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 #define SWM_EV_PROLOGUE(x)      do { XGrabServer(x); } while (0)
 152 #define SWM_EV_EPILOGUE(x)      do { XUngrabServer(x); XFlush(x); } while (0)
 153
 154 #ifndef SWM_LIB
 155 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 156 #endif
 157
 158 char                    **start_argv;
 159 Atom                    astate;
 160 Atom                    aprot;
 161 Atom                    adelete;
 162 volatile sig_atomic_t   running = 1;
 163 int                     outputs = 0;
 164 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 165 int                     other_wm;
 166 int                     ss_enabled = 0;
 167 int                     xrandr_support;
 168 int                     xrandr_eventbase;
 169 int                     ignore_enter = 0;
 170 unsigned int            numlockmask = 0;
 171 Display                 *display;
 172
 173 int                     cycle_empty = 0;
 174 int                     cycle_visible = 0;
 175 int                     term_width = 0;
 176 int                     font_adjusted = 0;
 177 unsigned int            mod_key = MODKEY;
 178
 179 /* dialog windows */
 180 double                  dialog_ratio = .6;
 181 /* status bar */
 182 #define SWM_BAR_MAX     (256)
 183 char                    *bar_argv[] = { NULL, NULL };
 184 int                     bar_pipe[2];
 185 char                    bar_ext[SWM_BAR_MAX];
 186 char                    bar_vertext[SWM_BAR_MAX];
 187 int                     bar_version = 0;
 188 sig_atomic_t            bar_alarm = 0;
 189 int                     bar_delay = 30;
 190 int                     bar_enabled = 1;
 191 int                     bar_extra = 1;
 192 int                     bar_extra_running = 0;
 193 int                     bar_verbose = 1;
 194 int                     bar_height = 0;
 195 int                     stack_enabled = 1;
 196 int                     clock_enabled = 1;
 197 int                     title_name_enabled = 0;
 198 int                     title_class_enabled = 0;
 199 pid_t                   bar_pid;
 200 GC                      bar_gc;
 201 XGCValues               bar_gcv;
 202 int                     bar_fidx = 0;
 203 XFontStruct             *bar_fs;
 204 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 205 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 206
 207 #define SWM_MENU_FN     (2)
 208 #define SWM_MENU_NB     (4)
 209 #define SWM_MENU_NF     (6)
 210 #define SWM_MENU_SB     (8)
 211 #define SWM_MENU_SF     (10)
 212
 213 /* layout manager data */
 214 struct swm_geometry {
 215         int                     x;
 216         int                     y;
 217         int                     w;
 218         int                     h;
 219 };
 220
 221 struct swm_screen;
 222 struct workspace;
 223
 224 /* virtual "screens" */
 225 struct swm_region {
 226         TAILQ_ENTRY(swm_region) entry;
 227         struct swm_geometry     g;
 228         struct workspace        *ws;    /* current workspace on this region */
 229         struct swm_screen       *s;     /* screen idx */
 230         Window                  bar_window;
 231 };
 232 TAILQ_HEAD(swm_region_list, swm_region);
 233
 234 struct ws_win {
 235         TAILQ_ENTRY(ws_win)     entry;
 236         Window                  id;
 237         struct swm_geometry     g;
 238         int                     floating;
 239         int                     transient;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         unsigned long           quirks;
 246         struct workspace        *ws;    /* always valid */
 247         struct swm_screen       *s;     /* always valid, never changes */
 248         XWindowAttributes       wa;
 249         XSizeHints              sh;
 250         XClassHint              ch;
 251 };
 252 TAILQ_HEAD(ws_win_list, ws_win);
 253
 254 /* user/key callable function IDs */
 255 enum keyfuncid {
 256         kf_cycle_layout,
 257         kf_stack_reset,
 258         kf_master_shrink,
 259         kf_master_grow,
 260         kf_master_add,
 261         kf_master_del,
 262         kf_stack_inc,
 263         kf_stack_dec,
 264         kf_swap_main,
 265         kf_focus_next,
 266         kf_focus_prev,
 267         kf_swap_next,
 268         kf_swap_prev,
 269         kf_spawn_term,
 270         kf_spawn_menu,
 271         kf_quit,
 272         kf_restart,
 273         kf_focus_main,
 274         kf_ws_1,
 275         kf_ws_2,
 276         kf_ws_3,
 277         kf_ws_4,
 278         kf_ws_5,
 279         kf_ws_6,
 280         kf_ws_7,
 281         kf_ws_8,
 282         kf_ws_9,
 283         kf_ws_10,
 284         kf_ws_next,
 285         kf_ws_prev,
 286         kf_screen_next,
 287         kf_screen_prev,
 288         kf_mvws_1,
 289         kf_mvws_2,
 290         kf_mvws_3,
 291         kf_mvws_4,
 292         kf_mvws_5,
 293         kf_mvws_6,
 294         kf_mvws_7,
 295         kf_mvws_8,
 296         kf_mvws_9,
 297         kf_mvws_10,
 298         kf_bar_toggle,
 299         kf_wind_kill,
 300         kf_wind_del,
 301         kf_screenshot_all,
 302         kf_screenshot_wind,
 303         kf_float_toggle,
 304         kf_version,
 305         kf_spawn_lock,
 306         kf_spawn_initscr,
 307         kf_spawn_custom,
 308         kf_invalid
 309 };
 310
 311 /* layout handlers */
 312 void    stack(void);
 313 void    vertical_config(struct workspace *, int);
 314 void    vertical_stack(struct workspace *, struct swm_geometry *);
 315 void    horizontal_config(struct workspace *, int);
 316 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 317 void    max_stack(struct workspace *, struct swm_geometry *);
 318
 319 void    grabbuttons(struct ws_win *, int);
 320 void    new_region(struct swm_screen *, int, int, int, int);
 321
 322 struct layout {
 323         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 324         void            (*l_config)(struct workspace *, int);
 325         u_int32_t       flags;
 326 #define SWM_L_FOCUSPREV         (1<<0)
 327 #define SWM_L_MAPONFOCUS        (1<<1)
 328         char            *name;
 329 } layouts[] =  {
 330         /* stack,               configure */
 331         { vertical_stack,       vertical_config,        0,      "[|]" },
 332         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 333         { max_stack,            NULL,
 334           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 335         { NULL,                 NULL,                   0},
 336 };
 337
 338 #define SWM_H_SLICE             (32)
 339 #define SWM_V_SLICE             (32)
 340
 341 /* define work spaces */
 342 struct workspace {
 343         int                     idx;            /* workspace index */
 344         int                     restack;        /* restack on switch */
 345         struct layout           *cur_layout;    /* current layout handlers */
 346         struct ws_win           *focus;         /* may be NULL */
 347         struct ws_win           *focus_prev;    /* may be NULL */
 348         struct swm_region       *r;             /* may be NULL */
 349         struct swm_region       *old_r;         /* may be NULL */
 350         struct ws_win_list      winlist;        /* list of windows in ws */
 351
 352         /* stacker state */
 353         struct {
 354                                 int horizontal_msize;
 355                                 int horizontal_mwin;
 356                                 int horizontal_stacks;
 357                                 int vertical_msize;
 358                                 int vertical_mwin;
 359                                 int vertical_stacks;
 360         } l_state;
 361 };
 362
 363 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 364           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 365
 366 /* physical screen mapping */
 367 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 368 struct swm_screen {
 369         int                     idx;            /* screen index */
 370         struct swm_region_list  rl;     /* list of regions on this screen */
 371         struct swm_region_list  orl;    /* list of old regions */
 372         Window                  root;
 373         struct workspace        ws[SWM_WS_MAX];
 374
 375         /* colors */
 376         struct {
 377                 unsigned long   color;
 378                 char            *name;
 379         } c[SWM_S_COLOR_MAX];
 380 };
 381 struct swm_screen       *screens;
 382 int                     num_screens;
 383
 384 /* args to functions */
 385 union arg {
 386         int                     id;
 387 #define SWM_ARG_ID_FOCUSNEXT    (0)
 388 #define SWM_ARG_ID_FOCUSPREV    (1)
 389 #define SWM_ARG_ID_FOCUSMAIN    (2)
 390 #define SWM_ARG_ID_SWAPNEXT     (3)
 391 #define SWM_ARG_ID_SWAPPREV     (4)
 392 #define SWM_ARG_ID_SWAPMAIN     (5)
 393 #define SWM_ARG_ID_MASTERSHRINK (6)
 394 #define SWM_ARG_ID_MASTERGROW   (7)
 395 #define SWM_ARG_ID_MASTERADD    (8)
 396 #define SWM_ARG_ID_MASTERDEL    (9)
 397 #define SWM_ARG_ID_STACKRESET   (10)
 398 #define SWM_ARG_ID_STACKINIT    (11)
 399 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 400 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 401 #define SWM_ARG_ID_CYCLESC_UP   (14)
 402 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 403 #define SWM_ARG_ID_STACKINC     (16)
 404 #define SWM_ARG_ID_STACKDEC     (17)
 405 #define SWM_ARG_ID_SS_ALL       (0)
 406 #define SWM_ARG_ID_SS_WINDOW    (1)
 407 #define SWM_ARG_ID_DONTCENTER   (0)
 408 #define SWM_ARG_ID_CENTER       (1)
 409 #define SWM_ARG_ID_KILLWINDOW   (0)
 410 #define SWM_ARG_ID_DELETEWINDOW (1)
 411         char                    **argv;
 412 };
 413
 414 /* quirks */
 415 struct quirk {
 416         char                    *class;
 417         char                    *name;
 418         unsigned long           quirk;
 419 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 420 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 421 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 422 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 423 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 424 };
 425 int                             quirks_size = 0, quirks_length = 0;
 426 struct quirk                    *quirks = NULL;
 427
 428 /* events */
 429 #ifdef SWM_DEBUG
 430 void
 431 dumpevent(XEvent *e)
 432 {
 433         char                    *name = NULL;
 434
 435         switch (e->type) {
 436         case KeyPress:
 437                 name = "KeyPress";
 438                 break;
 439         case KeyRelease:
 440                 name = "KeyRelease";
 441                 break;
 442         case ButtonPress:
 443                 name = "ButtonPress";
 444                 break;
 445         case ButtonRelease:
 446                 name = "ButtonRelease";
 447                 break;
 448         case MotionNotify:
 449                 name = "MotionNotify";
 450                 break;
 451         case EnterNotify:
 452                 name = "EnterNotify";
 453                 break;
 454         case LeaveNotify:
 455                 name = "LeaveNotify";
 456                 break;
 457         case FocusIn:
 458                 name = "FocusIn";
 459                 break;
 460         case FocusOut:
 461                 name = "FocusOut";
 462                 break;
 463         case KeymapNotify:
 464                 name = "KeymapNotify";
 465                 break;
 466         case Expose:
 467                 name = "Expose";
 468                 break;
 469         case GraphicsExpose:
 470                 name = "GraphicsExpose";
 471                 break;
 472         case NoExpose:
 473                 name = "NoExpose";
 474                 break;
 475         case VisibilityNotify:
 476                 name = "VisibilityNotify";
 477                 break;
 478         case CreateNotify:
 479                 name = "CreateNotify";
 480                 break;
 481         case DestroyNotify:
 482                 name = "DestroyNotify";
 483                 break;
 484         case UnmapNotify:
 485                 name = "UnmapNotify";
 486                 break;
 487         case MapNotify:
 488                 name = "MapNotify";
 489                 break;
 490         case MapRequest:
 491                 name = "MapRequest";
 492                 break;
 493         case ReparentNotify:
 494                 name = "ReparentNotify";
 495                 break;
 496         case ConfigureNotify:
 497                 name = "ConfigureNotify";
 498                 break;
 499         case ConfigureRequest:
 500                 name = "ConfigureRequest";
 501                 break;
 502         case GravityNotify:
 503                 name = "GravityNotify";
 504                 break;
 505         case ResizeRequest:
 506                 name = "ResizeRequest";
 507                 break;
 508         case CirculateNotify:
 509                 name = "CirculateNotify";
 510                 break;
 511         case CirculateRequest:
 512                 name = "CirculateRequest";
 513                 break;
 514         case PropertyNotify:
 515                 name = "PropertyNotify";
 516                 break;
 517         case SelectionClear:
 518                 name = "SelectionClear";
 519                 break;
 520         case SelectionRequest:
 521                 name = "SelectionRequest";
 522                 break;
 523         case SelectionNotify:
 524                 name = "SelectionNotify";
 525                 break;
 526         case ColormapNotify:
 527                 name = "ColormapNotify";
 528                 break;
 529         case ClientMessage:
 530                 name = "ClientMessage";
 531                 break;
 532         case MappingNotify:
 533                 name = "MappingNotify";
 534                 break;
 535         }
 536
 537         if (name)
 538                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 539                     "remaining\n",
 540                     e->xany.window, name, e->type, QLength(display));
 541         else
 542                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 543                     "remaining\n",
 544                     e->xany.window, e->type, QLength(display));
 545 }
 546 #else
 547 #define dumpevent(e)
 548 #endif /* SWM_DEBUG */
 549
 550 void                    expose(XEvent *);
 551 void                    keypress(XEvent *);
 552 void                    buttonpress(XEvent *);
 553 void                    configurerequest(XEvent *);
 554 void                    configurenotify(XEvent *);
 555 void                    destroynotify(XEvent *);
 556 void                    enternotify(XEvent *);
 557 void                    focusin(XEvent *);
 558 void                    focusout(XEvent *);
 559 void                    mapnotify(XEvent *);
 560 void                    maprequest(XEvent *);
 561 void                    propertynotify(XEvent *);
 562 void                    unmapnotify(XEvent *);
 563 void                    visibilitynotify(XEvent *);
 564
 565 void                    (*handler[LASTEvent])(XEvent *) = {
 566                                 [Expose] = expose,
 567                                 [KeyPress] = keypress,
 568                                 [ButtonPress] = buttonpress,
 569                                 [ConfigureRequest] = configurerequest,
 570                                 [ConfigureNotify] = configurenotify,
 571                                 [DestroyNotify] = destroynotify,
 572                                 [EnterNotify] = enternotify,
 573                                 [FocusIn] = focusin,
 574                                 [FocusOut] = focusout,
 575                                 [MapNotify] = mapnotify,
 576                                 [MapRequest] = maprequest,
 577                                 [PropertyNotify] = propertynotify,
 578                                 [UnmapNotify] = unmapnotify,
 579                                 [VisibilityNotify] = visibilitynotify,
 580 };
 581
 582 void
 583 sighdlr(int sig)
 584 {
 585         pid_t                   pid;
 586
 587         switch (sig) {
 588         case SIGCHLD:
 589                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 590                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 591                         if (pid <= 0)
 592                                 break;
 593                 }
 594                 break;
 595         case SIGINT:
 596         case SIGTERM:
 597         case SIGHUP:
 598         case SIGQUIT:
 599                 running = 0;
 600                 break;
 601         }
 602 }
 603
 604 void
 605 installsignal(int sig, char *name)
 606 {
 607         struct sigaction        sa;
 608
 609         sa.sa_handler = sighdlr;
 610         sigemptyset(&sa.sa_mask);
 611         sa.sa_flags = 0;
 612         if (sigaction(sig, &sa, NULL) == -1)
 613                 err(1, "could not install %s handler", name);
 614 }
 615
 616 unsigned long
 617 name_to_color(char *colorname)
 618 {
 619         Colormap                cmap;
 620         Status                  status;
 621         XColor                  screen_def, exact_def;
 622         unsigned long           result = 0;
 623         char                    cname[32] = "#";
 624
 625         cmap = DefaultColormap(display, screens[0].idx);
 626         status = XAllocNamedColor(display, cmap, colorname,
 627             &screen_def, &exact_def);
 628         if (!status) {
 629                 strlcat(cname, colorname + 2, sizeof cname - 1);
 630                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 631                     &exact_def);
 632         }
 633         if (status)
 634                 result = screen_def.pixel;
 635         else
 636                 fprintf(stderr, "color '%s' not found.\n", colorname);
 637
 638         return (result);
 639 }
 640
 641 void
 642 setscreencolor(char *val, int i, int c)
 643 {
 644         if (i > 0 && i <= ScreenCount(display)) {
 645                 screens[i - 1].c[c].color = name_to_color(val);
