openbox/client.c

   1 #include "client.h"
   2 #include "dock.h"
   3 #include "startup.h"
   4 #include "screen.h"
   5 #include "moveresize.h"
   6 #include "prop.h"
   7 #include "extensions.h"
   8 #include "frame.h"
   9 #include "event.h"
  10 #include "grab.h"
  11 #include "focus.h"
  12 #include "stacking.h"
  13 #include "dispatch.h"
  14 #include "openbox.h"
  15 #include "group.h"
  16 #include "config.h"
  17 #include "menu.h"
  18 #include "render/render.h"
  19
  20 #include <glib.h>
  21 #include <X11/Xutil.h>
  22
  23 /*! The event mask to grab on client windows */
  24 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
  25                           StructureNotifyMask)
  26
  27 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  28                                 ButtonMotionMask)
  29
  30 GList      *client_list      = NULL;
  31
  32 static void client_get_all(Client *self);
  33 static void client_toggle_border(Client *self, gboolean show);
  34 static void client_get_area(Client *self);
  35 static void client_get_desktop(Client *self);
  36 static void client_get_state(Client *self);
  37 static void client_get_shaped(Client *self);
  38 static void client_get_mwm_hints(Client *self);
  39 static void client_get_gravity(Client *self);
  40 static void client_showhide(Client *self);
  41 static void client_change_allowed_actions(Client *self);
  42 static void client_change_state(Client *self);
  43 static void client_apply_startup_state(Client *self);
  44
  45 void client_startup()
  46 {
  47     client_set_list();
  48 }
  49
  50 void client_shutdown()
  51 {
  52 }
  53
  54 void client_set_list()
  55 {
  56     Window *windows, *win_it;
  57     GList *it;
  58     guint size = g_list_length(client_list);
  59
  60     /* create an array of the window ids */
  61     if (size > 0) {
  62         windows = g_new(Window, size);
  63         win_it = windows;
  64         for (it = client_list; it != NULL; it = it->next, ++win_it)
  65             *win_it = ((Client*)it->data)->window;
  66     } else
  67         windows = NULL;
  68
  69     PROP_SETA32(ob_root, net_client_list, window, (guint32*)windows, size);
  70
  71     if (windows)
  72         g_free(windows);
  73
  74     stacking_set_list();
  75 }
  76
  77 /*
  78 void client_foreach_transient(Client *self, ClientForeachFunc func, void *data)
  79 {
  80     GSList *it;
  81
  82     for (it = self->transients; it; it = it->next) {
  83         if (!func(it->data, data)) return;
  84         client_foreach_transient(it->data, func, data);
  85     }
  86 }
  87
  88 void client_foreach_ancestor(Client *self, ClientForeachFunc func, void *data)
  89 {
  90     if (self->transient_for) {
  91         if (self->transient_for != TRAN_GROUP) {
  92             if (!func(self->transient_for, data)) return;
  93             client_foreach_ancestor(self->transient_for, func, data);
  94         } else {
  95             GSList *it;
  96
  97             for (it = self->group->members; it; it = it->next)
  98                 if (it->data != self &&
  99                     !((Client*)it->data)->transient_for) {
 100                     if (!func(it->data, data)) return;
 101                     client_foreach_ancestor(it->data, func, data);
 102                 }
 103         }
 104     }
 105 }
 106 */
 107
 108 void client_manage_all()
 109 {
 110     unsigned int i, j, nchild;
 111     Window w, *children;
 112     XWMHints *wmhints;
 113     XWindowAttributes attrib;
 114
 115     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
 116
 117     /* remove all icon windows from the list */
 118     for (i = 0; i < nchild; i++) {
 119         if (children[i] == None) continue;
 120         wmhints = XGetWMHints(ob_display, children[i]);
 121         if (wmhints) {
 122             if ((wmhints->flags & IconWindowHint) &&
 123                 (wmhints->icon_window != children[i]))
 124                 for (j = 0; j < nchild; j++)
 125                     if (children[j] == wmhints->icon_window) {
 126                         children[j] = None;
 127                         break;
 128                     }
 129             XFree(wmhints);
 130         }
 131     }
 132
 133     for (i = 0; i < nchild; ++i) {
 134         if (children[i] == None)
 135             continue;
 136         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 137             if (attrib.override_redirect) continue;
 138
 139             if (attrib.map_state != IsUnmapped)
 140                 client_manage(children[i]);
 141         }
 142     }
 143     XFree(children);
 144
 145     /* stack them as they were on startup!
 146        why with stacking_lower? Why, because then windows who aren't in the
 147        stacking list are on the top where you can see them instead of buried
 148        at the bottom! */
 149     for (i = startup_stack_size; i > 0; --i) {
 150         ObWindow *obw;
 151
 152         w = startup_stack_order[i-1];
 153         obw = g_hash_table_lookup(window_map, &w);
 154         if (obw) {
 155             g_assert(WINDOW_IS_CLIENT(obw));
 156             stacking_lower(CLIENT_AS_WINDOW(obw));
 157         }
 158     }
 159     g_free(startup_stack_order);
 160     startup_stack_order = NULL;
 161     startup_stack_size = 0;
 162
 163     if (config_focus_new) {
 164         ObWindow *active;
 165
 166         active = g_hash_table_lookup(window_map, &startup_active);
 167         if (active) {
 168             g_assert(WINDOW_IS_CLIENT(active));
 169             if (!client_focus(WINDOW_AS_CLIENT(active)))
 170                 focus_fallback(Fallback_NoFocus);
 171         } else
 172             focus_fallback(Fallback_NoFocus);
 173     }
 174 }
 175
 176 void client_manage(Window window)
 177 {
 178     Client *self;
 179     XEvent e;
 180     XWindowAttributes attrib;
 181     XSetWindowAttributes attrib_set;
 182     XWMHints *wmhint;
 183     gboolean activate = FALSE;
 184
 185     grab_server(TRUE);
 186
 187     /* check if it has already been unmapped by the time we started mapping
 188        the grab does a sync so we don't have to here */
 189     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 190         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
 191         XPutBackEvent(ob_display, &e);
 192
 193         grab_server(FALSE);
 194         return; /* don't manage it */
 195     }
 196
 197     /* make sure it isn't an override-redirect window */
 198     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 199         attrib.override_redirect) {
 200         grab_server(FALSE);
 201         return; /* don't manage it */
 202     }
 203
 204     /* is the window a docking app */
 205     if ((wmhint = XGetWMHints(ob_display, window))) {
 206         if ((wmhint->flags & StateHint) &&
 207             wmhint->initial_state == WithdrawnState) {
 208             dock_add(window, wmhint);
 209             grab_server(FALSE);
 210             XFree(wmhint);
 211             return;
 212         }
 213         XFree(wmhint);
 214     }
 215
 216     g_message("Managing window: %lx", window);
 217
 218     /* choose the events we want to receive on the CLIENT window */
 219     attrib_set.event_mask = CLIENT_EVENTMASK;
 220     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 221     XChangeWindowAttributes(ob_display, window,
 222                             CWEventMask|CWDontPropagate, &attrib_set);
 223
 224
 225     /* create the Client struct, and populate it from the hints on the
 226        window */
 227     self = g_new(Client, 1);
 228     self->obwin.type = Window_Client;
 229     self->window = window;
 230     client_get_all(self);
 231
 232     /* remove the client's border (and adjust re gravity) */
 233     client_toggle_border(self, FALSE);
 234
 235     /* specify that if we exit, the window should not be destroyed and should
 236        be reparented back to root automatically */
 237     XChangeSaveSet(ob_display, window, SetModeInsert);
 238
 239     /* create the decoration frame for the client window */
 240     self->frame = frame_new();
 241
 242     frame_grab_client(self->frame, self);
 243
 244     client_apply_startup_state(self);
 245
 246     grab_server(FALSE);
 247
 248     /* add to client list/map */
 249     client_list = g_list_append(client_list, self);
 250     g_hash_table_insert(window_map, &self->window, self);
 251
 252     /* update the focus lists */
 253     focus_order_add_new(self);
 254
 255     /* focus the new window? */
 256     if (ob_state != State_Starting && config_focus_new &&
 257         (self->type == Type_Normal || self->type == Type_Dialog)) {
 258         gboolean group_foc = FALSE;
 259
 260         if (self->group) {
 261             GSList *it;
 262
 263             for (it = self->group->members; it; it = it->next) {
 264                 if (client_focused(it->data)) {
 265                     group_foc = TRUE;
 266                     break;
 267                 }
 268             }
 269         }
 270         /* note the check against Type_Normal/Dialog, not client_normal(self),
 271            which would also include other types. in this case we want more
 272            strict rules for focus */
 273         if ((group_foc ||
 274              (!self->transient_for && (!self->group ||
 275                                        !self->group->members->next))) ||
 276             client_search_focus_tree_full(self) ||
 277             !focus_client ||
 278             !client_normal(focus_client)) {
 279             /* activate the window */
 280             stacking_add(CLIENT_AS_WINDOW(self));
 281             activate = TRUE;
 282         } else {
 283             /* try to not get in the way */
 284             stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
 285         }
 286     } else {
 287         stacking_add(CLIENT_AS_WINDOW(self));
 288     }
 289
 290     screen_update_struts();
 291
 292     /* make sure the window is visible */
 293     client_move_onscreen(self);
 294
 295     dispatch_client(Event_Client_New, self, 0, 0);
 296
 297     client_showhide(self);
 298
 299     if (activate) client_activate(self);
 300
 301     /* update the list hints */
 302     client_set_list();
 303
 304     dispatch_client(Event_Client_Mapped, self, 0, 0);
 305
 306     g_message("Managed window 0x%lx (%s)", window, self->class);
 307 }
 308
 309 void client_unmanage_all()
 310 {
 311     while (client_list != NULL)
 312         client_unmanage(client_list->data);
 313 }
 314
 315 /* called by client_unmanage() to close any menus referencing this client */
 316 void client_close_menus(gpointer key, gpointer value, gpointer self)
 317 {
 318     if (((Menu *)value)->client == (Client *)self)
 319         menu_hide((Menu *)value);
 320 }
 321
 322 void client_unmanage(Client *self)
 323 {
 324     int j;
 325     GSList *it;
 326
 327     g_message("Unmanaging window: %lx (%s)", self->window, self->class);
 328
 329     dispatch_client(Event_Client_Destroy, self, 0, 0);
 330     g_assert(self != NULL);
 331
 332     /* remove the window from our save set */
 333     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 334
 335     /* we dont want events no more */
