openbox/client.c

   1 #include "client.h"
   2 #include "screen.h"
   3 #include "moveresize.h"
   4 #include "prop.h"
   5 #include "extensions.h"
   6 #include "frame.h"
   7 #include "event.h"
   8 #include "grab.h"
   9 #include "focus.h"
  10 #include "stacking.h"
  11 #include "dispatch.h"
  12 #include "openbox.h"
  13 #include "group.h"
  14 #include "config.h"
  15
  16 #include <glib.h>
  17 #include <X11/Xutil.h>
  18
  19 /*! The event mask to grab on client windows */
  20 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
  21                           StructureNotifyMask)
  22
  23 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  24                                 ButtonMotionMask)
  25
  26 GList      *client_list      = NULL;
  27 GHashTable *client_map       = NULL;
  28
  29 static Window *client_startup_stack_order = NULL;
  30 static guint  client_startup_stack_size = 0;
  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_move_onscreen(Client *self);
  44 static Client *search_focus_tree(Client *node, Client *skip);
  45 static void client_apply_startup_state(Client *self);
  46 static Client *search_modal_tree(Client *node, Client *skip);
  47
  48 static guint map_hash(Window *w) { return *w; }
  49 static gboolean map_key_comp(Window *w1, Window *w2) { return *w1 == *w2; }
  50
  51 void client_startup()
  52 {
  53     client_map = g_hash_table_new((GHashFunc)map_hash,
  54                                   (GEqualFunc)map_key_comp);
  55
  56     /* save the stacking order on startup! */
  57     PROP_GETA32(ob_root, net_client_list_stacking, window,
  58                 (guint32**)&client_startup_stack_order,
  59                 &client_startup_stack_size);
  60
  61     client_set_list();
  62 }
  63
  64 void client_shutdown()
  65 {
  66     g_hash_table_destroy(client_map);
  67 }
  68
  69 void client_set_list()
  70 {
  71     Window *windows, *win_it;
  72     GList *it;
  73     guint size = g_list_length(client_list);
  74
  75     /* create an array of the window ids */
  76     if (size > 0) {
  77         windows = g_new(Window, size);
  78         win_it = windows;
  79         for (it = client_list; it != NULL; it = it->next, ++win_it)
  80             *win_it = ((Client*)it->data)->window;
  81     } else
  82         windows = NULL;
  83
  84     PROP_SETA32(ob_root, net_client_list, window, (guint32*)windows, size);
  85
  86     if (windows)
  87         g_free(windows);
  88
  89     stacking_set_list();
  90 }
  91
  92 void client_manage_all()
  93 {
  94     unsigned int i, j, nchild;
  95     Window w, *children;
  96     XWMHints *wmhints;
  97     XWindowAttributes attrib;
  98
  99     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
 100
 101     /* remove all icon windows from the list */
 102     for (i = 0; i < nchild; i++) {
 103         if (children[i] == None) continue;
 104         wmhints = XGetWMHints(ob_display, children[i]);
 105         if (wmhints) {
 106             if ((wmhints->flags & IconWindowHint) &&
 107                 (wmhints->icon_window != children[i]))
 108                 for (j = 0; j < nchild; j++)
 109                     if (children[j] == wmhints->icon_window) {
 110                         children[j] = None;
 111                         break;
 112                     }
 113             XFree(wmhints);
 114         }
 115     }
 116
 117     for (i = 0; i < nchild; ++i) {
 118         if (children[i] == None)
 119             continue;
 120         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 121             if (attrib.override_redirect) continue;
 122
 123             if (attrib.map_state != IsUnmapped)
 124                 client_manage(children[i]);
 125         }
 126     }
 127     XFree(children);
 128
 129     /* stack them as they were on startup!
 130        why with stacking_lower? Why, because then windows who aren't in the
 131        stacking list are on the top where you can see them instead of buried
 132        at the bottom! */
 133     for (i = client_startup_stack_size; i > 0; --i) {
 134         Client *c;
 135
 136         w = client_startup_stack_order[i-1];
 137         c = g_hash_table_lookup(client_map, &w);
 138         if (c) stacking_lower(c);
 139     }
 140     g_free(client_startup_stack_order);
 141     client_startup_stack_order = NULL;
 142     client_startup_stack_size = 0;
 143
 144     if (config_focus_new)
 145         focus_fallback(Fallback_NoFocus);
 146 }
 147
 148 void client_manage(Window window)
 149 {
 150     Client *self;
 151     XEvent e;
 152     XWindowAttributes attrib;
 153     XSetWindowAttributes attrib_set;
 154 /*    XWMHints *wmhint; */
 155     guint i;
 156
 157     grab_server(TRUE);
 158
 159     /* check if it has already been unmapped by the time we started mapping
 160        the grab does a sync so we don't have to here */
 161     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 162         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
 163         XPutBackEvent(ob_display, &e);
 164
 165         grab_server(FALSE);
 166         return; /* don't manage it */
 167     }
 168
 169     /* make sure it isn't an override-redirect window */
 170     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 171         attrib.override_redirect) {
 172         grab_server(FALSE);
 173         return; /* don't manage it */
 174     }
 175
 176 /*    /\* is the window a docking app *\/
 177     if ((wmhint = XGetWMHints(ob_display, window))) {
 178         if ((wmhint->flags & StateHint) &&
 179             wmhint->initial_state == WithdrawnState) {
 180             /\* XXX: make dock apps work! *\/
 181             grab_server(FALSE);
 182             XFree(wmhint);
 183             return;
 184         }
 185         XFree(wmhint);
 186     }
 187 */
 188     g_message("Managing window: %lx", window);
 189
 190     /* choose the events we want to receive on the CLIENT window */
 191     attrib_set.event_mask = CLIENT_EVENTMASK;
 192     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 193     XChangeWindowAttributes(ob_display, window,
 194                             CWEventMask|CWDontPropagate, &attrib_set);
 195
 196
 197     /* create the Client struct, and populate it from the hints on the
 198        window */
 199     self = g_new(Client, 1);
 200     self->window = window;
 201     client_get_all(self);
 202
 203     /* remove the client's border (and adjust re gravity) */
 204     client_toggle_border(self, FALSE);
 205
 206     /* specify that if we exit, the window should not be destroyed and should
 207        be reparented back to root automatically */
 208     XChangeSaveSet(ob_display, window, SetModeInsert);
 209
 210     /* create the decoration frame for the client window */
 211     self->frame = frame_new();
 212
 213     frame_grab_client(self->frame, self);
 214
 215     client_apply_startup_state(self);
 216
 217     grab_server(FALSE);
 218
 219     client_list = g_list_append(client_list, self);
 220     stacking_list = g_list_append(stacking_list, self);
 221     g_assert(!g_hash_table_lookup(client_map, &self->window));
 222     g_hash_table_insert(client_map, &self->window, self);
 223
 224     /* update the focus lists */
 225     if (self->desktop == DESKTOP_ALL) {
 226         for (i = 0; i < screen_num_desktops; ++i)
 227             focus_order[i] = g_list_insert(focus_order[i], self, 1);
 228     } else {
 229         i = self->desktop;
 230         focus_order[i] = g_list_insert(focus_order[i], self, 1);
 231     }
 232
 233     stacking_raise(self);
 234
 235     screen_update_struts();
 236
 237     dispatch_client(Event_Client_New, self, 0, 0);
 238
 239     client_showhide(self);
 240
 241     /* focus the new window? */
 242     if (ob_state != State_Starting) {
 243         Client *parent;
 244         gboolean group_foc = FALSE;
 245
 246         parent = NULL;
 247
 248         if (self->group) {
 249             GSList *it;
 250
 251             for (it = self->group->members; it; it = it->next)
 252                 if (client_focused(it->data)) {
 253                     group_foc = TRUE;
 254                     break;
 255                 }
 256         }
 257         if (!group_foc && self->transient_for) {
 258             if (self->transient_for != TRAN_GROUP) {/* transient of a window */
 259                 parent = self->transient_for;
 260             } else { /* transient of a group */
 261                 GSList *it;
 262
 263                 for (it = self->group->members; it; it = it->next)
 264                     if (it->data != self &&
 265                         ((Client*)it->data)->transient_for != TRAN_GROUP)
 266                         parent = it->data;
 267             }
 268         }
 269         /* note the check against Type_Normal, not client_normal(self), which
 270            would also include dialog types. in this case we want more strict
 271            rules for focus */
 272         if ((config_focus_new &&
 273              (self->type == Type_Normal ||
 274               (self->type == Type_Dialog &&
 275                (group_foc ||
 276                 (!parent && (!self->group ||
 277                              !self->group->members->next)))))) ||
 278             (parent && (client_focused(parent) ||
 279                         search_focus_tree(parent, parent)))) {
 280             client_focus(self);
 281         }
 282     }
 283
 284     /* update the list hints */
 285     client_set_list();
 286
 287     /* make sure the window is visible */
 288     client_move_onscreen(self);
 289
 290     dispatch_client(Event_Client_Mapped, self, 0, 0);
 291
 292     g_message("Managed window 0x%lx", window);
 293 }
 294
 295 void client_unmanage_all()
 296 {
 297     while (client_list != NULL)
 298         client_unmanage(client_list->data);
 299 }
 300
 301 void client_unmanage(Client *self)
 302 {
 303     guint i;
 304     int j;
 305     GSList *it;
 306
 307     g_message("Unmanaging window: %lx", self->window);
 308
 309     dispatch_client(Event_Client_Destroy, self, 0, 0);
 310     g_assert(self != NULL);
 311
 312     /* remove the window from our save set */
 313     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 314
 315     /* we dont want events no more */
 316     XSelectInput(ob_display, self->window, NoEventMask);
 317
 318     frame_hide(self->frame);
 319
 320     client_list = g_list_remove(client_list, self);
 321     stacking_list = g_list_remove(stacking_list, self);