 646                 free(screens[i - 1].c[c].name);
 647                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 648                         errx(1, "strdup");
 649         } else if (i == -1) {
 650                 for (i = 0; i < ScreenCount(display); i++) {
 651                         screens[i].c[c].color = name_to_color(val);
 652                         free(screens[i].c[c].name);
 653                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 654                                 errx(1, "strdup");
 655                 }
 656         } else
 657                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 658                     i, ScreenCount(display));
 659 }
 660
 661 void
 662 custom_region(char *val)
 663 {
 664         unsigned int                    sidx, x, y, w, h;
 665
 666         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 667                 errx(1, "invalid custom region, "
 668                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 669         if (sidx < 1 || sidx > ScreenCount(display))
 670                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 671                     sidx, ScreenCount(display));
 672         sidx--;
 673
 674         if (w < 1 || h < 1)
 675                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 676
 677         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 678             y < 0 || y > DisplayHeight(display, sidx) ||
 679             w + x > DisplayWidth(display, sidx) ||
 680             h + y > DisplayHeight(display, sidx))
 681                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 682                     "(%ux%u)\n", w, h, x, y,
 683                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 684
 685         new_region(&screens[sidx], x, y, w, h);
 686 }
 687
 688 void
 689 socket_setnonblock(int fd)
 690 {
 691         int                     flags;
 692
 693         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 694                 err(1, "fcntl F_GETFL");
 695         flags |= O_NONBLOCK;
 696         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 697                 err(1, "fcntl F_SETFL");
 698 }
 699
 700 void
 701 bar_print(struct swm_region *r, char *s)
 702 {
 703         XClearWindow(display, r->bar_window);
 704         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 705         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 706             strlen(s));
 707 }
 708
 709 void
 710 bar_extra_stop(void)
 711 {
 712         if (bar_pipe[0]) {
 713                 close(bar_pipe[0]);
 714                 bzero(bar_pipe, sizeof bar_pipe);
 715         }
 716         if (bar_pid) {
 717                 kill(bar_pid, SIGTERM);
 718                 bar_pid = 0;
 719         }
 720         strlcpy(bar_ext, "", sizeof bar_ext);
 721         bar_extra = 0;
 722 }
 723
 724 void
 725 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 726 {
 727         int                     do_class, do_name;
 728         Status                  status;
 729         XClassHint              *xch = NULL;
 730
 731         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 732             cur_focus != NULL) {
 733                 if ((xch = XAllocClassHint()) == NULL)
 734                         goto out;
 735                 status = XGetClassHint(display, cur_focus->id, xch);
 736                 if (status == BadWindow || status == BadAlloc)
 737                         goto out;
 738                 do_class = (title_class_enabled && xch->res_class != NULL);
 739                 do_name = (title_name_enabled && xch->res_name != NULL);
 740                 if (do_class)
 741                         strlcat(s, xch->res_class, sz);
 742                 if (do_class && do_name)
 743                         strlcat(s, ":", sz);
 744                 if (do_name)
 745                         strlcat(s, xch->res_name, sz);
 746                 strlcat(s, "    ", sz);
 747         }
 748 out:
 749         if (xch)
 750                 XFree(xch);
 751 }
 752
 753 void
 754 bar_update(void)
 755 {
 756         time_t                  tmt;
 757         struct tm               tm;
 758         struct swm_region       *r;
 759         int                     i, x;
 760         size_t                  len;
 761         char                    s[SWM_BAR_MAX];
 762         char                    loc[SWM_BAR_MAX];
 763         char                    *b;
 764         char                    *stack = "";
 765
 766         if (bar_enabled == 0)
 767                 return;
 768         if (bar_extra && bar_extra_running) {
 769                 /* ignore short reads; it'll correct itself */
 770                 while ((b = fgetln(stdin, &len)) != NULL)
 771                         if (b && b[len - 1] == '\n') {
 772                                 b[len - 1] = '\0';
 773                                 strlcpy(bar_ext, b, sizeof bar_ext);
 774                         }
 775                 if (b == NULL && errno != EAGAIN) {
 776                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 777                             errno, strerror(errno));
 778                         bar_extra_stop();
 779                 }
 780         } else
 781                 strlcpy(bar_ext, "", sizeof bar_ext);
 782
 783         if (clock_enabled == 0)
 784                 strlcpy(s, "", sizeof s);
 785         else {
 786                 time(&tmt);
 787                 localtime_r(&tmt, &tm);
 788                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 789         }
 790
 791         for (i = 0; i < ScreenCount(display); i++) {
 792                 x = 1;
 793                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 794                         if (r && r->ws)
 795                                 bar_class_name(s, sizeof s, r->ws->focus);
 796
 797                         if (stack_enabled)
 798                                 stack = r->ws->cur_layout->name;
 799
 800                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 801                             x++, r->ws->idx + 1, stack, s, bar_ext,
 802                             bar_vertext);
 803                         bar_print(r, loc);
 804                 }
 805         }
 806         alarm(bar_delay);
 807 }
 808
 809 void
 810 bar_signal(int sig)
 811 {
 812         bar_alarm = 1;
 813 }
 814
 815 void
 816 bar_toggle(struct swm_region *r, union arg *args)
 817 {
 818         struct swm_region       *tmpr;
 819         int                     i, j, sc = ScreenCount(display);
 820
 821         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 822
 823         if (bar_enabled)
 824                 for (i = 0; i < sc; i++)
 825                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 826                                 XUnmapWindow(display, tmpr->bar_window);
 827         else
 828                 for (i = 0; i < sc; i++)
 829                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 830                                 XMapRaised(display, tmpr->bar_window);
 831
 832         bar_enabled = !bar_enabled;
 833         for (i = 0; i < sc; i++)
 834                 for (j = 0; j < SWM_WS_MAX; j++)
 835                         screens[i].ws[j].restack = 1;
 836
 837         stack();
 838         /* must be after stack */
 839         bar_update();
 840 }
 841
 842 void
 843 bar_refresh(void)
 844 {
 845         XSetWindowAttributes    wa;
 846         struct swm_region       *r;
 847         int                     i;
 848
 849         /* do this here because the conf file is in memory */
 850         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 851                 /* launch external status app */
 852                 bar_extra_running = 1;
 853                 if (pipe(bar_pipe) == -1)
 854                         err(1, "pipe error");
 855                 socket_setnonblock(bar_pipe[0]);
 856                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 857                 if (dup2(bar_pipe[0], 0) == -1)
 858                         errx(1, "dup2");
 859                 if (dup2(bar_pipe[1], 1) == -1)
 860                         errx(1, "dup2");
 861                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 862                         err(1, "could not disable SIGPIPE");
 863                 switch (bar_pid = fork()) {
 864                 case -1:
 865                         err(1, "cannot fork");
 866                         break;
 867                 case 0: /* child */
 868                         close(bar_pipe[0]);
 869                         execvp(bar_argv[0], bar_argv);
 870                         err(1, "%s external app failed", bar_argv[0]);
 871                         break;
 872                 default: /* parent */
 873                         close(bar_pipe[1]);
 874                         break;
 875                 }
 876         }
 877
 878         bzero(&wa, sizeof wa);
 879         for (i = 0; i < ScreenCount(display); i++)
 880                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 881                         wa.border_pixel =
 882                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 883                         wa.background_pixel =
 884                             screens[i].c[SWM_S_COLOR_BAR].color;
 885                         XChangeWindowAttributes(display, r->bar_window,
 886                             CWBackPixel | CWBorderPixel, &wa);
 887                 }
 888         bar_update();
 889 }
 890
 891 void
 892 bar_setup(struct swm_region *r)
 893 {
 894         int                     i;
 895
 896         for (i = 0; bar_fonts[i] != NULL; i++) {
 897                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 898                 if (bar_fs) {
 899                         bar_fidx = i;
 900                         break;
 901                 }
 902         }
 903         if (bar_fonts[i] == NULL)
 904                         errx(1, "couldn't load font");
 905         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 906
 907         r->bar_window = XCreateSimpleWindow(display,
 908             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 909             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 910             r->s->c[SWM_S_COLOR_BAR].color);
 911         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 912         XSetFont(display, bar_gc, bar_fs->fid);
 913         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 914         if (bar_enabled)
 915                 XMapRaised(display, r->bar_window);
 916         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 917
 918         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 919                 err(1, "could not install bar_signal");
 920         bar_refresh();
 921 }
 922
 923 void
 924 set_win_state(struct ws_win *win, long state)
 925 {
 926         long                    data[] = {state, None};
 927
 928         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 929
 930         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 931             (unsigned char *)data, 2);
 932 }
 933
 934 long
 935 getstate(Window w)
 936 {
 937         int                     format, status;
 938         long                    result = -1;
 939         unsigned char           *p = NULL;
 940         unsigned long           n, extra;
 941         Atom                    real;
 942
 943         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 944             &real, &format, &n, &extra, (unsigned char **)&p);
 945         if (status != Success)
 946                 return (-1);
 947         if (n != 0)
 948                 result = *((long *)p);
 949         XFree(p);
 950         return (result);
 951 }
 952
 953 void
 954 version(struct swm_region *r, union arg *args)
 955 {
 956         bar_version = !bar_version;
 957         if (bar_version)
 958                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 959                     SWM_VERSION, cvstag);
 960         else
 961                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 962         bar_update();
 963 }
 964
 965 void
 966 client_msg(struct ws_win *win, Atom a)
 967 {
 968         XClientMessageEvent     cm;
 969
 970         bzero(&cm, sizeof cm);
 971         cm.type = ClientMessage;
 972         cm.window = win->id;
 973         cm.message_type = aprot;
 974         cm.format = 32;
 975         cm.data.l[0] = a;
 976         cm.data.l[1] = CurrentTime;
 977         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 978 }
 979
 980 void
 981 config_win(struct ws_win *win)
 982 {
 983         XConfigureEvent         ce;
 984
 985         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 986             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 987         ce.type = ConfigureNotify;
 988         ce.display = display;
 989         ce.event = win->id;
 990         ce.window = win->id;
 991         ce.x = win->g.x;
 992         ce.y = win->g.y;
 993         ce.width = win->g.w;
 994         ce.height = win->g.h;
 995         ce.border_width = 1; /* XXX store this! */
 996         ce.above = None;
 997         ce.override_redirect = False;
 998         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 999 }
1000
1001 int
1002 count_win(struct workspace *ws, int count_transient)
1003 {
1004         struct ws_win           *win;
1005         int                     count = 0;
1006
1007         TAILQ_FOREACH(win, &ws->winlist, entry) {
1008                 if (count_transient == 0 && win->floating)
1009                         continue;
1010                 if (count_transient == 0 && win->transient)
1011                         continue;
1012                 count++;
1013         }
1014         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1015
1016         return (count);
1017 }
1018
1019 void
1020 quit(struct swm_region *r, union arg *args)
1021 {
1022         DNPRINTF(SWM_D_MISC, "quit\n");
1023         running = 0;
1024 }
1025
1026 void
1027 unmap_window(struct ws_win *win)
1028 {
1029         if (win == NULL)
1030                 return;
1031
1032         set_win_state(win, IconicState);
1033         XUnmapWindow(display, win->id);
1034 }
1035
1036 void
1037 unmap_all(void)
1038 {
1039         struct ws_win           *win;
1040         int                     i, j;
1041
1042         for (i = 0; i < ScreenCount(display); i++)
1043                 for (j = 0; j < SWM_WS_MAX; j++)
1044                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1045                                 unmap_window(win);
1046 }
1047
1048 void
1049 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1050 {
1051         XKeyEvent event;
1052
1053         event.display = display;        /* Ignored, but what the hell */
1054         event.window = win->id;
1055         event.root = win->s->root;
1056         event.subwindow = None;
1057         event.time = CurrentTime;
1058         event.x = win->g.x;
1059         event.y = win->g.y;
1060         event.x_root = 1;
1061         event.y_root = 1;
1062         event.same_screen = True;
1063         event.keycode = XKeysymToKeycode(display, keysym);
1064         event.state = modifiers;
1065
1066         event.type = KeyPress;
1067         XSendEvent(event.display, event.window, True,
1068             KeyPressMask, (XEvent *)&event);
1069
1070         event.type = KeyRelease;
1071         XSendEvent(event.display, event.window, True,
1072             KeyPressMask, (XEvent *)&event);
1073
1074 }
1075
1076 void
1077 restart(struct swm_region *r, union arg *args)
1078 {
1079         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1080
1081         /* disable alarm because the following code may not be interrupted */
1082         alarm(0);
1083         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1084                 errx(1, "can't disable alarm");
1085
1086         bar_extra_stop();
1087         bar_extra = 1;
1088         unmap_all();
1089         XCloseDisplay(display);
1090         execvp(start_argv[0], start_argv);
1091         fprintf(stderr, "execvp failed\n");
1092         perror(" failed");
1093         quit(NULL, NULL);
1094 }
1095
1096 struct swm_region *
1097 root_to_region(Window root)
1098 {
1099         struct swm_region       *r = NULL;
1100         Window                  rr, cr;
1101         int                     i, x, y, wx, wy;
1102         unsigned int            mask;
1103
1104         for (i = 0; i < ScreenCount(display); i++)
1105                 if (screens[i].root == root)
1106                         break;
1107
1108         if (XQueryPointer(display, screens[i].root,
1109             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1110                 /* choose a region based on pointer location */
1111                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1112                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1113                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1114                                 break;
1115         }
1116
1117         if (r == NULL)
1118                 r = TAILQ_FIRST(&screens[i].rl);
1119
1120         return (r);
1121 }
1122
1123 struct ws_win *
1124 find_window(Window id)
1125 {
1126         struct ws_win           *win;
1127         int                     i, j;
1128
1129         for (i = 0; i < ScreenCount(display); i++)
1130                 for (j = 0; j < SWM_WS_MAX; j++)
1131                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1132                                 if (id == win->id)
1133                                         return (win);
1134         return (NULL);
1135 }
1136
1137 void
1138 spawn(struct swm_region *r, union arg *args)
1139 {
1140         char                    *ret;
1141         int                     si;
1142
1143         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1144         /*
1145          * The double-fork construct avoids zombie processes and keeps the code
1146          * clean from stupid signal handlers.
