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
  13 #include <glib.h>
  14 #include <X11/Xutil.h>
  15
  16 /*! The event mask to grab on client windows */
  17 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
  18                           StructureNotifyMask)
  19
  20 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
  21                                 ButtonMotionMask)
  22
  23 GSList     *client_list      = NULL;
  24 GHashTable *client_map       = NULL;
  25
  26 static void client_get_all(Client *self);
  27 static void client_toggle_border(Client *self, gboolean show);
  28 static void client_get_area(Client *self);
  29 static void client_get_desktop(Client *self);
  30 static void client_get_state(Client *self);
  31 static void client_get_shaped(Client *self);
  32 static void client_get_mwm_hints(Client *self);
  33 static void client_get_gravity(Client *self);
  34 static void client_showhide(Client *self);
  35 static void client_change_allowed_actions(Client *self);
  36 static void client_change_state(Client *self);
  37 static Client *search_focus_tree(Client *node, Client *skip);
  38 static void client_apply_startup_state(Client *self);
  39 static Client *search_modal_tree(Client *node, Client *skip);
  40
  41 static guint map_hash(Window w) { return w; }
  42 static gboolean map_key_comp(Window w1, Window w2) { return w1 == w2; }
  43
  44 void client_startup()
  45 {
  46     client_map = g_hash_table_new((GHashFunc)map_hash,
  47                                   (GEqualFunc)map_key_comp);
  48     client_set_list();
  49 }
  50
  51 void client_shutdown()
  52 {
  53     g_hash_table_destroy(client_map);
  54 }
  55
  56 void client_set_list()
  57 {
  58     Window *windows, *win_it;
  59     GSList *it;
  60     guint size = g_slist_length(client_list);
  61
  62     /* create an array of the window ids */
  63     if (size > 0) {
  64         windows = g_new(Window, size);
  65         win_it = windows;
  66         for (it = client_list; it != NULL; it = it->next, ++win_it)
  67             *win_it = ((Client*)it->data)->window;
  68     } else
  69         windows = NULL;
  70
  71     PROP_SET32A(ob_root, net_client_list, window, windows, size);
  72
  73     if (windows)
  74         g_free(windows);
  75
  76     stacking_set_list();
  77 }
  78
  79 void client_manage_all()
  80 {
  81     unsigned int i, j, nchild;
  82     Window w, *children;
  83     XWMHints *wmhints;
  84     XWindowAttributes attrib;
  85
  86     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
  87
  88     /* remove all icon windows from the list */
  89     for (i = 0; i < nchild; i++) {
  90         if (children[i] == None) continue;
  91         wmhints = XGetWMHints(ob_display, children[i]);
  92         if (wmhints) {
  93             if ((wmhints->flags & IconWindowHint) &&
  94                 (wmhints->icon_window != children[i]))
  95                 for (j = 0; j < nchild; j++)
  96                     if (children[j] == wmhints->icon_window) {
  97                         children[j] = None;
  98                         break;
  99                     }
 100             XFree(wmhints);
 101         }
 102     }
 103
 104     for (i = 0; i < nchild; ++i) {
 105         if (children[i] == None)
 106             continue;
 107         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
 108             if (attrib.override_redirect) continue;
 109
 110             if (attrib.map_state != IsUnmapped)
 111                 client_manage(children[i]);
 112         }
 113     }
 114     XFree(children);
 115 }
 116
 117 void client_manage(Window window)
 118 {
 119     Client *client;
 120     XEvent e;
 121     XWindowAttributes attrib;
 122     XSetWindowAttributes attrib_set;
 123 /*    XWMHints *wmhint; */
 124     guint i;
 125
 126     grab_server(TRUE);
 127
 128     /* check if it has already been unmapped by the time we started mapping
 129        the grab does a sync so we don't have to here */
 130     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
 131         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
 132         XPutBackEvent(ob_display, &e);
 133
 134         grab_server(FALSE);
