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         if (win->ws->focus == win) {
1197                 win->ws->focus = NULL;
1198                 win->ws->focus_prev = win;
1199         }
1200
1201         grabbuttons(win, 0);
1202         XSetWindowBorder(display, win->id,
1203             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
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                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1237                         XMapRaised(display, win->id);
1238                 XSetInputFocus(display, win->id,
1239                     RevertToPointerRoot, CurrentTime);
1240                 grabbuttons(win, 1);
1241         }
1242 }
1243
1244 void
1245 switchws(struct swm_region *r, union arg *args)
1246 {
1247         int                     wsid = args->id;
1248         struct swm_region       *this_r, *other_r;
1249         struct ws_win           *win, *winfocus = NULL, *parent = NULL;
1250         struct workspace        *new_ws, *old_ws;
1251
1252         this_r = r;
1253         old_ws = this_r->ws;
1254         new_ws = &this_r->s->ws[wsid];
1255
1256         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1257             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1258             old_ws->idx, wsid);
1259
1260         if (new_ws == old_ws)
1261                 return;
1262
1263         /* get focus window */
1264         if (new_ws->focus)
1265                 winfocus = new_ws->focus;
1266         else if (new_ws->focus_prev)
1267                 winfocus = new_ws->focus_prev;
1268         else
1269                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1270
1271         other_r = new_ws->r;
1272         if (other_r == NULL) {
1273                 /* if the other workspace is hidden, switch windows */
1274                 if (old_ws->r != NULL)
1275                         old_ws->old_r = old_ws->r;
1276                 old_ws->r = NULL;
1277                 old_ws->restack = 1;
1278
1279                 /*
1280                  * Map new windows first if they were here before
1281                  * to minimize ugly blinking.
1282                  */
1283                 if (new_ws->old_r == this_r)
1284                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1285                                 if (!(win->ws->cur_layout->flags &
1286                                     SWM_L_MAPONFOCUS))
1287                                         XMapRaised(display, win->id);
1288
1289                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1290                         unmap_window(win);
1291         } else {
1292                 other_r->ws = old_ws;
1293                 old_ws->r = other_r;
1294         }
1295         this_r->ws = new_ws;
1296         new_ws->r = this_r;
1297
1298         ignore_enter = 1;
1299         stack();
1300         if (winfocus) {
1301                 /* make sure we see the parent window */
1302                 if (winfocus->transient) {
1303                         parent = find_window(winfocus->transient);
1304                         if (parent)
1305                                 focus_win(parent);
1306                 }
1307
1308                 focus_win(winfocus);
1309         }
1310         ignore_enter = 0;
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 = NULL;
1356         struct workspace        *ws = NULL;
1357         struct ws_win           *winfocus = NULL;
1358         int                     i, x, y;
1359
1360         /* do nothing if we don't have more than one screen */
1361         if (!(ScreenCount(display) > 1 || outputs > 1))
1362                 return;
1363
1364         i = r->s->idx;
1365         switch (args->id) {
1366         case SWM_ARG_ID_CYCLESC_UP:
1367                 rr = TAILQ_NEXT(r, entry);
1368                 if (rr == NULL)
1369                         rr = TAILQ_FIRST(&screens[i].rl);
1370                 break;
1371         case SWM_ARG_ID_CYCLESC_DOWN:
1372                 rr = TAILQ_PREV(r, swm_region_list, entry);
1373                 if (rr == NULL)
1374                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1375                 break;
1376         default:
1377                 return;
1378         };
1379         if (rr == NULL)
1380                 return;
1381
1382         ws = rr->ws;
1383         winfocus = ws->focus;
1384         if (winfocus == NULL)
1385                 winfocus = ws->focus_prev;
1386         if (winfocus) {
1387                 /* use window coordinates */
1388                 x = winfocus->g.x + 1;
1389                 y = winfocus->g.y + 1;
1390         } else {
1391                 /* use region coordinates */
1392                 x = rr->g.x + 1;
1393                 y = rr->g.y + 1 + bar_enabled ? bar_height : 0;
1394         }
1395
1396         unfocus_all();
1397         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1398         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, x, y);
1399
1400         focus_win(winfocus);
1401 }
1402
1403 void
1404 swapwin(struct swm_region *r, union arg *args)
1405 {
1406         struct ws_win           *target, *source;
1407         struct ws_win           *cur_focus;
1408         struct ws_win_list      *wl;
1409
1410
1411         DNPRINTF(SWM_D_WS, "swapwin id %d "
1412             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1413             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1414
1415         cur_focus = r->ws->focus;
1416         if (cur_focus == NULL)
1417                 return;
1418
1419         source = cur_focus;
1420         wl = &source->ws->winlist;
1421
1422         switch (args->id) {
1423         case SWM_ARG_ID_SWAPPREV:
1424                 target = TAILQ_PREV(source, ws_win_list, entry);
1425                 TAILQ_REMOVE(wl, cur_focus, entry);
1426                 if (target == NULL)
1427                         TAILQ_INSERT_TAIL(wl, source, entry);
1428                 else
1429                         TAILQ_INSERT_BEFORE(target, source, entry);
1430                 break;
1431         case SWM_ARG_ID_SWAPNEXT:
1432                 target = TAILQ_NEXT(source, entry);
1433                 TAILQ_REMOVE(wl, source, entry);
1434                 if (target == NULL)
1435                         TAILQ_INSERT_HEAD(wl, source, entry);
1436                 else
1437                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1438                 break;
1439         case SWM_ARG_ID_SWAPMAIN:
1440                 target = TAILQ_FIRST(wl);
1441                 if (target == source) {
1442                         if (source->ws->focus_prev != NULL &&
1443                             source->ws->focus_prev != target)
1444
1445                                 source = source->ws->focus_prev;
1446                         else
1447                                 return;
1448                 }
1449                 source->ws->focus_prev = target;
1450                 TAILQ_REMOVE(wl, target, entry);
1451                 TAILQ_INSERT_BEFORE(source, target, entry);
1452                 TAILQ_REMOVE(wl, source, entry);
1453                 TAILQ_INSERT_HEAD(wl, source, entry);
1454                 break;
1455         default:
1456                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1457                 return;
1458         }
1459
1460         ignore_enter = 1;
1461         stack();
1462 }
1463
1464 void
1465 focus(struct swm_region *r, union arg *args)
1466 {
1467         struct ws_win           *winfocus, *winlostfocus;
1468         struct ws_win_list      *wl;
1469         struct ws_win           *cur_focus;
1470
1471         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1472
1473         cur_focus = r->ws->focus;
1474         if (cur_focus == NULL)
1475                 return;
1476
1477         wl = &cur_focus->ws->winlist;
1478
1479         winlostfocus = cur_focus;
1480
1481         switch (args->id) {
1482         case SWM_ARG_ID_FOCUSPREV:
1483                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1484                 if (winfocus == NULL)
1485                         winfocus = TAILQ_LAST(wl, ws_win_list);
1486                 break;
1487
1488         case SWM_ARG_ID_FOCUSNEXT:
1489                 winfocus = TAILQ_NEXT(cur_focus, entry);
1490                 if (winfocus == NULL)
1491                         winfocus = TAILQ_FIRST(wl);
1492                 break;
1493
1494         case SWM_ARG_ID_FOCUSMAIN:
1495                 winfocus = TAILQ_FIRST(wl);
1496                 if (winfocus == cur_focus)
1497                         winfocus = cur_focus->ws->focus_prev;
1498                 if (winfocus == NULL)
1499                         return;
1500                 break;
1501
1502         default:
1503                 return;
1504         }
1505
1506         if (winfocus == winlostfocus || winfocus == NULL)
1507                 return;
1508
1509         focus_win(winfocus);
1510 }
1511
1512 void
1513 cycle_layout(struct swm_region *r, union arg *args)
1514 {
1515         struct workspace        *ws = r->ws;
1516         struct ws_win           *winfocus, *parent = NULL;
1517
1518         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1519
1520         winfocus = ws->focus;
1521
1522         ws->cur_layout++;
1523         if (ws->cur_layout->l_stack == NULL)
1524                 ws->cur_layout = &layouts[0];
1525
1526         ignore_enter = 1;
1527         stack();
1528         /* make sure we see the parent window */
1529         if (winfocus) {
1530                 if (winfocus->transient)
1531                         parent = find_window(winfocus->transient);
1532                 if (parent)
1533                         focus_win(parent);
1534                 focus_win(winfocus);
1535         }
1536         ignore_enter = 0;
1537 }
1538
1539 void
1540 stack_config(struct swm_region *r, union arg *args)
1541 {
1542         struct workspace        *ws = r->ws;
1543
1544         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1545             args->id, ws->idx);
1546
1547         if (ws->cur_layout->l_config != NULL)
1548                 ws->cur_layout->l_config(ws, args->id);
1549
1550         if (args->id != SWM_ARG_ID_STACKINIT);
1551                 stack();
1552 }
1553
1554 void
1555 stack(void) {
1556         struct swm_geometry     g;
1557         struct swm_region       *r;
1558         int                     i, j;
1559
1560         DNPRINTF(SWM_D_STACK, "stack\n");
1561
1562         for (i = 0; i < ScreenCount(display); i++) {
1563                 j = 0;
1564                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1565                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1566                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1567
1568                         /* start with screen geometry, adjust for bar */
1569                         g = r->g;
1570                         g.w -= 2;
1571                         g.h -= 2;
1572                         if (bar_enabled) {
1573                                 g.y += bar_height;
1574                                 g.h -= bar_height;
1575                         }
1576
1577                         r->ws->restack = 0;
1578                         r->ws->cur_layout->l_stack(r->ws, &g);
1579                 }
1580         }
1581         if (font_adjusted)
1582                 font_adjusted--;
1583 }
1584
1585 void
1586 stack_floater(struct ws_win *win, struct swm_region *r)
1587 {
1588         unsigned int            mask;
1589         XWindowChanges          wc;
1590
1591         if (win == NULL)
1592                 return;
1593
1594         bzero(&wc, sizeof wc);
1595         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1596         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1597             (win->g.h == HEIGHT(r)))
1598                 wc.border_width = 0;
1599         else
1600                 wc.border_width = 1;
1601         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1602                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1603                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1604         }
1605         wc.width = win->g.w;
1606         wc.height = win->g.h;
1607         if (win->manual) {
1608                 wc.x = win->g.x;
1609                 wc.y = win->g.y;
1610         } else {
1611                 wc.x = (WIDTH(r) - win->g.w) / 2;
1612                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1613         }
1614
1615         /* adjust for region */
1616         wc.x += r->g.x;
1617         wc.y += r->g.y;
1618
1619         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1620             win->id, wc.x, wc.y, wc.width, wc.height);
1621
1622         XConfigureWindow(display, win->id, mask, &wc);
1623 }
1624
1625 /*
1626  * Send keystrokes to terminal to decrease/increase the font size as the
1627  * window size changes.
