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