614 {
3615         XCrossingEvent          *ev = &e->xcrossing;
3616         struct ws_win           *win;
3617
3618         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3619
3620         if (ignore_enter) {
3621                 /* eat event(r) to prevent autofocus */
3622                 ignore_enter = 0;
3623                 return;
3624         }
3625         /*
3626          * happens when a window is created or destroyed and the border
3627          * crosses the mouse pointer
3628          */
3629         if (QLength(display))
3630                 return;
3631
3632         if ((win = find_window(ev->window)) != NULL) {
3633                 if (win->ws->focus == win)
3634                         return;
3635                 focus_win(win);
3636         }
3637 }
3638
3639 void
3640 focusin(XEvent *e)
3641 {
3642         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3643 }
3644
3645 void
3646 focusout(XEvent *e)
3647 {
3648         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3649 }
3650
3651 void
3652 mapnotify(XEvent *e)
3653 {
3654         struct ws_win           *win;
3655         XMapEvent               *ev = &e->xmap;
3656
3657         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3658
3659         SWM_EV_PROLOGUE(display);
3660
3661         win = find_window(ev->window);
3662         if (win)
3663                 set_win_state(win, NormalState);
3664
3665         SWM_EV_EPILOGUE(display);
3666 }
3667
3668 void
3669 mappingnotify(XEvent *e)
3670 {
3671         XMappingEvent           *ev = &e->xmapping;
3672
3673         XRefreshKeyboardMapping(ev);
3674         if (ev->request == MappingKeyboard)
3675                 grabkeys();
3676 }
3677
3678 void
3679 maprequest(XEvent *e)
3680 {
3681         struct ws_win           *win;
3682         struct swm_region       *r;
3683
3684         XMapRequestEvent        *ev = &e->xmaprequest;
3685         XWindowAttributes       wa;
3686
3687         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3688             e->xmaprequest.window);
3689
3690         SWM_EV_PROLOGUE(display);
3691
3692         if (!XGetWindowAttributes(display, ev->window, &wa))
3693                 goto done;
3694         if (wa.override_redirect)
3695                 goto done;
3696
3697         manage_window(e->xmaprequest.window);
3698
3699         stack();
3700
3701         /* make new win focused */
3702         win = find_window(ev->window);
3703         r = root_to_region(win->wa.root);
3704
3705         if (win->ws == r->ws)
3706                 focus_win(win);
3707
3708 done:
3709         SWM_EV_EPILOGUE(display);
3710 }
3711
3712 void
3713 propertynotify(XEvent *e)
3714 {
3715         struct ws_win           *win;
3716         XPropertyEvent          *ev = &e->xproperty;
3717
3718         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3719             ev->window);
3720
3721         if (ev->state == PropertyDelete)
3722                 return; /* ignore */
3723         win = find_window(ev->window);
3724         if (win == NULL)
3725                 return;
3726
3727         switch (ev->atom) {
3728         case XA_WM_NORMAL_HINTS:
3729 #if 0
3730                 long            mask;
3731                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3732                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3733                 if (win->sh.flags & PMinSize) {
3734                         win->g.w = win->sh.min_width;
3735                         win->g.h = win->sh.min_height;
3736                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3737                 }
3738                 XMoveResizeWindow(display, win->id,
3739                     win->g.x, win->g.y, win->g.w, win->g.h);
3740 #endif
3741                 break;
3742         default:
3743                 break;
3744         }
3745 }
3746
3747 void
3748 unmapnotify(XEvent *e)
3749 {
3750         struct ws_win           *win, *winfocus = NULL;
3751         struct workspace        *ws;
3752
3753         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3754
3755         SWM_EV_PROLOGUE(display);
3756
3757         /* determine if we need to help unmanage this window */
3758         win = find_window(e->xunmap.window);
3759         if (win == NULL)
3760                 goto done;
3761
3762         if (getstate(e->xunmap.window) == NormalState) {
3763                 /*
3764                  * this window does not have a destroy event but but it is no
3765                  * longer visible due to the app unmapping it so unmanage it
3766                  */
3767
3768                 ws = win->ws;
3769                 /* if we are max_stack try harder to focus on something */
3770                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3771                         if (win->transient)
3772                                 winfocus = find_window(win->transient);
3773                         else if (win != ws->focus && win != ws->focus_prev)
3774                                 winfocus = ws->focus_prev;