 322     g_hash_table_remove(client_map, &self->window);
 323
 324     /* update the focus lists */
 325     if (self->desktop == DESKTOP_ALL) {
 326         for (i = 0; i < screen_num_desktops; ++i)
 327             focus_order[i] = g_list_remove(focus_order[i], self);
 328     } else {
 329         i = self->desktop;
 330         focus_order[i] = g_list_remove(focus_order[i], self);
 331     }
 332
 333     /* once the client is out of the list, update the struts to remove it's
 334        influence */
 335     screen_update_struts();
 336
 337     /* tell our parent(s) that we're gone */
 338     if (self->transient_for == TRAN_GROUP) { /* transient of group */
 339         GSList *it;
 340
 341         for (it = self->group->members; it; it = it->next)
 342             if (it->data != self)
 343                 ((Client*)it->data)->transients =
 344                     g_slist_remove(((Client*)it->data)->transients, self);
 345     } else if (self->transient_for) {        /* transient of window */
 346         self->transient_for->transients =
 347             g_slist_remove(self->transient_for->transients, self);
 348     }
 349
 350     /* tell our transients that we're gone */
 351     for (it = self->transients; it != NULL; it = it->next) {
 352         if (((Client*)it->data)->transient_for != TRAN_GROUP) {
 353             ((Client*)it->data)->transient_for = NULL;
 354             client_calc_layer(it->data);
 355         }
 356     }
 357
 358     if (moveresize_client == self)
 359         moveresize_end(TRUE);
 360
 361     if (focus_client == self) {
 362         XEvent e;
 363
 364         /* focus the last focused window on the desktop, and ignore enter
 365            events from the unmap so it doesnt mess with the focus */
 366         while (XCheckTypedEvent(ob_display, EnterNotify, &e));
 367         client_unfocus(self);
 368     }
 369
 370     /* remove from its group */
 371     if (self->group) {
 372         group_remove(self->group, self);
 373         self->group = NULL;
 374     }
 375
 376     /* dispatch the unmapped event */
 377     dispatch_client(Event_Client_Unmapped, self, 0, 0);
 378     g_assert(self != NULL);
 379
 380     /* give the client its border back */
 381     client_toggle_border(self, TRUE);
 382
 383     /* reparent the window out of the frame, and free the frame */
 384     frame_release_client(self->frame, self);
 385     self->frame = NULL;
 386
 387     if (ob_state != State_Exiting) {
 388         /* these values should not be persisted across a window
 389            unmapping/mapping */
 390         prop_erase(self->window, prop_atoms.net_wm_desktop);
 391         prop_erase(self->window, prop_atoms.net_wm_state);
 392     } else {
 393         /* if we're left in an iconic state, the client wont be mapped. this is
 394            bad, since we will no longer be managing the window on restart */
 395         if (self->iconic)
 396             XMapWindow(ob_display, self->window);
 397     }
 398
 399
 400     g_message("Unmanaged window 0x%lx", self->window);
 401
 402     /* free all data allocated in the client struct */
 403     g_slist_free(self->transients);
 404     for (j = 0; j < self->nicons; ++j)
 405         g_free(self->icons[j].data);
 406     if (self->nicons > 0)
 407         g_free(self->icons);
 408     g_free(self->title);
 409     g_free(self->icon_title);
 410     g_free(self->name);
 411     g_free(self->class);
 412     g_free(self->role);
 413     g_free(self);
 414
 415     /* update the list hints */
 416     client_set_list();
 417 }
 418
 419 static void client_move_onscreen(Client *self)
 420 {
 421     Rect *a;
 422     int x = self->frame->area.x, y = self->frame->area.y;
 423
 424     a = screen_area(self->desktop);
 425     if (x >= a->x + a->width - 1)
 426         x = a->x + a->width - self->frame->area.width;
 427     if (y >= a->y + a->height - 1)
 428         y = a->y + a->height - self->frame->area.height;
 429     if (x + self->frame->area.width - 1 < a->x)
 430         x = a->x;
 431     if (y + self->frame->area.height - 1< a->y)
 432         y = a->y;
 433
 434     frame_frame_gravity(self->frame, &x, &y); /* get where the client
 435                                               should be */
 436     client_configure(self , Corner_TopLeft, x, y,
 437                      self->area.width, self->area.height,
 438                      TRUE, TRUE);
 439 }
 440
 441 static void client_toggle_border(Client *self, gboolean show)
 442 {
 443     /* adjust our idea of where the client is, based on its border. When the
 444        border is removed, the client should now be considered to be in a
 445        different position.
 446        when re-adding the border to the client, the same operation needs to be
 447        reversed. */
 448     int oldx = self->area.x, oldy = self->area.y;
 449     int x = oldx, y = oldy;
 450     switch(self->gravity) {
 451     default:
 452     case NorthWestGravity:
 453     case WestGravity:
 454     case SouthWestGravity:
 455         break;
 456     case NorthEastGravity:
 457     case EastGravity:
 458     case SouthEastGravity:
 459         if (show) x -= self->border_width * 2;
 460         else      x += self->border_width * 2;
 461         break;
 462     case NorthGravity:
 463     case SouthGravity:
 464     case CenterGravity:
 465     case ForgetGravity:
 466     case StaticGravity:
 467         if (show) x -= self->border_width;
 468         else      x += self->border_width;
 469         break;
 470     }
 471     switch(self->gravity) {
 472     default:
 473     case NorthWestGravity:
 474     case NorthGravity:
 475     case NorthEastGravity:
 476         break;
 477     case SouthWestGravity:
 478     case SouthGravity:
 479     case SouthEastGravity:
 480         if (show) y -= self->border_width * 2;
 481         else      y += self->border_width * 2;
 482         break;
 483     case WestGravity:
 484     case EastGravity:
 485     case CenterGravity:
 486     case ForgetGravity:
 487     case StaticGravity:
 488         if (show) y -= self->border_width;
 489         else      y += self->border_width;
 490         break;
 491     }
 492     self->area.x = x;
 493     self->area.y = y;
 494
 495     if (show) {
 496         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 497
 498         /* move the client so it is back it the right spot _with_ its
 499            border! */
 500         if (x != oldx || y != oldy)
 501             XMoveWindow(ob_display, self->window, x, y);
 502     } else
 503         XSetWindowBorderWidth(ob_display, self->window, 0);
 504 }
 505
 506
 507 static void client_get_all(Client *self)
 508 {
 509     /* update EVERYTHING!! */
 510
 511     self->ignore_unmaps = 0;
 512
 513     /* defaults */
 514     self->frame = NULL;
 515     self->title = self->icon_title = NULL;
 516     self->name = self->class = self->role = NULL;
 517     self->wmstate = NormalState;
 518     self->transient = FALSE;
 519     self->transients = NULL;
 520     self->transient_for = NULL;
 521     self->layer = -1;
 522     self->urgent = FALSE;
 523     self->positioned = FALSE;
 524     self->disabled_decorations = 0;
 525     self->group = NULL;
 526     self->nicons = 0;
 527
 528     client_get_area(self);
 529     client_update_transient_for(self);
 530     client_update_wmhints(self);
 531     client_get_desktop(self);
 532     client_get_state(self);
 533     client_get_shaped(self);
 534
 535     client_get_mwm_hints(self);
 536     client_get_type(self);/* this can change the mwmhints for special cases */
 537
 538     client_update_protocols(self);
 539
 540     client_get_gravity(self); /* get the attribute gravity */
 541     client_update_normal_hints(self); /* this may override the attribute
 542                                          gravity */
 543
 544     /* got the type, the mwmhints, the protocols, and the normal hints
 545        (min/max sizes), so we're ready to set up the decorations/functions */
 546     client_setup_decor_and_functions(self);
 547
 548     client_update_title(self);
 549     client_update_icon_title(self);
 550     client_update_class(self);
 551     client_update_strut(self);
 552     client_update_icons(self);
 553     client_update_kwm_icon(self);
 554
 555     client_change_state(self);
 556 }
 557
 558 static void client_get_area(Client *self)
 559 {
 560     XWindowAttributes wattrib;
 561     Status ret;
 562
 563     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 564     g_assert(ret != BadWindow);
 565
 566     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
 567     self->border_width = wattrib.border_width;
 568 }
 569
 570 static void client_get_desktop(Client *self)
 571 {
 572     guint32 d;
 573
 574     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
 575         if (d >= screen_num_desktops && d != DESKTOP_ALL)
 576             d = screen_num_desktops - 1;
 577         self->desktop = d;
 578     } else {
 579         gboolean trdesk = FALSE;
 580
 581        if (self->transient_for) {
 582            if (self->transient_for != TRAN_GROUP) {
 583                 self->desktop = self->transient_for->desktop;
 584                 trdesk = TRUE;
 585             } else {
 586                 GSList *it;
 587
 588                 for (it = self->group->members; it; it = it->next)
 589                     if (it->data != self &&
 590                         ((Client*)it->data)->transient_for != TRAN_GROUP) {
 591                         self->desktop = ((Client*)it->data)->desktop;
 592                         trdesk = TRUE;
 593                         break;
 594                     }
 595             }
 596        }
 597        if (!trdesk)
 598            /* defaults to the current desktop */
 599            self->desktop = screen_desktop;
 600
 601         /* set the desktop hint, to make sure that it always exists */
 602         PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 603     }
 604 }
 605
 606 static void client_get_state(Client *self)
 607 {
 608     guint32 *state;
 609     guint num;
 610
 611     self->modal = self->shaded = self->max_horz = self->max_vert =
 612         self->fullscreen = self->above = self->below = self->iconic =
 613         self->skip_taskbar = self->skip_pager = FALSE;
 614
 615     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
 616         gulong i;
 617         for (i = 0; i < num; ++i) {
 618             if (state[i] == prop_atoms.net_wm_state_modal)