1628  */
1629 void
1630 adjust_font(struct ws_win *win)
1631 {
1632         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1633             win->floating || win->transient)
1634                 return;
1635
1636         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1637             win->g.w / win->sh.width_inc < term_width &&
1638             win->font_steps < SWM_MAX_FONT_STEPS) {
1639                 win->font_size_boundary[win->font_steps] =
1640                     (win->sh.width_inc * term_width) + win->sh.base_width;
1641                 win->font_steps++;
1642                 font_adjusted++;
1643                 win->last_inc = win->sh.width_inc;
1644                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1645         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1646             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1647                 win->font_steps--;
1648                 font_adjusted++;
1649                 win->last_inc = win->sh.width_inc;
1650                 fake_keypress(win, XK_KP_Add, ShiftMask);
1651         }
1652 }
1653
1654 #define SWAPXY(g)       do {                            \
1655         int tmp;                                        \
1656         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1657         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1658 } while (0)
1659 void
1660 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1661 {
1662         XWindowChanges          wc;
1663         struct swm_geometry     win_g, r_g = *g;
1664         struct ws_win           *win;
1665         int                     i, j, s, stacks;
1666         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1667         int                     hrh, extra = 0, h_slice, last_h = 0;
1668         int                     split, colno, winno, mwin, msize, mscale;
1669         int                     remain, missing, v_slice;
1670         unsigned int            mask;
1671
1672         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1673             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1674
1675         winno = count_win(ws, 0);
1676         if (winno == 0 && count_win(ws, 1) == 0)
1677                 return;
1678
1679         TAILQ_FOREACH(win, &ws->winlist, entry)
1680                 if (win->transient == 0 && win->floating == 0)
1681                         break;
1682
1683         if (win == NULL)
1684                 goto notiles;
1685
1686         if (rot) {
1687                 w_inc = win->sh.width_inc;
1688                 w_base = win->sh.base_width;
1689                 mwin = ws->l_state.horizontal_mwin;
1690                 mscale = ws->l_state.horizontal_msize;
1691                 stacks = ws->l_state.horizontal_stacks;
1692                 SWAPXY(&r_g);
1693         } else {
1694                 w_inc = win->sh.height_inc;
1695                 w_base = win->sh.base_height;
1696                 mwin = ws->l_state.vertical_mwin;
1697                 mscale = ws->l_state.vertical_msize;
1698                 stacks = ws->l_state.vertical_stacks;
1699         }
1700         win_g = r_g;
1701
1702         if (stacks > winno - mwin)
1703                 stacks = winno - mwin;
1704         if (stacks < 1)
1705                 stacks = 1;
1706
1707         h_slice = r_g.h / SWM_H_SLICE;
1708         if (mwin && winno > mwin) {
1709                 v_slice = r_g.w / SWM_V_SLICE;
1710
1711                 split = mwin;
1712                 colno = split;
1713                 win_g.w = v_slice * mscale;
1714
1715                 if (w_inc > 1 && w_inc < v_slice) {
1716                         /* adjust for window's requested size increment */
1717                         remain = (win_g.w - w_base) % w_inc;
1718                         missing = w_inc - remain;
1719                         win_g.w -= remain;
1720                         extra += remain;
1721                 }
1722
1723                 msize = win_g.w;
1724                 if (flip)
1725                         win_g.x += r_g.w - msize;
1726         } else {
1727                 msize = -2;
1728                 colno = split = winno / stacks;
1729                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1730         }
1731         hrh = r_g.h / colno;
1732         extra = r_g.h - (colno * hrh);
1733         win_g.h = hrh - 2;
1734
1735         /*  stack all the tiled windows */
1736         i = j = 0, s = stacks;
1737         TAILQ_FOREACH(win, &ws->winlist, entry) {
1738                 if (win->transient != 0 || win->floating != 0)
1739                         continue;
1740
1741                 if (split && i == split) {
1742                         colno = (winno - mwin) / stacks;
1743                         if (s <= (winno - mwin) % stacks)
1744                                 colno++;
1745                         split = split + colno;
1746                         hrh = (r_g.h / colno);
1747                         extra = r_g.h - (colno * hrh);
1748                         if (flip)
1749                                 win_g.x = r_g.x;
1750                         else
1751                                 win_g.x += win_g.w + 2;
1752                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1753                         if (s == 1)
1754                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1755                                     stacks;
1756                         s--;
1757                         j = 0;
1758                 }
1759                 win_g.h = hrh - 2;
1760                 if (rot) {
1761                         h_inc = win->sh.width_inc;
1762                         h_base = win->sh.base_width;
1763                 } else {
1764                         h_inc = win->sh.height_inc;
1765                         h_base = win->sh.base_height;
1766                 }
1767                 if (j == colno - 1) {
1768                         win_g.h = hrh + extra;
1769                 } else if (h_inc > 1 && h_inc < h_slice) {
1770                         /* adjust for window's requested size increment */
1771                         remain = (win_g.h - h_base) % h_inc;
1772                         missing = h_inc - remain;
1773
1774                         if (missing <= extra || j == 0) {
1775                                 extra -= missing;
1776                                 win_g.h += missing;
1777                         } else {
1778                                 win_g.h -= remain;
1779                                 extra += remain;
1780                         }
1781                 }
1782
1783                 if (j == 0)
1784                         win_g.y = r_g.y;
1785                 else
1786                         win_g.y += last_h + 2;
1787
1788                 bzero(&wc, sizeof wc);
1789                 wc.border_width = 1;
1790                 if (rot) {
1791                         win->g.x = wc.x = win_g.y;
1792                         win->g.y = wc.y = win_g.x;
1793                         win->g.w = wc.width = win_g.h;
1794                         win->g.h = wc.height = win_g.w;
1795                 } else {
1796                         win->g.x = wc.x = win_g.x;
1797                         win->g.y = wc.y = win_g.y;
1798                         win->g.w = wc.width = win_g.w;
1799                         win->g.h = wc.height = win_g.h;
1800                 }
1801                 adjust_font(win);
1802                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1803                 XConfigureWindow(display, win->id, mask, &wc);
1804                 XMapRaised(display, win->id);
1805
1806                 last_h = win_g.h;
1807                 i++;
1808                 j++;
1809         }
1810
1811  notiles:
1812         /* now, stack all the floaters and transients */
1813         TAILQ_FOREACH(win, &ws->winlist, entry) {
1814                 if (win->transient == 0 && win->floating == 0)
1815                         continue;
1816
1817                 stack_floater(win, ws->r);
1818                 XMapRaised(display, win->id);
1819         }
1820 }
1821
1822 void
1823 vertical_config(struct workspace *ws, int id)
1824 {
1825         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1826
1827         switch (id) {
1828         case SWM_ARG_ID_STACKRESET:
1829         case SWM_ARG_ID_STACKINIT:
1830                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1831                 ws->l_state.vertical_mwin = 1;
1832                 ws->l_state.vertical_stacks = 1;
1833                 break;
1834         case SWM_ARG_ID_MASTERSHRINK:
1835                 if (ws->l_state.vertical_msize > 1)
1836                         ws->l_state.vertical_msize--;
1837                 break;
1838         case SWM_ARG_ID_MASTERGROW:
1839                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1840                         ws->l_state.vertical_msize++;
1841                 break;
1842         case SWM_ARG_ID_MASTERADD:
1843                 ws->l_state.vertical_mwin++;
1844                 break;
1845         case SWM_ARG_ID_MASTERDEL:
1846                 if (ws->l_state.vertical_mwin > 0)
1847                         ws->l_state.vertical_mwin--;
1848                 break;
1849         case SWM_ARG_ID_STACKINC:
1850                 ws->l_state.vertical_stacks++;
1851                 break;
1852         case SWM_ARG_ID_STACKDEC:
1853                 if (ws->l_state.vertical_stacks > 1)
1854                         ws->l_state.vertical_stacks--;
1855                 break;
1856         default:
1857                 return;
1858         }
1859 }
1860
1861 void
1862 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1863 {
1864         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1865
1866         stack_master(ws, g, 0, 0);
1867 }
1868
1869 void
1870 horizontal_config(struct workspace *ws, int id)
1871 {
1872         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1873
1874         switch (id) {
1875         case SWM_ARG_ID_STACKRESET:
1876         case SWM_ARG_ID_STACKINIT:
1877                 ws->l_state.horizontal_mwin = 1;
1878                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1879                 ws->l_state.horizontal_stacks = 1;
1880                 break;
1881         case SWM_ARG_ID_MASTERSHRINK:
1882                 if (ws->l_state.horizontal_msize > 1)
1883                         ws->l_state.horizontal_msize--;
1884                 break;
1885         case SWM_ARG_ID_MASTERGROW:
1886                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1887                         ws->l_state.horizontal_msize++;
1888                 break;
1889         case SWM_ARG_ID_MASTERADD:
1890                 ws->l_state.horizontal_mwin++;
1891                 break;
1892         case SWM_ARG_ID_MASTERDEL:
1893                 if (ws->l_state.horizontal_mwin > 0)
1894                         ws->l_state.horizontal_mwin--;
1895                 break;
1896         case SWM_ARG_ID_STACKINC:
1897                 ws->l_state.horizontal_stacks++;
1898                 break;
1899         case SWM_ARG_ID_STACKDEC:
1900                 if (ws->l_state.horizontal_stacks > 1)
1901                         ws->l_state.horizontal_stacks--;
1902                 break;
1903         default:
1904                 return;
1905         }
1906 }
1907
1908 void
1909 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1910 {
1911         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1912
1913         stack_master(ws, g, 1, 0);
1914 }
1915
1916 /* fullscreen view */
1917 void
1918 max_stack(struct workspace *ws, struct swm_geometry *g)
1919 {
1920         XWindowChanges          wc;
1921         struct swm_geometry     gg = *g;
1922         struct ws_win           *win, *wintrans = NULL;
1923         unsigned int            mask;
1924         int                     winno;
1925
1926         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1927
1928         if (ws == NULL)
1929                 return;
1930
1931         winno = count_win(ws, 0);
1932         if (winno == 0 && count_win(ws, 1) == 0)
1933                 return;
1934
1935         TAILQ_FOREACH(win, &ws->winlist, entry) {
1936                 if (win->transient != 0) {
1937                         wintrans = win;
1938                 } else {
1939                         bzero(&wc, sizeof wc);
1940                         wc.border_width = 1;
1941                         win->g.x = wc.x = gg.x;
1942                         win->g.y = wc.y = gg.y;
1943                         win->g.w = wc.width = gg.w;
1944                         win->g.h = wc.height = gg.h;
1945                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1946                         XConfigureWindow(display, win->id, mask, &wc);
1947
1948                         /* unmap only if we don't have multi screen */
1949                         if (win != ws->focus)
1950                                 if (!(ScreenCount(display) > 1 || outputs > 1))
1951                                         unmap_window(win);
1952                 }
1953         }
1954
1955         /* put the last transient on top */
1956         if (wintrans) {
1957                 stack_floater(wintrans, ws->r);
1958                 focus_win(wintrans); /* override */
1959         }
1960 }
1961
1962 void
1963 send_to_ws(struct swm_region *r, union arg *args)
1964 {
1965         int                     wsid = args->id;
1966         struct ws_win           *win = win, *winfocus = NULL;
1967         struct workspace        *ws, *nws;
1968         Atom                    ws_idx_atom = 0;
1969         unsigned char           ws_idx_str[SWM_PROPLEN];
1970
1971         if (r && r->ws)
1972                 win = r->ws->focus;
1973         else
1974                 return;
1975         if (win == NULL)
1976                 return;
1977
1978         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1979
1980         ws = win->ws;
1981         nws = &win->s->ws[wsid];
1982
1983         /* find a window to focus */
1984         winfocus = TAILQ_PREV(win, ws_win_list, entry);
1985         if (TAILQ_FIRST(&ws->winlist) == win)
1986                 winfocus = TAILQ_NEXT(win, entry);
1987         else {
1988                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
1989                 if (winfocus == NULL)
1990                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
1991         }
1992         /* out of windows in ws so focus on nws instead if we multi screen */
1993         if (winfocus == NULL)
1994                 if (ScreenCount(display) > 1 || outputs > 1)
1995                         winfocus = win;
1996
1997         unmap_window(win);
1998         TAILQ_REMOVE(&ws->winlist, win, entry);
1999         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
2000         win->ws = nws;
2001
2002         /* Try to update the window's workspace property */
2003         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
2004         if (ws_idx_atom &&
2005             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
2006                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
2007                     ws_idx_str);
2008                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
2009                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
2010         }
2011
2012         if (count_win(nws, 1) == 1)
2013                 nws->focus = win;
2014         ws->restack = 1;
2015         nws->restack = 1;
2016
2017         stack();
2018         if (winfocus)
2019                 focus_win(winfocus);
2020 }
2021
2022 void
2023 wkill(struct swm_region *r, union arg *args)
2024 {
2025         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