3775                 }
3776
3777                 /* normal and fallback if haven't found anything to focus on */
3778                 if (winfocus == NULL) {
3779                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3780                         if (TAILQ_FIRST(&ws->winlist) == win)
3781                                 winfocus = TAILQ_NEXT(win, entry);
3782                         else {
3783                                 if (ws->focus)
3784                                         winfocus = TAILQ_PREV(ws->focus,
3785                                             ws_win_list, entry);
3786                                 if (winfocus == NULL)
3787                                         winfocus = TAILQ_LAST(&ws->winlist,
3788                                             ws_win_list);
3789                         }
3790                 }
3791
3792                 /* trash window and refocus */
3793                 unmanage_window(win);
3794                 ignore_enter = 1;
3795                 stack();
3796                 focus_win(winfocus);
3797                 ignore_enter = 0;
3798         }
3799
3800 done:
3801         SWM_EV_EPILOGUE(display);
3802 }
3803
3804 void
3805 visibilitynotify(XEvent *e)
3806 {
3807         int                     i;
3808         struct swm_region       *r;
3809
3810         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3811             e->xvisibility.window);
3812         if (e->xvisibility.state == VisibilityUnobscured)
3813                 for (i = 0; i < ScreenCount(display); i++)
3814                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3815                                 if (e->xvisibility.window == r->bar_window)
3816                                         bar_update();
3817 }
3818
3819 int
3820 xerror_start(Display *d, XErrorEvent *ee)
3821 {
3822         other_wm = 1;
3823         return (-1);
3824 }
3825
3826 int
3827 xerror(Display *d, XErrorEvent *ee)
3828 {
3829         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3830         return (-1);
3831 }
3832
3833 int
3834 active_wm(void)
3835 {
3836         other_wm = 0;
3837         xerrorxlib = XSetErrorHandler(xerror_start);
3838
3839         /* this causes an error if some other window manager is running */
3840         XSelectInput(display, DefaultRootWindow(display),
3841             SubstructureRedirectMask);
3842         XSync(display, False);
3843         if (other_wm)
3844                 return (1);
3845
3846         XSetErrorHandler(xerror);
3847         XSync(display, False);
3848         return (0);
3849 }
3850
3851 void
3852 new_region(struct swm_screen *s, int x, int y, int w, int h)
3853 {
3854         struct swm_region       *r, *n;
3855         struct workspace        *ws = NULL;
3856         int                     i;
3857
3858         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3859              s->idx, w, h, x, y);
3860
3861         /* remove any conflicting regions */
3862         n = TAILQ_FIRST(&s->rl);
3863         while (n) {
3864                 r = n;
3865                 n = TAILQ_NEXT(r, entry);
3866                 if (X(r) < (x + w) &&
3867                     (X(r) + WIDTH(r)) > x &&
3868                     Y(r) < (y + h) &&
3869                     (Y(r) + HEIGHT(r)) > y) {
3870                         XDestroyWindow(display, r->bar_window);
3871                         TAILQ_REMOVE(&s->rl, r, entry);
3872                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3873                 }
3874         }
3875
3876         /* search old regions for one to reuse */
3877
3878         /* size + location match */
3879         TAILQ_FOREACH(r, &s->orl, entry)
3880                 if (X(r) == x && Y(r) == y &&
3881                     HEIGHT(r) == h && WIDTH(r) == w)
3882                         break;
3883
3884         /* size match */
3885         TAILQ_FOREACH(r, &s->orl, entry)
3886                 if (HEIGHT(r) == h && WIDTH(r) == w)
3887                         break;
3888
3889         if (r != NULL) {
3890                 TAILQ_REMOVE(&s->orl, r, entry);
3891                 /* try to use old region's workspace */
3892                 if (r->ws->r == NULL)
3893                         ws = r->ws;
3894         } else
3895                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3896                         errx(1, "calloc: failed to allocate memory for screen");
3897
3898         /* if we don't have a workspace already, find one */
3899         if (ws == NULL) {
3900                 for (i = 0; i < SWM_WS_MAX; i++)
3901                         if (s->ws[i].r == NULL) {
3902                                 ws = &s->ws[i];
3903                                 break;
3904                         }
3905         }
3906
3907         if (ws == NULL)
3908                 errx(1, "no free workspaces\n");
3909
3910         X(r) = x;
3911         Y(r) = y;
3912         WIDTH(r) = w;
3913         HEIGHT(r) = h;
3914         r->s = s;
3915         r->ws = ws;
3916         ws->r = r;
