openbox/client.c

   1 #include "client.h"
   2 #include "dock.h"
   3 #include "xerror.h"
   4 #include "startup.h"
   5 #include "screen.h"
   6 #include "moveresize.h"
   7 #include "prop.h"
   8 #include "extensions.h"
   9 #include "frame.h"
  10 #include "event.h"
  11 #include "grab.h"
  12 #include "focus.h"
  13 #include "stacking.h"
  14 #include "dispatch.h"
  15 #include "openbox.h"
  16 #include "group.h"
  17 #include "config.h"
  18 #include "menu.h"
  19 #include "render/render.h"
  20
  21 #include <glib.h>
  22 #include <X11/Xutil.h>
  23
  24 /*! The event mask to grab on client windows */
  25 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
  26                           StructureNotifyMask)
  27
  28 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  29                                 ButtonMotionMask)
  30
  31 GList      *client_list      = NULL;
  32
  33 static void client_get_all(Client *self);
  34 static void client_toggle_border(Client *self, gboolean show);
  35 static void client_get_area(Client *self);
  36 static void client_get_desktop(Client *self);
  37 static void client_get_state(Client *self);
  38 static void client_get_shaped(Client *self);
  39 static void client_get_mwm_hints(Client *self);
  40 static void client_get_gravity(Client *self);
  41 static void client_showhide(Client *self);
  42 static void client_change_allowed_actions(Client *self);
  43 static void client_change_state(Client *self);
  44 static void client_apply_startup_state(Client *self);
  45
  46 void client_startup()
  47 {
  48     client_set_list();
  49 }
  50
  51 void client_shutdown()
  52 {
  53 }
  54
  55 void client_set_list()
  56 {
  57     Window *windows, *win_it;
  58     GList *it;
  59     guint size = g_list_length(client_list);
  60
  61     /* create an array of the window ids */
  62     if (size > 0) {
  63         windows = g_new(Window, size);
  64         win_it = windows;
  65         for (it = client_list; it != NULL; it = it->next, ++win_it)
  66             *win_it = ((Client*)it->data)->window;
  67     } else
  68         windows = NULL;
  69
  70     PROP_SETA32(ob_root, net_client_list, window, (guint32*)windows, size);
  71
  72     if (windows)
  73         g_free(windows);
  74
  75     stacking_set_list();
  76 }
  77
  78 /*
  79 void client_foreach_transient(Client *self, ClientForeachFunc func, void *data)
  80 {
  81     GSList *it;
  82
  83     for (it = self->transients; it; it = it->next) {
  84         if (!func(it->data, data)) return;
  85         client_foreach_transient(it->data, func, data);
  86     }
  87 }
  88
  89 void client_foreach_ancestor(Client *self, ClientForeachFunc func, void *data)
  90 {
  91     if (self->transient_for) {
  92         if (self->transient_for != TRAN_GROUP) {
  93             if (!func(self->transient_for, data)) return;
  94             client_foreach_ancestor(self->transient_for, func, data);
  95         } else {
  96             GSList *it;
  97
  98             for (it = self->group->members; it; it = it->next)
  99                 if (it->data != self &&
 100                     !((Client*)it->data)->transient_for) {
 101                     if (!func(it->data, data)) return;
 102                     client_foreach_ancestor(it->data, func, data);
 103                 }
 104         }
 105     }
 106 }
 107 */
 108
 109 void client_manage_all()
 110 {
 111     unsigned int i, j, nchild;
 112     Window w, *children;
 113     XWMHints *wmhints;
 114     XWindowAttributes attrib;
 115
 116     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
 117
 118     /* remove all icon windows from the list */
 119     for (i = 0; i < nchild; i++) {
 120         if (children[i] == None) continue;
 121         wmhints = XGetWMHints(ob_display, children[i]);
 122         if (wmhints) {
 123             if ((wmhints->flags & IconWindowHint) &&
 124                 (wmhints->icon_window != children[i]))
 125                 for (j = 0; j < nchild; j++)
 126                     if (children[j] == wmhints->icon_window) {
 127                         children[j] = None;
 128                         break;
 129                     }
 130             XFree(wmhints);
 131         }
 132     }
 133
 134     for (i = 0; i < nchild; ++i) {
 135         if (children[i] == None)
 136             continue;
 137         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 138             if (attrib.override_redirect) continue;
 139
 140             if (attrib.map_state != IsUnmapped)
 141                 client_manage(children[i]);
 142         }
 143     }
 144     XFree(children);
 145
 146     /* stack them as they were on startup!
 147        why with stacking_lower? Why, because then windows who aren't in the
 148        stacking list are on the top where you can see them instead of buried
 149        at the bottom! */
 150     for (i = startup_stack_size; i > 0; --i) {
 151         ObWindow *obw;
 152
 153         w = startup_stack_order[i-1];
 154         obw = g_hash_table_lookup(window_map, &w);
 155         if (obw) {
 156             g_assert(WINDOW_IS_CLIENT(obw));
 157             stacking_lower(CLIENT_AS_WINDOW(obw));
 158         }
 159     }
 160     g_free(startup_stack_order);
 161     startup_stack_order = NULL;
 162     startup_stack_size = 0;
 163
 164     if (config_focus_new) {
 165         ObWindow *active;
 166
 167         active = g_hash_table_lookup(window_map, &startup_active);
 168         if (active) {
 169             g_assert(WINDOW_IS_CLIENT(active));
 170             if (!client_focus(WINDOW_AS_CLIENT(active)))
 171                 focus_fallback(Fallback_NoFocus);
 172         } else
 173             focus_fallback(Fallback_NoFocus);
 174     }
 175 }
 176
 177 void client_manage(Window window)
 178 {
 179     Client *self;
 180     XEvent e;
 181     XWindowAttributes attrib;
 182     XSetWindowAttributes attrib_set;
 183     XWMHints *wmhint;
 184     gboolean activate = FALSE;
 185
 186     grab_server(TRUE);
 187
 188     /* check if it has already been unmapped by the time we started mapping
 189        the grab does a sync so we don't have to here */
 190     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 191         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
 192         XPutBackEvent(ob_display, &e);
 193
 194         grab_server(FALSE);
 195         return; /* don't manage it */
 196     }
 197
 198     /* make sure it isn't an override-redirect window */
 199     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 200         attrib.override_redirect) {
 201         grab_server(FALSE);
 202         return; /* don't manage it */
 203     }
 204
 205     /* is the window a docking app */
 206     if ((wmhint = XGetWMHints(ob_display, window))) {
 207         if ((wmhint->flags & StateHint) &&
 208             wmhint->initial_state == WithdrawnState) {
 209             dock_add(window, wmhint);
 210             grab_server(FALSE);
 211             XFree(wmhint);
 212             return;
 213         }
 214         XFree(wmhint);
 215     }
 216
 217     g_message("Managing window: %lx", window);
 218
 219     /* choose the events we want to receive on the CLIENT window */
 220     attrib_set.event_mask = CLIENT_EVENTMASK;
 221     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 222     XChangeWindowAttributes(ob_display, window,
 223                             CWEventMask|CWDontPropagate, &attrib_set);
 224
 225
 226     /* create the Client struct, and populate it from the hints on the
 227        window */
 228     self = g_new(Client, 1);
 229     self->obwin.type = Window_Client;
 230     self->window = window;
 231     client_get_all(self);
 232
 233     /* remove the client's border (and adjust re gravity) */
 234     client_toggle_border(self, FALSE);
 235
 236     /* specify that if we exit, the window should not be destroyed and should
 237        be reparented back to root automatically */
 238     XChangeSaveSet(ob_display, window, SetModeInsert);
 239
 240     /* create the decoration frame for the client window */
 241     self->frame = frame_new();
 242
 243     frame_grab_client(self->frame, self);
 244
 245     client_apply_startup_state(self);
 246
 247     grab_server(FALSE);
 248
 249     /* add to client list/map */
 250     client_list = g_list_append(client_list, self);
 251     g_hash_table_insert(window_map, &self->window, self);
 252
 253     /* update the focus lists */
 254     focus_order_add_new(self);
 255
 256     /* focus the new window? */
 257     if (ob_state != State_Starting && config_focus_new &&
 258         (self->type == Type_Normal || self->type == Type_Dialog)) {
 259         gboolean group_foc = FALSE;
 260
 261         if (self->group) {
 262             GSList *it;
 263
 264             for (it = self->group->members; it; it = it->next) {
 265                 if (client_focused(it->data)) {
 266                     group_foc = TRUE;
 267                     break;
 268                 }
 269             }
 270         }
 271         /* note the check against Type_Normal/Dialog, not client_normal(self),
 272            which would also include other types. in this case we want more
 273            strict rules for focus */
 274         if ((group_foc ||
 275              (!self->transient_for && (!self->group ||
 276                                        !self->group->members->next))) ||
 277             client_search_focus_tree_full(self) ||
 278             !focus_client ||
 279             !client_normal(focus_client)) {
 280             /* activate the window */
 281             stacking_add(CLIENT_AS_WINDOW(self));
 282             activate = TRUE;
 283         } else {
 284             /* try to not get in the way */
 285             stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
 286         }
 287     } else {
 288         stacking_add(CLIENT_AS_WINDOW(self));
 289     }
 290
 291     screen_update_struts();
 292
 293     /* make sure the window is visible */
 294     client_move_onscreen(self);
 295
 296     dispatch_client(Event_Client_New, self, 0, 0);
 297
 298     client_showhide(self);
 299
 300     if (activate) client_activate(self);
 301
 302     /* update the list hints */
 303     client_set_list();
 304
 305     dispatch_client(Event_Client_Mapped, self, 0, 0);
 306
 307     g_message("Managed window 0x%lx (%s)", window, self->class);
 308 }
 309
 310 void client_unmanage_all()
 311 {
 312     while (client_list != NULL)
 313         client_unmanage(client_list->data);
 314 }
 315
 316 /* called by client_unmanage() to close any menus referencing this client */
 317 void client_close_menus(gpointer key, gpointer value, gpointer self)
 318 {
 319     if (((Menu *)value)->client == (Client *)self)
 320         menu_hide((Menu *)value);
 321 }
 322
 323 void client_unmanage(Client *self)
 324 {
 325     int j;
 326     GSList *it;
 327
 328     g_message("Unmanaging window: %lx (%s)", self->window, self->class);
 329
 330     dispatch_client(Event_Client_Destroy, self, 0, 0);
 331     g_assert(self != NULL);
 332
 333     /* remove the window from our save set */
 334     XChangeSaveSet(ob_display, self->window, SetModeDelete);
 335
 336     /* we dont want events no more */