 135         return; /* don't manage it */
 136     }
 137
 138     /* make sure it isn't an override-redirect window */
 139     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
 140         attrib.override_redirect) {
 141         grab_server(FALSE);
 142         return; /* don't manage it */
 143     }
 144
 145 /*    /\* is the window a docking app *\/
 146     if ((wmhint = XGetWMHints(ob_display, window))) {
 147         if ((wmhint->flags & StateHint) &&
 148             wmhint->initial_state == WithdrawnState) {
 149             /\* XXX: make dock apps work! *\/
 150             grab_server(FALSE);
 151             XFree(wmhint);
 152             return;
 153         }
 154         XFree(wmhint);
 155     }
 156 */
 157
 158     /* choose the events we want to receive on the CLIENT window */
 159     attrib_set.event_mask = CLIENT_EVENTMASK;
 160     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
 161     XChangeWindowAttributes(ob_display, window,
 162                             CWEventMask|CWDontPropagate, &attrib_set);
 163
 164
 165     /* create the Client struct, and populate it from the hints on the
 166        window */
 167     client = g_new(Client, 1);
 168     client->window = window;
 169     client_get_all(client);
 170
 171     /* remove the client's border (and adjust re gravity) */
 172     client_toggle_border(client, FALSE);
 173
 174     /* specify that if we exit, the window should not be destroyed and should
 175        be reparented back to root automatically */
 176     XChangeSaveSet(ob_display, window, SetModeInsert);
 177
 178     /* create the decoration frame for the client window */
 179     client->frame = engine_frame_new();
 180
 181     engine_frame_grab_client(client->frame, client);
 182
 183     client_apply_startup_state(client);
 184
 185     grab_server(FALSE);
 186
 187     client_list = g_slist_append(client_list, client);
 188     stacking_list = g_list_append(stacking_list, client);
 189     g_hash_table_insert(client_map, (gpointer)window, client);
 190
 191     /* update the focus lists */
 192     if (client->desktop == DESKTOP_ALL) {
 193         for (i = 0; i < screen_num_desktops; ++i)
 194             focus_order[i] = g_list_append(focus_order[i], client);
 195     } else {
 196         i = client->desktop;
 197         focus_order[i] = g_list_append(focus_order[i], client);
 198     }
 199
 200     stacking_raise(client);
 201
 202     screen_update_struts();
 203
 204     dispatch_client(Event_Client_New, client, 0, 0);
 205
 206     client_showhide(client);
 207
 208     dispatch_client(Event_Client_Mapped, client, 0, 0);
 209
 210     /* update the list hints */
 211     client_set_list();
 212
 213     g_message("Managed window 0x%lx", window);
 214 }
 215
 216 void client_unmanage_all()
 217 {
 218     while (client_list != NULL)
 219         client_unmanage(client_list->data);
 220 }
 221
 222 void client_unmanage(Client *client)
 223 {
 224     guint i;
 225     int j;
 226     GSList *it;
 227
 228     g_message("Unmanaging window: %lx", client->window);
 229
 230     dispatch_client(Event_Client_Destroy, client, 0, 0);
 231
 232     /* remove the window from our save set */
 233     XChangeSaveSet(ob_display, client->window, SetModeDelete);
 234
 235     /* we dont want events no more */
 236     XSelectInput(ob_display, client->window, NoEventMask);
 237
 238     engine_frame_hide(client->frame);
 239
 240     /* dispatch the unmapped event */
 241     dispatch_client(Event_Client_Unmapped, client, 0, 0);
 242
 243     /* give the client its border back */
 244     client_toggle_border(client, TRUE);
 245
 246     /* reparent the window out of the frame, and free the frame */
 247     engine_frame_release_client(client->frame, client);
 248     client->frame = NULL;
 249
 250     client_list = g_slist_remove(client_list, client);
 251     stacking_list = g_list_remove(stacking_list, client);
 252     g_hash_table_remove(client_map, (gpointer)client->window);
 253
 254     /* update the focus lists */
 255     if (client->desktop == DESKTOP_ALL) {
 256         for (i = 0; i < screen_num_desktops; ++i)
 257             focus_order[i] = g_list_remove(focus_order[i], client);
 258     } else {