1147          */
1148         if (fork() == 0) {
1149                 if (fork() == 0) {
1150                         if (display)
1151                                 close(ConnectionNumber(display));
1152                         setenv("LD_PRELOAD", SWM_LIB, 1);
1153                         if (asprintf(&ret, "%d", r->ws->idx)) {
1154                                 setenv("_SWM_WS", ret, 1);
1155                                 free(ret);
1156                         }
1157                         if (asprintf(&ret, "%d", getpid())) {
1158                                 setenv("_SWM_PID", ret, 1);
1159                                 free(ret);
1160                         }
1161                         setsid();
1162                         /* kill stdin, mplayer, ssh-add etc. need that */
1163                         si = open("/dev/null", O_RDONLY, 0);
1164                         if (si == -1)
1165                                 err(1, "open /dev/null");
1166                         if (dup2(si, 0) == -1)
1167                                 err(1, "dup2 /dev/null");
1168                         execvp(args->argv[0], args->argv);
1169                         fprintf(stderr, "execvp failed\n");
1170                         perror(" failed");
1171                 }
1172                 exit(0);
1173         }
1174         wait(0);
1175 }
1176
1177 void
1178 spawnterm(struct swm_region *r, union arg *args)
1179 {
1180         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1181
1182         if (term_width)
1183                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1184         spawn(r, args);
1185 }
1186
1187 void
1188 unfocus_win(struct ws_win *win)
1189 {
1190         if (win == NULL)
1191                 return;
1192
1193         if (win->ws->r == NULL)
1194                 return;
1195
1196         grabbuttons(win, 0);
1197         XSetWindowBorder(display, win->id,
1198             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1199
1200         if (win->ws->focus == win) {
1201                 win->ws->focus = NULL;
1202                 win->ws->focus_prev = win;
1203         }
1204 }
1205
1206 void
1207 unfocus_all(void)
1208 {
1209         struct ws_win           *win;
1210         int                     i, j;
1211
1212         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1213
1214         for (i = 0; i < ScreenCount(display); i++)
1215                 for (j = 0; j < SWM_WS_MAX; j++)
1216                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1217                                 unfocus_win(win);
1218         XSync(display, False);
1219 }
1220
1221 void
1222 focus_win(struct ws_win *win)
1223 {
1224         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1225
1226         if (win == NULL)
1227                 return;
1228
1229         /* use big hammer to make sure it works under all use cases */
1230         unfocus_all();
1231         win->ws->focus = win;
1232
1233         if (win->ws->r != NULL) {
1234                 XSetWindowBorder(display, win->id,
1235                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1236                 grabbuttons(win, 1);
1237                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1238                         XMapRaised(display, win->id);
1239                 XSetInputFocus(display, win->id,
1240                     RevertToPointerRoot, CurrentTime);
1241                 XSync(display, False);
1242         }
1243 }
1244
1245 void
1246 switchws(struct swm_region *r, union arg *args)
1247 {
1248         int                     wsid = args->id;
1249         struct swm_region       *this_r, *other_r;
1250         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1251         struct workspace        *new_ws, *old_ws;
1252
1253         this_r = r;
1254         old_ws = this_r->ws;
1255         new_ws = &this_r->s->ws[wsid];
1256
1257         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1258             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1259             old_ws->idx, wsid);
1260
1261         if (new_ws == old_ws)
1262                 return;
1263
1264         /* get focus window */
1265         if (new_ws->focus)
1266                 winfocus = new_ws->focus;
1267         else if (new_ws->focus_prev)
1268                 winfocus = new_ws->focus_prev;
1269         else
1270                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1271
1272         other_r = new_ws->r;
1273         if (other_r == NULL) {
1274                 /* if the other workspace is hidden, switch windows */
1275                 if (old_ws->r != NULL)
1276                         old_ws->old_r = old_ws->r;
1277                 old_ws->r = NULL;
1278                 old_ws->restack = 1;
1279
1280                 /*
1281                  * Map new windows first if they were here before
1282                  * to minimize ugly blinking.
1283                  */
1284                 if (new_ws->old_r == this_r)
1285                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1286                                 if (!(win->ws->cur_layout->flags &
1287                                     SWM_L_MAPONFOCUS))
1288                                         XMapRaised(display, win->id);
1289
1290                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1291                         unmap_window(win);
1292         } else {
1293                 other_r->ws = old_ws;
1294                 old_ws->r = other_r;
1295         }
1296         this_r->ws = new_ws;
1297         new_ws->r = this_r;
1298
1299         ignore_enter = 1;
1300         stack();
1301         if (winfocus) {
1302                 /* make sure we see the parent window */
1303                 if (winfocus->transient) {
1304                         parent = find_window(winfocus->transient);
1305                         if (parent)
1306                                 focus_win(parent);
1307                 }
1308
1309                 focus_win(winfocus);
1310         }
1311         bar_update();
1312 }
1313
1314 void
1315 cyclews(struct swm_region *r, union arg *args)
1316 {
1317         union                   arg a;
1318         struct swm_screen       *s = r->s;
1319
1320         DNPRINTF(SWM_D_WS, "cyclews id %d "
1321             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1322             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1323
1324         a.id = r->ws->idx;
1325         do {
1326                 switch (args->id) {
1327                 case SWM_ARG_ID_CYCLEWS_UP:
1328                         if (a.id < SWM_WS_MAX - 1)
1329                                 a.id++;
1330                         else
1331                                 a.id = 0;
1332                         break;
1333                 case SWM_ARG_ID_CYCLEWS_DOWN:
1334                         if (a.id > 0)
1335                                 a.id--;
1336                         else
1337                                 a.id = SWM_WS_MAX - 1;
1338                         break;
1339                 default:
1340                         return;
1341                 };
1342
1343                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1344                         continue;
1345                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1346                         continue;
1347
1348                 switchws(r, &a);
1349         } while (a.id != r->ws->idx);
1350 }
1351
1352 void
1353 cyclescr(struct swm_region *r, union arg *args)
1354 {
1355         struct swm_region       *rr;
1356         int                     i;
1357
1358         /* do nothing if we don't have more than one screen */
1359         if (!(ScreenCount(display) > 1 || outputs > 1))
1360                 return;
1361
1362         i = r->s->idx;
1363         switch (args->id) {
1364         case SWM_ARG_ID_CYCLESC_UP:
1365                 rr = TAILQ_NEXT(r, entry);
1366                 if (rr == NULL)
1367                         rr = TAILQ_FIRST(&screens[i].rl);
1368                 break;
1369         case SWM_ARG_ID_CYCLESC_DOWN:
1370                 rr = TAILQ_PREV(r, swm_region_list, entry);
1371                 if (rr == NULL)
1372                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1373                 break;
1374         default:
1375                 return;
1376         };
1377         unfocus_all();
1378         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1379         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, rr->g.x + 1,
1380             rr->g.y + bar_enabled + 1 ? bar_height : 0);
1381 }
1382
1383 void
1384 swapwin(struct swm_region *r, union arg *args)
1385 {
1386         struct ws_win           *target, *source;
1387         struct ws_win           *cur_focus;
1388         struct ws_win_list      *wl;
1389
1390
1391         DNPRINTF(SWM_D_WS, "swapwin id %d "
1392             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1393             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1394
1395         cur_focus = r->ws->focus;
1396         if (cur_focus == NULL)
1397                 return;
1398
1399         source = cur_focus;
1400         wl = &source->ws->winlist;
1401
1402         switch (args->id) {
1403         case SWM_ARG_ID_SWAPPREV:
1404                 target = TAILQ_PREV(source, ws_win_list, entry);
1405                 TAILQ_REMOVE(wl, cur_focus, entry);
1406                 if (target == NULL)
1407                         TAILQ_INSERT_TAIL(wl, source, entry);
1408                 else
1409                         TAILQ_INSERT_BEFORE(target, source, entry);
1410                 break;
1411         case SWM_ARG_ID_SWAPNEXT:
1412                 target = TAILQ_NEXT(source, entry);
1413                 TAILQ_REMOVE(wl, source, entry);
1414                 if (target == NULL)
1415                         TAILQ_INSERT_HEAD(wl, source, entry);
1416                 else
1417                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1418                 break;
1419         case SWM_ARG_ID_SWAPMAIN:
1420                 target = TAILQ_FIRST(wl);
1421                 if (target == source) {
1422                         if (source->ws->focus_prev != NULL &&
1423                             source->ws->focus_prev != target)
1424
1425                                 source = source->ws->focus_prev;
1426                         else
1427                                 return;
1428                 }
1429                 source->ws->focus_prev = target;
1430                 TAILQ_REMOVE(wl, target, entry);
1431                 TAILQ_INSERT_BEFORE(source, target, entry);
1432                 TAILQ_REMOVE(wl, source, entry);
1433                 TAILQ_INSERT_HEAD(wl, source, entry);
1434                 break;
1435         default:
1436                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1437                 return;
1438         }
1439
1440         ignore_enter = 1;
1441         stack();
1442 }
1443
1444 void
1445 focus(struct swm_region *r, union arg *args)
1446 {
1447         struct ws_win           *winfocus, *winlostfocus;
1448         struct ws_win_list      *wl;
1449         struct ws_win           *cur_focus;
1450
1451         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1452
1453         cur_focus = r->ws->focus;
1454         if (cur_focus == NULL)
1455                 return;
1456
1457         wl = &cur_focus->ws->winlist;
1458
1459         winlostfocus = cur_focus;
1460
1461         switch (args->id) {
1462         case SWM_ARG_ID_FOCUSPREV:
1463                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1464                 if (winfocus == NULL)
1465                         winfocus = TAILQ_LAST(wl, ws_win_list);
1466                 break;
1467
1468         case SWM_ARG_ID_FOCUSNEXT:
1469                 winfocus = TAILQ_NEXT(cur_focus, entry);
1470                 if (winfocus == NULL)
1471                         winfocus = TAILQ_FIRST(wl);
1472                 break;
1473
1474         case SWM_ARG_ID_FOCUSMAIN:
1475                 winfocus = TAILQ_FIRST(wl);
1476                 if (winfocus == cur_focus)
1477                         winfocus = cur_focus->ws->focus_prev;
1478                 if (winfocus == NULL)
1479                         return;
1480                 break;
1481
1482         default:
1483                 return;
1484         }
1485
1486         if (winfocus == winlostfocus || winfocus == NULL)
1487                 return;
1488
1489         focus_win(winfocus);
1490 }
1491
1492 void
1493 cycle_layout(struct swm_region *r, union arg *args)
1494 {
1495         struct workspace        *ws = r->ws;
1496         struct ws_win           *winfocus, *parent = NULL;
1497
1498         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1499
1500         winfocus = ws->focus;
1501
1502         ws->cur_layout++;
1503         if (ws->cur_layout->l_stack == NULL)
1504                 ws->cur_layout = &layouts[0];
1505
1506         ignore_enter = 1;
1507         stack();
1508         /* make sure we see the parent window */
1509         if (winfocus->transient) {
1510                 parent = find_window(winfocus->transient);
1511                 if (parent)
1512                         focus_win(parent);
1513         }
1514         focus_win(winfocus);
1515         ignore_enter = 0;
1516 }
1517
1518 void
1519 stack_config(struct swm_region *r, union arg *args)
1520 {
1521         struct workspace        *ws = r->ws;
1522
1523         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1524             args->id, ws->idx);
1525
1526         if (ws->cur_layout->l_config != NULL)
1527                 ws->cur_layout->l_config(ws, args->id);
1528
1529         if (args->id != SWM_ARG_ID_STACKINIT);
1530                 stack();
1531 }
1532
1533 void
1534 stack(void) {
1535         struct swm_geometry     g;
1536         struct swm_region       *r;
1537         int                     i, j;
1538
1539         DNPRINTF(SWM_D_STACK, "stack\n");
1540
1541         for (i = 0; i < ScreenCount(display); i++) {
1542                 j = 0;
1543                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1544                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1545                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1546
1547                         /* start with screen geometry, adjust for bar */
1548                         g = r->g;
1549                         g.w -= 2;
1550                         g.h -= 2;
1551                         if (bar_enabled) {
1552                                 g.y += bar_height;
1553                                 g.h -= bar_height;
1554                         }
1555
1556                         r->ws->restack = 0;
1557                         r->ws->cur_layout->l_stack(r->ws, &g);
1558                 }
1559         }
1560         if (font_adjusted)
1561                 font_adjusted--;
1562         XSync(display, False);
1563 }
1564
1565 void
1566 stack_floater(struct ws_win *win, struct swm_region *r)
1567 {
1568         unsigned int            mask;
1569         XWindowChanges          wc;
1570
1571         if (win == NULL)
1572                 return;
1573
1574         bzero(&wc, sizeof wc);
1575         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1576         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1577             (win->g.h == HEIGHT(r)))
1578                 wc.border_width = 0;
1579         else
1580                 wc.border_width = 1;
1581         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1582                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1583                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1584         }
1585         wc.width = win->g.w;
1586         wc.height = win->g.h;
1587         if (win->manual) {
1588                 wc.x = win->g.x;
1589                 wc.y = win->g.y;
1590         } else {
1591                 wc.x = (WIDTH(r) - win->g.w) / 2;
1592                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1593         }
1594
1595         /* adjust for region */
1596         wc.x += r->g.x;
1597         wc.y += r->g.y;
1598
1599         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1600             win->id, wc.x, wc.y, wc.width, wc.height);
1601
1602         XConfigureWindow(display, win->id, mask, &wc);
1603 }
1604
1605 /*
1606  * Send keystrokes to terminal to decrease/increase the font size as the
1607  * window size changes.