3917         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3918 }
3919
3920 void
3921 scan_xrandr(int i)
3922 {
3923 #ifdef SWM_XRR_HAS_CRTC
3924         XRRCrtcInfo             *ci;
3925         XRRScreenResources      *sr;
3926         int                     c;
3927         int                     ncrtc = 0;
3928 #endif /* SWM_XRR_HAS_CRTC */
3929         struct swm_region       *r;
3930
3931
3932         if (i >= ScreenCount(display))
3933                 errx(1, "invalid screen");
3934
3935         /* remove any old regions */
3936         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3937                 r->ws->old_r = r->ws->r = NULL;
3938                 XDestroyWindow(display, r->bar_window);
3939                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3940                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3941         }
3942
3943         /* map virtual screens onto physical screens */
3944 #ifdef SWM_XRR_HAS_CRTC
3945         outputs = 0;
3946         if (xrandr_support) {
3947                 sr = XRRGetScreenResources(display, screens[i].root);
3948                 if (sr == NULL)
3949                         new_region(&screens[i], 0, 0,
3950                             DisplayWidth(display, i),
3951                             DisplayHeight(display, i));
3952                 else
3953                         ncrtc = sr->ncrtc;
3954
3955                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3956                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3957                         if (ci->noutput == 0)
3958                                 continue;
3959                         outputs++;
3960
3961                         if (ci != NULL && ci->mode == None)
3962                                 new_region(&screens[i], 0, 0,
3963                                     DisplayWidth(display, i),
3964                                     DisplayHeight(display, i));
3965                         else
3966                                 new_region(&screens[i],
3967                                     ci->x, ci->y, ci->width, ci->height);
3968                 }
3969                 if (ci)
3970                         XRRFreeCrtcInfo(ci);
3971                 XRRFreeScreenResources(sr);
3972         } else
3973 #endif /* SWM_XRR_HAS_CRTC */
3974         {
3975                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3976                     DisplayHeight(display, i));
3977         }
3978 }
3979
3980 void
3981 screenchange(XEvent *e) {
3982         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3983         struct swm_region               *r;
3984         int                             i;
3985
3986         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3987
3988         if (!XRRUpdateConfiguration(e))
3989                 return;
3990
3991         /* silly event doesn't include the screen index */
3992         for (i = 0; i < ScreenCount(display); i++)
3993                 if (screens[i].root == xe->root)
3994                         break;
3995         if (i >= ScreenCount(display))
3996                 errx(1, "screenchange: screen not found\n");
3997
3998         /* brute force for now, just re-enumerate the regions */
3999         scan_xrandr(i);
4000
4001         /* add bars to all regions */
4002         for (i = 0; i < ScreenCount(display); i++)
4003                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4004                         bar_setup(r);
4005         stack();
4006 }
4007
4008 void
4009 setup_screens(void)
4010 {
4011         Window                  d1, d2, *wins = NULL;
4012         XWindowAttributes       wa;
4013         unsigned int            no;
4014         int                     i, j, k;
4015         int                     errorbase, major, minor;
4016         struct workspace        *ws;
4017         int                     ws_idx_atom;
4018         long                    state, manage;
4019
4020         if ((screens = calloc(ScreenCount(display),
4021              sizeof(struct swm_screen))) == NULL)
4022                 errx(1, "calloc: screens");
4023
4024         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4025
4026         /* initial Xrandr setup */
4027         xrandr_support = XRRQueryExtension(display,
4028             &xrandr_eventbase, &errorbase);
4029         if (xrandr_support)
4030                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4031                         xrandr_support = 0;
4032
4033         /* map physical screens */
4034         for (i = 0; i < ScreenCount(display); i++) {
4035                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4036                 screens[i].idx = i;
4037                 TAILQ_INIT(&screens[i].rl);
4038                 TAILQ_INIT(&screens[i].orl);
4039                 screens[i].root = RootWindow(display, i);
4040
4041                 /* set default colors */