2026
2027         if(r->ws->focus == NULL)
2028                 return;
2029
2030         if (args->id == SWM_ARG_ID_KILLWINDOW)
2031                 XKillClient(display, r->ws->focus->id);
2032         else
2033                 if (r->ws->focus->can_delete)
2034                         client_msg(r->ws->focus, adelete);
2035 }
2036
2037 void
2038 floating_toggle(struct swm_region *r, union arg *args)
2039 {
2040         struct ws_win   *win = r->ws->focus;
2041
2042         if (win == NULL)
2043                 return;
2044
2045         win->floating = !win->floating;
2046         win->manual = 0;
2047         stack();
2048         focus_win(win);
2049 }
2050
2051 void
2052 resize_window(struct ws_win *win, int center)
2053 {
2054         unsigned int            mask;
2055         XWindowChanges          wc;
2056         struct swm_region       *r;
2057
2058         r = root_to_region(win->wa.root);
2059         bzero(&wc, sizeof wc);
2060         mask = CWBorderWidth | CWWidth | CWHeight;
2061         wc.border_width = 1;
2062         wc.width = win->g.w;
2063         wc.height = win->g.h;
2064         if (center == SWM_ARG_ID_CENTER) {
2065                 wc.x = (WIDTH(r) - win->g.w) / 2;
2066                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2067                 mask |= CWX | CWY;
2068         }
2069
2070         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2071             win->id, wc.x, wc.y, wc.width, wc.height);
2072
2073         XConfigureWindow(display, win->id, mask, &wc);
2074         config_win(win);
2075 }
2076
2077 void
2078 resize(struct ws_win *win, union arg *args)
2079 {
2080         XEvent                  ev;
2081         Time                    time = 0;
2082
2083         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2084             win->id, win->floating, win->transient);
2085
2086         if (!(win->transient != 0 || win->floating != 0))
2087                 return;
2088
2089         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2090             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2091                 return;
2092         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2093         do {
2094                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2095                     SubstructureRedirectMask, &ev);
2096                 switch(ev.type) {
2097                 case ConfigureRequest:
2098                 case Expose:
2099                 case MapRequest:
2100                         handler[ev.type](&ev);
2101                         break;
2102                 case MotionNotify:
2103                         if (ev.xmotion.x <= 1)
2104                                 ev.xmotion.x = 1;
2105                         if (ev.xmotion.y <= 1)
2106                                 ev.xmotion.y = 1;
2107                         win->g.w = ev.xmotion.x;
2108                         win->g.h = ev.xmotion.y;
2109
2110                         /* not free, don't sync more than 60 times / second */
2111                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2112                                 time = ev.xmotion.time;
2113                                 XSync(display, False);
2114                                 resize_window(win, args->id);
2115                         }
2116                         break;
2117                 }
2118         } while (ev.type != ButtonRelease);
2119         if (time) {
2120                 XSync(display, False);
2121                 resize_window(win, args->id);
2122         }
2123         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2124             win->g.h - 1);
2125         XUngrabPointer(display, CurrentTime);
2126
2127         /* drain events */
2128         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2129 }
2130
2131 void
2132 move_window(struct ws_win *win)
2133 {
2134         unsigned int            mask;
2135         XWindowChanges          wc;
2136         struct swm_region       *r;
2137
2138         r = root_to_region(win->wa.root);
2139         bzero(&wc, sizeof wc);
2140         mask = CWX | CWY;
2141         wc.x = win->g.x;
2142         wc.y = win->g.y;
2143
2144         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2145             win->id, wc.x, wc.y, wc.width, wc.height);
2146
2147         XConfigureWindow(display, win->id, mask, &wc);
2148         config_win(win);
2149 }
2150
2151 void
2152 move(struct ws_win *win, union arg *args)
2153 {
2154         XEvent                  ev;
2155         Time                    time = 0;
2156         int                     restack = 0;
2157
2158         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2159             win->id, win->floating, win->transient);
2160
2161         if (win->floating == 0) {
2162                 win->floating = 1;
2163                 win->manual = 1;
2164                 restack = 1;
2165         }
2166
2167         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2168             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2169                 return;
2170         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2171         do {
2172                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2173                     SubstructureRedirectMask, &ev);
2174                 switch(ev.type) {
2175                 case ConfigureRequest:
2176                 case Expose:
2177                 case MapRequest:
2178                         handler[ev.type](&ev);
2179                         break;
2180                 case MotionNotify:
2181                         win->g.x = ev.xmotion.x_root;
2182                         win->g.y = ev.xmotion.y_root;
2183
2184                         /* not free, don't sync more than 60 times / second */
2185                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2186                                 time = ev.xmotion.time;
2187                                 XSync(display, False);
2188                                 move_window(win);
2189                         }
2190                         break;
2191                 }
2192         } while (ev.type != ButtonRelease);
2193         if (time) {
2194                 XSync(display, False);
2195                 move_window(win);
2196         }
2197         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2198         XUngrabPointer(display, CurrentTime);
2199         if (restack)
2200                 stack();
2201
2202         /* drain events */
2203         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2204 }
2205
2206 /* key definitions */
2207 void
2208 dummykeyfunc(struct swm_region *r, union arg *args)
2209 {
2210 };
2211
2212 void
2213 legacyfunc(struct swm_region *r, union arg *args)
2214 {
2215 };
2216
2217 struct keyfunc {
2218         char                    name[SWM_FUNCNAME_LEN];
2219         void                    (*func)(struct swm_region *r, union arg *);
2220         union arg               args;
2221 } keyfuncs[kf_invalid + 1] = {
2222         /* name                 function        argument */
2223         { "cycle_layout",       cycle_layout,   {0} },
2224         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2225         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2226         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2227         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2228         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2229         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2230         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2231         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2232         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2233         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2234         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2235         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2236         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2237         { "spawn_menu",         legacyfunc,     {0} },
2238         { "quit",               quit,           {0} },
2239         { "restart",            restart,        {0} },
2240         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2241         { "ws_1",               switchws,       {.id = 0} },
2242         { "ws_2",               switchws,       {.id = 1} },
2243         { "ws_3",               switchws,       {.id = 2} },
2244         { "ws_4",               switchws,       {.id = 3} },
2245         { "ws_5",               switchws,       {.id = 4} },
2246         { "ws_6",               switchws,       {.id = 5} },
2247         { "ws_7",               switchws,       {.id = 6} },
2248         { "ws_8",               switchws,       {.id = 7} },
2249         { "ws_9",               switchws,       {.id = 8} },
2250         { "ws_10",              switchws,       {.id = 9} },
2251         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2252         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2253         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2254         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2255         { "mvws_1",             send_to_ws,     {.id = 0} },
2256         { "mvws_2",             send_to_ws,     {.id = 1} },
2257         { "mvws_3",             send_to_ws,     {.id = 2} },
2258         { "mvws_4",             send_to_ws,     {.id = 3} },
2259         { "mvws_5",             send_to_ws,     {.id = 4} },
2260         { "mvws_6",             send_to_ws,     {.id = 5} },
2261         { "mvws_7",             send_to_ws,     {.id = 6} },
2262         { "mvws_8",             send_to_ws,     {.id = 7} },
2263         { "mvws_9",             send_to_ws,     {.id = 8} },
2264         { "mvws_10",            send_to_ws,     {.id = 9} },
2265         { "bar_toggle",         bar_toggle,     {0} },
2266         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2267         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2268         { "screenshot_all",     legacyfunc,     {0} },
2269         { "screenshot_wind",    legacyfunc,     {0} },
2270         { "float_toggle",       floating_toggle,{0} },
2271         { "version",            version,        {0} },
2272         { "spawn_lock",         legacyfunc,     {0} },
2273         { "spawn_initscr",      legacyfunc,     {0} },
2274         { "spawn_custom",       dummykeyfunc,   {0} },
2275         { "invalid key func",   NULL,           {0} },
2276 };
2277 struct key {
2278         unsigned int            mod;
2279         KeySym                  keysym;
2280         enum keyfuncid          funcid;
2281         char                    *spawn_name;
2282 };
2283 int                             keys_size = 0, keys_length = 0;
2284 struct key                      *keys = NULL;
2285
2286 /* mouse */
2287 enum { client_click, root_click };
2288 struct button {
2289         unsigned int            action;
2290         unsigned int            mask;
2291         unsigned int            button;
2292         void                    (*func)(struct ws_win *, union arg *);
2293         union arg               args;
2294 } buttons[] = {
2295           /* action     key             mouse button    func    args */
2296         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2297         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2298         { client_click, MODKEY,         Button1,        move,   {0} },
2299 };
2300
2301 void
2302 update_modkey(unsigned int mod)
2303 {
2304         int                     i;
2305
2306         mod_key = mod;
2307         for (i = 0; i < keys_length; i++)
2308                 if (keys[i].mod & ShiftMask)
2309                         keys[i].mod = mod | ShiftMask;
2310                 else
2311                         keys[i].mod = mod;
2312
2313         for (i = 0; i < LENGTH(buttons); i++)
2314                 if (buttons[i].mask & ShiftMask)
2315                         buttons[i].mask = mod | ShiftMask;
2316                 else
2317                         buttons[i].mask = mod;
2318 }
2319
2320 /* spawn */
2321 struct spawn_prog {
2322         char                    *name;
2323         int                     argc;
2324         char                    **argv;
2325 };
2326
2327 int                             spawns_size = 0, spawns_length = 0;
2328 struct spawn_prog               *spawns = NULL;
2329
2330 void
2331 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2332 {
2333         union arg               a;
2334         struct spawn_prog       *prog = NULL;
2335         int                     i;
2336         char                    *ap, **real_args;
2337
2338         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2339
2340         /* find program */
2341         for (i = 0; i < spawns_length; i++) {
2342                 if (!strcasecmp(spawn_name, spawns[i].name))
2343                         prog = &spawns[i];
2344         }
2345         if (prog == NULL) {
2346                 fprintf(stderr, "spawn_custom: program %s not found\n",
2347                     spawn_name);
2348                 return;
2349         }
2350
2351         /* make room for expanded args */
2352         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2353                 err(1, "spawn_custom: calloc real_args");
2354
2355         /* expand spawn_args into real_args */
2356         for (i = 0; i < prog->argc; i++) {
2357                 ap = prog->argv[i];
2358                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2359                 if (!strcasecmp(ap, "$bar_border")) {
2360                         if ((real_args[i] =
2361                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2362                             == NULL)
2363                                 err(1,  "spawn_custom border color");
2364                 } else if (!strcasecmp(ap, "$bar_color")) {
2365                         if ((real_args[i] =
2366                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2367                             == NULL)
2368                                 err(1, "spawn_custom bar color");
2369                 } else if (!strcasecmp(ap, "$bar_font")) {
2370                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2371                             == NULL)
2372                                 err(1, "spawn_custom bar fonts");
2373                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2374                         if ((real_args[i] =
2375                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2376                             == NULL)
2377                                 err(1, "spawn_custom color font");
2378                 } else if (!strcasecmp(ap, "$color_focus")) {
2379                         if ((real_args[i] =
2380                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2381                             == NULL)
2382                                 err(1, "spawn_custom color focus");
2383                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2384                         if ((real_args[i] =
2385                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2386                             == NULL)
2387                                 err(1, "spawn_custom color unfocus");
2388                 } else {
2389                         /* no match --> copy as is */
2390                         if ((real_args[i] = strdup(ap)) == NULL)
2391                                 err(1, "spawn_custom strdup(ap)");
2392                 }
2393                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2394                     real_args[i]);
2395         }
2396
2397 #ifdef SWM_DEBUG