1608  */
1609 void
1610 adjust_font(struct ws_win *win)
1611 {
1612         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1613             win->floating || win->transient)
1614                 return;
1615
1616         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1617             win->g.w / win->sh.width_inc < term_width &&
1618             win->font_steps < SWM_MAX_FONT_STEPS) {
1619                 win->font_size_boundary[win->font_steps] =
1620                     (win->sh.width_inc * term_width) + win->sh.base_width;
1621                 win->font_steps++;
1622                 font_adjusted++;
1623                 win->last_inc = win->sh.width_inc;
1624                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1625         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1626             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1627                 win->font_steps--;
1628                 font_adjusted++;
1629                 win->last_inc = win->sh.width_inc;
1630                 fake_keypress(win, XK_KP_Add, ShiftMask);
1631         }
1632 }
1633
1634 #define SWAPXY(g)       do {                            \
1635         int tmp;                                        \
1636         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1637         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1638 } while (0)
1639 void
1640 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1641 {
1642         XWindowChanges          wc;
1643         struct swm_geometry     win_g, r_g = *g;
1644         struct ws_win           *win;
1645         int                     i, j, s, stacks;
1646         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1647         int                     hrh, extra = 0, h_slice, last_h = 0;
1648         int                     split, colno, winno, mwin, msize, mscale;
1649         int                     remain, missing, v_slice;
1650         unsigned int            mask;
1651
1652         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1653             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1654
1655         winno = count_win(ws, 0);
1656         if (winno == 0 && count_win(ws, 1) == 0)
1657                 return;
1658
1659         TAILQ_FOREACH(win, &ws->winlist, entry)
1660                 if (win->transient == 0 && win->floating == 0)
1661                         break;
1662
1663         if (win == NULL)
1664                 goto notiles;
1665
1666         if (rot) {
1667                 w_inc = win->sh.width_inc;
1668                 w_base = win->sh.base_width;
1669                 mwin = ws->l_state.horizontal_mwin;
1670                 mscale = ws->l_state.horizontal_msize;
1671                 stacks = ws->l_state.horizontal_stacks;
1672                 SWAPXY(&r_g);
1673         } else {
1674                 w_inc = win->sh.height_inc;
1675                 w_base = win->sh.base_height;
1676                 mwin = ws->l_state.vertical_mwin;
1677                 mscale = ws->l_state.vertical_msize;
1678                 stacks = ws->l_state.vertical_stacks;
1679         }
1680         win_g = r_g;
1681
1682         if (stacks > winno - mwin)
1683                 stacks = winno - mwin;
1684         if (stacks < 1)
1685                 stacks = 1;
1686
1687         h_slice = r_g.h / SWM_H_SLICE;
1688         if (mwin && winno > mwin) {
1689                 v_slice = r_g.w / SWM_V_SLICE;
1690
1691                 split = mwin;
1692                 colno = split;
1693                 win_g.w = v_slice * mscale;
1694
1695                 if (w_inc > 1 && w_inc < v_slice) {
1696                         /* adjust for window's requested size increment */
1697                         remain = (win_g.w - w_base) % w_inc;
1698                         missing = w_inc - remain;
1699                         win_g.w -= remain;
1700                         extra += remain;
1701                 }
1702
1703                 msize = win_g.w;
1704                 if (flip)
1705                         win_g.x += r_g.w - msize;
1706         } else {
1707                 msize = -2;
1708                 colno = split = winno / stacks;
1709                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1710         }
1711         hrh = r_g.h / colno;
1712         extra = r_g.h - (colno * hrh);
1713         win_g.h = hrh - 2;
1714
1715         /*  stack all the tiled windows */
1716         i = j = 0, s = stacks;
1717         TAILQ_FOREACH(win, &ws->winlist, entry) {
1718                 if (win->transient != 0 || win->floating != 0)
1719                         continue;
1720
1721                 if (split && i == split) {
1722                         colno = (winno - mwin) / stacks;
1723                         if (s <= (winno - mwin) % stacks)
1724                                 colno++;
1725                         split = split + colno;
1726                         hrh = (r_g.h / colno);
1727                         extra = r_g.h - (colno * hrh);
1728                         if (flip)
1729                                 win_g.x = r_g.x;
1730                         else
1731                                 win_g.x += win_g.w + 2;
1732                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1733                         if (s == 1)
1734                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1735                                     stacks;
1736                         s--;
1737                         j = 0;
1738                 }
1739                 win_g.h = hrh - 2;
1740                 if (rot) {
1741                         h_inc = win->sh.width_inc;
1742                         h_base = win->sh.base_width;
1743                 } else {
1744                         h_inc = win->sh.height_inc;
1745                         h_base = win->sh.base_height;
1746                 }
1747                 if (j == colno - 1) {
1748                         win_g.h = hrh + extra;
1749                 } else if (h_inc > 1 && h_inc < h_slice) {
1750                         /* adjust for window's requested size increment */
1751                         remain = (win_g.h - h_base) % h_inc;
1752                         missing = h_inc - remain;
1753
1754                         if (missing <= extra || j == 0) {
1755                                 extra -= missing;
1756                                 win_g.h += missing;
1757                         } else {
1758                                 win_g.h -= remain;
1759                                 extra += remain;
1760                         }
1761                 }
1762
1763                 if (j == 0)
1764                         win_g.y = r_g.y;
1765                 else
1766                         win_g.y += last_h + 2;
1767
1768                 bzero(&wc, sizeof wc);
1769                 wc.border_width = 1;
1770                 if (rot) {
1771                         win->g.x = wc.x = win_g.y;
1772                         win->g.y = wc.y = win_g.x;
1773                         win->g.w = wc.width = win_g.h;
1774                         win->g.h = wc.height = win_g.w;
1775                 } else {
1776                         win->g.x = wc.x = win_g.x;
1777                         win->g.y = wc.y = win_g.y;
1778                         win->g.w = wc.width = win_g.w;
1779                         win->g.h = wc.height = win_g.h;
1780                 }
1781                 adjust_font(win);
1782                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1783                 XConfigureWindow(display, win->id, mask, &wc);
1784                 XMapRaised(display, win->id);
1785
1786                 last_h = win_g.h;
1787                 i++;
1788                 j++;
1789         }
1790
1791  notiles:
1792         /* now, stack all the floaters and transients */
1793         TAILQ_FOREACH(win, &ws->winlist, entry) {
1794                 if (win->transient == 0 && win->floating == 0)
1795                         continue;
1796
1797                 stack_floater(win, ws->r);
1798                 XMapRaised(display, win->id);
1799         }
1800 }
1801
1802 void
1803 vertical_config(struct workspace *ws, int id)
1804 {
1805         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1806
1807         switch (id) {
1808         case SWM_ARG_ID_STACKRESET:
1809         case SWM_ARG_ID_STACKINIT:
1810                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1811                 ws->l_state.vertical_mwin = 1;
1812                 ws->l_state.vertical_stacks = 1;
1813                 break;
1814         case SWM_ARG_ID_MASTERSHRINK:
1815                 if (ws->l_state.vertical_msize > 1)
1816                         ws->l_state.vertical_msize--;
1817                 break;
1818         case SWM_ARG_ID_MASTERGROW:
1819                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1820                         ws->l_state.vertical_msize++;
1821                 break;
1822         case SWM_ARG_ID_MASTERADD:
1823                 ws->l_state.vertical_mwin++;
1824                 break;
1825         case SWM_ARG_ID_MASTERDEL:
1826                 if (ws->l_state.vertical_mwin > 0)
1827                         ws->l_state.vertical_mwin--;
1828                 break;
1829         case SWM_ARG_ID_STACKINC:
1830                 ws->l_state.vertical_stacks++;
1831                 break;
1832         case SWM_ARG_ID_STACKDEC:
1833                 if (ws->l_state.vertical_stacks > 1)
1834                         ws->l_state.vertical_stacks--;
1835                 break;
1836         default:
1837                 return;
1838         }
1839 }
1840
1841 void
1842 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1843 {
1844         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1845
1846         stack_master(ws, g, 0, 0);
1847 }
1848
1849 void
1850 horizontal_config(struct workspace *ws, int id)
1851 {
1852         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1853
1854         switch (id) {
1855         case SWM_ARG_ID_STACKRESET:
1856         case SWM_ARG_ID_STACKINIT:
1857                 ws->l_state.horizontal_mwin = 1;
1858                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1859                 ws->l_state.horizontal_stacks = 1;
1860                 break;
1861         case SWM_ARG_ID_MASTERSHRINK:
1862                 if (ws->l_state.horizontal_msize > 1)
1863                         ws->l_state.horizontal_msize--;
1864                 break;
1865         case SWM_ARG_ID_MASTERGROW:
1866                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1867                         ws->l_state.horizontal_msize++;
1868                 break;
1869         case SWM_ARG_ID_MASTERADD:
1870                 ws->l_state.horizontal_mwin++;
1871                 break;
1872         case SWM_ARG_ID_MASTERDEL:
1873                 if (ws->l_state.horizontal_mwin > 0)
1874                         ws->l_state.horizontal_mwin--;
1875                 break;
1876         case SWM_ARG_ID_STACKINC:
1877                 ws->l_state.horizontal_stacks++;
1878                 break;
1879         case SWM_ARG_ID_STACKDEC:
1880                 if (ws->l_state.horizontal_stacks > 1)
1881                         ws->l_state.horizontal_stacks--;
1882                 break;
1883         default:
1884                 return;
1885         }
1886 }
1887
1888 void
1889 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1890 {
1891         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1892
1893         stack_master(ws, g, 1, 0);
1894 }
1895
1896 /* fullscreen view */
1897 void
1898 max_stack(struct workspace *ws, struct swm_geometry *g)
1899 {
1900         XWindowChanges          wc;
1901         struct swm_geometry     gg = *g;
1902         struct ws_win           *win, *wintrans = NULL;
1903         unsigned int            mask;
1904         int                     winno;
1905
1906         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1907
1908         if (ws == NULL)
1909                 return;
1910
1911         winno = count_win(ws, 0);
1912         if (winno == 0 && count_win(ws, 1) == 0)
1913                 return;
1914
1915         TAILQ_FOREACH(win, &ws->winlist, entry) {
1916                 if (win->transient != 0) {
1917                         wintrans = win;
1918                 } else {
1919                         bzero(&wc, sizeof wc);
1920                         wc.border_width = 1;
1921                         win->g.x = wc.x = gg.x;
1922                         win->g.y = wc.y = gg.y;
1923                         win->g.w = wc.width = gg.w;
1924                         win->g.h = wc.height = gg.h;
1925                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1926                         XConfigureWindow(display, win->id, mask, &wc);
1927
1928                         /* unmap only if we don't have multi screen */
1929                         if (win != ws->focus)
1930                                 if (!(ScreenCount(display) > 1 || outputs > 1))
1931                                         unmap_window(win);
1932                 }
1933         }
1934
1935         /* put the last transient on top */
1936         if (wintrans) {
1937                 stack_floater(wintrans, ws->r);
1938                 focus_win(wintrans); /* override */
1939         }
1940 }
1941
1942 void
1943 send_to_ws(struct swm_region *r, union arg *args)
1944 {
1945         int                     wsid = args->id;
1946         struct ws_win           *win = win, *winfocus = NULL;
1947         struct workspace        *ws, *nws;
1948         Atom                    ws_idx_atom = 0;
1949         unsigned char           ws_idx_str[SWM_PROPLEN];
1950
1951         if (r && r->ws)
1952                 win = r->ws->focus;
1953         else
1954                 return;
1955         if (win == NULL)
1956                 return;
1957
1958         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1959
1960         ws = win->ws;
1961         nws = &win->s->ws[wsid];
1962
1963         /* find a window to focus */
1964         winfocus = TAILQ_PREV(win, ws_win_list, entry);
1965         if (TAILQ_FIRST(&ws->winlist) == win)
1966                 winfocus = TAILQ_NEXT(win, entry);
1967         else {
1968                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
1969                 if (winfocus == NULL)
1970                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
1971         }
1972         /* out of windows in ws so focus on nws instead if we multi screen */
1973         if (winfocus == NULL)
1974                 if (ScreenCount(display) > 1 || outputs > 1)
1975                         winfocus = win;
1976
1977
1978         unmap_window(win);
1979         TAILQ_REMOVE(&ws->winlist, win, entry);
1980         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1981         win->ws = nws;
1982
1983         /* Try to update the window's workspace property */
1984         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
1985         if (ws_idx_atom &&
1986             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
1987                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
1988                     ws_idx_str);
1989                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
1990                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
1991         }
1992
1993         if (count_win(nws, 1) == 1)
1994                 nws->focus = win;
1995         ws->restack = 1;
1996         nws->restack = 1;
1997
1998         stack();
1999         if (winfocus)
2000                 focus_win(winfocus);
2001 }
2002
2003 void
2004 wkill(struct swm_region *r, union arg *args)
2005 {
2006         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2007
2008         if(r->ws->focus == NULL)
2009                 return;
2010
2011         if (args->id == SWM_ARG_ID_KILLWINDOW)
2012                 XKillClient(display, r->ws->focus->id);
2013         else
2014                 if (r->ws->focus->can_delete)
2015                         client_msg(r->ws->focus, adelete);
2016 }
2017
2018 void
2019 floating_toggle(struct swm_region *r, union arg *args)
2020 {
2021         struct ws_win   *win = r->ws->focus;
2022
2023         if (win == NULL)
2024                 return;
2025
2026         win->floating = !win->floating;
2027         win->manual = 0;
2028         stack();
2029         focus_win(win);
2030 }
2031
2032 void
2033 resize_window(struct ws_win *win, int center)
2034 {
2035         unsigned int            mask;
2036         XWindowChanges          wc;
2037         struct swm_region       *r;
2038
2039         r = root_to_region(win->wa.root);
2040         bzero(&wc, sizeof wc);
2041         mask = CWBorderWidth | CWWidth | CWHeight;
2042         wc.border_width = 1;
2043         wc.width = win->g.w;
2044         wc.height = win->g.h;
2045         if (center == SWM_ARG_ID_CENTER) {
2046                 wc.x = (WIDTH(r) - win->g.w) / 2;
2047                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2048                 mask |= CWX | CWY;
2049         }
2050
2051         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2052             win->id, wc.x, wc.y, wc.width, wc.height);
2053
2054         XConfigureWindow(display, win->id, mask, &wc);
2055         config_win(win);
2056 }
2057
2058 void
2059 resize(struct ws_win *win, union arg *args)
2060 {
2061         XEvent                  ev;
2062         Time                    time = 0;
2063
2064         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2065             win->id, win->floating, win->transient);
2066
2067         if (!(win->transient != 0 || win->floating != 0))
2068                 return;
2069
2070         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2071             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2072                 return;
2073         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2074         do {
2075                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2076                     SubstructureRedirectMask, &ev);
2077                 switch(ev.type) {
2078                 case ConfigureRequest:
2079                 case Expose:
2080                 case MapRequest:
2081                         handler[ev.type](&ev);
2082                         break;
2083                 case MotionNotify:
2084                         if (ev.xmotion.x <= 1)
2085                                 ev.xmotion.x = 1;
2086                         if (ev.xmotion.y <= 1)
2087                                 ev.xmotion.y = 1;
2088                         win->g.w = ev.xmotion.x;
2089                         win->g.h = ev.xmotion.y;
2090
2091                         /* not free, don't sync more than 60 times / second */
2092                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2093                                 time = ev.xmotion.time;
2094                                 XSync(display, False);
2095                                 resize_window(win, args->id);
2096                         }
2097                         break;
2098                 }
2099         } while (ev.type != ButtonRelease);
2100         if (time) {
2101                 XSync(display, False);
2102                 resize_window(win, args->id);
2103         }
2104         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2105             win->g.h - 1);
2106         XUngrabPointer(display, CurrentTime);
2107
2108         /* drain events */
2109         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2110 }
2111
2112 void
2113 move_window(struct ws_win *win)
2114 {
2115         unsigned int            mask;
2116         XWindowChanges          wc;
2117         struct swm_region       *r;
2118
2119         r = root_to_region(win->wa.root);
2120         bzero(&wc, sizeof wc);
2121         mask = CWX | CWY;
2122         wc.x = win->g.x;
2123         wc.y = win->g.y;
2124
2125         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2126             win->id, wc.x, wc.y, wc.width, wc.height);
2127
2128         XConfigureWindow(display, win->id, mask, &wc);
2129         config_win(win);
2130 }
2131
2132 void
2133 move(struct ws_win *win, union arg *args)
2134 {
2135         XEvent                  ev;
2136         Time                    time = 0;
2137         int                     restack = 0;
2138
2139         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2140             win->id, win->floating, win->transient);
2141
2142         if (win->floating == 0) {
2143                 win->floating = 1;
2144                 win->manual = 1;
2145                 restack = 1;
2146         }
2147
2148         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2149             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2150                 return;
2151         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2152         do {
2153                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2154                     SubstructureRedirectMask, &ev);
2155                 switch(ev.type) {
2156                 case ConfigureRequest:
2157                 case Expose:
2158                 case MapRequest:
2159                         handler[ev.type](&ev);
2160                         break;
2161                 case MotionNotify:
2162                         win->g.x = ev.xmotion.x_root;
2163                         win->g.y = ev.xmotion.y_root;
2164
2165                         /* not free, don't sync more than 60 times / second */
2166                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2167                                 time = ev.xmotion.time;
2168                                 XSync(display, False);
2169                                 move_window(win);
2170                         }
2171                         break;
2172                 }
2173         } while (ev.type != ButtonRelease);
2174         if (time) {