 619                 self->modal = TRUE;
 620             else if (state[i] == prop_atoms.net_wm_state_shaded)
 621                 self->shaded = TRUE;
 622             else if (state[i] == prop_atoms.net_wm_state_hidden)
 623                 self->iconic = TRUE;
 624             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
 625                 self->skip_taskbar = TRUE;
 626             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
 627                 self->skip_pager = TRUE;
 628             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
 629                 self->fullscreen = TRUE;
 630             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
 631                 self->max_vert = TRUE;
 632             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
 633                 self->max_horz = TRUE;
 634             else if (state[i] == prop_atoms.net_wm_state_above)
 635                 self->above = TRUE;
 636             else if (state[i] == prop_atoms.net_wm_state_below)
 637                 self->below = TRUE;
 638         }
 639
 640         g_free(state);
 641     }
 642 }
 643
 644 static void client_get_shaped(Client *self)
 645 {
 646     self->shaped = FALSE;
 647 #ifdef   SHAPE
 648     if (extensions_shape) {
 649         int foo;
 650         guint ufoo;
 651         int s;
 652
 653         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
 654
 655         XShapeQueryExtents(ob_display, self->window, &s, &foo,
 656                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
 657                            &ufoo);
 658         self->shaped = (s != 0);
 659     }
 660 #endif
 661 }
 662
 663 void client_update_transient_for(Client *self)
 664 {
 665     Window t = None;
 666     Client *c = NULL;
 667
 668     if (XGetTransientForHint(ob_display, self->window, &t) &&
 669         t != self->window) { /* cant be transient to itself! */
 670         self->transient = TRUE;
 671         c = g_hash_table_lookup(client_map, &t);
 672         g_assert(c != self);/* if this happens then we need to check for it*/
 673
 674         if (!c && self->group) {
 675             /* not transient to a client, see if it is transient for a
 676                group */
 677             if (t == self->group->leader ||
 678                 t == None ||
 679                 t == ob_root) {
 680                 /* window is a transient for its group! */
 681                 c = TRAN_GROUP;
 682             }
 683         }
 684     } else
 685         self->transient = FALSE;
 686
 687     /* if anything has changed... */
 688     if (c != self->transient_for) {
 689         if (self->transient_for == TRAN_GROUP) { /* transient of group */
 690             GSList *it;
 691
 692             /* remove from old parents */
 693             for (it = self->group->members; it; it = it->next)
 694                 if (it->data != self)
 695                     ((Client*)it->data)->transients =
 696                         g_slist_remove(((Client*)it->data)->transients, self);
 697         } else if (self->transient_for != NULL) { /* transient of window */
 698             /* remove from old parent */
 699             self->transient_for->transients =
 700                 g_slist_remove(self->transient_for->transients, self);
 701         }
 702         self->transient_for = c;
 703         if (self->transient_for == TRAN_GROUP) { /* transient of group */
 704             GSList *it;
 705
 706             /* add to new parents */
 707             for (it = self->group->members; it; it = it->next)
 708                 if (it->data != self)
 709                     ((Client*)it->data)->transients =
 710                         g_slist_append(((Client*)it->data)->transients, self);
 711         } else if (self->transient_for != NULL) { /* transient of window */
 712             /* add to new parent */
 713             self->transient_for->transients =
 714                 g_slist_append(self->transient_for->transients, self);
 715         }
 716     }
 717 }
 718
 719 static void client_get_mwm_hints(Client *self)
 720 {
 721     guint num;
 722     guint32 *hints;
 723
 724     self->mwmhints.flags = 0; /* default to none */
 725
 726     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
 727                     &hints, &num)) {
 728         if (num >= MWM_ELEMENTS) {
 729             self->mwmhints.flags = hints[0];
 730             self->mwmhints.functions = hints[1];
 731             self->mwmhints.decorations = hints[2];
 732         }
 733         g_free(hints);
 734     }
 735 }
 736
 737 void client_get_type(Client *self)
 738 {
 739     guint num, i;
 740     guint32 *val;
 741
 742     self->type = -1;
 743
 744     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
 745         /* use the first value that we know about in the array */
 746         for (i = 0; i < num; ++i) {
 747             if (val[i] == prop_atoms.net_wm_window_type_desktop)
 748                 self->type = Type_Desktop;
 749             else if (val[i] == prop_atoms.net_wm_window_type_dock)
 750                 self->type = Type_Dock;
 751             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
 752                 self->type = Type_Toolbar;
 753             else if (val[i] == prop_atoms.net_wm_window_type_menu)
 754                 self->type = Type_Menu;
 755             else if (val[i] == prop_atoms.net_wm_window_type_utility)
 756                 self->type = Type_Utility;
 757             else if (val[i] == prop_atoms.net_wm_window_type_splash)
 758                 self->type = Type_Splash;
 759             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
 760                 self->type = Type_Dialog;
 761             else if (val[i] == prop_atoms.net_wm_window_type_normal)
 762                 self->type = Type_Normal;
 763             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
 764                 /* prevent this window from getting any decor or
 765                    functionality */
 766                 self->mwmhints.flags &= (MwmFlag_Functions |
 767                                          MwmFlag_Decorations);
 768                 self->mwmhints.decorations = 0;
 769                 self->mwmhints.functions = 0;
 770             }
 771             if (self->type != (WindowType) -1)
 772                 break; /* grab the first legit type */
 773         }
 774         g_free(val);
 775     }
 776
 777     if (self->type == (WindowType) -1) {
 778         /*the window type hint was not set, which means we either classify
 779           ourself as a normal window or a dialog, depending on if we are a
 780           transient. */
 781         if (self->transient)
 782             self->type = Type_Dialog;
 783         else
 784             self->type = Type_Normal;
 785     }
 786
 787     /* this makes sure that these windows appear on all desktops */
 788     if (self->type == Type_Desktop)
 789         self->desktop = DESKTOP_ALL;
 790 }
 791
 792 void client_update_protocols(Client *self)
 793 {
 794     guint32 *proto;
 795     guint num_return, i;
 796
 797     self->focus_notify = FALSE;
 798     self->delete_window = FALSE;
 799
 800     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
 801         for (i = 0; i < num_return; ++i) {
 802             if (proto[i] == prop_atoms.wm_delete_window) {
 803                 /* this means we can request the window to close */
 804                 self->delete_window = TRUE;
 805             } else if (proto[i] == prop_atoms.wm_take_focus)
 806                 /* if this protocol is requested, then the window will be
 807                    notified whenever we want it to receive focus */
 808                 self->focus_notify = TRUE;
 809         }
 810         g_free(proto);
 811     }
 812 }
 813
 814 static void client_get_gravity(Client *self)
 815 {
 816     XWindowAttributes wattrib;
 817     Status ret;
 818
 819     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 820     g_assert(ret != BadWindow);
 821     self->gravity = wattrib.win_gravity;
 822 }
 823
 824 void client_update_normal_hints(Client *self)
 825 {
 826     XSizeHints size;
 827     long ret;
 828     int oldgravity = self->gravity;
 829
 830     /* defaults */
 831     self->min_ratio = 0.0f;
 832     self->max_ratio = 0.0f;
 833     SIZE_SET(self->size_inc, 1, 1);
 834     SIZE_SET(self->base_size, 0, 0);
 835     SIZE_SET(self->min_size, 0, 0);
 836     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
 837
 838     /* get the hints from the window */
 839     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
 840         self->positioned = !!(size.flags & (PPosition|USPosition));
 841
 842         if (size.flags & PWinGravity) {
 843             self->gravity = size.win_gravity;
 844
 845             /* if the client has a frame, i.e. has already been mapped and
 846                is changing its gravity */
 847             if (self->frame && self->gravity != oldgravity) {
 848                 /* move our idea of the client's position based on its new
 849                    gravity */
 850                 self->area.x = self->frame->area.x;
 851                 self->area.y = self->frame->area.y;
 852                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
 853             }
 854         }
 855
 856         if (size.flags & PAspect) {
 857             if (size.min_aspect.y)
 858                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
 859             if (size.max_aspect.y)
 860                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
 861         }
 862
 863         if (size.flags & PMinSize)
 864             SIZE_SET(self->min_size, size.min_width, size.min_height);
 865
 866         if (size.flags & PMaxSize)
 867             SIZE_SET(self->max_size, size.max_width, size.max_height);
 868
 869         if (size.flags & PBaseSize)
 870             SIZE_SET(self->base_size, size.base_width, size.base_height);
 871
 872         if (size.flags & PResizeInc)
 873             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
 874     }
 875 }
 876
 877 void client_setup_decor_and_functions(Client *self)
 878 {
 879     /* start with everything (cept fullscreen) */
 880     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
 881         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize |
 882         Decor_Shade;
 883     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
 884         Func_Shade;
