scrotwm.c

   1 /* $scrotwm$ */
   2 /*
   3  * Copyright (c) 2009 Marco Peereboom <marco@peereboom.us>
   4  * Copyright (c) 2009 Ryan McBride <mcbride@countersiege.com>
   5  * Copyright (c) 2009 Darrin Chandler <dwchandler@stilyagin.com>
   6  * Copyright (c) 2009 Pierre-Yves Ritschard <pyr@spootnik.org>
   7  *
   8  * Permission to use, copy, modify, and distribute this software for any
   9  * purpose with or without fee is hereby granted, provided that the above
  10  * copyright notice and this permission notice appear in all copies.
  11  *
  12  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  13  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  14  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  15  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  16  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
  17  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
  18  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  19  */
  20 /*
  21  * Much code and ideas taken from dwm under the following license:
  22  * MIT/X Consortium License
  23  *
  24  * 2006-2008 Anselm R Garbe <garbeam at gmail dot com>
  25  * 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
  26  * 2006-2007 Jukka Salmi <jukka at salmi dot ch>
  27  * 2007 Premysl Hruby <dfenze at gmail dot com>
  28  * 2007 Szabolcs Nagy <nszabolcs at gmail dot com>
  29  * 2007 Christof Musik <christof at sendfax dot de>
  30  * 2007-2008 Enno Gottox Boland <gottox at s01 dot de>
  31  * 2007-2008 Peter Hartlich <sgkkr at hartlich dot com>
  32  * 2008 Martin Hurton <martin dot hurton at gmail dot com>
  33  *
  34  * Permission is hereby granted, free of charge, to any person obtaining a
  35  * copy of this software and associated documentation files (the "Software"),
  36  * to deal in the Software without restriction, including without limitation
  37  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  38  * and/or sell copies of the Software, and to permit persons to whom the
  39  * Software is furnished to do so, subject to the following conditions:
  40  *
  41  * The above copyright notice and this permission notice shall be included in
  42  * all copies or substantial portions of the Software.
  43  *
  44  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  45  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  46  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  47  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  48  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  49  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  50  * DEALINGS IN THE SOFTWARE.
  51  */
  52
  53 static const char       *cvstag = "$scrotwm$";
  54
  55 #define SWM_VERSION     "0.9.9"
  56
  57 #include <stdio.h>
  58 #include <stdlib.h>
  59 #include <err.h>
  60 #include <errno.h>
  61 #include <fcntl.h>
  62 #include <locale.h>
  63 #include <unistd.h>
  64 #include <time.h>
  65 #include <signal.h>
  66 #include <string.h>
  67 #include <util.h>
  68 #include <pwd.h>
  69 #include <ctype.h>
  70
  71 #include <sys/types.h>
  72 #include <sys/time.h>
  73 #include <sys/stat.h>
  74 #include <sys/wait.h>
  75 #include <sys/queue.h>
  76 #include <sys/param.h>
  77 #include <sys/select.h>
  78
  79 #include <X11/cursorfont.h>
  80 #include <X11/keysym.h>
  81 #include <X11/Xatom.h>
  82 #include <X11/Xlib.h>
  83 #include <X11/Xproto.h>
  84 #include <X11/Xutil.h>
  85 #include <X11/extensions/Xrandr.h>
  86
  87 #if RANDR_MAJOR < 1
  88 #  error XRandR versions less than 1.0 are not supported
  89 #endif
  90
  91 #if RANDR_MAJOR >= 1
  92 #if RANDR_MINOR >= 2
  93 #define SWM_XRR_HAS_CRTC
  94 #endif
  95 #endif
  96
  97 /* #define SWM_DEBUG */
  98 #ifdef SWM_DEBUG
  99 #define DPRINTF(x...)           do { if (swm_debug) fprintf(stderr, x); } while (0)
 100 #define DNPRINTF(n,x...)        do { if (swm_debug & n) fprintf(stderr, x); } while (0)
 101 #define SWM_D_MISC              0x0001
 102 #define SWM_D_EVENT             0x0002
 103 #define SWM_D_WS                0x0004
 104 #define SWM_D_FOCUS             0x0008
 105 #define SWM_D_MOVE              0x0010
 106 #define SWM_D_STACK             0x0020
 107 #define SWM_D_MOUSE             0x0040
 108 #define SWM_D_PROP              0x0080
 109 #define SWM_D_CLASS             0x0100
 110 #define SWM_D_KEY               0x0200
 111 #define SWM_D_QUIRK             0x0400
 112 #define SWM_D_SPAWN             0x0800
 113 #define SWM_D_EVENTQ            0x1000
 114 #define SWM_D_CONF              0x2000
 115
 116 u_int32_t               swm_debug = 0
 117                             | SWM_D_MISC
 118                             | SWM_D_EVENT
 119                             | SWM_D_WS
 120                             | SWM_D_FOCUS
 121                             | SWM_D_MOVE
 122                             | SWM_D_STACK
 123                             | SWM_D_MOUSE
 124                             | SWM_D_PROP
 125                             | SWM_D_CLASS
 126                             | SWM_D_KEY
 127                             | SWM_D_QUIRK
 128                             | SWM_D_SPAWN
 129                             | SWM_D_EVENTQ
 130                             | SWM_D_CONF
 131                             ;
 132 #else
 133 #define DPRINTF(x...)
 134 #define DNPRINTF(n,x...)
 135 #endif
 136
 137 #define LENGTH(x)               (sizeof x / sizeof x[0])
 138 #define MODKEY                  Mod1Mask
 139 #define CLEANMASK(mask)         (mask & ~(numlockmask | LockMask))
 140 #define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
 141 #define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
 142 #define SWM_PROPLEN             (16)
 143 #define SWM_FUNCNAME_LEN        (32)
 144 #define SWM_KEYS_LEN            (255)
 145 #define SWM_QUIRK_LEN           (64)
 146 #define X(r)                    (r)->g.x
 147 #define Y(r)                    (r)->g.y
 148 #define WIDTH(r)                (r)->g.w
 149 #define HEIGHT(r)               (r)->g.h
 150 #define SWM_MAX_FONT_STEPS      (3)
 151 #define SWM_EV_PROLOGUE(x)      do { XGrabServer(x); } while (0)
 152 #define SWM_EV_EPILOGUE(x)      do { XUngrabServer(x); XFlush(x); } while (0)
 153
 154 #ifndef SWM_LIB
 155 #define SWM_LIB                 "/usr/local/lib/libswmhack.so"
 156 #endif
 157
 158 char                    **start_argv;
 159 Atom                    astate;
 160 Atom                    aprot;
 161 Atom                    adelete;
 162 volatile sig_atomic_t   running = 1;
 163 int                     outputs = 0;
 164 int                     (*xerrorxlib)(Display *, XErrorEvent *);
 165 int                     other_wm;
 166 int                     ss_enabled = 0;
 167 int                     xrandr_support;
 168 int                     xrandr_eventbase;
 169 int                     ignore_enter = 0;
 170 unsigned int            numlockmask = 0;
 171 Display                 *display;
 172
 173 int                     cycle_empty = 0;
 174 int                     cycle_visible = 0;
 175 int                     term_width = 0;
 176 int                     font_adjusted = 0;
 177 unsigned int            mod_key = MODKEY;
 178
 179 /* dialog windows */
 180 double                  dialog_ratio = .6;
 181 /* status bar */
 182 #define SWM_BAR_MAX     (256)
 183 char                    *bar_argv[] = { NULL, NULL };
 184 int                     bar_pipe[2];
 185 char                    bar_ext[SWM_BAR_MAX];
 186 char                    bar_vertext[SWM_BAR_MAX];
 187 int                     bar_version = 0;
 188 sig_atomic_t            bar_alarm = 0;
 189 int                     bar_delay = 30;
 190 int                     bar_enabled = 1;
 191 int                     bar_extra = 1;
 192 int                     bar_extra_running = 0;
 193 int                     bar_verbose = 1;
 194 int                     bar_height = 0;
 195 int                     stack_enabled = 1;
 196 int                     clock_enabled = 1;
 197 int                     title_name_enabled = 0;
 198 int                     title_class_enabled = 0;
 199 pid_t                   bar_pid;
 200 GC                      bar_gc;
 201 XGCValues               bar_gcv;
 202 int                     bar_fidx = 0;
 203 XFontStruct             *bar_fs;
 204 char                    *bar_fonts[] = { NULL, NULL, NULL, NULL };/* XXX Make fully dynamic */
 205 char                    *spawn_term[] = { NULL, NULL };         /* XXX Make fully dynamic */
 206
 207 #define SWM_MENU_FN     (2)
 208 #define SWM_MENU_NB     (4)
 209 #define SWM_MENU_NF     (6)
 210 #define SWM_MENU_SB     (8)
 211 #define SWM_MENU_SF     (10)
 212
 213 /* layout manager data */
 214 struct swm_geometry {
 215         int                     x;
 216         int                     y;
 217         int                     w;
 218         int                     h;
 219 };
 220
 221 struct swm_screen;
 222 struct workspace;
 223
 224 /* virtual "screens" */
 225 struct swm_region {
 226         TAILQ_ENTRY(swm_region) entry;
 227         struct swm_geometry     g;
 228         struct workspace        *ws;    /* current workspace on this region */
 229         struct swm_screen       *s;     /* screen idx */
 230         Window                  bar_window;
 231 };
 232 TAILQ_HEAD(swm_region_list, swm_region);
 233
 234 struct ws_win {
 235         TAILQ_ENTRY(ws_win)     entry;
 236         Window                  id;
 237         struct swm_geometry     g;
 238         int                     floating;
 239         int                     transient;
 240         int                     manual;
 241         int                     font_size_boundary[SWM_MAX_FONT_STEPS];
 242         int                     font_steps;
 243         int                     last_inc;
 244         int                     can_delete;
 245         unsigned long           quirks;
 246         struct workspace        *ws;    /* always valid */
 247         struct swm_screen       *s;     /* always valid, never changes */
 248         XWindowAttributes       wa;
 249         XSizeHints              sh;
 250         XClassHint              ch;
 251 };
 252 TAILQ_HEAD(ws_win_list, ws_win);
 253
 254 /* user/key callable function IDs */
 255 enum keyfuncid {
 256         kf_cycle_layout,
 257         kf_stack_reset,
 258         kf_master_shrink,
 259         kf_master_grow,
 260         kf_master_add,
 261         kf_master_del,
 262         kf_stack_inc,
 263         kf_stack_dec,
 264         kf_swap_main,
 265         kf_focus_next,
 266         kf_focus_prev,
 267         kf_swap_next,
 268         kf_swap_prev,
 269         kf_spawn_term,
 270         kf_spawn_menu,
 271         kf_quit,
 272         kf_restart,
 273         kf_focus_main,
 274         kf_ws_1,
 275         kf_ws_2,
 276         kf_ws_3,
 277         kf_ws_4,
 278         kf_ws_5,
 279         kf_ws_6,
 280         kf_ws_7,
 281         kf_ws_8,
 282         kf_ws_9,
 283         kf_ws_10,
 284         kf_ws_next,
 285         kf_ws_prev,
 286         kf_screen_next,
 287         kf_screen_prev,
 288         kf_mvws_1,
 289         kf_mvws_2,
 290         kf_mvws_3,
 291         kf_mvws_4,
 292         kf_mvws_5,
 293         kf_mvws_6,
 294         kf_mvws_7,
 295         kf_mvws_8,
 296         kf_mvws_9,
 297         kf_mvws_10,
 298         kf_bar_toggle,
 299         kf_wind_kill,
 300         kf_wind_del,
 301         kf_screenshot_all,
 302         kf_screenshot_wind,
 303         kf_float_toggle,
 304         kf_version,
 305         kf_spawn_lock,
 306         kf_spawn_initscr,
 307         kf_spawn_custom,
 308         kf_invalid
 309 };
 310
 311 /* layout handlers */
 312 void    stack(void);
 313 void    vertical_config(struct workspace *, int);
 314 void    vertical_stack(struct workspace *, struct swm_geometry *);
 315 void    horizontal_config(struct workspace *, int);
 316 void    horizontal_stack(struct workspace *, struct swm_geometry *);
 317 void    max_stack(struct workspace *, struct swm_geometry *);
 318
 319 void    grabbuttons(struct ws_win *, int);
 320 void    new_region(struct swm_screen *, int, int, int, int);
 321
 322 struct layout {
 323         void            (*l_stack)(struct workspace *, struct swm_geometry *);
 324         void            (*l_config)(struct workspace *, int);
 325         u_int32_t       flags;
 326 #define SWM_L_FOCUSPREV         (1<<0)
 327 #define SWM_L_MAPONFOCUS        (1<<1)
 328         char            *name;
 329 } layouts[] =  {
 330         /* stack,               configure */
 331         { vertical_stack,       vertical_config,        0,      "[|]" },
 332         { horizontal_stack,     horizontal_config,      0,      "[-]" },
 333         { max_stack,            NULL,
 334           SWM_L_FOCUSPREV | SWM_L_MAPONFOCUS,                   "[ ]"},
 335         { NULL,                 NULL,                   0},
 336 };
 337
 338 #define SWM_H_SLICE             (32)
 339 #define SWM_V_SLICE             (32)
 340
 341 /* define work spaces */
 342 struct workspace {
 343         int                     idx;            /* workspace index */
 344         int                     restack;        /* restack on switch */
 345         struct layout           *cur_layout;    /* current layout handlers */
 346         struct ws_win           *focus;         /* may be NULL */
 347         struct ws_win           *focus_prev;    /* may be NULL */
 348         struct swm_region       *r;             /* may be NULL */
 349         struct swm_region       *old_r;         /* may be NULL */
 350         struct ws_win_list      winlist;        /* list of windows in ws */
 351
 352         /* stacker state */
 353         struct {
 354                                 int horizontal_msize;
 355                                 int horizontal_mwin;
 356                                 int horizontal_stacks;
 357                                 int vertical_msize;
 358                                 int vertical_mwin;
 359                                 int vertical_stacks;
 360         } l_state;
 361 };
 362
 363 enum    { SWM_S_COLOR_BAR, SWM_S_COLOR_BAR_BORDER, SWM_S_COLOR_BAR_FONT,
 364           SWM_S_COLOR_FOCUS, SWM_S_COLOR_UNFOCUS, SWM_S_COLOR_MAX };
 365
 366 /* physical screen mapping */
 367 #define SWM_WS_MAX              (10)            /* XXX Too small? */
 368 struct swm_screen {
 369         int                     idx;            /* screen index */
 370         struct swm_region_list  rl;     /* list of regions on this screen */
 371         struct swm_region_list  orl;    /* list of old regions */
 372         Window                  root;
 373         struct workspace        ws[SWM_WS_MAX];
 374
 375         /* colors */
 376         struct {
 377                 unsigned long   color;
 378                 char            *name;
 379         } c[SWM_S_COLOR_MAX];
 380 };
 381 struct swm_screen       *screens;
 382 int                     num_screens;
 383
 384 /* args to functions */
 385 union arg {
 386         int                     id;
 387 #define SWM_ARG_ID_FOCUSNEXT    (0)
 388 #define SWM_ARG_ID_FOCUSPREV    (1)
 389 #define SWM_ARG_ID_FOCUSMAIN    (2)
 390 #define SWM_ARG_ID_SWAPNEXT     (3)
 391 #define SWM_ARG_ID_SWAPPREV     (4)
 392 #define SWM_ARG_ID_SWAPMAIN     (5)
 393 #define SWM_ARG_ID_MASTERSHRINK (6)
 394 #define SWM_ARG_ID_MASTERGROW   (7)
 395 #define SWM_ARG_ID_MASTERADD    (8)
 396 #define SWM_ARG_ID_MASTERDEL    (9)
 397 #define SWM_ARG_ID_STACKRESET   (10)
 398 #define SWM_ARG_ID_STACKINIT    (11)
 399 #define SWM_ARG_ID_CYCLEWS_UP   (12)
 400 #define SWM_ARG_ID_CYCLEWS_DOWN (13)
 401 #define SWM_ARG_ID_CYCLESC_UP   (14)
 402 #define SWM_ARG_ID_CYCLESC_DOWN (15)
 403 #define SWM_ARG_ID_STACKINC     (16)
 404 #define SWM_ARG_ID_STACKDEC     (17)
 405 #define SWM_ARG_ID_SS_ALL       (0)
 406 #define SWM_ARG_ID_SS_WINDOW    (1)
 407 #define SWM_ARG_ID_DONTCENTER   (0)
 408 #define SWM_ARG_ID_CENTER       (1)
 409 #define SWM_ARG_ID_KILLWINDOW   (0)
 410 #define SWM_ARG_ID_DELETEWINDOW (1)
 411         char                    **argv;
 412 };
 413
 414 /* quirks */
 415 struct quirk {
 416         char                    *class;
 417         char                    *name;
 418         unsigned long           quirk;
 419 #define SWM_Q_FLOAT             (1<<0)  /* float this window */
 420 #define SWM_Q_TRANSSZ           (1<<1)  /* transiend window size too small */
 421 #define SWM_Q_ANYWHERE          (1<<2)  /* don't position this window */
 422 #define SWM_Q_XTERM_FONTADJ     (1<<3)  /* adjust xterm fonts when resizing */
 423 #define SWM_Q_FULLSCREEN        (1<<4)  /* remove border */
 424 };
 425 int                             quirks_size = 0, quirks_length = 0;
 426 struct quirk                    *quirks = NULL;
 427
 428 /* events */
 429 #ifdef SWM_DEBUG
 430 void
 431 dumpevent(XEvent *e)
 432 {
 433         char                    *name = NULL;
 434
 435         switch (e->type) {
 436         case KeyPress:
 437                 name = "KeyPress";
 438                 break;
 439         case KeyRelease:
 440                 name = "KeyRelease";
 441                 break;
 442         case ButtonPress:
 443                 name = "ButtonPress";
 444                 break;
 445         case ButtonRelease:
 446                 name = "ButtonRelease";
 447                 break;
 448         case MotionNotify:
 449                 name = "MotionNotify";
 450                 break;
 451         case EnterNotify:
 452                 name = "EnterNotify";
 453                 break;
 454         case LeaveNotify:
 455                 name = "LeaveNotify";
 456                 break;
 457         case FocusIn:
 458                 name = "FocusIn";
 459                 break;
 460         case FocusOut:
 461                 name = "FocusOut";
 462                 break;
 463         case KeymapNotify:
 464                 name = "KeymapNotify";
 465                 break;
 466         case Expose:
 467                 name = "Expose";
 468                 break;
 469         case GraphicsExpose:
 470                 name = "GraphicsExpose";
 471                 break;
 472         case NoExpose:
 473                 name = "NoExpose";
 474                 break;
 475         case VisibilityNotify:
 476                 name = "VisibilityNotify";
 477                 break;
 478         case CreateNotify:
 479                 name = "CreateNotify";
 480                 break;
 481         case DestroyNotify:
 482                 name = "DestroyNotify";
 483                 break;
 484         case UnmapNotify:
 485                 name = "UnmapNotify";
 486                 break;
 487         case MapNotify:
 488                 name = "MapNotify";
 489                 break;
 490         case MapRequest:
 491                 name = "MapRequest";
 492                 break;
 493         case ReparentNotify:
 494                 name = "ReparentNotify";
 495                 break;
 496         case ConfigureNotify:
 497                 name = "ConfigureNotify";
 498                 break;
 499         case ConfigureRequest:
 500                 name = "ConfigureRequest";
 501                 break;
 502         case GravityNotify:
 503                 name = "GravityNotify";
 504                 break;
 505         case ResizeRequest:
 506                 name = "ResizeRequest";
 507                 break;
 508         case CirculateNotify:
 509                 name = "CirculateNotify";
 510                 break;
 511         case CirculateRequest:
 512                 name = "CirculateRequest";
 513                 break;
 514         case PropertyNotify:
 515                 name = "PropertyNotify";
 516                 break;
 517         case SelectionClear:
 518                 name = "SelectionClear";
 519                 break;
 520         case SelectionRequest:
 521                 name = "SelectionRequest";
 522                 break;
 523         case SelectionNotify:
 524                 name = "SelectionNotify";
 525                 break;
 526         case ColormapNotify:
 527                 name = "ColormapNotify";
 528                 break;
 529         case ClientMessage:
 530                 name = "ClientMessage";
 531                 break;
 532         case MappingNotify:
 533                 name = "MappingNotify";
 534                 break;
 535         }
 536
 537         if (name)
 538                 DNPRINTF(SWM_D_EVENTQ ,"window: %lu event: %s (%d), %d "
 539                     "remaining\n",
 540                     e->xany.window, name, e->type, QLength(display));
 541         else
 542                 DNPRINTF(SWM_D_EVENTQ, "window: %lu unknown event %d, %d "
 543                     "remaining\n",
 544                     e->xany.window, e->type, QLength(display));
 545 }
 546 #else
 547 #define dumpevent(e)
 548 #endif /* SWM_DEBUG */
 549
 550 void                    expose(XEvent *);
 551 void                    keypress(XEvent *);
 552 void                    buttonpress(XEvent *);
 553 void                    configurerequest(XEvent *);
 554 void                    configurenotify(XEvent *);
 555 void                    destroynotify(XEvent *);
 556 void                    enternotify(XEvent *);
 557 void                    focusin(XEvent *);
 558 void                    focusout(XEvent *);
 559 void                    mapnotify(XEvent *);
 560 void                    maprequest(XEvent *);
 561 void                    propertynotify(XEvent *);