2398         if ((swm_debug & SWM_D_SPAWN) != 0) {
2399                 fprintf(stderr, "spawn_custom: result = ");
2400                 for (i = 0; i < prog->argc; i++)
2401                         fprintf(stderr, "\"%s\" ", real_args[i]);
2402                 fprintf(stderr, "\n");
2403         }
2404 #endif
2405
2406         a.argv = real_args;
2407         spawn(r, &a);
2408         for (i = 0; i < prog->argc; i++)
2409                 free(real_args[i]);
2410         free(real_args);
2411 }
2412
2413 void
2414 setspawn(struct spawn_prog *prog)
2415 {
2416         int                     i, j;
2417
2418         if (prog == NULL || prog->name == NULL)
2419                 return;
2420
2421         /* find existing */
2422         for (i = 0; i < spawns_length; i++) {
2423                 if (!strcmp(spawns[i].name, prog->name)) {
2424                         /* found */
2425                         if (prog->argv == NULL) {
2426                                 /* delete */
2427                                 DNPRINTF(SWM_D_SPAWN,
2428                                     "setspawn: delete #%d %s\n",
2429                                     i, spawns[i].name);
2430                                 free(spawns[i].name);
2431                                 for (j = 0; j < spawns[i].argc; j++)
2432                                         free(spawns[i].argv[j]);
2433                                 free(spawns[i].argv);
2434                                 j = spawns_length - 1;
2435                                 if (i < j)
2436                                         spawns[i] = spawns[j];
2437                                 spawns_length--;
2438                                 free(prog->name);
2439                         } else {
2440                                 /* replace */
2441                                 DNPRINTF(SWM_D_SPAWN,
2442                                     "setspawn: replace #%d %s\n",
2443                                     i, spawns[i].name);
2444                                 free(spawns[i].name);
2445                                 for (j = 0; j < spawns[i].argc; j++)
2446                                         free(spawns[i].argv[j]);
2447                                 free(spawns[i].argv);
2448                                 spawns[i] = *prog;
2449                         }
2450                         /* found case handled */
2451                         free(prog);
2452                         return;
2453                 }
2454         }
2455
2456         if (prog->argv == NULL) {
2457                 fprintf(stderr,
2458                     "error: setspawn: cannot find program %s", prog->name);
2459                 free(prog);
2460                 return;
2461         }
2462
2463         /* not found: add */
2464         if (spawns_size == 0 || spawns == NULL) {
2465                 spawns_size = 4;
2466                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2467                 spawns = malloc((size_t)spawns_size *
2468                     sizeof(struct spawn_prog));
2469                 if (spawns == NULL) {
2470                         fprintf(stderr, "setspawn: malloc failed\n");
2471                         perror(" failed");
2472                         quit(NULL, NULL);
2473                 }
2474         } else if (spawns_length == spawns_size) {
2475                 spawns_size *= 2;
2476                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2477                 spawns = realloc(spawns, (size_t)spawns_size *
2478                     sizeof(struct spawn_prog));
2479                 if (spawns == NULL) {
2480                         fprintf(stderr, "setspawn: realloc failed\n");
2481                         perror(" failed");
2482                         quit(NULL, NULL);
2483                 }
2484         }
2485
2486         if (spawns_length < spawns_size) {
2487                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2488                     spawns_length, prog->name);
2489                 i = spawns_length++;
2490                 spawns[i] = *prog;
2491         } else {
2492                 fprintf(stderr, "spawns array problem?\n");
2493                 if (spawns == NULL) {
2494                         fprintf(stderr, "spawns array is NULL!\n");
2495                         quit(NULL, NULL);
2496                 }
2497         }
2498         free(prog);
2499 }
2500
2501 int
2502 setconfspawn(char *selector, char *value, int flags)
2503 {
2504         struct spawn_prog       *prog;
2505         char                    *vp, *cp, *word;
2506
2507         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2508         if ((prog = calloc(1, sizeof *prog)) == NULL)
2509                 err(1, "setconfspawn: calloc prog");
2510         prog->name = strdup(selector);
2511         if (prog->name == NULL)
2512                 err(1, "setconfspawn prog->name");
2513         if ((cp = vp = strdup(value)) == NULL)
2514                 err(1, "setconfspawn: strdup(value) ");
2515         while ((word = strsep(&cp, " \t")) != NULL) {
2516                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2517                 if (cp)
2518                         cp += (long)strspn(cp, " \t");
2519                 if (strlen(word) > 0) {
2520                         prog->argc++;
2521                         prog->argv = realloc(prog->argv,
2522                             prog->argc * sizeof(char *));
2523                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2524                                 err(1, "setconfspawn: strdup");
2525                 }
2526         }
2527         free(vp);
2528
2529         setspawn(prog);
2530
2531         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2532         return (0);
2533 }
2534
2535 void
2536 setup_spawn(void)
2537 {
2538         setconfspawn("term",            "xterm",                0);
2539         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2540         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2541         setconfspawn("lock",            "xlock",                0);
2542         setconfspawn("initscr",         "initscreen.sh",        0);
2543         setconfspawn("menu",            "dmenu_run"
2544                                         " -fn $bar_font"
2545                                         " -nb $bar_color"
2546                                         " -nf $bar_font_color"
2547                                         " -sb $bar_border"
2548                                         " -sf $bar_color",      0);
2549 }
2550
2551 /* key bindings */
2552 #define SWM_MODNAME_SIZE        32
2553 #define SWM_KEY_WS              "\n+ \t"
2554 int
2555 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2556 {
2557         char                    *cp, *name;
2558         KeySym                  uks;
2559         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2560         if (mod == NULL || ks == NULL) {
2561                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2562                 return (1);
2563         }
2564         if (keystr == NULL || strlen(keystr) == 0) {
2565                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2566                 return (1);
2567         }
2568         cp = keystr;
2569         *ks = NoSymbol;
2570         *mod = 0;
2571         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2572                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2573                 if (cp)
2574                         cp += (long)strspn(cp, SWM_KEY_WS);
2575                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2576                         *mod |= currmod;
2577                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2578                         *mod |= Mod1Mask;
2579                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2580                         *mod += Mod2Mask;
2581                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2582                         *mod |= Mod3Mask;
2583                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2584                         *mod |= Mod4Mask;
2585                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2586                         *mod |= ShiftMask;
2587                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2588                         *mod |= ControlMask;
2589                 else {
2590                         *ks = XStringToKeysym(name);
2591                         XConvertCase(*ks, ks, &uks);
2592                         if (ks == NoSymbol) {
2593                                 DNPRINTF(SWM_D_KEY,
2594                                     "parsekeys: invalid key %s\n",
2595                                     name);
2596                                 return (1);
2597                         }
2598                 }
2599         }
2600         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2601         return (0);
2602 }
2603 char *
2604 strdupsafe(char *str)
2605 {
2606         if (str == NULL)
2607                 return (NULL);
2608         else
2609                 return (strdup(str));
2610 }
2611 void
2612 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2613 {
2614         int                     i, j;
2615         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2616             keyfuncs[kfid].name, spawn_name);
2617         /* find existing */
2618         for (i = 0; i < keys_length; i++) {
2619                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2620                         if (kfid == kf_invalid) {
2621                                 /* found: delete */
2622                                 DNPRINTF(SWM_D_KEY,
2623                                     "setkeybinding: delete #%d %s\n",
2624                                     i, keyfuncs[keys[i].funcid].name);
2625                                 free(keys[i].spawn_name);
2626                                 j = keys_length - 1;
2627                                 if (i < j)
2628                                         keys[i] = keys[j];
2629                                 keys_length--;
2630                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2631                                 return;
2632                         } else {
2633                                 /* found: replace */
2634                                 DNPRINTF(SWM_D_KEY,
2635                                     "setkeybinding: replace #%d %s %s\n",
2636                                     i, keyfuncs[keys[i].funcid].name,
2637                                     spawn_name);
2638                                 free(keys[i].spawn_name);
2639                                 keys[i].mod = mod;
2640                                 keys[i].keysym = ks;
2641                                 keys[i].funcid = kfid;
2642                                 keys[i].spawn_name = strdupsafe(spawn_name);
2643                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2644                                 return;
2645                         }
2646                 }
2647         }
2648         if (kfid == kf_invalid) {
2649                 fprintf(stderr,
2650                     "error: setkeybinding: cannot find mod/key combination");
2651                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2652                 return;
2653         }
2654         /* not found: add */
2655         if (keys_size == 0 || keys == NULL) {
2656                 keys_size = 4;
2657                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2658                 keys = malloc((size_t)keys_size * sizeof(struct key));
2659                 if (!keys) {
2660                         fprintf(stderr, "malloc failed\n");
2661                         perror(" failed");
2662                         quit(NULL, NULL);
2663                 }
2664         } else if (keys_length == keys_size) {
2665                 keys_size *= 2;
2666                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2667                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2668                 if (!keys) {
2669                         fprintf(stderr, "realloc failed\n");
2670                         perror(" failed");
2671                         quit(NULL, NULL);
2672                 }
2673         }
2674         if (keys_length < keys_size) {
2675                 j = keys_length++;
2676                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2677                     j, keyfuncs[kfid].name, spawn_name);
2678                 keys[j].mod = mod;
2679                 keys[j].keysym = ks;
2680                 keys[j].funcid = kfid;
2681                 keys[j].spawn_name = strdupsafe(spawn_name);
2682         } else {
2683                 fprintf(stderr, "keys array problem?\n");
2684                 if (!keys) {
2685                         fprintf(stderr, "keys array problem\n");
2686                         quit(NULL, NULL);
2687                 }
2688         }
2689         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2690 }
2691 int
2692 setconfbinding(char *selector, char *value, int flags)
2693 {
2694         enum keyfuncid          kfid;
2695         unsigned int            mod;
2696         KeySym                  ks;
2697         int                     i;
2698         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2699         if (selector == NULL) {
2700                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2701                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2702                         kfid = kf_invalid;
2703                         setkeybinding(mod, ks, kfid, NULL);
2704                         return (0);
2705                 } else
2706                         return (1);
2707         }
2708         /* search by key function name */
2709         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2710                 if (strncasecmp(selector, keyfuncs[kfid].name,
2711                     SWM_FUNCNAME_LEN) == 0) {
2712                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2713                             selector);
2714                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2715                                 setkeybinding(mod, ks, kfid, NULL);
2716                                 return (0);
2717                         } else
2718                                 return (1);
2719                 }
2720         }
2721         /* search by custom spawn name */
2722         for (i = 0; i < spawns_length; i++) {
2723                 if (strcasecmp(selector, spawns[i].name) == 0) {
2724                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2725                             selector);
2726                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2727                                 setkeybinding(mod, ks, kf_spawn_custom,
2728                                     spawns[i].name);
2729                                 return (0);
2730                         } else
2731                                 return (1);
2732                 }
2733         }
2734         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2735         return (1);
2736 }
2737 void
2738 setup_keys(void)
2739 {