2175                 XSync(display, False);
2176                 move_window(win);
2177         }
2178         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2179         XUngrabPointer(display, CurrentTime);
2180         if (restack)
2181                 stack();
2182
2183         /* drain events */
2184         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2185 }
2186
2187 /* key definitions */
2188 void
2189 dummykeyfunc(struct swm_region *r, union arg *args)
2190 {
2191 };
2192
2193 void
2194 legacyfunc(struct swm_region *r, union arg *args)
2195 {
2196 };
2197
2198 struct keyfunc {
2199         char                    name[SWM_FUNCNAME_LEN];
2200         void                    (*func)(struct swm_region *r, union arg *);
2201         union arg               args;
2202 } keyfuncs[kf_invalid + 1] = {
2203         /* name                 function        argument */
2204         { "cycle_layout",       cycle_layout,   {0} },
2205         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2206         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2207         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2208         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2209         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2210         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2211         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2212         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2213         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2214         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2215         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2216         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2217         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2218         { "spawn_menu",         legacyfunc,     {0} },
2219         { "quit",               quit,           {0} },
2220         { "restart",            restart,        {0} },
2221         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2222         { "ws_1",               switchws,       {.id = 0} },
2223         { "ws_2",               switchws,       {.id = 1} },
2224         { "ws_3",               switchws,       {.id = 2} },
2225         { "ws_4",               switchws,       {.id = 3} },
2226         { "ws_5",               switchws,       {.id = 4} },
2227         { "ws_6",               switchws,       {.id = 5} },
2228         { "ws_7",               switchws,       {.id = 6} },
2229         { "ws_8",               switchws,       {.id = 7} },
2230         { "ws_9",               switchws,       {.id = 8} },
2231         { "ws_10",              switchws,       {.id = 9} },
2232         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2233         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2234         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2235         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2236         { "mvws_1",             send_to_ws,     {.id = 0} },
2237         { "mvws_2",             send_to_ws,     {.id = 1} },
2238         { "mvws_3",             send_to_ws,     {.id = 2} },
2239         { "mvws_4",             send_to_ws,     {.id = 3} },
2240         { "mvws_5",             send_to_ws,     {.id = 4} },
2241         { "mvws_6",             send_to_ws,     {.id = 5} },
2242         { "mvws_7",             send_to_ws,     {.id = 6} },
2243         { "mvws_8",             send_to_ws,     {.id = 7} },
2244         { "mvws_9",             send_to_ws,     {.id = 8} },
2245         { "mvws_10",            send_to_ws,     {.id = 9} },
2246         { "bar_toggle",         bar_toggle,     {0} },
2247         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2248         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2249         { "screenshot_all",     legacyfunc,     {0} },
2250         { "screenshot_wind",    legacyfunc,     {0} },
2251         { "float_toggle",       floating_toggle,{0} },
2252         { "version",            version,        {0} },
2253         { "spawn_lock",         legacyfunc,     {0} },
2254         { "spawn_initscr",      legacyfunc,     {0} },
2255         { "spawn_custom",       dummykeyfunc,   {0} },
2256         { "invalid key func",   NULL,           {0} },
2257 };
2258 struct key {
2259         unsigned int            mod;
2260         KeySym                  keysym;
2261         enum keyfuncid          funcid;
2262         char                    *spawn_name;
2263 };
2264 int                             keys_size = 0, keys_length = 0;
2265 struct key                      *keys = NULL;
2266
2267 /* mouse */
2268 enum { client_click, root_click };
2269 struct button {
2270         unsigned int            action;
2271         unsigned int            mask;
2272         unsigned int            button;
2273         void                    (*func)(struct ws_win *, union arg *);
2274         union arg               args;
2275 } buttons[] = {
2276           /* action     key             mouse button    func    args */
2277         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2278         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2279         { client_click, MODKEY,         Button1,        move,   {0} },
2280 };
2281
2282 void
2283 update_modkey(unsigned int mod)
2284 {
2285         int                     i;
2286
2287         mod_key = mod;
2288         for (i = 0; i < keys_length; i++)
2289                 if (keys[i].mod & ShiftMask)
2290                         keys[i].mod = mod | ShiftMask;
2291                 else
2292                         keys[i].mod = mod;
2293
2294         for (i = 0; i < LENGTH(buttons); i++)
2295                 if (buttons[i].mask & ShiftMask)
2296                         buttons[i].mask = mod | ShiftMask;
2297                 else
2298                         buttons[i].mask = mod;
2299 }
2300
2301 /* spawn */
2302 struct spawn_prog {
2303         char                    *name;
2304         int                     argc;
2305         char                    **argv;
2306 };
2307
2308 int                             spawns_size = 0, spawns_length = 0;
2309 struct spawn_prog               *spawns = NULL;
2310
2311 void
2312 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2313 {
2314         union arg               a;
2315         struct spawn_prog       *prog = NULL;
2316         int                     i;
2317         char                    *ap, **real_args;
2318
2319         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2320
2321         /* find program */
2322         for (i = 0; i < spawns_length; i++) {
2323                 if (!strcasecmp(spawn_name, spawns[i].name))
2324                         prog = &spawns[i];
2325         }
2326         if (prog == NULL) {
2327                 fprintf(stderr, "spawn_custom: program %s not found\n",
2328                     spawn_name);
2329                 return;
2330         }
2331
2332         /* make room for expanded args */
2333         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2334                 err(1, "spawn_custom: calloc real_args");
2335
2336         /* expand spawn_args into real_args */
2337         for (i = 0; i < prog->argc; i++) {
2338                 ap = prog->argv[i];
2339                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2340                 if (!strcasecmp(ap, "$bar_border")) {
2341                         if ((real_args[i] =
2342                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2343                             == NULL)
2344                                 err(1,  "spawn_custom border color");
2345                 } else if (!strcasecmp(ap, "$bar_color")) {
2346                         if ((real_args[i] =
2347                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2348                             == NULL)
2349                                 err(1, "spawn_custom bar color");
2350                 } else if (!strcasecmp(ap, "$bar_font")) {
2351                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2352                             == NULL)
2353                                 err(1, "spawn_custom bar fonts");
2354                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2355                         if ((real_args[i] =
2356                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2357                             == NULL)
2358                                 err(1, "spawn_custom color font");
2359                 } else if (!strcasecmp(ap, "$color_focus")) {
2360                         if ((real_args[i] =
2361                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2362                             == NULL)
2363                                 err(1, "spawn_custom color focus");
2364                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2365                         if ((real_args[i] =
2366                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2367                             == NULL)
2368                                 err(1, "spawn_custom color unfocus");
2369                 } else {
2370                         /* no match --> copy as is */
2371                         if ((real_args[i] = strdup(ap)) == NULL)
2372                                 err(1, "spawn_custom strdup(ap)");
2373                 }
2374                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2375                     real_args[i]);
2376         }
2377
2378 #ifdef SWM_DEBUG
2379         if ((swm_debug & SWM_D_SPAWN) != 0) {
2380                 fprintf(stderr, "spawn_custom: result = ");
2381                 for (i = 0; i < prog->argc; i++)
2382                         fprintf(stderr, "\"%s\" ", real_args[i]);
2383                 fprintf(stderr, "\n");
2384         }
2385 #endif
2386
2387         a.argv = real_args;
2388         spawn(r, &a);
2389         for (i = 0; i < prog->argc; i++)
2390                 free(real_args[i]);
2391         free(real_args);
2392 }
2393
2394 void
2395 setspawn(struct spawn_prog *prog)
2396 {
2397         int                     i, j;
2398
2399         if (prog == NULL || prog->name == NULL)
2400                 return;
2401
2402         /* find existing */
2403         for (i = 0; i < spawns_length; i++) {
2404                 if (!strcmp(spawns[i].name, prog->name)) {
2405                         /* found */
2406                         if (prog->argv == NULL) {
2407                                 /* delete */
2408                                 DNPRINTF(SWM_D_SPAWN,
2409                                     "setspawn: delete #%d %s\n",
2410                                     i, spawns[i].name);
2411                                 free(spawns[i].name);
2412                                 for (j = 0; j < spawns[i].argc; j++)
2413                                         free(spawns[i].argv[j]);
2414                                 free(spawns[i].argv);
2415                                 j = spawns_length - 1;
2416                                 if (i < j)
2417                                         spawns[i] = spawns[j];
2418                                 spawns_length--;
2419                                 free(prog->name);
2420                         } else {
2421                                 /* replace */
2422                                 DNPRINTF(SWM_D_SPAWN,
2423                                     "setspawn: replace #%d %s\n",
2424                                     i, spawns[i].name);
2425                                 free(spawns[i].name);
2426                                 for (j = 0; j < spawns[i].argc; j++)
2427                                         free(spawns[i].argv[j]);
2428                                 free(spawns[i].argv);
2429                                 spawns[i] = *prog;
2430                         }
2431                         /* found case handled */
2432                         free(prog);
2433                         return;
2434                 }
2435         }
2436
2437         if (prog->argv == NULL) {
2438                 fprintf(stderr,
2439                     "error: setspawn: cannot find program %s", prog->name);
2440                 free(prog);
2441                 return;
2442         }
2443
2444         /* not found: add */
2445         if (spawns_size == 0 || spawns == NULL) {
2446                 spawns_size = 4;
2447                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2448                 spawns = malloc((size_t)spawns_size *
2449                     sizeof(struct spawn_prog));
2450                 if (spawns == NULL) {
2451                         fprintf(stderr, "setspawn: malloc failed\n");
2452                         perror(" failed");
2453                         quit(NULL, NULL);
2454                 }
2455         } else if (spawns_length == spawns_size) {
2456                 spawns_size *= 2;
2457                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2458                 spawns = realloc(spawns, (size_t)spawns_size *
2459                     sizeof(struct spawn_prog));
2460                 if (spawns == NULL) {
2461                         fprintf(stderr, "setspawn: realloc failed\n");
2462                         perror(" failed");
2463                         quit(NULL, NULL);
2464                 }
2465         }
2466
2467         if (spawns_length < spawns_size) {
2468                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2469                     spawns_length, prog->name);
2470                 i = spawns_length++;
2471                 spawns[i] = *prog;
2472         } else {
2473                 fprintf(stderr, "spawns array problem?\n");
2474                 if (spawns == NULL) {
2475                         fprintf(stderr, "spawns array is NULL!\n");
2476                         quit(NULL, NULL);
2477                 }
2478         }
2479         free(prog);
2480 }
2481
2482 int
2483 setconfspawn(char *selector, char *value, int flags)
2484 {
2485         struct spawn_prog       *prog;
2486         char                    *vp, *cp, *word;
2487
2488         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2489         if ((prog = calloc(1, sizeof *prog)) == NULL)
2490                 err(1, "setconfspawn: calloc prog");
2491         prog->name = strdup(selector);
2492         if (prog->name == NULL)
2493                 err(1, "setconfspawn prog->name");
2494         if ((cp = vp = strdup(value)) == NULL)
2495                 err(1, "setconfspawn: strdup(value) ");
2496         while ((word = strsep(&cp, " \t")) != NULL) {
2497                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2498                 if (cp)
2499                         cp += (long)strspn(cp, " \t");
2500                 if (strlen(word) > 0) {
2501                         prog->argc++;
2502                         prog->argv = realloc(prog->argv,
2503                             prog->argc * sizeof(char *));
2504                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2505                                 err(1, "setconfspawn: strdup");
2506                 }
2507         }
2508         free(vp);
2509
2510         setspawn(prog);
2511
2512         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2513         return (0);
2514 }
2515
2516 void
2517 setup_spawn(void)
2518 {
2519         setconfspawn("term",            "xterm",                0);
2520         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2521         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2522         setconfspawn("lock",            "xlock",                0);
2523         setconfspawn("initscr",         "initscreen.sh",        0);
2524         setconfspawn("menu",            "dmenu_run"
2525                                         " -fn $bar_font"
2526                                         " -nb $bar_color"
2527                                         " -nf $bar_font_color"
2528                                         " -sb $bar_border"
2529                                         " -sf $bar_color",      0);
2530 }
2531
2532 /* key bindings */
2533 #define SWM_MODNAME_SIZE        32
2534 #define SWM_KEY_WS              "\n+ \t"
2535 int
2536 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2537 {
2538         char                    *cp, *name;
2539         KeySym                  uks;
2540         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2541         if (mod == NULL || ks == NULL) {
2542                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2543                 return (1);
2544         }
2545         if (keystr == NULL || strlen(keystr) == 0) {
2546                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2547                 return (1);
2548         }
2549         cp = keystr;
2550         *ks = NoSymbol;
2551         *mod = 0;
2552         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2553                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2554                 if (cp)
2555                         cp += (long)strspn(cp, SWM_KEY_WS);
2556                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2557                         *mod |= currmod;
2558                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2559                         *mod |= Mod1Mask;
2560                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2561                         *mod += Mod2Mask;
2562                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2563                         *mod |= Mod3Mask;
2564                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2565                         *mod |= Mod4Mask;
2566                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2567                         *mod |= ShiftMask;
2568                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2569                         *mod |= ControlMask;
2570                 else {
2571                         *ks = XStringToKeysym(name);
2572                         XConvertCase(*ks, ks, &uks);
2573                         if (ks == NoSymbol) {
2574                                 DNPRINTF(SWM_D_KEY,
2575                                     "parsekeys: invalid key %s\n",
2576                                     name);
2577                                 return (1);
2578                         }
2579                 }
2580         }
2581         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2582         return (0);
2583 }
2584 char *
2585 strdupsafe(char *str)
2586 {
2587         if (str == NULL)
2588                 return (NULL);
2589         else
2590                 return (strdup(str));
2591 }
2592 void
2593 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2594 {
2595         int                     i, j;
2596         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2597             keyfuncs[kfid].name, spawn_name);
2598         /* find existing */
2599         for (i = 0; i < keys_length; i++) {
2600                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2601                         if (kfid == kf_invalid) {
2602                                 /* found: delete */
2603                                 DNPRINTF(SWM_D_KEY,
2604                                     "setkeybinding: delete #%d %s\n",
2605                                     i, keyfuncs[keys[i].funcid].name);
2606                                 free(keys[i].spawn_name);
2607                                 j = keys_length - 1;
2608                                 if (i < j)
2609                                         keys[i] = keys[j];
2610                                 keys_length--;
2611                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2612                                 return;
2613                         } else {
2614                                 /* found: replace */
2615                                 DNPRINTF(SWM_D_KEY,
2616                                     "setkeybinding: replace #%d %s %s\n",
2617                                     i, keyfuncs[keys[i].funcid].name,
2618                                     spawn_name);
2619                                 free(keys[i].spawn_name);
2620                                 keys[i].mod = mod;
2621                                 keys[i].keysym = ks;
2622                                 keys[i].funcid = kfid;
2623                                 keys[i].spawn_name = strdupsafe(spawn_name);
2624                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2625                                 return;
2626                         }
2627                 }
2628         }
2629         if (kfid == kf_invalid) {
2630                 fprintf(stderr,
2631                     "error: setkeybinding: cannot find mod/key combination");
2632                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2633                 return;
2634         }
2635         /* not found: add */
2636         if (keys_size == 0 || keys == NULL) {
2637                 keys_size = 4;
2638                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2639                 keys = malloc((size_t)keys_size * sizeof(struct key));
2640                 if (!keys) {
2641                         fprintf(stderr, "malloc failed\n");
2642                         perror(" failed");
2643                         quit(NULL, NULL);
2644                 }
2645         } else if (keys_length == keys_size) {
2646                 keys_size *= 2;
2647                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2648                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2649                 if (!keys) {
2650                         fprintf(stderr, "realloc failed\n");
2651                         perror(" failed");
2652                         quit(NULL, NULL);
2653                 }
2654         }
2655         if (keys_length < keys_size) {
2656                 j = keys_length++;