 337     XSelectInput(ob_display, self->window, NoEventMask);
 338
 339     frame_hide(self->frame);
 340
 341     client_list = g_list_remove(client_list, self);
 342     stacking_remove(self);
 343     g_hash_table_remove(window_map, &self->window);
 344
 345     /* update the focus lists */
 346     focus_order_remove(self);
 347
 348     /* once the client is out of the list, update the struts to remove it's
 349        influence */
 350     screen_update_struts();
 351
 352     /* tell our parent(s) that we're gone */
 353     if (self->transient_for == TRAN_GROUP) { /* transient of group */
 354         GSList *it;
 355
 356         for (it = self->group->members; it; it = it->next)
 357             if (it->data != self)
 358                 ((Client*)it->data)->transients =
 359                     g_slist_remove(((Client*)it->data)->transients, self);
 360     } else if (self->transient_for) {        /* transient of window */
 361         self->transient_for->transients =
 362             g_slist_remove(self->transient_for->transients, self);
 363     }
 364
 365     /* tell our transients that we're gone */
 366     for (it = self->transients; it != NULL; it = it->next) {
 367         if (((Client*)it->data)->transient_for != TRAN_GROUP) {
 368             ((Client*)it->data)->transient_for = NULL;
 369             client_calc_layer(it->data);
 370         }
 371     }
 372
 373     if (moveresize_client == self)
 374         moveresize_end(TRUE);
 375
 376     /* close any windows that are attached to this window */
 377     g_hash_table_foreach(menu_hash, client_close_menus, self);
 378
 379
 380     if (focus_client == self) {
 381         XEvent e;
 382
 383         /* focus the last focused window on the desktop, and ignore enter
 384            events from the unmap so it doesnt mess with the focus */
 385         while (XCheckTypedEvent(ob_display, EnterNotify, &e));
 386         client_unfocus(self);
 387     }
 388
 389     /* remove from its group */
 390     if (self->group) {
 391         group_remove(self->group, self);
 392         self->group = NULL;
 393     }
 394
 395     /* dispatch the unmapped event */
 396     dispatch_client(Event_Client_Unmapped, self, 0, 0);
 397     g_assert(self != NULL);
 398
 399     /* give the client its border back */
 400     client_toggle_border(self, TRUE);
 401
 402     /* reparent the window out of the frame, and free the frame */
 403     frame_release_client(self->frame, self);
 404     self->frame = NULL;
 405
 406     if (ob_state != State_Exiting) {
 407         /* these values should not be persisted across a window
 408            unmapping/mapping */
 409         prop_erase(self->window, prop_atoms.net_wm_desktop);
 410         prop_erase(self->window, prop_atoms.net_wm_state);
 411     } else {
 412         /* if we're left in an iconic state, the client wont be mapped. this is
 413            bad, since we will no longer be managing the window on restart */
 414         if (self->iconic)
 415             XMapWindow(ob_display, self->window);
 416     }
 417
 418
 419     g_message("Unmanaged window 0x%lx", self->window);
 420
 421     /* free all data allocated in the client struct */
 422     g_slist_free(self->transients);
 423     for (j = 0; j < self->nicons; ++j)
 424         g_free(self->icons[j].data);
 425     if (self->nicons > 0)
 426         g_free(self->icons);
 427     g_free(self->title);
 428     g_free(self->icon_title);
 429     g_free(self->name);
 430     g_free(self->class);
 431     g_free(self->role);
 432     g_free(self);
 433
 434     /* update the list hints */
 435     client_set_list();
 436 }
 437
 438 void client_move_onscreen(Client *self)
 439 {
 440     Rect *a;
 441     int x = self->frame->area.x, y = self->frame->area.y;
 442
 443     a = screen_area(self->desktop);
 444     if (x >= a->x + a->width - 1)
 445         x = a->x + a->width - self->frame->area.width;
 446     if (y >= a->y + a->height - 1)
 447         y = a->y + a->height - self->frame->area.height;
 448     if (x + self->frame->area.width - 1 < a->x)
 449         x = a->x;
 450     if (y + self->frame->area.height - 1< a->y)
 451         y = a->y;
 452
 453     frame_frame_gravity(self->frame, &x, &y); /* get where the client
 454                                                  should be */
 455     client_configure(self , Corner_TopLeft, x, y,
 456                      self->area.width, self->area.height,
 457                      TRUE, TRUE);
 458 }
 459
 460 static void client_toggle_border(Client *self, gboolean show)
 461 {
 462     /* adjust our idea of where the client is, based on its border. When the
 463        border is removed, the client should now be considered to be in a
 464        different position.
 465        when re-adding the border to the client, the same operation needs to be
 466        reversed. */
 467     int oldx = self->area.x, oldy = self->area.y;
 468     int x = oldx, y = oldy;
 469     switch(self->gravity) {
 470     default:
 471     case NorthWestGravity:
 472     case WestGravity:
 473     case SouthWestGravity:
 474         break;
 475     case NorthEastGravity:
 476     case EastGravity:
 477     case SouthEastGravity:
 478         if (show) x -= self->border_width * 2;
 479         else      x += self->border_width * 2;
 480         break;
 481     case NorthGravity:
 482     case SouthGravity:
 483     case CenterGravity:
 484     case ForgetGravity:
 485     case StaticGravity:
 486         if (show) x -= self->border_width;
 487         else      x += self->border_width;
 488         break;
 489     }
 490     switch(self->gravity) {
 491     default:
 492     case NorthWestGravity:
 493     case NorthGravity:
 494     case NorthEastGravity:
 495         break;
 496     case SouthWestGravity:
 497     case SouthGravity:
 498     case SouthEastGravity:
 499         if (show) y -= self->border_width * 2;
 500         else      y += self->border_width * 2;
 501         break;
 502     case WestGravity:
 503     case EastGravity:
 504     case CenterGravity:
 505     case ForgetGravity:
 506     case StaticGravity:
 507         if (show) y -= self->border_width;
 508         else      y += self->border_width;
 509         break;
 510     }
 511     self->area.x = x;
 512     self->area.y = y;
 513
 514     if (show) {
 515         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 516
 517         /* move the client so it is back it the right spot _with_ its
 518            border! */
 519         if (x != oldx || y != oldy)
 520             XMoveWindow(ob_display, self->window, x, y);
 521     } else
 522         XSetWindowBorderWidth(ob_display, self->window, 0);
 523 }
 524
 525
 526 static void client_get_all(Client *self)
 527 {
 528     /* update EVERYTHING!! */
 529
 530     self->ignore_unmaps = 0;
 531
 532     /* defaults */
 533     self->frame = NULL;
 534     self->title = self->icon_title = NULL;
 535     self->title_count = 1;
 536     self->name = self->class = self->role = NULL;
 537     self->wmstate = NormalState;
 538     self->transient = FALSE;
 539     self->transients = NULL;
 540     self->transient_for = NULL;
 541     self->layer = -1;
 542     self->urgent = FALSE;
 543     self->positioned = FALSE;
 544     self->disabled_decorations = 0;
 545     self->group = NULL;
 546     self->nicons = 0;
 547
 548     client_get_area(self);
 549     client_update_transient_for(self);
 550     client_update_wmhints(self);
 551     client_get_desktop(self);
 552     client_get_state(self);
 553     client_get_shaped(self);
 554
 555     client_get_mwm_hints(self);
 556     client_get_type(self);/* this can change the mwmhints for special cases */
 557
 558     client_update_protocols(self);
 559
 560     client_get_gravity(self); /* get the attribute gravity */
 561     client_update_normal_hints(self); /* this may override the attribute
 562                                          gravity */
 563
 564     /* got the type, the mwmhints, the protocols, and the normal hints
 565        (min/max sizes), so we're ready to set up the decorations/functions */
 566     client_setup_decor_and_functions(self);
 567
 568     client_update_title(self);
 569     client_update_class(self);
 570     client_update_strut(self);
 571     client_update_icons(self);
 572
 573     client_change_state(self);
 574 }
 575
 576 static void client_get_area(Client *self)
 577 {
 578     XWindowAttributes wattrib;
 579     Status ret;
 580
 581     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 582     g_assert(ret != BadWindow);
 583
 584     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
 585     self->border_width = wattrib.border_width;
 586 }
 587
 588 static void client_get_desktop(Client *self)
 589 {
 590     guint32 d;
 591
 592     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
 593         if (d >= screen_num_desktops && d != DESKTOP_ALL)
 594             d = screen_num_desktops - 1;
 595         self->desktop = d;
 596     } else {
 597         gboolean trdesk = FALSE;
 598
 599        if (self->transient_for) {
 600            if (self->transient_for != TRAN_GROUP) {
 601                 self->desktop = self->transient_for->desktop;
 602                 trdesk = TRUE;
 603             } else {
 604                 GSList *it;
 605
 606                 for (it = self->group->members; it; it = it->next)
 607                     if (it->data != self &&
 608                         !((Client*)it->data)->transient_for) {
 609                         self->desktop = ((Client*)it->data)->desktop;
 610                         trdesk = TRUE;
 611                         break;
 612                     }
 613             }
 614        }
 615        if (!trdesk)
 616            /* defaults to the current desktop */
 617            self->desktop = screen_desktop;
 618
 619         /* set the desktop hint, to make sure that it always exists */
 620         PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 621     }
 622 }
 623
 624 static void client_get_state(Client *self)
 625 {
 626     guint32 *state;
 627     guint num;
 628
 629     self->modal = self->shaded = self->max_horz = self->max_vert =
 630         self->fullscreen = self->above = self->below = self->iconic =
 631         self->skip_taskbar = self->skip_pager = FALSE;
 632
 633     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
 634         gulong i;
 635         for (i = 0; i < num; ++i) {
 636             if (state[i] == prop_atoms.net_wm_state_modal)
 637                 self->modal = TRUE;
 638             else if (state[i] == prop_atoms.net_wm_state_shaded)
 639                 self->shaded = TRUE;
 640             else if (state[i] == prop_atoms.net_wm_state_hidden)
 641                 self->iconic = TRUE;
 642             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
 643                 self->skip_taskbar = TRUE;
 644             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
 645                 self->skip_pager = TRUE;
 646             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
 647                 self->fullscreen = TRUE;
 648             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
 649                 self->max_vert = TRUE;