2740         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2741         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2742         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2743         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2744         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2745         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2746         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2747         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2748         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2749         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2750         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2751         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2752         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2753         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2754         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2755         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2756         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2757         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2758         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2759         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2760         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2761         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2762         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2763         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2764         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2765         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2766         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2767         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2768         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2769         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2770         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2771         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2772         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2773         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2774         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2775         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2776         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2777         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2778         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2779         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2780         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2781         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2782         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2783         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2784         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2785         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2786         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2787         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2788         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2789         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2790         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2791         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2792         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2793 }
2794 void
2795 updatenumlockmask(void)
2796 {
2797         unsigned int            i, j;
2798         XModifierKeymap         *modmap;
2799
2800         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2801         numlockmask = 0;
2802         modmap = XGetModifierMapping(display);
2803         for (i = 0; i < 8; i++)
2804                 for (j = 0; j < modmap->max_keypermod; j++)
2805                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2806                           == XKeysymToKeycode(display, XK_Num_Lock))
2807                                 numlockmask = (1 << i);
2808
2809         XFreeModifiermap(modmap);
2810 }
2811
2812 void
2813 grabkeys(void)
2814 {
2815         unsigned int            i, j, k;
2816         KeyCode                 code;
2817         unsigned int            modifiers[] =
2818             { 0, LockMask, numlockmask, numlockmask | LockMask };
2819
2820         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2821         updatenumlockmask();
2822
2823         for (k = 0; k < ScreenCount(display); k++) {
2824                 if (TAILQ_EMPTY(&screens[k].rl))
2825                         continue;
2826                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2827                 for (i = 0; i < keys_length; i++) {
2828                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2829                                 for (j = 0; j < LENGTH(modifiers); j++)
2830                                         XGrabKey(display, code,
2831                                             keys[i].mod | modifiers[j],
2832                                             screens[k].root, True,
2833                                             GrabModeAsync, GrabModeAsync);
2834                 }
2835         }
2836 }
2837
2838 void
2839 grabbuttons(struct ws_win *win, int focused)
2840 {
2841         unsigned int            i, j;
2842         unsigned int            modifiers[] =
2843             { 0, LockMask, numlockmask, numlockmask|LockMask };
2844
2845         updatenumlockmask();
2846         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2847         if(focused) {
2848                 for (i = 0; i < LENGTH(buttons); i++)
2849                         if (buttons[i].action == client_click)
2850                                 for (j = 0; j < LENGTH(modifiers); j++)
2851                                         XGrabButton(display, buttons[i].button,
2852                                             buttons[i].mask | modifiers[j],
2853                                             win->id, False, BUTTONMASK,
2854                                             GrabModeAsync, GrabModeSync, None,
2855                                             None);
2856         } else
2857                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2858                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2859 }
2860
2861 const char *quirkname[] = {
2862         "NONE",         /* config string for "no value" */
2863         "FLOAT",
2864         "TRANSSZ",
2865         "ANYWHERE",
2866         "XTERM_FONTADJ",
2867         "FULLSCREEN",
2868 };
2869
2870 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2871 #define SWM_Q_WS                "\n|+ \t"
2872 int
2873 parsequirks(char *qstr, unsigned long *quirk)
2874 {
2875         char                    *cp, *name;
2876         int                     i;
2877
2878         if (quirk == NULL)
2879                 return (1);
2880
2881         cp = qstr;
2882         *quirk = 0;
2883         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2884                 if (cp)
2885                         cp += (long)strspn(cp, SWM_Q_WS);
2886                 for (i = 0; i < LENGTH(quirkname); i++) {
2887                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2888                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2889                                 if (i == 0) {
2890                                         *quirk = 0;
2891                                         return (0);
2892                                 }
2893                                 *quirk |= 1 << (i-1);
2894                                 break;
2895                         }
2896                 }
2897                 if (i >= LENGTH(quirkname)) {
2898                         DNPRINTF(SWM_D_QUIRK,
2899                             "parsequirks: invalid quirk [%s]\n", name);
2900                         return (1);
2901                 }
2902         }
2903         return (0);
2904 }
2905 void
2906 setquirk(const char *class, const char *name, const int quirk)
2907 {
2908         int                     i, j;
2909
2910         /* find existing */
2911         for (i = 0; i < quirks_length; i++) {
2912                 if (!strcmp(quirks[i].class, class) &&
2913                     !strcmp(quirks[i].name, name)) {
2914                         if (!quirk) {
2915                                 /* found: delete */
2916                                 DNPRINTF(SWM_D_QUIRK,
2917                                     "setquirk: delete #%d %s:%s\n",
2918                                     i, quirks[i].class, quirks[i].name);
2919                                 free(quirks[i].class);
2920                                 free(quirks[i].name);
2921                                 j = quirks_length - 1;
2922                                 if (i < j)
2923                                         quirks[i] = quirks[j];
2924                                 quirks_length--;
2925                                 return;
2926                         } else {
2927                                 /* found: replace */
2928                                 DNPRINTF(SWM_D_QUIRK,
2929                                     "setquirk: replace #%d %s:%s\n",
2930                                     i, quirks[i].class, quirks[i].name);
2931                                 free(quirks[i].class);
2932                                 free(quirks[i].name);
2933                                 quirks[i].class = strdup(class);
2934                                 quirks[i].name = strdup(name);
2935                                 quirks[i].quirk = quirk;
2936                                 return;
2937                         }
2938                 }
2939         }
2940         if (!quirk) {
2941                 fprintf(stderr,
2942                     "error: setquirk: cannot find class/name combination");
2943                 return;
2944         }
2945         /* not found: add */
2946         if (quirks_size == 0 || quirks == NULL) {
2947                 quirks_size = 4;
2948                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2949                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2950                 if (!quirks) {
2951                         fprintf(stderr, "setquirk: malloc failed\n");
2952                         perror(" failed");
2953                         quit(NULL, NULL);
2954                 }
2955         } else if (quirks_length == quirks_size) {
2956                 quirks_size *= 2;
2957                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2958                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2959                 if (!quirks) {
2960                         fprintf(stderr, "setquirk: realloc failed\n");
2961                         perror(" failed");
2962                         quit(NULL, NULL);
2963                 }
2964         }
2965         if (quirks_length < quirks_size) {
2966                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2967                 j = quirks_length++;
2968                 quirks[j].class = strdup(class);
2969                 quirks[j].name = strdup(name);
2970                 quirks[j].quirk = quirk;
2971         } else {
2972                 fprintf(stderr, "quirks array problem?\n");
2973                 if (!quirks) {
2974                         fprintf(stderr, "quirks array problem!\n");
2975                         quit(NULL, NULL);
2976                 }
2977         }
2978 }
2979 int
2980 setconfquirk(char *selector, char *value, int flags)
2981 {
2982         char                    *cp, *class, *name;
2983         int                     retval;
2984         unsigned long           quirks;
2985         if (selector == NULL)
2986                 return (0);
2987         if ((cp = strchr(selector, ':')) == NULL)
2988                 return (0);
2989         *cp = '\0';
2990         class = selector;
2991         name = cp + 1;
2992         if ((retval = parsequirks(value, &quirks)) == 0)
2993                 setquirk(class, name, quirks);
2994         return (retval);
2995 }
2996
2997 void
2998 setup_quirks(void)
2999 {
3000         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
3001         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
3002         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
3003         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
3004         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
3005         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3006         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
3007         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3008         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3009         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3010         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
3011         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
3012         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
3013 }
3014
3015 /* conf file stuff */
3016 #define SWM_CONF_FILE   "scrotwm.conf"
3017
3018 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
3019           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
3020           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
3021           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
3022           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
3023
3024 int
3025 setconfvalue(char *selector, char *value, int flags)
3026 {
3027         switch (flags) {
3028         case SWM_S_BAR_DELAY:
3029                 bar_delay = atoi(value);
3030                 break;
3031         case SWM_S_BAR_ENABLED:
3032                 bar_enabled = atoi(value);
3033                 break;
3034         case SWM_S_STACK_ENABLED:
3035                 stack_enabled = atoi(value);
3036                 break;
3037         case SWM_S_CLOCK_ENABLED:
3038                 clock_enabled = atoi(value);
3039                 break;
3040         case SWM_S_CYCLE_EMPTY:
3041                 cycle_empty = atoi(value);
3042                 break;
3043         case SWM_S_CYCLE_VISIBLE:
3044                 cycle_visible = atoi(value);
3045                 break;
3046         case SWM_S_SS_ENABLED:
3047                 ss_enabled = atoi(value);
3048                 break;
3049         case SWM_S_TERM_WIDTH:
3050                 term_width = atoi(value);
3051                 break;
3052         case SWM_S_TITLE_CLASS_ENABLED:
3053                 title_class_enabled = atoi(value);
3054                 break;
3055         case SWM_S_TITLE_NAME_ENABLED:
3056                 title_name_enabled = atoi(value);
3057                 break;
3058         case SWM_S_BAR_FONT:
3059                 free(bar_fonts[0]);
3060                 if ((bar_fonts[0] = strdup(value)) == NULL)
3061                         err(1, "setconfvalue: bar_font");
3062                 break;
3063         case SWM_S_BAR_ACTION:
3064                 free(bar_argv[0]);
3065                 if ((bar_argv[0] = strdup(value)) == NULL)
3066                         err(1, "setconfvalue: bar_action");
3067                 break;
3068         case SWM_S_SPAWN_TERM:
3069                 free(spawn_term[0]);
3070                 if ((spawn_term[0] = strdup(value)) == NULL)
3071                         err(1, "setconfvalue: spawn_term");
3072                 break;
3073         case SWM_S_SS_APP:
3074                 break;
3075         case SWM_S_DIALOG_RATIO:
3076                 dialog_ratio = atof(value);
3077                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3078                         dialog_ratio = .6;
3079                 break;
3080         default:
3081                 return (1);
3082         }
3083         return (0);
3084 }
3085
3086 int
3087 setconfmodkey(char *selector, char *value, int flags)
3088 {
3089         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3090                 update_modkey(Mod1Mask);
3091         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3092                 update_modkey(Mod2Mask);