 885     if (self->delete_window) {
 886         self->decorations |= Decor_Close;
 887         self->functions |= Func_Close;
 888     }
 889
 890     if (!(self->min_size.width < self->max_size.width ||
 891           self->min_size.height < self->max_size.height)) {
 892         self->decorations &= ~(Decor_Maximize | Decor_Handle);
 893         self->functions &= ~(Func_Resize | Func_Maximize);
 894     }
 895
 896     switch (self->type) {
 897     case Type_Normal:
 898         /* normal windows retain all of the possible decorations and
 899            functionality, and are the only windows that you can fullscreen */
 900         self->functions |= Func_Fullscreen;
 901         break;
 902
 903     case Type_Dialog:
 904     case Type_Utility:
 905         /* these windows cannot be maximized */
 906         self->decorations &= ~Decor_Maximize;
 907         self->functions &= ~Func_Maximize;
 908         break;
 909
 910     case Type_Menu:
 911     case Type_Toolbar:
 912         /* these windows get less functionality */
 913         self->decorations &= ~(Decor_Iconify | Decor_Handle);
 914         self->functions &= ~(Func_Iconify | Func_Resize);
 915         break;
 916
 917     case Type_Desktop:
 918     case Type_Dock:
 919     case Type_Splash:
 920         /* none of these windows are manipulated by the window manager */
 921         self->decorations = 0;
 922         self->functions = 0;
 923         break;
 924     }
 925
 926     /* Mwm Hints are applied subtractively to what has already been chosen for
 927        decor and functionality */
 928     if (self->mwmhints.flags & MwmFlag_Decorations) {
 929         if (! (self->mwmhints.decorations & MwmDecor_All)) {
 930             if (! (self->mwmhints.decorations & MwmDecor_Border))
 931                 self->decorations &= ~Decor_Border;
 932             if (! (self->mwmhints.decorations & MwmDecor_Handle))
 933                 self->decorations &= ~Decor_Handle;
 934             if (! (self->mwmhints.decorations & MwmDecor_Title))
 935                 self->decorations &= ~Decor_Titlebar;
 936             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
 937                 self->decorations &= ~Decor_Iconify;
 938             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
 939                 self->decorations &= ~Decor_Maximize;
 940         }
 941     }
 942
 943     if (self->mwmhints.flags & MwmFlag_Functions) {
 944         if (! (self->mwmhints.functions & MwmFunc_All)) {
 945             if (! (self->mwmhints.functions & MwmFunc_Resize))
 946                 self->functions &= ~Func_Resize;
 947             if (! (self->mwmhints.functions & MwmFunc_Move))
 948                 self->functions &= ~Func_Move;
 949             if (! (self->mwmhints.functions & MwmFunc_Iconify))
 950                 self->functions &= ~Func_Iconify;
 951             if (! (self->mwmhints.functions & MwmFunc_Maximize))
 952                 self->functions &= ~Func_Maximize;
 953             /* dont let mwm hints kill the close button
 954                if (! (self->mwmhints.functions & MwmFunc_Close))
 955                self->functions &= ~Func_Close; */
 956         }
 957     }
 958
 959     /* can't maximize without moving/resizing */
 960     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
 961         self->functions &= ~(Func_Maximize | Func_Fullscreen);
 962
 963     /* finally, user specified disabled decorations are applied to subtract
 964        decorations */
 965     if (self->disabled_decorations & Decor_Titlebar)
 966         self->decorations &= ~Decor_Titlebar;
 967     if (self->disabled_decorations & Decor_Handle)
 968         self->decorations &= ~Decor_Handle;
 969     if (self->disabled_decorations & Decor_Border)
 970         self->decorations &= ~Decor_Border;
 971     if (self->disabled_decorations & Decor_Iconify)
 972         self->decorations &= ~Decor_Iconify;
 973     if (self->disabled_decorations & Decor_Maximize)
 974         self->decorations &= ~Decor_Maximize;
 975     if (self->disabled_decorations & Decor_AllDesktops)
 976         self->decorations &= ~Decor_AllDesktops;
 977     if (self->disabled_decorations & Decor_Shade)
 978         self->decorations &= ~Decor_Shade;
 979     if (self->disabled_decorations & Decor_Close)
 980         self->decorations &= ~Decor_Close;
 981
 982     /* if we don't have a titlebar, then we cannot shade! */
 983     if (!(self->decorations & Decor_Titlebar))
 984         self->functions &= ~Func_Shade;
 985
 986     /* now we need to check against rules for the client's current state */
 987     if (self->fullscreen) {
 988         self->functions &= (Func_Close | Func_Fullscreen | Func_Iconify);
 989         self->decorations = 0;
 990     }
 991
 992     client_change_allowed_actions(self);
 993
 994     if (self->frame) {
 995         /* change the decors on the frame, and with more/less decorations,
 996            we may also need to be repositioned */
 997         frame_adjust_area(self->frame, TRUE, TRUE);
 998         /* with new decor, the window's maximized size may change */
 999         client_remaximize(self);
1000     }
1001 }
1002
1003 static void client_change_allowed_actions(Client *self)
1004 {
1005     guint32 actions[9];
1006     int num = 0;
1007
1008     actions[num++] = prop_atoms.net_wm_action_change_desktop;
1009
1010     if (self->functions & Func_Shade)
1011         actions[num++] = prop_atoms.net_wm_action_shade;
1012     if (self->functions & Func_Close)
1013         actions[num++] = prop_atoms.net_wm_action_close;
1014     if (self->functions & Func_Move)
1015         actions[num++] = prop_atoms.net_wm_action_move;
1016     if (self->functions & Func_Iconify)
1017         actions[num++] = prop_atoms.net_wm_action_minimize;
1018     if (self->functions & Func_Resize)
1019         actions[num++] = prop_atoms.net_wm_action_resize;
1020     if (self->functions & Func_Fullscreen)
1021         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1022     if (self->functions & Func_Maximize) {
1023         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1024         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1025     }
1026
1027     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1028
1029     /* make sure the window isn't breaking any rules now */
1030
1031     if (!(self->functions & Func_Shade) && self->shaded) {
1032         if (self->frame) client_shade(self, FALSE);
1033         else self->shaded = FALSE;
1034     }
1035     if (!(self->functions & Func_Iconify) && self->iconic) {
1036         g_message("UNSETTING ICONIC");
1037         if (self->frame) client_iconify(self, FALSE, TRUE);
1038         else self->iconic = FALSE;
1039     }
1040     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
1041         if (self->frame) client_fullscreen(self, FALSE, TRUE);
1042         else self->fullscreen = FALSE;
1043     }
1044     if (!(self->functions & Func_Maximize) && (self->max_horz ||
1045                                                self->max_vert)) {
1046         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
1047         else self->max_vert = self->max_horz = FALSE;
1048     }
1049 }
1050
1051 void client_remaximize(Client *self)
1052 {
1053     int dir;
1054     if (self->max_horz && self->max_vert)
1055         dir = 0;
1056     else if (self->max_horz)
1057         dir = 1;
1058     else if (self->max_vert)
1059         dir = 2;
1060     else
1061         return; /* not maximized */
1062     self->max_horz = self->max_vert = FALSE;
1063     client_maximize(self, TRUE, dir, FALSE);
1064 }
1065
1066 void client_update_wmhints(Client *self)
1067 {
1068     XWMHints *hints;
1069     gboolean ur = FALSE;
1070     GSList *it;
1071
1072     /* assume a window takes input if it doesnt specify */
1073     self->can_focus = TRUE;
1074
1075     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1076         if (hints->flags & InputHint)
1077             self->can_focus = hints->input;
1078
1079         /* only do this when first managing the window *AND* when we aren't
1080            starting up! */
1081         if (ob_state != State_Starting && self->frame == NULL)
1082             if (hints->flags & StateHint)
1083                 self->iconic = hints->initial_state == IconicState;
1084
1085         if (hints->flags & XUrgencyHint)
1086             ur = TRUE;
1087
1088         if (!(hints->flags & WindowGroupHint))
1089             hints->window_group = None;
1090
1091         /* did the group state change? */
1092         if (hints->window_group !=
1093             (self->group ? self->group->leader : None)) {
1094             /* remove from the old group if there was one */
1095             if (self->group != NULL) {
1096                 /* remove transients of the group */
1097                 for (it = self->group->members; it; it = it->next)
1098                     if (it->data != self &&
1099                         ((Client*)it->data)->transient_for == TRAN_GROUP) {
1100                         self->transients = g_slist_remove(self->transients,
1101                                                           it->data);
1102                     }
1103                 group_remove(self->group, self);
1104                 self->group = NULL;
1105             }
1106             if (hints->window_group != None) {
1107                 self->group = group_add(hints->window_group, self);
1108
1109                 /* add other transients of the group that are already
1110                    set up */
1111                 for (it = self->group->members; it; it = it->next)
1112                     if (it->data != self &&
1113                         ((Client*)it->data)->transient_for == TRAN_GROUP)
1114                         self->transients = g_slist_append(self->transients,
1115                                                           it->data);
1116             }
1117
1118             /* because the self->transient flag wont change from this call,
1119                we don't need to update the window's type and such, only its
1120                transient_for, and the transients lists of other windows in
1121                the group may be affected */
1122             client_update_transient_for(self);
1123         }
1124
1125         client_update_kwm_icon(self);
1126         /* try get the kwm icon first, this is a fallback only */
1127         if (self->pixmap_icon == None) {
1128             if (hints->flags & IconPixmapHint) {
