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 "engine.h"
   7 #include "event.h"
   8 #include "grab.h"
   9 #include "focus.h"
  10 #include "stacking.h"
  11 #include "dispatch.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 gulong  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_GET32U(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_SET32A(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 = engine_frame_new();
 210
 211     engine_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) {
 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     engine_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     engine_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     gulong *state;
 560     gulong 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_GET32U(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     unsigned long num;
 673     unsigned long *hints;
 674
 675     self->mwmhints.flags = 0; /* default to none */
 676
 677     if (PROP_GET32U(self->window, motif_wm_hints, motif_wm_hints, hints, num)) {
 678         if (num >= MWM_ELEMENTS) {
 679             self->mwmhints.flags = hints[0];
 680             self->mwmhints.functions = hints[1];
 681             self->mwmhints.decorations = hints[2];
 682         }
 683         g_free(hints);
 684     }
 685 }
 686
 687 void client_get_type(Client *self)
 688 {
 689     gulong *val, num, i;
 690
 691     self->type = -1;
 692
 693     if (PROP_GET32U(self->window, net_wm_window_type, atom, val, num)) {
 694         /* use the first value that we know about in the array */
 695         for (i = 0; i < num; ++i) {
 696             if (val[i] == prop_atoms.net_wm_window_type_desktop)
 697                 self->type = Type_Desktop;
 698             else if (val[i] == prop_atoms.net_wm_window_type_dock)
 699                 self->type = Type_Dock;
 700             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
 701                 self->type = Type_Toolbar;
 702             else if (val[i] == prop_atoms.net_wm_window_type_menu)
 703                 self->type = Type_Menu;
 704             else if (val[i] == prop_atoms.net_wm_window_type_utility)
 705                 self->type = Type_Utility;
 706             else if (val[i] == prop_atoms.net_wm_window_type_splash)
 707                 self->type = Type_Splash;
 708             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
 709                 self->type = Type_Dialog;
 710             else if (val[i] == prop_atoms.net_wm_window_type_normal)
 711                 self->type = Type_Normal;
 712             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
 713                 /* prevent this window from getting any decor or
 714                    functionality */
 715                 self->mwmhints.flags &= (MwmFlag_Functions |
 716                                          MwmFlag_Decorations);
 717                 self->mwmhints.decorations = 0;
 718                 self->mwmhints.functions = 0;
 719             }
 720             if (self->type != (WindowType) -1)
 721                 break; /* grab the first legit type */
 722         }
 723         g_free(val);
 724     }
 725
 726     if (self->type == (WindowType) -1) {
 727         /*the window type hint was not set, which means we either classify
 728           ourself as a normal window or a dialog, depending on if we are a
 729           transient. */
 730         if (self->transient)
 731             self->type = Type_Dialog;
 732         else
 733             self->type = Type_Normal;
 734     }
 735 }
 736
 737 void client_update_protocols(Client *self)
 738 {
 739     Atom *proto;
 740     gulong num_return, i;
 741
 742     self->focus_notify = FALSE;
 743     self->delete_window = FALSE;
 744
 745     if (PROP_GET32U(self->window, wm_protocols, atom, proto, num_return)) {
 746         for (i = 0; i < num_return; ++i) {
 747             if (proto[i] == prop_atoms.wm_delete_window) {
 748                 /* this means we can request the window to close */
 749                 self->delete_window = TRUE;
 750             } else if (proto[i] == prop_atoms.wm_take_focus)
 751                 /* if this protocol is requested, then the window will be
 752                    notified whenever we want it to receive focus */
 753                 self->focus_notify = TRUE;
 754         }
 755         g_free(proto);
 756     }
 757 }
 758
 759 static void client_get_gravity(Client *self)
 760 {
 761     XWindowAttributes wattrib;
 762     Status ret;
 763
 764     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 765     g_assert(ret != BadWindow);
 766     self->gravity = wattrib.win_gravity;
 767 }
 768
 769 void client_update_normal_hints(Client *self)
 770 {
 771     XSizeHints size;
 772     long ret;
 773     int oldgravity = self->gravity;
 774
 775     /* defaults */
 776     self->min_ratio = 0.0f;
 777     self->max_ratio = 0.0f;
 778     SIZE_SET(self->size_inc, 1, 1);
 779     SIZE_SET(self->base_size, 0, 0);
 780     SIZE_SET(self->min_size, 0, 0);
 781     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
 782
 783     /* get the hints from the window */
 784     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
 785         self->positioned = !!(size.flags & (PPosition|USPosition));
 786
 787         if (size.flags & PWinGravity) {