 650             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
 651                 self->max_horz = TRUE;
 652             else if (state[i] == prop_atoms.net_wm_state_above)
 653                 self->above = TRUE;
 654             else if (state[i] == prop_atoms.net_wm_state_below)
 655                 self->below = TRUE;
 656         }
 657
 658         g_free(state);
 659     }
 660 }
 661
 662 static void client_get_shaped(Client *self)
 663 {
 664     self->shaped = FALSE;
 665 #ifdef   SHAPE
 666     if (extensions_shape) {
 667         int foo;
 668         guint ufoo;
 669         int s;
 670
 671         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
 672
 673         XShapeQueryExtents(ob_display, self->window, &s, &foo,
 674                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
 675                            &ufoo);
 676         self->shaped = (s != 0);
 677     }
 678 #endif
 679 }
 680
 681 void client_update_transient_for(Client *self)
 682 {
 683     Window t = None;
 684     Client *c = NULL;
 685
 686     if (XGetTransientForHint(ob_display, self->window, &t)) {
 687         self->transient = TRUE;
 688         if (t != self->window) { /* cant be transient to itself! */
 689             c = g_hash_table_lookup(window_map, &t);
 690             /* if this happens then we need to check for it*/
 691             g_assert(c != self);
 692             g_assert(!c || WINDOW_IS_CLIENT(c));
 693
 694             if (!c && self->group) {
 695                 /* not transient to a client, see if it is transient for a
 696                    group */
 697                 if (t == self->group->leader ||
 698                     t == None ||
 699                     t == ob_root) {
 700                     /* window is a transient for its group! */
 701                     c = TRAN_GROUP;
 702                 }
 703             }
 704         }
 705     } else
 706         self->transient = FALSE;
 707
 708     /* if anything has changed... */
 709     if (c != self->transient_for) {
 710         if (self->transient_for == TRAN_GROUP) { /* transient of group */
 711             GSList *it;
 712
 713             /* remove from old parents */
 714             for (it = self->group->members; it; it = it->next)
 715                 if (it->data != self &&
 716                     !((Client*)it->data)->transient_for)
 717                     ((Client*)it->data)->transients =
 718                         g_slist_remove(((Client*)it->data)->transients, self);
 719         } else if (self->transient_for != NULL) { /* transient of window */
 720             /* remove from old parent */
 721             self->transient_for->transients =
 722                 g_slist_remove(self->transient_for->transients, self);
 723         }
 724         self->transient_for = c;
 725         if (self->transient_for == TRAN_GROUP) { /* transient of group */
 726             GSList *it;
 727
 728             /* add to new parents */
 729             for (it = self->group->members; it; it = it->next)
 730                 if (it->data != self &&
 731                     !((Client*)it->data)->transient_for)
 732                     ((Client*)it->data)->transients =
 733                         g_slist_append(((Client*)it->data)->transients, self);
 734
 735             /* remove all transients which are in the group, that causes
 736                circlular pointer hell of doom */
 737             for (it = self->group->members; it; it = it->next) {
 738                 GSList *sit, *next;
 739                 for (sit = self->transients; sit; sit = next) {
 740                     next = sit->next;
 741                     if (sit->data == it->data)
 742                         self->transients = g_slist_remove(self->transients,
 743                                                           sit->data);
 744                 }
 745             }
 746         } else if (self->transient_for != NULL) { /* transient of window */
 747             /* add to new parent */
 748             self->transient_for->transients =
 749                 g_slist_append(self->transient_for->transients, self);
 750         }
 751     }
 752 }
 753
 754 static void client_get_mwm_hints(Client *self)
 755 {
 756     guint num;
 757     guint32 *hints;
 758
 759     self->mwmhints.flags = 0; /* default to none */
 760
 761     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
 762                     &hints, &num)) {
 763         if (num >= MWM_ELEMENTS) {
 764             self->mwmhints.flags = hints[0];
 765             self->mwmhints.functions = hints[1];
 766             self->mwmhints.decorations = hints[2];
 767         }
 768         g_free(hints);
 769     }
 770 }
 771
 772 void client_get_type(Client *self)
 773 {
 774     guint num, i;
 775     guint32 *val;
 776
 777     self->type = -1;
 778
 779     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
 780         /* use the first value that we know about in the array */
 781         for (i = 0; i < num; ++i) {
 782             if (val[i] == prop_atoms.net_wm_window_type_desktop)
 783                 self->type = Type_Desktop;
 784             else if (val[i] == prop_atoms.net_wm_window_type_dock)
 785                 self->type = Type_Dock;
 786             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
 787                 self->type = Type_Toolbar;
 788             else if (val[i] == prop_atoms.net_wm_window_type_menu)
 789                 self->type = Type_Menu;
 790             else if (val[i] == prop_atoms.net_wm_window_type_utility)
 791                 self->type = Type_Utility;
 792             else if (val[i] == prop_atoms.net_wm_window_type_splash)
 793                 self->type = Type_Splash;
 794             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
 795                 self->type = Type_Dialog;
 796             else if (val[i] == prop_atoms.net_wm_window_type_normal)
 797                 self->type = Type_Normal;
 798             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
 799                 /* prevent this window from getting any decor or
 800                    functionality */
 801                 self->mwmhints.flags &= (MwmFlag_Functions |
 802                                          MwmFlag_Decorations);
 803                 self->mwmhints.decorations = 0;
 804                 self->mwmhints.functions = 0;
 805             }
 806             if (self->type != (WindowType) -1)
 807                 break; /* grab the first legit type */
 808         }
 809         g_free(val);
 810     }
 811
 812     if (self->type == (WindowType) -1) {
 813         /*the window type hint was not set, which means we either classify
 814           ourself as a normal window or a dialog, depending on if we are a
 815           transient. */
 816         if (self->transient)
 817             self->type = Type_Dialog;
 818         else
 819             self->type = Type_Normal;
 820     }
 821 }
 822
 823 void client_update_protocols(Client *self)
 824 {
 825     guint32 *proto;
 826     guint num_return, i;
 827
 828     self->focus_notify = FALSE;
 829     self->delete_window = FALSE;
 830
 831     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
 832         for (i = 0; i < num_return; ++i) {
 833             if (proto[i] == prop_atoms.wm_delete_window) {
 834                 /* this means we can request the window to close */
 835                 self->delete_window = TRUE;
 836             } else if (proto[i] == prop_atoms.wm_take_focus)
 837                 /* if this protocol is requested, then the window will be
 838                    notified whenever we want it to receive focus */
 839                 self->focus_notify = TRUE;
 840         }
 841         g_free(proto);
 842     }
 843 }
 844
 845 static void client_get_gravity(Client *self)
 846 {
 847     XWindowAttributes wattrib;
 848     Status ret;
 849
 850     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 851     g_assert(ret != BadWindow);
 852     self->gravity = wattrib.win_gravity;
 853 }
 854
 855 void client_update_normal_hints(Client *self)
 856 {
 857     XSizeHints size;
 858     long ret;
 859     int oldgravity = self->gravity;
 860
 861     /* defaults */
 862     self->min_ratio = 0.0f;
 863     self->max_ratio = 0.0f;
 864     SIZE_SET(self->size_inc, 1, 1);
 865     SIZE_SET(self->base_size, 0, 0);
 866     SIZE_SET(self->min_size, 0, 0);
 867     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
 868
 869     /* get the hints from the window */
 870     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
 871         self->positioned = !!(size.flags & (PPosition|USPosition));
 872
 873         if (size.flags & PWinGravity) {
 874             self->gravity = size.win_gravity;
 875
 876             /* if the client has a frame, i.e. has already been mapped and
 877                is changing its gravity */
 878             if (self->frame && self->gravity != oldgravity) {
 879                 /* move our idea of the client's position based on its new
 880                    gravity */
 881                 self->area.x = self->frame->area.x;
 882                 self->area.y = self->frame->area.y;
 883                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
 884             }
 885         }
 886
 887         if (size.flags & PAspect) {
 888             if (size.min_aspect.y)
 889                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
 890             if (size.max_aspect.y)
 891                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
 892         }
 893
 894         if (size.flags & PMinSize)
 895             SIZE_SET(self->min_size, size.min_width, size.min_height);
 896
 897         if (size.flags & PMaxSize)
 898             SIZE_SET(self->max_size, size.max_width, size.max_height);
 899
 900         if (size.flags & PBaseSize)
 901             SIZE_SET(self->base_size, size.base_width, size.base_height);
 902
 903         if (size.flags & PResizeInc)
 904             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
 905     }
 906 }
 907
 908 void client_setup_decor_and_functions(Client *self)
 909 {
 910     /* start with everything (cept fullscreen) */
 911     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
 912         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize |
 913         Decor_Shade;
 914     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
 915         Func_Shade;
 916     if (self->delete_window) {
 917         self->decorations |= Decor_Close;
 918         self->functions |= Func_Close;
 919     }
 920
 921     if (!(self->min_size.width < self->max_size.width ||
 922           self->min_size.height < self->max_size.height)) {
 923         self->decorations &= ~(Decor_Maximize | Decor_Handle);
 924         self->functions &= ~(Func_Resize | Func_Maximize);
 925     }
 926
 927     switch (self->type) {
 928     case Type_Normal:
 929         /* normal windows retain all of the possible decorations and
 930            functionality, and are the only windows that you can fullscreen */
 931         self->functions |= Func_Fullscreen;
 932         break;
 933
 934     case Type_Dialog:
 935     case Type_Utility:
 936         /* these windows cannot be maximized */
 937         self->decorations &= ~Decor_Maximize;
 938         self->functions &= ~Func_Maximize;
 939         break;
 940
 941     case Type_Menu:
 942     case Type_Toolbar:
 943         /* these windows get less functionality */
 944         self->decorations &= ~(Decor_Iconify | Decor_Handle);
 945         self->functions &= ~(Func_Iconify | Func_Resize);
 946         break;
 947
 948     case Type_Desktop:
 949     case Type_Dock:
 950     case Type_Splash:
 951         /* none of these windows are manipulated by the window manager */
 952         self->decorations = 0;
 953         self->functions = 0;
 954         break;
 955     }
 956
 957     /* Mwm Hints are applied subtractively to what has already been chosen for
 958        decor and functionality */
 959     if (self->mwmhints.flags & MwmFlag_Decorations) {
 960         if (! (self->mwmhints.decorations & MwmDecor_All)) {
 961             if (! (self->mwmhints.decorations & MwmDecor_Border))
 962                 self->decorations &= ~Decor_Border;
 963             if (! (self->mwmhints.decorations & MwmDecor_Handle))
 964                 self->decorations &= ~Decor_Handle;
 965             if (! (self->mwmhints.decorations & MwmDecor_Title))
 966                 self->decorations &= ~Decor_Titlebar;
 967             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
 968                 self->decorations &= ~Decor_Iconify;
 969             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
 970                 self->decorations &= ~Decor_Maximize;
 971         }
 972     }
 973
 974     if (self->mwmhints.flags & MwmFlag_Functions) {
 975         if (! (self->mwmhints.functions & MwmFunc_All)) {
 976             if (! (self->mwmhints.functions & MwmFunc_Resize))
 977                 self->functions &= ~Func_Resize;
 978             if (! (self->mwmhints.functions & MwmFunc_Move))
 979                 self->functions &= ~Func_Move;
 980             if (! (self->mwmhints.functions & MwmFunc_Iconify))
 981                 self->functions &= ~Func_Iconify;
 982             if (! (self->mwmhints.functions & MwmFunc_Maximize))
 983                 self->functions &= ~Func_Maximize;
 984             /* dont let mwm hints kill the close button
 985                if (! (self->mwmhints.functions & MwmFunc_Close))
 986                self->functions &= ~Func_Close; */
 987         }
 988     }
 989
 990     /* can't maximize without moving/resizing */
 991     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
 992         self->functions &= ~(Func_Maximize | Func_Fullscreen);
 993
 994     /* finally, user specified disabled decorations are applied to subtract
 995        decorations */
 996     if (self->disabled_decorations & Decor_Titlebar)
 997         self->decorations &= ~Decor_Titlebar;
 998     if (self->disabled_decorations & Decor_Handle)
 999         self->decorations &= ~Decor_Handle;
1000     if (self->disabled_decorations & Decor_Border)
1001         self->decorations &= ~Decor_Border;
1002     if (self->disabled_decorations & Decor_Iconify)
1003         self->decorations &= ~Decor_Iconify;
1004     if (self->disabled_decorations & Decor_Maximize)
1005         self->decorations &= ~Decor_Maximize;
1006     if (self->disabled_decorations & Decor_AllDesktops)
1007         self->decorations &= ~Decor_AllDesktops;
1008     if (self->disabled_decorations & Decor_Shade)
1009         self->decorations &= ~Decor_Shade;
1010     if (self->disabled_decorations & Decor_Close)
1011         self->decorations &= ~Decor_Close;
1012
1013     /* if we don't have a titlebar, then we cannot shade! */
1014     if (!(self->decorations & Decor_Titlebar))
1015         self->functions &= ~Func_Shade;
1016
1017     /* now we need to check against rules for the client's current state */
1018     if (self->fullscreen) {
1019         self->functions &= (Func_Close | Func_Fullscreen | Func_Iconify);
1020         self->decorations = 0;
1021     }
1022
1023     client_change_allowed_actions(self);
1024
1025     if (self->frame) {
1026         /* this makes sure that these windows appear on all desktops */
1027         if (self->type == Type_Desktop && self->desktop != DESKTOP_ALL)
1028             client_set_desktop(self, DESKTOP_ALL, FALSE);
1029
1030         /* change the decors on the frame, and with more/less decorations,
1031            we may also need to be repositioned */
1032         frame_adjust_area(self->frame, TRUE, TRUE);
1033         /* with new decor, the window's maximized size may change */
1034         client_remaximize(self);
1035     } else {
1036         /* this makes sure that these windows appear on all desktops */
1037         if (self->type == Type_Desktop && self->desktop != DESKTOP_ALL)
1038             self->desktop = DESKTOP_ALL;
1039     }
1040 }
1041
1042 static void client_change_allowed_actions(Client *self)
1043 {
1044     guint32 actions[9];
1045     int num = 0;
1046
1047     /* desktop windows are kept on all desktops */
1048     if (self->type != Type_Desktop)
1049         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1050
1051     if (self->functions & Func_Shade)
1052         actions[num++] = prop_atoms.net_wm_action_shade;
1053     if (self->functions & Func_Close)
1054         actions[num++] = prop_atoms.net_wm_action_close;
1055     if (self->functions & Func_Move)
1056         actions[num++] = prop_atoms.net_wm_action_move;
1057     if (self->functions & Func_Iconify)
1058         actions[num++] = prop_atoms.net_wm_action_minimize;
1059     if (self->functions & Func_Resize)
1060         actions[num++] = prop_atoms.net_wm_action_resize;
1061     if (self->functions & Func_Fullscreen)
1062         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1063     if (self->functions & Func_Maximize) {
1064         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1065         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1066     }
1067
1068     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1069
1070     /* make sure the window isn't breaking any rules now */
1071
1072     if (!(self->functions & Func_Shade) && self->shaded) {
1073         if (self->frame) client_shade(self, FALSE);
1074         else self->shaded = FALSE;
1075     }
1076     if (!(self->functions & Func_Iconify) && self->iconic) {
1077         g_message("UNSETTING ICONIC");
1078         if (self->frame) client_iconify(self, FALSE, TRUE);
1079         else self->iconic = FALSE;
1080     }
1081     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
1082         if (self->frame) client_fullscreen(self, FALSE, TRUE);
1083         else self->fullscreen = FALSE;
1084     }
1085     if (!(self->functions & Func_Maximize) && (self->max_horz ||
1086                                                self->max_vert)) {
1087         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
1088         else self->max_vert = self->max_horz = FALSE;
1089     }
1090 }
1091
1092 void client_remaximize(Client *self)
1093 {
1094     int dir;
1095     if (self->max_horz && self->max_vert)
1096         dir = 0;
1097     else if (self->max_horz)
1098         dir = 1;
1099     else if (self->max_vert)
1100         dir = 2;
1101     else
1102         return; /* not maximized */
1103     self->max_horz = self->max_vert = FALSE;
1104     client_maximize(self, TRUE, dir, FALSE);
1105 }
1106
1107 void client_update_wmhints(Client *self)
1108 {
1109     XWMHints *hints;
1110     gboolean ur = FALSE;
1111     GSList *it;
1112
1113     /* assume a window takes input if it doesnt specify */
1114     self->can_focus = TRUE;
1115
1116     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1117         if (hints->flags & InputHint)
1118             self->can_focus = hints->input;
1119
1120         /* only do this when first managing the window *AND* when we aren't
1121            starting up! */
1122         if (ob_state != State_Starting && self->frame == NULL)
1123             if (hints->flags & StateHint)
1124                 self->iconic = hints->initial_state == IconicState;
1125
1126         if (hints->flags & XUrgencyHint)
1127             ur = TRUE;
1128
1129         if (!(hints->flags & WindowGroupHint))
1130             hints->window_group = None;
1131
1132         /* did the group state change? */
1133         if (hints->window_group !=
1134             (self->group ? self->group->leader : None)) {
1135             /* remove from the old group if there was one */
1136             if (self->group != NULL) {
1137                 /* remove transients of the group */
1138                 for (it = self->group->members; it; it = it->next)
1139                     self->transients = g_slist_remove(self->transients,
1140                                                       it->data);
1141                 group_remove(self->group, self);
1142                 self->group = NULL;
1143             }
1144             if (hints->window_group != None) {
1145                 self->group = group_add(hints->window_group, self);
1146
1147                 /* i can only have transients from the group if i am not
1148                    transient myself */
1149                 if (!self->transient_for) {
1150                     /* add other transients of the group that are already
1151                        set up */
1152                     for (it = self->group->members; it; it = it->next)
1153                         if (it->data != self &&
1154                             ((Client*)it->data)->transient_for == TRAN_GROUP)
1155                             self->transients = g_slist_append(self->transients,
1156                                                               it->data);
1157                 }
1158             }
1159
1160             /* the WM_HINTS can contain an icon */
1161             client_update_icons(self);
1162
1163             /* because the self->transient flag wont change from this call,
1164                we don't need to update the window's type and such, only its
1165                transient_for, and the transients lists of other windows in
1166                the group may be affected */
1167             client_update_transient_for(self);
1168         }
1169
1170         XFree(hints);
1171     }
1172
1173     if (ur != self->urgent) {
1174         self->urgent = ur;
1175         g_message("Urgent Hint for 0x%lx: %s", self->window,
1176                   ur ? "ON" : "OFF");
1177         /* fire the urgent callback if we're mapped, otherwise, wait until
1178            after we're mapped */
1179         if (self->frame)
1180             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1181     }
1182 }
1183
1184 void client_update_title(Client *self)
1185 {
1186     GList *it;
1187     guint32 nums;
1188     guint i;
1189     char *data = NULL;
1190     gboolean read_title;
1191
1192     g_free(self->title);
1193
1194     /* try netwm */
1195     if (!PROP_GETS(self->window, net_wm_name, utf8, &data))
1196         /* try old x stuff */
1197         if (!PROP_GETS(self->window, wm_name, locale, &data))
1198             data = g_strdup("Unnamed Window");
1199
1200     /* look for duplicates and append a number */
1201     nums = 0;
1202     for (it = client_list; it; it = it->next)