 562 void                    unmapnotify(XEvent *);
 563 void                    visibilitynotify(XEvent *);
 564
 565 void                    (*handler[LASTEvent])(XEvent *) = {
 566                                 [Expose] = expose,
 567                                 [KeyPress] = keypress,
 568                                 [ButtonPress] = buttonpress,
 569                                 [ConfigureRequest] = configurerequest,
 570                                 [ConfigureNotify] = configurenotify,
 571                                 [DestroyNotify] = destroynotify,
 572                                 [EnterNotify] = enternotify,
 573                                 [FocusIn] = focusin,
 574                                 [FocusOut] = focusout,
 575                                 [MapNotify] = mapnotify,
 576                                 [MapRequest] = maprequest,
 577                                 [PropertyNotify] = propertynotify,
 578                                 [UnmapNotify] = unmapnotify,
 579                                 [VisibilityNotify] = visibilitynotify,
 580 };
 581
 582 void
 583 sighdlr(int sig)
 584 {
 585         pid_t                   pid;
 586
 587         switch (sig) {
 588         case SIGCHLD:
 589                 while ((pid = waitpid(WAIT_ANY, NULL, WNOHANG)) != -1) {
 590                         DNPRINTF(SWM_D_MISC, "reaping: %d\n", pid);
 591                         if (pid <= 0)
 592                                 break;
 593                 }
 594                 break;
 595         case SIGINT:
 596         case SIGTERM:
 597         case SIGHUP:
 598         case SIGQUIT:
 599                 running = 0;
 600                 break;
 601         }
 602 }
 603
 604 void
 605 installsignal(int sig, char *name)
 606 {
 607         struct sigaction        sa;
 608
 609         sa.sa_handler = sighdlr;
 610         sigemptyset(&sa.sa_mask);
 611         sa.sa_flags = 0;
 612         if (sigaction(sig, &sa, NULL) == -1)
 613                 err(1, "could not install %s handler", name);
 614 }
 615
 616 unsigned long
 617 name_to_color(char *colorname)
 618 {
 619         Colormap                cmap;
 620         Status                  status;
 621         XColor                  screen_def, exact_def;
 622         unsigned long           result = 0;
 623         char                    cname[32] = "#";
 624
 625         cmap = DefaultColormap(display, screens[0].idx);
 626         status = XAllocNamedColor(display, cmap, colorname,
 627             &screen_def, &exact_def);
 628         if (!status) {
 629                 strlcat(cname, colorname + 2, sizeof cname - 1);
 630                 status = XAllocNamedColor(display, cmap, cname, &screen_def,
 631                     &exact_def);
 632         }
 633         if (status)
 634                 result = screen_def.pixel;
 635         else
 636                 fprintf(stderr, "color '%s' not found.\n", colorname);
 637
 638         return (result);
 639 }
 640
 641 void
 642 setscreencolor(char *val, int i, int c)
 643 {
 644         if (i > 0 && i <= ScreenCount(display)) {
 645                 screens[i - 1].c[c].color = name_to_color(val);
 646                 free(screens[i - 1].c[c].name);
 647                 if ((screens[i - 1].c[c].name = strdup(val)) == NULL)
 648                         errx(1, "strdup");
 649         } else if (i == -1) {
 650                 for (i = 0; i < ScreenCount(display); i++) {
 651                         screens[i].c[c].color = name_to_color(val);
 652                         free(screens[i].c[c].name);
 653                         if ((screens[i].c[c].name = strdup(val)) == NULL)
 654                                 errx(1, "strdup");
 655                 }
 656         } else
 657                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 658                     i, ScreenCount(display));
 659 }
 660
 661 void
 662 custom_region(char *val)
 663 {
 664         unsigned int                    sidx, x, y, w, h;
 665
 666         if (sscanf(val, "screen[%u]:%ux%u+%u+%u", &sidx, &w, &h, &x, &y) != 5)
 667                 errx(1, "invalid custom region, "
 668                     "should be 'screen[<n>]:<n>x<n>+<n>+<n>\n");
 669         if (sidx < 1 || sidx > ScreenCount(display))
 670                 errx(1, "invalid screen index: %d out of bounds (maximum %d)\n",
 671                     sidx, ScreenCount(display));
 672         sidx--;
 673
 674         if (w < 1 || h < 1)
 675                 errx(1, "region %ux%u+%u+%u too small\n", w, h, x, y);
 676
 677         if (x  < 0 || x > DisplayWidth(display, sidx) ||
 678             y < 0 || y > DisplayHeight(display, sidx) ||
 679             w + x > DisplayWidth(display, sidx) ||
 680             h + y > DisplayHeight(display, sidx))
 681                 errx(1, "region %ux%u+%u+%u not within screen boundaries "
 682                     "(%ux%u)\n", w, h, x, y,
 683                     DisplayWidth(display, sidx), DisplayHeight(display, sidx));
 684
 685         new_region(&screens[sidx], x, y, w, h);
 686 }
 687
 688 void
 689 socket_setnonblock(int fd)
 690 {
 691         int                     flags;
 692
 693         if ((flags = fcntl(fd, F_GETFL, 0)) == -1)
 694                 err(1, "fcntl F_GETFL");
 695         flags |= O_NONBLOCK;
 696         if ((flags = fcntl(fd, F_SETFL, flags)) == -1)
 697                 err(1, "fcntl F_SETFL");
 698 }
 699
 700 void
 701 bar_print(struct swm_region *r, char *s)
 702 {
 703         XClearWindow(display, r->bar_window);
 704         XSetForeground(display, bar_gc, r->s->c[SWM_S_COLOR_BAR_FONT].color);
 705         XDrawString(display, r->bar_window, bar_gc, 4, bar_fs->ascent, s,
 706             strlen(s));
 707 }
 708
 709 void
 710 bar_extra_stop(void)
 711 {
 712         if (bar_pipe[0]) {
 713                 close(bar_pipe[0]);
 714                 bzero(bar_pipe, sizeof bar_pipe);
 715         }
 716         if (bar_pid) {
 717                 kill(bar_pid, SIGTERM);
 718                 bar_pid = 0;
 719         }
 720         strlcpy(bar_ext, "", sizeof bar_ext);
 721         bar_extra = 0;
 722 }
 723
 724 void
 725 bar_class_name(char *s, ssize_t sz, struct ws_win *cur_focus)
 726 {
 727         int                     do_class, do_name;
 728         Status                  status;
 729         XClassHint              *xch = NULL;
 730
 731         if ((title_name_enabled == 1 || title_class_enabled == 1) &&
 732             cur_focus != NULL) {
 733                 if ((xch = XAllocClassHint()) == NULL)
 734                         goto out;
 735                 status = XGetClassHint(display, cur_focus->id, xch);
 736                 if (status == BadWindow || status == BadAlloc)
 737                         goto out;
 738                 do_class = (title_class_enabled && xch->res_class != NULL);
 739                 do_name = (title_name_enabled && xch->res_name != NULL);
 740                 if (do_class)
 741                         strlcat(s, xch->res_class, sz);
 742                 if (do_class && do_name)
 743                         strlcat(s, ":", sz);
 744                 if (do_name)
 745                         strlcat(s, xch->res_name, sz);
 746                 strlcat(s, "    ", sz);
 747         }
 748 out:
 749         if (xch)
 750                 XFree(xch);
 751 }
 752
 753 void
 754 bar_update(void)
 755 {
 756         time_t                  tmt;
 757         struct tm               tm;
 758         struct swm_region       *r;
 759         int                     i, x;
 760         size_t                  len;
 761         char                    s[SWM_BAR_MAX];
 762         char                    loc[SWM_BAR_MAX];
 763         char                    *b;
 764         char                    *stack = "";
 765
 766         if (bar_enabled == 0)
 767                 return;
 768         if (bar_extra && bar_extra_running) {
 769                 /* ignore short reads; it'll correct itself */
 770                 while ((b = fgetln(stdin, &len)) != NULL)
 771                         if (b && b[len - 1] == '\n') {
 772                                 b[len - 1] = '\0';
 773                                 strlcpy(bar_ext, b, sizeof bar_ext);
 774                         }
 775                 if (b == NULL && errno != EAGAIN) {
 776                         fprintf(stderr, "bar_extra failed: errno: %d %s\n",
 777                             errno, strerror(errno));
 778                         bar_extra_stop();
 779                 }
 780         } else
 781                 strlcpy(bar_ext, "", sizeof bar_ext);
 782
 783         if (clock_enabled == 0)
 784                 strlcpy(s, "", sizeof s);
 785         else {
 786                 time(&tmt);
 787                 localtime_r(&tmt, &tm);
 788                 strftime(s, sizeof s, "%a %b %d %R %Z %Y    ", &tm);
 789         }
 790
 791         for (i = 0; i < ScreenCount(display); i++) {
 792                 x = 1;
 793                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 794                         if (r && r->ws)
 795                                 bar_class_name(s, sizeof s, r->ws->focus);
 796
 797                         if (stack_enabled)
 798                                 stack = r->ws->cur_layout->name;
 799
 800                         snprintf(loc, sizeof loc, "%d:%d %s   %s %s    %s",
 801                             x++, r->ws->idx + 1, stack, s, bar_ext,
 802                             bar_vertext);
 803                         bar_print(r, loc);
 804                 }
 805         }
 806         alarm(bar_delay);
 807 }
 808
 809 void
 810 bar_signal(int sig)
 811 {
 812         bar_alarm = 1;
 813 }
 814
 815 void
 816 bar_toggle(struct swm_region *r, union arg *args)
 817 {
 818         struct swm_region       *tmpr;
 819         int                     i, j, sc = ScreenCount(display);
 820
 821         DNPRINTF(SWM_D_MISC, "bar_toggle\n");
 822
 823         if (bar_enabled)
 824                 for (i = 0; i < sc; i++)
 825                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 826                                 XUnmapWindow(display, tmpr->bar_window);
 827         else
 828                 for (i = 0; i < sc; i++)
 829                         TAILQ_FOREACH(tmpr, &screens[i].rl, entry)
 830                                 XMapRaised(display, tmpr->bar_window);
 831
 832         bar_enabled = !bar_enabled;
 833         for (i = 0; i < sc; i++)
 834                 for (j = 0; j < SWM_WS_MAX; j++)
 835                         screens[i].ws[j].restack = 1;
 836
 837         stack();
 838         /* must be after stack */
 839         bar_update();
 840 }
 841
 842 void
 843 bar_refresh(void)
 844 {
 845         XSetWindowAttributes    wa;
 846         struct swm_region       *r;
 847         int                     i;
 848
 849         /* do this here because the conf file is in memory */
 850         if (bar_extra && bar_extra_running == 0 && bar_argv[0]) {
 851                 /* launch external status app */
 852                 bar_extra_running = 1;
 853                 if (pipe(bar_pipe) == -1)
 854                         err(1, "pipe error");
 855                 socket_setnonblock(bar_pipe[0]);
 856                 socket_setnonblock(bar_pipe[1]); /* XXX hmmm, really? */
 857                 if (dup2(bar_pipe[0], 0) == -1)
 858                         errx(1, "dup2");
 859                 if (dup2(bar_pipe[1], 1) == -1)
 860                         errx(1, "dup2");
 861                 if (signal(SIGPIPE, SIG_IGN) == SIG_ERR)
 862                         err(1, "could not disable SIGPIPE");
 863                 switch (bar_pid = fork()) {
 864                 case -1:
 865                         err(1, "cannot fork");
 866                         break;
 867                 case 0: /* child */
 868                         close(bar_pipe[0]);
 869                         execvp(bar_argv[0], bar_argv);
 870                         err(1, "%s external app failed", bar_argv[0]);
 871                         break;
 872                 default: /* parent */
 873                         close(bar_pipe[1]);
 874                         break;
 875                 }
 876         }
 877
 878         bzero(&wa, sizeof wa);
 879         for (i = 0; i < ScreenCount(display); i++)
 880                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
 881                         wa.border_pixel =
 882                             screens[i].c[SWM_S_COLOR_BAR_BORDER].color;
 883                         wa.background_pixel =
 884                             screens[i].c[SWM_S_COLOR_BAR].color;
 885                         XChangeWindowAttributes(display, r->bar_window,
 886                             CWBackPixel | CWBorderPixel, &wa);
 887                 }
 888         bar_update();
 889 }
 890
 891 void
 892 bar_setup(struct swm_region *r)
 893 {
 894         int                     i;
 895
 896         for (i = 0; bar_fonts[i] != NULL; i++) {
 897                 bar_fs = XLoadQueryFont(display, bar_fonts[i]);
 898                 if (bar_fs) {
 899                         bar_fidx = i;
 900                         break;
 901                 }
 902         }
 903         if (bar_fonts[i] == NULL)
 904                         errx(1, "couldn't load font");
 905         bar_height = bar_fs->ascent + bar_fs->descent + 3;
 906
 907         r->bar_window = XCreateSimpleWindow(display,
 908             r->s->root, X(r), Y(r), WIDTH(r) - 2, bar_height - 2,
 909             1, r->s->c[SWM_S_COLOR_BAR_BORDER].color,
 910             r->s->c[SWM_S_COLOR_BAR].color);
 911         bar_gc = XCreateGC(display, r->bar_window, 0, &bar_gcv);
 912         XSetFont(display, bar_gc, bar_fs->fid);
 913         XSelectInput(display, r->bar_window, VisibilityChangeMask);
 914         if (bar_enabled)
 915                 XMapRaised(display, r->bar_window);
 916         DNPRINTF(SWM_D_MISC, "bar_setup: bar_window %lu\n", r->bar_window);
 917
 918         if (signal(SIGALRM, bar_signal) == SIG_ERR)
 919                 err(1, "could not install bar_signal");
 920         bar_refresh();
 921 }
 922
 923 void
 924 set_win_state(struct ws_win *win, long state)
 925 {
 926         long                    data[] = {state, None};
 927
 928         DNPRINTF(SWM_D_EVENT, "set_win_state: window: %lu\n", win->id);
 929
 930         XChangeProperty(display, win->id, astate, astate, 32, PropModeReplace,
 931             (unsigned char *)data, 2);
 932 }
 933
 934 long
 935 getstate(Window w)
 936 {
 937         int                     format, status;
 938         long                    result = -1;
 939         unsigned char           *p = NULL;
 940         unsigned long           n, extra;
 941         Atom                    real;
 942
 943         status = XGetWindowProperty(display, w, astate, 0L, 2L, False, astate,
 944             &real, &format, &n, &extra, (unsigned char **)&p);
 945         if (status != Success)
 946                 return (-1);
 947         if (n != 0)
 948                 result = *((long *)p);
 949         XFree(p);
 950         return (result);
 951 }
 952
 953 void
 954 version(struct swm_region *r, union arg *args)
 955 {
 956         bar_version = !bar_version;
 957         if (bar_version)
 958                 snprintf(bar_vertext, sizeof bar_vertext, "Version: %s CVS: %s",
 959                     SWM_VERSION, cvstag);
 960         else
 961                 strlcpy(bar_vertext, "", sizeof bar_vertext);
 962         bar_update();
 963 }
 964
 965 void
 966 client_msg(struct ws_win *win, Atom a)
 967 {
 968         XClientMessageEvent     cm;
 969
 970         bzero(&cm, sizeof cm);
 971         cm.type = ClientMessage;
 972         cm.window = win->id;
 973         cm.message_type = aprot;
 974         cm.format = 32;
 975         cm.data.l[0] = a;
 976         cm.data.l[1] = CurrentTime;
 977         XSendEvent(display, win->id, False, 0L, (XEvent *)&cm);
 978 }
 979
 980 void
 981 config_win(struct ws_win *win)
 982 {
 983         XConfigureEvent         ce;
 984
 985         DNPRINTF(SWM_D_MISC, "config_win: win %lu x %d y %d w %d h %d\n",
 986             win->id, win->g.x, win->g.y, win->g.w, win->g.h);
 987         ce.type = ConfigureNotify;
 988         ce.display = display;
 989         ce.event = win->id;
 990         ce.window = win->id;
 991         ce.x = win->g.x;
 992         ce.y = win->g.y;
 993         ce.width = win->g.w;
 994         ce.height = win->g.h;
 995         ce.border_width = 1; /* XXX store this! */
 996         ce.above = None;
 997         ce.override_redirect = False;
 998         XSendEvent(display, win->id, False, StructureNotifyMask, (XEvent *)&ce);
 999 }
1000
1001 int
1002 count_win(struct workspace *ws, int count_transient)
1003 {
1004         struct ws_win           *win;
1005         int                     count = 0;
1006
1007         TAILQ_FOREACH(win, &ws->winlist, entry) {
1008                 if (count_transient == 0 && win->floating)
1009                         continue;
1010                 if (count_transient == 0 && win->transient)
1011                         continue;
1012                 count++;
1013         }
1014         DNPRINTF(SWM_D_MISC, "count_win: %d\n", count);
1015
1016         return (count);
1017 }
1018
1019 void
1020 quit(struct swm_region *r, union arg *args)
1021 {
1022         DNPRINTF(SWM_D_MISC, "quit\n");
1023         running = 0;
1024 }
1025
1026 void
1027 unmap_window(struct ws_win *win)
1028 {
1029         if (win == NULL)
1030                 return;
1031
1032         set_win_state(win, IconicState);
1033         XUnmapWindow(display, win->id);
1034 }
1035
1036 void
1037 unmap_all(void)
1038 {
1039         struct ws_win           *win;
1040         int                     i, j;
1041
1042         for (i = 0; i < ScreenCount(display); i++)
1043                 for (j = 0; j < SWM_WS_MAX; j++)
1044                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1045                                 unmap_window(win);
1046 }
1047
1048 void
1049 fake_keypress(struct ws_win *win, int keysym, int modifiers)
1050 {
1051         XKeyEvent event;
1052
1053         event.display = display;        /* Ignored, but what the hell */
1054         event.window = win->id;
1055         event.root = win->s->root;
1056         event.subwindow = None;
1057         event.time = CurrentTime;
1058         event.x = win->g.x;
1059         event.y = win->g.y;
1060         event.x_root = 1;
1061         event.y_root = 1;
1062         event.same_screen = True;
1063         event.keycode = XKeysymToKeycode(display, keysym);
1064         event.state = modifiers;
1065
1066         event.type = KeyPress;
1067         XSendEvent(event.display, event.window, True,
1068             KeyPressMask, (XEvent *)&event);
1069
1070         event.type = KeyRelease;
1071         XSendEvent(event.display, event.window, True,
1072             KeyPressMask, (XEvent *)&event);
1073
1074 }
1075
1076 void
1077 restart(struct swm_region *r, union arg *args)
1078 {
1079         DNPRINTF(SWM_D_MISC, "restart: %s\n", start_argv[0]);
1080
1081         /* disable alarm because the following code may not be interrupted */
1082         alarm(0);
1083         if (signal(SIGALRM, SIG_IGN) == SIG_ERR)
1084                 errx(1, "can't disable alarm");
1085
1086         bar_extra_stop();
1087         bar_extra = 1;
1088         unmap_all();
1089         XCloseDisplay(display);
1090         execvp(start_argv[0], start_argv);
1091         fprintf(stderr, "execvp failed\n");
1092         perror(" failed");
1093         quit(NULL, NULL);
1094 }
1095
1096 struct swm_region *
1097 root_to_region(Window root)
1098 {
1099         struct swm_region       *r = NULL;
1100         Window                  rr, cr;
1101         int                     i, x, y, wx, wy;
1102         unsigned int            mask;
1103
1104         for (i = 0; i < ScreenCount(display); i++)
1105                 if (screens[i].root == root)
1106                         break;
1107
1108         if (XQueryPointer(display, screens[i].root,
1109             &rr, &cr, &x, &y, &wx, &wy, &mask) != False) {
1110                 /* choose a region based on pointer location */
1111                 TAILQ_FOREACH(r, &screens[i].rl, entry)
1112                         if (x >= X(r) && x <= X(r) + WIDTH(r) &&
1113                             y >= Y(r) && y <= Y(r) + HEIGHT(r))
1114                                 break;
1115         }
1116
1117         if (r == NULL)
1118                 r = TAILQ_FIRST(&screens[i].rl);
1119
1120         return (r);
1121 }
1122
1123 struct ws_win *
1124 find_window(Window id)
1125 {
1126         struct ws_win           *win;
1127         int                     i, j;
1128
1129         for (i = 0; i < ScreenCount(display); i++)
1130                 for (j = 0; j < SWM_WS_MAX; j++)
1131                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1132                                 if (id == win->id)
1133                                         return (win);
1134         return (NULL);
1135 }
1136
1137 void
1138 spawn(struct swm_region *r, union arg *args)
1139 {
1140         char                    *ret;
1141         int                     si;
1142
1143         DNPRINTF(SWM_D_MISC, "spawn: %s\n", args->argv[0]);
1144         /*
1145          * The double-fork construct avoids zombie processes and keeps the code
1146          * clean from stupid signal handlers.