 259         i = client->desktop;
 260         focus_order[i] = g_list_remove(focus_order[i], client);
 261     }
 262
 263     /* once the client is out of the list, update the struts to remove it's
 264        influence */
 265     screen_update_struts();
 266
 267     /* tell our parent that we're gone */
 268     if (client->transient_for != NULL)
 269         client->transient_for->transients =
 270             g_slist_remove(client->transient_for->transients, client);
 271
 272     /* tell our transients that we're gone */
 273     for (it = client->transients; it != NULL; it = it->next) {
 274         ((Client*)it->data)->transient_for = NULL;
 275         client_calc_layer(it->data);
 276     }
 277
 278     /* unfocus the client (dispatchs the focus event) (we're out of the
 279      transient lists already, so being modal doesn't matter) */
 280     if (client_focused(client))
 281         client_unfocus(client);
 282
 283     if (ob_state != State_Exiting) {
 284         /* these values should not be persisted across a window
 285            unmapping/mapping */
 286         prop_erase(client->window, prop_atoms.net_wm_desktop);
 287         prop_erase(client->window, prop_atoms.net_wm_state);
 288     } else {
 289         /* if we're left in an iconic state, the client wont be mapped. this is
 290            bad, since we will no longer be managing the window on restart */
 291         if (client->iconic)
 292             XMapWindow(ob_display, client->window);
 293     }
 294
 295     /* free all data allocated in the client struct */
 296     g_slist_free(client->transients);
 297     for (j = 0; j < client->nicons; ++j)
 298         g_free(client->icons[j].data);
 299     if (client->nicons > 0)
 300         g_free(client->icons);
 301     g_free(client->title);
 302     g_free(client->icon_title);
 303     g_free(client->res_name);
 304     g_free(client->res_class);
 305     g_free(client->role);
 306     g_free(client);
 307
 308     /* update the list hints */
 309     client_set_list();
 310 }
 311
 312 static void client_toggle_border(Client *self, gboolean show)
 313 {
 314     /* adjust our idea of where the client is, based on its border. When the
 315        border is removed, the client should now be considered to be in a
 316        different position.
 317        when re-adding the border to the client, the same operation needs to be
 318        reversed. */
 319     int oldx = self->area.x, oldy = self->area.y;
 320     int x = oldx, y = oldy;
 321     switch(self->gravity) {
 322     default:
 323     case NorthWestGravity:
 324     case WestGravity:
 325     case SouthWestGravity:
 326         break;
 327     case NorthEastGravity:
 328     case EastGravity:
 329     case SouthEastGravity:
 330         if (show) x -= self->border_width * 2;
 331         else      x += self->border_width * 2;
 332         break;
 333     case NorthGravity:
 334     case SouthGravity:
 335     case CenterGravity:
 336     case ForgetGravity:
 337     case StaticGravity:
 338         if (show) x -= self->border_width;
 339         else      x += self->border_width;
 340         break;
 341     }
 342     switch(self->gravity) {
 343     default:
 344     case NorthWestGravity:
 345     case NorthGravity:
 346     case NorthEastGravity:
 347         break;
 348     case SouthWestGravity:
 349     case SouthGravity:
 350     case SouthEastGravity:
 351         if (show) y -= self->border_width * 2;
 352         else      y += self->border_width * 2;
 353         break;
 354     case WestGravity:
 355     case EastGravity:
 356     case CenterGravity:
 357     case ForgetGravity:
 358     case StaticGravity:
 359         if (show) y -= self->border_width;
 360         else      y += self->border_width;
 361         break;
 362     }
 363     self->area.x = x;
 364     self->area.y = y;
 365
 366     if (show) {
 367         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
 368
 369         /* move the client so it is back it the right spot _with_ its
 370            border! */
 371         if (x != oldx || y != oldy)
 372             XMoveWindow(ob_display, self->window, x, y);
 373     } else
 374         XSetWindowBorderWidth(ob_display, self->window, 0);