 788             self->gravity = size.win_gravity;
 789
 790             /* if the client has a frame, i.e. has already been mapped and
 791                is changing its gravity */
 792             if (self->frame && self->gravity != oldgravity) {
 793                 /* move our idea of the client's position based on its new
 794                    gravity */
 795                 self->area.x = self->frame->area.x;
 796                 self->area.y = self->frame->area.y;
 797                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
 798             }
 799         }
 800
 801         if (size.flags & PAspect) {
 802             if (size.min_aspect.y)
 803                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
 804             if (size.max_aspect.y)
 805                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
 806         }
 807
 808         if (size.flags & PMinSize)
 809             SIZE_SET(self->min_size, size.min_width, size.min_height);
 810
 811         if (size.flags & PMaxSize)
 812             SIZE_SET(self->max_size, size.max_width, size.max_height);
 813
 814         if (size.flags & PBaseSize)
 815             SIZE_SET(self->base_size, size.base_width, size.base_height);
 816
 817         if (size.flags & PResizeInc)
 818             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
 819     }
 820 }
 821
 822 void client_setup_decor_and_functions(Client *self)
 823 {
 824     /* start with everything (cept fullscreen) */
 825     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
 826         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize |
 827         Decor_Shade;
 828     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
 829         Func_Shade;
 830     if (self->delete_window) {
 831         self->decorations |= Decor_Close;
 832         self->functions |= Func_Close;
 833     }
 834
 835     if (!(self->min_size.width < self->max_size.width ||
 836           self->min_size.height < self->max_size.height)) {
 837         self->decorations &= ~(Decor_Maximize | Decor_Handle);
 838         self->functions &= ~(Func_Resize | Func_Maximize);
 839     }
 840
 841     switch (self->type) {
 842     case Type_Normal:
 843         /* normal windows retain all of the possible decorations and
 844            functionality, and are the only windows that you can fullscreen */
 845         self->functions |= Func_Fullscreen;
 846         break;
 847
 848     case Type_Dialog:
 849     case Type_Utility:
 850         /* these windows cannot be maximized */
 851         self->decorations &= ~Decor_Maximize;
 852         self->functions &= ~Func_Maximize;
 853         break;
 854
 855     case Type_Menu:
 856     case Type_Toolbar:
 857         /* these windows get less functionality */
 858         self->decorations &= ~(Decor_Iconify | Decor_Handle);
 859         self->functions &= ~(Func_Iconify | Func_Resize);
 860         break;
 861
 862     case Type_Desktop:
 863     case Type_Dock:
 864     case Type_Splash:
 865         /* none of these windows are manipulated by the window manager */
 866         self->decorations = 0;
 867         self->functions = 0;
 868         break;
 869     }
 870
 871     /* Mwm Hints are applied subtractively to what has already been chosen for
 872        decor and functionality */
 873     if (self->mwmhints.flags & MwmFlag_Decorations) {
 874         if (! (self->mwmhints.decorations & MwmDecor_All)) {
 875             if (! (self->mwmhints.decorations & MwmDecor_Border))
 876                 self->decorations &= ~Decor_Border;
 877             if (! (self->mwmhints.decorations & MwmDecor_Handle))
 878                 self->decorations &= ~Decor_Handle;
 879             if (! (self->mwmhints.decorations & MwmDecor_Title))
 880                 self->decorations &= ~Decor_Titlebar;
 881             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
 882                 self->decorations &= ~Decor_Iconify;
 883             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
 884                 self->decorations &= ~Decor_Maximize;
 885         }
 886     }
 887
 888     if (self->mwmhints.flags & MwmFlag_Functions) {
 889         if (! (self->mwmhints.functions & MwmFunc_All)) {
 890             if (! (self->mwmhints.functions & MwmFunc_Resize))
 891                 self->functions &= ~Func_Resize;
 892             if (! (self->mwmhints.functions & MwmFunc_Move))
 893                 self->functions &= ~Func_Move;
 894             if (! (self->mwmhints.functions & MwmFunc_Iconify))
 895                 self->functions &= ~Func_Iconify;
 896             if (! (self->mwmhints.functions & MwmFunc_Maximize))
 897                 self->functions &= ~Func_Maximize;
 898             /* dont let mwm hints kill the close button
 899                if (! (self->mwmhints.functions & MwmFunc_Close))
 900                self->functions &= ~Func_Close; */
 901         }
 902     }
 903
 904     /* can't maximize without moving/resizing */
 905     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
 906         self->functions &= ~(Func_Maximize | Func_Fullscreen);
 907
 908     /* finally, user specified disabled decorations are applied to subtract
 909        decorations */
 910     if (self->disabled_decorations & Decor_Titlebar)
