scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.9"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while (0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while (0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151 #define SWM_EV_PROLOGUE(x)      do { XGrabServer(x); } while (0)
 152 #define SWM_EV_EPILOGUE(x)      do { XUngrabServer(x); XFlush(x); } while (0)
 153
 154 #ifndef SWM_LIB
 155 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 156 #endif
 157
 158 char                    **start_argv;
 159 Atom                    astate;
 160 Atom                    aprot;
 161 Atom                    adelete;
 162 volatile sig_atomic_t   running = 1;
 163 int                     outputs = 0;
 164 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 165 int                     other_wm;
 166 int                     ss_enabled = 0;
 167 int                     xrandr_support;
 168 int                     xrandr_eventbase;
 169 int                     ignore_enter = 0;
 170 unsigned int            numlockmask = 0;
 171 Display                 *display;
 172
 173 int                     cycle_empty = 0;
 174 int                     cycle_visible = 0;
 175 int                     term_width = 0;
 176 int                     font_adjusted = 0;
 177 unsigned int            mod_key = MODKEY;
 178
 179 /* dialog windows */
 180 double                  dialog_ratio = .6;
 181 /* status bar */
 182 #define SWM_BAR_MAX     (256)
 183 char                    *bar_argv[] = { NULL, NULL };
 184 int                     bar_pipe[2];
 185 char                    bar_ext[SWM_BAR_MAX];
 186 char                    bar_vertext[SWM_BAR_MAX];
 187 int                     bar_version = 0;
 188 sig_atomic_t            bar_alarm = 0;
 189 int                     bar_delay = 30;
 190 int                     bar_enabled = 1;
 191 int                     bar_extra = 1;
 192 int                     bar_extra_running = 0;
 193 int                     bar_verbose = 1;
 194 int                     bar_height = 0;
 195 int                     stack_enabled = 1;
 196 int                     clock_enabled = 1;
 197 int                     title_name_enabled = 0;
 198 int                     title_class_enabled = 0;
 199 pid_t                   bar_pid;
 200 GC                      bar_gc;
 201 XGCValues               bar_gcv;
 202 int                     bar_fidx = 0;
 203 XFontStruct             *bar_fs;
 204 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 205 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 206
 207 #define SWM_MENU_FN     (2)
 208 #define SWM_MENU_NB     (4)
 209 #define SWM_MENU_NF     (6)
 210 #define SWM_MENU_SB     (8)
 211 #define SWM_MENU_SF     (10)
 212
 213 /* layout manager data */
 214 struct swm_geometry {
 215         int                     x;
 216         int                     y;
 217         int                     w;
 218         int                     h;
 219 };
 220
 221 struct swm_screen;
 222 struct workspace;
 223
 224 /* virtual "screens" */
 225 struct swm_region {
 226         TAILQ_ENTRY(swm_region) entry;
 227         struct swm_geometry     g;
 228         struct workspace        *ws;    /* current workspace on this region */
 229         struct swm_screen       *s;     /* screen idx */
 230         Window                  bar_window;
 231 };
 232 TAILQ_HEAD(swm_region_list, swm_region);
 233
 234 struct ws_win {
 235         TAILQ_ENTRY(ws_win)     entry;
 236         Window                  id;
 237         struct swm_geometry     g;
 238         int                     floating;
 239         int                     transient;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         unsigned long           quirks;
 246         struct workspace        *ws;    /* always valid */
 247         struct swm_screen       *s;     /* always valid, never changes */
 248         XWindowAttributes       wa;
 249         XSizeHints              sh;
 250         XClassHint              ch;
 251 };
 252 TAILQ_HEAD(ws_win_list, ws_win);
 253
 254 /* user/key callable function IDs */
 255 enum keyfuncid {
 256         kf_cycle_layout,
 257         kf_stack_reset,
 258         kf_master_shrink,
 259         kf_master_grow,
 260         kf_master_add,
 261         kf_master_del,
 262         kf_stack_inc,
 263         kf_stack_dec,
 264         kf_swap_main,
 265         kf_focus_next,
 266         kf_focus_prev,
 267         kf_swap_next,
 268         kf_swap_prev,
 269         kf_spawn_term,
 270         kf_spawn_menu,
 271         kf_quit,
 272         kf_restart,
 273         kf_focus_main,
 274         kf_ws_1,
 275         kf_ws_2,
 276         kf_ws_3,
 277         kf_ws_4,
 278         kf_ws_5,
 279         kf_ws_6,
 280         kf_ws_7,
 281         kf_ws_8,
 282         kf_ws_9,
 283         kf_ws_10,
 284         kf_ws_next,
 285         kf_ws_prev,
 286         kf_screen_next,
 287         kf_screen_prev,
 288         kf_mvws_1,
 289         kf_mvws_2,
 290         kf_mvws_3,
 291         kf_mvws_4,
 292         kf_mvws_5,
 293         kf_mvws_6,
 294         kf_mvws_7,
 295         kf_mvws_8,
 296         kf_mvws_9,
 297         kf_mvws_10,
 298         kf_bar_toggle,
 299         kf_wind_kill,
 300         kf_wind_del,
 301         kf_screenshot_all,
 302         kf_screenshot_wind,
 303         kf_float_toggle,
 304         kf_version,
 305         kf_spawn_lock,
 306         kf_spawn_initscr,
 307         kf_spawn_custom,
 308         kf_invalid
 309 };
 310
 311 /* layout handlers */
 312 void    stack(void);
 313 void    vertical_config(struct workspace *, int);
 314 void    vertical_stack(struct workspace *, struct swm_geometry *);
 315 void    horizontal_config(struct workspace *, int);
 316 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 317 void    max_stack(struct workspace *, struct swm_geometry *);
 318
 319 void    grabbuttons(struct ws_win *, int);
 320 void    new_region(struct swm_screen *, int, int, int, int);
 321
 322 struct layout {
 323         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 324         void            (*l_config)(struct workspace *, int);
 325         u_int32_t       flags;
 326 #define SWM_L_FOCUSPREV         (1<<0)
 327 #define SWM_L_MAPONFOCUS        (1<<1)
 328         char            *name;
 329 } layouts[] =  {
 330         /* stack,               configure */
 331         { vertical_stack,       vertical_config,        0,      "[|]" },
 332         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 333         { max_stack,            NULL,
 334           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 335         { NULL,                 NULL,                   0},
 336 };
 337
 338 #define SWM_H_SLICE             (32)
 339 #define SWM_V_SLICE             (32)
 340
 341 /* define work spaces */
 342 struct workspace {
 343         int                     idx;            /* workspace index */
 344         int                     restack;        /* restack on switch */
 345         struct layout           *cur_layout;    /* current layout handlers */
 346         struct ws_win           *focus;         /* may be NULL */
 347         struct ws_win           *focus_prev;    /* may be NULL */
 348         struct swm_region       *r;             /* may be NULL */
 349         struct swm_region       *old_r;         /* may be NULL */
 350         struct ws_win_list      winlist;        /* list of windows in ws */
 351
 352         /* stacker state */
 353         struct {
 354                                 int horizontal_msize;
 355                                 int horizontal_mwin;
 356                                 int horizontal_stacks;
 357                                 int vertical_msize;
 358                                 int vertical_mwin;
 359                                 int vertical_stacks;
 360         } l_state;
 361 };
 362
 363 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 364           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 365
 366 /* physical screen mapping */
 367 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 368 struct swm_screen {
 369         int                     idx;            /* screen index */
 370         struct swm_region_list  rl;     /* list of regions on this screen */
 371         struct swm_region_list  orl;    /* list of old regions */
 372         Window                  root;
 373         struct workspace        ws[SWM_WS_MAX];
 374
 375         /* colors */
 376         struct {
 377                 unsigned long   color;
 378                 char            *name;
 379         } c[SWM_S_COLOR_MAX];
 380 };
 381 struct swm_screen       *screens;
 382 int                     num_screens;
 383
 384 /* args to functions */
 385 union arg {
 386         int                     id;
 387 #define SWM_ARG_ID_FOCUSNEXT    (0)
 388 #define SWM_ARG_ID_FOCUSPREV    (1)
 389 #define SWM_ARG_ID_FOCUSMAIN    (2)
 390 #define SWM_ARG_ID_SWAPNEXT     (3)
 391 #define SWM_ARG_ID_SWAPPREV     (4)
 392 #define SWM_ARG_ID_SWAPMAIN     (5)
 393 #define SWM_ARG_ID_MASTERSHRINK (6)
 394 #define SWM_ARG_ID_MASTERGROW   (7)
 395 #define SWM_ARG_ID_MASTERADD    (8)
 396 #define SWM_ARG_ID_MASTERDEL    (9)
 397 #define SWM_ARG_ID_STACKRESET   (10)
 398 #define SWM_ARG_ID_STACKINIT    (11)
 399 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 400 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 401 #define SWM_ARG_ID_CYCLESC_UP   (14)
 402 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 403 #define SWM_ARG_ID_STACKINC     (16)
 404 #define SWM_ARG_ID_STACKDEC     (17)
 405 #define SWM_ARG_ID_SS_ALL       (0)
 406 #define SWM_ARG_ID_SS_WINDOW    (1)
 407 #define SWM_ARG_ID_DONTCENTER   (0)
 408 #define SWM_ARG_ID_CENTER       (1)
 409 #define SWM_ARG_ID_KILLWINDOW   (0)
 410 #define SWM_ARG_ID_DELETEWINDOW (1)
 411         char                    **argv;
 412 };
 413
 414 /* quirks */
 415 struct quirk {
 416         char                    *class;
 417         char                    *name;
 418         unsigned long           quirk;
 419 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 420 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 421 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 422 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 423 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 424 };
 425 int                             quirks_size = 0, quirks_length = 0;
 426 struct quirk                    *quirks = NULL;
 427
 428 /* events */
 429 #ifdef SWM_DEBUG
 430 void
 431 dumpevent(XEvent *e)
 432 {
 433         char                    *name = NULL;
 434
 435         switch (e->type) {
 436         case KeyPress:
 437                 name = "KeyPress";
 438                 break;
 439         case KeyRelease:
 440                 name = "KeyRelease";
 441                 break;
 442         case ButtonPress:
 443                 name = "ButtonPress";
 444                 break;
 445         case ButtonRelease:
 446                 name = "ButtonRelease";
 447                 break;
 448         case MotionNotify:
 449                 name = "MotionNotify";
 450                 break;
 451         case EnterNotify:
 452                 name = "EnterNotify";
 453                 break;
 454         case LeaveNotify:
 455                 name = "LeaveNotify";
 456                 break;
 457         case FocusIn:
 458                 name = "FocusIn";
 459                 break;
 460         case FocusOut:
 461                 name = "FocusOut";
 462                 break;
 463         case KeymapNotify:
 464                 name = "KeymapNotify";
 465                 break;
 466         case Expose:
 467                 name = "Expose";
 468                 break;
 469         case GraphicsExpose:
 470                 name = "GraphicsExpose";
 471                 break;
 472         case NoExpose:
 473                 name = "NoExpose";
 474                 break;
 475         case VisibilityNotify:
 476                 name = "VisibilityNotify";
 477                 break;
 478         case CreateNotify:
 479                 name = "CreateNotify";
 480                 break;
 481         case DestroyNotify:
 482                 name = "DestroyNotify";
 483                 break;
 484         case UnmapNotify:
 485                 name = "UnmapNotify";
 486                 break;
 487         case MapNotify:
 488                 name = "MapNotify";
 489                 break;
 490         case MapRequest:
 491                 name = "MapRequest";
 492                 break;
 493         case ReparentNotify:
 494                 name = "ReparentNotify";
 495                 break;
 496         case ConfigureNotify:
 497                 name = "ConfigureNotify";
 498                 break;
 499         case ConfigureRequest:
 500                 name = "ConfigureRequest";
 501                 break;
 502         case GravityNotify:
 503                 name = "GravityNotify";
 504                 break;
 505         case ResizeRequest:
 506                 name = "ResizeRequest";
 507                 break;
 508         case CirculateNotify:
 509                 name = "CirculateNotify";
 510                 break;
 511         case CirculateRequest:
 512                 name = "CirculateRequest";
 513                 break;
 514         case PropertyNotify:
 515                 name = "PropertyNotify";
 516                 break;
 517         case SelectionClear:
 518                 name = "SelectionClear";
 519                 break;
 520         case SelectionRequest:
 521                 name = "SelectionRequest";
 522                 break;
 523         case SelectionNotify:
 524                 name = "SelectionNotify";
 525                 break;
 526         case ColormapNotify:
 527                 name = "ColormapNotify";
 528                 break;
 529         case ClientMessage:
 530                 name = "ClientMessage";
 531                 break;
 532         case MappingNotify:
 533                 name = "MappingNotify";
 534                 break;
 535         }
 536
 537         if (name)
 538                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 539                     "remaining\n",
 540                     e->xany.window, name, e->type, QLength(display));
 541         else
 542                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 543                     "remaining\n",
 544                     e->xany.window, e->type, QLength(display));
 545 }
 546 #else
 547 #define dumpevent(e)
 548 #endif /* SWM_DEBUG */
 549
 550 void                    expose(XEvent *);
 551 void                    keypress(XEvent *);
 552 void                    buttonpress(XEvent *);
 553 void                    configurerequest(XEvent *);
 554 void                    configurenotify(XEvent *);
 555 void                    destroynotify(XEvent *);
 556 void                    enternotify(XEvent *);
 557 void                    focusin(XEvent *);
 558 void                    focusout(XEvent *);
 559 void                    mapnotify(XEvent *);
 560 void                    mappingnotify(XEvent *);
 561 void                    maprequest(XEvent *);
 562 void                    propertynotify(XEvent *);
 563 void                    unmapnotify(XEvent *);
 564 void                    visibilitynotify(XEvent *);
 565
 566 void                    (*handler[LASTEvent])(XEvent *) = {
 567                                 [Expose] = expose,
 568                                 [KeyPress] = keypress,
 569                                 [ButtonPress] = buttonpress,
 570                                 [ConfigureRequest] = configurerequest,
 571                                 [ConfigureNotify] = configurenotify,
 572                                 [DestroyNotify] = destroynotify,
 573                                 [EnterNotify] = enternotify,
 574                                 [FocusIn] = focusin,
 575                                 [FocusOut] = focusout,
 576                                 [MapNotify] = mapnotify,
 577                                 [MappingNotify] = mappingnotify,
 578                                 [MapRequest] = maprequest,
 579                                 [PropertyNotify] = propertynotify,
 580                                 [UnmapNotify] = unmapnotify,
 581                                 [VisibilityNotify] = visibilitynotify,
 582 };
 583
 584 void
 585 sighdlr(int sig)
 586 {
 587         pid_t                   pid;
 588
 589         switch (sig) {
 590         case SIGCHLD:
 591                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 592                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 593                         if (pid <= 0)
 594                                 break;
 595                 }
 596                 break;
 597         case SIGINT:
 598         case SIGTERM:
 599         case SIGHUP:
 600         case SIGQUIT:
 601                 running = 0;
 602                 break;
 603         }
 604 }
 605
 606 void
 607 installsignal(int sig, char *name)
 608 {
 609         struct sigaction        sa;
 610
 611         sa.sa_handler = sighdlr;
 612         sigemptyset(&sa.sa_mask);
 613         sa.sa_flags = 0;
 614         if (sigaction(sig, &sa, NULL) == -1)
 615                 err(1, "could not install %s handler", name);
 616 }
 617
 618 unsigned long
 619 name_to_color(char *colorname)
 620 {
 621         Colormap                cmap;
 622         Status                  status;
 623         XColor                  screen_def, exact_def;
 624         unsigned long           result = 0;
 625         char                    cname[32] = "#";
 626
 627         cmap = DefaultColormap(display, screens[0].idx);
 628         status = XAllocNamedColor(display, cmap, colorname,
 629             &screen_def, &exact_def);
 630         if (!status) {
 631                 strlcat(cname, colorname + 2, sizeof cname - 1);
 632                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 633                     &exact_def);
 634         }
 635         if (status)
 636                 result = screen_def.pixel;
 637         else
 638                 fprintf(stderr, "color '%s' not found.\n", colorname);
 639
 640         return (result);
 641 }
 642
 643 void
 644 setscreencolor(char *val, int i, int c)
 645 {
 646         if (i > 0 && i <= ScreenCount(display)) {
 647                 screens[i - 1].c[c].color = name_to_color(val);
 648                 free(screens[i - 1].c[c].name);
 649                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 650                         errx(1, "strdup");
 651         } else if (i == -1) {
 652                 for (i = 0; i < ScreenCount(display); i++) {