 375 }
 376
 377
 378 static void client_get_all(Client *self)
 379 {
 380     /* update EVERYTHING!! */
 381
 382     self->ignore_unmaps = 0;
 383
 384     /* defaults */
 385     self->frame = NULL;
 386     self->title = self->icon_title = NULL;
 387     self->res_name = self->res_class = self->role = NULL;
 388     self->wmstate = NormalState;
 389     self->transient = FALSE;
 390     self->transients = NULL;
 391     self->transient_for = NULL;
 392     self->layer = -1;
 393     self->urgent = FALSE;
 394     self->positioned = FALSE;
 395     self->disabled_decorations = 0;
 396     self->group = None;
 397     self->nicons = 0;
 398
 399     client_get_area(self);
 400     client_get_desktop(self);
 401     client_get_state(self);
 402     client_get_shaped(self);
 403
 404     client_update_transient_for(self);
 405     client_get_mwm_hints(self);
 406     client_get_type(self);/* this can change the mwmhints for special cases */
 407
 408     client_update_protocols(self);
 409
 410     client_get_gravity(self); /* get the attribute gravity */
 411     client_update_normal_hints(self); /* this may override the attribute
 412                                          gravity */
 413
 414     /* got the type, the mwmhints, the protocols, and the normal hints
 415        (min/max sizes), so we're ready to set up the decorations/functions */
 416     client_setup_decor_and_functions(self);
 417
 418     client_update_wmhints(self);
 419     client_update_title(self);
 420     client_update_icon_title(self);
 421     client_update_class(self);
 422     client_update_strut(self);
 423     client_update_icons(self);
 424     client_update_kwm_icon(self);
 425
 426     /* this makes sure that these windows appear on all desktops */
 427     if (self->type == Type_Desktop)
 428         self->desktop = DESKTOP_ALL;
 429
 430     /* set the desktop hint, to make sure that it always exists, and to
 431        reflect any changes we've made here */
 432     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
 433
 434     client_change_state(self);
 435 }
 436
 437 static void client_get_area(Client *self)
 438 {
 439     XWindowAttributes wattrib;
 440     Status ret;
 441
 442     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 443     g_assert(ret != BadWindow);
 444
 445     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
 446     self->border_width = wattrib.border_width;
 447 }
 448
 449 static void client_get_desktop(Client *self)
 450 {
 451     unsigned int d;
 452
 453     if (PROP_GET32(self->window, net_wm_desktop, cardinal, d)) {
 454         if (d >= screen_num_desktops && d != DESKTOP_ALL)
 455             d = screen_num_desktops - 1;
 456         self->desktop = d;
 457     } else {
 458         /* defaults to the current desktop */
 459         self->desktop = screen_desktop;
 460     }
 461 }
 462
 463 static void client_get_state(Client *self)
 464 {
 465     gulong *state;
 466     gulong num;
 467
 468     self->modal = self->shaded = self->max_horz = self->max_vert =
 469         self->fullscreen = self->above = self->below = self->iconic =
 470         self->skip_taskbar = self->skip_pager = FALSE;
 471
 472     if (PROP_GET32U(self->window, net_wm_state, atom, state, num)) {
 473         gulong i;
 474         for (i = 0; i < num; ++i) {
 475             if (state[i] == prop_atoms.net_wm_state_modal)
 476                 self->modal = TRUE;
 477             else if (state[i] == prop_atoms.net_wm_state_shaded)
 478                 self->shaded = TRUE;
 479             else if (state[i] == prop_atoms.net_wm_state_hidden)
 480                 self->iconic = TRUE;
 481             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
 482                 self->skip_taskbar = TRUE;
 483             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
 484                 self->skip_pager = TRUE;
 485             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
 486                 self->fullscreen = TRUE;
 487             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
 488                 self->max_vert = TRUE;
 489             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
 490                 self->max_horz = TRUE;