1129                 if (self->pixmap_icon == None) {
1130                     self->pixmap_icon = hints->icon_pixmap;
1131                     if (hints->flags & IconMaskHint)
1132                         self->pixmap_icon_mask = hints->icon_mask;
1133                     else
1134                         self->pixmap_icon_mask = None;
1135
1136                     if (self->frame)
1137                         frame_adjust_icon(self->frame);
1138                 }
1139             }
1140         }
1141
1142         XFree(hints);
1143     }
1144
1145     if (ur != self->urgent) {
1146         self->urgent = ur;
1147         g_message("Urgent Hint for 0x%lx: %s", self->window,
1148                   ur ? "ON" : "OFF");
1149         /* fire the urgent callback if we're mapped, otherwise, wait until
1150            after we're mapped */
1151         if (self->frame)
1152             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1153     }
1154 }
1155
1156 void client_update_title(Client *self)
1157 {
1158     char *data = NULL;
1159
1160     g_free(self->title);
1161
1162     /* try netwm */
1163     if (!PROP_GETS(self->window, net_wm_name, utf8, &data))
1164         /* try old x stuff */
1165         if (!PROP_GETS(self->window, wm_name, locale, &data))
1166             data = g_strdup("Unnamed Window");
1167
1168     /* look for duplicates and append a number */
1169
1170     PROP_SETS(self->window, net_wm_visible_name, data);
1171
1172     self->title = data;
1173
1174     if (self->frame)
1175         frame_adjust_title(self->frame);
1176 }
1177
1178 void client_update_icon_title(Client *self)
1179 {
1180     char *data = NULL;
1181
1182     g_free(self->icon_title);
1183
1184     /* try netwm */
1185     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1186         /* try old x stuff */
1187         if (!PROP_GETS(self->window, wm_icon_name, locale, &data))
1188             data = g_strdup("Unnamed Window");
1189
1190     PROP_SETS(self->window, net_wm_visible_icon_name, data);
1191
1192     self->icon_title = data;
1193 }
1194
1195 void client_update_class(Client *self)
1196 {
1197     char **data;
1198     char *s;
1199
1200     if (self->name) g_free(self->name);
1201     if (self->class) g_free(self->class);
1202     if (self->role) g_free(self->role);
1203
1204     self->name = self->class = self->role = NULL;
1205
1206     if (PROP_GETSS(self->window, wm_class, locale, &data)) {
1207         if (data[0]) {
1208             self->name = g_strdup(data[0]);
1209             if (data[1])
1210                 self->class = g_strdup(data[1]);
1211         }
1212         g_strfreev(data);
1213     }
1214
1215     if (PROP_GETS(self->window, wm_window_role, locale, &s))
1216         self->role = g_strdup(s);
1217
1218     if (self->name == NULL) self->name = g_strdup("");
1219     if (self->class == NULL) self->class = g_strdup("");
1220     if (self->role == NULL) self->role = g_strdup("");
1221 }
1222
1223 void client_update_strut(Client *self)
1224 {
1225     guint num;
1226     guint32 *data;
1227
1228     if (!PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1229         STRUT_SET(self->strut, 0, 0, 0, 0);
1230     } else {
1231         if (num == 4)
1232             STRUT_SET(self->strut, data[0], data[2], data[1], data[3]);
1233         else
1234             STRUT_SET(self->strut, 0, 0, 0, 0);
1235         g_free(data);
1236     }
1237
1238     /* updating here is pointless while we're being mapped cuz we're not in
1239        the client list yet */
1240     if (self->frame)
1241         screen_update_struts();
1242 }
1243
1244 void client_update_icons(Client *self)
1245 {
1246     guint num;
1247     guint32 *data;
1248     guint w, h, i;
1249     int j;
1250
1251     for (j = 0; j < self->nicons; ++j)
1252         g_free(self->icons[j].data);
1253     if (self->nicons > 0)
1254         g_free(self->icons);
1255     self->nicons = 0;
1256
1257     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
1258         /* figure out how many valid icons are in here */
1259         i = 0;
1260         while (num - i > 2) {
1261             w = data[i++];
1262             h = data[i++];
1263             i += w * h;
1264             if (i > num) break;
1265             ++self->nicons;
1266         }
1267
1268         self->icons = g_new(Icon, self->nicons);
1269
1270         /* store the icons */
1271         i = 0;
1272         for (j = 0; j < self->nicons; ++j) {
1273             w = self->icons[j].width = data[i++];
1274             h = self->icons[j].height = data[i++];
1275             self->icons[j].data =
1276                 g_memdup(&data[i], w * h * sizeof(gulong));
1277             i += w * h;
1278             g_assert(i <= num);
1279         }
1280
1281         g_free(data);
1282     }
1283
1284     if (self->frame)
1285         frame_adjust_icon(self->frame);
1286 }
1287
1288 void client_update_kwm_icon(Client *self)
1289 {
1290     guint num;
1291     guint32 *data;
1292
1293     if (!PROP_GETA32(self->window, kwm_win_icon, kwm_win_icon, &data, &num)) {
1294         self->pixmap_icon = self->pixmap_icon_mask = None;
1295     } else {
1296         if (num == 2) {
1297             self->pixmap_icon = data[0];
1298             self->pixmap_icon_mask = data[1];
1299         } else
1300             self->pixmap_icon = self->pixmap_icon_mask = None;
1301         g_free(data);
1302     }
1303     if (self->frame)
1304         frame_adjust_icon(self->frame);
1305 }
1306
1307 static void client_change_state(Client *self)
1308 {
1309     guint32 state[2];
1310     guint32 netstate[10];
1311     guint num;
1312
1313     state[0] = self->wmstate;
1314     state[1] = None;
1315     PROP_SETA32(self->window, wm_state, wm_state, state, 2);
1316
1317     num = 0;
1318     if (self->modal)
1319         netstate[num++] = prop_atoms.net_wm_state_modal;
1320     if (self->shaded)
1321         netstate[num++] = prop_atoms.net_wm_state_shaded;
1322     if (self->iconic)
1323         netstate[num++] = prop_atoms.net_wm_state_hidden;
1324     if (self->skip_taskbar)
1325         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1326     if (self->skip_pager)
1327         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1328     if (self->fullscreen)
1329         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1330     if (self->max_vert)
1331         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1332     if (self->max_horz)
1333         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1334     if (self->above)
1335         netstate[num++] = prop_atoms.net_wm_state_above;
1336     if (self->below)
1337         netstate[num++] = prop_atoms.net_wm_state_below;
1338     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
1339
1340     client_calc_layer(self);
1341
1342     if (self->frame)
1343         frame_adjust_state(self->frame);
1344 }
1345
1346 static Client *search_focus_tree(Client *node, Client *skip)
1347 {
1348     GSList *it;
1349     Client *ret;
1350
1351     for (it = node->transients; it != NULL; it = it->next) {
1352         Client *c = it->data;
1353         if (c == skip) continue; /* circular? */
1354         if ((ret = search_focus_tree(c, skip))) return ret;
1355         if (client_focused(c)) return c;
1356     }
1357     return NULL;
1358 }
1359
1360 static void calc_recursive(Client *self, StackLayer l, gboolean raised)
1361 {
1362     StackLayer old;
1363     GSList *it;
1364
1365     old = self->layer;
1366     self->layer = l;
1367
1368     for (it = self->transients; it; it = it->next)
1369         calc_recursive(it->data, l, raised ? raised : l != old);
1370
1371     if (!raised && l != old)
1372         if (self->frame)
1373             stacking_raise(self);
1374 }
1375
1376 void client_calc_layer(Client *self)
1377 {
1378     StackLayer l;
1379     gboolean f;
1380
1381     /* transients take on the layer of their parents */
1382     if (self->transient_for) {
1383         if (self->transient_for != TRAN_GROUP) {
1384             self = self->transient_for;
1385         } else {
1386             GSList *it;
1387
1388             for (it = self->group->members; it; it = it->next)
1389                 if (it->data != self &&
1390                     ((Client*)it->data)->transient_for != TRAN_GROUP) {
1391                     self = it->data;
1392                     break;
1393                 }
1394         }
1395     }
1396
1397     /* is us or one of our transients focused? */
1398     if (client_focused(self))
1399         f = TRUE;
1400     else if (search_focus_tree(self, self))
1401         f = TRUE;
1402     else
1403         f = FALSE;
1404
1405     if (self->iconic) l = Layer_Icon;
1406     /* fullscreen windows are only in the fullscreen layer while focused */
1407     else if (self->fullscreen && f) l = Layer_Fullscreen;
1408     else if (self->type == Type_Desktop) l = Layer_Desktop;
1409     else if (self->type == Type_Dock) {
1410         if (!self->below) l = Layer_Top;
1411         else l = Layer_Normal;
1412     }
1413     else if (self->above) l = Layer_Above;
1414     else if (self->below) l = Layer_Below;
1415     else l = Layer_Normal;
1416
1417     calc_recursive(self, l, FALSE);
1418 }
1419
1420 gboolean client_should_show(Client *self)
1421 {
1422     if (self->iconic) return FALSE;
1423     else if (!(self->desktop == screen_desktop ||
1424                self->desktop == DESKTOP_ALL)) return FALSE;
1425     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1426
1427     return TRUE;
1428 }
1429
1430 static void client_showhide(Client *self)
1431 {
1432
1433     if (client_should_show(self))
1434         frame_show(self->frame);
1435     else
1436         frame_hide(self->frame);
1437 }
1438
1439 gboolean client_normal(Client *self) {
1440     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1441               self->type == Type_Splash);
1442 }
1443
1444 static void client_apply_startup_state(Client *self)
1445 {
1446     /* these are in a carefully crafted order.. */
1447
1448     if (self->iconic) {
1449         self->iconic = FALSE;
1450         client_iconify(self, TRUE, FALSE);
1451     }
1452     if (self->fullscreen) {
1453         self->fullscreen = FALSE;
1454         client_fullscreen(self, TRUE, FALSE);
1455     }
1456     if (self->shaded) {
1457         self->shaded = FALSE;
1458         client_shade(self, TRUE);
1459     }
1460     if (self->urgent)
1461         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1462
1463     if (self->max_vert && self->max_horz) {
