scrotwm.c

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