 491             else if (state[i] == prop_atoms.net_wm_state_above)
 492                 self->above = TRUE;
 493             else if (state[i] == prop_atoms.net_wm_state_below)
 494                 self->below = TRUE;
 495         }
 496
 497         g_free(state);
 498     }
 499 }
 500
 501 static void client_get_shaped(Client *self)
 502 {
 503     self->shaped = FALSE;
 504 #ifdef   SHAPE
 505     if (extensions_shape) {
 506         int foo;
 507         guint ufoo;
 508         int s;
 509
 510         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
 511
 512         XShapeQueryExtents(ob_display, self->window, &s, &foo,
 513                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
 514                            &ufoo);
 515         self->shaped = (s != 0);
 516     }
 517 #endif
 518 }
 519
 520 void client_update_transient_for(Client *self)
 521 {
 522     Window t = None;
 523     Client *c = NULL;
 524
 525     if (XGetTransientForHint(ob_display, self->window, &t) &&
 526         t != self->window) { /* cant be transient to itself! */
 527         self->transient = TRUE;
 528         c = g_hash_table_lookup(client_map, (gpointer)t);
 529         g_assert(c != self);/* if this happens then we need to check for it*/
 530
 531         if (!c /*XXX: && _group*/) {
 532             /* not transient to a client, see if it is transient for a
 533                group */
 534             if (/*t == _group->leader() || */
 535                 t == None ||
 536                 t == ob_root) {
 537                 /* window is a transient for its group! */
 538                 /* XXX: for now this is treated as non-transient.
 539                    this needs to be fixed! */
 540             }
 541         }
 542     } else
 543         self->transient = FALSE;
 544
 545     /* if anything has changed... */
 546     if (c != self->transient_for) {
 547         if (self->transient_for)
 548             /* remove from old parent */
 549             g_slist_remove(self->transient_for->transients, self);
 550         self->transient_for = c;
 551         if (self->transient_for)
 552             /* add to new parent */
 553             g_slist_append(self->transient_for->transients, self);
 554     }
 555 }
 556
 557 static void client_get_mwm_hints(Client *self)
 558 {
 559     unsigned long num;
 560     unsigned long *hints;
 561
 562     self->mwmhints.flags = 0; /* default to none */
 563
 564     if (PROP_GET32U(self->window, motif_wm_hints, motif_wm_hints, hints, num)) {
 565         if (num >= MWM_ELEMENTS) {
 566             self->mwmhints.flags = hints[0];
 567             self->mwmhints.functions = hints[1];
 568             self->mwmhints.decorations = hints[2];
 569         }
 570         g_free(hints);
 571     }
 572 }
 573
 574 void client_get_type(Client *self)
 575 {
 576     gulong *val, num, i;
 577
 578     self->type = -1;
 579
 580     if (PROP_GET32U(self->window, net_wm_window_type, atom, val, num)) {
 581         /* use the first value that we know about in the array */
 582         for (i = 0; i < num; ++i) {
 583             if (val[i] == prop_atoms.net_wm_window_type_desktop)
 584                 self->type = Type_Desktop;
 585             else if (val[i] == prop_atoms.net_wm_window_type_dock)
 586                 self->type = Type_Dock;
 587             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
 588                 self->type = Type_Toolbar;
 589             else if (val[i] == prop_atoms.net_wm_window_type_menu)
 590                 self->type = Type_Menu;
 591             else if (val[i] == prop_atoms.net_wm_window_type_utility)
 592                 self->type = Type_Utility;
 593             else if (val[i] == prop_atoms.net_wm_window_type_splash)
 594                 self->type = Type_Splash;
 595             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
 596                 self->type = Type_Dialog;
 597             else if (val[i] == prop_atoms.net_wm_window_type_normal)
 598                 self->type = Type_Normal;
 599             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
 600                 /* prevent this window from getting any decor or