 336     XSelectInput(ob_display, self->window, NoEventMask);
 337
 338     frame_hide(self->frame);
 339
 340     client_list = g_list_remove(client_list, self);
 341     stacking_remove(self);
 342     g_hash_table_remove(window_map, &self->window);
 343
 344     /* update the focus lists */
 345     focus_order_remove(self);
 346
 347     /* once the client is out of the list, update the struts to remove it's
 348        influence */
 349     screen_update_struts();
 350
 351     /* tell our parent(s) that we're gone */
 352     if (self->transient_for == TRAN_GROUP) { /* transient of group */
 353         GSList *it;
 354
 355         for (it = self->group->members; it; it = it->next)
 356             if (it->data != self)
 357                 ((Client*)it->data)->transients =
 358                     g_slist_remove(((Client*)it->data)->transients, self);
 359     } else if (self->transient_for) {        /* transient of window */
 360         self->transient_for->transients =
 361             g_slist_remove(self->transient_for->transients, self);
 362     }
 363
 364     /* tell our transients that we're gone */
 365     for (it = self->transients; it != NULL; it = it->next) {
 366         if (((Client*)it->data)->transient_for != TRAN_GROUP) {
 367             ((Client*)it->data)->transient_for = NULL;
 368             client_calc_layer(it->data);
 369         }
 370     }
 371
 372     if (moveresize_client == self)
 373         moveresize_end(TRUE);
 374
 375     /* close any windows that are attached to this window */
 376     g_hash_table_foreach(menu_hash, client_close_menus, self);
 377
 378
 379     if (focus_client == self) {
 380         XEvent e;
 381
 382         /* focus the last focused window on the desktop, and ignore enter
 383            events from the unmap so it doesnt mess with the focus */
 384         while (XCheckTypedEvent(ob_display, EnterNotify, &e));
 385         client_unfocus(self);
 386     }
 387
 388     /* remove from its group */
 389     if (self->group) {
 390         group_remove(self->group, self);
 391         self->group = NULL;
 392     }
 393
 394     /* dispatch the unmapped event */
 395     dispatch_client(Event_Client_Unmapped, self, 0, 0);
 396     g_assert(self != NULL);
 397
 398     /* give the client its border back */
 399     client_toggle_border(self, TRUE);
 400
 401     /* reparent the window out of the frame, and free the frame */
 402     frame_release_client(self->frame, self);
 403     self->frame = NULL;
 404
 405     if (ob_state != State_Exiting) {
 406         /* these values should not be persisted across a window
 407            unmapping/mapping */
 408         prop_erase(self->window, prop_atoms.net_wm_desktop);
 409         prop_erase(self->window, prop_atoms.net_wm_state);
 410     } else {
 411         /* if we're left in an iconic state, the client wont be mapped. this is
 412            bad, since we will no longer be managing the window on restart */
 413         if (self->iconic)
 414             XMapWindow(ob_display, self->window);
 415     }
 416
 417
 418     g_message("Unmanaged window 0x%lx", self->window);
 419
 420     /* free all data allocated in the client struct */
 421     g_slist_free(self->transients);
 422     for (j = 0; j < self->nicons; ++j)
 423         g_free(self->icons[j].data);
 424     if (self->nicons > 0)
 425         g_free(self->icons);
 426     g_free(self->title);
 427     g_free(self->icon_title);
 428     g_free(self->name);
 429     g_free(self->class);
 430     g_free(self->role);
 431     g_free(self);
 432
 433     /* update the list hints */
 434     client_set_list();
 435 }
 436
 437 void client_move_onscreen(Client *self)
 438 {
 439     Rect *a;
 440     int x = self->frame->area.x, y = self->frame->area.y;
 441
 442     a = screen_area(self->desktop);
 443     if (x >= a->x + a->width - 1)
 444         x = a->x + a->width - self->frame->area.width;
 445     if (y >= a->y + a->height - 1)
 446         y = a->y + a->height - self->frame->area.height;
 447     if (x + self->frame->area.width - 1 < a->x)
 448         x = a->x;
 449     if (y + self->frame->area.height - 1< a->y)
 450         y = a->y;
 451
 452     frame_frame_gravity(self->frame, &x, &y); /* get where the client
 453                                                  should be */
 454     client_configure(self , Corner_TopLeft, x, y,
 455                      self->area.width, self->area.height,
 456                      TRUE, TRUE);
 457 }
 458
 459 static void client_toggle_border(Client *self, gboolean show)
 460 {
 461     /* adjust our idea of where the client is, based on its border. When the
 462        border is removed, the client should now be considered to be in a
 463        different position.
 464        when re-adding the border to the client, the same operation needs to be
 465        reversed. */
 466     int oldx = self->area.x, oldy = self->area.y;
 467     int x = oldx, y = oldy;
 468     switch(self->gravity) {
 469     default:
 470     case NorthWestGravity:
 471     case WestGravity:
 472     case SouthWestGravity:
 473         break;
 474     case NorthEastGravity:
 475     case EastGravity:
 476     case SouthEastGravity:
 477         if (show) x -= self->border_width * 2;
 478         else      x += self->border_width * 2;
 479         break;
 480     case NorthGravity:
 481     case SouthGravity:
 482     case CenterGravity:
 483     case ForgetGravity:
 484     case StaticGravity:
 485         if (show) x -= self->border_width;
 486         else      x += self->border_width;
 487         break;
 488     }
 489     switch(self->gravity) {
 490     default:
 491     case NorthWestGravity:
 492     case NorthGravity:
 493     case NorthEastGravity:
 494         break;
 495     case SouthWestGravity:
 496     case SouthGravity:
 497     case SouthEastGravity:
 498         if (show) y -= self->border_width * 2;
 499         else      y += self->border_width * 2;
 500         break;
 501     case WestGravity:
 502     case EastGravity:
 503     case CenterGravity:
 504     case ForgetGravity:
 505     case StaticGravity:
 506         if (show) y -= self->border_width;
 507         else      y += self->border_width;
 508         break;
 509     }
 510     self->area.x = x;
 511     self->area.y = y;
 512
 513     if (show) {
 514         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 515
 516         /* move the client so it is back it the right spot _with_ its
 517            border! */
 518         if (x != oldx || y != oldy)
 519             XMoveWindow(ob_display, self->window, x, y);
 520     } else
 521         XSetWindowBorderWidth(ob_display, self->window, 0);
 522 }
 523
 524
 525 static void client_get_all(Client *self)
 526 {
 527     /* update EVERYTHING!! */
 528
 529     self->ignore_unmaps = 0;
 530
 531     /* defaults */
 532     self->frame = NULL;
 533     self->title = self->icon_title = NULL;
 534     self->title_count = 1;
 535     self->name = self->class = self->role = NULL;
 536     self->wmstate = NormalState;
 537     self->transient = FALSE;
 538     self->transients = NULL;
 539     self->transient_for = NULL;
 540     self->layer = -1;
 541     self->urgent = FALSE;
 542     self->positioned = FALSE;
 543     self->disabled_decorations = 0;
 544     self->group = NULL;
 545     self->nicons = 0;
 546
 547     client_get_area(self);
 548     client_update_transient_for(self);
 549     client_update_wmhints(self);
 550     client_get_desktop(self);
 551     client_get_state(self);
 552     client_get_shaped(self);
 553
 554     client_get_mwm_hints(self);
 555     client_get_type(self);/* this can change the mwmhints for special cases */
 556
 557     client_update_protocols(self);
 558
 559     client_get_gravity(self); /* get the attribute gravity */
 560     client_update_normal_hints(self); /* this may override the attribute
 561                                          gravity */
 562
 563     /* got the type, the mwmhints, the protocols, and the normal hints
 564        (min/max sizes), so we're ready to set up the decorations/functions */
 565     client_setup_decor_and_functions(self);
 566
 567     client_update_title(self);
 568     client_update_class(self);
 569     client_update_strut(self);
 570     client_update_icons(self);
 571
 572     client_change_state(self);
 573 }
 574
 575 static void client_get_area(Client *self)
 576 {
 577     XWindowAttributes wattrib;
 578     Status ret;
 579
 580     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 581     g_assert(ret != BadWindow);
 582
 583     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
 584     self->border_width = wattrib.border_width;
 585 }
 586
 587 static void client_get_desktop(Client *self)
 588 {
 589     guint32 d;
 590
 591     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
 592         if (d >= screen_num_desktops && d != DESKTOP_ALL)
 593             d = screen_num_desktops - 1;
 594         self->desktop = d;
 595     } else {
 596         gboolean trdesk = FALSE;
 597
 598        if (self->transient_for) {
 599            if (self->transient_for != TRAN_GROUP) {
 600                 self->desktop = self->transient_for->desktop;
 601                 trdesk = TRUE;
 602             } else {
 603                 GSList *it;
 604
 605                 for (it = self->group->members; it; it = it->next)
 606                     if (it->data != self &&
 607                         !((Client*)it->data)->transient_for) {
 608                         self->desktop = ((Client*)it->data)->desktop;
 609                         trdesk = TRUE;
 610                         break;
 611                     }
 612             }
 613        }
 614        if (!trdesk)
 615            /* defaults to the current desktop */
 616            self->desktop = screen_desktop;
 617
 618         /* set the desktop hint, to make sure that it always exists */
 619         PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 620     }
 621 }
 622
 623 static void client_get_state(Client *self)
 624 {
 625     guint32 *state;
 626     guint num;
 627
 628     self->modal = self->shaded = self->max_horz = self->max_vert =
 629         self->fullscreen = self->above = self->below = self->iconic =
 630         self->skip_taskbar = self->skip_pager = FALSE;
 631
 632     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
 633         gulong i;
 634         for (i = 0; i < num; ++i) {
 635             if (state[i] == prop_atoms.net_wm_state_modal)
 636                 self->modal = TRUE;
 637             else if (state[i] == prop_atoms.net_wm_state_shaded)
 638                 self->shaded = TRUE;
 639             else if (state[i] == prop_atoms.net_wm_state_hidden)
 640                 self->iconic = TRUE;
 641             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
 642                 self->skip_taskbar = TRUE;
 643             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
 644                 self->skip_pager = TRUE;
 645             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
 646                 self->fullscreen = TRUE;
 647             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