1464         self->max_vert = self->max_horz = FALSE;
1465         client_maximize(self, TRUE, 0, FALSE);
1466     } else if (self->max_vert) {
1467         self->max_vert = FALSE;
1468         client_maximize(self, TRUE, 2, FALSE);
1469     } else if (self->max_horz) {
1470         self->max_horz = FALSE;
1471         client_maximize(self, TRUE, 1, FALSE);
1472     }
1473
1474     /* nothing to do for the other states:
1475        skip_taskbar
1476        skip_pager
1477        modal
1478        above
1479        below
1480     */
1481 }
1482
1483 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1484                       gboolean user, gboolean final)
1485 {
1486     gboolean moved = FALSE, resized = FALSE;
1487
1488     /* gets the frame's position */
1489     frame_client_gravity(self->frame, &x, &y);
1490
1491     /* these positions are frame positions, not client positions */
1492
1493     /* set the size and position if fullscreen */
1494     if (self->fullscreen) {
1495         x = 0;
1496         y = 0;
1497         w = screen_physical_size.width;
1498         h = screen_physical_size.height;
1499         user = FALSE; /* ignore that increment etc shit when in fullscreen */
1500     } else {
1501         /* set the size and position if maximized */
1502         if (self->max_horz) {
1503             x = screen_area(self->desktop)->x - self->frame->size.left;
1504             w = screen_area(self->desktop)->width;
1505         }
1506         if (self->max_vert) {
1507             y = screen_area(self->desktop)->y;
1508             h = screen_area(self->desktop)->height -
1509                 self->frame->size.top - self->frame->size.bottom;
1510         }
1511     }
1512
1513     /* gets the client's position */
1514     frame_frame_gravity(self->frame, &x, &y);
1515
1516     /* these override the above states! if you cant move you can't move! */
1517     if (user) {
1518         if (!(self->functions & Func_Move)) {
1519             x = self->area.x;
1520             y = self->area.y;
1521         }
1522         if (!(self->functions & Func_Resize)) {
1523             w = self->area.width;
1524             h = self->area.height;
1525         }
1526     }
1527
1528     if (!(w == self->area.width && h == self->area.height)) {
1529         w -= self->base_size.width;
1530         h -= self->base_size.height;
1531
1532         if (user) {
1533             /* for interactive resizing. have to move half an increment in each
1534                direction. */
1535
1536             /* how far we are towards the next size inc */
1537             int mw = w % self->size_inc.width;
1538             int mh = h % self->size_inc.height;
1539             /* amount to add */
1540             int aw = self->size_inc.width / 2;
1541             int ah = self->size_inc.height / 2;
1542             /* don't let us move into a new size increment */
1543             if (mw + aw >= self->size_inc.width)
1544                 aw = self->size_inc.width - mw - 1;
1545             if (mh + ah >= self->size_inc.height)
1546                 ah = self->size_inc.height - mh - 1;
1547             w += aw;
1548             h += ah;
1549
1550             /* if this is a user-requested resize, then check against min/max
1551                sizes and aspect ratios */
1552
1553             /* smaller than min size or bigger than max size? */
1554             if (w > self->max_size.width) w = self->max_size.width;
1555             if (w < self->min_size.width) w = self->min_size.width;
1556             if (h > self->max_size.height) h = self->max_size.height;
1557             if (h < self->min_size.height) h = self->min_size.height;
1558
1559             /* adjust the height ot match the width for the aspect ratios */
1560             if (self->min_ratio)
1561                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1562             if (self->max_ratio)
1563                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1564         }
1565
1566         /* keep to the increments */
1567         w /= self->size_inc.width;
1568         h /= self->size_inc.height;
1569
1570         /* you cannot resize to nothing */
1571         if (w < 1) w = 1;
1572         if (h < 1) h = 1;
1573
1574         /* store the logical size */
1575         SIZE_SET(self->logical_size, w, h);
1576
1577         w *= self->size_inc.width;
1578         h *= self->size_inc.height;
1579
1580         w += self->base_size.width;
1581         h += self->base_size.height;
1582     }
1583
1584     switch (anchor) {
1585     case Corner_TopLeft:
1586         break;
1587     case Corner_TopRight:
1588         x -= w - self->area.width;
1589         break;
1590     case Corner_BottomLeft:
1591         y -= h - self->area.height;
1592         break;
1593     case Corner_BottomRight:
1594         x -= w - self->area.width;
1595         y -= h - self->area.height;
1596         break;
1597     }
1598
1599     moved = x != self->area.x || y != self->area.y;
1600     resized = w != self->area.width || h != self->area.height;
1601
1602     RECT_SET(self->area, x, y, w, h);
1603
1604     if (resized)
1605         XResizeWindow(ob_display, self->window, w, h);
1606
1607     /* move/resize the frame to match the request */
1608     if (self->frame) {
1609         if (moved || resized)
1610             frame_adjust_area(self->frame, moved, resized);
1611
1612         if (!user || final) {
1613             XEvent event;
1614             event.type = ConfigureNotify;
1615             event.xconfigure.display = ob_display;
1616             event.xconfigure.event = self->window;
1617             event.xconfigure.window = self->window;
1618
1619             /* root window coords with border in mind */
1620             event.xconfigure.x = x - self->border_width +
1621                 self->frame->size.left;
1622             event.xconfigure.y = y - self->border_width +
1623                 self->frame->size.top;
1624
1625             event.xconfigure.width = self->area.width;
1626             event.xconfigure.height = self->area.height;
1627             event.xconfigure.border_width = self->border_width;
1628             event.xconfigure.above = self->frame->plate;
1629             event.xconfigure.override_redirect = FALSE;
1630             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1631                        FALSE, StructureNotifyMask, &event);
1632         }
1633     }
1634 }
1635
1636 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1637 {
1638     int x, y, w, h;
1639
1640     if (!(self->functions & Func_Fullscreen) || /* can't */
1641         self->fullscreen == fs) return;         /* already done */
1642
1643     self->fullscreen = fs;
1644     client_change_state(self); /* change the state hints on the client,
1645                                   and adjust out layer/stacking */
1646
1647     if (fs) {
1648         if (savearea) {
1649             guint32 dimensions[4];
1650             dimensions[0] = self->area.x;
1651             dimensions[1] = self->area.y;
1652             dimensions[2] = self->area.width;
1653             dimensions[3] = self->area.height;
1654
1655             PROP_SETA32(self->window, openbox_premax, cardinal,
1656                         dimensions, 4);
1657         }
1658
1659         /* these are not actually used cuz client_configure will set them
1660            as appropriate when the window is fullscreened */
1661         x = y = w = h = 0;
1662     } else {
1663         guint num;
1664         gint32 *dimensions;
1665
1666         /* pick some fallbacks... */
1667         x = screen_area(self->desktop)->x +
1668             screen_area(self->desktop)->width / 4;
1669         y = screen_area(self->desktop)->y +
1670             screen_area(self->desktop)->height / 4;
1671         w = screen_area(self->desktop)->width / 2;
1672         h = screen_area(self->desktop)->height / 2;
1673
1674         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1675                         (guint32**)&dimensions, &num)) {
1676             if (num == 4) {
1677                 x = dimensions[0];
1678                 y = dimensions[1];
1679                 w = dimensions[2];
1680                 h = dimensions[3];
1681             }
1682             g_free(dimensions);
1683         }
1684     }
1685
1686     client_setup_decor_and_functions(self);
1687
1688     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1689
1690     /* try focus us when we go into fullscreen mode */
1691     client_focus(self);
1692 }
1693
1694 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1695 {
1696     GSList *it;
1697
1698     /* move up the transient chain as far as possible first if deiconifying */
1699     if (!iconic)
1700         while (self->transient_for) {
1701             if (self->transient_for != TRAN_GROUP) {
1702                 if (self->transient_for->iconic == iconic)
1703                     break;
1704                 self = self->transient_for;
1705             } else {
1706                 GSList *it;
1707
1708                 /* the check for TRAN_GROUP is to prevent an infinate loop with
1709                    2 transients of the same group at the head of the group's
1710                    members list */
1711                 for (it = self->group->members; it; it = it->next) {
1712                     Client *c = it->data;
1713
1714                     if (c != self && c->transient_for->iconic != iconic &&
1715                         c->transient_for != TRAN_GROUP) {
1716                         self = it->data;
1717                         break;
1718                     }
1719                 }
1720                 if (it == NULL) break;
1721             }
1722         }
1723
1724     if (self->iconic == iconic) return; /* nothing to do */
1725
1726     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1727               self->window);
1728
1729     self->iconic = iconic;
1730
1731     if (iconic) {
1732         self->wmstate = IconicState;
1733         self->ignore_unmaps++;
1734         /* we unmap the client itself so that we can get MapRequest events,
1735            and because the ICCCM tells us to! */
1736         XUnmapWindow(ob_display, self->window);
1737     } else {
1738         if (curdesk)
1739             client_set_desktop(self, screen_desktop, FALSE);
1740         self->wmstate = self->shaded ? IconicState : NormalState;
1741         XMapWindow(ob_display, self->window);
1742     }
1743     client_change_state(self);