 601                    functionality */
 602                 self->mwmhints.flags &= (MwmFlag_Functions |
 603                                          MwmFlag_Decorations);
 604                 self->mwmhints.decorations = 0;
 605                 self->mwmhints.functions = 0;
 606             }
 607             if (self->type != (WindowType) -1)
 608                 break; /* grab the first legit type */
 609         }
 610         g_free(val);
 611     }
 612
 613     if (self->type == (WindowType) -1) {
 614         /*the window type hint was not set, which means we either classify
 615           ourself as a normal window or a dialog, depending on if we are a
 616           transient. */
 617         if (self->transient)
 618             self->type = Type_Dialog;
 619         else
 620             self->type = Type_Normal;
 621     }
 622 }
 623
 624 void client_update_protocols(Client *self)
 625 {
 626     Atom *proto;
 627     gulong num_return, i;
 628
 629     self->focus_notify = FALSE;
 630     self->delete_window = FALSE;
 631
 632     if (PROP_GET32U(self->window, wm_protocols, atom, proto, num_return)) {
 633         for (i = 0; i < num_return; ++i) {
 634             if (proto[i] == prop_atoms.wm_delete_window) {
 635                 /* this means we can request the window to close */
 636                 self->delete_window = TRUE;
 637             } else if (proto[i] == prop_atoms.wm_take_focus)
 638                 /* if this protocol is requested, then the window will be
 639                    notified whenever we want it to receive focus */
 640                 self->focus_notify = TRUE;
 641         }
 642         g_free(proto);
 643     }
 644 }
 645
 646 static void client_get_gravity(Client *self)
 647 {
 648     XWindowAttributes wattrib;
 649     Status ret;
 650
 651     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
 652     g_assert(ret != BadWindow);
 653     self->gravity = wattrib.win_gravity;
 654 }
 655
 656 void client_update_normal_hints(Client *self)
 657 {
 658     XSizeHints size;
 659     long ret;
 660     int oldgravity = self->gravity;
 661
 662     /* defaults */
 663     self->min_ratio = 0.0f;
 664     self->max_ratio = 0.0f;
 665     SIZE_SET(self->size_inc, 1, 1);
 666     SIZE_SET(self->base_size, 0, 0);
 667     SIZE_SET(self->min_size, 0, 0);
 668     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
 669
 670     /* get the hints from the window */
 671     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
 672         self->positioned = (size.flags & (PPosition|USPosition));
 673
 674         if (size.flags & PWinGravity) {
 675             self->gravity = size.win_gravity;
 676
 677             /* if the client has a frame, i.e. has already been mapped and
 678                is changing its gravity */
 679             if (self->frame && self->gravity != oldgravity) {
 680                 /* move our idea of the client's position based on its new
 681                    gravity */
 682                 self->area.x = self->frame->area.x;
 683                 self->area.y = self->frame->area.y;
 684                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
 685             }
 686         }
 687
 688         if (size.flags & PAspect) {
 689             if (size.min_aspect.y)
 690                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
 691             if (size.max_aspect.y)
 692                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
 693         }
 694
 695         if (size.flags & PMinSize)
 696             SIZE_SET(self->min_size, size.min_width, size.min_height);
 697
 698         if (size.flags & PMaxSize)
 699             SIZE_SET(self->max_size, size.max_width, size.max_height);
 700
 701         if (size.flags & PBaseSize)
 702             SIZE_SET(self->base_size, size.base_width, size.base_height);
 703
 704         if (size.flags & PResizeInc)
 705             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
 706     }
 707 }
 708
 709 void client_setup_decor_and_functions(Client *self)
 710 {
 711     /* start with everything (cept fullscreen) */
 712     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
 713         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize;
