scrotwm.c

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