 653                         screens[i].c[c].color = name_to_color(val);
 654                         free(screens[i].c[c].name);
 655                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 656                                 errx(1, "strdup");
 657                 }
 658         } else
 659                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 660                     i, ScreenCount(display));
 661 }
 662
 663 void
 664 custom_region(char *val)
 665 {
 666         unsigned int                    sidx, x, y, w, h;
 667
 668         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 669                 errx(1, "invalid custom region, "
 670                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 671         if (sidx < 1 || sidx > ScreenCount(display))
 672                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 673                     sidx, ScreenCount(display));
 674         sidx--;
 675
 676         if (w < 1 || h < 1)
 677                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 678
 679         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 680             y < 0 || y > DisplayHeight(display, sidx) ||
 681             w + x > DisplayWidth(display, sidx) ||
 682             h + y > DisplayHeight(display, sidx))
 683                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 684                     "(%ux%u)\n", w, h, x, y,
 685                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 686
 687         new_region(&screens[sidx], x, y, w, h);
 688 }
 689
 690 void
 691 socket_setnonblock(int fd)
 692 {
 693         int                     flags;
 694
 695         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 696                 err(1, "fcntl F_GETFL");
 697         flags |= O_NONBLOCK;
 698         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 699                 err(1, "fcntl F_SETFL");
 700 }
 701
 702 void
 703 bar_print(struct swm_region *r, char *s)
 704 {
 705         XClearWindow(display, r->bar_window);
 706         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 707         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 708             strlen(s));
 709 }
 710
 711 void
 712 bar_extra_stop(void)
 713 {
 714         if (bar_pipe[0]) {
 715                 close(bar_pipe[0]);
 716                 bzero(bar_pipe, sizeof bar_pipe);
 717         }
 718         if (bar_pid) {
 719                 kill(bar_pid, SIGTERM);
 720                 bar_pid = 0;
 721         }
 722         strlcpy(bar_ext, "", sizeof bar_ext);
 723         bar_extra = 0;
 724 }
 725
 726 void
 727 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 728 {
 729         int                     do_class, do_name;
 730         Status                  status;
 731         XClassHint              *xch = NULL;
 732
 733         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 734             cur_focus != NULL) {
 735                 if ((xch = XAllocClassHint()) == NULL)
 736                         goto out;
 737                 status = XGetClassHint(display, cur_focus->id, xch);
 738                 if (status == BadWindow || status == BadAlloc)
 739                         goto out;
 740                 do_class = (title_class_enabled && xch->res_class != NULL);
 741                 do_name = (title_name_enabled && xch->res_name != NULL);
 742                 if (do_class)
 743                         strlcat(s, xch->res_class, sz);
 744                 if (do_class && do_name)
 745                         strlcat(s, ":", sz);
 746                 if (do_name)
 747                         strlcat(s, xch->res_name, sz);
 748                 strlcat(s, "    ", sz);
 749         }
 750 out:
 751         if (xch)
 752                 XFree(xch);
 753 }
 754
 755 void
 756 bar_update(void)
 757 {
 758         time_t                  tmt;
 759         struct tm               tm;
 760         struct swm_region       *r;
 761         int                     i, x;
 762         size_t                  len;
 763         char                    s[SWM_BAR_MAX];
 764         char                    loc[SWM_BAR_MAX];
 765         char                    *b;
 766         char                    *stack = "";
 767
 768         if (bar_enabled == 0)
 769                 return;
 770         if (bar_extra && bar_extra_running) {
 771                 /* ignore short reads; it'll correct itself */
 772                 while ((b = fgetln(stdin, &len)) != NULL)
 773                         if (b && b[len - 1] == '\n') {
 774                                 b[len - 1] = '\0';
 775                                 strlcpy(bar_ext, b, sizeof bar_ext);
 776                         }
 777                 if (b == NULL && errno != EAGAIN) {
 778                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 779                             errno, strerror(errno));
 780                         bar_extra_stop();
 781                 }
 782         } else
 783                 strlcpy(bar_ext, "", sizeof bar_ext);
 784
 785         if (clock_enabled == 0)
 786                 strlcpy(s, "", sizeof s);
 787         else {
 788                 time(&tmt);
 789                 localtime_r(&tmt, &tm);
 790                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 791         }
 792
 793         for (i = 0; i < ScreenCount(display); i++) {
 794                 x = 1;
 795                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 796                         if (r && r->ws)
 797                                 bar_class_name(s, sizeof s, r->ws->focus);
 798
 799                         if (stack_enabled)
 800                                 stack = r->ws->cur_layout->name;
 801
 802                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 803                             x++, r->ws->idx + 1, stack, s, bar_ext,
 804                             bar_vertext);
 805                         bar_print(r, loc);
 806                 }
 807         }
 808         alarm(bar_delay);
 809 }
 810
 811 void
 812 bar_signal(int sig)
 813 {
 814         bar_alarm = 1;
 815 }
 816
 817 void
 818 bar_toggle(struct swm_region *r, union arg *args)
 819 {
 820         struct swm_region       *tmpr;
 821         int                     i, j, sc = ScreenCount(display);
 822
 823         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 824
 825         if (bar_enabled)
 826                 for (i = 0; i < sc; i++)
 827                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 828                                 XUnmapWindow(display, tmpr->bar_window);
 829         else
 830                 for (i = 0; i < sc; i++)
 831                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 832                                 XMapRaised(display, tmpr->bar_window);
 833
 834         bar_enabled = !bar_enabled;
 835         for (i = 0; i < sc; i++)
 836                 for (j = 0; j < SWM_WS_MAX; j++)
 837                         screens[i].ws[j].restack = 1;
 838
 839         stack();
 840         /* must be after stack */
 841         bar_update();
 842 }
 843
 844 void
 845 bar_refresh(void)
 846 {
 847         XSetWindowAttributes    wa;
 848         struct swm_region       *r;
 849         int                     i;
 850
 851         /* do this here because the conf file is in memory */
 852         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 853                 /* launch external status app */
 854                 bar_extra_running = 1;
 855                 if (pipe(bar_pipe) == -1)
 856                         err(1, "pipe error");
 857                 socket_setnonblock(bar_pipe[0]);
 858                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 859                 if (dup2(bar_pipe[0], 0) == -1)
 860                         errx(1, "dup2");
 861                 if (dup2(bar_pipe[1], 1) == -1)
 862                         errx(1, "dup2");
 863                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 864                         err(1, "could not disable SIGPIPE");
 865                 switch (bar_pid = fork()) {
 866                 case -1:
 867                         err(1, "cannot fork");
 868                         break;
 869                 case 0: /* child */
 870                         close(bar_pipe[0]);
 871                         execvp(bar_argv[0], bar_argv);
 872                         err(1, "%s external app failed", bar_argv[0]);
 873                         break;
 874                 default: /* parent */
 875                         close(bar_pipe[1]);
 876                         break;
 877                 }
 878         }
 879
 880         bzero(&wa, sizeof wa);
 881         for (i = 0; i < ScreenCount(display); i++)
 882                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 883                         wa.border_pixel =
 884                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 885                         wa.background_pixel =
 886                             screens[i].c[SWM_S_COLOR_BAR].color;
 887                         XChangeWindowAttributes(display, r->bar_window,
 888                             CWBackPixel | CWBorderPixel, &wa);
 889                 }
 890         bar_update();
 891 }
 892
 893 void
 894 bar_setup(struct swm_region *r)
 895 {
 896         int                     i;
 897
 898         for (i = 0; bar_fonts[i] != NULL; i++) {
 899                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 900                 if (bar_fs) {
 901                         bar_fidx = i;
 902                         break;
 903                 }
 904         }
 905         if (bar_fonts[i] == NULL)
 906                         errx(1, "couldn't load font");
 907         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 908
 909         r->bar_window = XCreateSimpleWindow(display,
 910             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 911             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 912             r->s->c[SWM_S_COLOR_BAR].color);
 913         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 914         XSetFont(display, bar_gc, bar_fs->fid);
 915         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 916         if (bar_enabled)
 917                 XMapRaised(display, r->bar_window);
 918         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 919
 920         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 921                 err(1, "could not install bar_signal");
 922         bar_refresh();
 923 }
 924
 925 Bool
 926 set_win_notify_cb(Display *d, XEvent *e, char *arg)
 927 {
 928         struct ws_win           *win = (struct ws_win *)arg;
 929
 930         if (win && win->id == e->xany.window && e->xany.type == PropertyNotify)
 931                         return (True);
 932         return (False);
 933 }
 934
 935 void
 936 set_win_state(struct ws_win *win, long state)
 937 {
 938         long                    data[] = {state, None};
 939         XEvent                  ev;
 940
 941         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 942
 943         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 944             (unsigned char *)data, 2);
 945
 946         if (state != WithdrawnState)
 947                 XIfEvent(display, &ev, set_win_notify_cb, (char *)win);
 948 }
 949
 950 long
 951 getstate(Window w)
 952 {
 953         int                     format, status;
 954         long                    result = -1;
 955         unsigned char           *p = NULL;
 956         unsigned long           n, extra;
 957         Atom                    real;
 958
 959         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 960             &real, &format, &n, &extra, (unsigned char **)&p);
 961         if (status != Success)
 962                 return (-1);
 963         if (n != 0)
 964                 result = *((long *)p);
 965         XFree(p);
 966         return (result);
 967 }
 968
 969 void
 970 version(struct swm_region *r, union arg *args)
 971 {
 972         bar_version = !bar_version;
 973         if (bar_version)
 974                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 975                     SWM_VERSION, cvstag);
 976         else
 977                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 978         bar_update();
 979 }
 980
 981 void
 982 client_msg(struct ws_win *win, Atom a)
 983 {
 984         XClientMessageEvent     cm;
 985
 986         bzero(&cm, sizeof cm);
 987         cm.type = ClientMessage;
 988         cm.window = win->id;
 989         cm.message_type = aprot;
 990         cm.format = 32;
 991         cm.data.l[0] = a;
 992         cm.data.l[1] = CurrentTime;
 993         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 994 }
 995
 996 void
 997 config_win(struct ws_win *win)
 998 {
 999         XConfigureEvent         ce;
1000
1001         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
1002             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
1003         ce.type = ConfigureNotify;
1004         ce.display = display;
1005         ce.event = win->id;
1006         ce.window = win->id;
1007         ce.x = win->g.x;
1008         ce.y = win->g.y;
1009         ce.width = win->g.w;
1010         ce.height = win->g.h;
1011         ce.border_width = 1; /* XXX store this! */
1012         ce.above = None;
1013         ce.override_redirect = False;
1014         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
1015 }
1016
1017 int
1018 count_win(struct workspace *ws, int count_transient)
1019 {
1020         struct ws_win           *win;
1021         int                     count = 0;
1022
1023         TAILQ_FOREACH(win, &ws->winlist, entry) {
1024                 if (count_transient == 0 && win->floating)
1025                         continue;
1026                 if (count_transient == 0 && win->transient)
1027                         continue;
1028                 count++;
1029         }
1030         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1031
1032         return (count);
1033 }
1034
1035 void
1036 quit(struct swm_region *r, union arg *args)
1037 {
1038         DNPRINTF(SWM_D_MISC, "quit\n");
1039         running = 0;
1040 }
1041
1042 Bool
1043 unmap_window_cb(Display *d, XEvent *e, char *arg)
1044 {
1045         struct ws_win           *win = (struct ws_win *)arg;
1046
1047         if (win && win->id == e->xany.window && e->xany.type == UnmapNotify)
1048                         return (True);
1049         return (False);
1050 }
1051
1052 void
1053 unmap_window(struct ws_win *win)
1054 {
1055         XEvent                  ev;
1056
1057         if (win == NULL)
1058                 return;
1059
1060         set_win_state(win, IconicState);
1061         XUnmapWindow(display, win->id);
1062
1063         XIfEvent(display, &ev, unmap_window_cb, (char *)win);
1064 }
1065
1066 void
1067 unmap_all(void)
1068 {
1069         struct ws_win           *win;
1070         int                     i, j;
1071
1072         for (i = 0; i < ScreenCount(display); i++)
1073                 for (j = 0; j < SWM_WS_MAX; j++)
1074                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1075                                 unmap_window(win);
1076 }
1077
1078 void
1079 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1080 {
1081         XKeyEvent event;
1082
1083         event.display = display;        /* Ignored, but what the hell */
1084         event.window = win->id;
1085         event.root = win->s->root;
1086         event.subwindow = None;
1087         event.time = CurrentTime;
1088         event.x = win->g.x;
1089         event.y = win->g.y;
1090         event.x_root = 1;
1091         event.y_root = 1;
1092         event.same_screen = True;
1093         event.keycode = XKeysymToKeycode(display, keysym);
1094         event.state = modifiers;
1095
1096         event.type = KeyPress;
1097         XSendEvent(event.display, event.window, True,
1098             KeyPressMask, (XEvent *)&event);
1099
1100         event.type = KeyRelease;
1101         XSendEvent(event.display, event.window, True,
1102             KeyPressMask, (XEvent *)&event);
1103
1104 }
1105
1106 void
1107 restart(struct swm_region *r, union arg *args)
1108 {
1109         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1110
1111         /* disable alarm because the following code may not be interrupted */
1112         alarm(0);
1113         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1114                 errx(1, "can't disable alarm");
1115
1116         bar_extra_stop();
1117         bar_extra = 1;
1118         unmap_all();
1119         XCloseDisplay(display);
1120         execvp(start_argv[0], start_argv);
1121         fprintf(stderr, "execvp failed\n");
1122         perror(" failed");
1123         quit(NULL, NULL);
1124 }
1125
1126 struct swm_region *
1127 root_to_region(Window root)
1128 {
1129         struct swm_region       *r = NULL;
1130         Window                  rr, cr;
1131         int                     i, x, y, wx, wy;
1132         unsigned int            mask;
1133
1134         for (i = 0; i < ScreenCount(display); i++)
1135                 if (screens[i].root == root)
1136                         break;
1137
1138         if (XQueryPointer(display, screens[i].root,
1139             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1140                 /* choose a region based on pointer location */
1141                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1142                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1143                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1144                                 break;
1145         }
1146
1147         if (r == NULL)
1148                 r = TAILQ_FIRST(&screens[i].rl);
1149
1150         return (r);
1151 }
1152
1153 struct ws_win *
1154 find_window(Window id)
1155 {
1156         struct ws_win           *win;
1157         int                     i, j;
1158
1159         for (i = 0; i < ScreenCount(display); i++)
1160                 for (j = 0; j < SWM_WS_MAX; j++)
1161                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1162                                 if (id == win->id)
1163                                         return (win);
1164         return (NULL);
1165 }
1166
1167 void
1168 spawn(struct swm_region *r, union arg *args)
1169 {
1170         char                    *ret;
1171         int                     si;
1172
1173         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1174         /*
1175          * The double-fork construct avoids zombie processes and keeps the code
1176          * clean from stupid signal handlers.