 714     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
 715         Func_Shade;
 716     if (self->delete_window) {
 717         self->decorations |= Decor_Close;
 718         self->functions |= Func_Close;
 719     }
 720
 721     if (!(self->min_size.width < self->max_size.width ||
 722           self->min_size.height < self->max_size.height)) {
 723         self->decorations &= ~(Decor_Maximize | Decor_Handle);
 724         self->functions &= ~(Func_Resize | Func_Maximize);
 725     }
 726
 727     switch (self->type) {
 728     case Type_Normal:
 729         /* normal windows retain all of the possible decorations and
 730            functionality, and are the only windows that you can fullscreen */
 731         self->functions |= Func_Fullscreen;
 732         break;
 733
 734     case Type_Dialog:
 735         /* dialogs cannot be maximized */
 736         self->decorations &= ~Decor_Maximize;
 737         self->functions &= ~Func_Maximize;
 738         break;
 739
 740     case Type_Menu:
 741     case Type_Toolbar:
 742     case Type_Utility:
 743         /* these windows get less functionality */
 744         self->decorations &= ~(Decor_Iconify | Decor_Handle);
 745         self->functions &= ~(Func_Iconify | Func_Resize);
 746         break;
 747
 748     case Type_Desktop:
 749     case Type_Dock:
 750     case Type_Splash:
 751         /* none of these windows are manipulated by the window manager */
 752         self->decorations = 0;
 753         self->functions = 0;
 754         break;
 755     }
 756
 757     /* Mwm Hints are applied subtractively to what has already been chosen for
 758        decor and functionality */
 759     if (self->mwmhints.flags & MwmFlag_Decorations) {
 760         if (! (self->mwmhints.decorations & MwmDecor_All)) {
 761             if (! (self->mwmhints.decorations & MwmDecor_Border))
 762                 self->decorations &= ~Decor_Border;
 763             if (! (self->mwmhints.decorations & MwmDecor_Handle))
 764                 self->decorations &= ~Decor_Handle;
 765             if (! (self->mwmhints.decorations & MwmDecor_Title))
 766                 self->decorations &= ~Decor_Titlebar;
 767             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
 768                 self->decorations &= ~Decor_Iconify;
 769             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
 770                 self->decorations &= ~Decor_Maximize;
 771         }
 772     }
 773
 774     if (self->mwmhints.flags & MwmFlag_Functions) {
 775         if (! (self->mwmhints.functions & MwmFunc_All)) {
 776             if (! (self->mwmhints.functions & MwmFunc_Resize))
 777                 self->functions &= ~Func_Resize;
 778             if (! (self->mwmhints.functions & MwmFunc_Move))
 779                 self->functions &= ~Func_Move;
 780             if (! (self->mwmhints.functions & MwmFunc_Iconify))
 781                 self->functions &= ~Func_Iconify;
 782             if (! (self->mwmhints.functions & MwmFunc_Maximize))
 783                 self->functions &= ~Func_Maximize;
 784             /* dont let mwm hints kill the close button
 785                if (! (self->mwmhints.functions & MwmFunc_Close))
 786                self->functions &= ~Func_Close; */
 787         }
 788     }
 789
 790     /* can't maximize without moving/resizing */
 791     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
 792         self->functions &= ~Func_Maximize;
 793
 794     /* finally, user specified disabled decorations are applied to subtract
 795        decorations */
 796     if (self->disabled_decorations & Decor_Titlebar)
 797         self->decorations &= ~Decor_Titlebar;
 798     if (self->disabled_decorations & Decor_Handle)
 799         self->decorations &= ~Decor_Handle;
 800     if (self->disabled_decorations & Decor_Border)
 801         self->decorations &= ~Decor_Border;
 802     if (self->disabled_decorations & Decor_Iconify)
 803         self->decorations &= ~Decor_Iconify;
 804     if (self->disabled_decorations & Decor_Maximize)
 805         self->decorations &= ~Decor_Maximize;
 806     if (self->disabled_decorations & Decor_AllDesktops)
 807         self->decorations &= ~Decor_AllDesktops;
