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