 911         self->decorations &= ~Decor_Titlebar;
 912     if (self->disabled_decorations & Decor_Handle)
 913         self->decorations &= ~Decor_Handle;
 914     if (self->disabled_decorations & Decor_Border)
 915         self->decorations &= ~Decor_Border;
 916     if (self->disabled_decorations & Decor_Iconify)
 917         self->decorations &= ~Decor_Iconify;
 918     if (self->disabled_decorations & Decor_Maximize)
 919         self->decorations &= ~Decor_Maximize;
 920     if (self->disabled_decorations & Decor_AllDesktops)
 921         self->decorations &= ~Decor_AllDesktops;
 922     if (self->disabled_decorations & Decor_Shade)
 923         self->decorations &= ~Decor_Shade;
 924     if (self->disabled_decorations & Decor_Close)
 925         self->decorations &= ~Decor_Close;
 926
 927     /* if we don't have a titlebar, then we cannot shade! */
 928     if (!(self->decorations & Decor_Titlebar))
 929         self->functions &= ~Func_Shade;
 930
 931     client_change_allowed_actions(self);
 932
 933     if (self->frame) {
 934         /* change the decors on the frame, and with more/less decorations,
 935            we may also need to be repositioned */
 936         engine_frame_adjust_area(self->frame, TRUE, TRUE);
 937         /* with new decor, the window's maximized size may change */
 938         client_remaximize(self);
 939     }
 940 }
 941
 942 static void client_change_allowed_actions(Client *self)
 943 {
 944     Atom actions[9];
 945     int num = 0;
 946
 947     actions[num++] = prop_atoms.net_wm_action_change_desktop;
 948
 949     if (self->functions & Func_Shade)
 950         actions[num++] = prop_atoms.net_wm_action_shade;
 951     if (self->functions & Func_Close)
 952         actions[num++] = prop_atoms.net_wm_action_close;
 953     if (self->functions & Func_Move)
 954         actions[num++] = prop_atoms.net_wm_action_move;
 955     if (self->functions & Func_Iconify)
 956         actions[num++] = prop_atoms.net_wm_action_minimize;
 957     if (self->functions & Func_Resize)
 958         actions[num++] = prop_atoms.net_wm_action_resize;
 959     if (self->functions & Func_Fullscreen)
 960         actions[num++] = prop_atoms.net_wm_action_fullscreen;
 961     if (self->functions & Func_Maximize) {
 962         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
 963         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
 964     }
 965
 966     PROP_SET32A(self->window, net_wm_allowed_actions, atom, actions, num);
 967
 968     /* make sure the window isn't breaking any rules now */
 969
 970     if (!(self->functions & Func_Shade) && self->shaded) {
 971         if (self->frame) client_shade(self, FALSE);
 972         else self->shaded = FALSE;
 973     }
 974     if (!(self->functions & Func_Iconify) && self->iconic) {
 975         g_message("UNSETTING ICONIC");
 976         if (self->frame) client_iconify(self, FALSE, TRUE);
 977         else self->iconic = FALSE;
 978     }
 979     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
 980         if (self->frame) client_fullscreen(self, FALSE, TRUE);
 981         else self->fullscreen = FALSE;
 982     }
 983     if (!(self->functions & Func_Maximize) && (self->max_horz ||
 984                                                self->max_vert)) {
 985         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
 986         else self->max_vert = self->max_horz = FALSE;
 987     }
 988 }
 989
 990 void client_remaximize(Client *self)
 991 {
 992     int dir;
 993     if (self->max_horz && self->max_vert)
 994         dir = 0;
 995     else if (self->max_horz)
 996         dir = 1;
 997     else if (self->max_vert)
 998         dir = 2;
 999     else
1000         return; /* not maximized */
1001     self->max_horz = self->max_vert = FALSE;
1002     client_maximize(self, TRUE, dir, FALSE);
1003 }
1004
1005 void client_update_wmhints(Client *self)
1006 {
1007     XWMHints *hints;
1008     gboolean ur = FALSE;
1009
1010     /* assume a window takes input if it doesnt specify */
1011     self->can_focus = TRUE;
1012
1013     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1014         if (hints->flags & InputHint)
1015             self->can_focus = hints->input;
1016
1017         /* only do this when first managing the window *AND* when we aren't
1018            starting up! */
1019         if (ob_state != State_Starting && self->frame == NULL)
1020             if (hints->flags & StateHint)
1021                 self->iconic = hints->initial_state == IconicState;
1022
1023         if (hints->flags & XUrgencyHint)
1024             ur = TRUE;
1025
1026         if (!(hints->flags & WindowGroupHint))
1027             hints->window_group = None; /* no group */
1028         /* did the group state change? */
1029         if (hints->window_group != (self->group ? self->group->leader : None)){
1030             /* remove from the old group if there was one */
1031             if (self->group != NULL)
1032                 group_remove(self->group, self);
1033             if (hints->window_group != None)
1034                 self->group = group_add(hints->window_group, self);
1035
1036             /* because the self->transient flag wont change from this call,
1037                we don't need to update the window's type and such, only its