2657                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2658                     j, keyfuncs[kfid].name, spawn_name);
2659                 keys[j].mod = mod;
2660                 keys[j].keysym = ks;
2661                 keys[j].funcid = kfid;
2662                 keys[j].spawn_name = strdupsafe(spawn_name);
2663         } else {
2664                 fprintf(stderr, "keys array problem?\n");
2665                 if (!keys) {
2666                         fprintf(stderr, "keys array problem\n");
2667                         quit(NULL, NULL);
2668                 }
2669         }
2670         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2671 }
2672 int
2673 setconfbinding(char *selector, char *value, int flags)
2674 {
2675         enum keyfuncid          kfid;
2676         unsigned int            mod;
2677         KeySym                  ks;
2678         int                     i;
2679         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2680         if (selector == NULL) {
2681                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2682                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2683                         kfid = kf_invalid;
2684                         setkeybinding(mod, ks, kfid, NULL);
2685                         return (0);
2686                 } else
2687                         return (1);
2688         }
2689         /* search by key function name */
2690         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2691                 if (strncasecmp(selector, keyfuncs[kfid].name,
2692                     SWM_FUNCNAME_LEN) == 0) {
2693                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2694                             selector);
2695                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2696                                 setkeybinding(mod, ks, kfid, NULL);
2697                                 return (0);
2698                         } else
2699                                 return (1);
2700                 }
2701         }
2702         /* search by custom spawn name */
2703         for (i = 0; i < spawns_length; i++) {
2704                 if (strcasecmp(selector, spawns[i].name) == 0) {
2705                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2706                             selector);
2707                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2708                                 setkeybinding(mod, ks, kf_spawn_custom,
2709                                     spawns[i].name);
2710                                 return (0);
2711                         } else
2712                                 return (1);
2713                 }
2714         }
2715         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2716         return (1);
2717 }
2718 void
2719 setup_keys(void)
2720 {
2721         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2722         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2723         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2724         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2725         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2726         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2727         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2728         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2729         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2730         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2731         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2732         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2733         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2734         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2735         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2736         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2737         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2738         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2739         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2740         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2741         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2742         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2743         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2744         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2745         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2746         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2747         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2748         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2749         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2750         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2751         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2752         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2753         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2754         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2755         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2756         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2757         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2758         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2759         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2760         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2761         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2762         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2763         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2764         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2765         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2766         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2767         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2768         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2769         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2770         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2771         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2772         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2773         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2774 }
2775 void
2776 updatenumlockmask(void)
2777 {
2778         unsigned int            i, j;
2779         XModifierKeymap         *modmap;
2780
2781         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2782         numlockmask = 0;
2783         modmap = XGetModifierMapping(display);
2784         for (i = 0; i < 8; i++)
2785                 for (j = 0; j < modmap->max_keypermod; j++)
2786                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2787                           == XKeysymToKeycode(display, XK_Num_Lock))
2788                                 numlockmask = (1 << i);
2789
2790         XFreeModifiermap(modmap);
2791 }
2792
2793 void
2794 grabkeys(void)
2795 {
2796         unsigned int            i, j, k;
2797         KeyCode                 code;
2798         unsigned int            modifiers[] =
2799             { 0, LockMask, numlockmask, numlockmask | LockMask };
2800
2801         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2802         updatenumlockmask();
2803
2804         for (k = 0; k < ScreenCount(display); k++) {
2805                 if (TAILQ_EMPTY(&screens[k].rl))
2806                         continue;
2807                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2808                 for (i = 0; i < keys_length; i++) {
2809                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2810                                 for (j = 0; j < LENGTH(modifiers); j++)
2811                                         XGrabKey(display, code,
2812                                             keys[i].mod | modifiers[j],
2813                                             screens[k].root, True,
2814                                             GrabModeAsync, GrabModeAsync);
2815                 }
2816         }
2817 }
2818
2819 void
2820 grabbuttons(struct ws_win *win, int focused)
2821 {
2822         unsigned int            i, j;
2823         unsigned int            modifiers[] =
2824             { 0, LockMask, numlockmask, numlockmask|LockMask };
2825
2826         updatenumlockmask();
2827         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2828         if(focused) {
2829                 for (i = 0; i < LENGTH(buttons); i++)
2830                         if (buttons[i].action == client_click)
2831                                 for (j = 0; j < LENGTH(modifiers); j++)
2832                                         XGrabButton(display, buttons[i].button,
2833                                             buttons[i].mask | modifiers[j],
2834                                             win->id, False, BUTTONMASK,
2835                                             GrabModeAsync, GrabModeSync, None,
2836                                             None);
2837         } else
2838                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2839                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2840 }
2841
2842 const char *quirkname[] = {
2843         "NONE",         /* config string for "no value" */
2844         "FLOAT",
2845         "TRANSSZ",
2846         "ANYWHERE",
2847         "XTERM_FONTADJ",
2848         "FULLSCREEN",
2849 };
2850
2851 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2852 #define SWM_Q_WS                "\n|+ \t"
2853 int
2854 parsequirks(char *qstr, unsigned long *quirk)
2855 {
2856         char                    *cp, *name;
2857         int                     i;
2858
2859         if (quirk == NULL)
2860                 return (1);
2861
2862         cp = qstr;
2863         *quirk = 0;
2864         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2865                 if (cp)
2866                         cp += (long)strspn(cp, SWM_Q_WS);
2867                 for (i = 0; i < LENGTH(quirkname); i++) {
2868                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2869                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2870                                 if (i == 0) {
2871                                         *quirk = 0;
2872                                         return (0);
2873                                 }
2874                                 *quirk |= 1 << (i-1);
2875                                 break;
2876                         }
2877                 }
2878                 if (i >= LENGTH(quirkname)) {
2879                         DNPRINTF(SWM_D_QUIRK,
2880                             "parsequirks: invalid quirk [%s]\n", name);
2881                         return (1);
2882                 }
2883         }
2884         return (0);
2885 }
2886 void
2887 setquirk(const char *class, const char *name, const int quirk)
2888 {
2889         int                     i, j;
2890
2891         /* find existing */
2892         for (i = 0; i < quirks_length; i++) {
2893                 if (!strcmp(quirks[i].class, class) &&
2894                     !strcmp(quirks[i].name, name)) {
2895                         if (!quirk) {
2896                                 /* found: delete */
2897                                 DNPRINTF(SWM_D_QUIRK,
2898                                     "setquirk: delete #%d %s:%s\n",
2899                                     i, quirks[i].class, quirks[i].name);
2900                                 free(quirks[i].class);
2901                                 free(quirks[i].name);
2902                                 j = quirks_length - 1;
2903                                 if (i < j)
2904                                         quirks[i] = quirks[j];
2905                                 quirks_length--;
2906                                 return;
2907                         } else {
2908                                 /* found: replace */
2909                                 DNPRINTF(SWM_D_QUIRK,
2910                                     "setquirk: replace #%d %s:%s\n",
2911                                     i, quirks[i].class, quirks[i].name);
2912                                 free(quirks[i].class);
2913                                 free(quirks[i].name);
2914                                 quirks[i].class = strdup(class);
2915                                 quirks[i].name = strdup(name);
2916                                 quirks[i].quirk = quirk;
2917                                 return;
2918                         }
2919                 }
2920         }
2921         if (!quirk) {
2922                 fprintf(stderr,
2923                     "error: setquirk: cannot find class/name combination");
2924                 return;
2925         }
2926         /* not found: add */
2927         if (quirks_size == 0 || quirks == NULL) {
2928                 quirks_size = 4;
2929                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2930                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2931                 if (!quirks) {
2932                         fprintf(stderr, "setquirk: malloc failed\n");
2933                         perror(" failed");
2934                         quit(NULL, NULL);
2935                 }
2936         } else if (quirks_length == quirks_size) {
2937                 quirks_size *= 2;
2938                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2939                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2940                 if (!quirks) {
2941                         fprintf(stderr, "setquirk: realloc failed\n");
2942                         perror(" failed");
2943                         quit(NULL, NULL);
2944                 }
2945         }
2946         if (quirks_length < quirks_size) {
2947                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2948                 j = quirks_length++;
2949                 quirks[j].class = strdup(class);
2950                 quirks[j].name = strdup(name);
2951                 quirks[j].quirk = quirk;
2952         } else {
2953                 fprintf(stderr, "quirks array problem?\n");
2954                 if (!quirks) {
2955                         fprintf(stderr, "quirks array problem!\n");
2956                         quit(NULL, NULL);
2957                 }
2958         }
2959 }
2960 int
2961 setconfquirk(char *selector, char *value, int flags)
2962 {
2963         char                    *cp, *class, *name;
2964         int                     retval;
2965         unsigned long           quirks;
2966         if (selector == NULL)
2967                 return (0);
2968         if ((cp = strchr(selector, ':')) == NULL)
2969                 return (0);
2970         *cp = '\0';
2971         class = selector;
2972         name = cp + 1;
2973         if ((retval = parsequirks(value, &quirks)) == 0)
2974                 setquirk(class, name, quirks);
2975         return (retval);
2976 }
2977
2978 void
2979 setup_quirks(void)
2980 {
2981         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
2982         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
2983         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
2984         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
2985         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
2986         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2987         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
2988         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2989         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2990         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2991         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2992         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
2993         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
2994 }
2995
2996 /* conf file stuff */
2997 #define SWM_CONF_FILE   "scrotwm.conf"
2998
2999 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3000           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3001           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3002           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3003           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3004
3005 int
3006 setconfvalue(char *selector, char *value, int flags)
3007 {
3008         switch (flags) {
3009         case SWM_S_BAR_DELAY:
3010                 bar_delay = atoi(value);
3011                 break;
3012         case SWM_S_BAR_ENABLED:
3013                 bar_enabled = atoi(value);
3014                 break;
3015         case SWM_S_STACK_ENABLED:
3016                 stack_enabled = atoi(value);
3017                 break;
3018         case SWM_S_CLOCK_ENABLED:
3019                 clock_enabled = atoi(value);
3020                 break;
3021         case SWM_S_CYCLE_EMPTY:
3022                 cycle_empty = atoi(value);
3023                 break;
3024         case SWM_S_CYCLE_VISIBLE:
3025                 cycle_visible = atoi(value);
3026                 break;
3027         case SWM_S_SS_ENABLED:
3028                 ss_enabled = atoi(value);
3029                 break;
3030         case SWM_S_TERM_WIDTH:
3031                 term_width = atoi(value);
3032                 break;
3033         case SWM_S_TITLE_CLASS_ENABLED:
3034                 title_class_enabled = atoi(value);
3035                 break;
3036         case SWM_S_TITLE_NAME_ENABLED:
3037                 title_name_enabled = atoi(value);
3038                 break;
3039         case SWM_S_BAR_FONT:
3040                 free(bar_fonts[0]);
3041                 if ((bar_fonts[0] = strdup(value)) == NULL)
3042                         err(1, "setconfvalue: bar_font");
3043                 break;
3044         case SWM_S_BAR_ACTION:
3045                 free(bar_argv[0]);
3046                 if ((bar_argv[0] = strdup(value)) == NULL)
3047                         err(1, "setconfvalue: bar_action");
3048                 break;
3049         case SWM_S_SPAWN_TERM:
3050                 free(spawn_term[0]);
3051                 if ((spawn_term[0] = strdup(value)) == NULL)
3052                         err(1, "setconfvalue: spawn_term");
3053                 break;
3054         case SWM_S_SS_APP:
3055                 break;
3056         case SWM_S_DIALOG_RATIO:
3057                 dialog_ratio = atof(value);
3058                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3059                         dialog_ratio = .6;
3060                 break;
3061         default:
3062                 return (1);
3063         }
3064         return (0);
3065 }
3066
3067 int
3068 setconfmodkey(char *selector, char *value, int flags)
3069 {
3070         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3071                 update_modkey(Mod1Mask);
3072         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3073                 update_modkey(Mod2Mask);
3074         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3075                 update_modkey(Mod3Mask);
3076         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3077                 update_modkey(Mod4Mask);
3078         else
3079                 return (1);
3080         return (0);
3081 }
3082
3083 int
3084 setconfcolor(char *selector, char *value, int flags)
3085 {
3086         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3087         return (0);
3088 }
3089
3090 int
3091 setconfregion(char *selector, char *value, int flags)
3092 {
3093         custom_region(value);
3094         return (0);
3095 }
3096
3097 /* config options */
3098 struct config_option {
3099         char                    *optname;
3100         int (*func)(char*, char*, int);
3101         int funcflags;
3102 };
3103 struct config_option configopt[] = {
3104         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3105         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3106         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3107         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3108         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3109         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3110         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3111         { "bind",                       setconfbinding, 0 },
3112         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3113         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3114         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3115         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3116         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3117         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3118         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3119         { "modkey",                     setconfmodkey,  0 },
3120         { "program",                    setconfspawn,   0 },
3121         { "quirk",                      setconfquirk,   0 },
3122         { "region",                     setconfregion,  0 },
3123         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3124         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3125         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3126         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3127         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3128         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3129 };
3130
3131
3132 int
3133 conf_load(char *filename)
3134 {
3135         FILE                    *config;
3136         char                    *line, *cp, *optsub, *optval;
3137         size_t                  linelen, lineno = 0;
3138         int                     wordlen, i, optind;
3139         struct config_option    *opt;
3140
3141         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3142
3143         if (filename == NULL) {