 648                 self->max_vert = TRUE;
 649             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
 650                 self->max_horz = TRUE;
 651             else if (state[i] == prop_atoms.net_wm_state_above)
 652                 self->above = TRUE;
 653             else if (state[i] == prop_atoms.net_wm_state_below)
 654                 self->below = TRUE;
 655         }
 656
 657         g_free(state);
 658     }
 659 }
 660
 661 static void client_get_shaped(Client *self)
 662 {
 663     self->shaped = FALSE;
 664 #ifdef   SHAPE
 665     if (extensions_shape) {
 666         int foo;
 667         guint ufoo;
 668         int s;
 669
 670         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
 671
 672         XShapeQueryExtents(ob_display, self->window, &s, &foo,
 673                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
 674                            &ufoo);
 675         self->shaped = (s != 0);
 676     }
 677 #endif
 678 }
 679
 680 void client_update_transient_for(Client *self)
 681 {
 682     Window t = None;
 683     Client *c = NULL;
 684
 685     if (XGetTransientForHint(ob_display, self->window, &t)) {
 686         self->transient = TRUE;
 687         if (t != self->window) { /* cant be transient to itself! */
 688             c = g_hash_table_lookup(window_map, &t);
 689             /* if this happens then we need to check for it*/
 690             g_assert(c != self);
 691             g_assert(!c || WINDOW_IS_CLIENT(c));
 692
 693             if (!c && self->group) {
 694                 /* not transient to a client, see if it is transient for a
 695                    group */
 696                 if (t == self->group->leader ||
 697                     t == None ||
 698                     t == ob_root) {
 699                     /* window is a transient for its group! */
 700                     c = TRAN_GROUP;
 701                 }
 702             }
 703         }
 704     } else
 705         self->transient = FALSE;
 706
 707     /* if anything has changed... */
 708     if (c != self->transient_for) {
 709         if (self->transient_for == TRAN_GROUP) { /* transient of group */
 710             GSList *it;
 711
 712             /* remove from old parents */
 713             for (it = self->group->members; it; it = it->next)
 714                 if (it->data != self &&
 715                     !((Client*)it->data)->transient_for)
 716                     ((Client*)it->data)->transients =
 717                         g_slist_remove(((Client*)it->data)->transients, self);
 718         } else if (self->transient_for != NULL) { /* transient of window */
 719             /* remove from old parent */
 720             self->transient_for->transients =
 721                 g_slist_remove(self->transient_for->transients, self);
 722         }
 723         self->transient_for = c;
 724         if (self->transient_for == TRAN_GROUP) { /* transient of group */
 725             GSList *it;
 726
 727             /* add to new parents */
 728             for (it = self->group->members; it; it = it->next)
 729                 if (it->data != self &&
 730                     !((Client*)it->data)->transient_for)
 731                     ((Client*)it->data)->transients =
 732                         g_slist_append(((Client*)it->data)->transients, self);
 733
 734             /* remove all transients which are in the group, that causes
 735                circlular pointer hell of doom */
 736             for (it = self->group->members; it; it = it->next) {
 737                 GSList *sit, *next;
 738                 for (sit = self->transients; sit; sit = next) {
 739                     next = sit->next;
 740                     if (sit->data == it->data)
 741                         self->transients = g_slist_remove(self->transients,
 742                                                           sit->data);
 743                 }
 744             }
 745         } else if (self->transient_for != NULL) { /* transient of window */
 746             /* add to new parent */
 747             self->transient_for->transients =
 748                 g_slist_append(self->transient_for->transients, self);
 749         }
 750     }
 751 }
 752
 753 static void client_get_mwm_hints(Client *self)
 754 {
 755     guint num;
 756     guint32 *hints;
 757
 758     self->mwmhints.flags = 0; /* default to none */
 759
 760     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
 761                     &hints, &num)) {
 762         if (num >= MWM_ELEMENTS) {
 763             self->mwmhints.flags = hints[0];
 764             self->mwmhints.functions = hints[1];
 765             self->mwmhints.decorations = hints[2];
 766         }
 767         g_free(hints);
 768     }
 769 }
 770
 771 void client_get_type(Client *self)
 772 {
 773     guint num, i;
 774     guint32 *val;
 775
 776     self->type = -1;
 777
 778     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
 779         /* use the first value that we know about in the array */
 780         for (i = 0; i < num; ++i) {
 781             if (val[i] == prop_atoms.net_wm_window_type_desktop)
 782                 self->type = Type_Desktop;
 783             else if (val[i] == prop_atoms.net_wm_window_type_dock)
 784                 self->type = Type_Dock;
 785             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
 786                 self->type = Type_Toolbar;
 787             else if (val[i] == prop_atoms.net_wm_window_type_menu)
 788                 self->type = Type_Menu;
 789             else if (val[i] == prop_atoms.net_wm_window_type_utility)
 790                 self->type = Type_Utility;
 791             else if (val[i] == prop_atoms.net_wm_window_type_splash)
 792                 self->type = Type_Splash;
 793             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
 794                 self->type = Type_Dialog;
 795             else if (val[i] == prop_atoms.net_wm_window_type_normal)
 796                 self->type = Type_Normal;
 797             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
 798                 /* prevent this window from getting any decor or
 799                    functionality */
 800                 self->mwmhints.flags &= (MwmFlag_Functions |
 801                                          MwmFlag_Decorations);
 802                 self->mwmhints.decorations = 0;
 803                 self->mwmhints.functions = 0;
 804             }
 805             if (self->type != (WindowType) -1)
 806                 break; /* grab the first legit type */
 807         }
 808         g_free(val);
 809     }
 810
 811     if (self->type == (WindowType) -1) {
 812         /*the window type hint was not set, which means we either classify
 813           ourself as a normal window or a dialog, depending on if we are a
 814           transient. */
 815         if (self->transient)
 816             self->type = Type_Dialog;
 817         else
 818             self->type = Type_Normal;
 819     }
 820 }
 821
 822 void client_update_protocols(Client *self)
 823 {
 824     guint32 *proto;
 825     guint num_return, i;
 826
 827     self->focus_notify = FALSE;
 828     self->delete_window = FALSE;
 829
 830     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
 831         for (i = 0; i < num_return; ++i) {
 832             if (proto[i] == prop_atoms.wm_delete_window) {
 833                 /* this means we can request the window to close */
 834                 self->delete_window = TRUE;
 835             } else if (proto[i] == prop_atoms.wm_take_focus)
 836                 /* if this protocol is requested, then the window will be
 837                    notified whenever we want it to receive focus */
 838                 self->focus_notify = TRUE;
 839         }
 840         g_free(proto);
 841     }
 842 }
 843
 844 static void client_get_gravity(Client *self)
 845 {
 846     XWindowAttributes wattrib;
 847     Status ret;
 848
 849     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 850     g_assert(ret != BadWindow);
 851     self->gravity = wattrib.win_gravity;
 852 }
 853
 854 void client_update_normal_hints(Client *self)
 855 {
 856     XSizeHints size;
 857     long ret;
 858     int oldgravity = self->gravity;
 859
 860     /* defaults */
 861     self->min_ratio = 0.0f;
 862     self->max_ratio = 0.0f;
 863     SIZE_SET(self->size_inc, 1, 1);
 864     SIZE_SET(self->base_size, 0, 0);
 865     SIZE_SET(self->min_size, 0, 0);
 866     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
 867
 868     /* get the hints from the window */
 869     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
 870         self->positioned = !!(size.flags & (PPosition|USPosition));
 871
 872         if (size.flags & PWinGravity) {
 873             self->gravity = size.win_gravity;
 874
 875             /* if the client has a frame, i.e. has already been mapped and
 876                is changing its gravity */
 877             if (self->frame && self->gravity != oldgravity) {
 878                 /* move our idea of the client's position based on its new
 879                    gravity */
 880                 self->area.x = self->frame->area.x;
 881                 self->area.y = self->frame->area.y;
 882                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
 883             }
 884         }
 885
 886         if (size.flags & PAspect) {
 887             if (size.min_aspect.y)
 888                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
 889             if (size.max_aspect.y)
 890                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
 891         }
 892
 893         if (size.flags & PMinSize)
 894             SIZE_SET(self->min_size, size.min_width, size.min_height);
 895
 896         if (size.flags & PMaxSize)
 897             SIZE_SET(self->max_size, size.max_width, size.max_height);
 898
 899         if (size.flags & PBaseSize)
 900             SIZE_SET(self->base_size, size.base_width, size.base_height);
 901
 902         if (size.flags & PResizeInc)
 903             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
 904     }
 905 }
 906
 907 void client_setup_decor_and_functions(Client *self)
 908 {
 909     /* start with everything (cept fullscreen) */
 910     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
 911         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize |
 912         Decor_Shade;
 913     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
 914         Func_Shade;
 915     if (self->delete_window) {
 916         self->decorations |= Decor_Close;
 917         self->functions |= Func_Close;
 918     }
 919
 920     if (!(self->min_size.width < self->max_size.width ||
 921           self->min_size.height < self->max_size.height)) {
 922         self->decorations &= ~(Decor_Maximize | Decor_Handle);
 923         self->functions &= ~(Func_Resize | Func_Maximize);
 924     }
 925
 926     switch (self->type) {
 927     case Type_Normal:
 928         /* normal windows retain all of the possible decorations and
 929            functionality, and are the only windows that you can fullscreen */
 930         self->functions |= Func_Fullscreen;
 931         break;
 932