1177          */
1178         if (fork() == 0) {
1179                 if (fork() == 0) {
1180                         if (display)
1181                                 close(ConnectionNumber(display));
1182                         setenv("LD_PRELOAD", SWM_LIB, 1);
1183                         if (asprintf(&ret, "%d", r->ws->idx)) {
1184                                 setenv("_SWM_WS", ret, 1);
1185                                 free(ret);
1186                         }
1187                         if (asprintf(&ret, "%d", getpid())) {
1188                                 setenv("_SWM_PID", ret, 1);
1189                                 free(ret);
1190                         }
1191                         setsid();
1192                         /* kill stdin, mplayer, ssh-add etc. need that */
1193                         si = open("/dev/null", O_RDONLY, 0);
1194                         if (si == -1)
1195                                 err(1, "open /dev/null");
1196                         if (dup2(si, 0) == -1)
1197                                 err(1, "dup2 /dev/null");
1198                         execvp(args->argv[0], args->argv);
1199                         fprintf(stderr, "execvp failed\n");
1200                         perror(" failed");
1201                 }
1202                 exit(0);
1203         }
1204         wait(0);
1205 }
1206
1207 void
1208 spawnterm(struct swm_region *r, union arg *args)
1209 {
1210         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1211
1212         if (term_width)
1213                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1214         spawn(r, args);
1215 }
1216
1217 void
1218 unfocus_win(struct ws_win *win)
1219 {
1220         if (win == NULL)
1221                 return;
1222
1223         if (win->ws->r == NULL)
1224                 return;
1225
1226         if (win->ws->focus == win) {
1227                 win->ws->focus = NULL;
1228                 win->ws->focus_prev = win;
1229         }
1230
1231         grabbuttons(win, 0);
1232         XSetWindowBorder(display, win->id,
1233             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1234 }
1235
1236 void
1237 unfocus_all(void)
1238 {
1239         struct ws_win           *win;
1240         int                     i, j;
1241
1242         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1243
1244         for (i = 0; i < ScreenCount(display); i++)
1245                 for (j = 0; j < SWM_WS_MAX; j++)
1246                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1247                                 unfocus_win(win);
1248 }
1249
1250 void
1251 focus_win(struct ws_win *win)
1252 {
1253         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1254
1255         if (win == NULL)
1256                 return;
1257
1258         /* use big hammer to make sure it works under all use cases */
1259         unfocus_all();
1260         win->ws->focus = win;
1261
1262         if (win->ws->r != NULL) {
1263                 XSetWindowBorder(display, win->id,
1264                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1265                 grabbuttons(win, 1);
1266                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1267                         XMapRaised(display, win->id);
1268                 XSetInputFocus(display, win->id,
1269                     RevertToPointerRoot, CurrentTime);
1270         }
1271 }
1272
1273 void
1274 switchws(struct swm_region *r, union arg *args)
1275 {
1276         int                     wsid = args->id;
1277         struct swm_region       *this_r, *other_r;
1278         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1279         struct workspace        *new_ws, *old_ws;
1280
1281         this_r = r;
1282         old_ws = this_r->ws;
1283         new_ws = &this_r->s->ws[wsid];
1284
1285         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1286             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1287             old_ws->idx, wsid);
1288
1289         if (new_ws == old_ws)
1290                 return;
1291
1292         /* get focus window */
1293         if (new_ws->focus)
1294                 winfocus = new_ws->focus;
1295         else if (new_ws->focus_prev)
1296                 winfocus = new_ws->focus_prev;
1297         else
1298                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1299
1300         other_r = new_ws->r;
1301         if (other_r == NULL) {
1302                 /* if the other workspace is hidden, switch windows */
1303                 if (old_ws->r != NULL)
1304                         old_ws->old_r = old_ws->r;
1305                 old_ws->r = NULL;
1306                 old_ws->restack = 1;
1307
1308                 /*
1309                  * Map new windows first if they were here before
1310                  * to minimize ugly blinking.
1311                  */
1312                 if (new_ws->old_r == this_r)
1313                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1314                                 if (!(win->ws->cur_layout->flags &
1315                                     SWM_L_MAPONFOCUS))
1316                                         XMapRaised(display, win->id);
1317
1318                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1319                         unmap_window(win);
1320         } else {
1321                 other_r->ws = old_ws;
1322                 old_ws->r = other_r;
1323         }
1324         this_r->ws = new_ws;
1325         new_ws->r = this_r;
1326
1327         ignore_enter = 1;
1328         stack();
1329         if (winfocus) {
1330                 /* make sure we see the parent window */
1331                 if (winfocus->transient) {
1332                         parent = find_window(winfocus->transient);
1333                         if (parent)
1334                                 focus_win(parent);
1335                 }
1336
1337                 focus_win(winfocus);
1338         }
1339         ignore_enter = 0;
1340         bar_update();
1341 }
1342
1343 void
1344 cyclews(struct swm_region *r, union arg *args)
1345 {
1346         union                   arg a;
1347         struct swm_screen       *s = r->s;
1348
1349         DNPRINTF(SWM_D_WS, "cyclews id %d "
1350             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1351             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1352
1353         a.id = r->ws->idx;
1354         do {
1355                 switch (args->id) {
1356                 case SWM_ARG_ID_CYCLEWS_UP:
1357                         if (a.id < SWM_WS_MAX - 1)
1358                                 a.id++;
1359                         else
1360                                 a.id = 0;
1361                         break;
1362                 case SWM_ARG_ID_CYCLEWS_DOWN:
1363                         if (a.id > 0)
1364                                 a.id--;
1365                         else
1366                                 a.id = SWM_WS_MAX - 1;
1367                         break;
1368                 default:
1369                         return;
1370                 };
1371
1372                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1373                         continue;
1374                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1375                         continue;
1376
1377                 switchws(r, &a);
1378         } while (a.id != r->ws->idx);
1379 }
1380
1381 void
1382 cyclescr(struct swm_region *r, union arg *args)
1383 {
1384         struct swm_region       *rr = NULL;
1385         struct workspace        *ws = NULL;
1386         struct ws_win           *winfocus = NULL;
1387         int                     i, x, y;
1388
1389         /* do nothing if we don't have more than one screen */
1390         if (!(ScreenCount(display) > 1 || outputs > 1))
1391                 return;
1392
1393         i = r->s->idx;
1394         switch (args->id) {
1395         case SWM_ARG_ID_CYCLESC_UP:
1396                 rr = TAILQ_NEXT(r, entry);
1397                 if (rr == NULL)
1398                         rr = TAILQ_FIRST(&screens[i].rl);
1399                 break;
1400         case SWM_ARG_ID_CYCLESC_DOWN:
1401                 rr = TAILQ_PREV(r, swm_region_list, entry);
1402                 if (rr == NULL)
1403                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1404                 break;
1405         default:
1406                 return;
1407         };
1408         if (rr == NULL)
1409                 return;
1410
1411         ws = rr->ws;
1412         winfocus = ws->focus;
1413         if (winfocus == NULL)
1414                 winfocus = ws->focus_prev;
1415         if (winfocus) {
1416                 /* use window coordinates */
1417                 x = winfocus->g.x + 1;
1418                 y = winfocus->g.y + 1;
1419         } else {
1420                 /* use region coordinates */
1421                 x = rr->g.x + 1;
1422                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1423         }
1424
1425         unfocus_all();
1426         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1427         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1428
1429         focus_win(winfocus);
1430 }
1431
1432 void
1433 swapwin(struct swm_region *r, union arg *args)
1434 {
1435         struct ws_win           *target, *source;
1436         struct ws_win           *cur_focus;
1437         struct ws_win_list      *wl;
1438
1439
1440         DNPRINTF(SWM_D_WS, "swapwin id %d "
1441             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1442             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1443
1444         cur_focus = r->ws->focus;
1445         if (cur_focus == NULL)
1446                 return;
1447
1448         source = cur_focus;
1449         wl = &source->ws->winlist;
1450
1451         switch (args->id) {
1452         case SWM_ARG_ID_SWAPPREV:
1453                 target = TAILQ_PREV(source, ws_win_list, entry);
1454                 TAILQ_REMOVE(wl, cur_focus, entry);
1455                 if (target == NULL)
1456                         TAILQ_INSERT_TAIL(wl, source, entry);
1457                 else
1458                         TAILQ_INSERT_BEFORE(target, source, entry);
1459                 break;
1460         case SWM_ARG_ID_SWAPNEXT:
1461                 target = TAILQ_NEXT(source, entry);
1462                 TAILQ_REMOVE(wl, source, entry);
1463                 if (target == NULL)
1464                         TAILQ_INSERT_HEAD(wl, source, entry);
1465                 else
1466                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1467                 break;
1468         case SWM_ARG_ID_SWAPMAIN:
1469                 target = TAILQ_FIRST(wl);
1470                 if (target == source) {
1471                         if (source->ws->focus_prev != NULL &&
1472                             source->ws->focus_prev != target)
1473
1474                                 source = source->ws->focus_prev;
1475                         else
1476                                 return;
1477                 }
1478                 source->ws->focus_prev = target;
1479                 TAILQ_REMOVE(wl, target, entry);
1480                 TAILQ_INSERT_BEFORE(source, target, entry);
1481                 TAILQ_REMOVE(wl, source, entry);
1482                 TAILQ_INSERT_HEAD(wl, source, entry);
1483                 break;
1484         default:
1485                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1486                 return;
1487         }
1488
1489         ignore_enter = 1;
1490         stack();
1491 }
1492
1493 void
1494 focus(struct swm_region *r, union arg *args)
1495 {
1496         struct ws_win           *winfocus, *winlostfocus;
1497         struct ws_win_list      *wl;
1498         struct ws_win           *cur_focus;
1499
1500         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1501
1502         cur_focus = r->ws->focus;
1503         if (cur_focus == NULL)
1504                 return;
1505
1506         wl = &cur_focus->ws->winlist;
1507
1508         winlostfocus = cur_focus;
1509
1510         switch (args->id) {
1511         case SWM_ARG_ID_FOCUSPREV:
1512                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1513                 if (winfocus == NULL)
1514                         winfocus = TAILQ_LAST(wl, ws_win_list);
1515                 break;
1516
1517         case SWM_ARG_ID_FOCUSNEXT:
1518                 winfocus = TAILQ_NEXT(cur_focus, entry);
1519                 if (winfocus == NULL)
1520                         winfocus = TAILQ_FIRST(wl);
1521                 break;
1522
1523         case SWM_ARG_ID_FOCUSMAIN:
1524                 winfocus = TAILQ_FIRST(wl);
1525                 if (winfocus == cur_focus)
1526                         winfocus = cur_focus->ws->focus_prev;
1527                 if (winfocus == NULL)
1528                         return;
1529                 break;
1530
1531         default:
1532                 return;
1533         }
1534
1535         if (winfocus == winlostfocus || winfocus == NULL)
1536                 return;
1537
1538         focus_win(winfocus);
1539 }
1540
1541 void
1542 cycle_layout(struct swm_region *r, union arg *args)
1543 {
1544         struct workspace        *ws = r->ws;
1545         struct ws_win           *winfocus, *parent = NULL;
1546
1547         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1548
1549         winfocus = ws->focus;
1550
1551         ws->cur_layout++;
1552         if (ws->cur_layout->l_stack == NULL)
1553                 ws->cur_layout = &layouts[0];
1554
1555         ignore_enter = 1;
1556         stack();
1557         /* make sure we see the parent window */
1558         if (winfocus) {
1559                 if (winfocus->transient)
1560                         parent = find_window(winfocus->transient);
1561                 if (parent)
1562                         focus_win(parent);
1563                 focus_win(winfocus);
1564         }
1565         ignore_enter = 0;
1566 }
1567
1568 void
1569 stack_config(struct swm_region *r, union arg *args)
1570 {
1571         struct workspace        *ws = r->ws;
1572
1573         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1574             args->id, ws->idx);
1575
1576         if (ws->cur_layout->l_config != NULL)
1577                 ws->cur_layout->l_config(ws, args->id);
1578
1579         if (args->id != SWM_ARG_ID_STACKINIT);
1580                 stack();
1581 }
1582
1583 void
1584 stack(void) {
1585         struct swm_geometry     g;
1586         struct swm_region       *r;
1587         int                     i, j;
1588
1589         DNPRINTF(SWM_D_STACK, "stack\n");
1590
1591         for (i = 0; i < ScreenCount(display); i++) {
1592                 j = 0;
1593                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1594                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1595                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1596
1597                         /* start with screen geometry, adjust for bar */
1598                         g = r->g;
1599                         g.w -= 2;
1600                         g.h -= 2;
1601                         if (bar_enabled) {
1602                                 g.y += bar_height;
1603                                 g.h -= bar_height;
1604                         }
1605
1606                         r->ws->restack = 0;
1607                         r->ws->cur_layout->l_stack(r->ws, &g);
1608                 }
1609         }
1610         if (font_adjusted)
1611                 font_adjusted--;
1612 }
1613
1614 void
1615 stack_floater(struct ws_win *win, struct swm_region *r)
1616 {
1617         unsigned int            mask;
1618         XWindowChanges          wc;
1619
1620         if (win == NULL)
1621                 return;
1622
1623         bzero(&wc, sizeof wc);
1624         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1625         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1626             (win->g.h == HEIGHT(r)))
1627                 wc.border_width = 0;
1628         else
1629                 wc.border_width = 1;
1630         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1631                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1632                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1633         }
1634         wc.width = win->g.w;
1635         wc.height = win->g.h;
1636         if (win->manual) {
1637                 wc.x = win->g.x;
1638                 wc.y = win->g.y;
1639         } else {
1640                 wc.x = (WIDTH(r) - win->g.w) / 2;
1641                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1642         }
1643
1644         /* adjust for region */
1645         wc.x += r->g.x;
1646         wc.y += r->g.y;
1647
1648         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1649             win->id, wc.x, wc.y, wc.width, wc.height);
1650
1651         XConfigureWindow(display, win->id, mask, &wc);
1652 }
1653
1654 /*
1655  * Send keystrokes to terminal to decrease/increase the font size as the
1656  * window size changes.