1203         if (it->data != self) {
1204             Client *c = it->data;
1205             if (0 == strncmp(c->title, data, strlen(data)))
1206                 nums |= 1 << c->title_count;
1207         }
1208     /* find first free number */
1209     for (i = 1; i <= 32; ++i)
1210         if (!(nums & (1 << i))) {
1211             if (self->title_count == 1 || i == 1)
1212                 self->title_count = i;
1213             break;
1214         }
1215     /* dont display the number for the first window */
1216     if (self->title_count > 1) {
1217         char *vdata, *ndata;
1218         ndata = g_strdup_printf(" - [%u]", self->title_count);
1219         vdata = g_strconcat(data, ndata, NULL);
1220         g_free(ndata);
1221         g_free(data);
1222         data = vdata;
1223     }
1224
1225     PROP_SETS(self->window, net_wm_visible_name, data);
1226
1227     self->title = data;
1228
1229     if (self->frame)
1230         frame_adjust_title(self->frame);
1231
1232     /* update the icon title */
1233     data = NULL;
1234     g_free(self->icon_title);
1235
1236     read_title = TRUE;
1237     /* try netwm */
1238     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1239         /* try old x stuff */
1240         if (!PROP_GETS(self->window, wm_icon_name, locale, &data)) {
1241             data = g_strdup(self->title);
1242             read_title = FALSE;
1243         }
1244
1245     /* append the title count, dont display the number for the first window */
1246     if (read_title && self->title_count > 1) {
1247         char *vdata, *ndata;
1248         ndata = g_strdup_printf(" - [%u]", self->title_count);
1249         vdata = g_strconcat(data, ndata, NULL);
1250         g_free(ndata);
1251         g_free(data);
1252         data = vdata;
1253     }
1254
1255     PROP_SETS(self->window, net_wm_visible_icon_name, data);
1256
1257     self->icon_title = data;
1258 }
1259
1260 void client_update_class(Client *self)
1261 {
1262     char **data;
1263     char *s;
1264
1265     if (self->name) g_free(self->name);
1266     if (self->class) g_free(self->class);
1267     if (self->role) g_free(self->role);
1268
1269     self->name = self->class = self->role = NULL;
1270
1271     if (PROP_GETSS(self->window, wm_class, locale, &data)) {
1272         if (data[0]) {
1273             self->name = g_strdup(data[0]);
1274             if (data[1])
1275                 self->class = g_strdup(data[1]);
1276         }
1277         g_strfreev(data);
1278     }
1279
1280     if (PROP_GETS(self->window, wm_window_role, locale, &s))
1281         self->role = g_strdup(s);
1282
1283     if (self->name == NULL) self->name = g_strdup("");
1284     if (self->class == NULL) self->class = g_strdup("");
1285     if (self->role == NULL) self->role = g_strdup("");
1286 }
1287
1288 void client_update_strut(Client *self)
1289 {
1290     guint num;
1291     guint32 *data;
1292
1293     if (!PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1294         STRUT_SET(self->strut, 0, 0, 0, 0);
1295     } else {
1296         if (num == 4)
1297             STRUT_SET(self->strut, data[0], data[2], data[1], data[3]);
1298         else
1299             STRUT_SET(self->strut, 0, 0, 0, 0);
1300         g_free(data);
1301     }
1302
1303     /* updating here is pointless while we're being mapped cuz we're not in
1304        the client list yet */
1305     if (self->frame)
1306         screen_update_struts();
1307 }
1308
1309 void client_update_icons(Client *self)
1310 {
1311     guint num;
1312     guint32 *data;
1313     guint w, h, i;
1314     int j;
1315
1316     for (j = 0; j < self->nicons; ++j)
1317         g_free(self->icons[j].data);
1318     if (self->nicons > 0)
1319         g_free(self->icons);
1320     self->nicons = 0;
1321
1322     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
1323         /* figure out how many valid icons are in here */
1324         i = 0;
1325         while (num - i > 2) {
1326             w = data[i++];
1327             h = data[i++];
1328             i += w * h;
1329             if (i > num || w*h == 0) break;
1330             ++self->nicons;
1331         }
1332
1333         self->icons = g_new(Icon, self->nicons);
1334
1335         /* store the icons */
1336         i = 0;
1337         for (j = 0; j < self->nicons; ++j) {
1338             guint x, y, t;
1339
1340             w = self->icons[j].width = data[i++];
1341             h = self->icons[j].height = data[i++];
1342
1343             if (w*h == 0) continue;
1344
1345             self->icons[j].data = g_new(pixel32, w * h);
1346             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
1347                 if (x >= w) {
1348                     x = 0;
1349                     ++y;
1350                 }
1351                 self->icons[j].data[t] =
1352                     (((data[i] >> 24) & 0xff) << default_alpha_offset) +
1353                     (((data[i] >> 16) & 0xff) << default_red_offset) +
1354                     (((data[i] >> 8) & 0xff) << default_green_offset) +
1355                     (((data[i] >> 0) & 0xff) << default_blue_offset);
1356             }
1357             g_assert(i <= num);
1358         }
1359
1360         g_free(data);
1361     } else if (PROP_GETA32(self->window, kwm_win_icon,
1362                            kwm_win_icon, &data, &num)) {
1363         if (num == 2) {
1364             self->nicons++;
1365             self->icons = g_new(Icon, self->nicons);
1366             xerror_set_ignore(TRUE);
1367             if (!render_pixmap_to_rgba(data[0], data[1],
1368                                        &self->icons[self->nicons-1].width,
1369                                        &self->icons[self->nicons-1].height,
1370                                        &self->icons[self->nicons-1].data)) {
1371                 g_free(&self->icons[self->nicons-1]);
1372                 self->nicons--;
1373             }
1374             xerror_set_ignore(FALSE);
1375         }
1376         g_free(data);
1377     } else {
1378         XWMHints *hints;
1379
1380         if ((hints = XGetWMHints(ob_display, self->window))) {
1381             if (hints->flags & IconPixmapHint) {
1382                 self->nicons++;
1383                 self->icons = g_new(Icon, self->nicons);
1384                 xerror_set_ignore(TRUE);
1385                 if (!render_pixmap_to_rgba(hints->icon_pixmap,
1386                                            (hints->flags & IconMaskHint ?
1387                                             hints->icon_mask : None),
1388                                            &self->icons[self->nicons-1].width,
1389                                            &self->icons[self->nicons-1].height,
1390                                            &self->icons[self->nicons-1].data)){
1391                     g_free(&self->icons[self->nicons-1]);
1392                     self->nicons--;
1393                 }
1394                 xerror_set_ignore(FALSE);
1395             }
1396             XFree(hints);
1397         }
1398     }
1399
1400     if (self->frame)
1401         frame_adjust_icon(self->frame);
1402 }
1403
1404 static void client_change_state(Client *self)
1405 {
1406     guint32 state[2];
1407     guint32 netstate[10];
1408     guint num;
1409
1410     state[0] = self->wmstate;
1411     state[1] = None;
1412     PROP_SETA32(self->window, wm_state, wm_state, state, 2);
1413
1414     num = 0;
1415     if (self->modal)
1416         netstate[num++] = prop_atoms.net_wm_state_modal;
1417     if (self->shaded)
1418         netstate[num++] = prop_atoms.net_wm_state_shaded;
1419     if (self->iconic)
1420         netstate[num++] = prop_atoms.net_wm_state_hidden;
1421     if (self->skip_taskbar)
1422         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1423     if (self->skip_pager)
1424         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1425     if (self->fullscreen)
1426         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1427     if (self->max_vert)
1428         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1429     if (self->max_horz)
1430         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1431     if (self->above)
1432         netstate[num++] = prop_atoms.net_wm_state_above;
1433     if (self->below)
1434         netstate[num++] = prop_atoms.net_wm_state_below;
1435     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
1436
1437     client_calc_layer(self);
1438
1439     if (self->frame)
1440         frame_adjust_state(self->frame);
1441 }
1442
1443 Client *client_search_focus_tree(Client *self)
1444 {
1445     GSList *it;
1446     Client *ret;
1447
1448     for (it = self->transients; it != NULL; it = it->next) {
1449         if (client_focused(it->data)) return it->data;
1450         if ((ret = client_search_focus_tree(it->data))) return ret;
1451     }
1452     return NULL;
1453 }
1454
1455 Client *client_search_focus_tree_full(Client *self)
1456 {
1457     if (self->transient_for) {
1458         if (self->transient_for != TRAN_GROUP) {
1459             return client_search_focus_tree_full(self->transient_for);
1460         } else {
1461             GSList *it;
1462             gboolean recursed = FALSE;
1463
1464             for (it = self->group->members; it; it = it->next)
1465                 if (!((Client*)it->data)->transient_for) {
1466                     Client *c;
1467                     if ((c = client_search_focus_tree_full(it->data)))
1468                         return c;
1469                     recursed = TRUE;
1470                 }
1471             if (recursed)
1472               return NULL;
1473         }
1474     }
1475
1476     /* this function checks the whole tree, the client_search_focus_tree~
1477        does not, so we need to check this window */
1478     if (client_focused(self))
1479       return self;
1480     return client_search_focus_tree(self);
1481 }
1482
1483 static StackLayer calc_layer(Client *self)
1484 {
1485     StackLayer l;
1486
1487     if (self->fullscreen) l = Layer_Fullscreen;
1488     else if (self->type == Type_Desktop) l = Layer_Desktop;
1489     else if (self->type == Type_Dock) {
1490         if (!self->below) l = Layer_Top;
1491         else l = Layer_Normal;
1492     }
1493     else if (self->above) l = Layer_Above;
1494     else if (self->below) l = Layer_Below;
1495     else l = Layer_Normal;
1496
1497     return l;
1498 }
1499
1500 static void calc_recursive(Client *self, Client *orig, StackLayer l,
1501                            gboolean raised)
1502 {
1503     StackLayer old, own;
1504     GSList *it;
1505
1506     old = self->layer;
1507     own = calc_layer(self);
1508     self->layer = l > own ? l : own;
1509
1510     for (it = self->transients; it; it = it->next)
1511         calc_recursive(it->data, orig, l, raised ? raised : l != old);
1512
1513     if (!raised && l != old)
1514         if (orig->frame) /* only restack if the original window is managed */
1515             stacking_raise(CLIENT_AS_WINDOW(self));
1516 }
1517
1518 void client_calc_layer(Client *self)
1519 {
1520     StackLayer l;
1521     Client *orig;
1522
1523     orig = self;
1524
1525     /* transients take on the layer of their parents */
1526     if (self->transient_for) {
1527         if (self->transient_for != TRAN_GROUP) {