 933     case Type_Dialog:
 934     case Type_Utility:
 935         /* these windows cannot be maximized */
 936         self->decorations &= ~Decor_Maximize;
 937         self->functions &= ~Func_Maximize;
 938         break;
 939
 940     case Type_Menu:
 941     case Type_Toolbar:
 942         /* these windows get less functionality */
 943         self->decorations &= ~(Decor_Iconify | Decor_Handle);
 944         self->functions &= ~(Func_Iconify | Func_Resize);
 945         break;
 946
 947     case Type_Desktop:
 948     case Type_Dock:
 949     case Type_Splash:
 950         /* none of these windows are manipulated by the window manager */
 951         self->decorations = 0;
 952         self->functions = 0;
 953         break;
 954     }
 955
 956     /* Mwm Hints are applied subtractively to what has already been chosen for
 957        decor and functionality */
 958     if (self->mwmhints.flags & MwmFlag_Decorations) {
 959         if (! (self->mwmhints.decorations & MwmDecor_All)) {
 960             if (! (self->mwmhints.decorations & MwmDecor_Border))
 961                 self->decorations &= ~Decor_Border;
 962             if (! (self->mwmhints.decorations & MwmDecor_Handle))
 963                 self->decorations &= ~Decor_Handle;
 964             if (! (self->mwmhints.decorations & MwmDecor_Title))
 965                 self->decorations &= ~Decor_Titlebar;
 966             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
 967                 self->decorations &= ~Decor_Iconify;
 968             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
 969                 self->decorations &= ~Decor_Maximize;
 970         }
 971     }
 972
 973     if (self->mwmhints.flags & MwmFlag_Functions) {
 974         if (! (self->mwmhints.functions & MwmFunc_All)) {
 975             if (! (self->mwmhints.functions & MwmFunc_Resize))
 976                 self->functions &= ~Func_Resize;
 977             if (! (self->mwmhints.functions & MwmFunc_Move))
 978                 self->functions &= ~Func_Move;
 979             if (! (self->mwmhints.functions & MwmFunc_Iconify))
 980                 self->functions &= ~Func_Iconify;
 981             if (! (self->mwmhints.functions & MwmFunc_Maximize))
 982                 self->functions &= ~Func_Maximize;
 983             /* dont let mwm hints kill the close button
 984                if (! (self->mwmhints.functions & MwmFunc_Close))
 985                self->functions &= ~Func_Close; */
 986         }
 987     }
 988
 989     /* can't maximize without moving/resizing */
 990     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
 991         self->functions &= ~(Func_Maximize | Func_Fullscreen);
 992
 993     /* finally, user specified disabled decorations are applied to subtract
 994        decorations */
 995     if (self->disabled_decorations & Decor_Titlebar)
 996         self->decorations &= ~Decor_Titlebar;
 997     if (self->disabled_decorations & Decor_Handle)
 998         self->decorations &= ~Decor_Handle;
 999     if (self->disabled_decorations & Decor_Border)
1000         self->decorations &= ~Decor_Border;
1001     if (self->disabled_decorations & Decor_Iconify)
1002         self->decorations &= ~Decor_Iconify;
1003     if (self->disabled_decorations & Decor_Maximize)
1004         self->decorations &= ~Decor_Maximize;
1005     if (self->disabled_decorations & Decor_AllDesktops)
1006         self->decorations &= ~Decor_AllDesktops;
1007     if (self->disabled_decorations & Decor_Shade)
1008         self->decorations &= ~Decor_Shade;
1009     if (self->disabled_decorations & Decor_Close)
1010         self->decorations &= ~Decor_Close;
1011
1012     /* if we don't have a titlebar, then we cannot shade! */
1013     if (!(self->decorations & Decor_Titlebar))
1014         self->functions &= ~Func_Shade;
1015
1016     /* now we need to check against rules for the client's current state */
1017     if (self->fullscreen) {
1018         self->functions &= (Func_Close | Func_Fullscreen | Func_Iconify);
1019         self->decorations = 0;
1020     }
1021
1022     client_change_allowed_actions(self);
1023
1024     if (self->frame) {
1025         /* this makes sure that these windows appear on all desktops */
1026         if (self->type == Type_Desktop && self->desktop != DESKTOP_ALL)
1027             client_set_desktop(self, DESKTOP_ALL, FALSE);
1028
1029         /* change the decors on the frame, and with more/less decorations,
1030            we may also need to be repositioned */
1031         frame_adjust_area(self->frame, TRUE, TRUE);
1032         /* with new decor, the window's maximized size may change */
1033         client_remaximize(self);
1034     } else {
1035         /* this makes sure that these windows appear on all desktops */
1036         if (self->type == Type_Desktop && self->desktop != DESKTOP_ALL)
1037             self->desktop = DESKTOP_ALL;
1038     }
1039 }
1040
1041 static void client_change_allowed_actions(Client *self)
1042 {
1043     guint32 actions[9];
1044     int num = 0;
1045
1046     /* desktop windows are kept on all desktops */
1047     if (self->type != Type_Desktop)
1048         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1049
1050     if (self->functions & Func_Shade)
1051         actions[num++] = prop_atoms.net_wm_action_shade;
1052     if (self->functions & Func_Close)
1053         actions[num++] = prop_atoms.net_wm_action_close;
1054     if (self->functions & Func_Move)
1055         actions[num++] = prop_atoms.net_wm_action_move;
1056     if (self->functions & Func_Iconify)
1057         actions[num++] = prop_atoms.net_wm_action_minimize;
1058     if (self->functions & Func_Resize)
1059         actions[num++] = prop_atoms.net_wm_action_resize;
1060     if (self->functions & Func_Fullscreen)
1061         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1062     if (self->functions & Func_Maximize) {
1063         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1064         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1065     }
1066
1067     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1068
1069     /* make sure the window isn't breaking any rules now */
1070
1071     if (!(self->functions & Func_Shade) && self->shaded) {
1072         if (self->frame) client_shade(self, FALSE);
1073         else self->shaded = FALSE;
1074     }
1075     if (!(self->functions & Func_Iconify) && self->iconic) {
1076         g_message("UNSETTING ICONIC");
1077         if (self->frame) client_iconify(self, FALSE, TRUE);
1078         else self->iconic = FALSE;
1079     }
1080     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
1081         if (self->frame) client_fullscreen(self, FALSE, TRUE);
1082         else self->fullscreen = FALSE;
1083     }
1084     if (!(self->functions & Func_Maximize) && (self->max_horz ||
1085                                                self->max_vert)) {
1086         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
1087         else self->max_vert = self->max_horz = FALSE;
1088     }
1089 }
1090
1091 void client_remaximize(Client *self)
1092 {
1093     int dir;
1094     if (self->max_horz && self->max_vert)
1095         dir = 0;
1096     else if (self->max_horz)
1097         dir = 1;
1098     else if (self->max_vert)
1099         dir = 2;
1100     else
1101         return; /* not maximized */
1102     self->max_horz = self->max_vert = FALSE;
1103     client_maximize(self, TRUE, dir, FALSE);
1104 }
1105
1106 void client_update_wmhints(Client *self)
1107 {
1108     XWMHints *hints;
1109     gboolean ur = FALSE;
1110     GSList *it;
1111
1112     /* assume a window takes input if it doesnt specify */
1113     self->can_focus = TRUE;
1114
1115     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1116         if (hints->flags & InputHint)
1117             self->can_focus = hints->input;
1118
1119         /* only do this when first managing the window *AND* when we aren't
1120            starting up! */
1121         if (ob_state != State_Starting && self->frame == NULL)
1122             if (hints->flags & StateHint)
1123                 self->iconic = hints->initial_state == IconicState;
1124
1125         if (hints->flags & XUrgencyHint)
1126             ur = TRUE;
1127
1128         if (!(hints->flags & WindowGroupHint))
1129             hints->window_group = None;
1130
1131         /* did the group state change? */
1132         if (hints->window_group !=
1133             (self->group ? self->group->leader : None)) {
1134             /* remove from the old group if there was one */
1135             if (self->group != NULL) {
1136                 /* remove transients of the group */
1137                 for (it = self->group->members; it; it = it->next)
1138                     self->transients = g_slist_remove(self->transients,
1139                                                       it->data);
1140                 group_remove(self->group, self);
1141                 self->group = NULL;
1142             }
1143             if (hints->window_group != None) {
1144                 self->group = group_add(hints->window_group, self);
1145
1146                 /* i can only have transients from the group if i am not
1147                    transient myself */
1148                 if (!self->transient_for) {
1149                     /* add other transients of the group that are already
1150                        set up */
1151                     for (it = self->group->members; it; it = it->next)
1152                         if (it->data != self &&
1153                             ((Client*)it->data)->transient_for == TRAN_GROUP)
1154                             self->transients = g_slist_append(self->transients,
1155                                                               it->data);
1156                 }
1157             }
1158
1159             /* the WM_HINTS can contain an icon */
1160             client_update_icons(self);
1161
1162             /* because the self->transient flag wont change from this call,
1163                we don't need to update the window's type and such, only its
1164                transient_for, and the transients lists of other windows in
1165                the group may be affected */
1166             client_update_transient_for(self);
1167         }
1168
1169         XFree(hints);
1170     }
1171
1172     if (ur != self->urgent) {
1173         self->urgent = ur;
1174         g_message("Urgent Hint for 0x%lx: %s", self->window,
1175                   ur ? "ON" : "OFF");
1176         /* fire the urgent callback if we're mapped, otherwise, wait until
1177            after we're mapped */
1178         if (self->frame)
1179             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1180     }
1181 }
1182
1183 void client_update_title(Client *self)
1184 {
1185     GList *it;
1186     guint32 nums;
1187     guint i;
1188     char *data = NULL;
1189     gboolean read_title;
1190
1191     g_free(self->title);
1192
1193     /* try netwm */
1194     if (!PROP_GETS(self->window, net_wm_name, utf8, &data))
1195         /* try old x stuff */
1196         if (!PROP_GETS(self->window, wm_name, locale, &data))
1197             data = g_strdup("Unnamed Window");
1198
1199     /* look for duplicates and append a number */
