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                    maprequest(XEvent *);
 561 void                    propertynotify(XEvent *);
 562 void                    unmapnotify(XEvent *);
 563 void                    visibilitynotify(XEvent *);
 564
 565 void                    (*handler[LASTEvent])(XEvent *) = {
 566                                 [Expose] = expose,
 567                                 [KeyPress] = keypress,
 568                                 [ButtonPress] = buttonpress,
 569                                 [ConfigureRequest] = configurerequest,
 570                                 [ConfigureNotify] = configurenotify,
 571                                 [DestroyNotify] = destroynotify,
 572                                 [EnterNotify] = enternotify,
 573                                 [FocusIn] = focusin,
 574                                 [FocusOut] = focusout,
 575                                 [MapNotify] = mapnotify,
 576                                 [MapRequest] = maprequest,
 577                                 [PropertyNotify] = propertynotify,
 578                                 [UnmapNotify] = unmapnotify,
 579                                 [VisibilityNotify] = visibilitynotify,
 580 };
 581
 582 void
 583 sighdlr(int sig)
 584 {
 585         pid_t                   pid;
 586
 587         switch (sig) {
 588         case SIGCHLD:
 589                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 590                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 591                         if (pid <= 0)
 592                                 break;
 593                 }
 594                 break;
 595         case SIGINT:
 596         case SIGTERM:
 597         case SIGHUP:
 598         case SIGQUIT:
 599                 running = 0;
 600                 break;
 601         }
 602 }
 603
 604 void
 605 installsignal(int sig, char *name)
 606 {
 607         struct sigaction        sa;
 608
 609         sa.sa_handler = sighdlr;
 610         sigemptyset(&sa.sa_mask);
 611         sa.sa_flags = 0;
 612         if (sigaction(sig, &sa, NULL) == -1)
 613                 err(1, "could not install %s handler", name);
 614 }
 615
 616 unsigned long
 617 name_to_color(char *colorname)
 618 {
 619         Colormap                cmap;
 620         Status                  status;
 621         XColor                  screen_def, exact_def;
 622         unsigned long           result = 0;
 623         char                    cname[32] = "#";
 624
 625         cmap = DefaultColormap(display, screens[0].idx);
 626         status = XAllocNamedColor(display, cmap, colorname,
 627             &screen_def, &exact_def);
 628         if (!status) {
 629                 strlcat(cname, colorname + 2, sizeof cname - 1);
 630                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 631                     &exact_def);
 632         }
 633         if (status)
 634                 result = screen_def.pixel;
 635         else
 636                 fprintf(stderr, "color '%s' not found.\n", colorname);
 637
 638         return (result);
 639 }
 640
 641 void
 642 setscreencolor(char *val, int i, int c)
 643 {
 644         if (i > 0 && i <= ScreenCount(display)) {
 645                 screens[i - 1].c[c].color = name_to_color(val);
 646                 free(screens[i - 1].c[c].name);
 647                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 648                         errx(1, "strdup");
 649         } else if (i == -1) {
 650                 for (i = 0; i < ScreenCount(display); i++) {
 651                         screens[i].c[c].color = name_to_color(val);
 652                         free(screens[i].c[c].name);
 653                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 654                                 errx(1, "strdup");
 655                 }
 656         } else
 657                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 658                     i, ScreenCount(display));
 659 }
 660
 661 void
 662 custom_region(char *val)
 663 {
 664         unsigned int                    sidx, x, y, w, h;
 665
 666         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 667                 errx(1, "invalid custom region, "
 668                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 669         if (sidx < 1 || sidx > ScreenCount(display))
 670                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 671                     sidx, ScreenCount(display));
 672         sidx--;
 673
 674         if (w < 1 || h < 1)
 675                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 676
 677         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 678             y < 0 || y > DisplayHeight(display, sidx) ||
 679             w + x > DisplayWidth(display, sidx) ||
 680             h + y > DisplayHeight(display, sidx))
 681                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 682                     "(%ux%u)\n", w, h, x, y,
 683                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 684
 685         new_region(&screens[sidx], x, y, w, h);
 686 }
 687
 688 void
 689 socket_setnonblock(int fd)
 690 {
 691         int                     flags;
 692
 693         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 694                 err(1, "fcntl F_GETFL");
 695         flags |= O_NONBLOCK;
 696         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 697                 err(1, "fcntl F_SETFL");
 698 }
 699
 700 void
 701 bar_print(struct swm_region *r, char *s)
 702 {
 703         XClearWindow(display, r->bar_window);
 704         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 705         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 706             strlen(s));
 707 }
 708
 709 void
 710 bar_extra_stop(void)
 711 {
 712         if (bar_pipe[0]) {
 713                 close(bar_pipe[0]);
 714                 bzero(bar_pipe, sizeof bar_pipe);
 715         }
 716         if (bar_pid) {
 717                 kill(bar_pid, SIGTERM);
 718                 bar_pid = 0;
 719         }
 720         strlcpy(bar_ext, "", sizeof bar_ext);
 721         bar_extra = 0;
 722 }
 723
 724 void
 725 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 726 {
 727         int                     do_class, do_name;
 728         Status                  status;
 729         XClassHint              *xch = NULL;
 730
 731         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 732             cur_focus != NULL) {
 733                 if ((xch = XAllocClassHint()) == NULL)
 734                         goto out;
 735                 status = XGetClassHint(display, cur_focus->id, xch);
 736                 if (status == BadWindow || status == BadAlloc)
 737                         goto out;
 738                 do_class = (title_class_enabled && xch->res_class != NULL);
 739                 do_name = (title_name_enabled && xch->res_name != NULL);
 740                 if (do_class)
 741                         strlcat(s, xch->res_class, sz);
 742                 if (do_class && do_name)
 743                         strlcat(s, ":", sz);
 744                 if (do_name)
 745                         strlcat(s, xch->res_name, sz);
 746                 strlcat(s, "    ", sz);
 747         }
 748 out:
 749         if (xch)
 750                 XFree(xch);
 751 }
 752
 753 void
 754 bar_update(void)
 755 {
 756         time_t                  tmt;
 757         struct tm               tm;
 758         struct swm_region       *r;
 759         int                     i, x;
 760         size_t                  len;
 761         char                    s[SWM_BAR_MAX];
 762         char                    loc[SWM_BAR_MAX];
 763         char                    *b;
 764         char                    *stack = "";
 765
 766         if (bar_enabled == 0)
 767                 return;
 768         if (bar_extra && bar_extra_running) {
 769                 /* ignore short reads; it'll correct itself */
 770                 while ((b = fgetln(stdin, &len)) != NULL)
 771                         if (b && b[len - 1] == '\n') {
 772                                 b[len - 1] = '\0';
 773                                 strlcpy(bar_ext, b, sizeof bar_ext);
 774                         }
 775                 if (b == NULL && errno != EAGAIN) {
 776                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 777                             errno, strerror(errno));
 778                         bar_extra_stop();
 779                 }
 780         } else
 781                 strlcpy(bar_ext, "", sizeof bar_ext);
 782
 783         if (clock_enabled == 0)
 784                 strlcpy(s, "", sizeof s);
 785         else {
 786                 time(&tmt);
 787                 localtime_r(&tmt, &tm);
 788                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 789         }
 790
 791         for (i = 0; i < ScreenCount(display); i++) {
 792                 x = 1;
 793                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 794                         if (r && r->ws)
 795                                 bar_class_name(s, sizeof s, r->ws->focus);
 796
 797                         if (stack_enabled)
 798                                 stack = r->ws->cur_layout->name;
 799
 800                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 801                             x++, r->ws->idx + 1, stack, s, bar_ext,
 802                             bar_vertext);
 803                         bar_print(r, loc);
 804                 }
 805         }
 806         alarm(bar_delay);
 807 }
 808
 809 void
 810 bar_signal(int sig)
 811 {
 812         bar_alarm = 1;
 813 }
 814
 815 void
 816 bar_toggle(struct swm_region *r, union arg *args)
 817 {
 818         struct swm_region       *tmpr;
 819         int                     i, j, sc = ScreenCount(display);
 820
 821         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 822
 823         if (bar_enabled)
 824                 for (i = 0; i < sc; i++)
 825                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 826                                 XUnmapWindow(display, tmpr->bar_window);
 827         else
 828                 for (i = 0; i < sc; i++)
 829                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 830                                 XMapRaised(display, tmpr->bar_window);
 831
 832         bar_enabled = !bar_enabled;
 833         for (i = 0; i < sc; i++)
 834                 for (j = 0; j < SWM_WS_MAX; j++)
 835                         screens[i].ws[j].restack = 1;
 836
 837         stack();
 838         /* must be after stack */
 839         bar_update();
 840 }
 841
 842 void
 843 bar_refresh(void)
 844 {
 845         XSetWindowAttributes    wa;
 846         struct swm_region       *r;
 847         int                     i;
 848
 849         /* do this here because the conf file is in memory */
 850         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 851                 /* launch external status app */
 852                 bar_extra_running = 1;
 853                 if (pipe(bar_pipe) == -1)
 854                         err(1, "pipe error");
 855                 socket_setnonblock(bar_pipe[0]);
 856                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 857                 if (dup2(bar_pipe[0], 0) == -1)
 858                         errx(1, "dup2");
 859                 if (dup2(bar_pipe[1], 1) == -1)
 860                         errx(1, "dup2");
 861                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 862                         err(1, "could not disable SIGPIPE");
 863                 switch (bar_pid = fork()) {
 864                 case -1:
 865                         err(1, "cannot fork");
 866                         break;
 867                 case 0: /* child */
 868                         close(bar_pipe[0]);
 869                         execvp(bar_argv[0], bar_argv);
 870                         err(1, "%s external app failed", bar_argv[0]);
 871                         break;
 872                 default: /* parent */
 873                         close(bar_pipe[1]);
 874                         break;
 875                 }
 876         }
 877
 878         bzero(&wa, sizeof wa);
 879         for (i = 0; i < ScreenCount(display); i++)
 880                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 881                         wa.border_pixel =
 882                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 883                         wa.background_pixel =
 884                             screens[i].c[SWM_S_COLOR_BAR].color;
 885                         XChangeWindowAttributes(display, r->bar_window,
 886                             CWBackPixel | CWBorderPixel, &wa);
 887                 }
 888         bar_update();
 889 }
 890
 891 void
 892 bar_setup(struct swm_region *r)
 893 {
 894         int                     i;
 895
 896         for (i = 0; bar_fonts[i] != NULL; i++) {
 897                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 898                 if (bar_fs) {
 899                         bar_fidx = i;