1744     client_showhide(self);
1745     screen_update_struts();
1746
1747     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1748                     self, 0, 0);
1749
1750     /* iconify all transients */
1751     for (it = self->transients; it != NULL; it = it->next)
1752         if (it->data != self) client_iconify(it->data, iconic, curdesk);
1753 }
1754
1755 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1756 {
1757     int x, y, w, h;
1758
1759     g_assert(dir == 0 || dir == 1 || dir == 2);
1760     if (!(self->functions & Func_Maximize)) return; /* can't */
1761
1762     /* check if already done */
1763     if (max) {
1764         if (dir == 0 && self->max_horz && self->max_vert) return;
1765         if (dir == 1 && self->max_horz) return;
1766         if (dir == 2 && self->max_vert) return;
1767     } else {
1768         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1769         if (dir == 1 && !self->max_horz) return;
1770         if (dir == 2 && !self->max_vert) return;
1771     }
1772
1773     /* work with the frame's coords */
1774     x = self->frame->area.x;
1775     y = self->frame->area.y;
1776     w = self->area.width;
1777     h = self->area.height;
1778
1779     if (max) {
1780         if (savearea) {
1781             gint32 dimensions[4];
1782             gint32 *readdim;
1783             guint num;
1784
1785             dimensions[0] = x;
1786             dimensions[1] = y;
1787             dimensions[2] = w;
1788             dimensions[3] = h;
1789
1790             /* get the property off the window and use it for the dimensions
1791                we are already maxed on */
1792             if (PROP_GETA32(self->window, openbox_premax, cardinal,
1793                             (guint32**)&readdim, &num)) {
1794                 if (num == 4) {
1795                     if (self->max_horz) {
1796                         dimensions[0] = readdim[0];
1797                         dimensions[2] = readdim[2];
1798                     }
1799                     if (self->max_vert) {
1800                         dimensions[1] = readdim[1];
1801                         dimensions[3] = readdim[3];
1802                     }
1803                 }
1804                 g_free(readdim);
1805             }
1806
1807             PROP_SETA32(self->window, openbox_premax, cardinal,
1808                         (guint32*)dimensions, 4);
1809         }
1810     } else {
1811         guint num;
1812         gint32 *dimensions;
1813
1814         /* pick some fallbacks... */
1815         if (dir == 0 || dir == 1) { /* horz */
1816             x = screen_area(self->desktop)->x +
1817                 screen_area(self->desktop)->width / 4;
1818             w = screen_area(self->desktop)->width / 2;
1819         }
1820         if (dir == 0 || dir == 2) { /* vert */
1821             y = screen_area(self->desktop)->y +
1822                 screen_area(self->desktop)->height / 4;
1823             h = screen_area(self->desktop)->height / 2;
1824         }
1825
1826         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1827                         (guint32**)&dimensions, &num)) {
1828             if (num == 4) {
1829                 if (dir == 0 || dir == 1) { /* horz */
1830                     x = dimensions[0];
1831                     w = dimensions[2];
1832                 }
1833                 if (dir == 0 || dir == 2) { /* vert */
1834                     y = dimensions[1];
1835                     h = dimensions[3];
1836                 }
1837             }
1838             g_free(dimensions);
1839         }
1840     }
1841
1842     if (dir == 0 || dir == 1) /* horz */
1843         self->max_horz = max;
1844     if (dir == 0 || dir == 2) /* vert */
1845         self->max_vert = max;
1846
1847     if (!self->max_horz && !self->max_vert)
1848         PROP_ERASE(self->window, openbox_premax);
1849
1850     client_change_state(self); /* change the state hints on the client */
1851
1852     /* figure out where the client should be going */
1853     frame_frame_gravity(self->frame, &x, &y);
1854     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1855 }
1856
1857 void client_shade(Client *self, gboolean shade)
1858 {
1859     if ((!(self->functions & Func_Shade) && shade) || /* can't shade */
1860         self->shaded == shade) return;     /* already done */
1861
1862     /* when we're iconic, don't change the wmstate */
1863     if (!self->iconic)
1864         self->wmstate = shade ? IconicState : NormalState;
1865     self->shaded = shade;
1866     client_change_state(self);
1867     /* resize the frame to just the titlebar */
1868     frame_adjust_area(self->frame, FALSE, FALSE);
1869 }
1870
1871 void client_close(Client *self)
1872 {
1873     XEvent ce;
1874
1875     if (!(self->functions & Func_Close)) return;
1876
1877     /*
1878       XXX: itd be cool to do timeouts and shit here for killing the client's
1879       process off
1880       like... if the window is around after 5 seconds, then the close button
1881       turns a nice red, and if this function is called again, the client is
1882       explicitly killed.
1883     */
1884
1885     ce.xclient.type = ClientMessage;
1886     ce.xclient.message_type =  prop_atoms.wm_protocols;
1887     ce.xclient.display = ob_display;
1888     ce.xclient.window = self->window;
1889     ce.xclient.format = 32;
1890     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
1891     ce.xclient.data.l[1] = event_lasttime;
1892     ce.xclient.data.l[2] = 0l;
1893     ce.xclient.data.l[3] = 0l;
1894     ce.xclient.data.l[4] = 0l;
1895     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1896 }
1897
1898 void client_kill(Client *self)
1899 {
1900     XKillClient(ob_display, self->window);
1901 }
1902
1903 void client_set_desktop(Client *self, guint target, gboolean donthide)
1904 {
1905     guint old, i;
1906
1907     if (target == self->desktop) return;
1908
1909     g_message("Setting desktop %u", target);
1910
1911     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
1912
1913     old = self->desktop;
1914     self->desktop = target;
1915     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
1916     /* the frame can display the current desktop state */
1917     frame_adjust_state(self->frame);
1918     /* 'move' the window to the new desktop */
1919     if (!donthide)
1920         client_showhide(self);
1921     /* raise if it was not already on the desktop */
1922     if (old != DESKTOP_ALL)
1923         stacking_raise(self);
1924     screen_update_struts();
1925
1926     /* update the focus lists */
1927     if (old == DESKTOP_ALL) {
1928         for (i = 0; i < screen_num_desktops; ++i)
1929             focus_order[i] = g_list_remove(focus_order[i], self);
1930     } else
1931         focus_order[old] = g_list_remove(focus_order[old], self);
1932     if (target == DESKTOP_ALL) {
1933         for (i = 0; i < screen_num_desktops; ++i) {
1934             if (config_focus_new)
1935                 focus_order[i] = g_list_prepend(focus_order[i], self);
1936             else
1937                 focus_order[i] = g_list_append(focus_order[i], self);
1938         }
1939     } else {
1940         if (config_focus_new)
1941             focus_order[target] = g_list_prepend(focus_order[target], self);
1942         else
1943             focus_order[target] = g_list_append(focus_order[target], self);
1944     }
1945
1946     dispatch_client(Event_Client_Desktop, self, target, old);
1947 }
1948
1949 static Client *search_modal_tree(Client *node, Client *skip)
1950 {
1951     GSList *it;
1952     Client *ret;
1953
1954     for (it = node->transients; it != NULL; it = it->next) {
1955         Client *c = it->data;
1956         if (c == skip) continue; /* circular? */
1957         if ((ret = search_modal_tree(c, skip))) return ret;
1958         if (c->modal) return c;
1959     }
1960     return NULL;
1961 }
1962
1963 Client *client_find_modal_child(Client *self)
1964 {
1965     return search_modal_tree(self, self);
1966 }
1967
1968 gboolean client_validate(Client *self)
1969 {
1970     XEvent e;
1971
1972     XSync(ob_display, FALSE); /* get all events on the server */
1973
1974     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
1975         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
1976         XPutBackEvent(ob_display, &e);
1977         return FALSE;
1978     }
1979
1980     return TRUE;
1981 }
1982
1983 void client_set_wm_state(Client *self, long state)
1984 {
1985     if (state == self->wmstate) return; /* no change */
1986
1987     switch (state) {
1988     case IconicState:
1989         client_iconify(self, TRUE, TRUE);
1990         break;
1991     case NormalState:
1992         client_iconify(self, FALSE, TRUE);
1993         break;
1994     }
1995 }
1996
1997 void client_set_state(Client *self, Atom action, long data1, long data2)
1998 {
1999     gboolean shaded = self->shaded;
2000     gboolean fullscreen = self->fullscreen;
2001     gboolean max_horz = self->max_horz;
2002     gboolean max_vert = self->max_vert;
2003     int i;
2004
2005     if (!(action == prop_atoms.net_wm_state_add ||
2006           action == prop_atoms.net_wm_state_remove ||
2007           action == prop_atoms.net_wm_state_toggle))
2008         /* an invalid action was passed to the client message, ignore it */
2009         return;
2010
2011     for (i = 0; i < 2; ++i) {
2012         Atom state = i == 0 ? data1 : data2;
2013
2014         if (!state) continue;
2015
2016         /* if toggling, then pick whether we're adding or removing */
2017         if (action == prop_atoms.net_wm_state_toggle) {
2018             if (state == prop_atoms.net_wm_state_modal)
2019                 action = self->modal ? prop_atoms.net_wm_state_remove :
2020                     prop_atoms.net_wm_state_add;
2021             else if (state == prop_atoms.net_wm_state_maximized_vert)
2022                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
2023                     prop_atoms.net_wm_state_add;
2024             else if (state == prop_atoms.net_wm_state_maximized_horz)
2025                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
2026                     prop_atoms.net_wm_state_add;
2027             else if (state == prop_atoms.net_wm_state_shaded)
2028                 action = self->shaded ? prop_atoms.net_wm_state_remove :
2029                     prop_atoms.net_wm_state_add;
2030             else if (state == prop_atoms.net_wm_state_skip_taskbar)
2031                 action = self->skip_taskbar ?