1200     nums = 0;
1201     for (it = client_list; it; it = it->next)
1202         if (it->data != self) {
1203             Client *c = it->data;
1204             if (0 == strncmp(c->title, data, strlen(data)))
1205                 nums |= 1 << c->title_count;
1206         }
1207     /* find first free number */
1208     for (i = 1; i <= 32; ++i)
1209         if (!(nums & (1 << i))) {
1210             if (self->title_count == 1 || i == 1)
1211                 self->title_count = i;
1212             break;
1213         }
1214     /* dont display the number for the first window */
1215     if (self->title_count > 1) {
1216         char *vdata, *ndata;
1217         ndata = g_strdup_printf(" - [%u]", self->title_count);
1218         vdata = g_strconcat(data, ndata, NULL);
1219         g_free(ndata);
1220         g_free(data);
1221         data = vdata;
1222     }
1223
1224     PROP_SETS(self->window, net_wm_visible_name, data);
1225
1226     self->title = data;
1227
1228     if (self->frame)
1229         frame_adjust_title(self->frame);
1230
1231     /* update the icon title */
1232     data = NULL;
1233     g_free(self->icon_title);
1234
1235     read_title = TRUE;
1236     /* try netwm */
1237     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1238         /* try old x stuff */
1239         if (!PROP_GETS(self->window, wm_icon_name, locale, &data)) {
1240             data = g_strdup(self->title);
1241             read_title = FALSE;
1242         }
1243
1244     /* append the title count, dont display the number for the first window */
1245     if (read_title && self->title_count > 1) {
1246         char *vdata, *ndata;
1247         ndata = g_strdup_printf(" - [%u]", self->title_count);
1248         vdata = g_strconcat(data, ndata, NULL);
1249         g_free(ndata);
1250         g_free(data);
1251         data = vdata;
1252     }
1253
1254     PROP_SETS(self->window, net_wm_visible_icon_name, data);
1255
1256     self->icon_title = data;
1257 }
1258
1259 void client_update_class(Client *self)
1260 {
1261     char **data;
1262     char *s;
1263
1264     if (self->name) g_free(self->name);
1265     if (self->class) g_free(self->class);
1266     if (self->role) g_free(self->role);
1267
1268     self->name = self->class = self->role = NULL;
1269
1270     if (PROP_GETSS(self->window, wm_class, locale, &data)) {
1271         if (data[0]) {
1272             self->name = g_strdup(data[0]);
1273             if (data[1])
1274                 self->class = g_strdup(data[1]);
1275         }
1276         g_strfreev(data);
1277     }
1278
1279     if (PROP_GETS(self->window, wm_window_role, locale, &s))
1280         self->role = g_strdup(s);
1281
1282     if (self->name == NULL) self->name = g_strdup("");
1283     if (self->class == NULL) self->class = g_strdup("");
1284     if (self->role == NULL) self->role = g_strdup("");
1285 }
1286
1287 void client_update_strut(Client *self)
1288 {
1289     guint num;
1290     guint32 *data;
1291
1292     if (!PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1293         STRUT_SET(self->strut, 0, 0, 0, 0);
1294     } else {
1295         if (num == 4)
1296             STRUT_SET(self->strut, data[0], data[2], data[1], data[3]);
1297         else
1298             STRUT_SET(self->strut, 0, 0, 0, 0);
1299         g_free(data);
1300     }
1301
1302     /* updating here is pointless while we're being mapped cuz we're not in
1303        the client list yet */
1304     if (self->frame)
1305         screen_update_struts();
1306 }
1307
1308 void client_update_icons(Client *self)
1309 {
1310     guint num;
1311     guint32 *data;
1312     guint w, h, i;
1313     int j;
1314
1315     for (j = 0; j < self->nicons; ++j)
1316         g_free(self->icons[j].data);
1317     if (self->nicons > 0)
1318         g_free(self->icons);
1319     self->nicons = 0;
1320
1321     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
1322         /* figure out how many valid icons are in here */
1323         i = 0;
1324         while (num - i > 2) {
1325             w = data[i++];
1326             h = data[i++];
1327             i += w * h;
1328             if (i > num || w*h == 0) break;
1329             ++self->nicons;
1330         }
1331
1332         self->icons = g_new(Icon, self->nicons);
1333
1334         /* store the icons */
1335         i = 0;
1336         for (j = 0; j < self->nicons; ++j) {
1337             guint x, y, t;
1338
1339             w = self->icons[j].width = data[i++];
1340             h = self->icons[j].height = data[i++];
1341
1342             if (w*h == 0) continue;
1343
1344             self->icons[j].data = g_new(pixel32, w * h);
1345             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
1346                 if (x >= w) {
1347                     x = 0;
1348                     ++y;
1349                 }
1350                 self->icons[j].data[t] =
1351                     (((data[i] >> 24) & 0xff) << default_alpha_offset) +
1352                     (((data[i] >> 16) & 0xff) << default_red_offset) +
1353                     (((data[i] >> 8) & 0xff) << default_green_offset) +
1354                     (((data[i] >> 0) & 0xff) << default_blue_offset);
1355             }
1356             g_assert(i <= num);
1357         }
1358
1359         g_free(data);
1360     } else if (PROP_GETA32(self->window, kwm_win_icon,
1361                            kwm_win_icon, &data, &num)) {
1362         if (num == 2) {
1363             self->nicons++;
1364             self->icons = g_new(Icon, self->nicons);
1365             if (!render_pixmap_to_rgba(data[0], data[1],
1366                                        &self->icons[self->nicons-1].width,
1367                                        &self->icons[self->nicons-1].height,
1368                                        &self->icons[self->nicons-1].data)) {
1369                 g_free(&self->icons[self->nicons-1]);
1370                 self->nicons--;
1371             }
1372         }
1373         g_free(data);
1374     } else {
1375         XWMHints *hints;
1376
1377         if ((hints = XGetWMHints(ob_display, self->window))) {
1378             if (hints->flags & IconPixmapHint) {
1379                 self->nicons++;
1380                 self->icons = g_new(Icon, self->nicons);
1381                 if (!render_pixmap_to_rgba(hints->icon_pixmap,
1382                                            (hints->flags & IconMaskHint ?
1383                                             hints->icon_mask : None),
1384                                            &self->icons[self->nicons-1].width,
1385                                            &self->icons[self->nicons-1].height,
1386                                            &self->icons[self->nicons-1].data)){
1387                     g_free(&self->icons[self->nicons-1]);
1388                     self->nicons--;
1389                 }
1390             }
1391             XFree(hints);
1392         }
1393     }
1394
1395     if (self->frame)
1396         frame_adjust_icon(self->frame);
1397 }
1398
1399 static void client_change_state(Client *self)
1400 {
1401     guint32 state[2];
1402     guint32 netstate[10];
1403     guint num;
1404
1405     state[0] = self->wmstate;
1406     state[1] = None;
1407     PROP_SETA32(self->window, wm_state, wm_state, state, 2);
1408
1409     num = 0;
1410     if (self->modal)
1411         netstate[num++] = prop_atoms.net_wm_state_modal;
1412     if (self->shaded)
1413         netstate[num++] = prop_atoms.net_wm_state_shaded;
1414     if (self->iconic)
1415         netstate[num++] = prop_atoms.net_wm_state_hidden;
1416     if (self->skip_taskbar)
1417         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1418     if (self->skip_pager)
1419         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1420     if (self->fullscreen)
1421         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1422     if (self->max_vert)
1423         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1424     if (self->max_horz)
1425         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1426     if (self->above)
1427         netstate[num++] = prop_atoms.net_wm_state_above;
1428     if (self->below)
1429         netstate[num++] = prop_atoms.net_wm_state_below;
1430     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
1431
1432     client_calc_layer(self);
1433
1434     if (self->frame)
1435         frame_adjust_state(self->frame);
1436 }
1437
1438 Client *client_search_focus_tree(Client *self)
1439 {
1440     GSList *it;
1441     Client *ret;
1442
1443     for (it = self->transients; it != NULL; it = it->next) {
1444         if (client_focused(it->data)) return it->data;
1445         if ((ret = client_search_focus_tree(it->data))) return ret;
1446     }
1447     return NULL;
1448 }
1449
1450 Client *client_search_focus_tree_full(Client *self)
1451 {
1452     if (self->transient_for) {
1453         if (self->transient_for != TRAN_GROUP) {
1454             return client_search_focus_tree_full(self->transient_for);
1455         } else {
1456             GSList *it;
1457             gboolean recursed = FALSE;
1458
1459             for (it = self->group->members; it; it = it->next)
1460                 if (!((Client*)it->data)->transient_for) {
1461                     Client *c;
1462                     if ((c = client_search_focus_tree_full(it->data)))
1463                         return c;
1464                     recursed = TRUE;
1465                 }
1466             if (recursed)
1467               return NULL;
1468         }
1469     }
1470
1471     /* this function checks the whole tree, the client_search_focus_tree~
1472        does not, so we need to check this window */
1473     if (client_focused(self))
1474       return self;
1475     return client_search_focus_tree(self);
1476 }
1477
1478 static StackLayer calc_layer(Client *self)
1479 {
1480     StackLayer l;
1481
1482     if (self->fullscreen) l = Layer_Fullscreen;
1483     else if (self->type == Type_Desktop) l = Layer_Desktop;
1484     else if (self->type == Type_Dock) {
1485         if (!self->below) l = Layer_Top;
1486         else l = Layer_Normal;
1487     }
1488     else if (self->above) l = Layer_Above;
1489     else if (self->below) l = Layer_Below;
1490     else l = Layer_Normal;
1491
1492     return l;
1493 }
1494
1495 static void calc_recursive(Client *self, Client *orig, StackLayer l,
1496                            gboolean raised)
1497 {
1498     StackLayer old, own;
1499     GSList *it;
1500
1501     old = self->layer;
1502     own = calc_layer(self);
1503     self->layer = l > own ? l : own;
1504
1505     for (it = self->transients; it; it = it->next)
1506         calc_recursive(it->data, orig, l, raised ? raised : l != old);
1507
1508     if (!raised && l != old)
1509         if (orig->frame) /* only restack if the original window is managed */
1510             stacking_raise(CLIENT_AS_WINDOW(self));
1511 }
1512
1513 void client_calc_layer(Client *self)
1514 {
1515     StackLayer l;
1516     Client *orig;
1517
1518     orig = self;
1519
1520     /* transients take on the layer of their parents */
1521     if (self->transient_for) {
1522         if (self->transient_for != TRAN_GROUP) {
1523             self = self->transient_for;