4042                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4043                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4044                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4045                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4046                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4047
4048                 /* init all workspaces */
4049                 /* XXX these should be dynamically allocated too */
4050                 for (j = 0; j < SWM_WS_MAX; j++) {
4051                         ws = &screens[i].ws[j];
4052                         ws->idx = j;
4053                         ws->restack = 1;
4054                         ws->focus = NULL;
4055                         ws->r = NULL;
4056                         ws->old_r = NULL;
4057                         TAILQ_INIT(&ws->winlist);
4058
4059                         for (k = 0; layouts[k].l_stack != NULL; k++)
4060                                 if (layouts[k].l_config != NULL)
4061                                         layouts[k].l_config(ws,
4062                                             SWM_ARG_ID_STACKINIT);
4063                         ws->cur_layout = &layouts[0];
4064                 }
4065                 /* grab existing windows (before we build the bars)*/
4066                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4067                         continue;
4068
4069                 scan_xrandr(i);
4070
4071                 if (xrandr_support)
4072                         XRRSelectInput(display, screens[i].root,
4073                             RRScreenChangeNotifyMask);
4074
4075                 /* attach windows to a region */
4076                 /* normal windows */
4077                 for (j = 0; j < no; j++) {
4078                         XGetWindowAttributes(display, wins[j], &wa);
4079                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4080                             wa.override_redirect ||
4081                             XGetTransientForHint(display, wins[j], &d1))
4082                                 continue;
4083
4084                         state = getstate(wins[j]);
4085                         manage = state == NormalState || state == IconicState;
4086                         if (wa.map_state == IsViewable || manage)
4087                                 manage_window(wins[j]);
4088                 }
4089                 /* transient windows */
4090                 for (j = 0; j < no; j++) {
4091                         if (!XGetWindowAttributes(display, wins[j], &wa))
4092                                 continue;
4093
4094                         state = getstate(wins[j]);
4095                         manage = state == NormalState || state == IconicState;
4096                         if (XGetTransientForHint(display, wins[j], &d1) &&
4097                             manage)
4098                                 manage_window(wins[j]);
4099                 }
4100                 if (wins) {
4101                         XFree(wins);
4102                         wins = NULL;
4103                 }
4104         }
4105 }
4106 void
4107 setup_globals(void)
4108 {
4109         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4110             == NULL)
4111                 err(1, "setup_globals: strdup");
4112         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4113             == NULL)
4114                 err(1, "setup_globals: strdup");
4115         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4116             == NULL)
4117                 err(1, "setup_globals: strdup");
4118         if ((spawn_term[0] = strdup("xterm")) == NULL)
4119                 err(1, "setup_globals: strdup");
4120 }
4121
4122 void
4123 workaround(void)
4124 {
4125         int                     i;
4126         Atom                    netwmcheck, netwmname, utf8_string;
4127         Window                  root;
4128
4129         /* work around sun jdk bugs, code from wmname */
4130         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4131         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4132         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4133         for (i = 0; i < ScreenCount(display); i++) {
4134                 root = screens[i].root;
4135                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4136                     PropModeReplace, (unsigned char *)&root, 1);
4137                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4138                     PropModeReplace, "LG3D", strlen("LG3D"));
4139         }
4140 }
4141
4142 int
4143 main(int argc, char *argv[])
4144 {
4145         struct passwd           *pwd;
4146         struct swm_region       *r, *rr;
4147         struct ws_win           *winfocus = NULL;
4148         char                    conf[PATH_MAX], *cfile = NULL;
4149         struct stat             sb;
4150         XEvent                  e;
4151         int                     xfd, i;
4152         fd_set                  rd;
4153
4154         start_argv = argv;
4155         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4156             SWM_VERSION, cvstag);