2032                     prop_atoms.net_wm_state_remove :
2033                     prop_atoms.net_wm_state_add;
2034             else if (state == prop_atoms.net_wm_state_skip_pager)
2035                 action = self->skip_pager ?
2036                     prop_atoms.net_wm_state_remove :
2037                     prop_atoms.net_wm_state_add;
2038             else if (state == prop_atoms.net_wm_state_fullscreen)
2039                 action = self->fullscreen ?
2040                     prop_atoms.net_wm_state_remove :
2041                     prop_atoms.net_wm_state_add;
2042             else if (state == prop_atoms.net_wm_state_above)
2043                 action = self->above ? prop_atoms.net_wm_state_remove :
2044                     prop_atoms.net_wm_state_add;
2045             else if (state == prop_atoms.net_wm_state_below)
2046                 action = self->below ? prop_atoms.net_wm_state_remove :
2047                     prop_atoms.net_wm_state_add;
2048         }
2049
2050         if (action == prop_atoms.net_wm_state_add) {
2051             if (state == prop_atoms.net_wm_state_modal) {
2052                 /* XXX raise here or something? */
2053                 self->modal = TRUE;
2054             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2055                 max_vert = TRUE;
2056             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2057                 max_horz = TRUE;
2058             } else if (state == prop_atoms.net_wm_state_shaded) {
2059                 shaded = TRUE;
2060             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2061                 self->skip_taskbar = TRUE;
2062             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2063                 self->skip_pager = TRUE;
2064             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2065                 fullscreen = TRUE;
2066             } else if (state == prop_atoms.net_wm_state_above) {
2067                 self->above = TRUE;
2068             } else if (state == prop_atoms.net_wm_state_below) {
2069                 self->below = TRUE;
2070             }
2071
2072         } else { /* action == prop_atoms.net_wm_state_remove */
2073             if (state == prop_atoms.net_wm_state_modal) {
2074                 self->modal = FALSE;
2075             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2076                 max_vert = FALSE;
2077             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2078                 max_horz = FALSE;
2079             } else if (state == prop_atoms.net_wm_state_shaded) {
2080                 shaded = FALSE;
2081             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2082                 self->skip_taskbar = FALSE;
2083             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2084                 self->skip_pager = FALSE;
2085             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2086                 fullscreen = FALSE;
2087             } else if (state == prop_atoms.net_wm_state_above) {
2088                 self->above = FALSE;
2089             } else if (state == prop_atoms.net_wm_state_below) {
2090                 self->below = FALSE;
2091             }
2092         }
2093     }
2094     if (max_horz != self->max_horz || max_vert != self->max_vert) {
2095         if (max_horz != self->max_horz && max_vert != self->max_vert) {
2096             /* toggling both */
2097             if (max_horz == max_vert) { /* both going the same way */
2098                 client_maximize(self, max_horz, 0, TRUE);
2099             } else {
2100                 client_maximize(self, max_horz, 1, TRUE);
2101                 client_maximize(self, max_vert, 2, TRUE);
2102             }
2103         } else {
2104             /* toggling one */
2105             if (max_horz != self->max_horz)
2106                 client_maximize(self, max_horz, 1, TRUE);
2107             else
2108                 client_maximize(self, max_vert, 2, TRUE);
2109         }
2110     }
2111     /* change fullscreen state before shading, as it will affect if the window
2112        can shade or not */
2113     if (fullscreen != self->fullscreen)
2114         client_fullscreen(self, fullscreen, TRUE);
2115     if (shaded != self->shaded)
2116         client_shade(self, shaded);
2117     client_calc_layer(self);
2118     client_change_state(self); /* change the hint to relect these changes */
2119 }
2120
2121 Client *client_focus_target(Client *self)
2122 {
2123     Client *child;
2124
2125     /* if we have a modal child, then focus it, not us */
2126     child = client_find_modal_child(self);
2127     if (child) return child;
2128     return self;
2129 }
2130
2131 gboolean client_focusable(Client *self)
2132 {
2133     /* won't try focus if the client doesn't want it, or if the window isn't
2134        visible on the screen */
2135     return self->frame->visible &&
2136         (self->can_focus || self->focus_notify);
2137 }
2138
2139 gboolean client_focus(Client *self)
2140 {
2141     XEvent ev;
2142     guint i;
2143
2144     /* choose the correct target */
2145     self = client_focus_target(self);
2146
2147     if (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop) {
2148         /* update the focus lists */
2149         if (self->desktop == DESKTOP_ALL) {
2150             for (i = 0; i < screen_num_desktops; ++i) {
2151                 focus_order[i] = g_list_remove(focus_order[i], self);
2152                 focus_order[i] = g_list_prepend(focus_order[i], self);
2153             }
2154         } else {
2155             i = self->desktop;
2156             focus_order[i] = g_list_remove(focus_order[i], self);
2157             focus_order[i] = g_list_prepend(focus_order[i], self);
2158         }
2159         return FALSE;
2160     }
2161
2162     if (!client_focusable(self))
2163         return FALSE;
2164
2165     /* do a check to see if the window has already been unmapped or destroyed
2166        do this intelligently while watching out for unmaps we've generated
2167        (ignore_unmaps > 0) */
2168     if (XCheckTypedWindowEvent(ob_display, self->window,
2169                                DestroyNotify, &ev)) {
2170         XPutBackEvent(ob_display, &ev);
2171         return FALSE;
2172     }
2173     while (XCheckTypedWindowEvent(ob_display, self->window,
2174                                   UnmapNotify, &ev)) {
2175         if (self->ignore_unmaps) {
2176             self->ignore_unmaps--;
2177         } else {
2178             XPutBackEvent(ob_display, &ev);
2179             return FALSE;
2180         }
2181     }
2182
2183     if (self->can_focus)
2184         /* RevertToPointerRoot causes much more headache than RevertToNone, so
2185            I choose to use it always, hopefully to find errors quicker, if any
2186            are left. (I hate X. I hate focus events.) */
2187         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
2188                        event_lasttime);
2189
2190     if (self->focus_notify) {
2191         XEvent ce;
2192         ce.xclient.type = ClientMessage;
2193         ce.xclient.message_type = prop_atoms.wm_protocols;
2194         ce.xclient.display = ob_display;
2195         ce.xclient.window = self->window;
2196         ce.xclient.format = 32;
2197         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
2198         ce.xclient.data.l[1] = event_lasttime;
2199         ce.xclient.data.l[2] = 0l;
2200         ce.xclient.data.l[3] = 0l;
2201         ce.xclient.data.l[4] = 0l;
2202         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2203     }
2204
2205 #ifdef DEBUG_FOCUS
2206     g_message("%sively focusing %lx at %d", (self->can_focus ? "act" : "pass"),
2207               self->window, (int)
2208               event_lasttime);
2209 #endif
2210
2211     /* Cause the FocusIn to come back to us. Important for desktop switches,
2212        since otherwise we'll have no FocusIn on the queue and send it off to
2213        the focus_backup. */
2214     XSync(ob_display, FALSE);
2215     return TRUE;
2216 }
2217
2218 void client_unfocus(Client *self)
2219 {
2220     g_assert(focus_client == self);
2221 #ifdef DEBUG_FOCUS
2222     g_message("client_unfocus for %lx", self->window);
2223 #endif
2224     focus_fallback(Fallback_Unfocusing);
2225 }
2226
2227 gboolean client_focused(Client *self)
2228 {
2229     return self == focus_client;
2230 }
2231
2232 Icon *client_icon(Client *self, int w, int h)
2233 {
2234     int i;
2235     /* si is the smallest image >= req */
2236     /* li is the largest image < req */
2237     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
2238
2239     if (!self->nicons) return NULL;
2240
2241     for (i = 0; i < self->nicons; ++i) {
2242         size = self->icons[i].width * self->icons[i].height;
2243         if (size < smallest && size >= (unsigned)(w * h)) {
2244             smallest = size;
2245             si = i;
2246         }
2247         if (size > largest && size <= (unsigned)(w * h)) {
2248             largest = size;
2249             li = i;
2250         }
2251     }
2252     if (largest == 0) /* didnt find one smaller than the requested size */
2253         return &self->icons[si];
2254     return &self->icons[li];
2255 }