3093         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3094                 update_modkey(Mod3Mask);
3095         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3096                 update_modkey(Mod4Mask);
3097         else
3098                 return (1);
3099         return (0);
3100 }
3101
3102 int
3103 setconfcolor(char *selector, char *value, int flags)
3104 {
3105         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3106         return (0);
3107 }
3108
3109 int
3110 setconfregion(char *selector, char *value, int flags)
3111 {
3112         custom_region(value);
3113         return (0);
3114 }
3115
3116 /* config options */
3117 struct config_option {
3118         char                    *optname;
3119         int (*func)(char*, char*, int);
3120         int funcflags;
3121 };
3122 struct config_option configopt[] = {
3123         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3124         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3125         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3126         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3127         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3128         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3129         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3130         { "bind",                       setconfbinding, 0 },
3131         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3132         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3133         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3134         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3135         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3136         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3137         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3138         { "modkey",                     setconfmodkey,  0 },
3139         { "program",                    setconfspawn,   0 },
3140         { "quirk",                      setconfquirk,   0 },
3141         { "region",                     setconfregion,  0 },
3142         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3143         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3144         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3145         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3146         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3147         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3148 };
3149
3150
3151 int
3152 conf_load(char *filename)
3153 {
3154         FILE                    *config;
3155         char                    *line, *cp, *optsub, *optval;
3156         size_t                  linelen, lineno = 0;
3157         int                     wordlen, i, optind;
3158         struct config_option    *opt;
3159
3160         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3161
3162         if (filename == NULL) {
3163                 fprintf(stderr, "conf_load: no filename\n");
3164                 return (1);
3165         }
3166         if ((config = fopen(filename, "r")) == NULL) {
3167                 warn("conf_load: fopen");
3168                 return (1);
3169         }
3170
3171         while (!feof(config)) {
3172                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3173                     == NULL) {
3174                         if (ferror(config))
3175                                 err(1, "%s", filename);
3176                         else
3177                                 continue;
3178                 }
3179                 cp = line;
3180                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3181                 if (cp[0] == '\0') {
3182                         /* empty line */
3183                         free(line);
3184                         continue;
3185                 }
3186                 /* get config option */
3187                 wordlen = strcspn(cp, "=[ \t\n");
3188                 if (wordlen == 0) {
3189                         warnx("%s: line %zd: no option found",
3190                             filename, lineno);
3191                         return (1);
3192                 }
3193                 optind = -1;
3194                 for (i = 0; i < LENGTH(configopt); i++) {
3195                         opt = &configopt[i];
3196                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3197                             strlen(opt->optname) == wordlen) {
3198                                 optind = i;
3199                                 break;
3200                         }
3201                 }
3202                 if (optind == -1) {
3203                         warnx("%s: line %zd: unknown option %.*s",
3204                             filename, lineno, wordlen, cp);
3205                         return (1);
3206                 }
3207                 cp += wordlen;
3208                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3209                 /* get [selector] if any */
3210                 optsub = NULL;
3211                 if (*cp == '[') {
3212                         cp++;
3213                         wordlen = strcspn(cp, "]");
3214                         if (*cp != ']') {
3215                                 if (wordlen == 0) {
3216                                         warnx("%s: line %zd: syntax error",
3217                                             filename, lineno);
3218                                         return (1);
3219                                 }
3220                                 asprintf(&optsub, "%.*s", wordlen, cp);
3221                         }
3222                         cp += wordlen;
3223                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3224                 }
3225                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3226                 /* get RHS value */
3227                 optval = strdup(cp);
3228                 /* call function to deal with it all */
3229                 if (configopt[optind].func(optsub, optval,
3230                     configopt[optind].funcflags) != 0) {
3231                         fprintf(stderr, "%s line %zd: %s\n",
3232                             filename, lineno, line);
3233                         errx(1, "%s: line %zd: invalid data for %s",
3234                             filename, lineno, configopt[optind].optname);
3235                 }
3236                 free(optval);
3237                 free(optsub);
3238                 free(line);
3239         }
3240
3241         fclose(config);
3242         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3243
3244         return (0);
3245 }
3246
3247 struct ws_win *
3248 manage_window(Window id)
3249 {
3250         Window                  trans = 0;
3251         struct workspace        *ws;
3252         struct ws_win           *win, *ww;
3253         int                     format, i, ws_idx, n, border_me = 0;
3254         unsigned long           nitems, bytes;
3255         Atom                    ws_idx_atom = 0, type;
3256         Atom                    *prot = NULL, *pp;
3257         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3258         struct swm_region       *r;
3259         long                    mask;
3260         const char              *errstr;
3261         XWindowChanges          wc;
3262
3263         if ((win = find_window(id)) != NULL)
3264                         return (win);   /* already being managed */
3265
3266         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3267                 errx(1, "calloc: failed to allocate memory for new window");
3268
3269         /* Get all the window data in one shot */
3270         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3271         if (ws_idx_atom)
3272                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3273                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3274         XGetWindowAttributes(display, id, &win->wa);
3275         XGetWMNormalHints(display, id, &win->sh, &mask);
3276         XGetTransientForHint(display, id, &trans);
3277         if (trans) {
3278                 win->transient = trans;
3279                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3280                     (unsigned)win->id, win->transient);
3281         }
3282         /* get supported protocols */
3283         if (XGetWMProtocols(display, id, &prot, &n)) {
3284                 for (i = 0, pp = prot; i < n; i++, pp++)
3285                         if (*pp == adelete)
3286                                 win->can_delete = 1;
3287                 if (prot)
3288                         XFree(prot);
3289         }
3290
3291         /*
3292          * Figure out where to put the window. If it was previously assigned to
3293          * a workspace (either by spawn() or manually moving), and isn't
3294          * transient, * put it in the same workspace
3295          */
3296         r = root_to_region(win->wa.root);
3297         if (prop && win->transient == 0) {
3298                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3299                 ws_idx = strtonum(prop, 0, 9, &errstr);
3300                 if (errstr) {
3301                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3302                             errstr, prop);
3303                 }
3304                 ws = &r->s->ws[ws_idx];
3305         } else {
3306                 ws = r->ws;
3307                 /* this should launch transients in the same ws as parent */
3308                 if (id && trans)
3309                         if ((ww = find_window(trans)) != NULL)
3310                                 if (ws->r) {
3311                                         ws = ww->ws;
3312                                         if (ww->ws->r)
3313                                                 r = ww->ws->r;
3314                                         else
3315                                                 fprintf(stderr,
3316                                                     "fix this bug mcbride\n");
3317                                         border_me = 1;
3318                                 }
3319         }
3320
3321         /* set up the window layout */
3322         win->id = id;
3323         win->ws = ws;
3324         win->s = r->s;  /* this never changes */
3325         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3326
3327         win->g.w = win->wa.width;
3328         win->g.h = win->wa.height;
3329         win->g.x = win->wa.x;
3330         win->g.y = win->wa.y;
3331
3332         /* Set window properties so we can remember this after reincarnation */
3333         if (ws_idx_atom && prop == NULL &&
3334             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3335                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3336                     ws_idx_str);
3337                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3338                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3339         }
3340         XFree(prop);
3341
3342         if (XGetClassHint(display, win->id, &win->ch)) {
3343                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3344                     win->ch.res_class, win->ch.res_name);
3345                 for (i = 0; i < quirks_length; i++){
3346                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3347                             !strcmp(win->ch.res_name, quirks[i].name)) {
3348                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3349                                     win->ch.res_class, win->ch.res_name);
3350                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3351                                         win->floating = 1;
3352                                 win->quirks = quirks[i].quirk;
3353                         }
3354                 }
3355         }
3356
3357         /* alter window position if quirky */
3358         if (win->quirks & SWM_Q_ANYWHERE) {
3359                 win->manual = 1; /* don't center the quirky windows */
3360                 bzero(&wc, sizeof wc);
3361                 mask = 0;
3362                 if (win->g.y < bar_height) {
3363                         win->g.y = wc.y = bar_height;
3364                         mask |= CWY;
3365                 }
3366                 if (win->g.w + win->g.x > WIDTH(r)) {
3367                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3368                         mask |= CWX;
3369                 }
3370                 border_me = 1;
3371         }
3372
3373         /* Reset font sizes (the bruteforce way; no default keybinding). */
3374         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3375                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3376                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3377                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3378                         fake_keypress(win, XK_KP_Add, ShiftMask);
3379         }
3380
3381         /* border me */
3382         if (border_me) {
3383                 bzero(&wc, sizeof wc);
3384                 wc.border_width = 1;
3385                 mask = CWBorderWidth;
3386                 XConfigureWindow(display, win->id, mask, &wc);
3387         }
3388
3389         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3390             PropertyChangeMask | StructureNotifyMask);
3391
3392         set_win_state(win, NormalState);
3393
3394         /* floaters need to be mapped if they are in the current workspace */
3395         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3396                 XMapRaised(display, win->id);
3397
3398         return (win);
3399 }
3400
3401 void
3402 unmanage_window(struct ws_win *win)
3403 {
3404         struct workspace        *ws;
3405
3406         if (win == NULL)
3407                 return;
3408
3409         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3410
3411         ws = win->ws;
3412         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3413         set_win_state(win, WithdrawnState);
3414         if (win->ch.res_class)
3415                 XFree(win->ch.res_class);
3416         if (win->ch.res_name)
3417                 XFree(win->ch.res_name);
3418         free(win);
3419 }
3420
3421 void
3422 expose(XEvent *e)
3423 {
3424         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3425 }
3426
3427 void
3428 keypress(XEvent *e)
3429 {
3430         unsigned int            i;
3431         KeySym                  keysym;
3432         XKeyEvent               *ev = &e->xkey;
3433
3434         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3435
3436         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3437         for (i = 0; i < keys_length; i++)
3438                 if (keysym == keys[i].keysym
3439                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3440                    && keyfuncs[keys[i].funcid].func) {
3441                         if (keys[i].funcid == kf_spawn_custom)
3442                                 spawn_custom(
3443                                     root_to_region(ev->root),
3444                                     &(keyfuncs[keys[i].funcid].args),
3445                                     keys[i].spawn_name
3446                                     );
3447                         else
3448                                 keyfuncs[keys[i].funcid].func(
3449                                     root_to_region(ev->root),
3450                                     &(keyfuncs[keys[i].funcid].args)
3451                                     );
3452                 }
3453 }
3454
3455 void
3456 buttonpress(XEvent *e)
3457 {
3458         XButtonPressedEvent     *ev = &e->xbutton;
3459
3460         struct ws_win           *win;