1038                transient_for, and the transients lists of other windows in the
1039                group may be affected */
1040             client_update_transient_for(self);
1041         }
1042
1043         if (hints->flags & IconPixmapHint) {
1044             client_update_kwm_icon(self);
1045             /* try get the kwm icon first, this is a fallback only */
1046             if (self->pixmap_icon == None) {
1047                 self->pixmap_icon = hints->icon_pixmap;
1048                 if (hints->flags & IconMaskHint)
1049                     self->pixmap_icon_mask = hints->icon_mask;
1050                 else
1051                     self->pixmap_icon_mask = None;
1052
1053                 if (self->frame)
1054                     engine_frame_adjust_icon(self->frame);
1055             }
1056         }
1057
1058         XFree(hints);
1059     }
1060
1061     if (ur != self->urgent) {
1062         self->urgent = ur;
1063         g_message("Urgent Hint for 0x%lx: %s", self->window,
1064                   ur ? "ON" : "OFF");
1065         /* fire the urgent callback if we're mapped, otherwise, wait until
1066            after we're mapped */
1067         if (self->frame)
1068             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1069     }
1070 }
1071
1072 void client_update_title(Client *self)
1073 {
1074     gchar *data = NULL;
1075
1076     g_free(self->title);
1077
1078     /* try netwm */
1079     if (!PROP_GETS(self->window, net_wm_name, utf8, data)) {
1080         /* try old x stuff */
1081         if (PROP_GETS(self->window, wm_name, string, data)) {
1082             /* convert it to UTF-8 */
1083             gsize r, w;
1084             gchar *u;
1085
1086             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
1087             if (u == NULL) {
1088                 g_warning("Unable to convert string to UTF-8");
1089             } else {
1090                 g_free(data);
1091                 data = u;
1092             }
1093         }
1094         if (data == NULL)
1095             data = g_strdup("Unnamed Window");
1096
1097         PROP_SETS(self->window, net_wm_visible_name, utf8, data);
1098     }
1099
1100     self->title = data;
1101
1102     if (self->frame)
1103         engine_frame_adjust_title(self->frame);
1104 }
1105
1106 void client_update_icon_title(Client *self)
1107 {
1108     gchar *data = NULL;
1109
1110     g_free(self->icon_title);
1111
1112     /* try netwm */
1113     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, data)) {
1114         /* try old x stuff */
1115         if (PROP_GETS(self->window, wm_icon_name, string, data)) {
1116             /* convert it to UTF-8 */
1117             gsize r, w;
1118             gchar *u;
1119
1120             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
1121             if (u == NULL) {
1122                 g_warning("Unable to convert string to UTF-8");
1123             } else {
1124                 g_free(data);
1125                 data = u;
1126             }
1127         }
1128         if (data == NULL)
1129             data = g_strdup("Unnamed Window");
1130
1131         PROP_SETS(self->window, net_wm_visible_icon_name, utf8, data);
1132     }
1133
1134     self->icon_title = data;
1135 }
1136
1137 void client_update_class(Client *self)
1138 {
1139     GPtrArray *data;
1140     gchar *s;
1141     guint i;
1142
1143     if (self->name) g_free(self->name);
1144     if (self->class) g_free(self->class);
1145     if (self->role) g_free(self->role);
1146
1147     self->name = self->class = self->role = NULL;
1148
1149     data = g_ptr_array_new();
1150
1151     if (PROP_GETSA(self->window, wm_class, string, data)) {
1152         if (data->len > 0)
1153             self->name = g_strdup(g_ptr_array_index(data, 0));
1154         if (data->len > 1)
1155             self->class = g_strdup(g_ptr_array_index(data, 1));
1156     }
1157
1158     for (i = 0; i < data->len; ++i)
1159         g_free(g_ptr_array_index(data, i));
1160     g_ptr_array_free(data, TRUE);
1161
1162     if (PROP_GETS(self->window, wm_window_role, string, s))
1163         self->role = g_strdup(s);
1164
1165     if (self->name == NULL) self->name = g_strdup("");
1166     if (self->class == NULL) self->class = g_strdup("");
1167     if (self->role == NULL) self->role = g_strdup("");
1168 }
1169
1170 void client_update_strut(Client *self)
1171 {
1172     gulong *data;
1173
1174     if (PROP_GET32A(self->window, net_wm_strut, cardinal, data, 4)) {
1175         STRUT_SET(self->strut, data[0], data[2], data[1], data[3]);
1176         g_free(data);
1177     } else
1178         STRUT_SET(self->strut, 0, 0, 0, 0);
1179
1180     /* updating here is pointless while we're being mapped cuz we're not in
1181        the client list yet */
1182     if (self->frame)
1183         screen_update_struts();
1184 }
1185
1186 void client_update_icons(Client *self)
1187 {
1188     unsigned long num;
1189     unsigned long *data;
1190     unsigned long w, h, i;
1191     int j;
1192
1193     for (j = 0; j < self->nicons; ++j)
1194         g_free(self->icons[j].data);
1195     if (self->nicons > 0)
1196         g_free(self->icons);
1197     self->nicons = 0;
1198
1199     if (PROP_GET32U(self->window, net_wm_icon, cardinal, data, num)) {
1200         /* figure out how many valid icons are in here */
1201         i = 0;
1202         while (num - i > 2) {
