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