scrotwm.c

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