1657  */
1658 void
1659 adjust_font(struct ws_win *win)
1660 {
1661         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1662             win->floating || win->transient)
1663                 return;
1664
1665         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1666             win->g.w / win->sh.width_inc < term_width &&
1667             win->font_steps < SWM_MAX_FONT_STEPS) {
1668                 win->font_size_boundary[win->font_steps] =
1669                     (win->sh.width_inc * term_width) + win->sh.base_width;
1670                 win->font_steps++;
1671                 font_adjusted++;
1672                 win->last_inc = win->sh.width_inc;
1673                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1674         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1675             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1676                 win->font_steps--;
1677                 font_adjusted++;
1678                 win->last_inc = win->sh.width_inc;
1679                 fake_keypress(win, XK_KP_Add, ShiftMask);
1680         }
1681 }
1682
1683 #define SWAPXY(g)       do {                            \
1684         int tmp;                                        \
1685         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1686         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1687 } while (0)
1688 void
1689 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1690 {
1691         XWindowChanges          wc;
1692         struct swm_geometry     win_g, r_g = *g;
1693         struct ws_win           *win;
1694         int                     i, j, s, stacks;
1695         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1696         int                     hrh, extra = 0, h_slice, last_h = 0;
1697         int                     split, colno, winno, mwin, msize, mscale;
1698         int                     remain, missing, v_slice;
1699         unsigned int            mask;
1700
1701         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1702             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1703
1704         winno = count_win(ws, 0);
1705         if (winno == 0 && count_win(ws, 1) == 0)
1706                 return;
1707
1708         TAILQ_FOREACH(win, &ws->winlist, entry)
1709                 if (win->transient == 0 && win->floating == 0)
1710                         break;
1711
1712         if (win == NULL)
1713                 goto notiles;
1714
1715         if (rot) {
1716                 w_inc = win->sh.width_inc;
1717                 w_base = win->sh.base_width;
1718                 mwin = ws->l_state.horizontal_mwin;
1719                 mscale = ws->l_state.horizontal_msize;
1720                 stacks = ws->l_state.horizontal_stacks;
1721                 SWAPXY(&r_g);
1722         } else {
1723                 w_inc = win->sh.height_inc;
1724                 w_base = win->sh.base_height;
1725                 mwin = ws->l_state.vertical_mwin;
1726                 mscale = ws->l_state.vertical_msize;
1727                 stacks = ws->l_state.vertical_stacks;
1728         }
1729         win_g = r_g;
1730
1731         if (stacks > winno - mwin)
1732                 stacks = winno - mwin;
1733         if (stacks < 1)
1734                 stacks = 1;
1735
1736         h_slice = r_g.h / SWM_H_SLICE;
1737         if (mwin && winno > mwin) {
1738                 v_slice = r_g.w / SWM_V_SLICE;
1739
1740                 split = mwin;
1741                 colno = split;
1742                 win_g.w = v_slice * mscale;
1743
1744                 if (w_inc > 1 && w_inc < v_slice) {
1745                         /* adjust for window's requested size increment */
1746                         remain = (win_g.w - w_base) % w_inc;
1747                         missing = w_inc - remain;
1748                         win_g.w -= remain;
1749                         extra += remain;
1750                 }
1751
1752                 msize = win_g.w;
1753                 if (flip)
1754                         win_g.x += r_g.w - msize;
1755         } else {
1756                 msize = -2;
1757                 colno = split = winno / stacks;
1758                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1759         }
1760         hrh = r_g.h / colno;
1761         extra = r_g.h - (colno * hrh);
1762         win_g.h = hrh - 2;
1763
1764         /*  stack all the tiled windows */
1765         i = j = 0, s = stacks;
1766         TAILQ_FOREACH(win, &ws->winlist, entry) {
1767                 if (win->transient != 0 || win->floating != 0)
1768                         continue;
1769
1770                 if (split && i == split) {
1771                         colno = (winno - mwin) / stacks;
1772                         if (s <= (winno - mwin) % stacks)
1773                                 colno++;
1774                         split = split + colno;
1775                         hrh = (r_g.h / colno);
1776                         extra = r_g.h - (colno * hrh);
1777                         if (flip)
1778                                 win_g.x = r_g.x;
1779                         else
1780                                 win_g.x += win_g.w + 2;
1781                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1782                         if (s == 1)
1783                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1784                                     stacks;
1785                         s--;
1786                         j = 0;
1787                 }
1788                 win_g.h = hrh - 2;
1789                 if (rot) {
1790                         h_inc = win->sh.width_inc;
1791                         h_base = win->sh.base_width;
1792                 } else {
1793                         h_inc = win->sh.height_inc;
1794                         h_base = win->sh.base_height;
1795                 }
1796                 if (j == colno - 1) {
1797                         win_g.h = hrh + extra;
1798                 } else if (h_inc > 1 && h_inc < h_slice) {
1799                         /* adjust for window's requested size increment */
1800                         remain = (win_g.h - h_base) % h_inc;
1801                         missing = h_inc - remain;
1802
1803                         if (missing <= extra || j == 0) {
1804                                 extra -= missing;
1805                                 win_g.h += missing;
1806                         } else {
1807                                 win_g.h -= remain;
1808                                 extra += remain;
1809                         }
1810                 }
1811
1812                 if (j == 0)
1813                         win_g.y = r_g.y;
1814                 else
1815                         win_g.y += last_h + 2;
1816
1817                 bzero(&wc, sizeof wc);
1818                 wc.border_width = 1;
1819                 if (rot) {
1820                         win->g.x = wc.x = win_g.y;
1821                         win->g.y = wc.y = win_g.x;
1822                         win->g.w = wc.width = win_g.h;
1823                         win->g.h = wc.height = win_g.w;
1824                 } else {
1825                         win->g.x = wc.x = win_g.x;
1826                         win->g.y = wc.y = win_g.y;
1827                         win->g.w = wc.width = win_g.w;
1828                         win->g.h = wc.height = win_g.h;
1829                 }
1830                 adjust_font(win);
1831                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1832                 XConfigureWindow(display, win->id, mask, &wc);
1833                 XMapRaised(display, win->id);
1834
1835                 last_h = win_g.h;
1836                 i++;
1837                 j++;
1838         }
1839
1840  notiles:
1841         /* now, stack all the floaters and transients */
1842         TAILQ_FOREACH(win, &ws->winlist, entry) {
1843                 if (win->transient == 0 && win->floating == 0)
1844                         continue;
1845
1846                 stack_floater(win, ws->r);
1847                 XMapRaised(display, win->id);
1848         }
1849 }
1850
1851 void
1852 vertical_config(struct workspace *ws, int id)
1853 {
1854         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1855
1856         switch (id) {
1857         case SWM_ARG_ID_STACKRESET:
1858         case SWM_ARG_ID_STACKINIT:
1859                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1860                 ws->l_state.vertical_mwin = 1;
1861                 ws->l_state.vertical_stacks = 1;
1862                 break;
1863         case SWM_ARG_ID_MASTERSHRINK:
1864                 if (ws->l_state.vertical_msize > 1)
1865                         ws->l_state.vertical_msize--;
1866                 break;
1867         case SWM_ARG_ID_MASTERGROW:
1868                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1869                         ws->l_state.vertical_msize++;
1870                 break;
1871         case SWM_ARG_ID_MASTERADD:
1872                 ws->l_state.vertical_mwin++;
1873                 break;
1874         case SWM_ARG_ID_MASTERDEL:
1875                 if (ws->l_state.vertical_mwin > 0)
1876                         ws->l_state.vertical_mwin--;
1877                 break;
1878         case SWM_ARG_ID_STACKINC:
1879                 ws->l_state.vertical_stacks++;
1880                 break;
1881         case SWM_ARG_ID_STACKDEC:
1882                 if (ws->l_state.vertical_stacks > 1)
1883                         ws->l_state.vertical_stacks--;
1884                 break;
1885         default:
1886                 return;
1887         }
1888 }
1889
1890 void
1891 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1892 {
1893         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1894
1895         stack_master(ws, g, 0, 0);
1896 }
1897
1898 void
1899 horizontal_config(struct workspace *ws, int id)
1900 {
1901         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1902
1903         switch (id) {
1904         case SWM_ARG_ID_STACKRESET:
1905         case SWM_ARG_ID_STACKINIT:
1906                 ws->l_state.horizontal_mwin = 1;
1907                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1908                 ws->l_state.horizontal_stacks = 1;
1909                 break;
1910         case SWM_ARG_ID_MASTERSHRINK:
1911                 if (ws->l_state.horizontal_msize > 1)
1912                         ws->l_state.horizontal_msize--;
1913                 break;
1914         case SWM_ARG_ID_MASTERGROW:
1915                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1916                         ws->l_state.horizontal_msize++;
1917                 break;
1918         case SWM_ARG_ID_MASTERADD:
1919                 ws->l_state.horizontal_mwin++;
1920                 break;
1921         case SWM_ARG_ID_MASTERDEL:
1922                 if (ws->l_state.horizontal_mwin > 0)
1923                         ws->l_state.horizontal_mwin--;
1924                 break;
1925         case SWM_ARG_ID_STACKINC:
1926                 ws->l_state.horizontal_stacks++;
1927                 break;
1928         case SWM_ARG_ID_STACKDEC:
1929                 if (ws->l_state.horizontal_stacks > 1)
1930                         ws->l_state.horizontal_stacks--;
1931                 break;
1932         default:
1933                 return;
1934         }
1935 }
1936
1937 void
1938 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1939 {
1940         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1941
1942         stack_master(ws, g, 1, 0);
1943 }
1944
1945 /* fullscreen view */
1946 void
1947 max_stack(struct workspace *ws, struct swm_geometry *g)
1948 {
1949         XWindowChanges          wc;
1950         struct swm_geometry     gg = *g;
1951         struct ws_win           *win, *wintrans = NULL;
1952         unsigned int            mask;
1953         int                     winno;
1954
1955         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1956
1957         if (ws == NULL)
1958                 return;
1959
1960         winno = count_win(ws, 0);
1961         if (winno == 0 && count_win(ws, 1) == 0)
1962                 return;
1963
1964         TAILQ_FOREACH(win, &ws->winlist, entry) {
1965                 if (win->transient != 0) {
1966                         wintrans = win;
1967                 } else {
1968                         bzero(&wc, sizeof wc);
1969                         wc.border_width = 1;
1970                         win->g.x = wc.x = gg.x;
1971                         win->g.y = wc.y = gg.y;
1972                         win->g.w = wc.width = gg.w;
1973                         win->g.h = wc.height = gg.h;
1974                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1975                         XConfigureWindow(display, win->id, mask, &wc);
1976
1977                         /* unmap only if we don't have multi screen */
1978                         if (win != ws->focus)
1979                                 if (!(ScreenCount(display) > 1 || outputs > 1))
1980                                         unmap_window(win);
1981                 }
1982         }
1983
1984         /* put the last transient on top */
1985         if (wintrans) {
1986                 stack_floater(wintrans, ws->r);
1987                 focus_win(wintrans); /* override */
1988         }
1989 }
1990
1991 void
1992 send_to_ws(struct swm_region *r, union arg *args)
1993 {
1994         int                     wsid = args->id;
1995         struct ws_win           *win = win, *winfocus = NULL;
1996         struct workspace        *ws, *nws;
1997         Atom                    ws_idx_atom = 0;
1998         unsigned char           ws_idx_str[SWM_PROPLEN];
1999
2000         if (r && r->ws)
2001                 win = r->ws->focus;
2002         else
2003                 return;
2004         if (win == NULL)
2005                 return;
2006
2007         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
2008
2009         ws = win->ws;
2010         nws = &win->s->ws[wsid];
2011
2012         /* find a window to focus */
2013         winfocus = TAILQ_PREV(win, ws_win_list, entry);
2014         if (TAILQ_FIRST(&ws->winlist) == win)
2015                 winfocus = TAILQ_NEXT(win, entry);
2016         else {
2017                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
2018                 if (winfocus == NULL)
2019                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
2020         }
2021         /* out of windows in ws so focus on nws instead if we multi screen */
2022         if (winfocus == NULL)
2023                 if (ScreenCount(display) > 1 || outputs > 1)
2024                         winfocus = win;
2025
2026         unmap_window(win);
2027         TAILQ_REMOVE(&ws->winlist, win, entry);
2028         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2029         win->ws = nws;
2030
2031         /* Try to update the window's workspace property */
2032         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2033         if (ws_idx_atom &&
2034             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2035                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2036                     ws_idx_str);
2037                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2038                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2039         }
2040
2041         if (count_win(nws, 1) == 1)
2042                 nws->focus = win;
2043         ws->restack = 1;
2044         nws->restack = 1;
2045
2046         stack();
2047         if (winfocus)
2048                 focus_win(winfocus);
2049 }
2050
2051 void
2052 wkill(struct swm_region *r, union arg *args)
2053 {
2054         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2055
2056         if(r->ws->focus == NULL)
2057                 return;
2058
2059         if (args->id == SWM_ARG_ID_KILLWINDOW)
2060                 XKillClient(display, r->ws->focus->id);
2061         else
2062                 if (r->ws->focus->can_delete)
2063                         client_msg(r->ws->focus, adelete);
2064 }
2065
2066 void
2067 floating_toggle(struct swm_region *r, union arg *args)
2068 {
2069         struct ws_win   *win = r->ws->focus;
2070
2071         if (win == NULL)
2072                 return;
2073
2074         win->floating = !win->floating;
2075         win->manual = 0;
2076         stack();
2077         focus_win(win);
2078 }
2079
2080 void
2081 resize_window(struct ws_win *win, int center)
2082 {
2083         unsigned int            mask;
2084         XWindowChanges          wc;
2085         struct swm_region       *r;
2086
2087         r = root_to_region(win->wa.root);
2088         bzero(&wc, sizeof wc);
2089         mask = CWBorderWidth | CWWidth | CWHeight;
2090         wc.border_width = 1;
2091         wc.width = win->g.w;
2092         wc.height = win->g.h;
2093         if (center == SWM_ARG_ID_CENTER) {
2094                 wc.x = (WIDTH(r) - win->g.w) / 2;
2095                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2096                 mask |= CWX | CWY;
2097         }
2098
2099         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2100             win->id, wc.x, wc.y, wc.width, wc.height);
2101
2102         XConfigureWindow(display, win->id, mask, &wc);
2103         config_win(win);
2104 }
2105
2106 void
2107 resize(struct ws_win *win, union arg *args)
2108 {
2109         XEvent                  ev;
2110         Time                    time = 0;
2111
2112         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2113             win->id, win->floating, win->transient);
2114
2115         if (!(win->transient != 0 || win->floating != 0))
2116                 return;
2117
2118         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2119             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2120                 return;
2121         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2122         do {
2123                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2124                     SubstructureRedirectMask, &ev);
2125                 switch(ev.type) {
2126                 case ConfigureRequest:
2127                 case Expose:
2128                 case MapRequest:
2129                         handler[ev.type](&ev);
2130                         break;
2131                 case MotionNotify:
2132                         if (ev.xmotion.x <= 1)
2133                                 ev.xmotion.x = 1;
2134                         if (ev.xmotion.y <= 1)
2135                                 ev.xmotion.y = 1;
2136                         win->g.w = ev.xmotion.x;
2137                         win->g.h = ev.xmotion.y;
2138
2139                         /* not free, don't sync more than 60 times / second */
2140                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2141                                 time = ev.xmotion.time;
2142                                 XSync(display, False);
2143                                 resize_window(win, args->id);
2144                         }
2145                         break;
2146                 }
2147         } while (ev.type != ButtonRelease);
2148         if (time) {
2149                 XSync(display, False);
2150                 resize_window(win, args->id);
2151         }
2152         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2153             win->g.h - 1);
2154         XUngrabPointer(display, CurrentTime);
2155
2156         /* drain events */
2157         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2158 }
2159
2160 void
2161 move_window(struct ws_win *win)
2162 {
2163         unsigned int            mask;
2164         XWindowChanges          wc;
2165         struct swm_region       *r;
2166
2167         r = root_to_region(win->wa.root);
2168         bzero(&wc, sizeof wc);
2169         mask = CWX | CWY;
2170         wc.x = win->g.x;
2171         wc.y = win->g.y;
2172
2173         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2174             win->id, wc.x, wc.y, wc.width, wc.height);
2175
2176         XConfigureWindow(display, win->id, mask, &wc);
2177         config_win(win);
2178 }
2179
2180 void
2181 move(struct ws_win *win, union arg *args)
2182 {
2183         XEvent                  ev;
2184         Time                    time = 0;
2185         int                     restack = 0;
2186
2187         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2188             win->id, win->floating, win->transient);
2189
2190         if (win->floating == 0) {
2191                 win->floating = 1;
2192                 win->manual = 1;
2193                 restack = 1;
2194         }
2195
2196         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2197             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2198                 return;
2199         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2200         do {
2201                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2202                     SubstructureRedirectMask, &ev);
2203                 switch(ev.type) {
2204                 case ConfigureRequest:
2205                 case Expose:
2206                 case MapRequest:
2207                         handler[ev.type](&ev);
2208                         break;
2209                 case MotionNotify:
2210                         win->g.x = ev.xmotion.x_root;
2211                         win->g.y = ev.xmotion.y_root;
2212
2213                         /* not free, don't sync more than 60 times / second */
2214                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2215                                 time = ev.xmotion.time;
2216                                 XSync(display, False);
2217                                 move_window(win);
2218                         }
2219                         break;
2220                 }
2221         } while (ev.type != ButtonRelease);
2222         if (time) {
2223                 XSync(display, False);
2224                 move_window(win);
2225         }