3144                 fprintf(stderr, "conf_load: no filename\n");
3145                 return (1);
3146         }
3147         if ((config = fopen(filename, "r")) == NULL) {
3148                 warn("conf_load: fopen");
3149                 return (1);
3150         }
3151
3152         while (!feof(config)) {
3153                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3154                     == NULL) {
3155                         if (ferror(config))
3156                                 err(1, "%s", filename);
3157                         else
3158                                 continue;
3159                 }
3160                 cp = line;
3161                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3162                 if (cp[0] == '\0') {
3163                         /* empty line */
3164                         free(line);
3165                         continue;
3166                 }
3167                 /* get config option */
3168                 wordlen = strcspn(cp, "=[ \t\n");
3169                 if (wordlen == 0) {
3170                         warnx("%s: line %zd: no option found",
3171                             filename, lineno);
3172                         return (1);
3173                 }
3174                 optind = -1;
3175                 for (i = 0; i < LENGTH(configopt); i++) {
3176                         opt = &configopt[i];
3177                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3178                             strlen(opt->optname) == wordlen) {
3179                                 optind = i;
3180                                 break;
3181                         }
3182                 }
3183                 if (optind == -1) {
3184                         warnx("%s: line %zd: unknown option %.*s",
3185                             filename, lineno, wordlen, cp);
3186                         return (1);
3187                 }
3188                 cp += wordlen;
3189                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3190                 /* get [selector] if any */
3191                 optsub = NULL;
3192                 if (*cp == '[') {
3193                         cp++;
3194                         wordlen = strcspn(cp, "]");
3195                         if (*cp != ']') {
3196                                 if (wordlen == 0) {
3197                                         warnx("%s: line %zd: syntax error",
3198                                             filename, lineno);
3199                                         return (1);
3200                                 }
3201                                 asprintf(&optsub, "%.*s", wordlen, cp);
3202                         }
3203                         cp += wordlen;
3204                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3205                 }
3206                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3207                 /* get RHS value */
3208                 optval = strdup(cp);
3209                 /* call function to deal with it all */
3210                 if (configopt[optind].func(optsub, optval,
3211                     configopt[optind].funcflags) != 0) {
3212                         fprintf(stderr, "%s line %zd: %s\n",
3213                             filename, lineno, line);
3214                         errx(1, "%s: line %zd: invalid data for %s",
3215                             filename, lineno, configopt[optind].optname);
3216                 }
3217                 free(optval);
3218                 free(optsub);
3219                 free(line);
3220         }
3221
3222         fclose(config);
3223         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3224
3225         return (0);
3226 }
3227
3228 struct ws_win *
3229 manage_window(Window id)
3230 {
3231         Window                  trans = 0;
3232         struct workspace        *ws;
3233         struct ws_win           *win, *ww;
3234         int                     format, i, ws_idx, n, border_me = 0;
3235         unsigned long           nitems, bytes;
3236         Atom                    ws_idx_atom = 0, type;
3237         Atom                    *prot = NULL, *pp;
3238         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3239         struct swm_region       *r;
3240         long                    mask;
3241         const char              *errstr;
3242         XWindowChanges          wc;
3243
3244         if ((win = find_window(id)) != NULL)
3245                         return (win);   /* already being managed */
3246
3247         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3248                 errx(1, "calloc: failed to allocate memory for new window");
3249
3250         /* Get all the window data in one shot */
3251         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3252         if (ws_idx_atom)
3253                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3254                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3255         XGetWindowAttributes(display, id, &win->wa);
3256         XGetWMNormalHints(display, id, &win->sh, &mask);
3257         XGetTransientForHint(display, id, &trans);
3258         if (trans) {
3259                 win->transient = trans;
3260                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3261                     (unsigned)win->id, win->transient);
3262         }
3263         /* get supported protocols */
3264         if (XGetWMProtocols(display, id, &prot, &n)) {
3265                 for (i = 0, pp = prot; i < n; i++, pp++)
3266                         if (*pp == adelete)
3267                                 win->can_delete = 1;
3268                 if (prot)
3269                         XFree(prot);
3270         }
3271
3272         /*
3273          * Figure out where to put the window. If it was previously assigned to
3274          * a workspace (either by spawn() or manually moving), and isn't
3275          * transient, * put it in the same workspace
3276          */
3277         r = root_to_region(win->wa.root);
3278         if (prop && win->transient == 0) {
3279                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3280                 ws_idx = strtonum(prop, 0, 9, &errstr);
3281                 if (errstr) {
3282                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3283                             errstr, prop);
3284                 }
3285                 ws = &r->s->ws[ws_idx];
3286         } else {
3287                 ws = r->ws;
3288                 /* this should launch transients in the same ws as parent */
3289                 if (id && trans)
3290                         if ((ww = find_window(trans)) != NULL)
3291                                 if (ws->r) {
3292                                         ws = ww->ws;
3293                                         if (ww->ws->r)
3294                                                 r = ww->ws->r;
3295                                         else
3296                                                 fprintf(stderr,
3297                                                     "fix this bug mcbride\n");
3298                                         border_me = 1;
3299                                 }
3300         }
3301
3302         /* set up the window layout */
3303         win->id = id;
3304         win->ws = ws;
3305         win->s = r->s;  /* this never changes */
3306         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3307
3308         win->g.w = win->wa.width;
3309         win->g.h = win->wa.height;
3310         win->g.x = win->wa.x;
3311         win->g.y = win->wa.y;
3312
3313         /* Set window properties so we can remember this after reincarnation */
3314         if (ws_idx_atom && prop == NULL &&
3315             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3316                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3317                     ws_idx_str);
3318                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3319                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3320         }
3321         XFree(prop);
3322
3323         if (XGetClassHint(display, win->id, &win->ch)) {
3324                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3325                     win->ch.res_class, win->ch.res_name);
3326                 for (i = 0; i < quirks_length; i++){
3327                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3328                             !strcmp(win->ch.res_name, quirks[i].name)) {
3329                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3330                                     win->ch.res_class, win->ch.res_name);
3331                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3332                                         win->floating = 1;
3333                                 win->quirks = quirks[i].quirk;
3334                         }
3335                 }
3336         }
3337
3338         /* alter window position if quirky */
3339         if (win->quirks & SWM_Q_ANYWHERE) {
3340                 win->manual = 1; /* don't center the quirky windows */
3341                 bzero(&wc, sizeof wc);
3342                 mask = 0;
3343                 if (win->g.y < bar_height) {
3344                         win->g.y = wc.y = bar_height;
3345                         mask |= CWY;
3346                 }
3347                 if (win->g.w + win->g.x > WIDTH(r)) {
3348                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3349                         mask |= CWX;
3350                 }
3351                 border_me = 1;
3352         }
3353
3354         /* Reset font sizes (the bruteforce way; no default keybinding). */
3355         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3356                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3357                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3358                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3359                         fake_keypress(win, XK_KP_Add, ShiftMask);
3360         }
3361
3362         /* border me */
3363         if (border_me) {
3364                 bzero(&wc, sizeof wc);
3365                 wc.border_width = 1;
3366                 mask = CWBorderWidth;
3367                 XConfigureWindow(display, win->id, mask, &wc);
3368         }
3369
3370         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3371             PropertyChangeMask | StructureNotifyMask);
3372
3373         set_win_state(win, NormalState);
3374
3375         /* floaters need to be mapped if they are in the current workspace */
3376         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3377                 XMapRaised(display, win->id);
3378
3379         return (win);
3380 }
3381
3382 void
3383 unmanage_window(struct ws_win *win)
3384 {
3385         struct workspace        *ws;
3386
3387         if (win == NULL)
3388                 return;
3389
3390         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3391
3392         ws = win->ws;
3393         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3394         set_win_state(win, WithdrawnState);
3395         if (win->ch.res_class)
3396                 XFree(win->ch.res_class);
3397         if (win->ch.res_name)
3398                 XFree(win->ch.res_name);
3399         free(win);
3400 }
3401
3402 void
3403 expose(XEvent *e)
3404 {
3405         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3406 }
3407
3408 void
3409 keypress(XEvent *e)
3410 {
3411         unsigned int            i;
3412         KeySym                  keysym;
3413         XKeyEvent               *ev = &e->xkey;
3414
3415         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3416
3417         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3418         for (i = 0; i < keys_length; i++)
3419                 if (keysym == keys[i].keysym
3420                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3421                    && keyfuncs[keys[i].funcid].func) {
3422                         if (keys[i].funcid == kf_spawn_custom)
3423                                 spawn_custom(
3424                                     root_to_region(ev->root),
3425                                     &(keyfuncs[keys[i].funcid].args),
3426                                     keys[i].spawn_name
3427                                     );
3428                         else
3429                                 keyfuncs[keys[i].funcid].func(
3430                                     root_to_region(ev->root),
3431                                     &(keyfuncs[keys[i].funcid].args)
3432                                     );
3433                 }
3434 }
3435
3436 void
3437 buttonpress(XEvent *e)
3438 {
3439         XButtonPressedEvent     *ev = &e->xbutton;
3440
3441         struct ws_win           *win;
3442         int                     i, action;
3443
3444         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3445
3446         action = root_click;
3447         if ((win = find_window(ev->window)) == NULL)
3448                 return;
3449         else {
3450                 focus_win(win);
3451                 action = client_click;
3452         }
3453
3454         for (i = 0; i < LENGTH(buttons); i++)
3455                 if (action == buttons[i].action && buttons[i].func &&
3456                     buttons[i].button == ev->button &&
3457                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3458                         buttons[i].func(win, &buttons[i].args);
3459 }
3460
3461 void
3462 configurerequest(XEvent *e)
3463 {
3464         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3465         struct ws_win           *win;
3466         int                     new = 0;
3467         XWindowChanges          wc;
3468
3469         if ((win = find_window(ev->window)) == NULL)
3470                 new = 1;
3471
3472         if (new) {
3473                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3474                     ev->window);
3475                 bzero(&wc, sizeof wc);
3476                 wc.x = ev->x;
3477                 wc.y = ev->y;
3478                 wc.width = ev->width;
3479                 wc.height = ev->height;
3480                 wc.border_width = ev->border_width;
3481                 wc.sibling = ev->above;
3482                 wc.stack_mode = ev->detail;
3483                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3484         } else {
3485                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3486                     ev->window);
3487                 if (win->floating) {
3488                         if (ev->value_mask & CWX)
3489                                 win->g.x = ev->x;
3490                         if (ev->value_mask & CWY)
3491                                 win->g.y = ev->y;
3492                         if (ev->value_mask & CWWidth)
3493                                 win->g.w = ev->width;
3494                         if (ev->value_mask & CWHeight)
3495                                 win->g.h = ev->height;
3496                         if (win->ws->r != NULL) {
3497                                 /* this seems to be full screen */
3498                                 if (win->g.w >= WIDTH(win->ws->r)) {
3499                                         win->g.x = 0;
3500                                         win->g.w = WIDTH(win->ws->r);
3501                                         ev->value_mask |= CWX | CWWidth;
3502                                 }
3503                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3504                                         /* kill border */
3505                                         win->g.y = 0;
3506                                         win->g.h = HEIGHT(win->ws->r);
3507                                         ev->value_mask |= CWY | CWHeight;
3508                                 }
3509                         }
3510                         if ((ev->value_mask & (CWX | CWY)) &&
3511                             !(ev->value_mask & (CWWidth | CWHeight)))
3512                                 config_win(win);
3513                         XMoveResizeWindow(display, win->id,
3514                             win->g.x, win->g.y, win->g.w, win->g.h);
3515                 } else
3516                         config_win(win);
3517         }
3518 }
3519
3520 void
3521 configurenotify(XEvent *e)
3522 {
3523         struct ws_win           *win;
3524         long                    mask;
3525
3526         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3527             e->xconfigure.window);
3528
3529         XMapWindow(display, e->xconfigure.window);
3530         win = find_window(e->xconfigure.window);
3531         if (win) {
3532                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3533                 adjust_font(win);
3534                 XMapWindow(display, win->id);
3535                 if (font_adjusted)
3536                         stack();
3537         }
3538 }
3539
3540 void
3541 destroynotify(XEvent *e)
3542 {
3543         struct ws_win           *win, *winfocus = NULL;
3544         struct workspace        *ws;
3545         struct ws_win_list      *wl;
3546
3547         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3548
3549         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3550
3551         SWM_EV_PROLOGUE(display);
3552
3553         if ((win = find_window(ev->window)) != NULL) {
3554                 /* find a window to focus */
3555                 ws = win->ws;
3556                 wl = &ws->winlist;
3557
3558                 /* if we are transient give focus to parent */
3559                 if (win->transient)
3560                         winfocus = find_window(win->transient);
3561                 else if (ws->focus == win) {
3562                         /* if in max_stack try harder */
3563                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3564                                 if (win != ws->focus && win != ws->focus_prev)
3565                                         winfocus = ws->focus_prev;
3566
3567                         /* fallback and normal handling */
3568                         if (winfocus == NULL) {
3569                                 if (TAILQ_FIRST(wl) == win)
3570                                         winfocus = TAILQ_NEXT(win, entry);
3571                                 else {
3572                                         winfocus = TAILQ_PREV(ws->focus,
3573                                             ws_win_list, entry);
3574                                         if (winfocus == NULL)
3575                                                 winfocus = TAILQ_LAST(wl,
3576                                                     ws_win_list);
3577                                 }
3578                         }
3579                 }
3580
3581                 unmanage_window(win);
3582                 stack();
3583                 if (winfocus)
3584                         focus_win(winfocus);
3585         }
3586
3587         SWM_EV_EPILOGUE(display);
3588 }
3589
3590 void
3591 enternotify(XEvent *e)
3592 {
3593         XCrossingEvent          *ev = &e->xcrossing;
3594         struct ws_win           *win;
3595
3596         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3597
3598         if (ignore_enter) {
3599                 /* eat event(r) to prevent autofocus */
3600                 ignore_enter = 0;
3601                 return;
3602         }
3603         /*
3604          * happens when a window is created or destroyed and the border
3605          * crosses the mouse pointer
3606          */
3607         if (QLength(display))
3608                 return;
3609
3610         if ((win = find_window(ev->window)) != NULL)
3611                 focus_win(win);
3612 }
3613
3614 void
3615 focusin(XEvent *e)
3616 {
3617         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3618 }
3619
3620 void
3621 focusout(XEvent *e)
3622 {
3623         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3624 }
3625
3626 void
3627 mapnotify(XEvent *e)
3628 {
3629         struct ws_win           *win;
3630         XMappingEvent           *ev = &e->xmapping;
3631
3632         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3633
3634         SWM_EV_PROLOGUE(display);
3635
3636         win = find_window(ev->window);
3637         if (win)
3638                 set_win_state(win, NormalState);
3639
3640         XRefreshKeyboardMapping(ev);
3641         if (ev->request == MappingKeyboard)
3642                 grabkeys();
3643
3644         SWM_EV_EPILOGUE(display);
3645 }
3646
3647 void
3648 maprequest(XEvent *e)
3649 {
3650         struct ws_win           *win;
3651         struct swm_region       *r;
3652
3653         XMapRequestEvent        *ev = &e->xmaprequest;
3654         XWindowAttributes       wa;
3655
3656         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3657             e->xmaprequest.window);
3658
3659         SWM_EV_PROLOGUE(display);
3660
3661         if (!XGetWindowAttributes(display, ev->window, &wa))
3662                 goto done;
3663         if (wa.override_redirect)
3664                 goto done;
3665
3666         manage_window(e->xmaprequest.window);
3667
3668         stack();
3669
3670         /* make new win focused */
3671         win = find_window(ev->window);
3672         r = root_to_region(win->wa.root);
3673
3674         if (win->ws == r->ws)
3675                 focus_win(win);
3676
3677 done:
3678         SWM_EV_EPILOGUE(display);
3679 }
3680
3681 void
3682 propertynotify(XEvent *e)
3683 {
3684         struct ws_win           *win;
3685         XPropertyEvent          *ev = &e->xproperty;
3686
3687         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3688             ev->window);
3689
3690         if (ev->state == PropertyDelete)
3691                 return; /* ignore */
3692         win = find_window(ev->window);