1524         } else {
1525             GSList *it;
1526
1527             for (it = self->group->members; it; it = it->next)
1528                 if (it->data != self &&
1529                     !((Client*)it->data)->transient_for) {
1530                     self = it->data;
1531                     break;
1532                 }
1533         }
1534     }
1535
1536     l = calc_layer(self);
1537
1538     calc_recursive(self, orig, l, FALSE);
1539 }
1540
1541 gboolean client_should_show(Client *self)
1542 {
1543     if (self->iconic) return FALSE;
1544     else if (!(self->desktop == screen_desktop ||
1545                self->desktop == DESKTOP_ALL)) return FALSE;
1546     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1547
1548     return TRUE;
1549 }
1550
1551 static void client_showhide(Client *self)
1552 {
1553
1554     if (client_should_show(self))
1555         frame_show(self->frame);
1556     else
1557         frame_hide(self->frame);
1558 }
1559
1560 gboolean client_normal(Client *self) {
1561     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1562               self->type == Type_Splash);
1563 }
1564
1565 static void client_apply_startup_state(Client *self)
1566 {
1567     /* these are in a carefully crafted order.. */
1568
1569     if (self->iconic) {
1570         self->iconic = FALSE;
1571         client_iconify(self, TRUE, FALSE);
1572     }
1573     if (self->fullscreen) {
1574         self->fullscreen = FALSE;
1575         client_fullscreen(self, TRUE, FALSE);
1576     }
1577     if (self->shaded) {
1578         self->shaded = FALSE;
1579         client_shade(self, TRUE);
1580     }
1581     if (self->urgent)
1582         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1583
1584     if (self->max_vert && self->max_horz) {
1585         self->max_vert = self->max_horz = FALSE;
1586         client_maximize(self, TRUE, 0, FALSE);
1587     } else if (self->max_vert) {
1588         self->max_vert = FALSE;
1589         client_maximize(self, TRUE, 2, FALSE);
1590     } else if (self->max_horz) {
1591         self->max_horz = FALSE;
1592         client_maximize(self, TRUE, 1, FALSE);
1593     }
1594
1595     /* nothing to do for the other states:
1596        skip_taskbar
1597        skip_pager
1598        modal
1599        above
1600        below
1601     */
1602 }
1603
1604 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1605                       gboolean user, gboolean final)
1606 {
1607     gboolean moved = FALSE, resized = FALSE;
1608
1609     /* gets the frame's position */
1610     frame_client_gravity(self->frame, &x, &y);
1611
1612     /* these positions are frame positions, not client positions */
1613
1614     /* set the size and position if fullscreen */
1615     if (self->fullscreen) {
1616         x = 0;
1617         y = 0;
1618         w = screen_physical_size.width;
1619         h = screen_physical_size.height;
1620         user = FALSE; /* ignore that increment etc shit when in fullscreen */
1621     } else {
1622         /* set the size and position if maximized */
1623         if (self->max_horz) {
1624             x = screen_area(self->desktop)->x - self->frame->size.left;
1625             w = screen_area(self->desktop)->width;
1626         }
1627         if (self->max_vert) {
1628             y = screen_area(self->desktop)->y;
1629             h = screen_area(self->desktop)->height -
1630                 self->frame->size.top - self->frame->size.bottom;
1631         }
1632     }
1633
1634     /* gets the client's position */
1635     frame_frame_gravity(self->frame, &x, &y);
1636
1637     /* these override the above states! if you cant move you can't move! */
1638     if (user) {
1639         if (!(self->functions & Func_Move)) {
1640             x = self->area.x;
1641             y = self->area.y;
1642         }
1643         if (!(self->functions & Func_Resize)) {
1644             w = self->area.width;
1645             h = self->area.height;
1646         }
1647     }
1648
1649     if (!(w == self->area.width && h == self->area.height)) {
1650         w -= self->base_size.width;
1651         h -= self->base_size.height;
1652
1653         if (user) {
1654             /* for interactive resizing. have to move half an increment in each
1655                direction. */
1656
1657             /* how far we are towards the next size inc */
1658             int mw = w % self->size_inc.width;
1659             int mh = h % self->size_inc.height;
1660             /* amount to add */
1661             int aw = self->size_inc.width / 2;
1662             int ah = self->size_inc.height / 2;
1663             /* don't let us move into a new size increment */
1664             if (mw + aw >= self->size_inc.width)
1665                 aw = self->size_inc.width - mw - 1;
1666             if (mh + ah >= self->size_inc.height)
1667                 ah = self->size_inc.height - mh - 1;
1668             w += aw;
1669             h += ah;
1670
1671             /* if this is a user-requested resize, then check against min/max
1672                sizes and aspect ratios */
1673
1674             /* smaller than min size or bigger than max size? */
1675             if (w > self->max_size.width) w = self->max_size.width;
1676             if (w < self->min_size.width) w = self->min_size.width;
1677             if (h > self->max_size.height) h = self->max_size.height;
1678             if (h < self->min_size.height) h = self->min_size.height;
1679
1680             /* adjust the height ot match the width for the aspect ratios */
1681             if (self->min_ratio)
1682                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1683             if (self->max_ratio)
1684                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1685         }
1686
1687         /* keep to the increments */
1688         w /= self->size_inc.width;
1689         h /= self->size_inc.height;
1690
1691         /* you cannot resize to nothing */
1692         if (w < 1) w = 1;
1693         if (h < 1) h = 1;
1694
1695         /* store the logical size */
1696         SIZE_SET(self->logical_size, w, h);
1697
1698         w *= self->size_inc.width;
1699         h *= self->size_inc.height;
1700
1701         w += self->base_size.width;
1702         h += self->base_size.height;
1703     }
1704
1705     switch (anchor) {
1706     case Corner_TopLeft:
1707         break;
1708     case Corner_TopRight:
1709         x -= w - self->area.width;
1710         break;
1711     case Corner_BottomLeft:
1712         y -= h - self->area.height;
1713         break;
1714     case Corner_BottomRight:
1715         x -= w - self->area.width;
1716         y -= h - self->area.height;
1717         break;
1718     }
1719
1720     moved = x != self->area.x || y != self->area.y;
1721     resized = w != self->area.width || h != self->area.height;
1722
1723     RECT_SET(self->area, x, y, w, h);
1724
1725     if (resized)
1726         XResizeWindow(ob_display, self->window, w, h);
1727
1728     /* move/resize the frame to match the request */
1729     if (self->frame) {
1730         if (moved || resized)
1731             frame_adjust_area(self->frame, moved, resized);
1732
1733         if (!user || final) {
1734             XEvent event;
1735             event.type = ConfigureNotify;
1736             event.xconfigure.display = ob_display;
1737             event.xconfigure.event = self->window;
1738             event.xconfigure.window = self->window;
1739
1740             /* root window real coords */
1741             event.xconfigure.x = self->frame->area.x + self->frame->size.left;
1742             event.xconfigure.y = self->frame->area.y + self->frame->size.top;
1743
1744             event.xconfigure.width = w;
1745             event.xconfigure.height = h;
1746             event.xconfigure.border_width = 0;
1747             event.xconfigure.above = self->frame->plate;
1748             event.xconfigure.override_redirect = FALSE;
1749             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1750                        FALSE, StructureNotifyMask, &event);
1751         }
1752     }
1753 }
1754
1755 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1756 {
1757     int x, y, w, h;
1758
1759     if (!(self->functions & Func_Fullscreen) || /* can't */
1760         self->fullscreen == fs) return;         /* already done */
1761
1762     self->fullscreen = fs;
1763     client_change_state(self); /* change the state hints on the client,
1764                                   and adjust out layer/stacking */
1765
1766     if (fs) {
1767         if (savearea) {
1768             guint32 dimensions[4];
1769             dimensions[0] = self->area.x;
1770             dimensions[1] = self->area.y;
1771             dimensions[2] = self->area.width;
1772             dimensions[3] = self->area.height;
1773
1774             PROP_SETA32(self->window, openbox_premax, cardinal,
1775                         dimensions, 4);
1776         }
1777
1778         /* these are not actually used cuz client_configure will set them
1779            as appropriate when the window is fullscreened */
1780         x = y = w = h = 0;
1781     } else {
1782         guint num;
1783         gint32 *dimensions;
1784
1785         /* pick some fallbacks... */
1786         x = screen_area(self->desktop)->x +
1787             screen_area(self->desktop)->width / 4;
1788         y = screen_area(self->desktop)->y +
1789             screen_area(self->desktop)->height / 4;
1790         w = screen_area(self->desktop)->width / 2;
1791         h = screen_area(self->desktop)->height / 2;
1792
1793         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1794                         (guint32**)&dimensions, &num)) {
1795             if (num == 4) {
1796                 x = dimensions[0];
1797                 y = dimensions[1];
1798                 w = dimensions[2];
1799                 h = dimensions[3];
1800             }
1801             g_free(dimensions);
1802         }
1803     }
1804
1805     client_setup_decor_and_functions(self);
1806
1807     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1808
1809     /* try focus us when we go into fullscreen mode */
1810     client_focus(self);
1811 }
1812
1813 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1814 {
1815     GSList *it;
1816
1817     /* move up the transient chain as far as possible first */
1818     if (self->transient_for) {
1819         if (self->transient_for != TRAN_GROUP) {
1820             if (self->transient_for->iconic != iconic) {
1821                 client_iconify(self->transient_for, iconic, curdesk);
1822                 return;
1823             }
1824         } else {
1825             GSList *it;
1826
1827             for (it = self->group->members; it; it = it->next) {
1828                 Client *c = it->data;
1829                 if (c != self && c->iconic != iconic &&
1830                     !c->transient_for) {
1831                     client_iconify(it->data, iconic, curdesk);
1832                     break;
1833                 }
1834             }
1835             if (it != NULL) return;
1836         }
1837     }
1838
1839     if (self->iconic == iconic) return; /* nothing to do */
1840
