scrotwm.c

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