2226         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2227         XUngrabPointer(display, CurrentTime);
2228         if (restack)
2229                 stack();
2230
2231         /* drain events */
2232         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2233 }
2234
2235 /* key definitions */
2236 void
2237 dummykeyfunc(struct swm_region *r, union arg *args)
2238 {
2239 };
2240
2241 void
2242 legacyfunc(struct swm_region *r, union arg *args)
2243 {
2244 };
2245
2246 struct keyfunc {
2247         char                    name[SWM_FUNCNAME_LEN];
2248         void                    (*func)(struct swm_region *r, union arg *);
2249         union arg               args;
2250 } keyfuncs[kf_invalid + 1] = {
2251         /* name                 function        argument */
2252         { "cycle_layout",       cycle_layout,   {0} },
2253         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2254         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2255         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2256         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2257         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2258         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2259         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2260         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2261         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2262         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2263         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2264         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2265         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2266         { "spawn_menu",         legacyfunc,     {0} },
2267         { "quit",               quit,           {0} },
2268         { "restart",            restart,        {0} },
2269         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2270         { "ws_1",               switchws,       {.id = 0} },
2271         { "ws_2",               switchws,       {.id = 1} },
2272         { "ws_3",               switchws,       {.id = 2} },
2273         { "ws_4",               switchws,       {.id = 3} },
2274         { "ws_5",               switchws,       {.id = 4} },
2275         { "ws_6",               switchws,       {.id = 5} },
2276         { "ws_7",               switchws,       {.id = 6} },
2277         { "ws_8",               switchws,       {.id = 7} },
2278         { "ws_9",               switchws,       {.id = 8} },
2279         { "ws_10",              switchws,       {.id = 9} },
2280         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2281         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2282         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2283         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2284         { "mvws_1",             send_to_ws,     {.id = 0} },
2285         { "mvws_2",             send_to_ws,     {.id = 1} },
2286         { "mvws_3",             send_to_ws,     {.id = 2} },
2287         { "mvws_4",             send_to_ws,     {.id = 3} },
2288         { "mvws_5",             send_to_ws,     {.id = 4} },
2289         { "mvws_6",             send_to_ws,     {.id = 5} },
2290         { "mvws_7",             send_to_ws,     {.id = 6} },
2291         { "mvws_8",             send_to_ws,     {.id = 7} },
2292         { "mvws_9",             send_to_ws,     {.id = 8} },
2293         { "mvws_10",            send_to_ws,     {.id = 9} },
2294         { "bar_toggle",         bar_toggle,     {0} },
2295         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2296         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2297         { "screenshot_all",     legacyfunc,     {0} },
2298         { "screenshot_wind",    legacyfunc,     {0} },
2299         { "float_toggle",       floating_toggle,{0} },
2300         { "version",            version,        {0} },
2301         { "spawn_lock",         legacyfunc,     {0} },
2302         { "spawn_initscr",      legacyfunc,     {0} },
2303         { "spawn_custom",       dummykeyfunc,   {0} },
2304         { "invalid key func",   NULL,           {0} },
2305 };
2306 struct key {
2307         unsigned int            mod;
2308         KeySym                  keysym;
2309         enum keyfuncid          funcid;
2310         char                    *spawn_name;
2311 };
2312 int                             keys_size = 0, keys_length = 0;
2313 struct key                      *keys = NULL;
2314
2315 /* mouse */
2316 enum { client_click, root_click };
2317 struct button {
2318         unsigned int            action;
2319         unsigned int            mask;
2320         unsigned int            button;
2321         void                    (*func)(struct ws_win *, union arg *);
2322         union arg               args;
2323 } buttons[] = {
2324           /* action     key             mouse button    func    args */
2325         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2326         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2327         { client_click, MODKEY,         Button1,        move,   {0} },
2328 };
2329
2330 void
2331 update_modkey(unsigned int mod)
2332 {
2333         int                     i;
2334
2335         mod_key = mod;
2336         for (i = 0; i < keys_length; i++)
2337                 if (keys[i].mod & ShiftMask)
2338                         keys[i].mod = mod | ShiftMask;
2339                 else
2340                         keys[i].mod = mod;
2341
2342         for (i = 0; i < LENGTH(buttons); i++)
2343                 if (buttons[i].mask & ShiftMask)
2344                         buttons[i].mask = mod | ShiftMask;
2345                 else
2346                         buttons[i].mask = mod;
2347 }
2348
2349 /* spawn */
2350 struct spawn_prog {
2351         char                    *name;
2352         int                     argc;
2353         char                    **argv;
2354 };
2355
2356 int                             spawns_size = 0, spawns_length = 0;
2357 struct spawn_prog               *spawns = NULL;
2358
2359 void
2360 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2361 {
2362         union arg               a;
2363         struct spawn_prog       *prog = NULL;
2364         int                     i;
2365         char                    *ap, **real_args;
2366
2367         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2368
2369         /* find program */
2370         for (i = 0; i < spawns_length; i++) {
2371                 if (!strcasecmp(spawn_name, spawns[i].name))
2372                         prog = &spawns[i];
2373         }
2374         if (prog == NULL) {
2375                 fprintf(stderr, "spawn_custom: program %s not found\n",
2376                     spawn_name);
2377                 return;
2378         }
2379
2380         /* make room for expanded args */
2381         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2382                 err(1, "spawn_custom: calloc real_args");
2383
2384         /* expand spawn_args into real_args */
2385         for (i = 0; i < prog->argc; i++) {
2386                 ap = prog->argv[i];
2387                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2388                 if (!strcasecmp(ap, "$bar_border")) {
2389                         if ((real_args[i] =
2390                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2391                             == NULL)
2392                                 err(1,  "spawn_custom border color");
2393                 } else if (!strcasecmp(ap, "$bar_color")) {
2394                         if ((real_args[i] =
2395                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2396                             == NULL)
2397                                 err(1, "spawn_custom bar color");
2398                 } else if (!strcasecmp(ap, "$bar_font")) {
2399                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2400                             == NULL)
2401                                 err(1, "spawn_custom bar fonts");
2402                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2403                         if ((real_args[i] =
2404                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2405                             == NULL)
2406                                 err(1, "spawn_custom color font");
2407                 } else if (!strcasecmp(ap, "$color_focus")) {
2408                         if ((real_args[i] =
2409                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2410                             == NULL)
2411                                 err(1, "spawn_custom color focus");
2412                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2413                         if ((real_args[i] =
2414                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2415                             == NULL)
2416                                 err(1, "spawn_custom color unfocus");
2417                 } else {
2418                         /* no match --> copy as is */
2419                         if ((real_args[i] = strdup(ap)) == NULL)
2420                                 err(1, "spawn_custom strdup(ap)");
2421                 }
2422                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2423                     real_args[i]);
2424         }
2425
2426 #ifdef SWM_DEBUG
2427         if ((swm_debug & SWM_D_SPAWN) != 0) {
2428                 fprintf(stderr, "spawn_custom: result = ");
2429                 for (i = 0; i < prog->argc; i++)
2430                         fprintf(stderr, "\"%s\" ", real_args[i]);
2431                 fprintf(stderr, "\n");
2432         }
2433 #endif
2434
2435         a.argv = real_args;
2436         spawn(r, &a);
2437         for (i = 0; i < prog->argc; i++)
2438                 free(real_args[i]);
2439         free(real_args);
2440 }
2441
2442 void
2443 setspawn(struct spawn_prog *prog)
2444 {
2445         int                     i, j;
2446
2447         if (prog == NULL || prog->name == NULL)
2448                 return;
2449
2450         /* find existing */
2451         for (i = 0; i < spawns_length; i++) {
2452                 if (!strcmp(spawns[i].name, prog->name)) {
2453                         /* found */
2454                         if (prog->argv == NULL) {
2455                                 /* delete */
2456                                 DNPRINTF(SWM_D_SPAWN,
2457                                     "setspawn: delete #%d %s\n",
2458                                     i, spawns[i].name);
2459                                 free(spawns[i].name);
2460                                 for (j = 0; j < spawns[i].argc; j++)
2461                                         free(spawns[i].argv[j]);
2462                                 free(spawns[i].argv);
2463                                 j = spawns_length - 1;
2464                                 if (i < j)
2465                                         spawns[i] = spawns[j];
2466                                 spawns_length--;
2467                                 free(prog->name);
2468                         } else {
2469                                 /* replace */
2470                                 DNPRINTF(SWM_D_SPAWN,
2471                                     "setspawn: replace #%d %s\n",
2472                                     i, spawns[i].name);
2473                                 free(spawns[i].name);
2474                                 for (j = 0; j < spawns[i].argc; j++)
2475                                         free(spawns[i].argv[j]);
2476                                 free(spawns[i].argv);
2477                                 spawns[i] = *prog;
2478                         }
2479                         /* found case handled */
2480                         free(prog);
2481                         return;
2482                 }
2483         }
2484
2485         if (prog->argv == NULL) {
2486                 fprintf(stderr,
2487                     "error: setspawn: cannot find program %s", prog->name);
2488                 free(prog);
2489                 return;
2490         }
2491
2492         /* not found: add */
2493         if (spawns_size == 0 || spawns == NULL) {
2494                 spawns_size = 4;
2495                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2496                 spawns = malloc((size_t)spawns_size *
2497                     sizeof(struct spawn_prog));
2498                 if (spawns == NULL) {
2499                         fprintf(stderr, "setspawn: malloc failed\n");
2500                         perror(" failed");
2501                         quit(NULL, NULL);
2502                 }
2503         } else if (spawns_length == spawns_size) {
2504                 spawns_size *= 2;
2505                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2506                 spawns = realloc(spawns, (size_t)spawns_size *
2507                     sizeof(struct spawn_prog));
2508                 if (spawns == NULL) {
2509                         fprintf(stderr, "setspawn: realloc failed\n");
2510                         perror(" failed");
2511                         quit(NULL, NULL);
2512                 }
2513         }
2514
2515         if (spawns_length < spawns_size) {
2516                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2517                     spawns_length, prog->name);
2518                 i = spawns_length++;
2519                 spawns[i] = *prog;
2520         } else {
2521                 fprintf(stderr, "spawns array problem?\n");
2522                 if (spawns == NULL) {
2523                         fprintf(stderr, "spawns array is NULL!\n");
2524                         quit(NULL, NULL);
2525                 }
2526         }
2527         free(prog);
2528 }
2529
2530 int
2531 setconfspawn(char *selector, char *value, int flags)
2532 {
2533         struct spawn_prog       *prog;
2534         char                    *vp, *cp, *word;
2535
2536         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2537         if ((prog = calloc(1, sizeof *prog)) == NULL)
2538                 err(1, "setconfspawn: calloc prog");
2539         prog->name = strdup(selector);
2540         if (prog->name == NULL)
2541                 err(1, "setconfspawn prog->name");
2542         if ((cp = vp = strdup(value)) == NULL)
2543                 err(1, "setconfspawn: strdup(value) ");
2544         while ((word = strsep(&cp, " \t")) != NULL) {
2545                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2546                 if (cp)
2547                         cp += (long)strspn(cp, " \t");
2548                 if (strlen(word) > 0) {
2549                         prog->argc++;
2550                         prog->argv = realloc(prog->argv,
2551                             prog->argc * sizeof(char *));
2552                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2553                                 err(1, "setconfspawn: strdup");
2554                 }
2555         }
2556         free(vp);
2557
2558         setspawn(prog);
2559
2560         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2561         return (0);
2562 }
2563
2564 void
2565 setup_spawn(void)
2566 {
2567         setconfspawn("term",            "xterm",                0);
2568         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2569         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2570         setconfspawn("lock",            "xlock",                0);
2571         setconfspawn("initscr",         "initscreen.sh",        0);
2572         setconfspawn("menu",            "dmenu_run"
2573                                         " -fn $bar_font"
2574                                         " -nb $bar_color"
2575                                         " -nf $bar_font_color"
2576                                         " -sb $bar_border"
2577                                         " -sf $bar_color",      0);
2578 }
2579
2580 /* key bindings */
2581 #define SWM_MODNAME_SIZE        32
2582 #define SWM_KEY_WS              "\n+ \t"
2583 int
2584 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2585 {
2586         char                    *cp, *name;
2587         KeySym                  uks;
2588         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2589         if (mod == NULL || ks == NULL) {
2590                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2591                 return (1);
2592         }
2593         if (keystr == NULL || strlen(keystr) == 0) {
2594                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2595                 return (1);
2596         }
2597         cp = keystr;
2598         *ks = NoSymbol;
2599         *mod = 0;
2600         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2601                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2602                 if (cp)
2603                         cp += (long)strspn(cp, SWM_KEY_WS);
2604                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2605                         *mod |= currmod;
2606                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2607                         *mod |= Mod1Mask;
2608                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2609                         *mod += Mod2Mask;
2610                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2611                         *mod |= Mod3Mask;
2612                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2613                         *mod |= Mod4Mask;
2614                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2615                         *mod |= ShiftMask;
2616                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2617                         *mod |= ControlMask;
2618                 else {
2619                         *ks = XStringToKeysym(name);
2620                         XConvertCase(*ks, ks, &uks);
2621                         if (ks == NoSymbol) {
2622                                 DNPRINTF(SWM_D_KEY,
2623                                     "parsekeys: invalid key %s\n",
2624                                     name);
2625                                 return (1);
2626                         }
2627                 }
2628         }
2629         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2630         return (0);
2631 }
2632 char *
2633 strdupsafe(char *str)
2634 {
2635         if (str == NULL)
2636                 return (NULL);
2637         else
2638                 return (strdup(str));
2639 }
2640 void
2641 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2642 {
2643         int                     i, j;
2644         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2645             keyfuncs[kfid].name, spawn_name);
2646         /* find existing */
2647         for (i = 0; i < keys_length; i++) {
2648                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2649                         if (kfid == kf_invalid) {
2650                                 /* found: delete */
2651                                 DNPRINTF(SWM_D_KEY,
2652                                     "setkeybinding: delete #%d %s\n",
2653                                     i, keyfuncs[keys[i].funcid].name);
2654                                 free(keys[i].spawn_name);
2655                                 j = keys_length - 1;
2656                                 if (i < j)
2657                                         keys[i] = keys[j];
2658                                 keys_length--;
2659                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2660                                 return;
2661                         } else {
2662                                 /* found: replace */
2663                                 DNPRINTF(SWM_D_KEY,
2664                                     "setkeybinding: replace #%d %s %s\n",
2665                                     i, keyfuncs[keys[i].funcid].name,
2666                                     spawn_name);
2667                                 free(keys[i].spawn_name);
2668                                 keys[i].mod = mod;
2669                                 keys[i].keysym = ks;
2670                                 keys[i].funcid = kfid;
2671                                 keys[i].spawn_name = strdupsafe(spawn_name);
2672                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2673                                 return;
2674                         }
2675                 }
2676         }
2677         if (kfid == kf_invalid) {
2678                 fprintf(stderr,
2679                     "error: setkeybinding: cannot find mod/key combination");
2680                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2681                 return;
2682         }
2683         /* not found: add */
2684         if (keys_size == 0 || keys == NULL) {
2685                 keys_size = 4;
2686                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2687                 keys = malloc((size_t)keys_size * sizeof(struct key));
2688                 if (!keys) {
2689                         fprintf(stderr, "malloc failed\n");
2690                         perror(" failed");
2691                         quit(NULL, NULL);
2692                 }
2693         } else if (keys_length == keys_size) {
2694                 keys_size *= 2;
2695                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2696                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2697                 if (!keys) {
2698                         fprintf(stderr, "realloc failed\n");
2699                         perror(" failed");
2700                         quit(NULL, NULL);
2701                 }
2702         }
2703         if (keys_length < keys_size) {
2704                 j = keys_length++;
2705                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2706                     j, keyfuncs[kfid].name, spawn_name);
2707                 keys[j].mod = mod;
