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