1841     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1842               self->window);
1843
1844     self->iconic = iconic;
1845
1846     if (iconic) {
1847         self->wmstate = IconicState;
1848         self->ignore_unmaps++;
1849         /* we unmap the client itself so that we can get MapRequest events,
1850            and because the ICCCM tells us to! */
1851         XUnmapWindow(ob_display, self->window);
1852
1853         /* update the focus lists.. iconic windows go to the bottom of the
1854          list, put the new iconic window at the 'top of the bottom'. */
1855         focus_order_to_top(self);
1856     } else {
1857         if (curdesk)
1858             client_set_desktop(self, screen_desktop, FALSE);
1859         self->wmstate = self->shaded ? IconicState : NormalState;
1860         XMapWindow(ob_display, self->window);
1861
1862         /* this puts it after the current focused window */
1863         focus_order_remove(self);
1864         focus_order_add_new(self);
1865     }
1866     client_change_state(self);
1867     client_showhide(self);
1868     screen_update_struts();
1869
1870     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1871                     self, 0, 0);
1872
1873     /* iconify all transients */
1874     for (it = self->transients; it != NULL; it = it->next)
1875         if (it->data != self) client_iconify(it->data, iconic, curdesk);
1876 }
1877
1878 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1879 {
1880     int x, y, w, h;
1881
1882     g_assert(dir == 0 || dir == 1 || dir == 2);
1883     if (!(self->functions & Func_Maximize)) return; /* can't */
1884
1885     /* check if already done */
1886     if (max) {
1887         if (dir == 0 && self->max_horz && self->max_vert) return;
1888         if (dir == 1 && self->max_horz) return;
1889         if (dir == 2 && self->max_vert) return;
1890     } else {
1891         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1892         if (dir == 1 && !self->max_horz) return;
1893         if (dir == 2 && !self->max_vert) return;
1894     }
1895
1896     /* work with the frame's coords */
1897     x = self->frame->area.x;
1898     y = self->frame->area.y;
1899     w = self->area.width;
1900     h = self->area.height;
1901
1902     if (max) {
1903         if (savearea) {
1904             gint32 dimensions[4];
1905             gint32 *readdim;
1906             guint num;
1907
1908             dimensions[0] = x;
1909             dimensions[1] = y;
1910             dimensions[2] = w;
1911             dimensions[3] = h;
1912
1913             /* get the property off the window and use it for the dimensions
1914                we are already maxed on */
1915             if (PROP_GETA32(self->window, openbox_premax, cardinal,
1916                             (guint32**)&readdim, &num)) {
1917                 if (num == 4) {
1918                     if (self->max_horz) {
1919                         dimensions[0] = readdim[0];
1920                         dimensions[2] = readdim[2];
1921                     }
1922                     if (self->max_vert) {
1923                         dimensions[1] = readdim[1];
1924                         dimensions[3] = readdim[3];
1925                     }
1926                 }
1927                 g_free(readdim);
1928             }
1929
1930             PROP_SETA32(self->window, openbox_premax, cardinal,
1931                         (guint32*)dimensions, 4);
1932         }
1933     } else {
1934         guint num;
1935         gint32 *dimensions;
1936
1937         /* pick some fallbacks... */
1938         if (dir == 0 || dir == 1) { /* horz */
1939             x = screen_area(self->desktop)->x +
1940                 screen_area(self->desktop)->width / 4;
1941             w = screen_area(self->desktop)->width / 2;
1942         }
1943         if (dir == 0 || dir == 2) { /* vert */
1944             y = screen_area(self->desktop)->y +
1945                 screen_area(self->desktop)->height / 4;
1946             h = screen_area(self->desktop)->height / 2;
1947         }
1948
1949         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1950                         (guint32**)&dimensions, &num)) {
1951             if (num == 4) {
1952                 if (dir == 0 || dir == 1) { /* horz */
1953                     x = dimensions[0];
1954                     w = dimensions[2];
1955                 }
1956                 if (dir == 0 || dir == 2) { /* vert */
1957                     y = dimensions[1];
1958                     h = dimensions[3];
1959                 }
1960             }
1961             g_free(dimensions);
1962         }
1963     }
1964
1965     if (dir == 0 || dir == 1) /* horz */
1966         self->max_horz = max;
1967     if (dir == 0 || dir == 2) /* vert */
1968         self->max_vert = max;
1969
1970     if (!self->max_horz && !self->max_vert)
1971         PROP_ERASE(self->window, openbox_premax);
1972
1973     client_change_state(self); /* change the state hints on the client */
1974
1975     /* figure out where the client should be going */
1976     frame_frame_gravity(self->frame, &x, &y);
1977     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1978 }
1979
1980 void client_shade(Client *self, gboolean shade)
1981 {
1982     if ((!(self->functions & Func_Shade) && shade) || /* can't shade */
1983         self->shaded == shade) return;     /* already done */
1984
1985     /* when we're iconic, don't change the wmstate */
1986     if (!self->iconic)
1987         self->wmstate = shade ? IconicState : NormalState;
1988     self->shaded = shade;
1989     client_change_state(self);
1990     /* resize the frame to just the titlebar */
1991     frame_adjust_area(self->frame, FALSE, FALSE);
1992 }
1993
1994 void client_close(Client *self)
1995 {
1996     XEvent ce;
1997
1998     if (!(self->functions & Func_Close)) return;
1999
2000     /*
2001       XXX: itd be cool to do timeouts and shit here for killing the client's
2002       process off
2003       like... if the window is around after 5 seconds, then the close button
2004       turns a nice red, and if this function is called again, the client is
2005       explicitly killed.
2006     */
2007
2008     ce.xclient.type = ClientMessage;
2009     ce.xclient.message_type =  prop_atoms.wm_protocols;
2010     ce.xclient.display = ob_display;
2011     ce.xclient.window = self->window;
2012     ce.xclient.format = 32;
2013     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
2014     ce.xclient.data.l[1] = event_lasttime;
2015     ce.xclient.data.l[2] = 0l;
2016     ce.xclient.data.l[3] = 0l;
2017     ce.xclient.data.l[4] = 0l;
2018     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2019 }
2020
2021 void client_kill(Client *self)
2022 {
2023     XKillClient(ob_display, self->window);
2024 }
2025
2026 void client_set_desktop(Client *self, guint target, gboolean donthide)
2027 {
2028     guint old;
2029
2030     if (target == self->desktop) return;
2031
2032     g_message("Setting desktop %u", target+1);
2033
2034     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
2035
2036     /* remove from the old desktop(s) */
2037     focus_order_remove(self);
2038
2039     old = self->desktop;
2040     self->desktop = target;
2041     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
2042     /* the frame can display the current desktop state */
2043     frame_adjust_state(self->frame);
2044     /* 'move' the window to the new desktop */
2045     if (!donthide)
2046         client_showhide(self);
2047     /* raise if it was not already on the desktop */
2048     if (old != DESKTOP_ALL)
2049         stacking_raise(CLIENT_AS_WINDOW(self));
2050     screen_update_struts();
2051
2052     /* add to the new desktop(s) */
2053     if (config_focus_new)
2054         focus_order_to_top(self);
2055     else
2056         focus_order_to_bottom(self);
2057
2058     dispatch_client(Event_Client_Desktop, self, target, old);
2059 }
2060
2061 Client *client_search_modal_child(Client *self)
2062 {
2063     GSList *it;
2064     Client *ret;
2065
2066     for (it = self->transients; it != NULL; it = it->next) {
2067         Client *c = it->data;
2068         if ((ret = client_search_modal_child(c))) return ret;
2069         if (c->modal) return c;
2070     }
2071     return NULL;
2072 }
2073
2074 gboolean client_validate(Client *self)
2075 {
2076     XEvent e;
2077
2078     XSync(ob_display, FALSE); /* get all events on the server */
2079
2080     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
2081         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
2082         XPutBackEvent(ob_display, &e);
2083         return FALSE;
2084     }
2085
2086     return TRUE;
2087 }
2088
2089 void client_set_wm_state(Client *self, long state)
2090 {
2091     if (state == self->wmstate) return; /* no change */
2092
2093     switch (state) {
2094     case IconicState:
2095         client_iconify(self, TRUE, TRUE);
2096         break;
2097     case NormalState:
2098         client_iconify(self, FALSE, TRUE);
2099         break;
2100     }
2101 }
2102
2103 void client_set_state(Client *self, Atom action, long data1, long data2)
2104 {
2105     gboolean shaded = self->shaded;
2106     gboolean fullscreen = self->fullscreen;
2107     gboolean max_horz = self->max_horz;
2108     gboolean max_vert = self->max_vert;
2109     int i;
2110
2111     if (!(action == prop_atoms.net_wm_state_add ||
2112           action == prop_atoms.net_wm_state_remove ||
2113           action == prop_atoms.net_wm_state_toggle))
2114         /* an invalid action was passed to the client message, ignore it */
2115         return;
2116
2117     for (i = 0; i < 2; ++i) {
2118         Atom state = i == 0 ? data1 : data2;
2119
2120         if (!state) continue;
2121
2122         /* if toggling, then pick whether we're adding or removing */
2123         if (action == prop_atoms.net_wm_state_toggle) {
2124             if (state == prop_atoms.net_wm_state_modal)
2125                 action = self->modal ? prop_atoms.net_wm_state_remove :
2126                     prop_atoms.net_wm_state_add;
2127             else if (state == prop_atoms.net_wm_state_maximized_vert)
2128                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
2129                     prop_atoms.net_wm_state_add;
2130             else if (state == prop_atoms.net_wm_state_maximized_horz)
2131                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
2132                     prop_atoms.net_wm_state_add;
2133             else if (state == prop_atoms.net_wm_state_shaded)
2134                 action = self->shaded ? prop_atoms.net_wm_state_remove :
2135                     prop_atoms.net_wm_state_add;
2136             else if (state == prop_atoms.net_wm_state_skip_taskbar)
2137                 action = self->skip_taskbar ?
2138                     prop_atoms.net_wm_state_remove :
2139                     prop_atoms.net_wm_state_add;
2140             else if (state == prop_atoms.net_wm_state_skip_pager)
2141                 action = self->skip_pager ?
2142                     prop_atoms.net_wm_state_remove :
2143                     prop_atoms.net_wm_state_add;
2144             else if (state == prop_atoms.net_wm_state_fullscreen)
2145                 action = self->fullscreen ?