 900                         break;
 901                 }
 902         }
 903         if (bar_fonts[i] == NULL)
 904                         errx(1, "couldn't load font");
 905         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 906
 907         r->bar_window = XCreateSimpleWindow(display,
 908             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 909             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 910             r->s->c[SWM_S_COLOR_BAR].color);
 911         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 912         XSetFont(display, bar_gc, bar_fs->fid);
 913         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 914         if (bar_enabled)
 915                 XMapRaised(display, r->bar_window);
 916         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 917
 918         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 919                 err(1, "could not install bar_signal");
 920         bar_refresh();
 921 }
 922
 923 void
 924 set_win_state(struct ws_win *win, long state)
 925 {
 926         long                    data[] = {state, None};
 927
 928         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 929
 930         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 931             (unsigned char *)data, 2);
 932 }
 933
 934 long
 935 getstate(Window w)
 936 {
 937         int                     format, status;
 938         long                    result = -1;
 939         unsigned char           *p = NULL;
 940         unsigned long           n, extra;
 941         Atom                    real;
 942
 943         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 944             &real, &format, &n, &extra, (unsigned char **)&p);
 945         if (status != Success)
 946                 return (-1);
 947         if (n != 0)
 948                 result = *((long *)p);
 949         XFree(p);
 950         return (result);
 951 }
 952
 953 void
 954 version(struct swm_region *r, union arg *args)
 955 {
 956         bar_version = !bar_version;
 957         if (bar_version)
 958                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 959                     SWM_VERSION, cvstag);
 960         else
 961                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 962         bar_update();
 963 }
 964
 965 void
 966 client_msg(struct ws_win *win, Atom a)
 967 {
 968         XClientMessageEvent     cm;
 969
 970         bzero(&cm, sizeof cm);
 971         cm.type = ClientMessage;
 972         cm.window = win->id;
 973         cm.message_type = aprot;
 974         cm.format = 32;
 975         cm.data.l[0] = a;
 976         cm.data.l[1] = CurrentTime;
 977         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 978 }
 979
 980 void
 981 config_win(struct ws_win *win)
 982 {
 983         XConfigureEvent         ce;
 984
 985         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 986             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 987         ce.type = ConfigureNotify;
 988         ce.display = display;
 989         ce.event = win->id;
 990         ce.window = win->id;
 991         ce.x = win->g.x;
 992         ce.y = win->g.y;
 993         ce.width = win->g.w;
 994         ce.height = win->g.h;
 995         ce.border_width = 1; /* XXX store this! */
 996         ce.above = None;
 997         ce.override_redirect = False;
 998         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 999 }
1000
1001 int
1002 count_win(struct workspace *ws, int count_transient)
1003 {
1004         struct ws_win           *win;
1005         int                     count = 0;
1006
1007         TAILQ_FOREACH(win, &ws->winlist, entry) {
1008                 if (count_transient == 0 && win->floating)
1009                         continue;
1010                 if (count_transient == 0 && win->transient)
1011                         continue;
1012                 count++;
1013         }
1014         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1015
1016         return (count);
1017 }
1018
1019 void
1020 quit(struct swm_region *r, union arg *args)
1021 {
1022         DNPRINTF(SWM_D_MISC, "quit\n");
1023         running = 0;
1024 }
1025
1026 void
1027 unmap_window(struct ws_win *win)
1028 {
1029         if (win == NULL)
1030                 return;
1031
1032         set_win_state(win, IconicState);
1033         XUnmapWindow(display, win->id);
1034 }
1035
1036 void
1037 unmap_all(void)
1038 {
1039         struct ws_win           *win;
1040         int                     i, j;
1041
1042         for (i = 0; i < ScreenCount(display); i++)
1043                 for (j = 0; j < SWM_WS_MAX; j++)
1044                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1045                                 unmap_window(win);
1046 }
1047
1048 void
1049 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1050 {
1051         XKeyEvent event;
1052
1053         event.display = display;        /* Ignored, but what the hell */
1054         event.window = win->id;
1055         event.root = win->s->root;
1056         event.subwindow = None;
1057         event.time = CurrentTime;
1058         event.x = win->g.x;
1059         event.y = win->g.y;
1060         event.x_root = 1;
1061         event.y_root = 1;
1062         event.same_screen = True;
1063         event.keycode = XKeysymToKeycode(display, keysym);
1064         event.state = modifiers;
1065
1066         event.type = KeyPress;
1067         XSendEvent(event.display, event.window, True,
1068             KeyPressMask, (XEvent *)&event);
1069
1070         event.type = KeyRelease;
1071         XSendEvent(event.display, event.window, True,
1072             KeyPressMask, (XEvent *)&event);
1073
1074 }
1075
1076 void
1077 restart(struct swm_region *r, union arg *args)
1078 {
1079         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1080
1081         /* disable alarm because the following code may not be interrupted */
1082         alarm(0);
1083         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1084                 errx(1, "can't disable alarm");
1085
1086         bar_extra_stop();
1087         bar_extra = 1;
1088         unmap_all();
1089         XCloseDisplay(display);
1090         execvp(start_argv[0], start_argv);
1091         fprintf(stderr, "execvp failed\n");
1092         perror(" failed");
1093         quit(NULL, NULL);
1094 }
1095
1096 struct swm_region *
1097 root_to_region(Window root)
1098 {
1099         struct swm_region       *r = NULL;
1100         Window                  rr, cr;
1101         int                     i, x, y, wx, wy;
1102         unsigned int            mask;
1103
1104         for (i = 0; i < ScreenCount(display); i++)
1105                 if (screens[i].root == root)
1106                         break;
1107
1108         if (XQueryPointer(display, screens[i].root,
1109             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1110                 /* choose a region based on pointer location */
1111                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1112                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1113                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1114                                 break;
1115         }
1116
1117         if (r == NULL)
1118                 r = TAILQ_FIRST(&screens[i].rl);
1119
1120         return (r);
1121 }
1122
1123 struct ws_win *
1124 find_window(Window id)
1125 {
1126         struct ws_win           *win;
1127         int                     i, j;
1128
1129         for (i = 0; i < ScreenCount(display); i++)
1130                 for (j = 0; j < SWM_WS_MAX; j++)
1131                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1132                                 if (id == win->id)
1133                                         return (win);
1134         return (NULL);
1135 }
1136
1137 void
1138 spawn(struct swm_region *r, union arg *args)
1139 {
1140         char                    *ret;
1141         int                     si;
1142
1143         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1144         /*
1145          * The double-fork construct avoids zombie processes and keeps the code
1146          * clean from stupid signal handlers.
1147          */
1148         if (fork() == 0) {
1149                 if (fork() == 0) {
1150                         if (display)
1151                                 close(ConnectionNumber(display));
1152                         setenv("LD_PRELOAD", SWM_LIB, 1);
1153                         if (asprintf(&ret, "%d", r->ws->idx)) {
1154                                 setenv("_SWM_WS", ret, 1);
1155                                 free(ret);
1156                         }
1157                         if (asprintf(&ret, "%d", getpid())) {
1158                                 setenv("_SWM_PID", ret, 1);
1159                                 free(ret);
1160                         }
1161                         setsid();
1162                         /* kill stdin, mplayer, ssh-add etc. need that */
1163                         si = open("/dev/null", O_RDONLY, 0);
1164                         if (si == -1)
1165                                 err(1, "open /dev/null");
1166                         if (dup2(si, 0) == -1)
1167                                 err(1, "dup2 /dev/null");
1168                         execvp(args->argv[0], args->argv);
1169                         fprintf(stderr, "execvp failed\n");
1170                         perror(" failed");
1171                 }
1172                 exit(0);
1173         }
1174         wait(0);
1175 }
1176
1177 void
1178 spawnterm(struct swm_region *r, union arg *args)
1179 {
1180         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1181
1182         if (term_width)
1183                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1184         spawn(r, args);
1185 }
1186
1187 void
1188 unfocus_win(struct ws_win *win)
1189 {
1190         if (win == NULL)
1191                 return;
1192
1193         if (win->ws->r == NULL)
1194                 return;
1195
1196         grabbuttons(win, 0);
1197         XSetWindowBorder(display, win->id,
1198             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1199
1200         if (win->ws->focus == win) {
1201                 win->ws->focus = NULL;
1202                 win->ws->focus_prev = win;
1203         }
1204 }
1205
1206 void
1207 unfocus_all(void)
1208 {
1209         struct ws_win           *win;
1210         int                     i, j;
1211
1212         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1213
1214         for (i = 0; i < ScreenCount(display); i++)
1215                 for (j = 0; j < SWM_WS_MAX; j++)
1216                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1217                                 unfocus_win(win);
1218         XSync(display, False);
1219 }
1220
1221 void
1222 focus_win(struct ws_win *win)
1223 {
1224         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1225
1226         if (win == NULL)
1227                 return;
1228
1229         /* use big hammer to make sure it works under all use cases */
1230         unfocus_all();
1231         win->ws->focus = win;
1232
1233         if (win->ws->r != NULL) {
1234                 XSetWindowBorder(display, win->id,
1235                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1236                 grabbuttons(win, 1);
1237                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1238                         XMapRaised(display, win->id);
1239                 XSetInputFocus(display, win->id,
1240                     RevertToPointerRoot, CurrentTime);
1241                 XSync(display, False);
1242         }
1243 }
1244
1245 void
1246 switchws(struct swm_region *r, union arg *args)
1247 {
1248         int                     wsid = args->id;
1249         struct swm_region       *this_r, *other_r;
1250         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1251         struct workspace        *new_ws, *old_ws;
1252
1253         this_r = r;
1254         old_ws = this_r->ws;
1255         new_ws = &this_r->s->ws[wsid];
1256
1257         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1258             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1259             old_ws->idx, wsid);
1260
1261         if (new_ws == old_ws)
1262                 return;
1263
1264         /* get focus window */
1265         if (new_ws->focus)
1266                 winfocus = new_ws->focus;
1267         else if (new_ws->focus_prev)
1268                 winfocus = new_ws->focus_prev;
1269         else
1270                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1271
1272         other_r = new_ws->r;
1273         if (other_r == NULL) {
1274                 /* if the other workspace is hidden, switch windows */
1275                 if (old_ws->r != NULL)
1276                         old_ws->old_r = old_ws->r;
1277                 old_ws->r = NULL;
1278                 old_ws->restack = 1;
1279
1280                 /*
1281                  * Map new windows first if they were here before
1282                  * to minimize ugly blinking.