2708                 keys[j].keysym = ks;
2709                 keys[j].funcid = kfid;
2710                 keys[j].spawn_name = strdupsafe(spawn_name);
2711         } else {
2712                 fprintf(stderr, "keys array problem?\n");
2713                 if (!keys) {
2714                         fprintf(stderr, "keys array problem\n");
2715                         quit(NULL, NULL);
2716                 }
2717         }
2718         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2719 }
2720 int
2721 setconfbinding(char *selector, char *value, int flags)
2722 {
2723         enum keyfuncid          kfid;
2724         unsigned int            mod;
2725         KeySym                  ks;
2726         int                     i;
2727         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2728         if (selector == NULL) {
2729                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2730                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2731                         kfid = kf_invalid;
2732                         setkeybinding(mod, ks, kfid, NULL);
2733                         return (0);
2734                 } else
2735                         return (1);
2736         }
2737         /* search by key function name */
2738         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2739                 if (strncasecmp(selector, keyfuncs[kfid].name,
2740                     SWM_FUNCNAME_LEN) == 0) {
2741                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2742                             selector);
2743                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2744                                 setkeybinding(mod, ks, kfid, NULL);
2745                                 return (0);
2746                         } else
2747                                 return (1);
2748                 }
2749         }
2750         /* search by custom spawn name */
2751         for (i = 0; i < spawns_length; i++) {
2752                 if (strcasecmp(selector, spawns[i].name) == 0) {
2753                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2754                             selector);
2755                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2756                                 setkeybinding(mod, ks, kf_spawn_custom,
2757                                     spawns[i].name);
2758                                 return (0);
2759                         } else
2760                                 return (1);
2761                 }
2762         }
2763         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2764         return (1);
2765 }
2766 void
2767 setup_keys(void)
2768 {
2769         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2770         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2771         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2772         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2773         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2774         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2775         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2776         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2777         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2778         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2779         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2780         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2781         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2782         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2783         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2784         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2785         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2786         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2787         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2788         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2789         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2790         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2791         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2792         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2793         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2794         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2795         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2796         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2797         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2798         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2799         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2800         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2801         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2802         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2803         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2804         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2805         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2806         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2807         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2808         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2809         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2810         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2811         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2812         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2813         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2814         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2815         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2816         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2817         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2818         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2819         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2820         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2821         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2822 }
2823 void
2824 updatenumlockmask(void)
2825 {
2826         unsigned int            i, j;
2827         XModifierKeymap         *modmap;
2828
2829         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2830         numlockmask = 0;
2831         modmap = XGetModifierMapping(display);
2832         for (i = 0; i < 8; i++)
2833                 for (j = 0; j < modmap->max_keypermod; j++)
2834                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2835                           == XKeysymToKeycode(display, XK_Num_Lock))
2836                                 numlockmask = (1 << i);
2837
2838         XFreeModifiermap(modmap);
2839 }
2840
2841 void
2842 grabkeys(void)
2843 {
2844         unsigned int            i, j, k;
2845         KeyCode                 code;
2846         unsigned int            modifiers[] =
2847             { 0, LockMask, numlockmask, numlockmask | LockMask };
2848
2849         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2850         updatenumlockmask();
2851
2852         for (k = 0; k < ScreenCount(display); k++) {
2853                 if (TAILQ_EMPTY(&screens[k].rl))
2854                         continue;
2855                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2856                 for (i = 0; i < keys_length; i++) {
2857                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2858                                 for (j = 0; j < LENGTH(modifiers); j++)
2859                                         XGrabKey(display, code,
2860                                             keys[i].mod | modifiers[j],
2861                                             screens[k].root, True,
2862                                             GrabModeAsync, GrabModeAsync);
2863                 }
2864         }
2865 }
2866
2867 void
2868 grabbuttons(struct ws_win *win, int focused)
2869 {
2870         unsigned int            i, j;
2871         unsigned int            modifiers[] =
2872             { 0, LockMask, numlockmask, numlockmask|LockMask };
2873
2874         updatenumlockmask();
2875         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2876         if(focused) {
2877                 for (i = 0; i < LENGTH(buttons); i++)
2878                         if (buttons[i].action == client_click)
2879                                 for (j = 0; j < LENGTH(modifiers); j++)
2880                                         XGrabButton(display, buttons[i].button,
2881                                             buttons[i].mask | modifiers[j],
2882                                             win->id, False, BUTTONMASK,
2883                                             GrabModeAsync, GrabModeSync, None,
2884                                             None);
2885         } else
2886                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2887                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2888 }
2889
2890 const char *quirkname[] = {
2891         "NONE",         /* config string for "no value" */
2892         "FLOAT",
2893         "TRANSSZ",
2894         "ANYWHERE",
2895         "XTERM_FONTADJ",
2896         "FULLSCREEN",
2897 };
2898
2899 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2900 #define SWM_Q_WS                "\n|+ \t"
2901 int
2902 parsequirks(char *qstr, unsigned long *quirk)
2903 {
2904         char                    *cp, *name;
2905         int                     i;
2906
2907         if (quirk == NULL)
2908                 return (1);
2909
2910         cp = qstr;
2911         *quirk = 0;
2912         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2913                 if (cp)
2914                         cp += (long)strspn(cp, SWM_Q_WS);
2915                 for (i = 0; i < LENGTH(quirkname); i++) {
2916                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2917                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2918                                 if (i == 0) {
2919                                         *quirk = 0;
2920                                         return (0);
2921                                 }
2922                                 *quirk |= 1 << (i-1);
2923                                 break;
2924                         }
2925                 }
2926                 if (i >= LENGTH(quirkname)) {
2927                         DNPRINTF(SWM_D_QUIRK,
2928                             "parsequirks: invalid quirk [%s]\n", name);
2929                         return (1);
2930                 }
2931         }
2932         return (0);
2933 }
2934 void
2935 setquirk(const char *class, const char *name, const int quirk)
2936 {
2937         int                     i, j;
2938
2939         /* find existing */
2940         for (i = 0; i < quirks_length; i++) {
2941                 if (!strcmp(quirks[i].class, class) &&
2942                     !strcmp(quirks[i].name, name)) {
2943                         if (!quirk) {
2944                                 /* found: delete */
2945                                 DNPRINTF(SWM_D_QUIRK,
2946                                     "setquirk: delete #%d %s:%s\n",
2947                                     i, quirks[i].class, quirks[i].name);
2948                                 free(quirks[i].class);
2949                                 free(quirks[i].name);
2950                                 j = quirks_length - 1;
2951                                 if (i < j)
2952                                         quirks[i] = quirks[j];
2953                                 quirks_length--;
2954                                 return;
2955                         } else {
2956                                 /* found: replace */
2957                                 DNPRINTF(SWM_D_QUIRK,
2958                                     "setquirk: replace #%d %s:%s\n",
2959                                     i, quirks[i].class, quirks[i].name);
2960                                 free(quirks[i].class);
2961                                 free(quirks[i].name);
2962                                 quirks[i].class = strdup(class);
2963                                 quirks[i].name = strdup(name);
2964                                 quirks[i].quirk = quirk;
2965                                 return;
2966                         }
2967                 }
2968         }
2969         if (!quirk) {
2970                 fprintf(stderr,
2971                     "error: setquirk: cannot find class/name combination");
2972                 return;
2973         }
2974         /* not found: add */
2975         if (quirks_size == 0 || quirks == NULL) {
2976                 quirks_size = 4;
2977                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2978                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2979                 if (!quirks) {
2980                         fprintf(stderr, "setquirk: malloc failed\n");
2981                         perror(" failed");
2982                         quit(NULL, NULL);
2983                 }
2984         } else if (quirks_length == quirks_size) {
2985                 quirks_size *= 2;
2986                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2987                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2988                 if (!quirks) {
2989                         fprintf(stderr, "setquirk: realloc failed\n");
2990                         perror(" failed");
2991                         quit(NULL, NULL);
2992                 }
2993         }
2994         if (quirks_length < quirks_size) {
2995                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2996                 j = quirks_length++;
2997                 quirks[j].class = strdup(class);
2998                 quirks[j].name = strdup(name);
2999                 quirks[j].quirk = quirk;
3000         } else {
3001                 fprintf(stderr, "quirks array problem?\n");
3002                 if (!quirks) {
3003                         fprintf(stderr, "quirks array problem!\n");
3004                         quit(NULL, NULL);
3005                 }
3006         }
3007 }
3008 int
3009 setconfquirk(char *selector, char *value, int flags)
3010 {
3011         char                    *cp, *class, *name;
3012         int                     retval;
3013         unsigned long           quirks;
3014         if (selector == NULL)
3015                 return (0);
3016         if ((cp = strchr(selector, ':')) == NULL)
3017                 return (0);
3018         *cp = '\0';
3019         class = selector;
3020         name = cp + 1;
3021         if ((retval = parsequirks(value, &quirks)) == 0)
3022                 setquirk(class, name, quirks);
3023         return (retval);
3024 }
3025
3026 void
3027 setup_quirks(void)
3028 {
3029         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3030         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3031         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3032         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3033         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3034         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3035         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3036         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3037         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3038         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3039         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3040         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3041         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3042 }
3043
3044 /* conf file stuff */
3045 #define SWM_CONF_FILE   "scrotwm.conf"
3046
3047 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3048           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3049           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3050           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3051           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3052
3053 int
3054 setconfvalue(char *selector, char *value, int flags)
3055 {
3056         switch (flags) {
3057         case SWM_S_BAR_DELAY:
3058                 bar_delay = atoi(value);
3059                 break;
3060         case SWM_S_BAR_ENABLED:
3061                 bar_enabled = atoi(value);
3062                 break;
3063         case SWM_S_STACK_ENABLED:
3064                 stack_enabled = atoi(value);
3065                 break;
3066         case SWM_S_CLOCK_ENABLED:
3067                 clock_enabled = atoi(value);
3068                 break;
3069         case SWM_S_CYCLE_EMPTY:
3070                 cycle_empty = atoi(value);
3071                 break;
3072         case SWM_S_CYCLE_VISIBLE:
3073                 cycle_visible = atoi(value);
3074                 break;
3075         case SWM_S_SS_ENABLED:
3076                 ss_enabled = atoi(value);
3077                 break;
3078         case SWM_S_TERM_WIDTH:
3079                 term_width = atoi(value);
3080                 break;
3081         case SWM_S_TITLE_CLASS_ENABLED:
3082                 title_class_enabled = atoi(value);
3083                 break;
3084         case SWM_S_TITLE_NAME_ENABLED:
3085                 title_name_enabled = atoi(value);
3086                 break;
3087         case SWM_S_BAR_FONT:
3088                 free(bar_fonts[0]);
3089                 if ((bar_fonts[0] = strdup(value)) == NULL)
3090                         err(1, "setconfvalue: bar_font");
3091                 break;
3092         case SWM_S_BAR_ACTION:
3093                 free(bar_argv[0]);
3094                 if ((bar_argv[0] = strdup(value)) == NULL)
3095                         err(1, "setconfvalue: bar_action");
3096                 break;
3097         case SWM_S_SPAWN_TERM:
3098                 free(spawn_term[0]);
3099                 if ((spawn_term[0] = strdup(value)) == NULL)
3100                         err(1, "setconfvalue: spawn_term");
3101                 break;
3102         case SWM_S_SS_APP:
3103                 break;
3104         case SWM_S_DIALOG_RATIO:
3105                 dialog_ratio = atof(value);
3106                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3107                         dialog_ratio = .6;
3108                 break;
3109         default:
3110                 return (1);
3111         }
3112         return (0);
3113 }
3114
3115 int
3116 setconfmodkey(char *selector, char *value, int flags)
3117 {
3118         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3119                 update_modkey(Mod1Mask);
3120         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3121                 update_modkey(Mod2Mask);
3122         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3123                 update_modkey(Mod3Mask);
3124         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3125                 update_modkey(Mod4Mask);
3126         else
3127                 return (1);
3128         return (0);
3129 }
3130
3131 int
3132 setconfcolor(char *selector, char *value, int flags)
3133 {
3134         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3135         return (0);
3136 }
3137
3138 int
3139 setconfregion(char *selector, char *value, int flags)
3140 {
3141         custom_region(value);
3142         return (0);
3143 }
3144
3145 /* config options */
3146 struct config_option {
3147         char                    *optname;
3148         int (*func)(char*, char*, int);
3149         int funcflags;
3150 };
3151 struct config_option configopt[] = {
3152         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3153         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3154         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3155         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3156         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3157         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3158         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3159         { "bind",                       setconfbinding, 0 },
3160         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3161         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3162         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3163         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3164         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3165         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3166         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3167         { "modkey",                     setconfmodkey,  0 },
3168         { "program",                    setconfspawn,   0 },
3169         { "quirk",                      setconfquirk,   0 },
3170         { "region",                     setconfregion,  0 },
3171         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3172         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3173         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3174         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3175         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3176         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3177 };
3178
3179
3180 int
3181 conf_load(char *filename)
3182 {
3183         FILE                    *config;
3184         char                    *line, *cp, *optsub, *optval;
3185         size_t                  linelen, lineno = 0;
3186         int                     wordlen, i, optind;
3187         struct config_option    *opt;
3188
3189         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3190
3191         if (filename == NULL) {
3192                 fprintf(stderr, "conf_load: no filename\n");
3193                 return (1);
3194         }
3195         if ((config = fopen(filename, "r")) == NULL) {
3196                 warn("conf_load: fopen");
3197                 return (1);
3198         }
3199
3200         while (!feof(config)) {