3461         int                     i, action;
3462
3463         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3464
3465         action = root_click;
3466         if ((win = find_window(ev->window)) == NULL)
3467                 return;
3468         else {
3469                 focus_win(win);
3470                 action = client_click;
3471         }
3472
3473         for (i = 0; i < LENGTH(buttons); i++)
3474                 if (action == buttons[i].action && buttons[i].func &&
3475                     buttons[i].button == ev->button &&
3476                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3477                         buttons[i].func(win, &buttons[i].args);
3478 }
3479
3480 void
3481 configurerequest(XEvent *e)
3482 {
3483         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3484         struct ws_win           *win;
3485         int                     new = 0;
3486         XWindowChanges          wc;
3487
3488         if ((win = find_window(ev->window)) == NULL)
3489                 new = 1;
3490
3491         if (new) {
3492                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3493                     ev->window);
3494                 bzero(&wc, sizeof wc);
3495                 wc.x = ev->x;
3496                 wc.y = ev->y;
3497                 wc.width = ev->width;
3498                 wc.height = ev->height;
3499                 wc.border_width = ev->border_width;
3500                 wc.sibling = ev->above;
3501                 wc.stack_mode = ev->detail;
3502                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3503         } else {
3504                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3505                     ev->window);
3506                 if (win->floating) {
3507                         if (ev->value_mask & CWX)
3508                                 win->g.x = ev->x;
3509                         if (ev->value_mask & CWY)
3510                                 win->g.y = ev->y;
3511                         if (ev->value_mask & CWWidth)
3512                                 win->g.w = ev->width;
3513                         if (ev->value_mask & CWHeight)
3514                                 win->g.h = ev->height;
3515                         if (win->ws->r != NULL) {
3516                                 /* this seems to be full screen */
3517                                 if (win->g.w >= WIDTH(win->ws->r)) {
3518                                         win->g.x = 0;
3519                                         win->g.w = WIDTH(win->ws->r);
3520                                         ev->value_mask |= CWX | CWWidth;
3521                                 }
3522                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3523                                         /* kill border */
3524                                         win->g.y = 0;
3525                                         win->g.h = HEIGHT(win->ws->r);
3526                                         ev->value_mask |= CWY | CWHeight;
3527                                 }
3528                         }
3529                         if ((ev->value_mask & (CWX | CWY)) &&
3530                             !(ev->value_mask & (CWWidth | CWHeight)))
3531                                 config_win(win);
3532                         XMoveResizeWindow(display, win->id,
3533                             win->g.x, win->g.y, win->g.w, win->g.h);
3534                 } else
3535                         config_win(win);
3536         }
3537 }
3538
3539 void
3540 configurenotify(XEvent *e)
3541 {
3542         struct ws_win           *win;
3543         long                    mask;
3544
3545         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3546             e->xconfigure.window);
3547
3548         XMapWindow(display, e->xconfigure.window);
3549         win = find_window(e->xconfigure.window);
3550         if (win) {
3551                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3552                 adjust_font(win);
3553                 XMapWindow(display, win->id);
3554                 if (font_adjusted)
3555                         stack();
3556         }
3557 }
3558
3559 void
3560 destroynotify(XEvent *e)
3561 {
3562         struct ws_win           *win, *winfocus = NULL;
3563         struct workspace        *ws;
3564         struct ws_win_list      *wl;
3565
3566         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3567
3568         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3569
3570         SWM_EV_PROLOGUE(display);
3571
3572         if ((win = find_window(ev->window)) != NULL) {
3573                 /* find a window to focus */
3574                 ws = win->ws;
3575                 wl = &ws->winlist;
3576
3577                 /* if we are transient give focus to parent */
3578                 if (win->transient)
3579                         winfocus = find_window(win->transient);
3580                 else if (ws->focus == win) {
3581                         /* if in max_stack try harder */
3582                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3583                                 if (win != ws->focus && win != ws->focus_prev)
3584                                         winfocus = ws->focus_prev;
3585
3586                         /* fallback and normal handling */
3587                         if (winfocus == NULL) {
3588                                 if (TAILQ_FIRST(wl) == win)
3589                                         winfocus = TAILQ_NEXT(win, entry);
3590                                 else {
3591                                         winfocus = TAILQ_PREV(ws->focus,
3592                                             ws_win_list, entry);
3593                                         if (winfocus == NULL)
3594                                                 winfocus = TAILQ_LAST(wl,
3595                                                     ws_win_list);
3596                                 }
3597                         }
3598                 }
3599                 ignore_enter = 1;
3600                 unmanage_window(win);
3601                 stack();
3602                 if (winfocus)
3603                         focus_win(winfocus);
3604                 ignore_enter = 0;
3605         }
3606
3607         SWM_EV_EPILOGUE(display);
3608 }
3609
3610 void
3611 enternotify(XEvent *e)
3612 {
3613         XCrossingEvent          *ev = &e->xcrossing;
3614         struct ws_win           *win;
3615
3616         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3617
3618         if (ignore_enter) {
3619                 /* eat event(r) to prevent autofocus */
3620                 ignore_enter = 0;
3621                 return;
3622         }
3623         /*
3624          * happens when a window is created or destroyed and the border
3625          * crosses the mouse pointer
3626          */
3627         if (QLength(display))
3628                 return;
3629
3630         if ((win = find_window(ev->window)) != NULL) {
3631                 if (win->ws->focus == win)
3632                         return;
3633                 focus_win(win);
3634         }
3635 }
3636
3637 void
3638 focusin(XEvent *e)
3639 {
3640         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3641 }
3642
3643 void
3644 focusout(XEvent *e)
3645 {
3646         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3647 }
3648
3649 void
3650 mapnotify(XEvent *e)
3651 {
3652         struct ws_win           *win;
3653         XMappingEvent           *ev = &e->xmapping;
3654
3655         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3656
3657         SWM_EV_PROLOGUE(display);
3658
3659         win = find_window(ev->window);
3660         if (win)
3661                 set_win_state(win, NormalState);
3662
3663         XRefreshKeyboardMapping(ev);
3664         if (ev->request == MappingKeyboard)
3665                 grabkeys();
3666
3667         SWM_EV_EPILOGUE(display);
3668 }
3669
3670 void
3671 maprequest(XEvent *e)
3672 {
3673         struct ws_win           *win;
3674         struct swm_region       *r;
3675
3676         XMapRequestEvent        *ev = &e->xmaprequest;
3677         XWindowAttributes       wa;
3678
3679         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3680             e->xmaprequest.window);
3681
3682         SWM_EV_PROLOGUE(display);
3683
3684         if (!XGetWindowAttributes(display, ev->window, &wa))
3685                 goto done;
3686         if (wa.override_redirect)
3687                 goto done;
3688
3689         manage_window(e->xmaprequest.window);
3690
3691         stack();
3692
3693         /* make new win focused */
3694         win = find_window(ev->window);
3695         r = root_to_region(win->wa.root);
3696
3697         if (win->ws == r->ws)
3698                 focus_win(win);
3699
3700 done:
3701         SWM_EV_EPILOGUE(display);
3702 }
3703
3704 void
3705 propertynotify(XEvent *e)
3706 {
3707         struct ws_win           *win;
3708         XPropertyEvent          *ev = &e->xproperty;
3709
3710         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3711             ev->window);
3712
3713         if (ev->state == PropertyDelete)
3714                 return; /* ignore */
3715         win = find_window(ev->window);
3716         if (win == NULL)
3717                 return;
3718
3719         switch (ev->atom) {
3720         case XA_WM_NORMAL_HINTS:
3721 #if 0
3722                 long            mask;
3723                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3724                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3725                 if (win->sh.flags & PMinSize) {
3726                         win->g.w = win->sh.min_width;
3727                         win->g.h = win->sh.min_height;
3728                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3729                 }
3730                 XMoveResizeWindow(display, win->id,
3731                     win->g.x, win->g.y, win->g.w, win->g.h);
3732 #endif
3733                 break;
3734         default:
3735                 break;
3736         }
3737 }
3738
3739 void
3740 unmapnotify(XEvent *e)
3741 {
3742         struct ws_win           *win, *winfocus = NULL;
3743         struct workspace        *ws;
3744
3745         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3746
3747         SWM_EV_PROLOGUE(display);
3748
3749         /* determine if we need to help unmanage this window */
3750         win = find_window(e->xunmap.window);
3751         if (win == NULL)
3752                 goto done;
3753
3754         if (getstate(e->xunmap.window) == NormalState) {
3755                 /*
3756                  * this window does not have a destroy event but but it is no
3757                  * longer visible due to the app unmapping it so unmanage it
3758                  */
3759
3760                 ws = win->ws;
3761                 /* if we are max_stack try harder to focus on something */
3762                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV) {
3763                         if (win->transient)
3764                                 winfocus = find_window(win->transient);
3765                         else if (win != ws->focus && win != ws->focus_prev)
3766                                 winfocus = ws->focus_prev;
3767                 }
3768
3769                 /* normal and fallback if haven't found anything to focus on */
3770                 if (winfocus == NULL) {
3771                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3772                         if (TAILQ_FIRST(&ws->winlist) == win)
3773                                 winfocus = TAILQ_NEXT(win, entry);
3774                         else {
3775                                 if (ws->focus)
3776                                         winfocus = TAILQ_PREV(ws->focus,
3777                                             ws_win_list, entry);
3778                                 if (winfocus == NULL)
3779                                         winfocus = TAILQ_LAST(&ws->winlist,
3780                                             ws_win_list);
3781                         }
3782                 }
3783
3784                 /* trash window and refocus */
3785                 unmanage_window(win);
3786                 ignore_enter = 1;
3787                 stack();
3788                 focus_win(winfocus);
3789                 ignore_enter = 0;
3790         }
3791
3792 done:
3793         SWM_EV_EPILOGUE(display);
3794 }
3795
3796 void
3797 visibilitynotify(XEvent *e)
3798 {
3799         int                     i;
3800         struct swm_region       *r;
3801
3802         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3803             e->xvisibility.window);
3804         if (e->xvisibility.state == VisibilityUnobscured)
3805                 for (i = 0; i < ScreenCount(display); i++)
3806                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3807                                 if (e->xvisibility.window == r->bar_window)
3808                                         bar_update();
3809 }
3810
3811 int
3812 xerror_start(Display *d, XErrorEvent *ee)
3813 {
3814         other_wm = 1;
3815         return (-1);
3816 }
3817
3818 int
3819 xerror(Display *d, XErrorEvent *ee)
3820 {
3821         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3822         return (-1);
3823 }
3824
3825 int
3826 active_wm(void)
3827 {
3828         other_wm = 0;
3829         xerrorxlib = XSetErrorHandler(xerror_start);
3830
3831         /* this causes an error if some other window manager is running */
3832         XSelectInput(display, DefaultRootWindow(display),
3833             SubstructureRedirectMask);
3834         XSync(display, False);
3835         if (other_wm)
3836                 return (1);
3837
3838         XSetErrorHandler(xerror);
3839         XSync(display, False);
3840         return (0);
3841 }
3842
3843 void
3844 new_region(struct swm_screen *s, int x, int y, int w, int h)
3845 {
3846         struct swm_region       *r, *n;
3847         struct workspace        *ws = NULL;
3848         int                     i;
3849
3850         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3851              s->idx, w, h, x, y);
3852
3853         /* remove any conflicting regions */
3854         n = TAILQ_FIRST(&s->rl);
3855         while (n) {
3856                 r = n;
3857                 n = TAILQ_NEXT(r, entry);
3858                 if (X(r) < (x + w) &&
3859                     (X(r) + WIDTH(r)) > x &&
3860                     Y(r) < (y + h) &&
3861                     (Y(r) + HEIGHT(r)) > y) {
3862                         XDestroyWindow(display, r->bar_window);
3863                         TAILQ_REMOVE(&s->rl, r, entry);
3864                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3865                 }
3866         }
3867
3868         /* search old regions for one to reuse */
3869
3870         /* size + location match */
3871         TAILQ_FOREACH(r, &s->orl, entry)
3872                 if (X(r) == x && Y(r) == y &&
3873                     HEIGHT(r) == h && WIDTH(r) == w)
3874                         break;
3875
3876         /* size match */
3877         TAILQ_FOREACH(r, &s->orl, entry)
3878                 if (HEIGHT(r) == h && WIDTH(r) == w)
3879                         break;
3880
3881         if (r != NULL) {
3882                 TAILQ_REMOVE(&s->orl, r, entry);
3883                 /* try to use old region's workspace */
3884                 if (r->ws->r == NULL)
3885                         ws = r->ws;
3886         } else
3887                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3888                         errx(1, "calloc: failed to allocate memory for screen");
3889