1283                  */
1284                 if (new_ws->old_r == this_r)
1285                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1286                                 if (!(win->ws->cur_layout->flags &
1287                                     SWM_L_MAPONFOCUS))
1288                                         XMapRaised(display, win->id);
1289
1290                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1291                         unmap_window(win);
1292         } else {
1293                 other_r->ws = old_ws;
1294                 old_ws->r = other_r;
1295         }
1296         this_r->ws = new_ws;
1297         new_ws->r = this_r;
1298
1299         ignore_enter = 1;
1300         stack();
1301         if (winfocus) {
1302                 /* make sure we see the parent window */
1303                 if (winfocus->transient) {
1304                         parent = find_window(winfocus->transient);
1305                         if (parent)
1306                                 focus_win(parent);
1307                 }
1308
1309                 focus_win(winfocus);
1310         }
1311         ignore_enter = 0;
1312         bar_update();
1313 }
1314
1315 void
1316 cyclews(struct swm_region *r, union arg *args)
1317 {
1318         union                   arg a;
1319         struct swm_screen       *s = r->s;
1320
1321         DNPRINTF(SWM_D_WS, "cyclews id %d "
1322             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1323             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1324
1325         a.id = r->ws->idx;
1326         do {
1327                 switch (args->id) {
1328                 case SWM_ARG_ID_CYCLEWS_UP:
1329                         if (a.id < SWM_WS_MAX - 1)
1330                                 a.id++;
1331                         else
1332                                 a.id = 0;
1333                         break;
1334                 case SWM_ARG_ID_CYCLEWS_DOWN:
1335                         if (a.id > 0)
1336                                 a.id--;
1337                         else
1338                                 a.id = SWM_WS_MAX - 1;
1339                         break;
1340                 default:
1341                         return;
1342                 };
1343
1344                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1345                         continue;
1346                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1347                         continue;
1348
1349                 switchws(r, &a);
1350         } while (a.id != r->ws->idx);
1351 }
1352
1353 void
1354 cyclescr(struct swm_region *r, union arg *args)
1355 {
1356         struct swm_region       *rr = NULL;
1357         struct workspace        *ws = NULL;
1358         struct ws_win           *winfocus = NULL;
1359         int                     i, x, y;
1360
1361         /* do nothing if we don't have more than one screen */
1362         if (!(ScreenCount(display) > 1 || outputs > 1))
1363                 return;
1364
1365         i = r->s->idx;
1366         switch (args->id) {
1367         case SWM_ARG_ID_CYCLESC_UP:
1368                 rr = TAILQ_NEXT(r, entry);
1369                 if (rr == NULL)
1370                         rr = TAILQ_FIRST(&screens[i].rl);
1371                 break;
1372         case SWM_ARG_ID_CYCLESC_DOWN:
1373                 rr = TAILQ_PREV(r, swm_region_list, entry);
1374                 if (rr == NULL)
1375                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1376                 break;
1377         default:
1378                 return;
1379         };
1380         if (rr == NULL)
1381                 return;
1382
1383         ws = rr->ws;
1384         winfocus = ws->focus;
1385         if (winfocus == NULL)
1386                 winfocus = ws->focus_prev;
1387         if (winfocus) {
1388                 /* use window coordinates */
1389                 x = winfocus->g.x + 1;
1390                 y = winfocus->g.y + 1;
1391         } else {
1392                 /* use region coordinates */
1393                 x = rr->g.x + 1;
1394                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1395         }
1396
1397         unfocus_all();
1398         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1399         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1400
1401         focus_win(winfocus);
1402 }
1403
1404 void
1405 swapwin(struct swm_region *r, union arg *args)
1406 {
1407         struct ws_win           *target, *source;
1408         struct ws_win           *cur_focus;
1409         struct ws_win_list      *wl;
1410
1411
1412         DNPRINTF(SWM_D_WS, "swapwin id %d "
1413             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1414             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1415
1416         cur_focus = r->ws->focus;
1417         if (cur_focus == NULL)
1418                 return;
1419
1420         source = cur_focus;
1421         wl = &source->ws->winlist;
1422
1423         switch (args->id) {
1424         case SWM_ARG_ID_SWAPPREV:
1425                 target = TAILQ_PREV(source, ws_win_list, entry);
1426                 TAILQ_REMOVE(wl, cur_focus, entry);
1427                 if (target == NULL)
1428                         TAILQ_INSERT_TAIL(wl, source, entry);
1429                 else
1430                         TAILQ_INSERT_BEFORE(target, source, entry);
1431                 break;
1432         case SWM_ARG_ID_SWAPNEXT:
1433                 target = TAILQ_NEXT(source, entry);
1434                 TAILQ_REMOVE(wl, source, entry);
1435                 if (target == NULL)
1436                         TAILQ_INSERT_HEAD(wl, source, entry);
1437                 else
1438                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1439                 break;
1440         case SWM_ARG_ID_SWAPMAIN:
1441                 target = TAILQ_FIRST(wl);
1442                 if (target == source) {
1443                         if (source->ws->focus_prev != NULL &&
1444                             source->ws->focus_prev != target)
1445
1446                                 source = source->ws->focus_prev;
1447                         else
1448                                 return;
1449                 }
1450                 source->ws->focus_prev = target;
1451                 TAILQ_REMOVE(wl, target, entry);
1452                 TAILQ_INSERT_BEFORE(source, target, entry);
1453                 TAILQ_REMOVE(wl, source, entry);
1454                 TAILQ_INSERT_HEAD(wl, source, entry);
1455                 break;
1456         default:
1457                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1458                 return;
1459         }
1460
1461         ignore_enter = 1;
1462         stack();
1463 }
1464
1465 void
1466 focus(struct swm_region *r, union arg *args)
1467 {
1468         struct ws_win           *winfocus, *winlostfocus;
1469         struct ws_win_list      *wl;
1470         struct ws_win           *cur_focus;
1471
1472         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1473
1474         cur_focus = r->ws->focus;
1475         if (cur_focus == NULL)
1476                 return;
1477
1478         wl = &cur_focus->ws->winlist;
1479
1480         winlostfocus = cur_focus;
1481
1482         switch (args->id) {
1483         case SWM_ARG_ID_FOCUSPREV:
1484                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1485                 if (winfocus == NULL)
1486                         winfocus = TAILQ_LAST(wl, ws_win_list);
1487                 break;
1488
1489         case SWM_ARG_ID_FOCUSNEXT:
1490                 winfocus = TAILQ_NEXT(cur_focus, entry);
1491                 if (winfocus == NULL)
1492                         winfocus = TAILQ_FIRST(wl);
1493                 break;
1494
1495         case SWM_ARG_ID_FOCUSMAIN:
1496                 winfocus = TAILQ_FIRST(wl);
1497                 if (winfocus == cur_focus)
1498                         winfocus = cur_focus->ws->focus_prev;
1499                 if (winfocus == NULL)
1500                         return;
1501                 break;
1502
1503         default:
1504                 return;
1505         }
1506
1507         if (winfocus == winlostfocus || winfocus == NULL)
1508                 return;
1509
1510         focus_win(winfocus);
1511 }
1512
1513 void
1514 cycle_layout(struct swm_region *r, union arg *args)
1515 {
1516         struct workspace        *ws = r->ws;
1517         struct ws_win           *winfocus, *parent = NULL;
1518
1519         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1520
1521         winfocus = ws->focus;
1522
1523         ws->cur_layout++;
1524         if (ws->cur_layout->l_stack == NULL)
1525                 ws->cur_layout = &layouts[0];
1526
1527         ignore_enter = 1;
1528         stack();
1529         /* make sure we see the parent window */
1530         if (winfocus) {
1531                 if (winfocus->transient)
1532                         parent = find_window(winfocus->transient);
1533                 if (parent)
1534                         focus_win(parent);
1535                 focus_win(winfocus);
1536         }
1537         ignore_enter = 0;
1538 }
1539
1540 void
1541 stack_config(struct swm_region *r, union arg *args)
1542 {
1543         struct workspace        *ws = r->ws;
1544
1545         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1546             args->id, ws->idx);
1547
1548         if (ws->cur_layout->l_config != NULL)
1549                 ws->cur_layout->l_config(ws, args->id);
1550
1551         if (args->id != SWM_ARG_ID_STACKINIT);
1552                 stack();
1553 }
1554
1555 void
1556 stack(void) {
1557         struct swm_geometry     g;
1558         struct swm_region       *r;
1559         int                     i, j;
1560
1561         DNPRINTF(SWM_D_STACK, "stack\n");
1562
1563         for (i = 0; i < ScreenCount(display); i++) {
1564                 j = 0;
1565                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1566                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1567                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1568
1569                         /* start with screen geometry, adjust for bar */
1570                         g = r->g;
1571                         g.w -= 2;
1572                         g.h -= 2;
1573                         if (bar_enabled) {
1574                                 g.y += bar_height;
1575                                 g.h -= bar_height;
1576                         }
1577
1578                         r->ws->restack = 0;
1579                         r->ws->cur_layout->l_stack(r->ws, &g);
1580                 }
1581         }
1582         if (font_adjusted)
1583                 font_adjusted--;
1584         XSync(display, False);
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
2000         unmap_window(win);
2001         TAILQ_REMOVE(&ws->winlist, win, entry);
2002         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2003         win->ws = nws;
2004
2005         /* Try to update the window's workspace property */
2006         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2007         if (ws_idx_atom &&
2008             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2009                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2010                     ws_idx_str);
2011                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2012                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2013         }
2014
2015         if (count_win(nws, 1) == 1)
2016                 nws->focus = win;
2017         ws->restack = 1;
2018         nws->restack = 1;
2019
2020         stack();
2021         if (winfocus)
2022                 focus_win(winfocus);
2023 }
2024
2025 void
2026 wkill(struct swm_region *r, union arg *args)
2027 {
2028         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2029
2030         if(r->ws->focus == NULL)
2031                 return;
2032
2033         if (args->id == SWM_ARG_ID_KILLWINDOW)
2034                 XKillClient(display, r->ws->focus->id);
2035         else
2036                 if (r->ws->focus->can_delete)
2037                         client_msg(r->ws->focus, adelete);
2038 }
2039
2040 void
2041 floating_toggle(struct swm_region *r, union arg *args)
2042 {
2043         struct ws_win   *win = r->ws->focus;
2044
2045         if (win == NULL)
2046                 return;
2047
2048         win->floating = !win->floating;
2049         win->manual = 0;
2050         stack();
2051         focus_win(win);
2052 }
2053
2054 void
2055 resize_window(struct ws_win *win, int center)
2056 {
2057         unsigned int            mask;
2058         XWindowChanges          wc;
2059         struct swm_region       *r;
2060
2061         r = root_to_region(win->wa.root);
2062         bzero(&wc, sizeof wc);
2063         mask = CWBorderWidth | CWWidth | CWHeight;
2064         wc.border_width = 1;
2065         wc.width = win->g.w;
2066         wc.height = win->g.h;
2067         if (center == SWM_ARG_ID_CENTER) {
2068                 wc.x = (WIDTH(r) - win->g.w) / 2;
2069                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2070                 mask |= CWX | CWY;
2071         }
2072
2073         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2074             win->id, wc.x, wc.y, wc.width, wc.height);
2075
2076         XConfigureWindow(display, win->id, mask, &wc);
2077         config_win(win);
2078 }
2079
2080 void
2081 resize(struct ws_win *win, union arg *args)
2082 {
2083         XEvent                  ev;
2084         Time                    time = 0;
2085
2086         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2087             win->id, win->floating, win->transient);
2088
2089         if (!(win->transient != 0 || win->floating != 0))
2090                 return;
2091
2092         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2093             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2094                 return;
2095         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2096         do {
2097                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2098                     SubstructureRedirectMask, &ev);
2099                 switch(ev.type) {
2100                 case ConfigureRequest:
2101                 case Expose:
2102                 case MapRequest:
2103                         handler[ev.type](&ev);
2104                         break;
2105                 case MotionNotify:
2106                         if (ev.xmotion.x <= 1)
2107                                 ev.xmotion.x = 1;
2108                         if (ev.xmotion.y <= 1)
2109                                 ev.xmotion.y = 1;
2110                         win->g.w = ev.xmotion.x;
2111                         win->g.h = ev.xmotion.y;
2112
2113                         /* not free, don't sync more than 60 times / second */
2114                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2115                                 time = ev.xmotion.time;
2116                                 XSync(display, False);
2117                                 resize_window(win, args->id);
2118                         }
2119                         break;
2120                 }
2121         } while (ev.type != ButtonRelease);
2122         if (time) {
2123                 XSync(display, False);
2124                 resize_window(win, args->id);
2125         }
2126         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2127             win->g.h - 1);
2128         XUngrabPointer(display, CurrentTime);
2129
2130         /* drain events */
2131         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2132 }
2133
2134 void
2135 move_window(struct ws_win *win)
2136 {
2137         unsigned int            mask;
2138         XWindowChanges          wc;
2139         struct swm_region       *r;
2140
2141         r = root_to_region(win->wa.root);
2142         bzero(&wc, sizeof wc);
2143         mask = CWX | CWY;
2144         wc.x = win->g.x;
2145         wc.y = win->g.y;
2146
2147         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2148             win->id, wc.x, wc.y, wc.width, wc.height);
2149
2150         XConfigureWindow(display, win->id, mask, &wc);
2151         config_win(win);
2152 }
2153
2154 void
2155 move(struct ws_win *win, union arg *args)
2156 {
2157         XEvent                  ev;
2158         Time                    time = 0;
2159         int                     restack = 0;
2160
2161         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2162             win->id, win->floating, win->transient);
2163
2164         if (win->floating == 0) {
2165                 win->floating = 1;
2166                 win->manual = 1;
2167                 restack = 1;
2168         }
2169
2170         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2171             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2172                 return;
2173         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2174         do {
2175                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2176                     SubstructureRedirectMask, &ev);
2177                 switch(ev.type) {
2178                 case ConfigureRequest:
2179                 case Expose:
2180                 case MapRequest:
2181                         handler[ev.type](&ev);
2182                         break;
2183                 case MotionNotify:
2184                         win->g.x = ev.xmotion.x_root;
2185                         win->g.y = ev.xmotion.y_root;
2186
2187                         /* not free, don't sync more than 60 times / second */