1203             w = data[i++];
1204             h = data[i++];
1205             i += w * h;
1206             if (i > num) break;
1207             ++self->nicons;
1208         }
1209
1210         self->icons = g_new(Icon, self->nicons);
1211
1212         /* store the icons */
1213         i = 0;
1214         for (j = 0; j < self->nicons; ++j) {
1215             w = self->icons[j].width = data[i++];
1216             h = self->icons[j].height = data[i++];
1217             self->icons[j].data =
1218                 g_memdup(&data[i], w * h * sizeof(gulong));
1219             i += w * h;
1220             g_assert(i <= num);
1221         }
1222
1223         g_free(data);
1224     }
1225
1226     if (self->frame)
1227         engine_frame_adjust_icon(self->frame);
1228 }
1229
1230 void client_update_kwm_icon(Client *self)
1231 {
1232     Pixmap *data;
1233
1234     if (PROP_GET32A(self->window, kwm_win_icon, kwm_win_icon, data, 2)) {
1235         self->pixmap_icon = data[0];
1236         self->pixmap_icon_mask = data[1];
1237         g_free(data);
1238     } else {
1239         self->pixmap_icon = self->pixmap_icon_mask = None;
1240     }
1241     if (self->frame)
1242         engine_frame_adjust_icon(self->frame);
1243 }
1244
1245 static void client_change_state(Client *self)
1246 {
1247     unsigned long state[2];
1248     Atom netstate[10];
1249     int num;
1250
1251     state[0] = self->wmstate;
1252     state[1] = None;
1253     PROP_SET32A(self->window, wm_state, wm_state, state, 2);
1254
1255     num = 0;
1256     if (self->modal)
1257         netstate[num++] = prop_atoms.net_wm_state_modal;
1258     if (self->shaded)
1259         netstate[num++] = prop_atoms.net_wm_state_shaded;
1260     if (self->iconic)
1261         netstate[num++] = prop_atoms.net_wm_state_hidden;
1262     if (self->skip_taskbar)
1263         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1264     if (self->skip_pager)
1265         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1266     if (self->fullscreen)
1267         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1268     if (self->max_vert)
1269         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1270     if (self->max_horz)
1271         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1272     if (self->above)
1273         netstate[num++] = prop_atoms.net_wm_state_above;
1274     if (self->below)
1275         netstate[num++] = prop_atoms.net_wm_state_below;
1276     PROP_SET32A(self->window, net_wm_state, atom, netstate, num);
1277
1278     client_calc_layer(self);
1279
1280     if (self->frame)
1281         engine_frame_adjust_state(self->frame);
1282 }
1283
1284 static Client *search_focus_tree(Client *node, Client *skip)
1285 {
1286     GSList *it;
1287     Client *ret;
1288
1289     for (it = node->transients; it != NULL; it = it->next) {
1290         Client *c = it->data;
1291         if (c == skip) continue; /* circular? */
1292         if ((ret = search_focus_tree(c, skip))) return ret;
1293         if (client_focused(c)) return c;
1294     }
1295     return NULL;
1296 }
1297
1298 void client_calc_layer(Client *self)
1299 {
1300     StackLayer l;
1301     gboolean fs;
1302     Client *c;
1303
1304     /* are we fullscreen, or do we have a fullscreen transient parent? */
1305     c = self;
1306     fs = FALSE;
1307     while (c && c != TRAN_GROUP) { /* XXX do smthng with the TRAN_GROUP case?*/
1308         if (c->fullscreen) {
1309             fs = TRUE;
1310             break;
1311         }
1312         c = c->transient_for;
1313     }
1314     if (!fs && self->fullscreen) {
1315         /* is one of our transients focused? */
1316         c = search_focus_tree(self, self);
1317         if (c != NULL) fs = TRUE;
1318     }
1319
1320     if (self->iconic) l = Layer_Icon;
1321     else if (fs) l = Layer_Fullscreen;
1322     else if (self->type == Type_Desktop) l = Layer_Desktop;
1323     else if (self->type == Type_Dock) {
1324         if (!self->below) l = Layer_Top;
1325         else l = Layer_Normal;
1326     }
1327     else if (self->above) l = Layer_Above;
1328     else if (self->below) l = Layer_Below;
1329     else l = Layer_Normal;
1330
1331     if (l != self->layer) {
1332         self->layer = l;
1333         if (self->frame)
1334             stacking_raise(self);
1335     }
1336 }
1337
1338 gboolean client_should_show(Client *self)
1339 {
1340     if (self->iconic) return FALSE;
1341     else if (!(self->desktop == screen_desktop ||
1342                self->desktop == DESKTOP_ALL)) return FALSE;
1343     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1344
1345     return TRUE;
1346 }
1347
1348 static void client_showhide(Client *self)
1349 {
1350
1351     if (client_should_show(self))
1352         engine_frame_show(self->frame);
1353     else
1354         engine_frame_hide(self->frame);
1355 }
1356
1357 gboolean client_normal(Client *self) {
1358     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1359               self->type == Type_Splash);
1360 }
1361
1362 static void client_apply_startup_state(Client *self)
1363 {
1364     /* these are in a carefully crafted order.. */
1365
1366     if (self->iconic) {
1367         self->iconic = FALSE;
1368         client_iconify(self, TRUE, FALSE);
1369     }
1370     if (self->fullscreen) {
