scrotwm.c

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