2188                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2189                                 time = ev.xmotion.time;
2190                                 XSync(display, False);
2191                                 move_window(win);
2192                         }
2193                         break;
2194                 }
2195         } while (ev.type != ButtonRelease);
2196         if (time) {
2197                 XSync(display, False);
2198                 move_window(win);
2199         }
2200         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2201         XUngrabPointer(display, CurrentTime);
2202         if (restack)
2203                 stack();
2204
2205         /* drain events */
2206         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2207 }
2208
2209 /* key definitions */
2210 void
2211 dummykeyfunc(struct swm_region *r, union arg *args)
2212 {
2213 };
2214
2215 void
2216 legacyfunc(struct swm_region *r, union arg *args)
2217 {
2218 };
2219
2220 struct keyfunc {
2221         char                    name[SWM_FUNCNAME_LEN];
2222         void                    (*func)(struct swm_region *r, union arg *);
2223         union arg               args;
2224 } keyfuncs[kf_invalid + 1] = {
2225         /* name                 function        argument */
2226         { "cycle_layout",       cycle_layout,   {0} },
2227         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2228         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2229         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2230         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2231         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2232         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2233         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2234         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2235         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2236         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2237         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2238         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2239         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2240         { "spawn_menu",         legacyfunc,     {0} },
2241         { "quit",               quit,           {0} },
2242         { "restart",            restart,        {0} },
2243         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2244         { "ws_1",               switchws,       {.id = 0} },
2245         { "ws_2",               switchws,       {.id = 1} },
2246         { "ws_3",               switchws,       {.id = 2} },
2247         { "ws_4",               switchws,       {.id = 3} },
2248         { "ws_5",               switchws,       {.id = 4} },
2249         { "ws_6",               switchws,       {.id = 5} },
2250         { "ws_7",               switchws,       {.id = 6} },
2251         { "ws_8",               switchws,       {.id = 7} },
2252         { "ws_9",               switchws,       {.id = 8} },
2253         { "ws_10",              switchws,       {.id = 9} },
2254         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2255         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2256         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2257         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2258         { "mvws_1",             send_to_ws,     {.id = 0} },
2259         { "mvws_2",             send_to_ws,     {.id = 1} },
2260         { "mvws_3",             send_to_ws,     {.id = 2} },
2261         { "mvws_4",             send_to_ws,     {.id = 3} },
2262         { "mvws_5",             send_to_ws,     {.id = 4} },
2263         { "mvws_6",             send_to_ws,     {.id = 5} },
2264         { "mvws_7",             send_to_ws,     {.id = 6} },
2265         { "mvws_8",             send_to_ws,     {.id = 7} },
2266         { "mvws_9",             send_to_ws,     {.id = 8} },
2267         { "mvws_10",            send_to_ws,     {.id = 9} },
2268         { "bar_toggle",         bar_toggle,     {0} },
2269         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2270         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2271         { "screenshot_all",     legacyfunc,     {0} },
2272         { "screenshot_wind",    legacyfunc,     {0} },
2273         { "float_toggle",       floating_toggle,{0} },
2274         { "version",            version,        {0} },
2275         { "spawn_lock",         legacyfunc,     {0} },
2276         { "spawn_initscr",      legacyfunc,     {0} },
2277         { "spawn_custom",       dummykeyfunc,   {0} },
2278         { "invalid key func",   NULL,           {0} },
2279 };
2280 struct key {
2281         unsigned int            mod;
2282         KeySym                  keysym;
2283         enum keyfuncid          funcid;
2284         char                    *spawn_name;
2285 };
2286 int                             keys_size = 0, keys_length = 0;
2287 struct key                      *keys = NULL;
2288
2289 /* mouse */
2290 enum { client_click, root_click };
2291 struct button {
2292         unsigned int            action;
2293         unsigned int            mask;
2294         unsigned int            button;
2295         void                    (*func)(struct ws_win *, union arg *);
2296         union arg               args;
2297 } buttons[] = {
2298           /* action     key             mouse button    func    args */
2299         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2300         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2301         { client_click, MODKEY,         Button1,        move,   {0} },
2302 };
2303
2304 void
2305 update_modkey(unsigned int mod)
2306 {
2307         int                     i;
2308
2309         mod_key = mod;
2310         for (i = 0; i < keys_length; i++)
2311                 if (keys[i].mod & ShiftMask)
2312                         keys[i].mod = mod | ShiftMask;
2313                 else
2314                         keys[i].mod = mod;
2315
2316         for (i = 0; i < LENGTH(buttons); i++)
2317                 if (buttons[i].mask & ShiftMask)
2318                         buttons[i].mask = mod | ShiftMask;
2319                 else
2320                         buttons[i].mask = mod;
2321 }
2322
2323 /* spawn */
2324 struct spawn_prog {
2325         char                    *name;
2326         int                     argc;
2327         char                    **argv;
2328 };
2329
2330 int                             spawns_size = 0, spawns_length = 0;
2331 struct spawn_prog               *spawns = NULL;
2332
2333 void
2334 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2335 {
2336         union arg               a;
2337         struct spawn_prog       *prog = NULL;
2338         int                     i;
2339         char                    *ap, **real_args;
2340
2341         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2342
2343         /* find program */
2344         for (i = 0; i < spawns_length; i++) {
2345                 if (!strcasecmp(spawn_name, spawns[i].name))
2346                         prog = &spawns[i];
2347         }
2348         if (prog == NULL) {
2349                 fprintf(stderr, "spawn_custom: program %s not found\n",
2350                     spawn_name);
2351                 return;
2352         }
2353
2354         /* make room for expanded args */
2355         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2356                 err(1, "spawn_custom: calloc real_args");
2357
2358         /* expand spawn_args into real_args */
2359         for (i = 0; i < prog->argc; i++) {
2360                 ap = prog->argv[i];
2361                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2362                 if (!strcasecmp(ap, "$bar_border")) {
2363                         if ((real_args[i] =
2364                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2365                             == NULL)
2366                                 err(1,  "spawn_custom border color");
2367                 } else if (!strcasecmp(ap, "$bar_color")) {
2368                         if ((real_args[i] =
2369                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2370                             == NULL)
2371                                 err(1, "spawn_custom bar color");
2372                 } else if (!strcasecmp(ap, "$bar_font")) {
2373                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2374                             == NULL)
2375                                 err(1, "spawn_custom bar fonts");
2376                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2377                         if ((real_args[i] =
2378                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2379                             == NULL)
2380                                 err(1, "spawn_custom color font");
2381                 } else if (!strcasecmp(ap, "$color_focus")) {
2382                         if ((real_args[i] =
2383                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2384                             == NULL)
2385                                 err(1, "spawn_custom color focus");
2386                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2387                         if ((real_args[i] =
2388                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2389                             == NULL)
2390                                 err(1, "spawn_custom color unfocus");
2391                 } else {
2392                         /* no match --> copy as is */
2393                         if ((real_args[i] = strdup(ap)) == NULL)
2394                                 err(1, "spawn_custom strdup(ap)");
2395                 }
2396                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2397                     real_args[i]);
2398         }
2399
2400 #ifdef SWM_DEBUG
2401         if ((swm_debug & SWM_D_SPAWN) != 0) {
2402                 fprintf(stderr, "spawn_custom: result = ");
2403                 for (i = 0; i < prog->argc; i++)
2404                         fprintf(stderr, "\"%s\" ", real_args[i]);
2405                 fprintf(stderr, "\n");
2406         }
2407 #endif
2408
2409         a.argv = real_args;
2410         spawn(r, &a);
2411         for (i = 0; i < prog->argc; i++)
2412                 free(real_args[i]);
2413         free(real_args);
2414 }
2415
2416 void
2417 setspawn(struct spawn_prog *prog)
2418 {
2419         int                     i, j;
2420
2421         if (prog == NULL || prog->name == NULL)
2422                 return;
2423
2424         /* find existing */
2425         for (i = 0; i < spawns_length; i++) {
2426                 if (!strcmp(spawns[i].name, prog->name)) {
2427                         /* found */
2428                         if (prog->argv == NULL) {
2429                                 /* delete */
2430                                 DNPRINTF(SWM_D_SPAWN,
2431                                     "setspawn: delete #%d %s\n",
2432                                     i, spawns[i].name);
2433                                 free(spawns[i].name);
2434                                 for (j = 0; j < spawns[i].argc; j++)
2435                                         free(spawns[i].argv[j]);
2436                                 free(spawns[i].argv);
2437                                 j = spawns_length - 1;
2438                                 if (i < j)
2439                                         spawns[i] = spawns[j];
2440                                 spawns_length--;
2441                                 free(prog->name);
2442                         } else {
2443                                 /* replace */
2444                                 DNPRINTF(SWM_D_SPAWN,
2445                                     "setspawn: replace #%d %s\n",
2446                                     i, spawns[i].name);
2447                                 free(spawns[i].name);
2448                                 for (j = 0; j < spawns[i].argc; j++)
2449                                         free(spawns[i].argv[j]);
2450                                 free(spawns[i].argv);
2451                                 spawns[i] = *prog;
2452                         }
2453                         /* found case handled */
2454                         free(prog);
2455                         return;
2456                 }
2457         }
2458
2459         if (prog->argv == NULL) {
2460                 fprintf(stderr,
2461                     "error: setspawn: cannot find program %s", prog->name);
2462                 free(prog);
2463                 return;
2464         }
2465
2466         /* not found: add */
2467         if (spawns_size == 0 || spawns == NULL) {
2468                 spawns_size = 4;
2469                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2470                 spawns = malloc((size_t)spawns_size *
2471                     sizeof(struct spawn_prog));
2472                 if (spawns == NULL) {
2473                         fprintf(stderr, "setspawn: malloc failed\n");
2474                         perror(" failed");
2475                         quit(NULL, NULL);
2476                 }
2477         } else if (spawns_length == spawns_size) {
2478                 spawns_size *= 2;
2479                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2480                 spawns = realloc(spawns, (size_t)spawns_size *
2481                     sizeof(struct spawn_prog));
2482                 if (spawns == NULL) {
2483                         fprintf(stderr, "setspawn: realloc failed\n");
2484                         perror(" failed");
2485                         quit(NULL, NULL);
2486                 }
2487         }
2488
2489         if (spawns_length < spawns_size) {
2490                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2491                     spawns_length, prog->name);
2492                 i = spawns_length++;
2493                 spawns[i] = *prog;
2494         } else {
2495                 fprintf(stderr, "spawns array problem?\n");
2496                 if (spawns == NULL) {
2497                         fprintf(stderr, "spawns array is NULL!\n");
2498                         quit(NULL, NULL);
2499                 }
2500         }
2501         free(prog);
2502 }
2503
2504 int
2505 setconfspawn(char *selector, char *value, int flags)
2506 {
2507         struct spawn_prog       *prog;
2508         char                    *vp, *cp, *word;
2509
2510         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2511         if ((prog = calloc(1, sizeof *prog)) == NULL)
2512                 err(1, "setconfspawn: calloc prog");
2513         prog->name = strdup(selector);
2514         if (prog->name == NULL)
2515                 err(1, "setconfspawn prog->name");
2516         if ((cp = vp = strdup(value)) == NULL)
2517                 err(1, "setconfspawn: strdup(value) ");
2518         while ((word = strsep(&cp, " \t")) != NULL) {
2519                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2520                 if (cp)
2521                         cp += (long)strspn(cp, " \t");
2522                 if (strlen(word) > 0) {
2523                         prog->argc++;
2524                         prog->argv = realloc(prog->argv,
2525                             prog->argc * sizeof(char *));
2526                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2527                                 err(1, "setconfspawn: strdup");
2528                 }
2529         }
2530         free(vp);
2531
2532         setspawn(prog);
2533
2534         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2535         return (0);
2536 }
2537
2538 void
2539 setup_spawn(void)
2540 {
2541         setconfspawn("term",            "xterm",                0);
2542         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2543         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2544         setconfspawn("lock",            "xlock",                0);
2545         setconfspawn("initscr",         "initscreen.sh",        0);
2546         setconfspawn("menu",            "dmenu_run"
2547                                         " -fn $bar_font"
2548                                         " -nb $bar_color"
2549                                         " -nf $bar_font_color"
2550                                         " -sb $bar_border"
2551                                         " -sf $bar_color",      0);
2552 }
2553
2554 /* key bindings */
2555 #define SWM_MODNAME_SIZE        32
2556 #define SWM_KEY_WS              "\n+ \t"
2557 int
2558 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2559 {
2560         char                    *cp, *name;
2561         KeySym                  uks;
2562         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2563         if (mod == NULL || ks == NULL) {
2564                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2565                 return (1);
2566         }
2567         if (keystr == NULL || strlen(keystr) == 0) {
2568                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2569                 return (1);
2570         }
2571         cp = keystr;
2572         *ks = NoSymbol;
2573         *mod = 0;
2574         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2575                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2576                 if (cp)
2577                         cp += (long)strspn(cp, SWM_KEY_WS);
2578                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2579                         *mod |= currmod;
2580                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2581                         *mod |= Mod1Mask;