3201                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3202                     == NULL) {
3203                         if (ferror(config))
3204                                 err(1, "%s", filename);
3205                         else
3206                                 continue;
3207                 }
3208                 cp = line;
3209                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3210                 if (cp[0] == '\0') {
3211                         /* empty line */
3212                         free(line);
3213                         continue;
3214                 }
3215                 /* get config option */
3216                 wordlen = strcspn(cp, "=[ \t\n");
3217                 if (wordlen == 0) {
3218                         warnx("%s: line %zd: no option found",
3219                             filename, lineno);
3220                         return (1);
3221                 }
3222                 optind = -1;
3223                 for (i = 0; i < LENGTH(configopt); i++) {
3224                         opt = &configopt[i];
3225                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3226                             strlen(opt->optname) == wordlen) {
3227                                 optind = i;
3228                                 break;
3229                         }
3230                 }
3231                 if (optind == -1) {
3232                         warnx("%s: line %zd: unknown option %.*s",
3233                             filename, lineno, wordlen, cp);
3234                         return (1);
3235                 }
3236                 cp += wordlen;
3237                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3238                 /* get [selector] if any */
3239                 optsub = NULL;
3240                 if (*cp == '[') {
3241                         cp++;
3242                         wordlen = strcspn(cp, "]");
3243                         if (*cp != ']') {
3244                                 if (wordlen == 0) {
3245                                         warnx("%s: line %zd: syntax error",
3246                                             filename, lineno);
3247                                         return (1);
3248                                 }
3249                                 asprintf(&optsub, "%.*s", wordlen, cp);
3250                         }
3251                         cp += wordlen;
3252                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3253                 }
3254                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3255                 /* get RHS value */
3256                 optval = strdup(cp);
3257                 /* call function to deal with it all */
3258                 if (configopt[optind].func(optsub, optval,
3259                     configopt[optind].funcflags) != 0) {
3260                         fprintf(stderr, "%s line %zd: %s\n",
3261                             filename, lineno, line);
3262                         errx(1, "%s: line %zd: invalid data for %s",
3263                             filename, lineno, configopt[optind].optname);
3264                 }
3265                 free(optval);
3266                 free(optsub);
3267                 free(line);
3268         }
3269
3270         fclose(config);
3271         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3272
3273         return (0);
3274 }
3275
3276 struct ws_win *
3277 manage_window(Window id)
3278 {
3279         Window                  trans = 0;
3280         struct workspace        *ws;
3281         struct ws_win           *win, *ww;
3282         int                     format, i, ws_idx, n, border_me = 0;
3283         unsigned long           nitems, bytes;
3284         Atom                    ws_idx_atom = 0, type;
3285         Atom                    *prot = NULL, *pp;
3286         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3287         struct swm_region       *r;
3288         long                    mask;
3289         const char              *errstr;
3290         XWindowChanges          wc;
3291
3292         if ((win = find_window(id)) != NULL)
3293                         return (win);   /* already being managed */
3294
3295         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3296                 errx(1, "calloc: failed to allocate memory for new window");
3297
3298         /* Get all the window data in one shot */
3299         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3300         if (ws_idx_atom)
3301                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3302                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3303         XGetWindowAttributes(display, id, &win->wa);
3304         XGetWMNormalHints(display, id, &win->sh, &mask);
3305         XGetTransientForHint(display, id, &trans);
3306         if (trans) {
3307                 win->transient = trans;
3308                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3309                     (unsigned)win->id, win->transient);
3310         }
3311         /* get supported protocols */
3312         if (XGetWMProtocols(display, id, &prot, &n)) {
3313                 for (i = 0, pp = prot; i < n; i++, pp++)
3314                         if (*pp == adelete)
3315                                 win->can_delete = 1;
3316                 if (prot)
3317                         XFree(prot);
3318         }
3319
3320         /*
3321          * Figure out where to put the window. If it was previously assigned to
3322          * a workspace (either by spawn() or manually moving), and isn't
3323          * transient, * put it in the same workspace
3324          */
3325         r = root_to_region(win->wa.root);
3326         if (prop && win->transient == 0) {
3327                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3328                 ws_idx = strtonum(prop, 0, 9, &errstr);
3329                 if (errstr) {
3330                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3331                             errstr, prop);
3332                 }
3333                 ws = &r->s->ws[ws_idx];
3334         } else {
3335                 ws = r->ws;
3336                 /* this should launch transients in the same ws as parent */
3337                 if (id && trans)
3338                         if ((ww = find_window(trans)) != NULL)
3339                                 if (ws->r) {
3340                                         ws = ww->ws;
3341                                         if (ww->ws->r)
3342                                                 r = ww->ws->r;
3343                                         else
3344                                                 fprintf(stderr,
3345                                                     "fix this bug mcbride\n");
3346                                         border_me = 1;
3347                                 }
3348         }
3349
3350         /* set up the window layout */
3351         win->id = id;
3352         win->ws = ws;
3353         win->s = r->s;  /* this never changes */
3354         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3355
3356         win->g.w = win->wa.width;
3357         win->g.h = win->wa.height;
3358         win->g.x = win->wa.x;
3359         win->g.y = win->wa.y;
3360
3361         /* Set window properties so we can remember this after reincarnation */
3362         if (ws_idx_atom && prop == NULL &&
3363             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3364                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3365                     ws_idx_str);
3366                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3367                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3368         }
3369         XFree(prop);
3370
3371         if (XGetClassHint(display, win->id, &win->ch)) {
3372                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3373                     win->ch.res_class, win->ch.res_name);
3374                 for (i = 0; i < quirks_length; i++){
3375                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3376                             !strcmp(win->ch.res_name, quirks[i].name)) {
3377                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3378                                     win->ch.res_class, win->ch.res_name);
3379                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3380                                         win->floating = 1;
3381                                 win->quirks = quirks[i].quirk;
3382                         }
3383                 }
3384         }
3385
3386         /* alter window position if quirky */
3387         if (win->quirks & SWM_Q_ANYWHERE) {
3388                 win->manual = 1; /* don't center the quirky windows */
3389                 bzero(&wc, sizeof wc);
3390                 mask = 0;
3391                 if (win->g.y < bar_height) {
3392                         win->g.y = wc.y = bar_height;
3393                         mask |= CWY;
3394                 }
3395                 if (win->g.w + win->g.x > WIDTH(r)) {
3396                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3397                         mask |= CWX;
3398                 }
3399                 border_me = 1;
3400         }
3401
3402         /* Reset font sizes (the bruteforce way; no default keybinding). */
3403         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3404                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3405                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3406                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3407                         fake_keypress(win, XK_KP_Add, ShiftMask);
3408         }
3409
3410         /* border me */
3411         if (border_me) {
3412                 bzero(&wc, sizeof wc);
3413                 wc.border_width = 1;
3414                 mask = CWBorderWidth;
3415                 XConfigureWindow(display, win->id, mask, &wc);
3416         }
3417
3418         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3419             PropertyChangeMask | StructureNotifyMask);
3420
3421         set_win_state(win, NormalState);
3422
3423         /* floaters need to be mapped if they are in the current workspace */
3424         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3425                 XMapRaised(display, win->id);
3426
3427         return (win);
3428 }
3429
3430 void
3431 unmanage_window(struct ws_win *win)
3432 {
3433         struct workspace        *ws;
3434
3435         if (win == NULL)
3436                 return;
3437
3438         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3439
3440         ws = win->ws;
3441         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3442         set_win_state(win, WithdrawnState);
3443         if (win->ch.res_class)
3444                 XFree(win->ch.res_class);
3445         if (win->ch.res_name)
3446                 XFree(win->ch.res_name);
3447         free(win);
3448 }
3449
3450 void
3451 expose(XEvent *e)
3452 {
3453         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3454 }
3455
3456 void
3457 keypress(XEvent *e)
3458 {
3459         unsigned int            i;
3460         KeySym                  keysym;
3461         XKeyEvent               *ev = &e->xkey;
3462
3463         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3464
3465         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3466         for (i = 0; i < keys_length; i++)
3467                 if (keysym == keys[i].keysym
3468                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3469                    && keyfuncs[keys[i].funcid].func) {
3470                         if (keys[i].funcid == kf_spawn_custom)
3471                                 spawn_custom(
3472                                     root_to_region(ev->root),
3473                                     &(keyfuncs[keys[i].funcid].args),
3474                                     keys[i].spawn_name
3475                                     );
3476                         else
3477                                 keyfuncs[keys[i].funcid].func(
3478                                     root_to_region(ev->root),
3479                                     &(keyfuncs[keys[i].funcid].args)
3480                                     );
3481                 }
3482 }
3483
3484 void
3485 buttonpress(XEvent *e)
3486 {
3487         XButtonPressedEvent     *ev = &e->xbutton;
3488
3489         struct ws_win           *win;
3490         int                     i, action;
3491
3492         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3493
3494         action = root_click;
3495         if ((win = find_window(ev->window)) == NULL)
3496                 return;
3497         else {
3498                 focus_win(win);
3499                 action = client_click;
3500         }
3501
3502         for (i = 0; i < LENGTH(buttons); i++)
3503                 if (action == buttons[i].action && buttons[i].func &&
3504                     buttons[i].button == ev->button &&
3505                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3506                         buttons[i].func(win, &buttons[i].args);
3507 }
3508
3509 void
3510 configurerequest(XEvent *e)
3511 {
3512         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3513         struct ws_win           *win;
3514         int                     new = 0;
3515         XWindowChanges          wc;
3516
3517         if ((win = find_window(ev->window)) == NULL)
3518                 new = 1;
3519
3520         if (new) {
3521                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3522                     ev->window);
3523                 bzero(&wc, sizeof wc);
3524                 wc.x = ev->x;
3525                 wc.y = ev->y;
3526                 wc.width = ev->width;
3527                 wc.height = ev->height;
3528                 wc.border_width = ev->border_width;
3529                 wc.sibling = ev->above;
3530                 wc.stack_mode = ev->detail;
3531                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3532         } else {
3533                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3534                     ev->window);
3535                 if (win->floating) {
3536                         if (ev->value_mask & CWX)
3537                                 win->g.x = ev->x;
3538                         if (ev->value_mask & CWY)
3539                                 win->g.y = ev->y;
3540                         if (ev->value_mask & CWWidth)
3541                                 win->g.w = ev->width;
3542                         if (ev->value_mask & CWHeight)
3543                                 win->g.h = ev->height;
3544                         if (win->ws->r != NULL) {
3545                                 /* this seems to be full screen */
3546                                 if (win->g.w >= WIDTH(win->ws->r)) {
3547                                         win->g.x = 0;
3548                                         win->g.w = WIDTH(win->ws->r);
3549                                         ev->value_mask |= CWX | CWWidth;
3550                                 }
3551                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3552                                         /* kill border */
3553                                         win->g.y = 0;
3554                                         win->g.h = HEIGHT(win->ws->r);
3555                                         ev->value_mask |= CWY | CWHeight;
3556                                 }
3557                         }
3558                         if ((ev->value_mask & (CWX | CWY)) &&
3559                             !(ev->value_mask & (CWWidth | CWHeight)))
3560                                 config_win(win);
3561                         XMoveResizeWindow(display, win->id,
3562                             win->g.x, win->g.y, win->g.w, win->g.h);
3563                 } else
3564                         config_win(win);
3565         }
3566 }
3567
3568 void
3569 configurenotify(XEvent *e)
3570 {
3571         struct ws_win           *win;
3572         long                    mask;
3573
3574         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3575             e->xconfigure.window);
3576
3577         XMapWindow(display, e->xconfigure.window);
3578         win = find_window(e->xconfigure.window);
3579         if (win) {
3580                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3581                 adjust_font(win);
3582                 XMapWindow(display, win->id);
3583                 if (font_adjusted)
3584                         stack();
3585         }
3586 }
3587
3588 void
3589 destroynotify(XEvent *e)
3590 {
3591         struct ws_win           *win, *winfocus = NULL;
3592         struct workspace        *ws;
3593         struct ws_win_list      *wl;
3594
3595         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3596
3597         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3598
3599         SWM_EV_PROLOGUE(display);
3600
3601         if ((win = find_window(ev->window)) != NULL) {
3602                 /* find a window to focus */
3603                 ws = win->ws;
3604                 wl = &ws->winlist;
3605
3606                 /* if we are transient give focus to parent */
3607                 if (win->transient)
3608                         winfocus = find_window(win->transient);
3609                 else if (ws->focus == win) {
3610                         /* if in max_stack try harder */
3611                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3612                                 if (win != ws->focus && win != ws->focus_prev)
3613                                         winfocus = ws->focus_prev;
3614
3615                         /* fallback and normal handling */
3616                         if (winfocus == NULL) {
3617                                 if (TAILQ_FIRST(wl) == win)
3618                                         winfocus = TAILQ_NEXT(win, entry);
3619                                 else {
3620                                         winfocus = TAILQ_PREV(ws->focus,
3621                                             ws_win_list, entry);
3622                                         if (winfocus == NULL)
3623                                                 winfocus = TAILQ_LAST(wl,
3624                                                     ws_win_list);
3625                                 }
3626                         }
3627                 }
3628                 ignore_enter = 1;
3629                 unmanage_window(win);
3630                 stack();
3631                 if (winfocus)
3632                         focus_win(winfocus);
3633                 ignore_enter = 0;
3634         }
3635
3636         SWM_EV_EPILOGUE(display);
3637 }
3638
3639 void
3640 enternotify(XEvent *e)
3641 {
3642         XCrossingEvent          *ev = &e->xcrossing;
3643         struct ws_win           *win;
3644
3645         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3646
3647         if (ignore_enter) {
3648                 /* eat event(r) to prevent autofocus */
3649                 ignore_enter = 0;
3650                 return;
3651         }
3652         /*
3653          * happens when a window is created or destroyed and the border
3654          * crosses the mouse pointer
3655          */
3656         if (QLength(display))
3657                 return;
3658
3659         if ((win = find_window(ev->window)) != NULL) {
3660                 if (win->ws->focus == win)
3661                         return;
3662                 focus_win(win);
3663         }
3664 }
3665
3666 void
3667 focusin(XEvent *e)
3668 {
3669         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3670 }
3671
3672 void
3673 focusout(XEvent *e)
3674 {
3675         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3676 }
3677
3678 void
3679 mapnotify(XEvent *e)
3680 {
3681         struct ws_win           *win;
3682         XMapEvent               *ev = &e->xmap;
3683
3684         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3685
3686         SWM_EV_PROLOGUE(display);
3687
3688         win = find_window(ev->window);
3689         if (win)
3690                 set_win_state(win, NormalState);
3691
3692         SWM_EV_EPILOGUE(display);
3693 }
3694
3695 void
3696 mappingnotify(XEvent *e)
3697 {
3698         XMappingEvent           *ev = &e->xmapping;
3699
3700         XRefreshKeyboardMapping(ev);
3701         if (ev->request == MappingKeyboard)
3702                 grabkeys();
3703 }
3704
3705 void
3706 maprequest(XEvent *e)
3707 {
3708         struct ws_win           *win;
3709         struct swm_region       *r;
3710
3711         XMapRequestEvent        *ev = &e->xmaprequest;
3712         XWindowAttributes       wa;
3713
3714         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3715             e->xmaprequest.window);
3716
3717         SWM_EV_PROLOGUE(display);
3718
3719         if (!XGetWindowAttributes(display, ev->window, &wa))
3720                 goto done;
3721         if (wa.override_redirect)
3722                 goto done;
3723
3724         manage_window(e->xmaprequest.window);
3725
3726         stack();
3727
3728         /* make new win focused */
3729         win = find_window(ev->window);
3730         r = root_to_region(win->wa.root);
3731
3732         if (win->ws == r->ws)
3733                 focus_win(win);
3734
3735 done:
3736         SWM_EV_EPILOGUE(display);
3737 }
3738
3739 void
3740 propertynotify(XEvent *e)
3741 {
3742         struct ws_win           *win;
3743         XPropertyEvent          *ev = &e->xproperty;
3744
3745         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3746             ev->window);
3747
3748         if (ev->state == PropertyDelete)
3749                 return; /* ignore */
3750         win = find_window(ev->window);
3751         if (win == NULL)
3752                 return;
3753
3754         switch (ev->atom) {
3755         case XA_WM_NORMAL_HINTS:
3756 #if 0
3757                 long            mask;
3758                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3759                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3760                 if (win->sh.flags & PMinSize) {
3761                         win->g.w = win->sh.min_width;
3762                         win->g.h = win->sh.min_height;
3763                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3764                 }
3765                 XMoveResizeWindow(display, win->id,
3766                     win->g.x, win->g.y, win->g.w, win->g.h);
3767 #endif
3768                 break;
3769         default:
3770                 break;
3771         }
3772 }
3773
3774 void
3775 unmapnotify(XEvent *e)
3776 {
3777         struct ws_win           *win, *winfocus = NULL;
3778         struct workspace        *ws;
3779
3780         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3781
3782         SWM_EV_PROLOGUE(display);
3783
3784         /* determine if we need to help unmanage this window */
3785         win = find_window(e->xunmap.window);
3786         if (win == NULL)
3787                 goto done;
3788
3789         if (getstate(e->xunmap.window) == NormalState) {
3790                 /*
3791                  * this window does not have a destroy event but but it is no
3792                  * longer visible due to the app unmapping it so unmanage it
3793                  */
3794
3795                 ws = win->ws;
3796                 /* if we are max_stack try harder to focus on something */
3797                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3798                         if (win->transient)
3799                                 winfocus = find_window(win->transient);
3800                         else if (win != ws->focus && win != ws->focus_prev)
3801                                 winfocus = ws->focus_prev;
3802                 }
3803
3804                 /* normal and fallback if haven't found anything to focus on */
3805                 if (winfocus == NULL) {
3806                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3807                         if (TAILQ_FIRST(&ws->winlist) == win)
3808                                 winfocus = TAILQ_NEXT(win, entry);
3809                         else {
3810                                 if (ws->focus)
3811                                         winfocus = TAILQ_PREV(ws->focus,
3812                                             ws_win_list, entry);
3813                                 if (winfocus == NULL)
3814                                         winfocus = TAILQ_LAST(&ws->winlist,
3815                                             ws_win_list);
3816                         }
3817                 }
3818
3819                 /* trash window and refocus */
3820                 unmanage_window(win);
3821                 ignore_enter = 1;
3822                 stack();
3823                 focus_win(winfocus);
3824                 ignore_enter = 0;
3825         }
3826
3827 done:
3828         SWM_EV_EPILOGUE(display);
3829 }
3830
3831 void
3832 visibilitynotify(XEvent *e)
3833 {
3834         int                     i;
3835         struct swm_region       *r;
3836
3837         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3838             e->xvisibility.window);
3839         if (e->xvisibility.state == VisibilityUnobscured)
3840                 for (i = 0; i < ScreenCount(display); i++)
3841                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3842                                 if (e->xvisibility.window == r->bar_window)
3843                                         bar_update();
3844 }
3845
3846 int
3847 xerror_start(Display *d, XErrorEvent *ee)
3848 {
3849         other_wm = 1;
3850         return (-1);
3851 }
3852
3853 int
3854 xerror(Display *d, XErrorEvent *ee)
3855 {
3856         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3857         return (-1);
3858 }
3859
3860 int
3861 active_wm(void)
3862 {
3863         other_wm = 0;
3864         xerrorxlib = XSetErrorHandler(xerror_start);
3865
3866         /* this causes an error if some other window manager is running */
3867         XSelectInput(display, DefaultRootWindow(display),
3868             SubstructureRedirectMask);
3869         XSync(display, False);
3870         if (other_wm)
3871                 return (1);
3872
3873         XSetErrorHandler(xerror);
3874         XSync(display, False);
3875         return (0);
3876 }
3877
3878 void
3879 new_region(struct swm_screen *s, int x, int y, int w, int h)
3880 {
3881         struct swm_region       *r, *n;
3882         struct workspace        *ws = NULL;
3883         int                     i;
3884
3885         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3886              s->idx, w, h, x, y);
3887
3888         /* remove any conflicting regions */
3889         n = TAILQ_FIRST(&s->rl);
3890         while (n) {
3891                 r = n;
3892                 n = TAILQ_NEXT(r, entry);
3893                 if (X(r) < (x + w) &&
3894                     (X(r) + WIDTH(r)) > x &&
3895                     Y(r) < (y + h) &&
3896                     (Y(r) + HEIGHT(r)) > y) {
3897                         XDestroyWindow(display, r->bar_window);
3898                         TAILQ_REMOVE(&s->rl, r, entry);
3899                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3900                 }
3901         }
3902
3903         /* search old regions for one to reuse */
3904
3905         /* size + location match */
3906         TAILQ_FOREACH(r, &s->orl, entry)
3907                 if (X(r) == x && Y(r) == y &&
3908                     HEIGHT(r) == h && WIDTH(r) == w)
3909                         break;
3910
3911         /* size match */
3912         TAILQ_FOREACH(r, &s->orl, entry)
3913                 if (HEIGHT(r) == h && WIDTH(r) == w)
3914                         break;
3915
3916         if (r != NULL) {
3917                 TAILQ_REMOVE(&s->orl, r, entry);
3918                 /* try to use old region's workspace */
3919                 if (r->ws->r == NULL)
3920                         ws = r->ws;
3921         } else
3922                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3923                         errx(1, "calloc: failed to allocate memory for screen");
3924
3925         /* if we don't have a workspace already, find one */
3926         if (ws == NULL) {
3927                 for (i = 0; i < SWM_WS_MAX; i++)
3928                         if (s->ws[i].r == NULL) {
3929                                 ws = &s->ws[i];
3930                                 break;
3931                         }
3932         }
3933
3934         if (ws == NULL)
3935                 errx(1, "no free workspaces\n");
3936
3937         X(r) = x;
3938         Y(r) = y;
3939         WIDTH(r) = w;
3940         HEIGHT(r) = h;
3941         r->s = s;
3942         r->ws = ws;
3943         ws->r = r;
3944         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3945 }
3946
3947 void
3948 scan_xrandr(int i)
3949 {
3950 #ifdef SWM_XRR_HAS_CRTC
3951         XRRCrtcInfo             *ci;
3952         XRRScreenResources      *sr;
3953         int                     c;
3954         int                     ncrtc = 0;
3955 #endif /* SWM_XRR_HAS_CRTC */
3956         struct swm_region       *r;
3957
3958
3959         if (i >= ScreenCount(display))
3960                 errx(1, "invalid screen");
3961
3962         /* remove any old regions */
3963         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3964                 r->ws->old_r = r->ws->r = NULL;
3965                 XDestroyWindow(display, r->bar_window);
3966                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3967                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3968         }
3969
3970         /* map virtual screens onto physical screens */
3971 #ifdef SWM_XRR_HAS_CRTC
3972         outputs = 0;
3973         if (xrandr_support) {
3974                 sr = XRRGetScreenResources(display, screens[i].root);
3975                 if (sr == NULL)
3976                         new_region(&screens[i], 0, 0,
3977                             DisplayWidth(display, i),
3978                             DisplayHeight(display, i));
3979                 else
3980                         ncrtc = sr->ncrtc;
3981
3982                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3983                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3984                         if (ci->noutput == 0)
3985                                 continue;
3986                         outputs++;
3987
3988                         if (ci != NULL && ci->mode == None)
3989                                 new_region(&screens[i], 0, 0,
3990                                     DisplayWidth(display, i),
3991                                     DisplayHeight(display, i));
3992                         else
3993                                 new_region(&screens[i],
3994                                     ci->x, ci->y, ci->width, ci->height);
3995                 }
3996                 if (ci)
3997                         XRRFreeCrtcInfo(ci);
3998                 XRRFreeScreenResources(sr);
3999         } else
4000 #endif /* SWM_XRR_HAS_CRTC */
4001         {
4002                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
4003                     DisplayHeight(display, i));
4004         }
4005 }
4006
4007 void
4008 screenchange(XEvent *e) {
4009         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
4010         struct swm_region               *r;
4011         int                             i;
4012
4013         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
4014
4015         if (!XRRUpdateConfiguration(e))
4016                 return;
4017
4018         /* silly event doesn't include the screen index */
4019         for (i = 0; i < ScreenCount(display); i++)
4020                 if (screens[i].root == xe->root)
4021                         break;
4022         if (i >= ScreenCount(display))
4023                 errx(1, "screenchange: screen not found\n");
4024
4025         /* brute force for now, just re-enumerate the regions */
4026         scan_xrandr(i);
4027
4028         /* add bars to all regions */
4029         for (i = 0; i < ScreenCount(display); i++)
4030                 TAILQ_FOREACH(r, &screens[i].rl, entry)
4031                         bar_setup(r);
4032         stack();
4033 }
4034
4035 void
4036 setup_screens(void)
4037 {
4038         Window                  d1, d2, *wins = NULL;
4039         XWindowAttributes       wa;
4040         unsigned int            no;
4041         int                     i, j, k;
4042         int                     errorbase, major, minor;
4043         struct workspace        *ws;
4044         int                     ws_idx_atom;
4045         long                    state, manage;
4046
4047         if ((screens = calloc(ScreenCount(display),
4048              sizeof(struct swm_screen))) == NULL)
4049                 errx(1, "calloc: screens");
4050
4051         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4052
4053         /* initial Xrandr setup */
4054         xrandr_support = XRRQueryExtension(display,
4055             &xrandr_eventbase, &errorbase);
4056         if (xrandr_support)
4057                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4058                         xrandr_support = 0;
4059
4060         /* map physical screens */
4061         for (i = 0; i < ScreenCount(display); i++) {
4062                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4063                 screens[i].idx = i;
4064                 TAILQ_INIT(&screens[i].rl);
4065                 TAILQ_INIT(&screens[i].orl);
4066                 screens[i].root = RootWindow(display, i);
4067
4068                 /* set default colors */
4069                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4070                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4071                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4072                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4073                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4074
4075                 /* init all workspaces */
4076                 /* XXX these should be dynamically allocated too */
4077                 for (j = 0; j < SWM_WS_MAX; j++) {
4078                         ws = &screens[i].ws[j];
4079                         ws->idx = j;
4080                         ws->restack = 1;
4081                         ws->focus = NULL;
4082                         ws->r = NULL;
4083                         ws->old_r = NULL;
4084                         TAILQ_INIT(&ws->winlist);
4085
4086                         for (k = 0; layouts[k].l_stack != NULL; k++)
4087                                 if (layouts[k].l_config != NULL)
4088                                         layouts[k].l_config(ws,
4089                                             SWM_ARG_ID_STACKINIT);
4090                         ws->cur_layout = &layouts[0];
4091                 }
4092                 /* grab existing windows (before we build the bars)*/
4093                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4094                         continue;
4095
4096                 scan_xrandr(i);
4097
4098                 if (xrandr_support)
4099                         XRRSelectInput(display, screens[i].root,
4100                             RRScreenChangeNotifyMask);
4101
4102                 /* attach windows to a region */
4103                 /* normal windows */
4104                 for (j = 0; j < no; j++) {
4105                         XGetWindowAttributes(display, wins[j], &wa);
4106                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4107                             wa.override_redirect ||
4108                             XGetTransientForHint(display, wins[j], &d1))
4109                                 continue;
4110
4111                         state = getstate(wins[j]);
4112                         manage = state == NormalState || state == IconicState;
4113                         if (wa.map_state == IsViewable || manage)
4114                                 manage_window(wins[j]);
4115                 }
4116                 /* transient windows */
4117                 for (j = 0; j < no; j++) {
4118                         if (!XGetWindowAttributes(display, wins[j], &wa))
4119                                 continue;
4120
4121                         state = getstate(wins[j]);
4122                         manage = state == NormalState || state == IconicState;
4123                         if (XGetTransientForHint(display, wins[j], &d1) &&
4124                             manage)
4125                                 manage_window(wins[j]);
4126                 }
4127                 if (wins) {
4128                         XFree(wins);
4129                         wins = NULL;
4130                 }
4131         }
4132 }
4133 void
4134 setup_globals(void)
4135 {
4136         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4137             == NULL)
4138                 err(1, "setup_globals: strdup");
4139         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4140             == NULL)
4141                 err(1, "setup_globals: strdup");
4142         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4143             == NULL)
4144                 err(1, "setup_globals: strdup");
4145         if ((spawn_term[0] = strdup("xterm")) == NULL)
4146                 err(1, "setup_globals: strdup");
4147 }
4148
4149 void
4150 workaround(void)
4151 {
4152         int                     i;
4153         Atom                    netwmcheck, netwmname, utf8_string;
4154         Window                  root;
4155
4156         /* work around sun jdk bugs, code from wmname */
4157         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4158         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4159         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4160         for (i = 0; i < ScreenCount(display); i++) {
4161                 root = screens[i].root;
4162                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4163                     PropModeReplace, (unsigned char *)&root, 1);
4164                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4165                     PropModeReplace, "LG3D", strlen("LG3D"));
4166         }
4167 }
4168
4169 int
4170 main(int argc, char *argv[])
4171 {
4172         struct passwd           *pwd;
4173         struct swm_region       *r, *rr;
4174         struct ws_win           *winfocus = NULL;
4175         char                    conf[PATH_MAX], *cfile = NULL;
4176         struct stat             sb;
4177         XEvent                  e;
4178         int                     xfd, i;
4179         fd_set                  rd;
4180
4181         start_argv = argv;
4182         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4183             SWM_VERSION, cvstag);
4184         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4185                 warnx("no locale support");
4186
4187         if (!(display = XOpenDisplay(0)))
4188                 errx(1, "can not open display");
4189
4190         if (active_wm())
4191                 errx(1, "other wm running");
4192
4193         /* handle some signale */
4194         installsignal(SIGINT, "INT");
4195         installsignal(SIGHUP, "HUP");
4196         installsignal(SIGQUIT, "QUIT");
4197         installsignal(SIGTERM, "TERM");
4198         installsignal(SIGCHLD, "CHLD");
4199
4200         astate = XInternAtom(display, "WM_STATE", False);
4201         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4202         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4203
4204         /* look for local and global conf file */
4205         pwd = getpwuid(getuid());
4206         if (pwd == NULL)
4207                 errx(1, "invalid user %d", getuid());
4208
4209         setup_screens();
4210         setup_globals();
4211         setup_keys();
4212         setup_quirks();
4213         setup_spawn();
4214
4215         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4216         if (stat(conf, &sb) != -1) {
4217                 if (S_ISREG(sb.st_mode))
4218                         cfile = conf;
4219         } else {
4220                 /* try global conf file */
4221                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4222                 if (!stat(conf, &sb))
4223                         if (S_ISREG(sb.st_mode))
4224                                 cfile = conf;
4225         }
4226         if (cfile)
4227                 conf_load(cfile);
4228
4229         /* setup all bars */
4230         for (i = 0; i < ScreenCount(display); i++)
4231                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4232                         if (winfocus == NULL)
4233                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4234                         bar_setup(r);
4235                 }
4236
4237         /* set some values to work around bad programs */
4238         workaround();
4239
4240         grabkeys();
4241         stack();
4242
4243         xfd = ConnectionNumber(display);
4244         while (running) {
4245                 while (XPending(display)) {
4246                         XNextEvent(display, &e);
4247                         if (running == 0)
4248                                 goto done;
4249                         if (e.type < LASTEvent) {
4250                                 dumpevent(&e);
4251                                 if (handler[e.type])
4252                                         handler[e.type](&e);
4253                                 else
4254                                         DNPRINTF(SWM_D_EVENT,
4255                                             "win: %lu unknown event: %d\n",
4256                                             e.xany.window, e.type);
4257                         } else {
4258                                 switch (e.type - xrandr_eventbase) {
4259                                 case RRScreenChangeNotify:
4260                                         screenchange(&e);
4261                                         break;
4262                                 default:
4263                                         DNPRINTF(SWM_D_EVENT,
4264                                             "win: %lu unknown xrandr event: "
4265                                             "%d\n", e.xany.window, e.type);
4266                                         break;
4267                                 }
4268                         }
4269                 }
4270
4271                 /* if we are being restarted go focus on first window */
4272                 if (winfocus) {
4273                         rr = TAILQ_FIRST(&screens[0].rl);
4274                         /* move pointer to first screen if multi screen */
4275                         if (ScreenCount(display) > 1 || outputs > 1)
4276                                 XWarpPointer(display, None, rr->s[0].root,
4277                                     0, 0, 0, 0, rr->g.x,
4278                                     rr->g.y + bar_enabled ? bar_height : 0);
4279
4280                         focus_win(winfocus);
4281                         winfocus = NULL;
4282                         continue;
4283                 }
4284
4285                 FD_ZERO(&rd);
4286                 FD_SET(xfd, &rd);
4287                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4288                         if (errno != EINTR)
4289                                 DNPRINTF(SWM_D_MISC, "select failed");
4290                 if (running == 0)
4291                         goto done;
4292                 if (bar_alarm) {
4293                         bar_alarm = 0;
4294                         bar_update();
4295                 }
4296         }
4297 done:
4298         bar_extra_stop();
4299
4300         XCloseDisplay(display);
4301
4302         return (0);
4303 }