scrotwm.c

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