2582                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2583                         *mod += Mod2Mask;
2584                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2585                         *mod |= Mod3Mask;
2586                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2587                         *mod |= Mod4Mask;
2588                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2589                         *mod |= ShiftMask;
2590                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2591                         *mod |= ControlMask;
2592                 else {
2593                         *ks = XStringToKeysym(name);
2594                         XConvertCase(*ks, ks, &uks);
2595                         if (ks == NoSymbol) {
2596                                 DNPRINTF(SWM_D_KEY,
2597                                     "parsekeys: invalid key %s\n",
2598                                     name);
2599                                 return (1);
2600                         }
2601                 }
2602         }
2603         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2604         return (0);
2605 }
2606 char *
2607 strdupsafe(char *str)
2608 {
2609         if (str == NULL)
2610                 return (NULL);
2611         else
2612                 return (strdup(str));
2613 }
2614 void
2615 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2616 {
2617         int                     i, j;
2618         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2619             keyfuncs[kfid].name, spawn_name);
2620         /* find existing */
2621         for (i = 0; i < keys_length; i++) {
2622                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2623                         if (kfid == kf_invalid) {
2624                                 /* found: delete */
2625                                 DNPRINTF(SWM_D_KEY,
2626                                     "setkeybinding: delete #%d %s\n",
2627                                     i, keyfuncs[keys[i].funcid].name);
2628                                 free(keys[i].spawn_name);
2629                                 j = keys_length - 1;
2630                                 if (i < j)
2631                                         keys[i] = keys[j];
2632                                 keys_length--;
2633                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2634                                 return;
2635                         } else {
2636                                 /* found: replace */
2637                                 DNPRINTF(SWM_D_KEY,
2638                                     "setkeybinding: replace #%d %s %s\n",
2639                                     i, keyfuncs[keys[i].funcid].name,
2640                                     spawn_name);
2641                                 free(keys[i].spawn_name);
2642                                 keys[i].mod = mod;
2643                                 keys[i].keysym = ks;
2644                                 keys[i].funcid = kfid;
2645                                 keys[i].spawn_name = strdupsafe(spawn_name);
2646                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2647                                 return;
2648                         }
2649                 }
2650         }
2651         if (kfid == kf_invalid) {
2652                 fprintf(stderr,
2653                     "error: setkeybinding: cannot find mod/key combination");
2654                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2655                 return;
2656         }
2657         /* not found: add */
2658         if (keys_size == 0 || keys == NULL) {
2659                 keys_size = 4;
2660                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2661                 keys = malloc((size_t)keys_size * sizeof(struct key));
2662                 if (!keys) {
2663                         fprintf(stderr, "malloc failed\n");
2664                         perror(" failed");
2665                         quit(NULL, NULL);
2666                 }
2667         } else if (keys_length == keys_size) {
2668                 keys_size *= 2;
2669                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2670                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2671                 if (!keys) {
2672                         fprintf(stderr, "realloc failed\n");
2673                         perror(" failed");
2674                         quit(NULL, NULL);
2675                 }
2676         }
2677         if (keys_length < keys_size) {
2678                 j = keys_length++;
2679                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2680                     j, keyfuncs[kfid].name, spawn_name);
2681                 keys[j].mod = mod;
2682                 keys[j].keysym = ks;
2683                 keys[j].funcid = kfid;
2684                 keys[j].spawn_name = strdupsafe(spawn_name);
2685         } else {
2686                 fprintf(stderr, "keys array problem?\n");
2687                 if (!keys) {
2688                         fprintf(stderr, "keys array problem\n");
2689                         quit(NULL, NULL);
2690                 }
2691         }
2692         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2693 }
2694 int
2695 setconfbinding(char *selector, char *value, int flags)
2696 {
2697         enum keyfuncid          kfid;
2698         unsigned int            mod;
2699         KeySym                  ks;
2700         int                     i;
2701         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2702         if (selector == NULL) {
2703                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2704                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2705                         kfid = kf_invalid;
2706                         setkeybinding(mod, ks, kfid, NULL);
2707                         return (0);
2708                 } else
2709                         return (1);
2710         }
2711         /* search by key function name */
2712         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2713                 if (strncasecmp(selector, keyfuncs[kfid].name,
2714                     SWM_FUNCNAME_LEN) == 0) {
2715                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2716                             selector);
2717                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2718                                 setkeybinding(mod, ks, kfid, NULL);
2719                                 return (0);
2720                         } else
2721                                 return (1);
2722                 }
2723         }
2724         /* search by custom spawn name */
2725         for (i = 0; i < spawns_length; i++) {
2726                 if (strcasecmp(selector, spawns[i].name) == 0) {
2727                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2728                             selector);
2729                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2730                                 setkeybinding(mod, ks, kf_spawn_custom,
2731                                     spawns[i].name);
2732                                 return (0);
2733                         } else
2734                                 return (1);
2735                 }
2736         }
2737         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2738         return (1);
2739 }
2740 void
2741 setup_keys(void)
2742 {
2743         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2744         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2745         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2746         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2747         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2748         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2749         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2750         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2751         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2752         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2753         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2754         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2755         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2756         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2757         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2758         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2759         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2760         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2761         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2762         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2763         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2764         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2765         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2766         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2767         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2768         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2769         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2770         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2771         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2772         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2773         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2774         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2775         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2776         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2777         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2778         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2779         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2780         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2781         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2782         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2783         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2784         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2785         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2786         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2787         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2788         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2789         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2790         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2791         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2792         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2793         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2794         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2795         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2796 }
2797 void
2798 updatenumlockmask(void)
2799 {
2800         unsigned int            i, j;
2801         XModifierKeymap         *modmap;
2802
2803         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2804         numlockmask = 0;
2805         modmap = XGetModifierMapping(display);
2806         for (i = 0; i < 8; i++)
2807                 for (j = 0; j < modmap->max_keypermod; j++)
2808                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2809                           == XKeysymToKeycode(display, XK_Num_Lock))
2810                                 numlockmask = (1 << i);
2811
2812         XFreeModifiermap(modmap);
2813 }
2814
2815 void
2816 grabkeys(void)
2817 {
2818         unsigned int            i, j, k;
2819         KeyCode                 code;
2820         unsigned int            modifiers[] =
2821             { 0, LockMask, numlockmask, numlockmask | LockMask };
2822
2823         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2824         updatenumlockmask();
2825
2826         for (k = 0; k < ScreenCount(display); k++) {
2827                 if (TAILQ_EMPTY(&screens[k].rl))
2828                         continue;
2829                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2830                 for (i = 0; i < keys_length; i++) {
2831                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2832                                 for (j = 0; j < LENGTH(modifiers); j++)
2833                                         XGrabKey(display, code,
2834                                             keys[i].mod | modifiers[j],
2835                                             screens[k].root, True,
2836                                             GrabModeAsync, GrabModeAsync);
2837                 }
2838         }
2839 }
2840
2841 void
2842 grabbuttons(struct ws_win *win, int focused)
2843 {
2844         unsigned int            i, j;
2845         unsigned int            modifiers[] =
2846             { 0, LockMask, numlockmask, numlockmask|LockMask };
2847
2848         updatenumlockmask();
2849         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2850         if(focused) {
2851                 for (i = 0; i < LENGTH(buttons); i++)
2852                         if (buttons[i].action == client_click)
2853                                 for (j = 0; j < LENGTH(modifiers); j++)
2854                                         XGrabButton(display, buttons[i].button,
2855                                             buttons[i].mask | modifiers[j],
2856                                             win->id, False, BUTTONMASK,
2857                                             GrabModeAsync, GrabModeSync, None,
2858                                             None);
2859         } else
2860                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2861                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2862 }
2863
2864 const char *quirkname[] = {
2865         "NONE",         /* config string for "no value" */
2866         "FLOAT",
2867         "TRANSSZ",
2868         "ANYWHERE",
2869         "XTERM_FONTADJ",
2870         "FULLSCREEN",
2871 };
2872
2873 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2874 #define SWM_Q_WS                "\n|+ \t"
2875 int
2876 parsequirks(char *qstr, unsigned long *quirk)
2877 {
2878         char                    *cp, *name;
2879         int                     i;
2880
2881         if (quirk == NULL)
2882                 return (1);
2883
2884         cp = qstr;
2885         *quirk = 0;
2886         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2887                 if (cp)
2888                         cp += (long)strspn(cp, SWM_Q_WS);
2889                 for (i = 0; i < LENGTH(quirkname); i++) {
2890                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2891                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2892                                 if (i == 0) {
2893                                         *quirk = 0;
2894                                         return (0);
2895                                 }
2896                                 *quirk |= 1 << (i-1);
2897                                 break;
2898                         }
2899                 }
2900                 if (i >= LENGTH(quirkname)) {
2901                         DNPRINTF(SWM_D_QUIRK,
2902                             "parsequirks: invalid quirk [%s]\n", name);
2903                         return (1);
2904                 }
2905         }
2906         return (0);
2907 }
2908 void
2909 setquirk(const char *class, const char *name, const int quirk)
2910 {
2911         int                     i, j;
2912
2913         /* find existing */
2914         for (i = 0; i < quirks_length; i++) {
2915                 if (!strcmp(quirks[i].class, class) &&
2916                     !strcmp(quirks[i].name, name)) {
2917                         if (!quirk) {
2918                                 /* found: delete */
2919                                 DNPRINTF(SWM_D_QUIRK,
2920                                     "setquirk: delete #%d %s:%s\n",
2921                                     i, quirks[i].class, quirks[i].name);
2922                                 free(quirks[i].class);
2923                                 free(quirks[i].name);
2924                                 j = quirks_length - 1;
2925                                 if (i < j)
2926                                         quirks[i] = quirks[j];
2927                                 quirks_length--;
2928                                 return;
2929                         } else {
2930                                 /* found: replace */
2931                                 DNPRINTF(SWM_D_QUIRK,
2932                                     "setquirk: replace #%d %s:%s\n",
2933                                     i, quirks[i].class, quirks[i].name);
2934                                 free(quirks[i].class);
2935                                 free(quirks[i].name);
2936                                 quirks[i].class = strdup(class);
2937                                 quirks[i].name = strdup(name);
2938                                 quirks[i].quirk = quirk;
2939                                 return;
2940                         }
2941                 }
2942         }
2943         if (!quirk) {
2944                 fprintf(stderr,
2945                     "error: setquirk: cannot find class/name combination");
2946                 return;
2947         }
2948         /* not found: add */
2949         if (quirks_size == 0 || quirks == NULL) {
2950                 quirks_size = 4;
2951                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2952                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2953                 if (!quirks) {