1371         self->fullscreen = FALSE;
1372         client_fullscreen(self, TRUE, FALSE);
1373     }
1374     if (self->shaded) {
1375         self->shaded = FALSE;
1376         client_shade(self, TRUE);
1377     }
1378     if (self->urgent)
1379         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1380
1381     if (self->max_vert && self->max_horz) {
1382         self->max_vert = self->max_horz = FALSE;
1383         client_maximize(self, TRUE, 0, FALSE);
1384     } else if (self->max_vert) {
1385         self->max_vert = FALSE;
1386         client_maximize(self, TRUE, 2, FALSE);
1387     } else if (self->max_horz) {
1388         self->max_horz = FALSE;
1389         client_maximize(self, TRUE, 1, FALSE);
1390     }
1391
1392     /* nothing to do for the other states:
1393        skip_taskbar
1394        skip_pager
1395        modal
1396        above
1397        below
1398     */
1399 }
1400
1401 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1402                       gboolean user, gboolean final)
1403 {
1404     gboolean moved = FALSE, resized = FALSE;
1405
1406     /* gets the frame's position */
1407     frame_client_gravity(self->frame, &x, &y);
1408
1409     /* these positions are frame positions, not client positions */
1410
1411     /* set the size and position if fullscreen */
1412     if (self->fullscreen) {
1413         x = 0;
1414         y = 0;
1415         w = screen_physical_size.width;
1416         h = screen_physical_size.height;
1417     } else {
1418         /* set the size and position if maximized */
1419         if (self->max_horz) {
1420             x = screen_area(self->desktop)->x - self->frame->size.left;
1421             w = screen_area(self->desktop)->width;
1422         }
1423         if (self->max_vert) {
1424             y = screen_area(self->desktop)->y;
1425             h = screen_area(self->desktop)->height -
1426                 self->frame->size.top - self->frame->size.bottom;
1427         }
1428     }
1429
1430     /* gets the client's position */
1431     frame_frame_gravity(self->frame, &x, &y);
1432
1433     /* these override the above states! if you cant move you can't move! */
1434     if (user) {
1435         if (!(self->functions & Func_Move)) {
1436             x = self->area.x;
1437             y = self->area.y;
1438         }
1439         if (!(self->functions & Func_Resize)) {
1440             w = self->area.width;
1441             h = self->area.height;
1442         }
1443     }
1444
1445     if (!(w == self->area.width && h == self->area.height)) {
1446         w -= self->base_size.width;
1447         h -= self->base_size.height;
1448
1449         if (user) {
1450             /* for interactive resizing. have to move half an increment in each
1451                direction. */
1452
1453             /* how far we are towards the next size inc */
1454             int mw = w % self->size_inc.width;
1455             int mh = h % self->size_inc.height;
1456             /* amount to add */
1457             int aw = self->size_inc.width / 2;
1458             int ah = self->size_inc.height / 2;
1459             /* don't let us move into a new size increment */
1460             if (mw + aw >= self->size_inc.width)
1461                 aw = self->size_inc.width - mw - 1;
1462             if (mh + ah >= self->size_inc.height)
1463                 ah = self->size_inc.height - mh - 1;
1464             w += aw;
1465             h += ah;
1466
1467             /* if this is a user-requested resize, then check against min/max
1468                sizes and aspect ratios */
1469
1470             /* smaller than min size or bigger than max size? */
1471             if (w > self->max_size.width) w = self->max_size.width;
1472             if (w < self->min_size.width) w = self->min_size.width;
1473             if (h > self->max_size.height) h = self->max_size.height;
1474             if (h < self->min_size.height) h = self->min_size.height;
1475
1476             /* adjust the height ot match the width for the aspect ratios */
1477             if (self->min_ratio)
1478                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1479             if (self->max_ratio)
1480                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1481         }
1482
1483         /* keep to the increments */
1484         w /= self->size_inc.width;
1485         h /= self->size_inc.height;
1486
1487         /* you cannot resize to nothing */
1488         if (w < 1) w = 1;
1489         if (h < 1) h = 1;
1490
1491         /* store the logical size */
1492         SIZE_SET(self->logical_size, w, h);
1493
1494         w *= self->size_inc.width;
1495         h *= self->size_inc.height;
1496
1497         w += self->base_size.width;
1498         h += self->base_size.height;
1499     }
1500
1501     switch (anchor) {
1502     case Corner_TopLeft:
1503         break;
1504     case Corner_TopRight:
1505         x -= w - self->area.width;
1506         break;
1507     case Corner_BottomLeft:
1508         y -= h - self->area.height;
1509         break;
1510     case Corner_BottomRight:
1511         x -= w - self->area.width;
1512         y -= h - self->area.height;
1513         break;
1514     }
1515
1516     moved = x != self->area.x || y != self->area.y;
1517     resized = w != self->area.width || h != self->area.height;
1518