1147          */
1148         if (fork() == 0) {
1149                 if (fork() == 0) {
1150                         if (display)
1151                                 close(ConnectionNumber(display));
1152                         setenv("LD_PRELOAD", SWM_LIB, 1);
1153                         if (asprintf(&ret, "%d", r->ws->idx)) {
1154                                 setenv("_SWM_WS", ret, 1);
1155                                 free(ret);
1156                         }
1157                         if (asprintf(&ret, "%d", getpid())) {
1158                                 setenv("_SWM_PID", ret, 1);
1159                                 free(ret);
1160                         }
1161                         setsid();
1162                         /* kill stdin, mplayer, ssh-add etc. need that */
1163                         si = open("/dev/null", O_RDONLY, 0);
1164                         if (si == -1)
1165                                 err(1, "open /dev/null");
1166                         if (dup2(si, 0) == -1)
1167                                 err(1, "dup2 /dev/null");
1168                         execvp(args->argv[0], args->argv);
1169                         fprintf(stderr, "execvp failed\n");
1170                         perror(" failed");
1171                 }
1172                 exit(0);
1173         }
1174         wait(0);
1175 }
1176
1177 void
1178 spawnterm(struct swm_region *r, union arg *args)
1179 {
1180         DNPRINTF(SWM_D_MISC, "spawnterm\n");
1181
1182         if (term_width)
1183                 setenv("_SWM_XTERM_FONTADJ", "", 1);
1184         spawn(r, args);
1185 }
1186
1187 void
1188 unfocus_win(struct ws_win *win)
1189 {
1190         if (win == NULL)
1191                 return;
1192
1193         if (win->ws->r == NULL)
1194                 return;
1195
1196         grabbuttons(win, 0);
1197         XSetWindowBorder(display, win->id,
1198             win->ws->r->s->c[SWM_S_COLOR_UNFOCUS].color);
1199
1200         if (win->ws->focus == win) {
1201                 win->ws->focus = NULL;
1202                 win->ws->focus_prev = win;
1203         }
1204 }
1205
1206 void
1207 unfocus_all(void)
1208 {
1209         struct ws_win           *win;
1210         int                     i, j;
1211
1212         DNPRINTF(SWM_D_FOCUS, "unfocus_all:\n");
1213
1214         for (i = 0; i < ScreenCount(display); i++)
1215                 for (j = 0; j < SWM_WS_MAX; j++)
1216                         TAILQ_FOREACH(win, &screens[i].ws[j].winlist, entry)
1217                                 unfocus_win(win);
1218         XSync(display, False);
1219 }
1220
1221 void
1222 focus_win(struct ws_win *win)
1223 {
1224         DNPRINTF(SWM_D_FOCUS, "focus_win: id: %lu\n", win ? win->id : 0);
1225
1226         if (win == NULL)
1227                 return;
1228
1229         /* use big hammer to make sure it works under all use cases */
1230         unfocus_all();
1231         win->ws->focus = win;
1232
1233         if (win->ws->r != NULL) {
1234                 XSetWindowBorder(display, win->id,
1235                     win->ws->r->s->c[SWM_S_COLOR_FOCUS].color);
1236                 grabbuttons(win, 1);
1237                 if (win->ws->cur_layout->flags & SWM_L_MAPONFOCUS)
1238                         XMapRaised(display, win->id);
1239                 XSetInputFocus(display, win->id,
1240                     RevertToPointerRoot, CurrentTime);
1241                 XSync(display, False);
1242         }
1243 }
1244
1245 void
1246 switchws(struct swm_region *r, union arg *args)
1247 {
1248         int                     wsid = args->id;
1249         struct swm_region       *this_r, *other_r;
1250         struct ws_win           *win, *winfocus = NULL;
1251         struct workspace        *new_ws, *old_ws;
1252
1253         this_r = r;
1254         old_ws = this_r->ws;
1255         new_ws = &this_r->s->ws[wsid];
1256
1257         DNPRINTF(SWM_D_WS, "switchws screen[%d]:%dx%d+%d+%d: "
1258             "%d -> %d\n", r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r),
1259             old_ws->idx, wsid);
1260
1261         if (new_ws == old_ws)
1262                 return;
1263
1264         /* get focus window */
1265         if (new_ws->focus)
1266                 winfocus = new_ws->focus;
1267         else if (new_ws->focus_prev)
1268                 winfocus = new_ws->focus_prev;
1269         else
1270                 winfocus = TAILQ_FIRST(&new_ws->winlist);
1271
1272         other_r = new_ws->r;
1273         if (other_r == NULL) {
1274                 /* if the other workspace is hidden, switch windows */
1275                 if (old_ws->r != NULL)
1276                         old_ws->old_r = old_ws->r;
1277                 old_ws->r = NULL;
1278                 old_ws->restack = 1;
1279
1280                 /*
1281                  * Map new windows first if they were here before
1282                  * to minimize ugly blinking.
1283                  */
1284                 if (new_ws->old_r == this_r)
1285                         TAILQ_FOREACH(win, &new_ws->winlist, entry)
1286                                 if (!(win->ws->cur_layout->flags &
1287                                     SWM_L_MAPONFOCUS))
1288                                         XMapRaised(display, win->id);
1289
1290                 TAILQ_FOREACH(win, &old_ws->winlist, entry)
1291                         unmap_window(win);
1292         } else {
1293                 other_r->ws = old_ws;
1294                 old_ws->r = other_r;
1295         }
1296         this_r->ws = new_ws;
1297         new_ws->r = this_r;
1298
1299         ignore_enter = 1;
1300         stack();
1301         focus_win(winfocus);
1302         bar_update();
1303 }
1304
1305 void
1306 cyclews(struct swm_region *r, union arg *args)
1307 {
1308         union                   arg a;
1309         struct swm_screen       *s = r->s;
1310
1311         DNPRINTF(SWM_D_WS, "cyclews id %d "
1312             "in screen[%d]:%dx%d+%d+%d ws %d\n", args->id,
1313             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1314
1315         a.id = r->ws->idx;
1316         do {
1317                 switch (args->id) {
1318                 case SWM_ARG_ID_CYCLEWS_UP:
1319                         if (a.id < SWM_WS_MAX - 1)
1320                                 a.id++;
1321                         else
1322                                 a.id = 0;
1323                         break;
1324                 case SWM_ARG_ID_CYCLEWS_DOWN:
1325                         if (a.id > 0)
1326                                 a.id--;
1327                         else
1328                                 a.id = SWM_WS_MAX - 1;
1329                         break;
1330                 default:
1331                         return;
1332                 };
1333
1334                 if (cycle_empty == 0 && TAILQ_EMPTY(&s->ws[a.id].winlist))
1335                         continue;
1336                 if (cycle_visible == 0 && s->ws[a.id].r != NULL)
1337                         continue;
1338
1339                 switchws(r, &a);
1340         } while (a.id != r->ws->idx);
1341 }
1342
1343 void
1344 cyclescr(struct swm_region *r, union arg *args)
1345 {
1346         struct swm_region       *rr;
1347         int                     i;
1348
1349         /* do nothing if we don't have more than one screen */
1350         if (!(ScreenCount(display) > 1 || outputs > 1))
1351                 return;
1352
1353         i = r->s->idx;
1354         switch (args->id) {
1355         case SWM_ARG_ID_CYCLESC_UP:
1356                 rr = TAILQ_NEXT(r, entry);
1357                 if (rr == NULL)
1358                         rr = TAILQ_FIRST(&screens[i].rl);
1359                 break;
1360         case SWM_ARG_ID_CYCLESC_DOWN:
1361                 rr = TAILQ_PREV(r, swm_region_list, entry);
1362                 if (rr == NULL)
1363                         rr = TAILQ_LAST(&screens[i].rl, swm_region_list);
1364                 break;
1365         default:
1366                 return;
1367         };
1368         unfocus_all();
1369         XSetInputFocus(display, PointerRoot, RevertToPointerRoot, CurrentTime);
1370         XWarpPointer(display, None, rr->s[i].root, 0, 0, 0, 0, rr->g.x + 1,
1371             rr->g.y + bar_enabled + 1 ? bar_height : 0);
1372 }
1373
1374 void
1375 swapwin(struct swm_region *r, union arg *args)
1376 {
1377         struct ws_win           *target, *source;
1378         struct ws_win           *cur_focus;
1379         struct ws_win_list      *wl;
1380
1381
1382         DNPRINTF(SWM_D_WS, "swapwin id %d "
1383             "in screen %d region %dx%d+%d+%d ws %d\n", args->id,
1384             r->s->idx, WIDTH(r), HEIGHT(r), X(r), Y(r), r->ws->idx);
1385
1386         cur_focus = r->ws->focus;
1387         if (cur_focus == NULL)
1388                 return;
1389
1390         source = cur_focus;
1391         wl = &source->ws->winlist;
1392
1393         switch (args->id) {
1394         case SWM_ARG_ID_SWAPPREV:
1395                 target = TAILQ_PREV(source, ws_win_list, entry);
1396                 TAILQ_REMOVE(wl, cur_focus, entry);
1397                 if (target == NULL)
1398                         TAILQ_INSERT_TAIL(wl, source, entry);
1399                 else
1400                         TAILQ_INSERT_BEFORE(target, source, entry);
1401                 break;
1402         case SWM_ARG_ID_SWAPNEXT:
1403                 target = TAILQ_NEXT(source, entry);
1404                 TAILQ_REMOVE(wl, source, entry);
1405                 if (target == NULL)
1406                         TAILQ_INSERT_HEAD(wl, source, entry);
1407                 else
1408                         TAILQ_INSERT_AFTER(wl, target, source, entry);
1409                 break;
1410         case SWM_ARG_ID_SWAPMAIN:
1411                 target = TAILQ_FIRST(wl);
1412                 if (target == source) {
1413                         if (source->ws->focus_prev != NULL &&
1414                             source->ws->focus_prev != target)
1415
1416                                 source = source->ws->focus_prev;
1417                         else
1418                                 return;
1419                 }
1420                 source->ws->focus_prev = target;
1421                 TAILQ_REMOVE(wl, target, entry);
1422                 TAILQ_INSERT_BEFORE(source, target, entry);
1423                 TAILQ_REMOVE(wl, source, entry);
1424                 TAILQ_INSERT_HEAD(wl, source, entry);
1425                 break;
1426         default:
1427                 DNPRINTF(SWM_D_MOVE, "invalid id: %d\n", args->id);
1428                 return;
1429         }
1430
1431         ignore_enter = 1;
1432         stack();
1433 }
1434
1435 void
1436 focus(struct swm_region *r, union arg *args)
1437 {
1438         struct ws_win           *winfocus, *winlostfocus;
1439         struct ws_win_list      *wl;
1440         struct ws_win           *cur_focus;
1441
1442         DNPRINTF(SWM_D_FOCUS, "focus: id %d\n", args->id);
1443
1444         cur_focus = r->ws->focus;
1445         if (cur_focus == NULL)
1446                 return;
1447
1448         wl = &cur_focus->ws->winlist;
1449
1450         winlostfocus = cur_focus;
1451
1452         switch (args->id) {
1453         case SWM_ARG_ID_FOCUSPREV:
1454                 winfocus = TAILQ_PREV(cur_focus, ws_win_list, entry);
1455                 if (winfocus == NULL)
1456                         winfocus = TAILQ_LAST(wl, ws_win_list);
1457                 break;
1458
1459         case SWM_ARG_ID_FOCUSNEXT:
1460                 winfocus = TAILQ_NEXT(cur_focus, entry);
1461                 if (winfocus == NULL)
1462                         winfocus = TAILQ_FIRST(wl);
1463                 break;
1464
1465         case SWM_ARG_ID_FOCUSMAIN:
1466                 winfocus = TAILQ_FIRST(wl);
1467                 if (winfocus == cur_focus)
1468                         winfocus = cur_focus->ws->focus_prev;
1469                 if (winfocus == NULL)
1470                         return;
1471                 break;
1472
1473         default:
1474                 return;
1475         }
1476
1477         if (winfocus == winlostfocus || winfocus == NULL)
1478                 return;
1479
1480         focus_win(winfocus);
1481 }
1482
1483 void
1484 cycle_layout(struct swm_region *r, union arg *args)
1485 {
1486         struct workspace        *ws = r->ws;
1487         struct ws_win           *winfocus;
1488
1489         DNPRINTF(SWM_D_EVENT, "cycle_layout: workspace: %d\n", ws->idx);
1490
1491         winfocus = ws->focus;
1492
1493         ws->cur_layout++;
1494         if (ws->cur_layout->l_stack == NULL)
1495                 ws->cur_layout = &layouts[0];
1496
1497         ignore_enter = 1;
1498         stack();
1499         focus_win(winfocus);
1500         ignore_enter = 0;
1501 }
1502
1503 void
1504 stack_config(struct swm_region *r, union arg *args)
1505 {
1506         struct workspace        *ws = r->ws;
1507
1508         DNPRINTF(SWM_D_STACK, "stack_config for workspace %d (id %d\n",
1509             args->id, ws->idx);
1510
1511         if (ws->cur_layout->l_config != NULL)
1512                 ws->cur_layout->l_config(ws, args->id);
1513
1514         if (args->id != SWM_ARG_ID_STACKINIT);
1515                 stack();
1516 }
1517
1518 void
1519 stack(void) {
1520         struct swm_geometry     g;
1521         struct swm_region       *r;
1522         int                     i, j;
1523
1524         DNPRINTF(SWM_D_STACK, "stack\n");
1525
1526         for (i = 0; i < ScreenCount(display); i++) {
1527                 j = 0;
1528                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
1529                         DNPRINTF(SWM_D_STACK, "stacking workspace %d "
1530                             "(screen %d, region %d)\n", r->ws->idx, i, j++);
1531
1532                         /* start with screen geometry, adjust for bar */
1533                         g = r->g;
1534                         g.w -= 2;
1535                         g.h -= 2;
1536                         if (bar_enabled) {
1537                                 g.y += bar_height;
1538                                 g.h -= bar_height;
1539                         }
1540
1541                         r->ws->restack = 0;
1542                         r->ws->cur_layout->l_stack(r->ws, &g);
1543                 }
1544         }
1545         if (font_adjusted)
1546                 font_adjusted--;
1547         XSync(display, False);
1548 }
1549
1550 void
1551 stack_floater(struct ws_win *win, struct swm_region *r)
1552 {
1553         unsigned int            mask;
1554         XWindowChanges          wc;
1555
1556         if (win == NULL)
1557                 return;
1558
1559         bzero(&wc, sizeof wc);
1560         mask = CWX | CWY | CWBorderWidth | CWWidth | CWHeight;
1561         if ((win->quirks & SWM_Q_FULLSCREEN) && (win->g.w == WIDTH(r)) &&
1562             (win->g.h == HEIGHT(r)))
1563                 wc.border_width = 0;
1564         else
1565                 wc.border_width = 1;
1566         if (win->transient && (win->quirks & SWM_Q_TRANSSZ)) {
1567                 win->g.w = (double)WIDTH(r) * dialog_ratio;
1568                 win->g.h = (double)HEIGHT(r) * dialog_ratio;
1569         }
1570         wc.width = win->g.w;
1571         wc.height = win->g.h;
1572         if (win->manual) {
1573                 wc.x = win->g.x;
1574                 wc.y = win->g.y;
1575         } else {
1576                 wc.x = (WIDTH(r) - win->g.w) / 2;
1577                 wc.y = (HEIGHT(r) - win->g.h) / 2;
1578         }
1579
1580         /* adjust for region */
1581         wc.x += r->g.x;
1582         wc.y += r->g.y;
1583
1584         DNPRINTF(SWM_D_STACK, "stack_floater: win %lu x %d y %d w %d h %d\n",
1585             win->id, wc.x, wc.y, wc.width, wc.height);
1586
1587         XConfigureWindow(display, win->id, mask, &wc);
1588 }
1589
1590 /*
1591  * Send keystrokes to terminal to decrease/increase the font size as the
1592  * window size changes.