2954                         fprintf(stderr, "setquirk: malloc failed\n");
2955                         perror(" failed");
2956                         quit(NULL, NULL);
2957                 }
2958         } else if (quirks_length == quirks_size) {
2959                 quirks_size *= 2;
2960                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2961                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2962                 if (!quirks) {
2963                         fprintf(stderr, "setquirk: realloc failed\n");
2964                         perror(" failed");
2965                         quit(NULL, NULL);
2966                 }
2967         }
2968         if (quirks_length < quirks_size) {
2969                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2970                 j = quirks_length++;
2971                 quirks[j].class = strdup(class);
2972                 quirks[j].name = strdup(name);
2973                 quirks[j].quirk = quirk;
2974         } else {
2975                 fprintf(stderr, "quirks array problem?\n");
2976                 if (!quirks) {
2977                         fprintf(stderr, "quirks array problem!\n");
2978                         quit(NULL, NULL);
2979                 }
2980         }
2981 }
2982 int
2983 setconfquirk(char *selector, char *value, int flags)
2984 {
2985         char                    *cp, *class, *name;
2986         int                     retval;
2987         unsigned long           quirks;
2988         if (selector == NULL)
2989                 return (0);
2990         if ((cp = strchr(selector, ':')) == NULL)
2991                 return (0);
2992         *cp = '\0';
2993         class = selector;
2994         name = cp + 1;
2995         if ((retval = parsequirks(value, &quirks)) == 0)
2996                 setquirk(class, name, quirks);
2997         return (retval);
2998 }
2999
3000 void
3001 setup_quirks(void)
3002 {
3003         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3004         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3005         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3006         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3007         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3008         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3009         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3010         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3011         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3012         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3013         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3014         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3015         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3016 }
3017
3018 /* conf file stuff */
3019 #define SWM_CONF_FILE   "scrotwm.conf"
3020
3021 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3022           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3023           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3024           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3025           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3026
3027 int
3028 setconfvalue(char *selector, char *value, int flags)
3029 {
3030         switch (flags) {
3031         case SWM_S_BAR_DELAY:
3032                 bar_delay = atoi(value);
3033                 break;
3034         case SWM_S_BAR_ENABLED:
3035                 bar_enabled = atoi(value);
3036                 break;
3037         case SWM_S_STACK_ENABLED:
3038                 stack_enabled = atoi(value);
3039                 break;
3040         case SWM_S_CLOCK_ENABLED:
3041                 clock_enabled = atoi(value);
3042                 break;
3043         case SWM_S_CYCLE_EMPTY:
3044                 cycle_empty = atoi(value);
3045                 break;
3046         case SWM_S_CYCLE_VISIBLE:
3047                 cycle_visible = atoi(value);
3048                 break;
3049         case SWM_S_SS_ENABLED:
3050                 ss_enabled = atoi(value);
3051                 break;
3052         case SWM_S_TERM_WIDTH:
3053                 term_width = atoi(value);
3054                 break;
3055         case SWM_S_TITLE_CLASS_ENABLED:
3056                 title_class_enabled = atoi(value);
3057                 break;
3058         case SWM_S_TITLE_NAME_ENABLED:
3059                 title_name_enabled = atoi(value);
3060                 break;
3061         case SWM_S_BAR_FONT:
3062                 free(bar_fonts[0]);
3063                 if ((bar_fonts[0] = strdup(value)) == NULL)
3064                         err(1, "setconfvalue: bar_font");
3065                 break;
3066         case SWM_S_BAR_ACTION:
3067                 free(bar_argv[0]);
3068                 if ((bar_argv[0] = strdup(value)) == NULL)
3069                         err(1, "setconfvalue: bar_action");
3070                 break;
3071         case SWM_S_SPAWN_TERM:
3072                 free(spawn_term[0]);
3073                 if ((spawn_term[0] = strdup(value)) == NULL)
3074                         err(1, "setconfvalue: spawn_term");
3075                 break;
3076         case SWM_S_SS_APP:
3077                 break;
3078         case SWM_S_DIALOG_RATIO:
3079                 dialog_ratio = atof(value);
3080                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3081                         dialog_ratio = .6;
3082                 break;
3083         default:
3084                 return (1);
3085         }
3086         return (0);
3087 }
3088
3089 int
3090 setconfmodkey(char *selector, char *value, int flags)
3091 {
3092         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3093                 update_modkey(Mod1Mask);
3094         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3095                 update_modkey(Mod2Mask);
3096         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3097                 update_modkey(Mod3Mask);
3098         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3099                 update_modkey(Mod4Mask);
3100         else
3101                 return (1);
3102         return (0);
3103 }
3104
3105 int
3106 setconfcolor(char *selector, char *value, int flags)
3107 {
3108         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3109         return (0);
3110 }
3111
3112 int
3113 setconfregion(char *selector, char *value, int flags)
3114 {
3115         custom_region(value);
3116         return (0);
3117 }
3118
3119 /* config options */
3120 struct config_option {
3121         char                    *optname;
3122         int (*func)(char*, char*, int);
3123         int funcflags;
3124 };
3125 struct config_option configopt[] = {
3126         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3127         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3128         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3129         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3130         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3131         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3132         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3133         { "bind",                       setconfbinding, 0 },
3134         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3135         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3136         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3137         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3138         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3139         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3140         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3141         { "modkey",                     setconfmodkey,  0 },
3142         { "program",                    setconfspawn,   0 },
3143         { "quirk",                      setconfquirk,   0 },
3144         { "region",                     setconfregion,  0 },
3145         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3146         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3147         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3148         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3149         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3150         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3151 };
3152
3153
3154 int
3155 conf_load(char *filename)
3156 {
3157         FILE                    *config;
3158         char                    *line, *cp, *optsub, *optval;
3159         size_t                  linelen, lineno = 0;
3160         int                     wordlen, i, optind;
3161         struct config_option    *opt;
3162
3163         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3164
3165         if (filename == NULL) {
3166                 fprintf(stderr, "conf_load: no filename\n");
3167                 return (1);
3168         }
3169         if ((config = fopen(filename, "r")) == NULL) {
3170                 warn("conf_load: fopen");
3171                 return (1);
3172         }
3173
3174         while (!feof(config)) {
3175                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3176                     == NULL) {
3177                         if (ferror(config))
3178                                 err(1, "%s", filename);
3179                         else
3180                                 continue;
3181                 }
3182                 cp = line;
3183                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3184                 if (cp[0] == '\0') {
3185                         /* empty line */
3186                         free(line);
3187                         continue;
3188                 }
3189                 /* get config option */
3190                 wordlen = strcspn(cp, "=[ \t\n");
3191                 if (wordlen == 0) {
3192                         warnx("%s: line %zd: no option found",
3193                             filename, lineno);
3194                         return (1);
3195                 }
3196                 optind = -1;
3197                 for (i = 0; i < LENGTH(configopt); i++) {
3198                         opt = &configopt[i];
3199                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3200                             strlen(opt->optname) == wordlen) {
3201                                 optind = i;
3202                                 break;
3203                         }
3204                 }
3205                 if (optind == -1) {
3206                         warnx("%s: line %zd: unknown option %.*s",
3207                             filename, lineno, wordlen, cp);
3208                         return (1);
3209                 }
3210                 cp += wordlen;
3211                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3212                 /* get [selector] if any */
3213                 optsub = NULL;
3214                 if (*cp == '[') {
3215                         cp++;
3216                         wordlen = strcspn(cp, "]");
3217                         if (*cp != ']') {
3218                                 if (wordlen == 0) {
3219                                         warnx("%s: line %zd: syntax error",
3220                                             filename, lineno);
3221                                         return (1);
3222                                 }
3223                                 asprintf(&optsub, "%.*s", wordlen, cp);
3224                         }
3225                         cp += wordlen;
3226                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3227                 }
3228                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3229                 /* get RHS value */
3230                 optval = strdup(cp);
3231                 /* call function to deal with it all */
3232                 if (configopt[optind].func(optsub, optval,
3233                     configopt[optind].funcflags) != 0) {
3234                         fprintf(stderr, "%s line %zd: %s\n",
3235                             filename, lineno, line);
3236                         errx(1, "%s: line %zd: invalid data for %s",
3237                             filename, lineno, configopt[optind].optname);
3238                 }
3239                 free(optval);
3240                 free(optsub);
3241                 free(line);
3242         }
3243
3244         fclose(config);
3245         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3246
3247         return (0);
3248 }
3249
3250 struct ws_win *
3251 manage_window(Window id)
3252 {
3253         Window                  trans = 0;
3254         struct workspace        *ws;
3255         struct ws_win           *win, *ww;
3256         int                     format, i, ws_idx, n, border_me = 0;
3257         unsigned long           nitems, bytes;
3258         Atom                    ws_idx_atom = 0, type;
3259         Atom                    *prot = NULL, *pp;
3260         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3261         struct swm_region       *r;
3262         long                    mask;
3263         const char              *errstr;
3264         XWindowChanges          wc;
3265
3266         if ((win = find_window(id)) != NULL)
3267                         return (win);   /* already being managed */
3268
3269         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3270                 errx(1, "calloc: failed to allocate memory for new window");
3271
3272         /* Get all the window data in one shot */
3273         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3274         if (ws_idx_atom)
3275                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3276                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3277         XGetWindowAttributes(display, id, &win->wa);
3278         XGetWMNormalHints(display, id, &win->sh, &mask);
3279         XGetTransientForHint(display, id, &trans);
3280         if (trans) {
3281                 win->transient = trans;
3282                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3283                     (unsigned)win->id, win->transient);
3284         }
3285         /* get supported protocols */
3286         if (XGetWMProtocols(display, id, &prot, &n)) {
3287                 for (i = 0, pp = prot; i < n; i++, pp++)
3288                         if (*pp == adelete)
3289                                 win->can_delete = 1;
3290                 if (prot)
3291                         XFree(prot);
3292         }
3293
3294         /*
3295          * Figure out where to put the window. If it was previously assigned to
3296          * a workspace (either by spawn() or manually moving), and isn't
3297          * transient, * put it in the same workspace
3298          */
3299         r = root_to_region(win->wa.root);
3300         if (prop && win->transient == 0) {
3301                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3302                 ws_idx = strtonum(prop, 0, 9, &errstr);
3303                 if (errstr) {
3304                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3305                             errstr, prop);
3306                 }
3307                 ws = &r->s->ws[ws_idx];
3308         } else {
3309                 ws = r->ws;
3310                 /* this should launch transients in the same ws as parent */
3311                 if (id && trans)
3312                         if ((ww = find_window(trans)) != NULL)
3313                                 if (ws->r) {
3314                                         ws = ww->ws;
3315                                         if (ww->ws->r)
3316                                                 r = ww->ws->r;
3317                                         else
3318                                                 fprintf(stderr,
3319                                                     "fix this bug mcbride\n");
3320                                         border_me = 1;
3321                                 }
3322         }
3323
3324         /* set up the window layout */
3325         win->id = id;
3326         win->ws = ws;
3327         win->s = r->s;  /* this never changes */
3328         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3329
3330         win->g.w = win->wa.width;
3331         win->g.h = win->wa.height;
3332         win->g.x = win->wa.x;
3333         win->g.y = win->wa.y;
3334
3335         /* Set window properties so we can remember this after reincarnation */
3336         if (ws_idx_atom && prop == NULL &&
3337             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3338                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3339                     ws_idx_str);
3340                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3341                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3342         }
3343         XFree(prop);
3344
3345         if (XGetClassHint(display, win->id, &win->ch)) {
3346                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3347                     win->ch.res_class, win->ch.res_name);
3348                 for (i = 0; i < quirks_length; i++){
3349                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3350                             !strcmp(win->ch.res_name, quirks[i].name)) {
3351                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3352                                     win->ch.res_class, win->ch.res_name);
3353                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3354                                         win->floating = 1;
3355                                 win->quirks = quirks[i].quirk;