1528             self = self->transient_for;
1529         } else {
1530             GSList *it;
1531
1532             for (it = self->group->members; it; it = it->next)
1533                 if (it->data != self &&
1534                     !((Client*)it->data)->transient_for) {
1535                     self = it->data;
1536                     break;
1537                 }
1538         }
1539     }
1540
1541     l = calc_layer(self);
1542
1543     calc_recursive(self, orig, l, FALSE);
1544 }
1545
1546 gboolean client_should_show(Client *self)
1547 {
1548     if (self->iconic) return FALSE;
1549     else if (!(self->desktop == screen_desktop ||
1550                self->desktop == DESKTOP_ALL)) return FALSE;
1551     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1552
1553     return TRUE;
1554 }
1555
1556 static void client_showhide(Client *self)
1557 {
1558
1559     if (client_should_show(self))
1560         frame_show(self->frame);
1561     else
1562         frame_hide(self->frame);
1563 }
1564
1565 gboolean client_normal(Client *self) {
1566     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1567               self->type == Type_Splash);
1568 }
1569
1570 static void client_apply_startup_state(Client *self)
1571 {
1572     /* these are in a carefully crafted order.. */
1573
1574     if (self->iconic) {
1575         self->iconic = FALSE;
1576         client_iconify(self, TRUE, FALSE);
1577     }
1578     if (self->fullscreen) {
1579         self->fullscreen = FALSE;
1580         client_fullscreen(self, TRUE, FALSE);
1581     }
1582     if (self->shaded) {
1583         self->shaded = FALSE;
1584         client_shade(self, TRUE);
1585     }
1586     if (self->urgent)
1587         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1588
1589     if (self->max_vert && self->max_horz) {
1590         self->max_vert = self->max_horz = FALSE;
1591         client_maximize(self, TRUE, 0, FALSE);
1592     } else if (self->max_vert) {
1593         self->max_vert = FALSE;
1594         client_maximize(self, TRUE, 2, FALSE);
1595     } else if (self->max_horz) {
1596         self->max_horz = FALSE;
1597         client_maximize(self, TRUE, 1, FALSE);
1598     }
1599
1600     /* nothing to do for the other states:
1601        skip_taskbar
1602        skip_pager
1603        modal
1604        above
1605        below
1606     */
1607 }
1608
1609 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1610                       gboolean user, gboolean final)
1611 {
1612     gboolean moved = FALSE, resized = FALSE;
1613
1614     /* gets the frame's position */
1615     frame_client_gravity(self->frame, &x, &y);
1616
1617     /* these positions are frame positions, not client positions */
1618
1619     /* set the size and position if fullscreen */
1620     if (self->fullscreen) {
1621         x = 0;
1622         y = 0;
1623         w = screen_physical_size.width;
1624         h = screen_physical_size.height;
1625         user = FALSE; /* ignore that increment etc shit when in fullscreen */
1626     } else {
1627         /* set the size and position if maximized */
1628         if (self->max_horz) {
1629             x = screen_area(self->desktop)->x - self->frame->size.left;
1630             w = screen_area(self->desktop)->width;
1631         }
1632         if (self->max_vert) {
1633             y = screen_area(self->desktop)->y;
1634             h = screen_area(self->desktop)->height -
1635                 self->frame->size.top - self->frame->size.bottom;
1636         }
1637     }
1638
1639     /* gets the client's position */
1640     frame_frame_gravity(self->frame, &x, &y);
1641
1642     /* these override the above states! if you cant move you can't move! */
1643     if (user) {
1644         if (!(self->functions & Func_Move)) {
1645             x = self->area.x;
1646             y = self->area.y;
1647         }
1648         if (!(self->functions & Func_Resize)) {
1649             w = self->area.width;
1650             h = self->area.height;
1651         }
1652     }
1653
1654     if (!(w == self->area.width && h == self->area.height)) {
1655         w -= self->base_size.width;
1656         h -= self->base_size.height;
1657
1658         if (user) {
1659             /* for interactive resizing. have to move half an increment in each
1660                direction. */
1661
1662             /* how far we are towards the next size inc */
1663             int mw = w % self->size_inc.width;
1664             int mh = h % self->size_inc.height;
1665             /* amount to add */
1666             int aw = self->size_inc.width / 2;
1667             int ah = self->size_inc.height / 2;
1668             /* don't let us move into a new size increment */
1669             if (mw + aw >= self->size_inc.width)
1670                 aw = self->size_inc.width - mw - 1;
1671             if (mh + ah >= self->size_inc.height)
1672                 ah = self->size_inc.height - mh - 1;
1673             w += aw;
1674             h += ah;
1675
1676             /* if this is a user-requested resize, then check against min/max
1677                sizes and aspect ratios */
1678
1679             /* smaller than min size or bigger than max size? */
1680             if (w > self->max_size.width) w = self->max_size.width;
1681             if (w < self->min_size.width) w = self->min_size.width;
1682             if (h > self->max_size.height) h = self->max_size.height;
1683             if (h < self->min_size.height) h = self->min_size.height;
1684
1685             /* adjust the height ot match the width for the aspect ratios */
1686             if (self->min_ratio)
1687                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1688             if (self->max_ratio)
1689                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1690         }
1691
1692         /* keep to the increments */
1693         w /= self->size_inc.width;
1694         h /= self->size_inc.height;
1695
1696         /* you cannot resize to nothing */
1697         if (w < 1) w = 1;
1698         if (h < 1) h = 1;
1699
1700         /* store the logical size */
1701         SIZE_SET(self->logical_size, w, h);
1702
1703         w *= self->size_inc.width;
1704         h *= self->size_inc.height;
1705
1706         w += self->base_size.width;
1707         h += self->base_size.height;
1708     }
1709
1710     switch (anchor) {
1711     case Corner_TopLeft:
1712         break;
1713     case Corner_TopRight:
1714         x -= w - self->area.width;
1715         break;
1716     case Corner_BottomLeft:
1717         y -= h - self->area.height;
1718         break;
1719     case Corner_BottomRight:
1720         x -= w - self->area.width;
1721         y -= h - self->area.height;
1722         break;
1723     }
1724
1725     moved = x != self->area.x || y != self->area.y;
1726     resized = w != self->area.width || h != self->area.height;
1727
1728     RECT_SET(self->area, x, y, w, h);
1729
1730     if (resized)
1731         XResizeWindow(ob_display, self->window, w, h);
1732
1733     /* move/resize the frame to match the request */
1734     if (self->frame) {
1735         if (moved || resized)
1736             frame_adjust_area(self->frame, moved, resized);
1737
1738         if (!user || final) {
1739             XEvent event;
1740             event.type = ConfigureNotify;
1741             event.xconfigure.display = ob_display;
1742             event.xconfigure.event = self->window;
1743             event.xconfigure.window = self->window;
1744
1745             /* root window real coords */
1746             event.xconfigure.x = self->frame->area.x + self->frame->size.left;
1747             event.xconfigure.y = self->frame->area.y + self->frame->size.top;
1748
1749             event.xconfigure.width = w;
1750             event.xconfigure.height = h;
1751             event.xconfigure.border_width = 0;
1752             event.xconfigure.above = self->frame->plate;
1753             event.xconfigure.override_redirect = FALSE;
1754             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1755                        FALSE, StructureNotifyMask, &event);
1756         }
1757     }
1758 }
1759
1760 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1761 {
1762     int x, y, w, h;
1763
1764     if (!(self->functions & Func_Fullscreen) || /* can't */
1765         self->fullscreen == fs) return;         /* already done */
1766
1767     self->fullscreen = fs;
1768     client_change_state(self); /* change the state hints on the client,
1769                                   and adjust out layer/stacking */
1770
1771     if (fs) {
1772         if (savearea) {
1773             guint32 dimensions[4];
1774             dimensions[0] = self->area.x;
1775             dimensions[1] = self->area.y;
1776             dimensions[2] = self->area.width;
1777             dimensions[3] = self->area.height;
1778
1779             PROP_SETA32(self->window, openbox_premax, cardinal,
1780                         dimensions, 4);
1781         }
1782
1783         /* these are not actually used cuz client_configure will set them
1784            as appropriate when the window is fullscreened */
1785         x = y = w = h = 0;
1786     } else {
1787         guint num;
1788         gint32 *dimensions;
1789
1790         /* pick some fallbacks... */
1791         x = screen_area(self->desktop)->x +
1792             screen_area(self->desktop)->width / 4;
1793         y = screen_area(self->desktop)->y +
1794             screen_area(self->desktop)->height / 4;
1795         w = screen_area(self->desktop)->width / 2;
1796         h = screen_area(self->desktop)->height / 2;
1797
1798         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1799                         (guint32**)&dimensions, &num)) {
1800             if (num == 4) {
1801                 x = dimensions[0];
1802                 y = dimensions[1];
1803                 w = dimensions[2];
1804                 h = dimensions[3];
1805             }
1806             g_free(dimensions);
1807         }
1808     }
1809
1810     client_setup_decor_and_functions(self);
1811
1812     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1813
1814     /* try focus us when we go into fullscreen mode */
1815     client_focus(self);
1816 }
1817
1818 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1819 {
1820     GSList *it;
1821
1822     /* move up the transient chain as far as possible first */
1823     if (self->transient_for) {
1824         if (self->transient_for != TRAN_GROUP) {
1825             if (self->transient_for->iconic != iconic) {
1826                 client_iconify(self->transient_for, iconic, curdesk);
1827                 return;
1828             }
1829         } else {
1830             GSList *it;
1831
1832             for (it = self->group->members; it; it = it->next) {
1833                 Client *c = it->data;
1834                 if (c != self && c->iconic != iconic &&
1835                     !c->transient_for) {
1836                     client_iconify(it->data, iconic, curdesk);
1837                     break;
1838                 }
1839             }
1840             if (it != NULL) return;
1841         }
1842     }
1843
1844     if (self->iconic == iconic) return; /* nothing to do */
1845