1593  */
1594 void
1595 adjust_font(struct ws_win *win)
1596 {
1597         if (!(win->quirks & SWM_Q_XTERM_FONTADJ) ||
1598             win->floating || win->transient)
1599                 return;
1600
1601         if (win->sh.width_inc && win->last_inc != win->sh.width_inc &&
1602             win->g.w / win->sh.width_inc < term_width &&
1603             win->font_steps < SWM_MAX_FONT_STEPS) {
1604                 win->font_size_boundary[win->font_steps] =
1605                     (win->sh.width_inc * term_width) + win->sh.base_width;
1606                 win->font_steps++;
1607                 font_adjusted++;
1608                 win->last_inc = win->sh.width_inc;
1609                 fake_keypress(win, XK_KP_Subtract, ShiftMask);
1610         } else if (win->font_steps && win->last_inc != win->sh.width_inc &&
1611             win->g.w > win->font_size_boundary[win->font_steps - 1]) {
1612                 win->font_steps--;
1613                 font_adjusted++;
1614                 win->last_inc = win->sh.width_inc;
1615                 fake_keypress(win, XK_KP_Add, ShiftMask);
1616         }
1617 }
1618
1619 #define SWAPXY(g)       do {                            \
1620         int tmp;                                        \
1621         tmp = (g)->y; (g)->y = (g)->x; (g)->x = tmp;    \
1622         tmp = (g)->h; (g)->h = (g)->w; (g)->w = tmp;    \
1623 } while (0)
1624 void
1625 stack_master(struct workspace *ws, struct swm_geometry *g, int rot, int flip)
1626 {
1627         XWindowChanges          wc;
1628         struct swm_geometry     win_g, r_g = *g;
1629         struct ws_win           *win;
1630         int                     i, j, s, stacks;
1631         int                     w_inc = 1, h_inc, w_base = 1, h_base;
1632         int                     hrh, extra = 0, h_slice, last_h = 0;
1633         int                     split, colno, winno, mwin, msize, mscale;
1634         int                     remain, missing, v_slice;
1635         unsigned int            mask;
1636
1637         DNPRINTF(SWM_D_STACK, "stack_master: workspace: %d\n rot=%s flip=%s",
1638             ws->idx, rot ? "yes" : "no", flip ? "yes" : "no");
1639
1640         winno = count_win(ws, 0);
1641         if (winno == 0 && count_win(ws, 1) == 0)
1642                 return;
1643
1644         TAILQ_FOREACH(win, &ws->winlist, entry)
1645                 if (win->transient == 0 && win->floating == 0)
1646                         break;
1647
1648         if (win == NULL)
1649                 goto notiles;
1650
1651         if (rot) {
1652                 w_inc = win->sh.width_inc;
1653                 w_base = win->sh.base_width;
1654                 mwin = ws->l_state.horizontal_mwin;
1655                 mscale = ws->l_state.horizontal_msize;
1656                 stacks = ws->l_state.horizontal_stacks;
1657                 SWAPXY(&r_g);
1658         } else {
1659                 w_inc = win->sh.height_inc;
1660                 w_base = win->sh.base_height;
1661                 mwin = ws->l_state.vertical_mwin;
1662                 mscale = ws->l_state.vertical_msize;
1663                 stacks = ws->l_state.vertical_stacks;
1664         }
1665         win_g = r_g;
1666
1667         if (stacks > winno - mwin)
1668                 stacks = winno - mwin;
1669         if (stacks < 1)
1670                 stacks = 1;
1671
1672         h_slice = r_g.h / SWM_H_SLICE;
1673         if (mwin && winno > mwin) {
1674                 v_slice = r_g.w / SWM_V_SLICE;
1675
1676                 split = mwin;
1677                 colno = split;
1678                 win_g.w = v_slice * mscale;
1679
1680                 if (w_inc > 1 && w_inc < v_slice) {
1681                         /* adjust for window's requested size increment */
1682                         remain = (win_g.w - w_base) % w_inc;
1683                         missing = w_inc - remain;
1684                         win_g.w -= remain;
1685                         extra += remain;
1686                 }
1687
1688                 msize = win_g.w;
1689                 if (flip)
1690                         win_g.x += r_g.w - msize;
1691         } else {
1692                 msize = -2;
1693                 colno = split = winno / stacks;
1694                 win_g.w = ((r_g.w - (stacks * 2) + 2) / stacks);
1695         }
1696         hrh = r_g.h / colno;
1697         extra = r_g.h - (colno * hrh);
1698         win_g.h = hrh - 2;
1699
1700         /*  stack all the tiled windows */
1701         i = j = 0, s = stacks;
1702         TAILQ_FOREACH(win, &ws->winlist, entry) {
1703                 if (win->transient != 0 || win->floating != 0)
1704                         continue;
1705
1706                 if (split && i == split) {
1707                         colno = (winno - mwin) / stacks;
1708                         if (s <= (winno - mwin) % stacks)
1709                                 colno++;
1710                         split = split + colno;
1711                         hrh = (r_g.h / colno);
1712                         extra = r_g.h - (colno * hrh);
1713                         if (flip)
1714                                 win_g.x = r_g.x;
1715                         else
1716                                 win_g.x += win_g.w + 2;
1717                         win_g.w = (r_g.w - msize - (stacks * 2)) / stacks;
1718                         if (s == 1)
1719                                 win_g.w += (r_g.w - msize - (stacks * 2)) %
1720                                     stacks;
1721                         s--;
1722                         j = 0;
1723                 }
1724                 win_g.h = hrh - 2;
1725                 if (rot) {
1726                         h_inc = win->sh.width_inc;
1727                         h_base = win->sh.base_width;
1728                 } else {
1729                         h_inc = win->sh.height_inc;
1730                         h_base = win->sh.base_height;
1731                 }
1732                 if (j == colno - 1) {
1733                         win_g.h = hrh + extra;
1734                 } else if (h_inc > 1 && h_inc < h_slice) {
1735                         /* adjust for window's requested size increment */
1736                         remain = (win_g.h - h_base) % h_inc;
1737                         missing = h_inc - remain;
1738
1739                         if (missing <= extra || j == 0) {
1740                                 extra -= missing;
1741                                 win_g.h += missing;
1742                         } else {
1743                                 win_g.h -= remain;
1744                                 extra += remain;
1745                         }
1746                 }
1747
1748                 if (j == 0)
1749                         win_g.y = r_g.y;
1750                 else
1751                         win_g.y += last_h + 2;
1752
1753                 bzero(&wc, sizeof wc);
1754                 wc.border_width = 1;
1755                 if (rot) {
1756                         win->g.x = wc.x = win_g.y;
1757                         win->g.y = wc.y = win_g.x;
1758                         win->g.w = wc.width = win_g.h;
1759                         win->g.h = wc.height = win_g.w;
1760                 } else {
1761                         win->g.x = wc.x = win_g.x;
1762                         win->g.y = wc.y = win_g.y;
1763                         win->g.w = wc.width = win_g.w;
1764                         win->g.h = wc.height = win_g.h;
1765                 }
1766                 adjust_font(win);
1767                 mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1768                 XConfigureWindow(display, win->id, mask, &wc);
1769                 XMapRaised(display, win->id);
1770
1771                 last_h = win_g.h;
1772                 i++;
1773                 j++;
1774         }
1775
1776  notiles:
1777         /* now, stack all the floaters and transients */
1778         TAILQ_FOREACH(win, &ws->winlist, entry) {
1779                 if (win->transient == 0 && win->floating == 0)
1780                         continue;
1781
1782                 stack_floater(win, ws->r);
1783                 XMapRaised(display, win->id);
1784         }
1785 }
1786
1787 void
1788 vertical_config(struct workspace *ws, int id)
1789 {
1790         DNPRINTF(SWM_D_STACK, "vertical_resize: workspace: %d\n", ws->idx);
1791
1792         switch (id) {
1793         case SWM_ARG_ID_STACKRESET:
1794         case SWM_ARG_ID_STACKINIT:
1795                 ws->l_state.vertical_msize = SWM_V_SLICE / 2;
1796                 ws->l_state.vertical_mwin = 1;
1797                 ws->l_state.vertical_stacks = 1;
1798                 break;
1799         case SWM_ARG_ID_MASTERSHRINK:
1800                 if (ws->l_state.vertical_msize > 1)
1801                         ws->l_state.vertical_msize--;
1802                 break;
1803         case SWM_ARG_ID_MASTERGROW:
1804                 if (ws->l_state.vertical_msize < SWM_V_SLICE - 1)
1805                         ws->l_state.vertical_msize++;
1806                 break;
1807         case SWM_ARG_ID_MASTERADD:
1808                 ws->l_state.vertical_mwin++;
1809                 break;
1810         case SWM_ARG_ID_MASTERDEL:
1811                 if (ws->l_state.vertical_mwin > 0)
1812                         ws->l_state.vertical_mwin--;
1813                 break;
1814         case SWM_ARG_ID_STACKINC:
1815                 ws->l_state.vertical_stacks++;
1816                 break;
1817         case SWM_ARG_ID_STACKDEC:
1818                 if (ws->l_state.vertical_stacks > 1)
1819                         ws->l_state.vertical_stacks--;
1820                 break;
1821         default:
1822                 return;
1823         }
1824 }
1825
1826 void
1827 vertical_stack(struct workspace *ws, struct swm_geometry *g)
1828 {
1829         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1830
1831         stack_master(ws, g, 0, 0);
1832 }
1833
1834 void
1835 horizontal_config(struct workspace *ws, int id)
1836 {
1837         DNPRINTF(SWM_D_STACK, "horizontal_config: workspace: %d\n", ws->idx);
1838
1839         switch (id) {
1840         case SWM_ARG_ID_STACKRESET:
1841         case SWM_ARG_ID_STACKINIT:
1842                 ws->l_state.horizontal_mwin = 1;
1843                 ws->l_state.horizontal_msize = SWM_H_SLICE / 2;
1844                 ws->l_state.horizontal_stacks = 1;
1845                 break;
1846         case SWM_ARG_ID_MASTERSHRINK:
1847                 if (ws->l_state.horizontal_msize > 1)
1848                         ws->l_state.horizontal_msize--;
1849                 break;
1850         case SWM_ARG_ID_MASTERGROW:
1851                 if (ws->l_state.horizontal_msize < SWM_H_SLICE - 1)
1852                         ws->l_state.horizontal_msize++;
1853                 break;
1854         case SWM_ARG_ID_MASTERADD:
1855                 ws->l_state.horizontal_mwin++;
1856                 break;
1857         case SWM_ARG_ID_MASTERDEL:
1858                 if (ws->l_state.horizontal_mwin > 0)
1859                         ws->l_state.horizontal_mwin--;
1860                 break;
1861         case SWM_ARG_ID_STACKINC:
1862                 ws->l_state.horizontal_stacks++;
1863                 break;
1864         case SWM_ARG_ID_STACKDEC:
1865                 if (ws->l_state.horizontal_stacks > 1)
1866                         ws->l_state.horizontal_stacks--;
1867                 break;
1868         default:
1869                 return;
1870         }
1871 }
1872
1873 void
1874 horizontal_stack(struct workspace *ws, struct swm_geometry *g)
1875 {
1876         DNPRINTF(SWM_D_STACK, "vertical_stack: workspace: %d\n", ws->idx);
1877
1878         stack_master(ws, g, 1, 0);
1879 }
1880
1881 /* fullscreen view */
1882 void
1883 max_stack(struct workspace *ws, struct swm_geometry *g)
1884 {
1885         XWindowChanges          wc;
1886         struct swm_geometry     gg = *g;
1887         struct ws_win           *win, *wintrans = NULL;
1888         unsigned int            mask;
1889         int                     winno;
1890
1891         DNPRINTF(SWM_D_STACK, "max_stack: workspace: %d\n", ws->idx);
1892
1893         if (ws == NULL)
1894                 return;
1895
1896         winno = count_win(ws, 0);
1897         if (winno == 0 && count_win(ws, 1) == 0)
1898                 return;
1899
1900         TAILQ_FOREACH(win, &ws->winlist, entry) {
1901                 if (win->transient != 0) {
1902                         wintrans = win;
1903                 } else {
1904                         bzero(&wc, sizeof wc);
1905                         wc.border_width = 1;
1906                         win->g.x = wc.x = gg.x;
1907                         win->g.y = wc.y = gg.y;
1908                         win->g.w = wc.width = gg.w;
1909                         win->g.h = wc.height = gg.h;
1910                         mask = CWX | CWY | CWWidth | CWHeight | CWBorderWidth;
1911                         XConfigureWindow(display, win->id, mask, &wc);
1912
1913                         /* unmap only if we don't have multi screen */
1914                         if (win != ws->focus)
1915                                 if (!(ScreenCount(display) > 1 || outputs > 1))
1916                                         unmap_window(win);
1917                 }
1918         }
1919
1920         /* put the last transient on top */
1921         if (wintrans) {
1922                 stack_floater(wintrans, ws->r);
1923                 focus_win(wintrans); /* override */
1924         }
1925 }
1926
1927 void
1928 send_to_ws(struct swm_region *r, union arg *args)
1929 {
1930         int                     wsid = args->id;
1931         struct ws_win           *win = win, *winfocus = NULL;
1932         struct workspace        *ws, *nws;
1933         Atom                    ws_idx_atom = 0;
1934         unsigned char           ws_idx_str[SWM_PROPLEN];
1935
1936         if (r && r->ws)
1937                 win = r->ws->focus;
1938         else
1939                 return;
1940         if (win == NULL)
1941                 return;
1942
1943         DNPRINTF(SWM_D_MOVE, "send_to_ws: win: %lu\n", win->id);
1944
1945         ws = win->ws;
1946         nws = &win->s->ws[wsid];
1947
1948         /* find a window to focus */
1949         winfocus = TAILQ_PREV(win, ws_win_list, entry);
1950         if (TAILQ_FIRST(&ws->winlist) == win)
1951                 winfocus = TAILQ_NEXT(win, entry);
1952         else {
1953                 winfocus = TAILQ_PREV(win, ws_win_list, entry);
1954                 if (winfocus == NULL)
1955                         winfocus = TAILQ_LAST(&ws->winlist, ws_win_list);
1956         }
1957         /* out of windows in ws so focus on nws instead if we multi screen */
1958         if (winfocus == NULL)
1959                 if (ScreenCount(display) > 1 || outputs > 1)
1960                         winfocus = win;
1961
1962
1963         unmap_window(win);
1964         TAILQ_REMOVE(&ws->winlist, win, entry);
1965         TAILQ_INSERT_TAIL(&nws->winlist, win, entry);
1966         win->ws = nws;
1967
1968         /* Try to update the window's workspace property */
1969         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
1970         if (ws_idx_atom &&
1971             snprintf(ws_idx_str, SWM_PROPLEN, "%d", nws->idx) < SWM_PROPLEN) {
1972                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
1973                     ws_idx_str);
1974                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
1975                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
1976         }
1977
1978         if (count_win(nws, 1) == 1)
1979                 nws->focus = win;
1980         ws->restack = 1;
1981         nws->restack = 1;
1982
1983         stack();
1984         if (winfocus)
1985                 focus_win(winfocus);
1986 }
1987
1988 void
1989 wkill(struct swm_region *r, union arg *args)
1990 {
1991         DNPRINTF(SWM_D_MISC, "wkill %d\n", args->id);
1992
1993         if(r->ws->focus == NULL)
1994                 return;
1995
1996         if (args->id == SWM_ARG_ID_KILLWINDOW)
1997                 XKillClient(display, r->ws->focus->id);
1998         else
1999                 if (r->ws->focus->can_delete)
2000                         client_msg(r->ws->focus, adelete);
2001 }
2002
2003 void
2004 floating_toggle(struct swm_region *r, union arg *args)
2005 {
2006         struct ws_win   *win = r->ws->focus;
2007
2008         if (win == NULL)
2009                 return;
2010
2011         win->floating = !win->floating;
2012         win->manual = 0;
2013         stack();
2014         focus_win(win);
2015 }
2016
2017 void
2018 resize_window(struct ws_win *win, int center)
2019 {
2020         unsigned int            mask;
2021         XWindowChanges          wc;
2022         struct swm_region       *r;
2023
2024         r = root_to_region(win->wa.root);
2025         bzero(&wc, sizeof wc);
2026         mask = CWBorderWidth | CWWidth | CWHeight;
2027         wc.border_width = 1;
2028         wc.width = win->g.w;
2029         wc.height = win->g.h;
2030         if (center == SWM_ARG_ID_CENTER) {
2031                 wc.x = (WIDTH(r) - win->g.w) / 2;
2032                 wc.y = (HEIGHT(r) - win->g.h) / 2;
2033                 mask |= CWX | CWY;
2034         }
2035
2036         DNPRINTF(SWM_D_STACK, "resize_window: win %lu x %d y %d w %d h %d\n",
2037             win->id, wc.x, wc.y, wc.width, wc.height);
2038
2039         XConfigureWindow(display, win->id, mask, &wc);
2040         config_win(win);
2041 }
2042
2043 void
2044 resize(struct ws_win *win, union arg *args)
2045 {
2046         XEvent                  ev;
2047         Time                    time = 0;
2048
2049         DNPRINTF(SWM_D_MOUSE, "resize: win %lu floating %d trans %d\n",
2050             win->id, win->floating, win->transient);
2051
2052         if (!(win->transient != 0 || win->floating != 0))
2053                 return;
2054
2055         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2056             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2057                 return;
2058         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w, win->g.h);
2059         do {
2060                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2061                     SubstructureRedirectMask, &ev);
2062                 switch(ev.type) {
2063                 case ConfigureRequest:
2064                 case Expose:
2065                 case MapRequest:
2066                         handler[ev.type](&ev);
2067                         break;
2068                 case MotionNotify:
2069                         if (ev.xmotion.x <= 1)
2070                                 ev.xmotion.x = 1;
2071                         if (ev.xmotion.y <= 1)
2072                                 ev.xmotion.y = 1;
2073                         win->g.w = ev.xmotion.x;
2074                         win->g.h = ev.xmotion.y;
2075
2076                         /* not free, don't sync more than 60 times / second */
2077                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2078                                 time = ev.xmotion.time;
2079                                 XSync(display, False);
2080                                 resize_window(win, args->id);
2081                         }
2082                         break;
2083                 }
2084         } while (ev.type != ButtonRelease);
2085         if (time) {
2086                 XSync(display, False);
2087                 resize_window(win, args->id);
2088         }
2089         XWarpPointer(display, None, win->id, 0, 0, 0, 0, win->g.w - 1,
2090             win->g.h - 1);
2091         XUngrabPointer(display, CurrentTime);
2092
2093         /* drain events */
2094         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2095 }
2096
2097 void
2098 move_window(struct ws_win *win)
2099 {
2100         unsigned int            mask;
2101         XWindowChanges          wc;
2102         struct swm_region       *r;
2103
2104         r = root_to_region(win->wa.root);
2105         bzero(&wc, sizeof wc);
2106         mask = CWX | CWY;
2107         wc.x = win->g.x;
2108         wc.y = win->g.y;
2109
2110         DNPRINTF(SWM_D_STACK, "move_window: win %lu x %d y %d w %d h %d\n",
2111             win->id, wc.x, wc.y, wc.width, wc.height);
2112
2113         XConfigureWindow(display, win->id, mask, &wc);
2114         config_win(win);
2115 }
2116
2117 void
2118 move(struct ws_win *win, union arg *args)
2119 {
2120         XEvent                  ev;
2121         Time                    time = 0;
2122         int                     restack = 0;
2123
2124         DNPRINTF(SWM_D_MOUSE, "move: win %lu floating %d trans %d\n",
2125             win->id, win->floating, win->transient);
2126
2127         if (win->floating == 0) {
2128                 win->floating = 1;
2129                 win->manual = 1;
2130                 restack = 1;
2131         }
2132
2133         if (XGrabPointer(display, win->id, False, MOUSEMASK, GrabModeAsync,
2134             GrabModeAsync, None, None /* cursor */, CurrentTime) != GrabSuccess)
2135                 return;
2136         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2137         do {
2138                 XMaskEvent(display, MOUSEMASK | ExposureMask |
2139                     SubstructureRedirectMask, &ev);
2140                 switch(ev.type) {
2141                 case ConfigureRequest:
2142                 case Expose:
2143                 case MapRequest:
2144                         handler[ev.type](&ev);
2145                         break;
2146                 case MotionNotify:
2147                         win->g.x = ev.xmotion.x_root;
2148                         win->g.y = ev.xmotion.y_root;
2149
2150                         /* not free, don't sync more than 60 times / second */
2151                         if ((ev.xmotion.time - time) > (1000 / 60) ) {
2152                                 time = ev.xmotion.time;
2153                                 XSync(display, False);
2154                                 move_window(win);
2155                         }
2156                         break;
2157                 }
2158         } while (ev.type != ButtonRelease);
2159         if (time) {
2160                 XSync(display, False);
2161                 move_window(win);
2162         }
2163         XWarpPointer(display, None, win->id, 0, 0, 0, 0, 0, 0);
2164         XUngrabPointer(display, CurrentTime);
2165         if (restack)
2166                 stack();
2167
2168         /* drain events */
2169         while (XCheckMaskEvent(display, EnterWindowMask, &ev));
2170 }
2171