1519     RECT_SET(self->area, x, y, w, h);
1520
1521     if (resized)
1522         XResizeWindow(ob_display, self->window, w, h);
1523
1524     /* move/resize the frame to match the request */
1525     if (self->frame) {
1526         if (moved || resized)
1527             engine_frame_adjust_area(self->frame, moved, resized);
1528
1529         if (!user || final) {
1530             XEvent event;
1531             event.type = ConfigureNotify;
1532             event.xconfigure.display = ob_display;
1533             event.xconfigure.event = self->window;
1534             event.xconfigure.window = self->window;
1535
1536             /* root window coords with border in mind */
1537             event.xconfigure.x = x - self->border_width +
1538                 self->frame->size.left;
1539             event.xconfigure.y = y - self->border_width +
1540                 self->frame->size.top;
1541
1542             event.xconfigure.width = self->area.width;
1543             event.xconfigure.height = self->area.height;
1544             event.xconfigure.border_width = self->border_width;
1545             event.xconfigure.above = self->frame->plate;
1546             event.xconfigure.override_redirect = FALSE;
1547             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1548                        FALSE, StructureNotifyMask, &event);
1549         }
1550     }
1551 }
1552
1553 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1554 {
1555     int x, y, w, h;
1556
1557     if (!(self->functions & Func_Fullscreen) || /* can't */
1558         self->fullscreen == fs) return;         /* already done */
1559
1560     self->fullscreen = fs;
1561     client_change_state(self); /* change the state hints on the client */
1562
1563     if (fs) {
1564         /* save the functions and remove them */
1565         self->pre_fs_func = self->functions;
1566         self->functions &= (Func_Close | Func_Fullscreen |
1567                             Func_Iconify);
1568         /* save the decorations and remove them */
1569         self->pre_fs_decor = self->decorations;
1570         self->decorations = 0;
1571         if (savearea) {
1572             long dimensions[4];
1573             dimensions[0] = self->area.x;
1574             dimensions[1] = self->area.y;
1575             dimensions[2] = self->area.width;
1576             dimensions[3] = self->area.height;
1577
1578             PROP_SET32A(self->window, openbox_premax, cardinal,
1579                         dimensions, 4);
1580         }
1581
1582         /* these are not actually used cuz client_configure will set them
1583            as appropriate when the window is fullscreened */
1584         x = y = w = h = 0;
1585     } else {
1586         long *dimensions;
1587
1588         self->functions = self->pre_fs_func;
1589         self->decorations = self->pre_fs_decor;
1590
1591         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1592                         dimensions, 4)) {
1593             x = dimensions[0];
1594             y = dimensions[1];
1595             w = dimensions[2];
1596             h = dimensions[3];
1597             g_free(dimensions);
1598         } else {
1599             /* pick some fallbacks... */
1600             x = screen_area(self->desktop)->x +
1601                 screen_area(self->desktop)->width / 4;
1602             y = screen_area(self->desktop)->y +
1603                 screen_area(self->desktop)->height / 4;
1604             w = screen_area(self->desktop)->width / 2;
1605             h = screen_area(self->desktop)->height / 2;
1606         }
1607     }
1608
1609     client_change_allowed_actions(self); /* based on the new _functions */
1610
1611     /* when fullscreening, don't obey things like increments, fill the
1612        screen */
1613     client_configure(self, Corner_TopLeft, x, y, w, h, !fs, TRUE);
1614
1615     /* raise (back) into our stacking layer */
1616     stacking_raise(self);
1617
1618     /* try focus us when we go into fullscreen mode */
1619     client_focus(self);
1620 }
1621
1622 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1623 {
1624     /* move up the transient chain as far as possible first if deiconifying */
1625     if (!iconic)
1626         while (self->transient_for) {
1627             if (self->transient_for != TRAN_GROUP) {
1628                 if (self->transient_for->iconic == iconic)
1629                     break;
1630                 self = self->transient_for;
1631             } else {
1632                 GSList *it;
1633
1634                 /* the check for TRAN_GROUP is to prevent an infinate loop with
1635                    2 transients of the same group at the head of the group's
1636                    members list */
1637                 for (it = self->group->members; it; it = it->next) {
1638                     Client *c = it->data;
1639
1640                     if (c != self && c->transient_for->iconic != iconic &&
1641                         (c->transient_for != TRAN_GROUP ||
1642                          c->group != self->group)) {
1643                         self = it->data;
1644                         break;
1645                     }
1646                 }
1647                 if (it == NULL) break;
1648             }
1649         }
1650
1651     if (self->iconic == iconic) return; /* nothing to do */
1652