1846     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1847               self->window);
1848
1849     self->iconic = iconic;
1850
1851     if (iconic) {
1852         self->wmstate = IconicState;
1853         self->ignore_unmaps++;
1854         /* we unmap the client itself so that we can get MapRequest events,
1855            and because the ICCCM tells us to! */
1856         XUnmapWindow(ob_display, self->window);
1857
1858         /* update the focus lists.. iconic windows go to the bottom of the
1859          list, put the new iconic window at the 'top of the bottom'. */
1860         focus_order_to_top(self);
1861     } else {
1862         if (curdesk)
1863             client_set_desktop(self, screen_desktop, FALSE);
1864         self->wmstate = self->shaded ? IconicState : NormalState;
1865         XMapWindow(ob_display, self->window);
1866
1867         /* this puts it after the current focused window */
1868         focus_order_remove(self);
1869         focus_order_add_new(self);
1870     }
1871     client_change_state(self);
1872     client_showhide(self);
1873     screen_update_struts();
1874
1875     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1876                     self, 0, 0);
1877
1878     /* iconify all transients */
1879     for (it = self->transients; it != NULL; it = it->next)
1880         if (it->data != self) client_iconify(it->data, iconic, curdesk);
1881 }
1882
1883 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1884 {
1885     int x, y, w, h;
1886
1887     g_assert(dir == 0 || dir == 1 || dir == 2);
1888     if (!(self->functions & Func_Maximize)) return; /* can't */
1889
1890     /* check if already done */
1891     if (max) {
1892         if (dir == 0 && self->max_horz && self->max_vert) return;
1893         if (dir == 1 && self->max_horz) return;
1894         if (dir == 2 && self->max_vert) return;
1895     } else {
1896         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1897         if (dir == 1 && !self->max_horz) return;
1898         if (dir == 2 && !self->max_vert) return;
1899     }
1900
1901     /* work with the frame's coords */
1902     x = self->frame->area.x;
1903     y = self->frame->area.y;
1904     w = self->area.width;
1905     h = self->area.height;
1906
1907     if (max) {
1908         if (savearea) {
1909             gint32 dimensions[4];
1910             gint32 *readdim;
1911             guint num;
1912
1913             dimensions[0] = x;
1914             dimensions[1] = y;
1915             dimensions[2] = w;
1916             dimensions[3] = h;
1917
1918             /* get the property off the window and use it for the dimensions
1919                we are already maxed on */
1920             if (PROP_GETA32(self->window, openbox_premax, cardinal,
1921                             (guint32**)&readdim, &num)) {
1922                 if (num == 4) {
1923                     if (self->max_horz) {
1924                         dimensions[0] = readdim[0];
1925                         dimensions[2] = readdim[2];
1926                     }
1927                     if (self->max_vert) {
1928                         dimensions[1] = readdim[1];
1929                         dimensions[3] = readdim[3];
1930                     }
1931                 }
1932                 g_free(readdim);
1933             }
1934
1935             PROP_SETA32(self->window, openbox_premax, cardinal,
1936                         (guint32*)dimensions, 4);
1937         }
1938     } else {
1939         guint num;
1940         gint32 *dimensions;
1941
1942         /* pick some fallbacks... */
1943         if (dir == 0 || dir == 1) { /* horz */
1944             x = screen_area(self->desktop)->x +
1945                 screen_area(self->desktop)->width / 4;
1946             w = screen_area(self->desktop)->width / 2;
1947         }
1948         if (dir == 0 || dir == 2) { /* vert */
1949             y = screen_area(self->desktop)->y +
1950                 screen_area(self->desktop)->height / 4;
1951             h = screen_area(self->desktop)->height / 2;
1952         }
1953
1954         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1955                         (guint32**)&dimensions, &num)) {
1956             if (num == 4) {
1957                 if (dir == 0 || dir == 1) { /* horz */
1958                     x = dimensions[0];
1959                     w = dimensions[2];
1960                 }
1961                 if (dir == 0 || dir == 2) { /* vert */
1962                     y = dimensions[1];
1963                     h = dimensions[3];
1964                 }
1965             }
1966             g_free(dimensions);
1967         }
1968     }
1969
1970     if (dir == 0 || dir == 1) /* horz */
1971         self->max_horz = max;
1972     if (dir == 0 || dir == 2) /* vert */
1973         self->max_vert = max;
1974
1975     if (!self->max_horz && !self->max_vert)
1976         PROP_ERASE(self->window, openbox_premax);
1977
1978     client_change_state(self); /* change the state hints on the client */
1979
1980     /* figure out where the client should be going */
1981     frame_frame_gravity(self->frame, &x, &y);
1982     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1983 }
1984
1985 void client_shade(Client *self, gboolean shade)
1986 {
1987     if ((!(self->functions & Func_Shade) && shade) || /* can't shade */
1988         self->shaded == shade) return;     /* already done */
1989
1990     /* when we're iconic, don't change the wmstate */
1991     if (!self->iconic)
1992         self->wmstate = shade ? IconicState : NormalState;
1993     self->shaded = shade;
1994     client_change_state(self);
1995     /* resize the frame to just the titlebar */
1996     frame_adjust_area(self->frame, FALSE, FALSE);
1997 }
1998
1999 void client_close(Client *self)
2000 {
2001     XEvent ce;
2002
2003     if (!(self->functions & Func_Close)) return;
2004
2005     /*
2006       XXX: itd be cool to do timeouts and shit here for killing the client's
2007       process off
2008       like... if the window is around after 5 seconds, then the close button
2009       turns a nice red, and if this function is called again, the client is
2010       explicitly killed.
2011     */
2012
2013     ce.xclient.type = ClientMessage;
2014     ce.xclient.message_type =  prop_atoms.wm_protocols;
2015     ce.xclient.display = ob_display;
2016     ce.xclient.window = self->window;
2017     ce.xclient.format = 32;
2018     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
2019     ce.xclient.data.l[1] = event_lasttime;
2020     ce.xclient.data.l[2] = 0l;
2021     ce.xclient.data.l[3] = 0l;
2022     ce.xclient.data.l[4] = 0l;
2023     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2024 }
2025
2026 void client_kill(Client *self)
2027 {
2028     XKillClient(ob_display, self->window);
2029 }
2030
2031 void client_set_desktop(Client *self, guint target, gboolean donthide)
2032 {
2033     guint old;
2034
2035     if (target == self->desktop) return;
2036
2037     g_message("Setting desktop %u", target+1);
2038
2039     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
2040
2041     /* remove from the old desktop(s) */
2042     focus_order_remove(self);
2043
2044     old = self->desktop;
2045     self->desktop = target;
2046     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
2047     /* the frame can display the current desktop state */
2048     frame_adjust_state(self->frame);
2049     /* 'move' the window to the new desktop */
2050     if (!donthide)
2051         client_showhide(self);
2052     /* raise if it was not already on the desktop */
2053     if (old != DESKTOP_ALL)
2054         stacking_raise(CLIENT_AS_WINDOW(self));
2055     screen_update_struts();
2056
2057     /* add to the new desktop(s) */
2058     if (config_focus_new)
2059         focus_order_to_top(self);
2060     else
2061         focus_order_to_bottom(self);
2062
2063     dispatch_client(Event_Client_Desktop, self, target, old);
2064 }
2065
2066 Client *client_search_modal_child(Client *self)
2067 {
2068     GSList *it;
2069     Client *ret;
2070
2071     for (it = self->transients; it != NULL; it = it->next) {
2072         Client *c = it->data;
2073         if ((ret = client_search_modal_child(c))) return ret;
2074         if (c->modal) return c;
2075     }
2076     return NULL;
2077 }
2078
2079 gboolean client_validate(Client *self)
2080 {
2081     XEvent e;
2082
2083     XSync(ob_display, FALSE); /* get all events on the server */
2084
2085     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
2086         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
2087         XPutBackEvent(ob_display, &e);
2088         return FALSE;
2089     }
2090
2091     return TRUE;
2092 }
2093
2094 void client_set_wm_state(Client *self, long state)
2095 {
2096     if (state == self->wmstate) return; /* no change */
2097
2098     switch (state) {
2099     case IconicState:
2100         client_iconify(self, TRUE, TRUE);
2101         break;
2102     case NormalState:
2103         client_iconify(self, FALSE, TRUE);
2104         break;
2105     }
2106 }
2107
2108 void client_set_state(Client *self, Atom action, long data1, long data2)
2109 {
2110     gboolean shaded = self->shaded;
2111     gboolean fullscreen = self->fullscreen;
2112     gboolean max_horz = self->max_horz;
2113     gboolean max_vert = self->max_vert;
2114     int i;
2115
2116     if (!(action == prop_atoms.net_wm_state_add ||
2117           action == prop_atoms.net_wm_state_remove ||
2118           action == prop_atoms.net_wm_state_toggle))
2119         /* an invalid action was passed to the client message, ignore it */
2120         return;
2121
2122     for (i = 0; i < 2; ++i) {
2123         Atom state = i == 0 ? data1 : data2;
2124
2125         if (!state) continue;
2126
2127         /* if toggling, then pick whether we're adding or removing */
2128         if (action == prop_atoms.net_wm_state_toggle) {
2129             if (state == prop_atoms.net_wm_state_modal)
2130                 action = self->modal ? prop_atoms.net_wm_state_remove :
2131                     prop_atoms.net_wm_state_add;
2132             else if (state == prop_atoms.net_wm_state_maximized_vert)
2133                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
2134                     prop_atoms.net_wm_state_add;
2135             else if (state == prop_atoms.net_wm_state_maximized_horz)
2136                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
2137                     prop_atoms.net_wm_state_add;
2138             else if (state == prop_atoms.net_wm_state_shaded)
2139                 action = self->shaded ? prop_atoms.net_wm_state_remove :
2140                     prop_atoms.net_wm_state_add;
2141             else if (state == prop_atoms.net_wm_state_skip_taskbar)
2142                 action = self->skip_taskbar ?
2143                     prop_atoms.net_wm_state_remove :
2144                     prop_atoms.net_wm_state_add;
2145             else if (state == prop_atoms.net_wm_state_skip_pager)
2146                 action = self->skip_pager ?
2147                     prop_atoms.net_wm_state_remove :
2148                     prop_atoms.net_wm_state_add;
2149             else if (state == prop_atoms.net_wm_state_fullscreen)
2150                 action = self->fullscreen ?