3356                         }
3357                 }
3358         }
3359
3360         /* alter window position if quirky */
3361         if (win->quirks & SWM_Q_ANYWHERE) {
3362                 win->manual = 1; /* don't center the quirky windows */
3363                 bzero(&wc, sizeof wc);
3364                 mask = 0;
3365                 if (win->g.y < bar_height) {
3366                         win->g.y = wc.y = bar_height;
3367                         mask |= CWY;
3368                 }
3369                 if (win->g.w + win->g.x > WIDTH(r)) {
3370                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3371                         mask |= CWX;
3372                 }
3373                 border_me = 1;
3374         }
3375
3376         /* Reset font sizes (the bruteforce way; no default keybinding). */
3377         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3378                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3379                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3380                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3381                         fake_keypress(win, XK_KP_Add, ShiftMask);
3382         }
3383
3384         /* border me */
3385         if (border_me) {
3386                 bzero(&wc, sizeof wc);
3387                 wc.border_width = 1;
3388                 mask = CWBorderWidth;
3389                 XConfigureWindow(display, win->id, mask, &wc);
3390         }
3391
3392         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3393             PropertyChangeMask | StructureNotifyMask);
3394
3395         set_win_state(win, NormalState);
3396
3397         /* floaters need to be mapped if they are in the current workspace */
3398         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3399                 XMapRaised(display, win->id);
3400
3401         return (win);
3402 }
3403
3404 void
3405 unmanage_window(struct ws_win *win)
3406 {
3407         struct workspace        *ws;
3408
3409         if (win == NULL)
3410                 return;
3411
3412         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3413
3414         ws = win->ws;
3415         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3416         set_win_state(win, WithdrawnState);
3417         if (win->ch.res_class)
3418                 XFree(win->ch.res_class);
3419         if (win->ch.res_name)
3420                 XFree(win->ch.res_name);
3421         free(win);
3422 }
3423
3424 void
3425 expose(XEvent *e)
3426 {
3427         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3428 }
3429
3430 void
3431 keypress(XEvent *e)
3432 {
3433         unsigned int            i;
3434         KeySym                  keysym;
3435         XKeyEvent               *ev = &e->xkey;
3436
3437         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3438
3439         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3440         for (i = 0; i < keys_length; i++)
3441                 if (keysym == keys[i].keysym
3442                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3443                    && keyfuncs[keys[i].funcid].func) {
3444                         if (keys[i].funcid == kf_spawn_custom)
3445                                 spawn_custom(
3446                                     root_to_region(ev->root),
3447                                     &(keyfuncs[keys[i].funcid].args),
3448                                     keys[i].spawn_name
3449                                     );
3450                         else
3451                                 keyfuncs[keys[i].funcid].func(
3452                                     root_to_region(ev->root),
3453                                     &(keyfuncs[keys[i].funcid].args)
3454                                     );
3455                 }
3456 }
3457
3458 void
3459 buttonpress(XEvent *e)
3460 {
3461         XButtonPressedEvent     *ev = &e->xbutton;
3462
3463         struct ws_win           *win;
3464         int                     i, action;
3465
3466         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3467
3468         action = root_click;
3469         if ((win = find_window(ev->window)) == NULL)
3470                 return;
3471         else {
3472                 focus_win(win);
3473                 action = client_click;
3474         }
3475
3476         for (i = 0; i < LENGTH(buttons); i++)
3477                 if (action == buttons[i].action && buttons[i].func &&
3478                     buttons[i].button == ev->button &&
3479                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3480                         buttons[i].func(win, &buttons[i].args);
3481 }
3482
3483 void
3484 configurerequest(XEvent *e)
3485 {
3486         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3487         struct ws_win           *win;
3488         int                     new = 0;
3489         XWindowChanges          wc;
3490
3491         if ((win = find_window(ev->window)) == NULL)
3492                 new = 1;
3493
3494         if (new) {
3495                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3496                     ev->window);
3497                 bzero(&wc, sizeof wc);
3498                 wc.x = ev->x;
3499                 wc.y = ev->y;
3500                 wc.width = ev->width;
3501                 wc.height = ev->height;
3502                 wc.border_width = ev->border_width;
3503                 wc.sibling = ev->above;
3504                 wc.stack_mode = ev->detail;
3505                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3506         } else {
3507                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3508                     ev->window);
3509                 if (win->floating) {
3510                         if (ev->value_mask & CWX)
3511                                 win->g.x = ev->x;
3512                         if (ev->value_mask & CWY)
3513                                 win->g.y = ev->y;
3514                         if (ev->value_mask & CWWidth)
3515                                 win->g.w = ev->width;
3516                         if (ev->value_mask & CWHeight)
3517                                 win->g.h = ev->height;
3518                         if (win->ws->r != NULL) {
3519                                 /* this seems to be full screen */
3520                                 if (win->g.w >= WIDTH(win->ws->r)) {
3521                                         win->g.x = 0;
3522                                         win->g.w = WIDTH(win->ws->r);
3523                                         ev->value_mask |= CWX | CWWidth;
3524                                 }
3525                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3526                                         /* kill border */
3527                                         win->g.y = 0;
3528                                         win->g.h = HEIGHT(win->ws->r);
3529                                         ev->value_mask |= CWY | CWHeight;
3530                                 }
3531                         }
3532                         if ((ev->value_mask & (CWX | CWY)) &&
3533                             !(ev->value_mask & (CWWidth | CWHeight)))
3534                                 config_win(win);
3535                         XMoveResizeWindow(display, win->id,
3536                             win->g.x, win->g.y, win->g.w, win->g.h);
3537                 } else
3538                         config_win(win);
3539         }
3540 }
3541
3542 void
3543 configurenotify(XEvent *e)
3544 {
3545         struct ws_win           *win;
3546         long                    mask;
3547
3548         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3549             e->xconfigure.window);
3550
3551         XMapWindow(display, e->xconfigure.window);
3552         win = find_window(e->xconfigure.window);
3553         if (win) {
3554                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3555                 adjust_font(win);
3556                 XMapWindow(display, win->id);
3557                 if (font_adjusted)
3558                         stack();
3559         }
3560 }
3561
3562 void
3563 destroynotify(XEvent *e)
3564 {
3565         struct ws_win           *win, *winfocus = NULL;
3566         struct workspace        *ws;
3567         struct ws_win_list      *wl;
3568
3569         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3570
3571         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3572
3573         SWM_EV_PROLOGUE(display);
3574
3575         if ((win = find_window(ev->window)) != NULL) {
3576                 /* find a window to focus */
3577                 ws = win->ws;
3578                 wl = &ws->winlist;
3579
3580                 /* if we are transient give focus to parent */
3581                 if (win->transient)
3582                         winfocus = find_window(win->transient);
3583                 else if (ws->focus == win) {
3584                         /* if in max_stack try harder */
3585                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3586                                 if (win != ws->focus && win != ws->focus_prev)
3587                                         winfocus = ws->focus_prev;
3588
3589                         /* fallback and normal handling */
3590                         if (winfocus == NULL) {
3591                                 if (TAILQ_FIRST(wl) == win)
3592                                         winfocus = TAILQ_NEXT(win, entry);
3593                                 else {
3594                                         winfocus = TAILQ_PREV(ws->focus,
3595                                             ws_win_list, entry);
3596                                         if (winfocus == NULL)
3597                                                 winfocus = TAILQ_LAST(wl,
3598                                                     ws_win_list);
3599                                 }
3600                         }
3601                 }
3602                 ignore_enter = 1;
3603                 unmanage_window(win);
3604                 stack();
3605                 if (winfocus)
3606                         focus_win(winfocus);
3607                 ignore_enter = 0;
3608         }
3609
3610         SWM_EV_EPILOGUE(display);
3611 }
3612
3613 void
3614 enternotify(XEvent *e)
3615 {
3616         XCrossingEvent          *ev = &e->xcrossing;
3617         struct ws_win           *win;
3618
3619         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3620
3621         if (ignore_enter) {
3622                 /* eat event(r) to prevent autofocus */
3623                 ignore_enter = 0;
3624                 return;
3625         }
3626         /*
3627          * happens when a window is created or destroyed and the border
3628          * crosses the mouse pointer
3629          */
3630         if (QLength(display))
3631                 return;
3632
3633         if ((win = find_window(ev->window)) != NULL) {
3634                 if (win->ws->focus == win)
3635                         return;
3636                 focus_win(win);
3637         }
3638 }
3639
3640 void
3641 focusin(XEvent *e)
3642 {
3643         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3644 }
3645
3646 void
3647 focusout(XEvent *e)
3648 {
3649         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3650 }
3651
3652 void
3653 mapnotify(XEvent *e)
3654 {
3655         struct ws_win           *win;
3656         XMappingEvent           *ev = &e->xmapping;
3657
3658         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3659
3660         SWM_EV_PROLOGUE(display);
3661
3662         win = find_window(ev->window);
3663         if (win)
3664                 set_win_state(win, NormalState);
3665
3666         XRefreshKeyboardMapping(ev);
3667         if (ev->request == MappingKeyboard)
3668                 grabkeys();
3669
3670         SWM_EV_EPILOGUE(display);
3671 }
3672
3673 void
3674 maprequest(XEvent *e)
3675 {
3676         struct ws_win           *win;
3677         struct swm_region       *r;
3678
3679         XMapRequestEvent        *ev = &e->xmaprequest;
3680         XWindowAttributes       wa;
3681
3682         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3683             e->xmaprequest.window);
3684
3685         SWM_EV_PROLOGUE(display);
3686
3687         if (!XGetWindowAttributes(display, ev->window, &wa))
3688                 goto done;
3689         if (wa.override_redirect)
3690                 goto done;
3691
3692         manage_window(e->xmaprequest.window);
3693
3694         stack();
3695
3696         /* make new win focused */
3697         win = find_window(ev->window);
3698         r = root_to_region(win->wa.root);
3699
3700         if (win->ws == r->ws)
3701                 focus_win(win);
3702
3703 done:
3704         SWM_EV_EPILOGUE(display);
3705 }
3706
3707 void
3708 propertynotify(XEvent *e)
3709 {
3710         struct ws_win           *win;
3711         XPropertyEvent          *ev = &e->xproperty;
3712
3713         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3714             ev->window);
3715
3716         if (ev->state == PropertyDelete)
3717                 return; /* ignore */
3718         win = find_window(ev->window);
3719         if (win == NULL)
3720                 return;
3721
3722         switch (ev->atom) {
3723         case XA_WM_NORMAL_HINTS:
3724 #if 0
3725                 long            mask;
3726                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3727                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3728                 if (win->sh.flags & PMinSize) {
3729                         win->g.w = win->sh.min_width;
3730                         win->g.h = win->sh.min_height;
3731                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3732                 }
3733                 XMoveResizeWindow(display, win->id,
3734                     win->g.x, win->g.y, win->g.w, win->g.h);
3735 #endif
3736                 break;
3737         default:
3738                 break;
3739         }
3740 }
3741
3742 void
3743 unmapnotify(XEvent *e)
3744 {
3745         struct ws_win           *win, *winfocus = NULL;
3746         struct workspace        *ws;
3747
3748         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3749
3750         SWM_EV_PROLOGUE(display);
3751
3752         /* determine if we need to help unmanage this window */
3753         win = find_window(e->xunmap.window);
3754         if (win == NULL)
3755                 goto done;
3756
3757         if (getstate(e->xunmap.window) == NormalState) {
3758                 /*
3759                  * this window does not have a destroy event but but it is no
3760                  * longer visible due to the app unmapping it so unmanage it
3761                  */
3762
3763                 ws = win->ws;
3764                 /* if we are max_stack try harder to focus on something */
3765                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3766                         if (win->transient)
3767                                 winfocus = find_window(win->transient);
3768                         else if (win != ws->focus && win != ws->focus_prev)
3769                                 winfocus = ws->focus_prev;
3770                 }
3771
3772                 /* normal and fallback if haven't found anything to focus on */
3773                 if (winfocus == NULL) {
3774                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3775                         if (TAILQ_FIRST(&ws->winlist) == win)
3776                                 winfocus = TAILQ_NEXT(win, entry);
3777                         else {
3778                                 if (ws->focus)
3779                                         winfocus = TAILQ_PREV(ws->focus,
3780                                             ws_win_list, entry);
3781                                 if (winfocus == NULL)
3782                                         winfocus = TAILQ_LAST(&ws->winlist,
3783                                             ws_win_list);
3784                         }
3785                 }
3786
3787                 /* trash window and refocus */
3788                 unmanage_window(win);
3789                 ignore_enter = 1;
3790                 stack();
3791                 focus_win(winfocus);
3792                 ignore_enter = 0;
3793         }
3794
3795 done:
3796         SWM_EV_EPILOGUE(display);
3797 }
3798
3799 void
3800 visibilitynotify(XEvent *e)
3801 {
3802         int                     i;
3803         struct swm_region       *r;
3804
3805         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3806             e->xvisibility.window);
3807         if (e->xvisibility.state == VisibilityUnobscured)
3808                 for (i = 0; i < ScreenCount(display); i++)
3809                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3810                                 if (e->xvisibility.window == r->bar_window)
3811                                         bar_update();
3812 }
3813
3814 int
3815 xerror_start(Display *d, XErrorEvent *ee)
3816 {
3817         other_wm = 1;
3818         return (-1);
3819 }
3820
3821 int
3822 xerror(Display *d, XErrorEvent *ee)
3823 {
3824         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3825         return (-1);
3826 }
3827
3828 int
3829 active_wm(void)
3830 {
3831         other_wm = 0;
3832         xerrorxlib = XSetErrorHandler(xerror_start);
3833
3834         /* this causes an error if some other window manager is running */
3835         XSelectInput(display, DefaultRootWindow(display),
3836             SubstructureRedirectMask);
3837         XSync(display, False);
3838         if (other_wm)
