openbox/client.c

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