2151                     prop_atoms.net_wm_state_remove :
2152                     prop_atoms.net_wm_state_add;
2153             else if (state == prop_atoms.net_wm_state_above)
2154                 action = self->above ? prop_atoms.net_wm_state_remove :
2155                     prop_atoms.net_wm_state_add;
2156             else if (state == prop_atoms.net_wm_state_below)
2157                 action = self->below ? prop_atoms.net_wm_state_remove :
2158                     prop_atoms.net_wm_state_add;
2159         }
2160
2161         if (action == prop_atoms.net_wm_state_add) {
2162             if (state == prop_atoms.net_wm_state_modal) {
2163                 /* XXX raise here or something? */
2164                 self->modal = TRUE;
2165             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2166                 max_vert = TRUE;
2167             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2168                 max_horz = TRUE;
2169             } else if (state == prop_atoms.net_wm_state_shaded) {
2170                 shaded = TRUE;
2171             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2172                 self->skip_taskbar = TRUE;
2173             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2174                 self->skip_pager = TRUE;
2175             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2176                 fullscreen = TRUE;
2177             } else if (state == prop_atoms.net_wm_state_above) {
2178                 self->above = TRUE;
2179             } else if (state == prop_atoms.net_wm_state_below) {
2180                 self->below = TRUE;
2181             }
2182
2183         } else { /* action == prop_atoms.net_wm_state_remove */
2184             if (state == prop_atoms.net_wm_state_modal) {
2185                 self->modal = FALSE;
2186             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2187                 max_vert = FALSE;
2188             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2189                 max_horz = FALSE;
2190             } else if (state == prop_atoms.net_wm_state_shaded) {
2191                 shaded = FALSE;
2192             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2193                 self->skip_taskbar = FALSE;
2194             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2195                 self->skip_pager = FALSE;
2196             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2197                 fullscreen = FALSE;
2198             } else if (state == prop_atoms.net_wm_state_above) {
2199                 self->above = FALSE;
2200             } else if (state == prop_atoms.net_wm_state_below) {
2201                 self->below = FALSE;
2202             }
2203         }
2204     }
2205     if (max_horz != self->max_horz || max_vert != self->max_vert) {
2206         if (max_horz != self->max_horz && max_vert != self->max_vert) {
2207             /* toggling both */
2208             if (max_horz == max_vert) { /* both going the same way */
2209                 client_maximize(self, max_horz, 0, TRUE);
2210             } else {
2211                 client_maximize(self, max_horz, 1, TRUE);
2212                 client_maximize(self, max_vert, 2, TRUE);
2213             }
2214         } else {
2215             /* toggling one */
2216             if (max_horz != self->max_horz)
2217                 client_maximize(self, max_horz, 1, TRUE);
2218             else
2219                 client_maximize(self, max_vert, 2, TRUE);
2220         }
2221     }
2222     /* change fullscreen state before shading, as it will affect if the window
2223        can shade or not */
2224     if (fullscreen != self->fullscreen)
2225         client_fullscreen(self, fullscreen, TRUE);
2226     if (shaded != self->shaded)
2227         client_shade(self, shaded);
2228     client_calc_layer(self);
2229     client_change_state(self); /* change the hint to reflect these changes */
2230 }
2231
2232 Client *client_focus_target(Client *self)
2233 {
2234     Client *child;
2235
2236     /* if we have a modal child, then focus it, not us */
2237     child = client_search_modal_child(self);
2238     if (child) return child;
2239     return self;
2240 }
2241
2242 gboolean client_can_focus(Client *self)
2243 {
2244     /* same code as in client_focus */
2245
2246     /* choose the correct target */
2247     self = client_focus_target(self);
2248
2249     if (!self->frame->visible)
2250         return FALSE;
2251
2252     if (!((self->can_focus || self->focus_notify) &&
2253           (self->desktop == screen_desktop ||
2254            self->desktop == DESKTOP_ALL) &&
2255           !self->iconic))
2256         return FALSE;
2257     return TRUE;
2258 }
2259
2260 gboolean client_focus(Client *self)
2261 {
2262     XEvent ev;
2263
2264     /* same code as in client_can_focus */
2265
2266     /* choose the correct target */
2267     self = client_focus_target(self);
2268
2269     if (!self->frame->visible) {
2270         /* update the focus lists */
2271         focus_order_to_top(self);
2272         return FALSE;
2273     }
2274
2275     if (!((self->can_focus || self->focus_notify) &&
2276           (self->desktop == screen_desktop ||
2277            self->desktop == DESKTOP_ALL) &&
2278           !self->iconic))
2279         return FALSE;
2280
2281     /* do a check to see if the window has already been unmapped or destroyed
2282        do this intelligently while watching out for unmaps we've generated
2283        (ignore_unmaps > 0) */
2284     if (XCheckTypedWindowEvent(ob_display, self->window,
2285                                DestroyNotify, &ev)) {
2286         XPutBackEvent(ob_display, &ev);
2287         return FALSE;
2288     }
2289     while (XCheckTypedWindowEvent(ob_display, self->window,
2290                                   UnmapNotify, &ev)) {
2291         if (self->ignore_unmaps) {
2292             self->ignore_unmaps--;
2293         } else {
2294             XPutBackEvent(ob_display, &ev);
2295             return FALSE;
2296         }
2297     }
2298
2299     if (self->can_focus)
2300         /* RevertToPointerRoot causes much more headache than RevertToNone, so
2301            I choose to use it always, hopefully to find errors quicker, if any
2302            are left. (I hate X. I hate focus events.) */
2303         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
2304                        event_lasttime);
2305
2306     if (self->focus_notify) {
2307         XEvent ce;
2308         ce.xclient.type = ClientMessage;
2309         ce.xclient.message_type = prop_atoms.wm_protocols;
2310         ce.xclient.display = ob_display;
2311         ce.xclient.window = self->window;
2312         ce.xclient.format = 32;
2313         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
2314         ce.xclient.data.l[1] = event_lasttime;
2315         ce.xclient.data.l[2] = 0l;
2316         ce.xclient.data.l[3] = 0l;
2317         ce.xclient.data.l[4] = 0l;
2318         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2319     }
2320
2321 #ifdef DEBUG_FOCUS
2322     g_message("%sively focusing %lx at %d", (self->can_focus ? "act" : "pass"),
2323               self->window, (int)
2324               event_lasttime);
2325 #endif
2326
2327     /* Cause the FocusIn to come back to us. Important for desktop switches,
2328        since otherwise we'll have no FocusIn on the queue and send it off to
2329        the focus_backup. */
2330     XSync(ob_display, FALSE);
2331     return TRUE;
2332 }
2333
2334 void client_unfocus(Client *self)
2335 {
2336     g_assert(focus_client == self);
2337 #ifdef DEBUG_FOCUS
2338     g_message("client_unfocus for %lx", self->window);
2339 #endif
2340     focus_fallback(Fallback_Unfocusing);
2341 }
2342
2343 void client_activate(Client *self)
2344 {
2345     if (client_normal(self) && screen_showing_desktop)
2346         screen_show_desktop(FALSE);
2347     if (self->iconic)
2348         client_iconify(self, FALSE, TRUE);
2349     else if (!self->frame->visible)
2350         /* if its not visible for other reasons, then don't mess
2351            with it */
2352         return;
2353     if (self->shaded)
2354         client_shade(self, FALSE);
2355     client_focus(self);
2356     stacking_raise(CLIENT_AS_WINDOW(self));
2357 }
2358
2359 gboolean client_focused(Client *self)
2360 {
2361     return self == focus_client;
2362 }
2363
2364 Icon *client_icon(Client *self, int w, int h)
2365 {
2366     int i;
2367     /* si is the smallest image >= req */
2368     /* li is the largest image < req */
2369     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
2370
2371     if (!self->nicons) return NULL;
2372
2373     for (i = 0; i < self->nicons; ++i) {
2374         size = self->icons[i].width * self->icons[i].height;
2375         if (size < smallest && size >= (unsigned)(w * h)) {
2376             smallest = size;
2377             si = i;
2378         }
2379         if (size > largest && size <= (unsigned)(w * h)) {
2380             largest = size;
2381             li = i;
2382         }
2383     }
2384     if (largest == 0) /* didnt find one smaller than the requested size */
2385         return &self->icons[si];
2386     return &self->icons[li];
2387 }
2388
2389 /* this be mostly ripped from fvwm */
2390 Client *client_find_directional(Client *c, Direction dir)
2391 {
2392     int my_cx, my_cy, his_cx, his_cy;
2393     int offset = 0;
2394     int distance = 0;
2395     int score, best_score;
2396     Client *best_client, *cur;
2397     GList *it;
2398
2399     if(!client_list)
2400         return NULL;
2401
2402     /* first, find the centre coords of the currently focused window */
2403     my_cx = c->frame->area.x + c->frame->area.width / 2;
2404     my_cy = c->frame->area.y + c->frame->area.height / 2;
2405
2406     best_score = -1;
2407     best_client = NULL;
2408
2409     for(it = g_list_first(client_list); it; it = it->next) {
2410         cur = it->data;
2411
2412         /* the currently selected window isn't interesting */
2413         if(cur == c)
2414             continue;
2415         if (!client_normal(cur))
2416             continue;
2417         if(c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL)
2418             continue;
2419         if(cur->iconic)
2420             continue;
2421         if(client_focus_target(cur) == cur &&
2422            !(cur->can_focus || cur->focus_notify))
2423             continue;
2424
2425         /* find the centre coords of this window, from the
2426          * currently focused window's point of view */
2427         his_cx = (cur->frame->area.x - my_cx)
2428             + cur->frame->area.width / 2;
2429         his_cy = (cur->frame->area.y - my_cy)
2430             + cur->frame->area.height / 2;
2431
2432         if(dir > 3) {
2433             int tx;
2434             /* Rotate the diagonals 45 degrees counterclockwise.
2435              * To do this, multiply the matrix /+h +h\ with the
2436              * vector (x y).                   \-h +h/
2437              * h = sqrt(0.5). We can set h := 1 since absolute
2438              * distance doesn't matter here. */
2439             tx = his_cx + his_cy;
2440             his_cy = -his_cx + his_cy;
2441             his_cx = tx;
2442         }
2443
2444         switch(dir) {
2445         case Direction_North :
2446         case Direction_South :
2447         case Direction_NorthEast :
2448         case Direction_SouthWest :
2449             offset = (his_cx < 0) ? -his_cx : his_cx;
2450             distance = (dir == Direction_North || dir == Direction_NorthEast) ?
2451                 -his_cy : his_cy;
2452             break;
2453         case Direction_East :
2454         case Direction_West :
2455         case Direction_SouthEast :
2456         case Direction_NorthWest :
2457             offset = (his_cy < 0) ? -his_cy : his_cy;
2458             distance = (dir == Direction_West || dir == Direction_NorthWest) ?
2459                 -his_cx : his_cx;
2460             break;
2461         }
2462
2463         /* the target must be in the requested direction */
2464         if(distance <= 0)
2465             continue;
2466
2467         /* Calculate score for this window.  The smaller the better. */
2468         score = distance + offset;
2469
2470         /* windows more than 45 degrees off the direction are
2471          * heavily penalized and will only be chosen if nothing
2472          * else within a million pixels */
2473         if(offset > distance)
2474             score += 1000000;
2475
2476         if(best_score == -1 || score < best_score)
2477             best_client = cur,
2478                 best_score = score;
2479     }
2480
2481     return best_client;
2482 }
2483
2484 void client_set_layer(Client *self, int layer)
2485 {
2486     if (layer < 0) {
2487         self->below = TRUE;
2488         self->above = FALSE;
2489     } else if (layer == 0) {
2490         self->below = self->above = FALSE;
2491     } else {
2492         self->below = FALSE;
2493         self->above = TRUE;
2494     }
2495     client_calc_layer(self);
2496     client_change_state(self); /* reflect this in the state hints */
2497 }