3890         /* if we don't have a workspace already, find one */
3891         if (ws == NULL) {
3892                 for (i = 0; i < SWM_WS_MAX; i++)
3893                         if (s->ws[i].r == NULL) {
3894                                 ws = &s->ws[i];
3895                                 break;
3896                         }
3897         }
3898
3899         if (ws == NULL)
3900                 errx(1, "no free workspaces\n");
3901
3902         X(r) = x;
3903         Y(r) = y;
3904         WIDTH(r) = w;
3905         HEIGHT(r) = h;
3906         r->s = s;
3907         r->ws = ws;
3908         ws->r = r;
3909         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3910 }
3911
3912 void
3913 scan_xrandr(int i)
3914 {
3915 #ifdef SWM_XRR_HAS_CRTC
3916         XRRCrtcInfo             *ci;
3917         XRRScreenResources      *sr;
3918         int                     c;
3919         int                     ncrtc = 0;
3920 #endif /* SWM_XRR_HAS_CRTC */
3921         struct swm_region       *r;
3922
3923
3924         if (i >= ScreenCount(display))
3925                 errx(1, "invalid screen");
3926
3927         /* remove any old regions */
3928         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3929                 r->ws->old_r = r->ws->r = NULL;
3930                 XDestroyWindow(display, r->bar_window);
3931                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3932                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3933         }
3934
3935         /* map virtual screens onto physical screens */
3936 #ifdef SWM_XRR_HAS_CRTC
3937         outputs = 0;
3938         if (xrandr_support) {
3939                 sr = XRRGetScreenResources(display, screens[i].root);
3940                 if (sr == NULL)
3941                         new_region(&screens[i], 0, 0,
3942                             DisplayWidth(display, i),
3943                             DisplayHeight(display, i));
3944                 else
3945                         ncrtc = sr->ncrtc;
3946
3947                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3948                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3949                         if (ci->noutput == 0)
3950                                 continue;
3951                         outputs++;
3952
3953                         if (ci != NULL && ci->mode == None)
3954                                 new_region(&screens[i], 0, 0,
3955                                     DisplayWidth(display, i),
3956                                     DisplayHeight(display, i));
3957                         else
3958                                 new_region(&screens[i],
3959                                     ci->x, ci->y, ci->width, ci->height);
3960                 }
3961                 if (ci)
3962                         XRRFreeCrtcInfo(ci);
3963                 XRRFreeScreenResources(sr);
3964         } else
3965 #endif /* SWM_XRR_HAS_CRTC */
3966         {
3967                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3968                     DisplayHeight(display, i));
3969         }
3970 }
3971
3972 void
3973 screenchange(XEvent *e) {
3974         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3975         struct swm_region               *r;
3976         int                             i;
3977
3978         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3979
3980         if (!XRRUpdateConfiguration(e))
3981                 return;
3982
3983         /* silly event doesn't include the screen index */
3984         for (i = 0; i < ScreenCount(display); i++)
3985                 if (screens[i].root == xe->root)
3986                         break;
3987         if (i >= ScreenCount(display))
3988                 errx(1, "screenchange: screen not found\n");
3989
3990         /* brute force for now, just re-enumerate the regions */
3991         scan_xrandr(i);
3992
3993         /* add bars to all regions */
3994         for (i = 0; i < ScreenCount(display); i++)
3995                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3996                         bar_setup(r);
3997         stack();
3998 }
3999
4000 void
4001 setup_screens(void)
4002 {
4003         Window                  d1, d2, *wins = NULL;
4004         XWindowAttributes       wa;
4005         unsigned int            no;
4006         int                     i, j, k;
4007         int                     errorbase, major, minor;
4008         struct workspace        *ws;
4009         int                     ws_idx_atom;
4010         long                    state, manage;
4011
4012         if ((screens = calloc(ScreenCount(display),
4013              sizeof(struct swm_screen))) == NULL)
4014                 errx(1, "calloc: screens");
4015
4016         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
4017
4018         /* initial Xrandr setup */
4019         xrandr_support = XRRQueryExtension(display,
4020             &xrandr_eventbase, &errorbase);
4021         if (xrandr_support)
4022                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
4023                         xrandr_support = 0;
4024
4025         /* map physical screens */
4026         for (i = 0; i < ScreenCount(display); i++) {
4027                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
4028                 screens[i].idx = i;
4029                 TAILQ_INIT(&screens[i].rl);
4030                 TAILQ_INIT(&screens[i].orl);
4031                 screens[i].root = RootWindow(display, i);
4032
4033                 /* set default colors */
4034                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
4035                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
4036                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
4037                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
4038                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
4039
4040                 /* init all workspaces */
4041                 /* XXX these should be dynamically allocated too */
4042                 for (j = 0; j < SWM_WS_MAX; j++) {
4043                         ws = &screens[i].ws[j];
4044                         ws->idx = j;
4045                         ws->restack = 1;
4046                         ws->focus = NULL;
4047                         ws->r = NULL;
4048                         ws->old_r = NULL;
4049                         TAILQ_INIT(&ws->winlist);
4050
4051                         for (k = 0; layouts[k].l_stack != NULL; k++)
4052                                 if (layouts[k].l_config != NULL)
4053                                         layouts[k].l_config(ws,
4054                                             SWM_ARG_ID_STACKINIT);
4055                         ws->cur_layout = &layouts[0];
4056                 }
4057                 /* grab existing windows (before we build the bars)*/
4058                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4059                         continue;
4060
4061                 scan_xrandr(i);
4062
4063                 if (xrandr_support)
4064                         XRRSelectInput(display, screens[i].root,
4065                             RRScreenChangeNotifyMask);
4066
4067                 /* attach windows to a region */
4068                 /* normal windows */
4069                 for (j = 0; j < no; j++) {
4070                         XGetWindowAttributes(display, wins[j], &wa);
4071                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4072                             wa.override_redirect ||
4073                             XGetTransientForHint(display, wins[j], &d1))
4074                                 continue;
4075
4076                         state = getstate(wins[j]);
4077                         manage = state == NormalState || state == IconicState;
4078                         if (wa.map_state == IsViewable || manage)
4079                                 manage_window(wins[j]);
4080                 }
4081                 /* transient windows */
4082                 for (j = 0; j < no; j++) {
4083                         if (!XGetWindowAttributes(display, wins[j], &wa))
4084                                 continue;
4085
4086                         state = getstate(wins[j]);
4087                         manage = state == NormalState || state == IconicState;
4088                         if (XGetTransientForHint(display, wins[j], &d1) &&
4089                             manage)
4090                                 manage_window(wins[j]);
4091                 }
4092                 if (wins) {
4093                         XFree(wins);
4094                         wins = NULL;
4095                 }
4096         }
4097 }
4098 void
4099 setup_globals(void)
4100 {
4101         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4102             == NULL)
4103                 err(1, "setup_globals: strdup");
4104         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4105             == NULL)
4106                 err(1, "setup_globals: strdup");
4107         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4108             == NULL)
4109                 err(1, "setup_globals: strdup");
4110         if ((spawn_term[0] = strdup("xterm")) == NULL)
4111                 err(1, "setup_globals: strdup");
4112 }
4113
4114 void
4115 workaround(void)
4116 {
4117         int                     i;
4118         Atom                    netwmcheck, netwmname, utf8_string;
4119         Window                  root;
4120
4121         /* work around sun jdk bugs, code from wmname */
4122         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4123         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4124         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4125         for (i = 0; i < ScreenCount(display); i++) {
4126                 root = screens[i].root;
4127                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4128                     PropModeReplace, (unsigned char *)&root, 1);
4129                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4130                     PropModeReplace, "LG3D", strlen("LG3D"));
4131         }
4132 }
4133
4134 int
4135 main(int argc, char *argv[])
4136 {
4137         struct passwd           *pwd;
4138         struct swm_region       *r, *rr;
4139         struct ws_win           *winfocus = NULL;
4140         char                    conf[PATH_MAX], *cfile = NULL;
4141         struct stat             sb;
4142         XEvent                  e;
4143         int                     xfd, i;
4144         fd_set                  rd;
4145
4146         start_argv = argv;
4147         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4148             SWM_VERSION, cvstag);
4149         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4150                 warnx("no locale support");
4151
4152         if (!(display = XOpenDisplay(0)))
4153                 errx(1, "can not open display");
4154
4155         if (active_wm())
4156                 errx(1, "other wm running");
4157
4158         /* handle some signale */
4159         installsignal(SIGINT, "INT");
4160         installsignal(SIGHUP, "HUP");
4161         installsignal(SIGQUIT, "QUIT");
4162         installsignal(SIGTERM, "TERM");
4163         installsignal(SIGCHLD, "CHLD");
4164
4165         astate = XInternAtom(display, "WM_STATE", False);
4166         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4167         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4168
4169         /* look for local and global conf file */
4170         pwd = getpwuid(getuid());
4171         if (pwd == NULL)
4172                 errx(1, "invalid user %d", getuid());
4173
4174         setup_screens();
4175         setup_globals();
4176         setup_keys();
4177         setup_quirks();
4178         setup_spawn();
4179
4180         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4181         if (stat(conf, &sb) != -1) {
4182                 if (S_ISREG(sb.st_mode))
4183                         cfile = conf;
4184         } else {
4185                 /* try global conf file */
4186                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4187                 if (!stat(conf, &sb))
4188                         if (S_ISREG(sb.st_mode))
4189                                 cfile = conf;
4190         }
4191         if (cfile)
4192                 conf_load(cfile);
4193
4194         /* setup all bars */
4195         for (i = 0; i < ScreenCount(display); i++)
4196                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4197                         if (winfocus == NULL)
4198                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4199                         bar_setup(r);
4200                 }
4201
4202         /* set some values to work around bad programs */
4203         workaround();
4204
4205         grabkeys();
4206         stack();
4207
4208         xfd = ConnectionNumber(display);
4209         while (running) {
4210                 while (XPending(display)) {
4211                         XNextEvent(display, &e);
4212                         if (running == 0)
4213                                 goto done;
4214                         if (e.type < LASTEvent) {
4215                                 dumpevent(&e);
4216                                 if (handler[e.type])
4217                                         handler[e.type](&e);
4218                                 else
4219                                         DNPRINTF(SWM_D_EVENT,
4220                                             "win: %lu unknown event: %d\n",
4221                                             e.xany.window, e.type);
4222                         } else {
4223                                 switch (e.type - xrandr_eventbase) {
4224                                 case RRScreenChangeNotify:
4225                                         screenchange(&e);
4226                                         break;
4227                                 default:
4228                                         DNPRINTF(SWM_D_EVENT,
4229                                             "win: %lu unknown xrandr event: "
4230                                             "%d\n", e.xany.window, e.type);
4231                                         break;
4232                                 }
4233                         }
4234                 }
4235
4236                 /* if we are being restarted go focus on first window */
4237                 if (winfocus) {
4238                         rr = TAILQ_FIRST(&screens[0].rl);
4239                         /* move pointer to first screen if multi screen */
4240                         if (ScreenCount(display) > 1 || outputs > 1)
4241                                 XWarpPointer(display, None, rr->s[0].root,
4242                                     0, 0, 0, 0, rr->g.x,
4243                                     rr->g.y + bar_enabled ? bar_height : 0);
4244
4245                         focus_win(winfocus);
4246                         winfocus = NULL;
4247                         continue;
4248                 }
4249
4250                 FD_ZERO(&rd);
4251                 FD_SET(xfd, &rd);
4252                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4253                         if (errno != EINTR)
4254                                 DNPRINTF(SWM_D_MISC, "select failed");
4255                 if (running == 0)
4256                         goto done;
4257                 if (bar_alarm) {
4258                         bar_alarm = 0;
4259                         bar_update();
4260                 }
4261         }
4262 done:
4263         bar_extra_stop();
4264
4265         XCloseDisplay(display);
4266
4267         return (0);
4268 }