2172 /* key definitions */
2173 void
2174 dummykeyfunc(struct swm_region *r, union arg *args)
2175 {
2176 };
2177
2178 void
2179 legacyfunc(struct swm_region *r, union arg *args)
2180 {
2181 };
2182
2183 struct keyfunc {
2184         char                    name[SWM_FUNCNAME_LEN];
2185         void                    (*func)(struct swm_region *r, union arg *);
2186         union arg               args;
2187 } keyfuncs[kf_invalid + 1] = {
2188         /* name                 function        argument */
2189         { "cycle_layout",       cycle_layout,   {0} },
2190         { "stack_reset",        stack_config,   {.id = SWM_ARG_ID_STACKRESET} },
2191         { "master_shrink",      stack_config,   {.id = SWM_ARG_ID_MASTERSHRINK} },
2192         { "master_grow",        stack_config,   {.id = SWM_ARG_ID_MASTERGROW} },
2193         { "master_add",         stack_config,   {.id = SWM_ARG_ID_MASTERADD} },
2194         { "master_del",         stack_config,   {.id = SWM_ARG_ID_MASTERDEL} },
2195         { "stack_inc",          stack_config,   {.id = SWM_ARG_ID_STACKINC} },
2196         { "stack_dec",          stack_config,   {.id = SWM_ARG_ID_STACKDEC} },
2197         { "swap_main",          swapwin,        {.id = SWM_ARG_ID_SWAPMAIN} },
2198         { "focus_next",         focus,          {.id = SWM_ARG_ID_FOCUSNEXT} },
2199         { "focus_prev",         focus,          {.id = SWM_ARG_ID_FOCUSPREV} },
2200         { "swap_next",          swapwin,        {.id = SWM_ARG_ID_SWAPNEXT} },
2201         { "swap_prev",          swapwin,        {.id = SWM_ARG_ID_SWAPPREV} },
2202         { "spawn_term",         spawnterm,      {.argv = spawn_term} },
2203         { "spawn_menu",         legacyfunc,     {0} },
2204         { "quit",               quit,           {0} },
2205         { "restart",            restart,        {0} },
2206         { "focus_main",         focus,          {.id = SWM_ARG_ID_FOCUSMAIN} },
2207         { "ws_1",               switchws,       {.id = 0} },
2208         { "ws_2",               switchws,       {.id = 1} },
2209         { "ws_3",               switchws,       {.id = 2} },
2210         { "ws_4",               switchws,       {.id = 3} },
2211         { "ws_5",               switchws,       {.id = 4} },
2212         { "ws_6",               switchws,       {.id = 5} },
2213         { "ws_7",               switchws,       {.id = 6} },
2214         { "ws_8",               switchws,       {.id = 7} },
2215         { "ws_9",               switchws,       {.id = 8} },
2216         { "ws_10",              switchws,       {.id = 9} },
2217         { "ws_next",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_UP} },
2218         { "ws_prev",            cyclews,        {.id = SWM_ARG_ID_CYCLEWS_DOWN} },
2219         { "screen_next",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_UP} },
2220         { "screen_prev",        cyclescr,       {.id = SWM_ARG_ID_CYCLESC_DOWN} },
2221         { "mvws_1",             send_to_ws,     {.id = 0} },
2222         { "mvws_2",             send_to_ws,     {.id = 1} },
2223         { "mvws_3",             send_to_ws,     {.id = 2} },
2224         { "mvws_4",             send_to_ws,     {.id = 3} },
2225         { "mvws_5",             send_to_ws,     {.id = 4} },
2226         { "mvws_6",             send_to_ws,     {.id = 5} },
2227         { "mvws_7",             send_to_ws,     {.id = 6} },
2228         { "mvws_8",             send_to_ws,     {.id = 7} },
2229         { "mvws_9",             send_to_ws,     {.id = 8} },
2230         { "mvws_10",            send_to_ws,     {.id = 9} },
2231         { "bar_toggle",         bar_toggle,     {0} },
2232         { "wind_kill",          wkill,          {.id = SWM_ARG_ID_KILLWINDOW} },
2233         { "wind_del",           wkill,          {.id = SWM_ARG_ID_DELETEWINDOW} },
2234         { "screenshot_all",     legacyfunc,     {0} },
2235         { "screenshot_wind",    legacyfunc,     {0} },
2236         { "float_toggle",       floating_toggle,{0} },
2237         { "version",            version,        {0} },
2238         { "spawn_lock",         legacyfunc,     {0} },
2239         { "spawn_initscr",      legacyfunc,     {0} },
2240         { "spawn_custom",       dummykeyfunc,   {0} },
2241         { "invalid key func",   NULL,           {0} },
2242 };
2243 struct key {
2244         unsigned int            mod;
2245         KeySym                  keysym;
2246         enum keyfuncid          funcid;
2247         char                    *spawn_name;
2248 };
2249 int                             keys_size = 0, keys_length = 0;
2250 struct key                      *keys = NULL;
2251
2252 /* mouse */
2253 enum { client_click, root_click };
2254 struct button {
2255         unsigned int            action;
2256         unsigned int            mask;
2257         unsigned int            button;
2258         void                    (*func)(struct ws_win *, union arg *);
2259         union arg               args;
2260 } buttons[] = {
2261           /* action     key             mouse button    func    args */
2262         { client_click, MODKEY,         Button3,        resize, {.id = SWM_ARG_ID_DONTCENTER} },
2263         { client_click, MODKEY | ShiftMask, Button3,    resize, {.id = SWM_ARG_ID_CENTER} },
2264         { client_click, MODKEY,         Button1,        move,   {0} },
2265 };
2266
2267 void
2268 update_modkey(unsigned int mod)
2269 {
2270         int                     i;
2271
2272         mod_key = mod;
2273         for (i = 0; i < keys_length; i++)
2274                 if (keys[i].mod & ShiftMask)
2275                         keys[i].mod = mod | ShiftMask;
2276                 else
2277                         keys[i].mod = mod;
2278
2279         for (i = 0; i < LENGTH(buttons); i++)
2280                 if (buttons[i].mask & ShiftMask)
2281                         buttons[i].mask = mod | ShiftMask;
2282                 else
2283                         buttons[i].mask = mod;
2284 }
2285
2286 /* spawn */
2287 struct spawn_prog {
2288         char                    *name;
2289         int                     argc;
2290         char                    **argv;
2291 };
2292
2293 int                             spawns_size = 0, spawns_length = 0;
2294 struct spawn_prog               *spawns = NULL;
2295
2296 void
2297 spawn_custom(struct swm_region *r, union arg *args, char *spawn_name)
2298 {
2299         union arg               a;
2300         struct spawn_prog       *prog = NULL;
2301         int                     i;
2302         char                    *ap, **real_args;
2303
2304         DNPRINTF(SWM_D_SPAWN, "spawn_custom %s\n", spawn_name);
2305
2306         /* find program */
2307         for (i = 0; i < spawns_length; i++) {
2308                 if (!strcasecmp(spawn_name, spawns[i].name))
2309                         prog = &spawns[i];
2310         }
2311         if (prog == NULL) {
2312                 fprintf(stderr, "spawn_custom: program %s not found\n",
2313                     spawn_name);
2314                 return;
2315         }
2316
2317         /* make room for expanded args */
2318         if ((real_args = calloc(prog->argc + 1, sizeof(char *))) == NULL)
2319                 err(1, "spawn_custom: calloc real_args");
2320
2321         /* expand spawn_args into real_args */
2322         for (i = 0; i < prog->argc; i++) {
2323                 ap = prog->argv[i];
2324                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: raw arg = %s\n", ap);
2325                 if (!strcasecmp(ap, "$bar_border")) {
2326                         if ((real_args[i] =
2327                             strdup(r->s->c[SWM_S_COLOR_BAR_BORDER].name))
2328                             == NULL)
2329                                 err(1,  "spawn_custom border color");
2330                 } else if (!strcasecmp(ap, "$bar_color")) {
2331                         if ((real_args[i] =
2332                             strdup(r->s->c[SWM_S_COLOR_BAR].name))
2333                             == NULL)
2334                                 err(1, "spawn_custom bar color");
2335                 } else if (!strcasecmp(ap, "$bar_font")) {
2336                         if ((real_args[i] = strdup(bar_fonts[bar_fidx]))
2337                             == NULL)
2338                                 err(1, "spawn_custom bar fonts");
2339                 } else if (!strcasecmp(ap, "$bar_font_color")) {
2340                         if ((real_args[i] =
2341                             strdup(r->s->c[SWM_S_COLOR_BAR_FONT].name))
2342                             == NULL)
2343                                 err(1, "spawn_custom color font");
2344                 } else if (!strcasecmp(ap, "$color_focus")) {
2345                         if ((real_args[i] =
2346                             strdup(r->s->c[SWM_S_COLOR_FOCUS].name))
2347                             == NULL)
2348                                 err(1, "spawn_custom color focus");
2349                 } else if (!strcasecmp(ap, "$color_unfocus")) {
2350                         if ((real_args[i] =
2351                             strdup(r->s->c[SWM_S_COLOR_UNFOCUS].name))
2352                             == NULL)
2353                                 err(1, "spawn_custom color unfocus");
2354                 } else {
2355                         /* no match --> copy as is */
2356                         if ((real_args[i] = strdup(ap)) == NULL)
2357                                 err(1, "spawn_custom strdup(ap)");
2358                 }
2359                 DNPRINTF(SWM_D_SPAWN, "spawn_custom: cooked arg = %s\n",
2360                     real_args[i]);
2361         }
2362
2363 #ifdef SWM_DEBUG
2364         if ((swm_debug & SWM_D_SPAWN) != 0) {
2365                 fprintf(stderr, "spawn_custom: result = ");
2366                 for (i = 0; i < prog->argc; i++)
2367                         fprintf(stderr, "\"%s\" ", real_args[i]);
2368                 fprintf(stderr, "\n");
2369         }
2370 #endif
2371
2372         a.argv = real_args;
2373         spawn(r, &a);
2374         for (i = 0; i < prog->argc; i++)
2375                 free(real_args[i]);
2376         free(real_args);
2377 }
2378
2379 void
2380 setspawn(struct spawn_prog *prog)
2381 {
2382         int                     i, j;
2383
2384         if (prog == NULL || prog->name == NULL)
2385                 return;
2386
2387         /* find existing */
2388         for (i = 0; i < spawns_length; i++) {
2389                 if (!strcmp(spawns[i].name, prog->name)) {
2390                         /* found */
2391                         if (prog->argv == NULL) {
2392                                 /* delete */
2393                                 DNPRINTF(SWM_D_SPAWN,
2394                                     "setspawn: delete #%d %s\n",
2395                                     i, spawns[i].name);
2396                                 free(spawns[i].name);
2397                                 for (j = 0; j < spawns[i].argc; j++)
2398                                         free(spawns[i].argv[j]);
2399                                 free(spawns[i].argv);
2400                                 j = spawns_length - 1;
2401                                 if (i < j)
2402                                         spawns[i] = spawns[j];
2403                                 spawns_length--;
2404                                 free(prog->name);
2405                         } else {
2406                                 /* replace */
2407                                 DNPRINTF(SWM_D_SPAWN,
2408                                     "setspawn: replace #%d %s\n",
2409                                     i, spawns[i].name);
2410                                 free(spawns[i].name);
2411                                 for (j = 0; j < spawns[i].argc; j++)
2412                                         free(spawns[i].argv[j]);
2413                                 free(spawns[i].argv);
2414                                 spawns[i] = *prog;
2415                         }
2416                         /* found case handled */
2417                         free(prog);
2418                         return;
2419                 }
2420         }
2421
2422         if (prog->argv == NULL) {
2423                 fprintf(stderr,
2424                     "error: setspawn: cannot find program %s", prog->name);
2425                 free(prog);
2426                 return;
2427         }
2428
2429         /* not found: add */
2430         if (spawns_size == 0 || spawns == NULL) {
2431                 spawns_size = 4;
2432                 DNPRINTF(SWM_D_SPAWN, "setspawn: init list %d\n", spawns_size);
2433                 spawns = malloc((size_t)spawns_size *
2434                     sizeof(struct spawn_prog));
2435                 if (spawns == NULL) {
2436                         fprintf(stderr, "setspawn: malloc failed\n");
2437                         perror(" failed");
2438                         quit(NULL, NULL);
2439                 }
2440         } else if (spawns_length == spawns_size) {
2441                 spawns_size *= 2;
2442                 DNPRINTF(SWM_D_SPAWN, "setspawn: grow list %d\n", spawns_size);
2443                 spawns = realloc(spawns, (size_t)spawns_size *
2444                     sizeof(struct spawn_prog));
2445                 if (spawns == NULL) {
2446                         fprintf(stderr, "setspawn: realloc failed\n");
2447                         perror(" failed");
2448                         quit(NULL, NULL);
2449                 }
2450         }
2451
2452         if (spawns_length < spawns_size) {
2453                 DNPRINTF(SWM_D_SPAWN, "setspawn: add #%d %s\n",
2454                     spawns_length, prog->name);
2455                 i = spawns_length++;
2456                 spawns[i] = *prog;
2457         } else {
2458                 fprintf(stderr, "spawns array problem?\n");
2459                 if (spawns == NULL) {
2460                         fprintf(stderr, "spawns array is NULL!\n");
2461                         quit(NULL, NULL);
2462                 }
2463         }
2464         free(prog);
2465 }
2466
2467 int
2468 setconfspawn(char *selector, char *value, int flags)
2469 {
2470         struct spawn_prog       *prog;
2471         char                    *vp, *cp, *word;
2472
2473         DNPRINTF(SWM_D_SPAWN, "setconfspawn: [%s] [%s]\n", selector, value);
2474         if ((prog = calloc(1, sizeof *prog)) == NULL)
2475                 err(1, "setconfspawn: calloc prog");
2476         prog->name = strdup(selector);
2477         if (prog->name == NULL)
2478                 err(1, "setconfspawn prog->name");
2479         if ((cp = vp = strdup(value)) == NULL)
2480                 err(1, "setconfspawn: strdup(value) ");
2481         while ((word = strsep(&cp, " \t")) != NULL) {
2482                 DNPRINTF(SWM_D_SPAWN, "setconfspawn: arg [%s]\n", word);
2483                 if (cp)
2484                         cp += (long)strspn(cp, " \t");
2485                 if (strlen(word) > 0) {
2486                         prog->argc++;
2487                         prog->argv = realloc(prog->argv,
2488                             prog->argc * sizeof(char *));
2489                         if ((prog->argv[prog->argc - 1] = strdup(word)) == NULL)
2490                                 err(1, "setconfspawn: strdup");
2491                 }
2492         }
2493         free(vp);
2494
2495         setspawn(prog);
2496
2497         DNPRINTF(SWM_D_SPAWN, "setconfspawn: done\n");
2498         return (0);
2499 }
2500
2501 void
2502 setup_spawn(void)
2503 {
2504         setconfspawn("term",            "xterm",                0);
2505         setconfspawn("screenshot_all",  "screenshot.sh full",   0);
2506         setconfspawn("screenshot_wind", "screenshot.sh window", 0);
2507         setconfspawn("lock",            "xlock",                0);
2508         setconfspawn("initscr",         "initscreen.sh",        0);
2509         setconfspawn("menu",            "dmenu_run"
2510                                         " -fn $bar_font"
2511                                         " -nb $bar_color"
2512                                         " -nf $bar_font_color"
2513                                         " -sb $bar_border"
2514                                         " -sf $bar_color",      0);
2515 }
2516
2517 /* key bindings */
2518 #define SWM_MODNAME_SIZE        32
2519 #define SWM_KEY_WS              "\n+ \t"
2520 int
2521 parsekeys(char *keystr, unsigned int currmod, unsigned int *mod, KeySym *ks)
2522 {
2523         char                    *cp, *name;
2524         KeySym                  uks;
2525         DNPRINTF(SWM_D_KEY, "parsekeys: enter [%s]\n", keystr);
2526         if (mod == NULL || ks == NULL) {
2527                 DNPRINTF(SWM_D_KEY, "parsekeys: no mod or key vars\n");
2528                 return (1);
2529         }
2530         if (keystr == NULL || strlen(keystr) == 0) {
2531                 DNPRINTF(SWM_D_KEY, "parsekeys: no keystr\n");
2532                 return (1);
2533         }
2534         cp = keystr;
2535         *ks = NoSymbol;
2536         *mod = 0;
2537         while ((name = strsep(&cp, SWM_KEY_WS)) != NULL) {
2538                 DNPRINTF(SWM_D_KEY, "parsekeys: key [%s]\n", name);
2539                 if (cp)
2540                         cp += (long)strspn(cp, SWM_KEY_WS);
2541                 if (strncasecmp(name, "MOD", SWM_MODNAME_SIZE) == 0)
2542                         *mod |= currmod;
2543                 else if (!strncasecmp(name, "Mod1", SWM_MODNAME_SIZE))
2544                         *mod |= Mod1Mask;
2545                 else if (!strncasecmp(name, "Mod2", SWM_MODNAME_SIZE))
2546                         *mod += Mod2Mask;
2547                 else if (!strncmp(name, "Mod3", SWM_MODNAME_SIZE))
2548                         *mod |= Mod3Mask;
2549                 else if (!strncmp(name, "Mod4", SWM_MODNAME_SIZE))
2550                         *mod |= Mod4Mask;
2551                 else if (strncasecmp(name, "SHIFT", SWM_MODNAME_SIZE) == 0)
2552                         *mod |= ShiftMask;
2553                 else if (strncasecmp(name, "CONTROL", SWM_MODNAME_SIZE) == 0)
2554                         *mod |= ControlMask;
2555                 else {
2556                         *ks = XStringToKeysym(name);
2557                         XConvertCase(*ks, ks, &uks);
2558                         if (ks == NoSymbol) {
2559                                 DNPRINTF(SWM_D_KEY,
2560                                     "parsekeys: invalid key %s\n",
2561                                     name);
2562                                 return (1);
2563                         }
2564                 }
2565         }
2566         DNPRINTF(SWM_D_KEY, "parsekeys: leave ok\n");
2567         return (0);
2568 }
2569 char *
2570 strdupsafe(char *str)
2571 {
2572         if (str == NULL)
2573                 return (NULL);
2574         else
2575                 return (strdup(str));
2576 }
2577 void
2578 setkeybinding(unsigned int mod, KeySym ks, enum keyfuncid kfid, char *spawn_name)
2579 {
2580         int                     i, j;
2581         DNPRINTF(SWM_D_KEY, "setkeybinding: enter %s [%s]\n",
2582             keyfuncs[kfid].name, spawn_name);
2583         /* find existing */
2584         for (i = 0; i < keys_length; i++) {
2585                 if (keys[i].mod == mod && keys[i].keysym == ks) {
2586                         if (kfid == kf_invalid) {
2587                                 /* found: delete */
2588                                 DNPRINTF(SWM_D_KEY,
2589                                     "setkeybinding: delete #%d %s\n",
2590                                     i, keyfuncs[keys[i].funcid].name);
2591                                 free(keys[i].spawn_name);
2592                                 j = keys_length - 1;
2593                                 if (i < j)
2594                                         keys[i] = keys[j];
2595                                 keys_length--;
2596                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2597                                 return;
2598                         } else {
2599                                 /* found: replace */
2600                                 DNPRINTF(SWM_D_KEY,
2601                                     "setkeybinding: replace #%d %s %s\n",
2602                                     i, keyfuncs[keys[i].funcid].name,
2603                                     spawn_name);
2604                                 free(keys[i].spawn_name);
2605                                 keys[i].mod = mod;
2606                                 keys[i].keysym = ks;
2607                                 keys[i].funcid = kfid;
2608                                 keys[i].spawn_name = strdupsafe(spawn_name);
2609                                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2610                                 return;
2611                         }
2612                 }
2613         }
2614         if (kfid == kf_invalid) {
2615                 fprintf(stderr,
2616                     "error: setkeybinding: cannot find mod/key combination");
2617                 DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2618                 return;
2619         }
2620         /* not found: add */
2621         if (keys_size == 0 || keys == NULL) {
2622                 keys_size = 4;
2623                 DNPRINTF(SWM_D_KEY, "setkeybinding: init list %d\n", keys_size);
2624                 keys = malloc((size_t)keys_size * sizeof(struct key));
2625                 if (!keys) {
2626                         fprintf(stderr, "malloc failed\n");
2627                         perror(" failed");
2628                         quit(NULL, NULL);
2629                 }
2630         } else if (keys_length == keys_size) {
2631                 keys_size *= 2;
2632                 DNPRINTF(SWM_D_KEY, "setkeybinding: grow list %d\n", keys_size);
2633                 keys = realloc(keys, (size_t)keys_size * sizeof(struct key));
2634                 if (!keys) {
2635                         fprintf(stderr, "realloc failed\n");
2636                         perror(" failed");
2637                         quit(NULL, NULL);
2638                 }
2639         }
2640         if (keys_length < keys_size) {
2641                 j = keys_length++;
2642                 DNPRINTF(SWM_D_KEY, "setkeybinding: add #%d %s %s\n",
2643                     j, keyfuncs[kfid].name, spawn_name);
2644                 keys[j].mod = mod;
2645                 keys[j].keysym = ks;
2646                 keys[j].funcid = kfid;
2647                 keys[j].spawn_name = strdupsafe(spawn_name);