4157         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4158                 warnx("no locale support");
4159
4160         if (!(display = XOpenDisplay(0)))
4161                 errx(1, "can not open display");
4162
4163         if (active_wm())
4164                 errx(1, "other wm running");
4165
4166         /* handle some signale */
4167         installsignal(SIGINT, "INT");
4168         installsignal(SIGHUP, "HUP");
4169         installsignal(SIGQUIT, "QUIT");
4170         installsignal(SIGTERM, "TERM");
4171         installsignal(SIGCHLD, "CHLD");
4172
4173         astate = XInternAtom(display, "WM_STATE", False);
4174         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4175         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4176
4177         /* look for local and global conf file */
4178         pwd = getpwuid(getuid());
4179         if (pwd == NULL)
4180                 errx(1, "invalid user %d", getuid());
4181
4182         setup_screens();
4183         setup_globals();
4184         setup_keys();
4185         setup_quirks();
4186         setup_spawn();
4187
4188         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4189         if (stat(conf, &sb) != -1) {
4190                 if (S_ISREG(sb.st_mode))
4191                         cfile = conf;
4192         } else {
4193                 /* try global conf file */
4194                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4195                 if (!stat(conf, &sb))
4196                         if (S_ISREG(sb.st_mode))
4197                                 cfile = conf;
4198         }
4199         if (cfile)
4200                 conf_load(cfile);
4201
4202         /* setup all bars */
4203         for (i = 0; i < ScreenCount(display); i++)
4204                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4205                         if (winfocus == NULL)
4206                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4207                         bar_setup(r);
4208                 }
4209
4210         /* set some values to work around bad programs */
4211         workaround();
4212
4213         grabkeys();
4214         stack();
4215
4216         xfd = ConnectionNumber(display);
4217         while (running) {
4218                 while (XPending(display)) {
4219                         XNextEvent(display, &e);
4220                         if (running == 0)
4221                                 goto done;
4222                         if (e.type < LASTEvent) {
4223                                 dumpevent(&e);
4224                                 if (handler[e.type])
4225                                         handler[e.type](&e);
4226                                 else
4227                                         DNPRINTF(SWM_D_EVENT,
4228                                             "win: %lu unknown event: %d\n",
4229                                             e.xany.window, e.type);
4230                         } else {
4231                                 switch (e.type - xrandr_eventbase) {
4232                                 case RRScreenChangeNotify:
4233                                         screenchange(&e);
4234                                         break;
4235                                 default:
4236                                         DNPRINTF(SWM_D_EVENT,
4237                                             "win: %lu unknown xrandr event: "
4238                                             "%d\n", e.xany.window, e.type);
4239                                         break;
4240                                 }
4241                         }
4242                 }
4243
4244                 /* if we are being restarted go focus on first window */
4245                 if (winfocus) {
4246                         rr = TAILQ_FIRST(&screens[0].rl);
4247                         /* move pointer to first screen if multi screen */
4248                         if (ScreenCount(display) > 1 || outputs > 1)
4249                                 XWarpPointer(display, None, rr->s[0].root,
4250                                     0, 0, 0, 0, rr->g.x,
4251                                     rr->g.y + bar_enabled ? bar_height : 0);
4252
4253                         focus_win(winfocus);
4254                         winfocus = NULL;
4255                         continue;
4256                 }
4257
4258                 FD_ZERO(&rd);
4259                 FD_SET(xfd, &rd);
4260                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4261                         if (errno != EINTR)
4262                                 DNPRINTF(SWM_D_MISC, "select failed");
4263                 if (running == 0)
4264                         goto done;
4265                 if (bar_alarm) {
4266                         bar_alarm = 0;
4267                         bar_update();
4268                 }
4269         }
4270 done:
4271         bar_extra_stop();
4272
4273         XCloseDisplay(display);
4274
4275         return (0);
4276 }