2146                     prop_atoms.net_wm_state_remove :
2147                     prop_atoms.net_wm_state_add;
2148             else if (state == prop_atoms.net_wm_state_above)
2149                 action = self->above ? prop_atoms.net_wm_state_remove :
2150                     prop_atoms.net_wm_state_add;
2151             else if (state == prop_atoms.net_wm_state_below)
2152                 action = self->below ? prop_atoms.net_wm_state_remove :
2153                     prop_atoms.net_wm_state_add;
2154         }
2155
2156         if (action == prop_atoms.net_wm_state_add) {
2157             if (state == prop_atoms.net_wm_state_modal) {
2158                 /* XXX raise here or something? */
2159                 self->modal = TRUE;
2160             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2161                 max_vert = TRUE;
2162             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2163                 max_horz = TRUE;
2164             } else if (state == prop_atoms.net_wm_state_shaded) {
2165                 shaded = TRUE;
2166             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2167                 self->skip_taskbar = TRUE;
2168             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2169                 self->skip_pager = TRUE;
2170             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2171                 fullscreen = TRUE;
2172             } else if (state == prop_atoms.net_wm_state_above) {
2173                 self->above = TRUE;
2174             } else if (state == prop_atoms.net_wm_state_below) {
2175                 self->below = TRUE;
2176             }
2177
2178         } else { /* action == prop_atoms.net_wm_state_remove */
2179             if (state == prop_atoms.net_wm_state_modal) {
2180                 self->modal = FALSE;
2181             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2182                 max_vert = FALSE;
2183             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2184                 max_horz = FALSE;
2185             } else if (state == prop_atoms.net_wm_state_shaded) {
2186                 shaded = FALSE;
2187             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2188                 self->skip_taskbar = FALSE;
2189             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2190                 self->skip_pager = FALSE;
2191             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2192                 fullscreen = FALSE;
2193             } else if (state == prop_atoms.net_wm_state_above) {
2194                 self->above = FALSE;
2195             } else if (state == prop_atoms.net_wm_state_below) {
2196                 self->below = FALSE;
2197             }
2198         }
2199     }
2200     if (max_horz != self->max_horz || max_vert != self->max_vert) {
2201         if (max_horz != self->max_horz && max_vert != self->max_vert) {
2202             /* toggling both */
2203             if (max_horz == max_vert) { /* both going the same way */
2204                 client_maximize(self, max_horz, 0, TRUE);
2205             } else {
2206                 client_maximize(self, max_horz, 1, TRUE);
2207                 client_maximize(self, max_vert, 2, TRUE);
2208             }
2209         } else {
2210             /* toggling one */
2211             if (max_horz != self->max_horz)
2212                 client_maximize(self, max_horz, 1, TRUE);
2213             else
2214                 client_maximize(self, max_vert, 2, TRUE);
2215         }
2216     }
2217     /* change fullscreen state before shading, as it will affect if the window
2218        can shade or not */
2219     if (fullscreen != self->fullscreen)
2220         client_fullscreen(self, fullscreen, TRUE);
2221     if (shaded != self->shaded)
2222         client_shade(self, shaded);
2223     client_calc_layer(self);
2224     client_change_state(self); /* change the hint to reflect these changes */
2225 }
2226
2227 Client *client_focus_target(Client *self)
2228 {
2229     Client *child;
2230
2231     /* if we have a modal child, then focus it, not us */
2232     child = client_search_modal_child(self);
2233     if (child) return child;
2234     return self;
2235 }
2236
2237 gboolean client_focus(Client *self)
2238 {
2239     XEvent ev;
2240
2241     /* choose the correct target */
2242     self = client_focus_target(self);
2243
2244     if (!self->frame->visible) {
2245         /* update the focus lists */
2246         focus_order_to_top(self);
2247         return FALSE;
2248     }
2249
2250     if (!((self->can_focus || self->focus_notify) &&
2251           (self->desktop == screen_desktop ||
2252            self->desktop == DESKTOP_ALL) &&
2253           !self->iconic))
2254         return FALSE;
2255
2256     /* do a check to see if the window has already been unmapped or destroyed
2257        do this intelligently while watching out for unmaps we've generated
2258        (ignore_unmaps > 0) */
2259     if (XCheckTypedWindowEvent(ob_display, self->window,
2260                                DestroyNotify, &ev)) {
2261         XPutBackEvent(ob_display, &ev);
2262         return FALSE;
2263     }
2264     while (XCheckTypedWindowEvent(ob_display, self->window,
2265                                   UnmapNotify, &ev)) {
2266         if (self->ignore_unmaps) {
2267             self->ignore_unmaps--;
2268         } else {
2269             XPutBackEvent(ob_display, &ev);
2270             return FALSE;
2271         }
2272     }
2273
2274     if (self->can_focus)
2275         /* RevertToPointerRoot causes much more headache than RevertToNone, so
2276            I choose to use it always, hopefully to find errors quicker, if any
2277            are left. (I hate X. I hate focus events.) */
2278         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
2279                        event_lasttime);
2280
2281     if (self->focus_notify) {
2282         XEvent ce;
2283         ce.xclient.type = ClientMessage;
2284         ce.xclient.message_type = prop_atoms.wm_protocols;
2285         ce.xclient.display = ob_display;
2286         ce.xclient.window = self->window;
2287         ce.xclient.format = 32;
2288         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
2289         ce.xclient.data.l[1] = event_lasttime;
2290         ce.xclient.data.l[2] = 0l;
2291         ce.xclient.data.l[3] = 0l;
2292         ce.xclient.data.l[4] = 0l;
2293         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2294     }
2295
2296 #ifdef DEBUG_FOCUS
2297     g_message("%sively focusing %lx at %d", (self->can_focus ? "act" : "pass"),
2298               self->window, (int)
2299               event_lasttime);
2300 #endif
2301
2302     /* Cause the FocusIn to come back to us. Important for desktop switches,
2303        since otherwise we'll have no FocusIn on the queue and send it off to
2304        the focus_backup. */
2305     XSync(ob_display, FALSE);
2306     return TRUE;
2307 }
2308
2309 void client_unfocus(Client *self)
2310 {
2311     g_assert(focus_client == self);
2312 #ifdef DEBUG_FOCUS
2313     g_message("client_unfocus for %lx", self->window);
2314 #endif
2315     focus_fallback(Fallback_Unfocusing);
2316 }
2317
2318 void client_activate(Client *self)
2319 {
2320     if (client_normal(self) && screen_showing_desktop)
2321         screen_show_desktop(FALSE);
2322     if (self->iconic)
2323         client_iconify(self, FALSE, TRUE);
2324     else if (!self->frame->visible)
2325         /* if its not visible for other reasons, then don't mess
2326            with it */
2327         return;
2328     if (self->shaded)
2329         client_shade(self, FALSE);
2330     client_focus(self);
2331     stacking_raise(CLIENT_AS_WINDOW(self));
2332 }
2333
2334 gboolean client_focused(Client *self)
2335 {
2336     return self == focus_client;
2337 }
2338
2339 Icon *client_icon(Client *self, int w, int h)
2340 {
2341     int i;
2342     /* si is the smallest image >= req */
2343     /* li is the largest image < req */
2344     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
2345
2346     if (!self->nicons) return NULL;
2347
2348     for (i = 0; i < self->nicons; ++i) {
2349         size = self->icons[i].width * self->icons[i].height;
2350         if (size < smallest && size >= (unsigned)(w * h)) {
2351             smallest = size;
2352             si = i;
2353         }
2354         if (size > largest && size <= (unsigned)(w * h)) {
2355             largest = size;
2356             li = i;
2357         }
2358     }
2359     if (largest == 0) /* didnt find one smaller than the requested size */
2360         return &self->icons[si];
2361     return &self->icons[li];
2362 }
2363
2364 /* this be mostly ripped from fvwm */
2365 Client *client_find_directional(Client *c, Direction dir)
2366 {
2367     int my_cx, my_cy, his_cx, his_cy;
2368     int offset = 0;
2369     int distance = 0;
2370     int score, best_score;
2371     Client *best_client, *cur;
2372     GList *it;
2373
2374     if(!client_list)
2375         return NULL;
2376
2377     /* first, find the centre coords of the currently focused window */
2378     my_cx = c->frame->area.x + c->frame->area.width / 2;
2379     my_cy = c->frame->area.y + c->frame->area.height / 2;
2380
2381     best_score = -1;
2382     best_client = NULL;
2383
2384     for(it = g_list_first(client_list); it; it = it->next) {
2385         cur = it->data;
2386
2387         /* the currently selected window isn't interesting */
2388         if(cur == c)
2389             continue;
2390         if (!client_normal(cur))
2391             continue;
2392         if(c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL)
2393             continue;
2394         if(cur->iconic)
2395             continue;
2396         if(client_focus_target(cur) == cur &&
2397            !(cur->can_focus || cur->focus_notify))
2398             continue;
2399
2400         /* find the centre coords of this window, from the
2401          * currently focused window's point of view */
2402         his_cx = (cur->frame->area.x - my_cx)
2403             + cur->frame->area.width / 2;
2404         his_cy = (cur->frame->area.y - my_cy)
2405             + cur->frame->area.height / 2;
2406
2407         if(dir > 3) {
2408             int tx;
2409             /* Rotate the diagonals 45 degrees counterclockwise.
2410              * To do this, multiply the matrix /+h +h\ with the
2411              * vector (x y).                   \-h +h/
2412              * h = sqrt(0.5). We can set h := 1 since absolute
2413              * distance doesn't matter here. */
2414             tx = his_cx + his_cy;
2415             his_cy = -his_cx + his_cy;
2416             his_cx = tx;
2417         }
2418
2419         switch(dir) {
2420         case Direction_North :
2421         case Direction_South :
2422         case Direction_NorthEast :
2423         case Direction_SouthWest :
2424             offset = (his_cx < 0) ? -his_cx : his_cx;
2425             distance = (dir == Direction_North || dir == Direction_NorthEast) ?
2426                 -his_cy : his_cy;
2427             break;
2428         case Direction_East :
2429         case Direction_West :
2430         case Direction_SouthEast :
2431         case Direction_NorthWest :
2432             offset = (his_cy < 0) ? -his_cy : his_cy;
2433             distance = (dir == Direction_West || dir == Direction_NorthWest) ?
2434                 -his_cx : his_cx;
2435             break;
2436         }
2437
2438         /* the target must be in the requested direction */
2439         if(distance <= 0)
2440             continue;
2441
2442         /* Calculate score for this window.  The smaller the better. */
2443         score = distance + offset;
2444
2445         /* windows more than 45 degrees off the direction are
2446          * heavily penalized and will only be chosen if nothing
2447          * else within a million pixels */
2448         if(offset > distance)
2449             score += 1000000;
2450
2451         if(best_score == -1 || score < best_score)
2452             best_client = cur,
2453                 best_score = score;
2454     }
2455
2456     return best_client;
2457 }
2458
2459 void client_set_layer(Client *self, int layer)
2460 {
2461     if (layer < 0) {
2462         self->below = TRUE;
2463         self->above = FALSE;
2464     } else if (layer == 0) {
2465         self->below = self->above = FALSE;
2466     } else {
2467         self->below = FALSE;
2468         self->above = TRUE;
2469     }
2470     client_calc_layer(self);
2471     client_change_state(self); /* reflect this in the state hints */
2472 }