3839                 return (1);
3840
3841         XSetErrorHandler(xerror);
3842         XSync(display, False);
3843         return (0);
3844 }
3845
3846 void
3847 new_region(struct swm_screen *s, int x, int y, int w, int h)
3848 {
3849         struct swm_region       *r, *n;
3850         struct workspace        *ws = NULL;
3851         int                     i;
3852
3853         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3854              s->idx, w, h, x, y);
3855
3856         /* remove any conflicting regions */
3857         n = TAILQ_FIRST(&s->rl);
3858         while (n) {
3859                 r = n;
3860                 n = TAILQ_NEXT(r, entry);
3861                 if (X(r) < (x + w) &&
3862                     (X(r) + WIDTH(r)) > x &&
3863                     Y(r) < (y + h) &&
3864                     (Y(r) + HEIGHT(r)) > y) {
3865                         XDestroyWindow(display, r->bar_window);
3866                         TAILQ_REMOVE(&s->rl, r, entry);
3867                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3868                 }
3869         }
3870
3871         /* search old regions for one to reuse */
3872
3873         /* size + location match */
3874         TAILQ_FOREACH(r, &s->orl, entry)
3875                 if (X(r) == x && Y(r) == y &&
3876                     HEIGHT(r) == h && WIDTH(r) == w)
3877                         break;
3878
3879         /* size match */
3880         TAILQ_FOREACH(r, &s->orl, entry)
3881                 if (HEIGHT(r) == h && WIDTH(r) == w)
3882                         break;
3883
3884         if (r != NULL) {
3885                 TAILQ_REMOVE(&s->orl, r, entry);
3886                 /* try to use old region's workspace */
3887                 if (r->ws->r == NULL)
3888                         ws = r->ws;
3889         } else
3890                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3891                         errx(1, "calloc: failed to allocate memory for screen");
3892
3893         /* if we don't have a workspace already, find one */
3894         if (ws == NULL) {
3895                 for (i = 0; i < SWM_WS_MAX; i++)
3896                         if (s->ws[i].r == NULL) {
3897                                 ws = &s->ws[i];
3898                                 break;
3899                         }
3900         }
3901
3902         if (ws == NULL)
3903                 errx(1, "no free workspaces\n");
3904
3905         X(r) = x;
3906         Y(r) = y;
3907         WIDTH(r) = w;
3908         HEIGHT(r) = h;
3909         r->s = s;
3910         r->ws = ws;
3911         ws->r = r;
3912         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3913 }
3914
3915 void
3916 scan_xrandr(int i)
3917 {
3918 #ifdef SWM_XRR_HAS_CRTC
3919         XRRCrtcInfo             *ci;
3920         XRRScreenResources      *sr;
3921         int                     c;
3922         int                     ncrtc = 0;
3923 #endif /* SWM_XRR_HAS_CRTC */
3924         struct swm_region       *r;
3925
3926
3927         if (i >= ScreenCount(display))
3928                 errx(1, "invalid screen");
3929
3930         /* remove any old regions */
3931         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3932                 r->ws->old_r = r->ws->r = NULL;
3933                 XDestroyWindow(display, r->bar_window);
3934                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3935                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3936         }
3937
3938         /* map virtual screens onto physical screens */
3939 #ifdef SWM_XRR_HAS_CRTC
3940         outputs = 0;
3941         if (xrandr_support) {
3942                 sr = XRRGetScreenResources(display, screens[i].root);
3943                 if (sr == NULL)
3944                         new_region(&screens[i], 0, 0,
3945                             DisplayWidth(display, i),
3946                             DisplayHeight(display, i));
3947                 else
3948                         ncrtc = sr->ncrtc;
3949
3950                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3951                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3952                         if (ci->noutput == 0)
3953                                 continue;
3954                         outputs++;
3955
3956                         if (ci != NULL && ci->mode == None)
3957                                 new_region(&screens[i], 0, 0,
3958                                     DisplayWidth(display, i),
3959                                     DisplayHeight(display, i));
3960                         else
3961                                 new_region(&screens[i],
3962                                     ci->x, ci->y, ci->width, ci->height);
3963                 }
3964                 if (ci)
3965                         XRRFreeCrtcInfo(ci);
3966                 XRRFreeScreenResources(sr);
3967         } else
3968 #endif /* SWM_XRR_HAS_CRTC */
3969         {
3970                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3971                     DisplayHeight(display, i));
3972         }
3973 }
3974
3975 void
3976 screenchange(XEvent *e) {
3977         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3978         struct swm_region               *r;
3979         int                             i;
3980
3981         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3982
3983         if (!XRRUpdateConfiguration(e))
3984                 return;
3985
3986         /* silly event doesn't include the screen index */
3987         for (i = 0; i < ScreenCount(display); i++)
3988                 if (screens[i].root == xe->root)
3989                         break;
3990         if (i >= ScreenCount(display))
3991                 errx(1, "screenchange: screen not found\n");
3992
3993         /* brute force for now, just re-enumerate the regions */
3994         scan_xrandr(i);
3995
3996         /* add bars to all regions */
3997         for (i = 0; i < ScreenCount(display); i++)
3998                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3999                         bar_setup(r);
4000         stack();
4001 }
4002
4003 void
4004 setup_screens(void)
4005 {
4006         Window                  d1, d2, *wins = NULL;
4007         XWindowAttributes       wa;
4008         unsigned int            no;
4009         int                     i, j, k;
4010         int                     errorbase, major, minor;
4011         struct workspace        *ws;
4012         int                     ws_idx_atom;
4013         long                    state, manage;
4014
4015         if ((screens = calloc(ScreenCount(display),
4016              sizeof(struct swm_screen))) == NULL)
4017                 errx(1, "calloc: screens");
4018
4019         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4020
4021         /* initial Xrandr setup */
4022         xrandr_support = XRRQueryExtension(display,
4023             &xrandr_eventbase, &errorbase);
4024         if (xrandr_support)
4025                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4026                         xrandr_support = 0;
4027
4028         /* map physical screens */
4029         for (i = 0; i < ScreenCount(display); i++) {
4030                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4031                 screens[i].idx = i;
4032                 TAILQ_INIT(&screens[i].rl);
4033                 TAILQ_INIT(&screens[i].orl);
4034                 screens[i].root = RootWindow(display, i);
4035
4036                 /* set default colors */
4037                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4038                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4039                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4040                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4041                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4042
4043                 /* init all workspaces */
4044                 /* XXX these should be dynamically allocated too */
4045                 for (j = 0; j < SWM_WS_MAX; j++) {
4046                         ws = &screens[i].ws[j];
4047                         ws->idx = j;
4048                         ws->restack = 1;
4049                         ws->focus = NULL;
4050                         ws->r = NULL;
4051                         ws->old_r = NULL;
4052                         TAILQ_INIT(&ws->winlist);
4053
4054                         for (k = 0; layouts[k].l_stack != NULL; k++)
4055                                 if (layouts[k].l_config != NULL)
4056                                         layouts[k].l_config(ws,
4057                                             SWM_ARG_ID_STACKINIT);
4058                         ws->cur_layout = &layouts[0];
4059                 }
4060                 /* grab existing windows (before we build the bars)*/
4061                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4062                         continue;
4063
4064                 scan_xrandr(i);
4065
4066                 if (xrandr_support)
4067                         XRRSelectInput(display, screens[i].root,
4068                             RRScreenChangeNotifyMask);
4069
4070                 /* attach windows to a region */
4071                 /* normal windows */
4072                 for (j = 0; j < no; j++) {
4073                         XGetWindowAttributes(display, wins[j], &wa);
4074                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4075                             wa.override_redirect ||
4076                             XGetTransientForHint(display, wins[j], &d1))
4077                                 continue;
4078
4079                         state = getstate(wins[j]);
4080                         manage = state == NormalState || state == IconicState;
4081                         if (wa.map_state == IsViewable || manage)
4082                                 manage_window(wins[j]);
4083                 }
4084                 /* transient windows */
4085                 for (j = 0; j < no; j++) {
4086                         if (!XGetWindowAttributes(display, wins[j], &wa))
4087                                 continue;
4088
4089                         state = getstate(wins[j]);
4090                         manage = state == NormalState || state == IconicState;
4091                         if (XGetTransientForHint(display, wins[j], &d1) &&
4092                             manage)
4093                                 manage_window(wins[j]);
4094                 }
4095                 if (wins) {
4096                         XFree(wins);
4097                         wins = NULL;
4098                 }
4099         }
4100 }
4101 void
4102 setup_globals(void)
4103 {
4104         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4105             == NULL)
4106                 err(1, "setup_globals: strdup");
4107         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4108             == NULL)
4109                 err(1, "setup_globals: strdup");
4110         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4111             == NULL)
4112                 err(1, "setup_globals: strdup");
4113         if ((spawn_term[0] = strdup("xterm")) == NULL)
4114                 err(1, "setup_globals: strdup");
4115 }
4116
4117 void
4118 workaround(void)
4119 {
4120         int                     i;
4121         Atom                    netwmcheck, netwmname, utf8_string;
4122         Window                  root;
4123
4124         /* work around sun jdk bugs, code from wmname */
4125         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4126         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4127         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4128         for (i = 0; i < ScreenCount(display); i++) {
4129                 root = screens[i].root;
4130                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4131                     PropModeReplace, (unsigned char *)&root, 1);
4132                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4133                     PropModeReplace, "LG3D", strlen("LG3D"));
4134         }
4135 }
4136
4137 int
4138 main(int argc, char *argv[])
4139 {
4140         struct passwd           *pwd;
4141         struct swm_region       *r, *rr;
4142         struct ws_win           *winfocus = NULL;
4143         char                    conf[PATH_MAX], *cfile = NULL;
4144         struct stat             sb;
4145         XEvent                  e;
4146         int                     xfd, i;
4147         fd_set                  rd;
4148
4149         start_argv = argv;
4150         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4151             SWM_VERSION, cvstag);
4152         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4153                 warnx("no locale support");
4154
4155         if (!(display = XOpenDisplay(0)))
4156                 errx(1, "can not open display");
4157
4158         if (active_wm())
4159                 errx(1, "other wm running");
4160
4161         /* handle some signale */
4162         installsignal(SIGINT, "INT");
4163         installsignal(SIGHUP, "HUP");
4164         installsignal(SIGQUIT, "QUIT");
4165         installsignal(SIGTERM, "TERM");
4166         installsignal(SIGCHLD, "CHLD");
4167
4168         astate = XInternAtom(display, "WM_STATE", False);
4169         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4170         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4171
4172         /* look for local and global conf file */
4173         pwd = getpwuid(getuid());
4174         if (pwd == NULL)
4175                 errx(1, "invalid user %d", getuid());
4176
4177         setup_screens();
4178         setup_globals();
4179         setup_keys();
4180         setup_quirks();
4181         setup_spawn();
4182
4183         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4184         if (stat(conf, &sb) != -1) {
4185                 if (S_ISREG(sb.st_mode))
4186                         cfile = conf;
4187         } else {
4188                 /* try global conf file */
4189                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4190                 if (!stat(conf, &sb))
4191                         if (S_ISREG(sb.st_mode))
4192                                 cfile = conf;
4193         }
4194         if (cfile)
4195                 conf_load(cfile);
4196
4197         /* setup all bars */
4198         for (i = 0; i < ScreenCount(display); i++)
4199                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4200                         if (winfocus == NULL)
4201                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4202                         bar_setup(r);
4203                 }
4204
4205         /* set some values to work around bad programs */
4206         workaround();
4207
4208         grabkeys();
4209         stack();
4210
4211         xfd = ConnectionNumber(display);
4212         while (running) {
4213                 while (XPending(display)) {
4214                         XNextEvent(display, &e);
4215                         if (running == 0)
4216                                 goto done;
4217                         if (e.type < LASTEvent) {
4218                                 dumpevent(&e);
4219                                 if (handler[e.type])
4220                                         handler[e.type](&e);
4221                                 else
4222                                         DNPRINTF(SWM_D_EVENT,
4223                                             "win: %lu unknown event: %d\n",
4224                                             e.xany.window, e.type);
4225                         } else {
4226                                 switch (e.type - xrandr_eventbase) {
4227                                 case RRScreenChangeNotify:
4228                                         screenchange(&e);
4229                                         break;
4230                                 default:
4231                                         DNPRINTF(SWM_D_EVENT,
4232                                             "win: %lu unknown xrandr event: "
4233                                             "%d\n", e.xany.window, e.type);
4234                                         break;
4235                                 }
4236                         }
4237                 }
4238
4239                 /* if we are being restarted go focus on first window */
4240                 if (winfocus) {
4241                         rr = TAILQ_FIRST(&screens[0].rl);
4242                         /* move pointer to first screen if multi screen */
4243                         if (ScreenCount(display) > 1 || outputs > 1)
4244                                 XWarpPointer(display, None, rr->s[0].root,
4245                                     0, 0, 0, 0, rr->g.x,
4246                                     rr->g.y + bar_enabled ? bar_height : 0);
4247
4248                         focus_win(winfocus);
4249                         winfocus = NULL;
4250                         continue;
4251                 }
4252
4253                 FD_ZERO(&rd);
4254                 FD_SET(xfd, &rd);
4255                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4256                         if (errno != EINTR)
4257                                 DNPRINTF(SWM_D_MISC, "select failed");
4258                 if (running == 0)
4259                         goto done;
4260                 if (bar_alarm) {
4261                         bar_alarm = 0;
4262                         bar_update();
4263                 }
4264         }
4265 done:
4266         bar_extra_stop();
4267
4268         XCloseDisplay(display);
4269
4270         return (0);
4271 }