2648         } else {
2649                 fprintf(stderr, "keys array problem?\n");
2650                 if (!keys) {
2651                         fprintf(stderr, "keys array problem\n");
2652                         quit(NULL, NULL);
2653                 }
2654         }
2655         DNPRINTF(SWM_D_KEY, "setkeybinding: leave\n");
2656 }
2657 int
2658 setconfbinding(char *selector, char *value, int flags)
2659 {
2660         enum keyfuncid          kfid;
2661         unsigned int            mod;
2662         KeySym                  ks;
2663         int                     i;
2664         DNPRINTF(SWM_D_KEY, "setconfbinding: enter\n");
2665         if (selector == NULL) {
2666                 DNPRINTF(SWM_D_KEY, "setconfbinding: unbind %s\n", value);
2667                 if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2668                         kfid = kf_invalid;
2669                         setkeybinding(mod, ks, kfid, NULL);
2670                         return (0);
2671                 } else
2672                         return (1);
2673         }
2674         /* search by key function name */
2675         for (kfid = 0; kfid < kf_invalid; (kfid)++) {
2676                 if (strncasecmp(selector, keyfuncs[kfid].name,
2677                     SWM_FUNCNAME_LEN) == 0) {
2678                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2679                             selector);
2680                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2681                                 setkeybinding(mod, ks, kfid, NULL);
2682                                 return (0);
2683                         } else
2684                                 return (1);
2685                 }
2686         }
2687         /* search by custom spawn name */
2688         for (i = 0; i < spawns_length; i++) {
2689                 if (strcasecmp(selector, spawns[i].name) == 0) {
2690                         DNPRINTF(SWM_D_KEY, "setconfbinding: %s: match\n",
2691                             selector);
2692                         if (parsekeys(value, mod_key, &mod, &ks) == 0) {
2693                                 setkeybinding(mod, ks, kf_spawn_custom,
2694                                     spawns[i].name);
2695                                 return (0);
2696                         } else
2697                                 return (1);
2698                 }
2699         }
2700         DNPRINTF(SWM_D_KEY, "setconfbinding: no match\n");
2701         return (1);
2702 }
2703 void
2704 setup_keys(void)
2705 {
2706         setkeybinding(MODKEY,           XK_space,       kf_cycle_layout,NULL);
2707         setkeybinding(MODKEY|ShiftMask, XK_space,       kf_stack_reset, NULL);
2708         setkeybinding(MODKEY,           XK_h,           kf_master_shrink,NULL);
2709         setkeybinding(MODKEY,           XK_l,           kf_master_grow, NULL);
2710         setkeybinding(MODKEY,           XK_comma,       kf_master_add,  NULL);
2711         setkeybinding(MODKEY,           XK_period,      kf_master_del,  NULL);
2712         setkeybinding(MODKEY|ShiftMask, XK_comma,       kf_stack_inc,   NULL);
2713         setkeybinding(MODKEY|ShiftMask, XK_period,      kf_stack_dec,   NULL);
2714         setkeybinding(MODKEY,           XK_Return,      kf_swap_main,   NULL);
2715         setkeybinding(MODKEY,           XK_j,           kf_focus_next,  NULL);
2716         setkeybinding(MODKEY,           XK_k,           kf_focus_prev,  NULL);
2717         setkeybinding(MODKEY|ShiftMask, XK_j,           kf_swap_next,   NULL);
2718         setkeybinding(MODKEY|ShiftMask, XK_k,           kf_swap_prev,   NULL);
2719         setkeybinding(MODKEY|ShiftMask, XK_Return,      kf_spawn_term,  NULL);
2720         setkeybinding(MODKEY,           XK_p,           kf_spawn_custom,        "menu");
2721         setkeybinding(MODKEY|ShiftMask, XK_q,           kf_quit,        NULL);
2722         setkeybinding(MODKEY,           XK_q,           kf_restart,     NULL);
2723         setkeybinding(MODKEY,           XK_m,           kf_focus_main,  NULL);
2724         setkeybinding(MODKEY,           XK_1,           kf_ws_1,        NULL);
2725         setkeybinding(MODKEY,           XK_2,           kf_ws_2,        NULL);
2726         setkeybinding(MODKEY,           XK_3,           kf_ws_3,        NULL);
2727         setkeybinding(MODKEY,           XK_4,           kf_ws_4,        NULL);
2728         setkeybinding(MODKEY,           XK_5,           kf_ws_5,        NULL);
2729         setkeybinding(MODKEY,           XK_6,           kf_ws_6,        NULL);
2730         setkeybinding(MODKEY,           XK_7,           kf_ws_7,        NULL);
2731         setkeybinding(MODKEY,           XK_8,           kf_ws_8,        NULL);
2732         setkeybinding(MODKEY,           XK_9,           kf_ws_9,        NULL);
2733         setkeybinding(MODKEY,           XK_0,           kf_ws_10,       NULL);
2734         setkeybinding(MODKEY,           XK_Right,       kf_ws_next,     NULL);
2735         setkeybinding(MODKEY,           XK_Left,        kf_ws_prev,     NULL);
2736         setkeybinding(MODKEY|ShiftMask, XK_Right,       kf_screen_next, NULL);
2737         setkeybinding(MODKEY|ShiftMask, XK_Left,        kf_screen_prev, NULL);
2738         setkeybinding(MODKEY|ShiftMask, XK_1,           kf_mvws_1,      NULL);
2739         setkeybinding(MODKEY|ShiftMask, XK_2,           kf_mvws_2,      NULL);
2740         setkeybinding(MODKEY|ShiftMask, XK_3,           kf_mvws_3,      NULL);
2741         setkeybinding(MODKEY|ShiftMask, XK_4,           kf_mvws_4,      NULL);
2742         setkeybinding(MODKEY|ShiftMask, XK_5,           kf_mvws_5,      NULL);
2743         setkeybinding(MODKEY|ShiftMask, XK_6,           kf_mvws_6,      NULL);
2744         setkeybinding(MODKEY|ShiftMask, XK_7,           kf_mvws_7,      NULL);
2745         setkeybinding(MODKEY|ShiftMask, XK_8,           kf_mvws_8,      NULL);
2746         setkeybinding(MODKEY|ShiftMask, XK_9,           kf_mvws_9,      NULL);
2747         setkeybinding(MODKEY|ShiftMask, XK_0,           kf_mvws_10,     NULL);
2748         setkeybinding(MODKEY,           XK_b,           kf_bar_toggle,  NULL);
2749         setkeybinding(MODKEY,           XK_Tab,         kf_focus_next,  NULL);
2750         setkeybinding(MODKEY|ShiftMask, XK_Tab,         kf_focus_prev,  NULL);
2751         setkeybinding(MODKEY|ShiftMask, XK_x,           kf_wind_kill,   NULL);
2752         setkeybinding(MODKEY,           XK_x,           kf_wind_del,    NULL);
2753         setkeybinding(MODKEY,           XK_s,           kf_spawn_custom,        "screenshot_all");
2754         setkeybinding(MODKEY|ShiftMask, XK_s,           kf_spawn_custom,        "screenshot_wind");
2755         setkeybinding(MODKEY,           XK_t,           kf_float_toggle,NULL);
2756         setkeybinding(MODKEY|ShiftMask, XK_v,           kf_version,     NULL);
2757         setkeybinding(MODKEY|ShiftMask, XK_Delete,      kf_spawn_custom,        "lock");
2758         setkeybinding(MODKEY|ShiftMask, XK_i,           kf_spawn_custom,        "initscr");
2759 }
2760 void
2761 updatenumlockmask(void)
2762 {
2763         unsigned int            i, j;
2764         XModifierKeymap         *modmap;
2765
2766         DNPRINTF(SWM_D_MISC, "updatenumlockmask\n");
2767         numlockmask = 0;
2768         modmap = XGetModifierMapping(display);
2769         for (i = 0; i < 8; i++)
2770                 for (j = 0; j < modmap->max_keypermod; j++)
2771                         if (modmap->modifiermap[i * modmap->max_keypermod + j]
2772                           == XKeysymToKeycode(display, XK_Num_Lock))
2773                                 numlockmask = (1 << i);
2774
2775         XFreeModifiermap(modmap);
2776 }
2777
2778 void
2779 grabkeys(void)
2780 {
2781         unsigned int            i, j, k;
2782         KeyCode                 code;
2783         unsigned int            modifiers[] =
2784             { 0, LockMask, numlockmask, numlockmask | LockMask };
2785
2786         DNPRINTF(SWM_D_MISC, "grabkeys\n");
2787         updatenumlockmask();
2788
2789         for (k = 0; k < ScreenCount(display); k++) {
2790                 if (TAILQ_EMPTY(&screens[k].rl))
2791                         continue;
2792                 XUngrabKey(display, AnyKey, AnyModifier, screens[k].root);
2793                 for (i = 0; i < keys_length; i++) {
2794                         if ((code = XKeysymToKeycode(display, keys[i].keysym)))
2795                                 for (j = 0; j < LENGTH(modifiers); j++)
2796                                         XGrabKey(display, code,
2797                                             keys[i].mod | modifiers[j],
2798                                             screens[k].root, True,
2799                                             GrabModeAsync, GrabModeAsync);
2800                 }
2801         }
2802 }
2803
2804 void
2805 grabbuttons(struct ws_win *win, int focused)
2806 {
2807         unsigned int            i, j;
2808         unsigned int            modifiers[] =
2809             { 0, LockMask, numlockmask, numlockmask|LockMask };
2810
2811         updatenumlockmask();
2812         XUngrabButton(display, AnyButton, AnyModifier, win->id);
2813         if(focused) {
2814                 for (i = 0; i < LENGTH(buttons); i++)
2815                         if (buttons[i].action == client_click)
2816                                 for (j = 0; j < LENGTH(modifiers); j++)
2817                                         XGrabButton(display, buttons[i].button,
2818                                             buttons[i].mask | modifiers[j],
2819                                             win->id, False, BUTTONMASK,
2820                                             GrabModeAsync, GrabModeSync, None,
2821                                             None);
2822         } else
2823                 XGrabButton(display, AnyButton, AnyModifier, win->id, False,
2824                     BUTTONMASK, GrabModeAsync, GrabModeSync, None, None);
2825 }
2826
2827 const char *quirkname[] = {
2828         "NONE",         /* config string for "no value" */
2829         "FLOAT",
2830         "TRANSSZ",
2831         "ANYWHERE",
2832         "XTERM_FONTADJ",
2833         "FULLSCREEN",
2834 };
2835
2836 /* SWM_Q_WS: retain '|' for back compat for now (2009-08-11) */
2837 #define SWM_Q_WS                "\n|+ \t"
2838 int
2839 parsequirks(char *qstr, unsigned long *quirk)
2840 {
2841         char                    *cp, *name;
2842         int                     i;
2843
2844         if (quirk == NULL)
2845                 return (1);
2846
2847         cp = qstr;
2848         *quirk = 0;
2849         while ((name = strsep(&cp, SWM_Q_WS)) != NULL) {
2850                 if (cp)
2851                         cp += (long)strspn(cp, SWM_Q_WS);
2852                 for (i = 0; i < LENGTH(quirkname); i++) {
2853                         if (!strncasecmp(name, quirkname[i], SWM_QUIRK_LEN)) {
2854                                 DNPRINTF(SWM_D_QUIRK, "parsequirks: %s\n", name);
2855                                 if (i == 0) {
2856                                         *quirk = 0;
2857                                         return (0);
2858                                 }
2859                                 *quirk |= 1 << (i-1);
2860                                 break;
2861                         }
2862                 }
2863                 if (i >= LENGTH(quirkname)) {
2864                         DNPRINTF(SWM_D_QUIRK,
2865                             "parsequirks: invalid quirk [%s]\n", name);
2866                         return (1);
2867                 }
2868         }
2869         return (0);
2870 }
2871 void
2872 setquirk(const char *class, const char *name, const int quirk)
2873 {
2874         int                     i, j;
2875
2876         /* find existing */
2877         for (i = 0; i < quirks_length; i++) {
2878                 if (!strcmp(quirks[i].class, class) &&
2879                     !strcmp(quirks[i].name, name)) {
2880                         if (!quirk) {
2881                                 /* found: delete */
2882                                 DNPRINTF(SWM_D_QUIRK,
2883                                     "setquirk: delete #%d %s:%s\n",
2884                                     i, quirks[i].class, quirks[i].name);
2885                                 free(quirks[i].class);
2886                                 free(quirks[i].name);
2887                                 j = quirks_length - 1;
2888                                 if (i < j)
2889                                         quirks[i] = quirks[j];
2890                                 quirks_length--;
2891                                 return;
2892                         } else {
2893                                 /* found: replace */
2894                                 DNPRINTF(SWM_D_QUIRK,
2895                                     "setquirk: replace #%d %s:%s\n",
2896                                     i, quirks[i].class, quirks[i].name);
2897                                 free(quirks[i].class);
2898                                 free(quirks[i].name);
2899                                 quirks[i].class = strdup(class);
2900                                 quirks[i].name = strdup(name);
2901                                 quirks[i].quirk = quirk;
2902                                 return;
2903                         }
2904                 }
2905         }
2906         if (!quirk) {
2907                 fprintf(stderr,
2908                     "error: setquirk: cannot find class/name combination");
2909                 return;
2910         }
2911         /* not found: add */
2912         if (quirks_size == 0 || quirks == NULL) {
2913                 quirks_size = 4;
2914                 DNPRINTF(SWM_D_QUIRK, "setquirk: init list %d\n", quirks_size);
2915                 quirks = malloc((size_t)quirks_size * sizeof(struct quirk));
2916                 if (!quirks) {
2917                         fprintf(stderr, "setquirk: malloc failed\n");
2918                         perror(" failed");
2919                         quit(NULL, NULL);
2920                 }
2921         } else if (quirks_length == quirks_size) {
2922                 quirks_size *= 2;
2923                 DNPRINTF(SWM_D_QUIRK, "setquirk: grow list %d\n", quirks_size);
2924                 quirks = realloc(quirks, (size_t)quirks_size * sizeof(struct quirk));
2925                 if (!quirks) {
2926                         fprintf(stderr, "setquirk: realloc failed\n");
2927                         perror(" failed");
2928                         quit(NULL, NULL);
2929                 }
2930         }
2931         if (quirks_length < quirks_size) {
2932                 DNPRINTF(SWM_D_QUIRK, "setquirk: add %d\n", quirks_length);
2933                 j = quirks_length++;
2934                 quirks[j].class = strdup(class);
2935                 quirks[j].name = strdup(name);
2936                 quirks[j].quirk = quirk;
2937         } else {
2938                 fprintf(stderr, "quirks array problem?\n");
2939                 if (!quirks) {
2940                         fprintf(stderr, "quirks array problem!\n");
2941                         quit(NULL, NULL);
2942                 }
2943         }
2944 }
2945 int
2946 setconfquirk(char *selector, char *value, int flags)
2947 {
2948         char                    *cp, *class, *name;
2949         int                     retval;
2950         unsigned long           quirks;
2951         if (selector == NULL)
2952                 return (0);
2953         if ((cp = strchr(selector, ':')) == NULL)
2954                 return (0);
2955         *cp = '\0';
2956         class = selector;
2957         name = cp + 1;
2958         if ((retval = parsequirks(value, &quirks)) == 0)
2959                 setquirk(class, name, quirks);
2960         return (retval);
2961 }
2962
2963 void
2964 setup_quirks(void)
2965 {
2966         setquirk("MPlayer",             "xv",           SWM_Q_FLOAT | SWM_Q_FULLSCREEN);
2967         setquirk("OpenOffice.org 2.4",  "VCLSalFrame",  SWM_Q_FLOAT);
2968         setquirk("OpenOffice.org 3.0",  "VCLSalFrame",  SWM_Q_FLOAT);
2969         setquirk("Firefox-bin",         "firefox-bin",  SWM_Q_TRANSSZ);
2970         setquirk("Firefox",             "Dialog",       SWM_Q_FLOAT);
2971         setquirk("Gimp",                "gimp",         SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2972         setquirk("XTerm",               "xterm",        SWM_Q_XTERM_FONTADJ);
2973         setquirk("xine",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2974         setquirk("Xitk",                "Xitk Combo",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2975         setquirk("xine",                "xine Panel",   SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2976         setquirk("Xitk",                "Xine Window",  SWM_Q_FLOAT | SWM_Q_ANYWHERE);
2977         setquirk("xine",                "xine Video Fullscreen Window", SWM_Q_FULLSCREEN | SWM_Q_FLOAT);
2978         setquirk("pcb",                 "pcb",          SWM_Q_FLOAT);
2979 }
2980
2981 /* conf file stuff */
2982 #define SWM_CONF_FILE   "scrotwm.conf"
2983
2984 enum    { SWM_S_BAR_DELAY, SWM_S_BAR_ENABLED, SWM_S_STACK_ENABLED,
2985           SWM_S_CLOCK_ENABLED, SWM_S_CYCLE_EMPTY, SWM_S_CYCLE_VISIBLE,
2986           SWM_S_SS_ENABLED, SWM_S_TERM_WIDTH, SWM_S_TITLE_CLASS_ENABLED,
2987           SWM_S_TITLE_NAME_ENABLED, SWM_S_BAR_FONT, SWM_S_BAR_ACTION,
2988           SWM_S_SPAWN_TERM, SWM_S_SS_APP, SWM_S_DIALOG_RATIO };
2989
2990 int
2991 setconfvalue(char *selector, char *value, int flags)
2992 {
2993         switch (flags) {
2994         case SWM_S_BAR_DELAY:
2995                 bar_delay = atoi(value);
2996                 break;
2997         case SWM_S_BAR_ENABLED:
2998                 bar_enabled = atoi(value);
2999                 break;
3000         case SWM_S_STACK_ENABLED:
3001                 stack_enabled = atoi(value);
3002                 break;
3003         case SWM_S_CLOCK_ENABLED:
3004                 clock_enabled = atoi(value);
3005                 break;
3006         case SWM_S_CYCLE_EMPTY:
3007                 cycle_empty = atoi(value);
3008                 break;
3009         case SWM_S_CYCLE_VISIBLE:
3010                 cycle_visible = atoi(value);
3011                 break;
3012         case SWM_S_SS_ENABLED:
3013                 ss_enabled = atoi(value);
3014                 break;
3015         case SWM_S_TERM_WIDTH:
3016                 term_width = atoi(value);
3017                 break;
3018         case SWM_S_TITLE_CLASS_ENABLED:
3019                 title_class_enabled = atoi(value);
3020                 break;
3021         case SWM_S_TITLE_NAME_ENABLED:
3022                 title_name_enabled = atoi(value);
3023                 break;
3024         case SWM_S_BAR_FONT:
3025                 free(bar_fonts[0]);
3026                 if ((bar_fonts[0] = strdup(value)) == NULL)
3027                         err(1, "setconfvalue: bar_font");
3028                 break;
3029         case SWM_S_BAR_ACTION:
3030                 free(bar_argv[0]);
3031                 if ((bar_argv[0] = strdup(value)) == NULL)
3032                         err(1, "setconfvalue: bar_action");
3033                 break;
3034         case SWM_S_SPAWN_TERM:
3035                 free(spawn_term[0]);
3036                 if ((spawn_term[0] = strdup(value)) == NULL)
3037                         err(1, "setconfvalue: spawn_term");
3038                 break;
3039         case SWM_S_SS_APP:
3040                 break;
3041         case SWM_S_DIALOG_RATIO:
3042                 dialog_ratio = atof(value);
3043                 if (dialog_ratio > 1.0 || dialog_ratio <= .3)
3044                         dialog_ratio = .6;
3045                 break;
3046         default:
3047                 return (1);
3048         }
3049         return (0);
3050 }
3051
3052 int
3053 setconfmodkey(char *selector, char *value, int flags)
3054 {
3055         if (!strncasecmp(value, "Mod1", strlen("Mod1")))
3056                 update_modkey(Mod1Mask);
3057         else if (!strncasecmp(value, "Mod2", strlen("Mod2")))
3058                 update_modkey(Mod2Mask);
3059         else if (!strncasecmp(value, "Mod3", strlen("Mod3")))
3060                 update_modkey(Mod3Mask);
3061         else if (!strncasecmp(value, "Mod4", strlen("Mod4")))
3062                 update_modkey(Mod4Mask);
3063         else
3064                 return (1);
3065         return (0);
3066 }
3067
3068 int
3069 setconfcolor(char *selector, char *value, int flags)
3070 {
3071         setscreencolor(value, ((selector == NULL)?-1:atoi(selector)), flags);
3072         return (0);
3073 }
3074
3075 int
3076 setconfregion(char *selector, char *value, int flags)
3077 {
3078         custom_region(value);
3079         return (0);
3080 }
3081
3082 /* config options */
3083 struct config_option {
3084         char                    *optname;
3085         int (*func)(char*, char*, int);
3086         int funcflags;
3087 };
3088 struct config_option configopt[] = {
3089         { "bar_enabled",                setconfvalue,   SWM_S_BAR_ENABLED },
3090         { "bar_border",                 setconfcolor,   SWM_S_COLOR_BAR_BORDER },
3091         { "bar_color",                  setconfcolor,   SWM_S_COLOR_BAR },
3092         { "bar_font_color",             setconfcolor,   SWM_S_COLOR_BAR_FONT },
3093         { "bar_font",                   setconfvalue,   SWM_S_BAR_FONT },
3094         { "bar_action",                 setconfvalue,   SWM_S_BAR_ACTION },
3095         { "bar_delay",                  setconfvalue,   SWM_S_BAR_DELAY },
3096         { "bind",                       setconfbinding, 0 },
3097         { "stack_enabled",              setconfvalue,   SWM_S_STACK_ENABLED },
3098         { "clock_enabled",              setconfvalue,   SWM_S_CLOCK_ENABLED },
3099         { "color_focus",                setconfcolor,   SWM_S_COLOR_FOCUS },
3100         { "color_unfocus",              setconfcolor,   SWM_S_COLOR_UNFOCUS },
3101         { "cycle_empty",                setconfvalue,   SWM_S_CYCLE_EMPTY },
3102         { "cycle_visible",              setconfvalue,   SWM_S_CYCLE_VISIBLE },
3103         { "dialog_ratio",               setconfvalue,   SWM_S_DIALOG_RATIO },
3104         { "modkey",                     setconfmodkey,  0 },
3105         { "program",                    setconfspawn,   0 },
3106         { "quirk",                      setconfquirk,   0 },
3107         { "region",                     setconfregion,  0 },
3108         { "spawn_term",                 setconfvalue,   SWM_S_SPAWN_TERM },