3693         if (win == NULL)
3694                 return;
3695
3696         switch (ev->atom) {
3697         case XA_WM_NORMAL_HINTS:
3698 #if 0
3699                 long            mask;
3700                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3701                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3702                 if (win->sh.flags & PMinSize) {
3703                         win->g.w = win->sh.min_width;
3704                         win->g.h = win->sh.min_height;
3705                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3706                 }
3707                 XMoveResizeWindow(display, win->id,
3708                     win->g.x, win->g.y, win->g.w, win->g.h);
3709 #endif
3710                 break;
3711         default:
3712                 break;
3713         }
3714 }
3715
3716 void
3717 unmapnotify(XEvent *e)
3718 {
3719         struct ws_win           *win, *winfocus = NULL;
3720         struct workspace        *ws;
3721
3722         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3723
3724         SWM_EV_PROLOGUE(display);
3725
3726         /* determine if we need to help unmanage this window */
3727         win = find_window(e->xunmap.window);
3728         if (win == NULL)
3729                 goto done;
3730
3731         if (getstate(e->xunmap.window) == NormalState) {
3732                 /*
3733                  * this window does not have a destroy event but but it is no
3734                  * longer visible due to the app unmapping it so unmanage it
3735                  */
3736
3737                 ws = win->ws;
3738                 /* if we are max_stack try harder to focus on something */
3739                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3740                         if (win != ws->focus && win != ws->focus_prev)
3741                                 winfocus = ws->focus_prev;
3742
3743                 /* normal and fallback if haven't found anything to focus on */
3744                 if (winfocus == NULL) {
3745                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3746                         if (TAILQ_FIRST(&ws->winlist) == win)
3747                                 winfocus = TAILQ_NEXT(win, entry);
3748                         else {
3749                                 if (ws->focus)
3750                                         winfocus = TAILQ_PREV(ws->focus,
3751                                             ws_win_list, entry);
3752                                 if (winfocus == NULL)
3753                                         winfocus = TAILQ_LAST(&ws->winlist,
3754                                             ws_win_list);
3755                         }
3756                 }
3757
3758                 /* trash window and refocus */
3759                 unmanage_window(win);
3760                 stack();
3761                 focus_win(winfocus);
3762         }
3763
3764 done:
3765         SWM_EV_EPILOGUE(display);
3766 }
3767
3768 void
3769 visibilitynotify(XEvent *e)
3770 {
3771         int                     i;
3772         struct swm_region       *r;
3773
3774         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3775             e->xvisibility.window);
3776         if (e->xvisibility.state == VisibilityUnobscured)
3777                 for (i = 0; i < ScreenCount(display); i++)
3778                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3779                                 if (e->xvisibility.window == r->bar_window)
3780                                         bar_update();
3781 }
3782
3783 int
3784 xerror_start(Display *d, XErrorEvent *ee)
3785 {
3786         other_wm = 1;
3787         return (-1);
3788 }
3789
3790 int
3791 xerror(Display *d, XErrorEvent *ee)
3792 {
3793         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3794         return (-1);
3795 }
3796
3797 int
3798 active_wm(void)
3799 {
3800         other_wm = 0;
3801         xerrorxlib = XSetErrorHandler(xerror_start);
3802
3803         /* this causes an error if some other window manager is running */
3804         XSelectInput(display, DefaultRootWindow(display),
3805             SubstructureRedirectMask);
3806         XSync(display, False);
3807         if (other_wm)
3808                 return (1);
3809
3810         XSetErrorHandler(xerror);
3811         XSync(display, False);
3812         return (0);
3813 }
3814
3815 void
3816 new_region(struct swm_screen *s, int x, int y, int w, int h)
3817 {
3818         struct swm_region       *r, *n;
3819         struct workspace        *ws = NULL;
3820         int                     i;
3821
3822         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3823              s->idx, w, h, x, y);
3824
3825         /* remove any conflicting regions */
3826         n = TAILQ_FIRST(&s->rl);
3827         while (n) {
3828                 r = n;
3829                 n = TAILQ_NEXT(r, entry);
3830                 if (X(r) < (x + w) &&
3831                     (X(r) + WIDTH(r)) > x &&
3832                     Y(r) < (y + h) &&
3833                     (Y(r) + HEIGHT(r)) > y) {
3834                         XDestroyWindow(display, r->bar_window);
3835                         TAILQ_REMOVE(&s->rl, r, entry);
3836                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3837                 }
3838         }
3839
3840         /* search old regions for one to reuse */
3841
3842         /* size + location match */
3843         TAILQ_FOREACH(r, &s->orl, entry)
3844                 if (X(r) == x && Y(r) == y &&
3845                     HEIGHT(r) == h && WIDTH(r) == w)
3846                         break;
3847
3848         /* size match */
3849         TAILQ_FOREACH(r, &s->orl, entry)
3850                 if (HEIGHT(r) == h && WIDTH(r) == w)
3851                         break;
3852
3853         if (r != NULL) {
3854                 TAILQ_REMOVE(&s->orl, r, entry);
3855                 /* try to use old region's workspace */
3856                 if (r->ws->r == NULL)
3857                         ws = r->ws;
3858         } else
3859                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3860                         errx(1, "calloc: failed to allocate memory for screen");
3861
3862         /* if we don't have a workspace already, find one */
3863         if (ws == NULL) {
3864                 for (i = 0; i < SWM_WS_MAX; i++)
3865                         if (s->ws[i].r == NULL) {
3866                                 ws = &s->ws[i];
3867                                 break;
3868                         }
3869         }
3870
3871         if (ws == NULL)
3872                 errx(1, "no free workspaces\n");
3873
3874         X(r) = x;
3875         Y(r) = y;
3876         WIDTH(r) = w;
3877         HEIGHT(r) = h;
3878         r->s = s;
3879         r->ws = ws;
3880         ws->r = r;
3881         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3882 }
3883
3884 void
3885 scan_xrandr(int i)
3886 {
3887 #ifdef SWM_XRR_HAS_CRTC
3888         XRRCrtcInfo             *ci;
3889         XRRScreenResources      *sr;
3890         int                     c;
3891         int                     ncrtc = 0;
3892 #endif /* SWM_XRR_HAS_CRTC */
3893         struct swm_region       *r;
3894
3895
3896         if (i >= ScreenCount(display))
3897                 errx(1, "invalid screen");
3898
3899         /* remove any old regions */
3900         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3901                 r->ws->old_r = r->ws->r = NULL;
3902                 XDestroyWindow(display, r->bar_window);
3903                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3904                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3905         }
3906
3907         /* map virtual screens onto physical screens */
3908 #ifdef SWM_XRR_HAS_CRTC
3909         outputs = 0;
3910         if (xrandr_support) {
3911                 sr = XRRGetScreenResources(display, screens[i].root);
3912                 if (sr == NULL)
3913                         new_region(&screens[i], 0, 0,
3914                             DisplayWidth(display, i),
3915                             DisplayHeight(display, i));
3916                 else
3917                         ncrtc = sr->ncrtc;
3918
3919                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3920                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3921                         if (ci->noutput == 0)
3922                                 continue;
3923                         outputs++;
3924
3925                         if (ci != NULL && ci->mode == None)
3926                                 new_region(&screens[i], 0, 0,
3927                                     DisplayWidth(display, i),
3928                                     DisplayHeight(display, i));
3929                         else
3930                                 new_region(&screens[i],
3931                                     ci->x, ci->y, ci->width, ci->height);
3932                 }
3933                 if (ci)
3934                         XRRFreeCrtcInfo(ci);
3935                 XRRFreeScreenResources(sr);
3936         } else
3937 #endif /* SWM_XRR_HAS_CRTC */
3938         {
3939                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3940                     DisplayHeight(display, i));
3941         }
3942 }
3943
3944 void
3945 screenchange(XEvent *e) {
3946         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3947         struct swm_region               *r;
3948         int                             i;
3949
3950         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3951
3952         if (!XRRUpdateConfiguration(e))
3953                 return;
3954
3955         /* silly event doesn't include the screen index */
3956         for (i = 0; i < ScreenCount(display); i++)
3957                 if (screens[i].root == xe->root)
3958                         break;
3959         if (i >= ScreenCount(display))
3960                 errx(1, "screenchange: screen not found\n");
3961
3962         /* brute force for now, just re-enumerate the regions */
3963         scan_xrandr(i);
3964
3965         /* add bars to all regions */
3966         for (i = 0; i < ScreenCount(display); i++)
3967                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3968                         bar_setup(r);
3969         stack();
3970 }
3971
3972 void
3973 setup_screens(void)
3974 {
3975         Window                  d1, d2, *wins = NULL;
3976         XWindowAttributes       wa;
3977         unsigned int            no;
3978         int                     i, j, k;
3979         int                     errorbase, major, minor;
3980         struct workspace        *ws;
3981         int                     ws_idx_atom;
3982         long                    state, manage;
3983
3984         if ((screens = calloc(ScreenCount(display),
3985              sizeof(struct swm_screen))) == NULL)
3986                 errx(1, "calloc: screens");
3987
3988         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3989
3990         /* initial Xrandr setup */
3991         xrandr_support = XRRQueryExtension(display,
3992             &xrandr_eventbase, &errorbase);
3993         if (xrandr_support)
3994                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
3995                         xrandr_support = 0;
3996
3997         /* map physical screens */
3998         for (i = 0; i < ScreenCount(display); i++) {
3999                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4000                 screens[i].idx = i;
4001                 TAILQ_INIT(&screens[i].rl);
4002                 TAILQ_INIT(&screens[i].orl);
4003                 screens[i].root = RootWindow(display, i);
4004
4005                 /* set default colors */
4006                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4007                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4008                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4009                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4010                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4011
4012                 /* init all workspaces */
4013                 /* XXX these should be dynamically allocated too */
4014                 for (j = 0; j < SWM_WS_MAX; j++) {
4015                         ws = &screens[i].ws[j];
4016                         ws->idx = j;
4017                         ws->restack = 1;
4018                         ws->focus = NULL;
4019                         ws->r = NULL;
4020                         ws->old_r = NULL;
4021                         TAILQ_INIT(&ws->winlist);
4022
4023                         for (k = 0; layouts[k].l_stack != NULL; k++)
4024                                 if (layouts[k].l_config != NULL)
4025                                         layouts[k].l_config(ws,
4026                                             SWM_ARG_ID_STACKINIT);
4027                         ws->cur_layout = &layouts[0];
4028                 }
4029                 /* grab existing windows (before we build the bars)*/
4030                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4031                         continue;
4032
4033                 scan_xrandr(i);
4034
4035                 if (xrandr_support)
4036                         XRRSelectInput(display, screens[i].root,
4037                             RRScreenChangeNotifyMask);
4038
4039                 /* attach windows to a region */
4040                 /* normal windows */
4041                 for (j = 0; j < no; j++) {
4042                         XGetWindowAttributes(display, wins[j], &wa);
4043                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4044                             wa.override_redirect ||
4045                             XGetTransientForHint(display, wins[j], &d1))
4046                                 continue;
4047
4048                         state = getstate(wins[j]);
4049                         manage = state == NormalState || state == IconicState;
4050                         if (wa.map_state == IsViewable || manage)
4051                                 manage_window(wins[j]);
4052                 }
4053                 /* transient windows */
4054                 for (j = 0; j < no; j++) {
4055                         if (!XGetWindowAttributes(display, wins[j], &wa))
4056                                 continue;
4057
4058                         state = getstate(wins[j]);
4059                         manage = state == NormalState || state == IconicState;
4060                         if (XGetTransientForHint(display, wins[j], &d1) &&
4061                             manage)
4062                                 manage_window(wins[j]);
4063                 }
4064                 if (wins) {
4065                         XFree(wins);
4066                         wins = NULL;
4067                 }
4068         }
4069 }
4070 void
4071 setup_globals(void)
4072 {
4073         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4074             == NULL)
4075                 err(1, "setup_globals: strdup");
4076         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4077             == NULL)
4078                 err(1, "setup_globals: strdup");
4079         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4080             == NULL)
4081                 err(1, "setup_globals: strdup");
4082         if ((spawn_term[0] = strdup("xterm")) == NULL)
4083                 err(1, "setup_globals: strdup");
4084 }
4085
4086 void
4087 workaround(void)
4088 {
4089         int                     i;
4090         Atom                    netwmcheck, netwmname, utf8_string;
4091         Window                  root;
4092
4093         /* work around sun jdk bugs, code from wmname */
4094         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4095         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4096         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4097         for (i = 0; i < ScreenCount(display); i++) {
4098                 root = screens[i].root;
4099                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4100                     PropModeReplace, (unsigned char *)&root, 1);
4101                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4102                     PropModeReplace, "LG3D", strlen("LG3D"));
4103         }
4104 }
4105
4106 int
4107 main(int argc, char *argv[])
4108 {
4109         struct passwd           *pwd;
4110         struct swm_region       *r, *rr;
4111         struct ws_win           *winfocus = NULL;
4112         char                    conf[PATH_MAX], *cfile = NULL;
4113         struct stat             sb;
4114         XEvent                  e;
4115         int                     xfd, i;
4116         fd_set                  rd;
4117
4118         start_argv = argv;
4119         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4120             SWM_VERSION, cvstag);
4121         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4122                 warnx("no locale support");
4123
4124         if (!(display = XOpenDisplay(0)))
4125                 errx(1, "can not open display");
4126
4127         if (active_wm())
4128                 errx(1, "other wm running");
4129
4130         /* handle some signale */
4131         installsignal(SIGINT, "INT");
4132         installsignal(SIGHUP, "HUP");
4133         installsignal(SIGQUIT, "QUIT");
4134         installsignal(SIGTERM, "TERM");
4135         installsignal(SIGCHLD, "CHLD");
4136
4137         astate = XInternAtom(display, "WM_STATE", False);
4138         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4139         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4140
4141         /* look for local and global conf file */
4142         pwd = getpwuid(getuid());
4143         if (pwd == NULL)
4144                 errx(1, "invalid user %d", getuid());
4145
4146         setup_screens();
4147         setup_globals();
4148         setup_keys();
4149         setup_quirks();
4150         setup_spawn();
4151
4152         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4153         if (stat(conf, &sb) != -1) {
4154                 if (S_ISREG(sb.st_mode))
4155                         cfile = conf;
4156         } else {
4157                 /* try global conf file */
4158                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4159                 if (!stat(conf, &sb))
4160                         if (S_ISREG(sb.st_mode))
4161                                 cfile = conf;
4162         }
4163         if (cfile)
4164                 conf_load(cfile);
4165
4166         /* setup all bars */
4167         for (i = 0; i < ScreenCount(display); i++)
4168                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4169                         if (winfocus == NULL)
4170                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4171                         bar_setup(r);
4172                 }
4173
4174         /* set some values to work around bad programs */
4175         workaround();
4176
4177         grabkeys();
4178         stack();
4179
4180         xfd = ConnectionNumber(display);
4181         while (running) {
4182                 while (XPending(display)) {
4183                         XNextEvent(display, &e);
4184                         if (running == 0)
4185                                 goto done;
4186                         if (e.type < LASTEvent) {
4187                                 dumpevent(&e);
4188                                 if (handler[e.type])
4189                                         handler[e.type](&e);
4190                                 else
4191                                         DNPRINTF(SWM_D_EVENT,
4192                                             "win: %lu unknown event: %d\n",
4193                                             e.xany.window, e.type);
4194                         } else {
4195                                 switch (e.type - xrandr_eventbase) {
4196                                 case RRScreenChangeNotify:
4197                                         screenchange(&e);
4198                                         break;
4199                                 default:
4200                                         DNPRINTF(SWM_D_EVENT,
4201                                             "win: %lu unknown xrandr event: "
4202                                             "%d\n", e.xany.window, e.type);
4203                                         break;
4204                                 }
4205                         }
4206                 }
4207
4208                 /* if we are being restarted go focus on first window */
4209                 if (winfocus) {
4210                         rr = TAILQ_FIRST(&screens[0].rl);
4211                         /* move pointer to first screen if multi screen */
4212                         if (ScreenCount(display) > 1 || outputs > 1)
4213                                 XWarpPointer(display, None, rr->s[0].root,
4214                                     0, 0, 0, 0, rr->g.x,
4215                                     rr->g.y + bar_enabled ? bar_height : 0);
4216
4217                         focus_win(winfocus);
4218                         winfocus = NULL;
4219                         continue;
4220                 }
4221
4222                 FD_ZERO(&rd);
4223                 FD_SET(xfd, &rd);
4224                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4225                         if (errno != EINTR)
4226                                 DNPRINTF(SWM_D_MISC, "select failed");
4227                 if (running == 0)
4228                         goto done;
4229                 if (bar_alarm) {
4230                         bar_alarm = 0;
4231                         bar_update();
4232                 }
4233         }
4234 done:
4235         bar_extra_stop();
4236
4237         XCloseDisplay(display);
4238
4239         return (0);
4240 }