1653     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1654               self->window);
1655
1656     self->iconic = iconic;
1657
1658     if (iconic) {
1659         self->wmstate = IconicState;
1660         self->ignore_unmaps++;
1661         /* we unmap the client itself so that we can get MapRequest events,
1662            and because the ICCCM tells us to! */
1663         XUnmapWindow(ob_display, self->window);
1664     } else {
1665         if (curdesk)
1666             client_set_desktop(self, screen_desktop, FALSE);
1667         self->wmstate = self->shaded ? IconicState : NormalState;
1668         XMapWindow(ob_display, self->window);
1669     }
1670     client_change_state(self);
1671     client_showhide(self);
1672     screen_update_struts();
1673
1674     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1675                     self, 0, 0);
1676
1677     /* iconify all transients */
1678     if (self->transients) {
1679         GSList *it;
1680
1681         for (it = self->transients; it != NULL; it = it->next)
1682             if (it->data != self) client_iconify(it->data, iconic, curdesk);
1683     }
1684 }
1685
1686 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1687 {
1688     int x, y, w, h;
1689
1690     g_assert(dir == 0 || dir == 1 || dir == 2);
1691     if (!(self->functions & Func_Maximize)) return; /* can't */
1692
1693     /* check if already done */
1694     if (max) {
1695         if (dir == 0 && self->max_horz && self->max_vert) return;
1696         if (dir == 1 && self->max_horz) return;
1697         if (dir == 2 && self->max_vert) return;
1698     } else {
1699         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1700         if (dir == 1 && !self->max_horz) return;
1701         if (dir == 2 && !self->max_vert) return;
1702     }
1703
1704     /* work with the frame's coords */
1705     x = self->frame->area.x;
1706     y = self->frame->area.y;
1707     w = self->area.width;
1708     h = self->area.height;
1709
1710     if (max) {
1711         if (savearea) {
1712             long dimensions[4];
1713             long *readdim;
1714
1715             dimensions[0] = x;
1716             dimensions[1] = y;
1717             dimensions[2] = w;
1718             dimensions[3] = h;
1719
1720             /* get the property off the window and use it for the dimensions
1721                we are already maxed on */
1722             if (PROP_GET32A(self->window, openbox_premax, cardinal,
1723                             readdim, 4)) {
1724                 if (self->max_horz) {
1725                     dimensions[0] = readdim[0];
1726                     dimensions[2] = readdim[2];
1727                 }
1728                 if (self->max_vert) {
1729                     dimensions[1] = readdim[1];
1730                     dimensions[3] = readdim[3];
1731                 }
1732                 g_free(readdim);
1733             }
1734
1735             PROP_SET32A(self->window, openbox_premax, cardinal,
1736                         dimensions, 4);
1737         }
1738     } else {
1739         long *dimensions;
1740
1741         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1742                         dimensions, 4)) {
1743             if (dir == 0 || dir == 1) { /* horz */
1744                 x = dimensions[0];
1745                 w = dimensions[2];
1746             }
1747             if (dir == 0 || dir == 2) { /* vert */
1748                 y = dimensions[1];
1749                 h = dimensions[3];
1750             }
1751             g_free(dimensions);
1752         } else {
1753             /* pick some fallbacks... */
1754             if (dir == 0 || dir == 1) { /* horz */
1755                 x = screen_area(self->desktop)->x +
1756                     screen_area(self->desktop)->width / 4;
1757                 w = screen_area(self->desktop)->width / 2;
1758             }
1759             if (dir == 0 || dir == 2) { /* vert */
1760                 y = screen_area(self->desktop)->y +
1761                     screen_area(self->desktop)->height / 4;
1762                 h = screen_area(self->desktop)->height / 2;
1763             }
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     engine_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     engine_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     g_message("client_unfocus");
2129     focus_fallback(Fallback_Unfocusing);
2130 }
2131
2132 gboolean client_focused(Client *self)
2133 {
2134     return self == focus_client;
2135 }
2136
2137 Icon *client_icon(Client *self, int w, int h)
2138 {
2139     int i;
2140     /* si is the smallest image >= req */
2141     /* li is the largest image < req */
2142     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
2143
2144     if (!self->nicons) return NULL;
2145
2146     for (i = 0; i < self->nicons; ++i) {
2147         size = self->icons[i].width * self->icons[i].height;
2148         if (size < smallest && size >= (unsigned)(w * h)) {
2149             smallest = size;
2150             si = i;
2151         }
2152         if (size > largest && size <= (unsigned)(w * h)) {
2153             largest = size;
2154             li = i;
2155         }
2156     }
2157     if (largest == 0) /* didnt find one smaller than the requested size */
2158         return &self->icons[si];
2159     return &self->icons[li];
2160 }