3109         { "screenshot_enabled",         setconfvalue,   SWM_S_SS_ENABLED },
3110         { "screenshot_app",             setconfvalue,   SWM_S_SS_APP },
3111         { "term_width",                 setconfvalue,   SWM_S_TERM_WIDTH },
3112         { "title_class_enabled",        setconfvalue,   SWM_S_TITLE_CLASS_ENABLED },
3113         { "title_name_enabled",         setconfvalue,   SWM_S_TITLE_NAME_ENABLED }
3114 };
3115
3116
3117 int
3118 conf_load(char *filename)
3119 {
3120         FILE                    *config;
3121         char                    *line, *cp, *optsub, *optval;
3122         size_t                  linelen, lineno = 0;
3123         int                     wordlen, i, optind;
3124         struct config_option    *opt;
3125
3126         DNPRINTF(SWM_D_CONF, "conf_load begin\n");
3127
3128         if (filename == NULL) {
3129                 fprintf(stderr, "conf_load: no filename\n");
3130                 return (1);
3131         }
3132         if ((config = fopen(filename, "r")) == NULL) {
3133                 warn("conf_load: fopen");
3134                 return (1);
3135         }
3136
3137         while (!feof(config)) {
3138                 if ((line = fparseln(config, &linelen, &lineno, NULL, 0))
3139                     == NULL) {
3140                         if (ferror(config))
3141                                 err(1, "%s", filename);
3142                         else
3143                                 continue;
3144                 }
3145                 cp = line;
3146                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3147                 if (cp[0] == '\0') {
3148                         /* empty line */
3149                         free(line);
3150                         continue;
3151                 }
3152                 /* get config option */
3153                 wordlen = strcspn(cp, "=[ \t\n");
3154                 if (wordlen == 0) {
3155                         warnx("%s: line %zd: no option found",
3156                             filename, lineno);
3157                         return (1);
3158                 }
3159                 optind = -1;
3160                 for (i = 0; i < LENGTH(configopt); i++) {
3161                         opt = &configopt[i];
3162                         if (!strncasecmp(cp, opt->optname, wordlen) &&
3163                             strlen(opt->optname) == wordlen) {
3164                                 optind = i;
3165                                 break;
3166                         }
3167                 }
3168                 if (optind == -1) {
3169                         warnx("%s: line %zd: unknown option %.*s",
3170                             filename, lineno, wordlen, cp);
3171                         return (1);
3172                 }
3173                 cp += wordlen;
3174                 cp += strspn(cp, " \t\n"); /* eat whitespace */
3175                 /* get [selector] if any */
3176                 optsub = NULL;
3177                 if (*cp == '[') {
3178                         cp++;
3179                         wordlen = strcspn(cp, "]");
3180                         if (*cp != ']') {
3181                                 if (wordlen == 0) {
3182                                         warnx("%s: line %zd: syntax error",
3183                                             filename, lineno);
3184                                         return (1);
3185                                 }
3186                                 asprintf(&optsub, "%.*s", wordlen, cp);
3187                         }
3188                         cp += wordlen;
3189                         cp += strspn(cp, "] \t\n"); /* eat trailing */
3190                 }
3191                 cp += strspn(cp, "= \t\n"); /* eat trailing */
3192                 /* get RHS value */
3193                 optval = strdup(cp);
3194                 /* call function to deal with it all */
3195                 if (configopt[optind].func(optsub, optval,
3196                     configopt[optind].funcflags) != 0) {
3197                         fprintf(stderr, "%s line %zd: %s\n",
3198                             filename, lineno, line);
3199                         errx(1, "%s: line %zd: invalid data for %s",
3200                             filename, lineno, configopt[optind].optname);
3201                 }
3202                 free(optval);
3203                 free(optsub);
3204                 free(line);
3205         }
3206
3207         fclose(config);
3208         DNPRINTF(SWM_D_CONF, "conf_load end\n");
3209
3210         return (0);
3211 }
3212
3213 struct ws_win *
3214 manage_window(Window id)
3215 {
3216         Window                  trans = 0;
3217         struct workspace        *ws;
3218         struct ws_win           *win, *ww;
3219         int                     format, i, ws_idx, n, border_me = 0;
3220         unsigned long           nitems, bytes;
3221         Atom                    ws_idx_atom = 0, type;
3222         Atom                    *prot = NULL, *pp;
3223         unsigned char           ws_idx_str[SWM_PROPLEN], *prop = NULL;
3224         struct swm_region       *r;
3225         long                    mask;
3226         const char              *errstr;
3227         XWindowChanges          wc;
3228
3229         if ((win = find_window(id)) != NULL)
3230                         return (win);   /* already being managed */
3231
3232         if ((win = calloc(1, sizeof(struct ws_win))) == NULL)
3233                 errx(1, "calloc: failed to allocate memory for new window");
3234
3235         /* Get all the window data in one shot */
3236         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3237         if (ws_idx_atom)
3238                 XGetWindowProperty(display, id, ws_idx_atom, 0, SWM_PROPLEN,
3239                     False, XA_STRING, &type, &format, &nitems, &bytes, &prop);
3240         XGetWindowAttributes(display, id, &win->wa);
3241         XGetWMNormalHints(display, id, &win->sh, &mask);
3242         XGetTransientForHint(display, id, &trans);
3243         if (trans) {
3244                 win->transient = trans;
3245                 DNPRINTF(SWM_D_MISC, "manage_window: win %u transient %u\n",
3246                     (unsigned)win->id, win->transient);
3247         }
3248         /* get supported protocols */
3249         if (XGetWMProtocols(display, id, &prot, &n)) {
3250                 for (i = 0, pp = prot; i < n; i++, pp++)
3251                         if (*pp == adelete)
3252                                 win->can_delete = 1;
3253                 if (prot)
3254                         XFree(prot);
3255         }
3256
3257         /*
3258          * Figure out where to put the window. If it was previously assigned to
3259          * a workspace (either by spawn() or manually moving), and isn't
3260          * transient, * put it in the same workspace
3261          */
3262         r = root_to_region(win->wa.root);
3263         if (prop && win->transient == 0) {
3264                 DNPRINTF(SWM_D_PROP, "got property _SWM_WS=%s\n", prop);
3265                 ws_idx = strtonum(prop, 0, 9, &errstr);
3266                 if (errstr) {
3267                         DNPRINTF(SWM_D_EVENT, "window idx is %s: %s",
3268                             errstr, prop);
3269                 }
3270                 ws = &r->s->ws[ws_idx];
3271         } else {
3272                 ws = r->ws;
3273                 /* this should launch transients in the same ws as parent */
3274                 if (id && trans)
3275                         if ((ww = find_window(trans)) != NULL)
3276                                 if (ws->r) {
3277                                         ws = ww->ws;
3278                                         if (ww->ws->r)
3279                                                 r = ww->ws->r;
3280                                         else
3281                                                 fprintf(stderr,
3282                                                     "fix this bug mcbride\n");
3283                                         border_me = 1;
3284                                 }
3285         }
3286
3287         /* set up the window layout */
3288         win->id = id;
3289         win->ws = ws;
3290         win->s = r->s;  /* this never changes */
3291         TAILQ_INSERT_TAIL(&ws->winlist, win, entry);
3292
3293         win->g.w = win->wa.width;
3294         win->g.h = win->wa.height;
3295         win->g.x = win->wa.x;
3296         win->g.y = win->wa.y;
3297
3298         /* Set window properties so we can remember this after reincarnation */
3299         if (ws_idx_atom && prop == NULL &&
3300             snprintf(ws_idx_str, SWM_PROPLEN, "%d", ws->idx) < SWM_PROPLEN) {
3301                 DNPRINTF(SWM_D_PROP, "setting property _SWM_WS to %s\n",
3302                     ws_idx_str);
3303                 XChangeProperty(display, win->id, ws_idx_atom, XA_STRING, 8,
3304                     PropModeReplace, ws_idx_str, SWM_PROPLEN);
3305         }
3306         XFree(prop);
3307
3308         if (XGetClassHint(display, win->id, &win->ch)) {
3309                 DNPRINTF(SWM_D_CLASS, "class: %s name: %s\n",
3310                     win->ch.res_class, win->ch.res_name);
3311                 for (i = 0; i < quirks_length; i++){
3312                         if (!strcmp(win->ch.res_class, quirks[i].class) &&
3313                             !strcmp(win->ch.res_name, quirks[i].name)) {
3314                                 DNPRINTF(SWM_D_CLASS, "found: %s name: %s\n",
3315                                     win->ch.res_class, win->ch.res_name);
3316                                 if (quirks[i].quirk & SWM_Q_FLOAT)
3317                                         win->floating = 1;
3318                                 win->quirks = quirks[i].quirk;
3319                         }
3320                 }
3321         }
3322
3323         /* alter window position if quirky */
3324         if (win->quirks & SWM_Q_ANYWHERE) {
3325                 win->manual = 1; /* don't center the quirky windows */
3326                 bzero(&wc, sizeof wc);
3327                 mask = 0;
3328                 if (win->g.y < bar_height) {
3329                         win->g.y = wc.y = bar_height;
3330                         mask |= CWY;
3331                 }
3332                 if (win->g.w + win->g.x > WIDTH(r)) {
3333                         win->g.x = wc.x = WIDTH(r) - win->g.w - 2;
3334                         mask |= CWX;
3335                 }
3336                 border_me = 1;
3337         }
3338
3339         /* Reset font sizes (the bruteforce way; no default keybinding). */
3340         if (win->quirks & SWM_Q_XTERM_FONTADJ) {
3341                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3342                         fake_keypress(win, XK_KP_Subtract, ShiftMask);
3343                 for (i = 0; i < SWM_MAX_FONT_STEPS; i++)
3344                         fake_keypress(win, XK_KP_Add, ShiftMask);
3345         }
3346
3347         /* border me */
3348         if (border_me) {
3349                 bzero(&wc, sizeof wc);
3350                 wc.border_width = 1;
3351                 mask = CWBorderWidth;
3352                 XConfigureWindow(display, win->id, mask, &wc);
3353         }
3354
3355         XSelectInput(display, id, EnterWindowMask | FocusChangeMask |
3356             PropertyChangeMask | StructureNotifyMask);
3357
3358         set_win_state(win, NormalState);
3359
3360         /* floaters need to be mapped if they are in the current workspace */
3361         if ((win->floating || win->transient) && (ws->idx == r->ws->idx))
3362                 XMapRaised(display, win->id);
3363
3364         return (win);
3365 }
3366
3367 void
3368 unmanage_window(struct ws_win *win)
3369 {
3370         struct workspace        *ws;
3371
3372         if (win == NULL)
3373                 return;
3374
3375         DNPRINTF(SWM_D_MISC, "unmanage_window:  %lu\n", win->id);
3376
3377         ws = win->ws;
3378         TAILQ_REMOVE(&win->ws->winlist, win, entry);
3379         set_win_state(win, WithdrawnState);
3380         if (win->ch.res_class)
3381                 XFree(win->ch.res_class);
3382         if (win->ch.res_name)
3383                 XFree(win->ch.res_name);
3384         free(win);
3385 }
3386
3387 void
3388 expose(XEvent *e)
3389 {
3390         DNPRINTF(SWM_D_EVENT, "expose: window: %lu\n", e->xexpose.window);
3391 }
3392
3393 void
3394 keypress(XEvent *e)
3395 {
3396         unsigned int            i;
3397         KeySym                  keysym;
3398         XKeyEvent               *ev = &e->xkey;
3399
3400         DNPRINTF(SWM_D_EVENT, "keypress: window: %lu\n", ev->window);
3401
3402         keysym = XKeycodeToKeysym(display, (KeyCode)ev->keycode, 0);
3403         for (i = 0; i < keys_length; i++)
3404                 if (keysym == keys[i].keysym
3405                    && CLEANMASK(keys[i].mod) == CLEANMASK(ev->state)
3406                    && keyfuncs[keys[i].funcid].func) {
3407                         if (keys[i].funcid == kf_spawn_custom)
3408                                 spawn_custom(
3409                                     root_to_region(ev->root),
3410                                     &(keyfuncs[keys[i].funcid].args),
3411                                     keys[i].spawn_name
3412                                     );
3413                         else
3414                                 keyfuncs[keys[i].funcid].func(
3415                                     root_to_region(ev->root),
3416                                     &(keyfuncs[keys[i].funcid].args)
3417                                     );
3418                 }
3419 }
3420
3421 void
3422 buttonpress(XEvent *e)
3423 {
3424         XButtonPressedEvent     *ev = &e->xbutton;
3425
3426         struct ws_win           *win;
3427         int                     i, action;
3428
3429         DNPRINTF(SWM_D_EVENT, "buttonpress: window: %lu\n", ev->window);
3430
3431         action = root_click;
3432         if ((win = find_window(ev->window)) == NULL)
3433                 return;
3434         else {
3435                 focus_win(win);
3436                 action = client_click;
3437         }
3438
3439         for (i = 0; i < LENGTH(buttons); i++)
3440                 if (action == buttons[i].action && buttons[i].func &&
3441                     buttons[i].button == ev->button &&
3442                     CLEANMASK(buttons[i].mask) == CLEANMASK(ev->state))
3443                         buttons[i].func(win, &buttons[i].args);
3444 }
3445
3446 void
3447 configurerequest(XEvent *e)
3448 {
3449         XConfigureRequestEvent  *ev = &e->xconfigurerequest;
3450         struct ws_win           *win;
3451         int                     new = 0;
3452         XWindowChanges          wc;
3453
3454         if ((win = find_window(ev->window)) == NULL)
3455                 new = 1;
3456
3457         if (new) {
3458                 DNPRINTF(SWM_D_EVENT, "configurerequest: new window: %lu\n",
3459                     ev->window);
3460                 bzero(&wc, sizeof wc);
3461                 wc.x = ev->x;
3462                 wc.y = ev->y;
3463                 wc.width = ev->width;
3464                 wc.height = ev->height;
3465                 wc.border_width = ev->border_width;
3466                 wc.sibling = ev->above;
3467                 wc.stack_mode = ev->detail;
3468                 XConfigureWindow(display, ev->window, ev->value_mask, &wc);
3469         } else {
3470                 DNPRINTF(SWM_D_EVENT, "configurerequest: change window: %lu\n",
3471                     ev->window);
3472                 if (win->floating) {
3473                         if (ev->value_mask & CWX)
3474                                 win->g.x = ev->x;
3475                         if (ev->value_mask & CWY)
3476                                 win->g.y = ev->y;
3477                         if (ev->value_mask & CWWidth)
3478                                 win->g.w = ev->width;
3479                         if (ev->value_mask & CWHeight)
3480                                 win->g.h = ev->height;
3481                         if (win->ws->r != NULL) {
3482                                 /* this seems to be full screen */
3483                                 if (win->g.w >= WIDTH(win->ws->r)) {
3484                                         win->g.x = 0;
3485                                         win->g.w = WIDTH(win->ws->r);
3486                                         ev->value_mask |= CWX | CWWidth;
3487                                 }
3488                                 if (win->g.h >= HEIGHT(win->ws->r)) {
3489                                         /* kill border */
3490                                         win->g.y = 0;
3491                                         win->g.h = HEIGHT(win->ws->r);
3492                                         ev->value_mask |= CWY | CWHeight;
3493                                 }
3494                         }
3495                         if ((ev->value_mask & (CWX | CWY)) &&
3496                             !(ev->value_mask & (CWWidth | CWHeight)))
3497                                 config_win(win);
3498                         XMoveResizeWindow(display, win->id,
3499                             win->g.x, win->g.y, win->g.w, win->g.h);
3500                 } else
3501                         config_win(win);
3502         }
3503 }
3504
3505 void
3506 configurenotify(XEvent *e)
3507 {
3508         struct ws_win           *win;
3509         long                    mask;
3510
3511         DNPRINTF(SWM_D_EVENT, "configurenotify: window: %lu\n",
3512             e->xconfigure.window);
3513
3514         XMapWindow(display, e->xconfigure.window);
3515         win = find_window(e->xconfigure.window);
3516         if (win) {
3517                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3518                 adjust_font(win);
3519                 XMapWindow(display, win->id);
3520                 if (font_adjusted)
3521                         stack();
3522         }
3523 }
3524
3525 void
3526 destroynotify(XEvent *e)
3527 {
3528         struct ws_win           *win, *winfocus = NULL;
3529         struct workspace        *ws;
3530         struct ws_win_list      *wl;
3531
3532         XDestroyWindowEvent     *ev = &e->xdestroywindow;
3533
3534         DNPRINTF(SWM_D_EVENT, "destroynotify: window %lu\n", ev->window);
3535
3536         SWM_EV_PROLOGUE(display);
3537
3538         if ((win = find_window(ev->window)) != NULL) {
3539                 /* find a window to focus */
3540                 ws = win->ws;
3541                 wl = &ws->winlist;
3542
3543                 /* if we are transient give focus to parent */
3544                 if (win->transient)
3545                         winfocus = find_window(win->transient);
3546                 else if (ws->focus == win) {
3547                         /* if in max_stack try harder */
3548                         if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3549                                 if (win != ws->focus && win != ws->focus_prev)
3550                                         winfocus = ws->focus_prev;
3551
3552                         /* fallback and normal handling */
3553                         if (winfocus == NULL) {
3554                                 if (TAILQ_FIRST(wl) == win)
3555                                         winfocus = TAILQ_NEXT(win, entry);
3556                                 else {
3557                                         winfocus = TAILQ_PREV(ws->focus,
3558                                             ws_win_list, entry);
3559                                         if (winfocus == NULL)
3560                                                 winfocus = TAILQ_LAST(wl,
3561                                                     ws_win_list);
3562                                 }
3563                         }
3564                 }
3565
3566                 unmanage_window(win);
3567                 stack();
3568                 if (winfocus)
3569                         focus_win(winfocus);
3570         }
3571
3572         SWM_EV_EPILOGUE(display);
3573 }
3574
3575 void
3576 enternotify(XEvent *e)
3577 {
3578         XCrossingEvent          *ev = &e->xcrossing;
3579         struct ws_win           *win;
3580
3581         DNPRINTF(SWM_D_EVENT, "enternotify: window: %lu\n", ev->window);
3582
3583         if (ignore_enter) {
3584                 /* eat event(r) to prevent autofocus */
3585                 ignore_enter = 0;
3586                 return;
3587         }
3588         /*
3589          * happens when a window is created or destroyed and the border
3590          * crosses the mouse pointer
3591          */
3592         if (QLength(display))
3593                 return;
3594
3595         if ((win = find_window(ev->window)) != NULL)
3596                 focus_win(win);
3597 }
3598
3599 void
3600 focusin(XEvent *e)
3601 {
3602         DNPRINTF(SWM_D_EVENT, "focusin: window: %lu\n", e->xfocus.window);
3603 }
3604
3605 void
3606 focusout(XEvent *e)
3607 {
3608         DNPRINTF(SWM_D_EVENT, "focusout: window: %lu\n", e->xfocus.window);
3609 }
3610
3611 void
3612 mapnotify(XEvent *e)
3613 {
3614         struct ws_win           *win;
3615         XMappingEvent           *ev = &e->xmapping;
3616
3617         DNPRINTF(SWM_D_EVENT, "mapnotify: window: %lu\n", ev->window);
3618
3619         SWM_EV_PROLOGUE(display);
3620
3621         win = find_window(ev->window);
3622         if (win)
3623                 set_win_state(win, NormalState);
3624
3625         XRefreshKeyboardMapping(ev);
3626         if (ev->request == MappingKeyboard)
3627                 grabkeys();
3628
3629         SWM_EV_EPILOGUE(display);
3630 }
3631
3632 void
3633 maprequest(XEvent *e)
3634 {
3635         struct ws_win           *win;
3636         struct swm_region       *r;
3637
3638         XMapRequestEvent        *ev = &e->xmaprequest;
3639         XWindowAttributes       wa;
3640
3641         DNPRINTF(SWM_D_EVENT, "maprequest: window: %lu\n",
3642             e->xmaprequest.window);
3643
3644         SWM_EV_PROLOGUE(display);
3645
3646         if (!XGetWindowAttributes(display, ev->window, &wa))
3647                 goto done;
3648         if (wa.override_redirect)
3649                 goto done;
3650
3651         manage_window(e->xmaprequest.window);
3652
3653         stack();
3654
3655         /* make new win focused */
3656         win = find_window(ev->window);
3657         r = root_to_region(win->wa.root);
3658
3659         if (win->ws == r->ws)
3660                 focus_win(win);
