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