3661
3662 done:
3663         SWM_EV_EPILOGUE(display);
3664 }
3665
3666 void
3667 propertynotify(XEvent *e)
3668 {
3669         struct ws_win           *win;
3670         XPropertyEvent          *ev = &e->xproperty;
3671
3672         DNPRINTF(SWM_D_EVENT, "propertynotify: window: %lu\n",
3673             ev->window);
3674
3675         if (ev->state == PropertyDelete)
3676                 return; /* ignore */
3677         win = find_window(ev->window);
3678         if (win == NULL)
3679                 return;
3680
3681         switch (ev->atom) {
3682         case XA_WM_NORMAL_HINTS:
3683 #if 0
3684                 long            mask;
3685                 XGetWMNormalHints(display, win->id, &win->sh, &mask);
3686                 fprintf(stderr, "normal hints: flag 0x%x\n", win->sh.flags);
3687                 if (win->sh.flags & PMinSize) {
3688                         win->g.w = win->sh.min_width;
3689                         win->g.h = win->sh.min_height;
3690                         fprintf(stderr, "min %d %d\n", win->g.w, win->g.h);
3691                 }
3692                 XMoveResizeWindow(display, win->id,
3693                     win->g.x, win->g.y, win->g.w, win->g.h);
3694 #endif
3695                 break;
3696         default:
3697                 break;
3698         }
3699 }
3700
3701 void
3702 unmapnotify(XEvent *e)
3703 {
3704         struct ws_win           *win, *winfocus = NULL;
3705         struct workspace        *ws;
3706
3707         DNPRINTF(SWM_D_EVENT, "unmapnotify: window: %lu\n", e->xunmap.window);
3708
3709         SWM_EV_PROLOGUE(display);
3710
3711         /* determine if we need to help unmanage this window */
3712         win = find_window(e->xunmap.window);
3713         if (win == NULL)
3714                 goto done;
3715
3716         if (getstate(e->xunmap.window) == NormalState) {
3717                 /*
3718                  * this window does not have a destroy event but but it is no
3719                  * longer visible due to the app unmapping it so unmanage it
3720                  */
3721
3722                 ws = win->ws;
3723                 /* if we are max_stack try harder to focus on something */
3724                 if (ws->cur_layout->flags & SWM_L_FOCUSPREV)
3725                         if (win != ws->focus && win != ws->focus_prev)
3726                                 winfocus = ws->focus_prev;
3727
3728                 /* normal and fallback if haven't found anything to focus on */
3729                 if (winfocus == NULL) {
3730                         winfocus = TAILQ_PREV(win, ws_win_list, entry);
3731                         if (TAILQ_FIRST(&ws->winlist) == win)
3732                                 winfocus = TAILQ_NEXT(win, entry);
3733                         else {
3734                                 if (ws->focus)
3735                                         winfocus = TAILQ_PREV(ws->focus,
3736                                             ws_win_list, entry);
3737                                 if (winfocus == NULL)
3738                                         winfocus = TAILQ_LAST(&ws->winlist,
3739                                             ws_win_list);
3740                         }
3741                 }
3742
3743                 /* trash window and refocus */
3744                 unmanage_window(win);
3745                 stack();
3746                 focus_win(winfocus);
3747         }
3748
3749 done:
3750         SWM_EV_EPILOGUE(display);
3751 }
3752
3753 void
3754 visibilitynotify(XEvent *e)
3755 {
3756         int                     i;
3757         struct swm_region       *r;
3758
3759         DNPRINTF(SWM_D_EVENT, "visibilitynotify: window: %lu\n",
3760             e->xvisibility.window);
3761         if (e->xvisibility.state == VisibilityUnobscured)
3762                 for (i = 0; i < ScreenCount(display); i++)
3763                         TAILQ_FOREACH(r, &screens[i].rl, entry)
3764                                 if (e->xvisibility.window == r->bar_window)
3765                                         bar_update();
3766 }
3767
3768 int
3769 xerror_start(Display *d, XErrorEvent *ee)
3770 {
3771         other_wm = 1;
3772         return (-1);
3773 }
3774
3775 int
3776 xerror(Display *d, XErrorEvent *ee)
3777 {
3778         /* fprintf(stderr, "error: %p %p\n", display, ee); */
3779         return (-1);
3780 }
3781
3782 int
3783 active_wm(void)
3784 {
3785         other_wm = 0;
3786         xerrorxlib = XSetErrorHandler(xerror_start);
3787
3788         /* this causes an error if some other window manager is running */
3789         XSelectInput(display, DefaultRootWindow(display),
3790             SubstructureRedirectMask);
3791         XSync(display, False);
3792         if (other_wm)
3793                 return (1);
3794
3795         XSetErrorHandler(xerror);
3796         XSync(display, False);
3797         return (0);
3798 }
3799
3800 void
3801 new_region(struct swm_screen *s, int x, int y, int w, int h)
3802 {
3803         struct swm_region       *r, *n;
3804         struct workspace        *ws = NULL;
3805         int                     i;
3806
3807         DNPRINTF(SWM_D_MISC, "new region: screen[%d]:%dx%d+%d+%d\n",
3808              s->idx, w, h, x, y);
3809
3810         /* remove any conflicting regions */
3811         n = TAILQ_FIRST(&s->rl);
3812         while (n) {
3813                 r = n;
3814                 n = TAILQ_NEXT(r, entry);
3815                 if (X(r) < (x + w) &&
3816                     (X(r) + WIDTH(r)) > x &&
3817                     Y(r) < (y + h) &&
3818                     (Y(r) + HEIGHT(r)) > y) {
3819                         XDestroyWindow(display, r->bar_window);
3820                         TAILQ_REMOVE(&s->rl, r, entry);
3821                         TAILQ_INSERT_TAIL(&s->orl, r, entry);
3822                 }
3823         }
3824
3825         /* search old regions for one to reuse */
3826
3827         /* size + location match */
3828         TAILQ_FOREACH(r, &s->orl, entry)
3829                 if (X(r) == x && Y(r) == y &&
3830                     HEIGHT(r) == h && WIDTH(r) == w)
3831                         break;
3832
3833         /* size match */
3834         TAILQ_FOREACH(r, &s->orl, entry)
3835                 if (HEIGHT(r) == h && WIDTH(r) == w)
3836                         break;
3837
3838         if (r != NULL) {
3839                 TAILQ_REMOVE(&s->orl, r, entry);
3840                 /* try to use old region's workspace */
3841                 if (r->ws->r == NULL)
3842                         ws = r->ws;
3843         } else
3844                 if ((r = calloc(1, sizeof(struct swm_region))) == NULL)
3845                         errx(1, "calloc: failed to allocate memory for screen");
3846
3847         /* if we don't have a workspace already, find one */
3848         if (ws == NULL) {
3849                 for (i = 0; i < SWM_WS_MAX; i++)
3850                         if (s->ws[i].r == NULL) {
3851                                 ws = &s->ws[i];
3852                                 break;
3853                         }
3854         }
3855
3856         if (ws == NULL)
3857                 errx(1, "no free workspaces\n");
3858
3859         X(r) = x;
3860         Y(r) = y;
3861         WIDTH(r) = w;
3862         HEIGHT(r) = h;
3863         r->s = s;
3864         r->ws = ws;
3865         ws->r = r;
3866         TAILQ_INSERT_TAIL(&s->rl, r, entry);
3867 }
3868
3869 void
3870 scan_xrandr(int i)
3871 {
3872 #ifdef SWM_XRR_HAS_CRTC
3873         XRRCrtcInfo             *ci;
3874         XRRScreenResources      *sr;
3875         int                     c;
3876         int                     ncrtc = 0;
3877 #endif /* SWM_XRR_HAS_CRTC */
3878         struct swm_region       *r;
3879
3880
3881         if (i >= ScreenCount(display))
3882                 errx(1, "invalid screen");
3883
3884         /* remove any old regions */
3885         while ((r = TAILQ_FIRST(&screens[i].rl)) != NULL) {
3886                 r->ws->old_r = r->ws->r = NULL;
3887                 XDestroyWindow(display, r->bar_window);
3888                 TAILQ_REMOVE(&screens[i].rl, r, entry);
3889                 TAILQ_INSERT_TAIL(&screens[i].orl, r, entry);
3890         }
3891
3892         /* map virtual screens onto physical screens */
3893 #ifdef SWM_XRR_HAS_CRTC
3894         outputs = 0;
3895         if (xrandr_support) {
3896                 sr = XRRGetScreenResources(display, screens[i].root);
3897                 if (sr == NULL)
3898                         new_region(&screens[i], 0, 0,
3899                             DisplayWidth(display, i),
3900                             DisplayHeight(display, i));
3901                 else
3902                         ncrtc = sr->ncrtc;
3903
3904                 for (c = 0, ci = NULL; c < ncrtc; c++) {
3905                         ci = XRRGetCrtcInfo(display, sr, sr->crtcs[c]);
3906                         if (ci->noutput == 0)
3907                                 continue;
3908                         outputs++;
3909
3910                         if (ci != NULL && ci->mode == None)
3911                                 new_region(&screens[i], 0, 0,
3912                                     DisplayWidth(display, i),
3913                                     DisplayHeight(display, i));
3914                         else
3915                                 new_region(&screens[i],
3916                                     ci->x, ci->y, ci->width, ci->height);
3917                 }
3918                 if (ci)
3919                         XRRFreeCrtcInfo(ci);
3920                 XRRFreeScreenResources(sr);
3921         } else
3922 #endif /* SWM_XRR_HAS_CRTC */
3923         {
3924                 new_region(&screens[i], 0, 0, DisplayWidth(display, i),
3925                     DisplayHeight(display, i));
3926         }
3927 }
3928
3929 void
3930 screenchange(XEvent *e) {
3931         XRRScreenChangeNotifyEvent      *xe = (XRRScreenChangeNotifyEvent *)e;
3932         struct swm_region               *r;
3933         int                             i;
3934
3935         DNPRINTF(SWM_D_EVENT, "screenchange: %lu\n", xe->root);
3936
3937         if (!XRRUpdateConfiguration(e))
3938                 return;
3939
3940         /* silly event doesn't include the screen index */
3941         for (i = 0; i < ScreenCount(display); i++)
3942                 if (screens[i].root == xe->root)
3943                         break;
3944         if (i >= ScreenCount(display))
3945                 errx(1, "screenchange: screen not found\n");
3946
3947         /* brute force for now, just re-enumerate the regions */
3948         scan_xrandr(i);
3949
3950         /* add bars to all regions */
3951         for (i = 0; i < ScreenCount(display); i++)
3952                 TAILQ_FOREACH(r, &screens[i].rl, entry)
3953                         bar_setup(r);
3954         stack();
3955 }
3956
3957 void
3958 setup_screens(void)
3959 {
3960         Window                  d1, d2, *wins = NULL;
3961         XWindowAttributes       wa;
3962         unsigned int            no;
3963         int                     i, j, k;
3964         int                     errorbase, major, minor;
3965         struct workspace        *ws;
3966         int                     ws_idx_atom;
3967         long                    state, manage;
3968
3969         if ((screens = calloc(ScreenCount(display),
3970              sizeof(struct swm_screen))) == NULL)
3971                 errx(1, "calloc: screens");
3972
3973         ws_idx_atom = XInternAtom(display, "_SWM_WS", False);
3974
3975         /* initial Xrandr setup */
3976         xrandr_support = XRRQueryExtension(display,
3977             &xrandr_eventbase, &errorbase);
3978         if (xrandr_support)
3979                 if (XRRQueryVersion(display, &major, &minor) && major < 1)
3980                         xrandr_support = 0;
3981
3982         /* map physical screens */
3983         for (i = 0; i < ScreenCount(display); i++) {
3984                 DNPRINTF(SWM_D_WS, "setup_screens: init screen %d\n", i);
3985                 screens[i].idx = i;
3986                 TAILQ_INIT(&screens[i].rl);
3987                 TAILQ_INIT(&screens[i].orl);
3988                 screens[i].root = RootWindow(display, i);
3989
3990                 /* set default colors */
3991                 setscreencolor("red", i + 1, SWM_S_COLOR_FOCUS);
3992                 setscreencolor("rgb:88/88/88", i + 1, SWM_S_COLOR_UNFOCUS);
3993                 setscreencolor("rgb:00/80/80", i + 1, SWM_S_COLOR_BAR_BORDER);
3994                 setscreencolor("black", i + 1, SWM_S_COLOR_BAR);
3995                 setscreencolor("rgb:a0/a0/a0", i + 1, SWM_S_COLOR_BAR_FONT);
3996
3997                 /* init all workspaces */
3998                 /* XXX these should be dynamically allocated too */
3999                 for (j = 0; j < SWM_WS_MAX; j++) {
4000                         ws = &screens[i].ws[j];
4001                         ws->idx = j;
4002                         ws->restack = 1;
4003                         ws->focus = NULL;
4004                         ws->r = NULL;
4005                         ws->old_r = NULL;
4006                         TAILQ_INIT(&ws->winlist);
4007
4008                         for (k = 0; layouts[k].l_stack != NULL; k++)
4009                                 if (layouts[k].l_config != NULL)
4010                                         layouts[k].l_config(ws,
4011                                             SWM_ARG_ID_STACKINIT);
4012                         ws->cur_layout = &layouts[0];
4013                 }
4014                 /* grab existing windows (before we build the bars)*/
4015                 if (!XQueryTree(display, screens[i].root, &d1, &d2, &wins, &no))
4016                         continue;
4017
4018                 scan_xrandr(i);
4019
4020                 if (xrandr_support)
4021                         XRRSelectInput(display, screens[i].root,
4022                             RRScreenChangeNotifyMask);
4023
4024                 /* attach windows to a region */
4025                 /* normal windows */
4026                 for (j = 0; j < no; j++) {
4027                         XGetWindowAttributes(display, wins[j], &wa);
4028                         if (!XGetWindowAttributes(display, wins[j], &wa) ||
4029                             wa.override_redirect ||
4030                             XGetTransientForHint(display, wins[j], &d1))
4031                                 continue;
4032
4033                         state = getstate(wins[j]);
4034                         manage = state == NormalState || state == IconicState;
4035                         if (wa.map_state == IsViewable || manage)
4036                                 manage_window(wins[j]);
4037                 }
4038                 /* transient windows */
4039                 for (j = 0; j < no; j++) {
4040                         if (!XGetWindowAttributes(display, wins[j], &wa))
4041                                 continue;
4042
4043                         state = getstate(wins[j]);
4044                         manage = state == NormalState || state == IconicState;
4045                         if (XGetTransientForHint(display, wins[j], &d1) &&
4046                             manage)
4047                                 manage_window(wins[j]);
4048                 }
4049                 if (wins) {
4050                         XFree(wins);
4051                         wins = NULL;
4052                 }
4053         }
4054 }
4055 void
4056 setup_globals(void)
4057 {
4058         if ((bar_fonts[0] = strdup("-*-terminus-medium-*-*-*-*-*-*-*-*-*-*-*"))
4059             == NULL)
4060                 err(1, "setup_globals: strdup");
4061         if ((bar_fonts[1] = strdup("-*-times-medium-r-*-*-*-*-*-*-*-*-*-*"))
4062             == NULL)
4063                 err(1, "setup_globals: strdup");
4064         if ((bar_fonts[2] = strdup("-misc-fixed-medium-r-*-*-*-*-*-*-*-*-*-*"))
4065             == NULL)
4066                 err(1, "setup_globals: strdup");
4067         if ((spawn_term[0] = strdup("xterm")) == NULL)
4068                 err(1, "setup_globals: strdup");
4069 }
4070
4071 void
4072 workaround(void)
4073 {
4074         int                     i;
4075         Atom                    netwmcheck, netwmname, utf8_string;
4076         Window                  root;
4077
4078         /* work around sun jdk bugs, code from wmname */
4079         netwmcheck = XInternAtom(display, "_NET_SUPPORTING_WM_CHECK", False);
4080         netwmname = XInternAtom(display, "_NET_WM_NAME", False);
4081         utf8_string = XInternAtom(display, "UTF8_STRING", False);
4082         for (i = 0; i < ScreenCount(display); i++) {
4083                 root = screens[i].root;
4084                 XChangeProperty(display, root, netwmcheck, XA_WINDOW, 32,
4085                     PropModeReplace, (unsigned char *)&root, 1);
4086                 XChangeProperty(display, root, netwmname, utf8_string, 8,
4087                     PropModeReplace, "LG3D", strlen("LG3D"));
4088         }
4089 }
4090
4091 int
4092 main(int argc, char *argv[])
4093 {
4094         struct passwd           *pwd;
4095         struct swm_region       *r, *rr;
4096         struct ws_win           *winfocus = NULL;
4097         char                    conf[PATH_MAX], *cfile = NULL;
4098         struct stat             sb;
4099         XEvent                  e;
4100         int                     xfd, i;
4101         fd_set                  rd;
4102
4103         start_argv = argv;
4104         fprintf(stderr, "Welcome to scrotwm V%s cvs tag: %s\n",
4105             SWM_VERSION, cvstag);
4106         if (!setlocale(LC_CTYPE, "") || !XSupportsLocale())
4107                 warnx("no locale support");
4108
4109         if (!(display = XOpenDisplay(0)))
4110                 errx(1, "can not open display");
4111
4112         if (active_wm())
4113                 errx(1, "other wm running");
4114
4115         /* handle some signale */
4116         installsignal(SIGINT, "INT");
4117         installsignal(SIGHUP, "HUP");
4118         installsignal(SIGQUIT, "QUIT");
4119         installsignal(SIGTERM, "TERM");
4120         installsignal(SIGCHLD, "CHLD");
4121
4122         astate = XInternAtom(display, "WM_STATE", False);
4123         aprot = XInternAtom(display, "WM_PROTOCOLS", False);
4124         adelete = XInternAtom(display, "WM_DELETE_WINDOW", False);
4125
4126         /* look for local and global conf file */
4127         pwd = getpwuid(getuid());
4128         if (pwd == NULL)
4129                 errx(1, "invalid user %d", getuid());
4130
4131         setup_screens();
4132         setup_globals();
4133         setup_keys();
4134         setup_quirks();
4135         setup_spawn();
4136
4137         snprintf(conf, sizeof conf, "%s/.%s", pwd->pw_dir, SWM_CONF_FILE);
4138         if (stat(conf, &sb) != -1) {
4139                 if (S_ISREG(sb.st_mode))
4140                         cfile = conf;
4141         } else {
4142                 /* try global conf file */
4143                 snprintf(conf, sizeof conf, "/etc/%s", SWM_CONF_FILE);
4144                 if (!stat(conf, &sb))
4145                         if (S_ISREG(sb.st_mode))
4146                                 cfile = conf;
4147         }
4148         if (cfile)
4149                 conf_load(cfile);
4150
4151         /* setup all bars */
4152         for (i = 0; i < ScreenCount(display); i++)
4153                 TAILQ_FOREACH(r, &screens[i].rl, entry) {
4154                         if (winfocus == NULL)
4155                                 winfocus = TAILQ_FIRST(&r->ws->winlist);
4156                         bar_setup(r);
4157                 }
4158
4159         /* set some values to work around bad programs */
4160         workaround();
4161
4162         grabkeys();
4163         stack();
4164
4165         xfd = ConnectionNumber(display);
4166         while (running) {
4167                 while (XPending(display)) {
4168                         XNextEvent(display, &e);
4169                         if (running == 0)
4170                                 goto done;
4171                         if (e.type < LASTEvent) {
4172                                 dumpevent(&e);
4173                                 if (handler[e.type])
4174                                         handler[e.type](&e);
4175                                 else
4176                                         DNPRINTF(SWM_D_EVENT,
4177                                             "win: %lu unknown event: %d\n",
4178                                             e.xany.window, e.type);
4179                         } else {
4180                                 switch (e.type - xrandr_eventbase) {
4181                                 case RRScreenChangeNotify:
4182                                         screenchange(&e);
4183                                         break;
4184                                 default:
4185                                         DNPRINTF(SWM_D_EVENT,
4186                                             "win: %lu unknown xrandr event: "
4187                                             "%d\n", e.xany.window, e.type);
4188                                         break;
4189                                 }
4190                         }
4191                 }
4192
4193                 /* if we are being restarted go focus on first window */
4194                 if (winfocus) {
4195                         rr = TAILQ_FIRST(&screens[0].rl);
4196                         /* move pointer to first screen if multi screen */
4197                         if (ScreenCount(display) > 1 || outputs > 1)
4198                                 XWarpPointer(display, None, rr->s[0].root,
4199                                     0, 0, 0, 0, rr->g.x,
4200                                     rr->g.y + bar_enabled ? bar_height : 0);
4201
4202                         focus_win(winfocus);
4203                         winfocus = NULL;
4204                         continue;
4205                 }
4206
4207                 FD_ZERO(&rd);
4208                 FD_SET(xfd, &rd);
4209                 if (select(xfd + 1, &rd, NULL, NULL, NULL) == -1)
4210                         if (errno != EINTR)
4211                                 DNPRINTF(SWM_D_MISC, "select failed");
4212                 if (running == 0)
4213                         goto done;
4214                 if (bar_alarm) {
4215                         bar_alarm = 0;
4216                         bar_update();
4217                 }
4218         }
4219 done:
4220         bar_extra_stop();
4221
4222         XCloseDisplay(display);
4223
4224         return (0);
4225 }