 808     if (self->disabled_decorations & Decor_Close)
 809         self->decorations &= ~Decor_Close;
 810
 811     /* if we don't have a titlebar, then we cannot shade! */
 812     if (!(self->decorations & Decor_Titlebar))
 813         self->functions &= ~Func_Shade;
 814
 815     client_change_allowed_actions(self);
 816
 817     if (self->frame) {
 818         /* change the decors on the frame */
 819         engine_frame_adjust_size(self->frame);
 820         /* with more/less decorations, we may need to be repositioned */
 821         engine_frame_adjust_position(self->frame);
 822         /* with new decor, the window's maximized size may change */
 823         client_remaximize(self);
 824     }
 825 }
 826
 827 static void client_change_allowed_actions(Client *self)
 828 {
 829     Atom actions[9];
 830     int num = 0;
 831
 832     actions[num++] = prop_atoms.net_wm_action_change_desktop;
 833
 834     if (self->functions & Func_Shade)
 835         actions[num++] = prop_atoms.net_wm_action_shade;
 836     if (self->functions & Func_Close)
 837         actions[num++] = prop_atoms.net_wm_action_close;
 838     if (self->functions & Func_Move)
 839         actions[num++] = prop_atoms.net_wm_action_move;
 840     if (self->functions & Func_Iconify)
 841         actions[num++] = prop_atoms.net_wm_action_minimize;
 842     if (self->functions & Func_Resize)
 843         actions[num++] = prop_atoms.net_wm_action_resize;
 844     if (self->functions & Func_Fullscreen)
 845         actions[num++] = prop_atoms.net_wm_action_fullscreen;
 846     if (self->functions & Func_Maximize) {
 847         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
 848         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
 849     }
 850
 851     PROP_SET32A(self->window, net_wm_allowed_actions, atom, actions, num);
 852
 853     /* make sure the window isn't breaking any rules now */
 854
 855     if (!(self->functions & Func_Shade) && self->shaded) {
 856         if (self->frame) client_shade(self, FALSE);
 857         else self->shaded = FALSE;
 858     }
 859     if (!(self->functions & Func_Iconify) && self->iconic) {
 860         if (self->frame) client_iconify(self, FALSE, TRUE);
 861         else self->iconic = FALSE;
 862     }
 863     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
 864         if (self->frame) client_fullscreen(self, FALSE, TRUE);
 865         else self->fullscreen = FALSE;
 866     }
 867     if (!(self->functions & Func_Maximize) && (self->max_horz ||
 868                                                self->max_vert)) {
 869         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
 870         else self->max_vert = self->max_horz = FALSE;
 871     }
 872 }
 873
 874 void client_remaximize(Client *self)
 875 {
 876     int dir;
 877     if (self->max_horz && self->max_vert)
 878         dir = 0;
 879     else if (self->max_horz)
 880         dir = 1;
 881     else if (self->max_vert)
 882         dir = 2;
 883     else
 884         return; /* not maximized */
 885     self->max_horz = self->max_vert = FALSE;
 886     client_maximize(self, TRUE, dir, FALSE);
 887 }
 888
 889 void client_update_wmhints(Client *self)
 890 {
 891     XWMHints *hints;
 892     gboolean ur = FALSE;
 893
 894     /* assume a window takes input if it doesnt specify */
 895     self->can_focus = TRUE;
 896
 897     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
 898         if (hints->flags & InputHint)
 899             self->can_focus = hints->input;
 900
 901         /* only do this when starting! */
 902         if (ob_state == State_Starting && (hints->flags & StateHint))
 903             self->iconic = hints->initial_state == IconicState;
 904
 905         if (hints->flags & XUrgencyHint)
 906             ur = TRUE;
 907
 908         if (hints->flags & WindowGroupHint) {
 909             if (hints->window_group != self->group) {
 910                 /* XXX: remove from the old group if there was one */
 911                 self->group = hints->window_group;
 912                 /* XXX: do stuff with the group */
 913             }
 914         } else /* no group! */
 915             self->group = None;
 916
 917         if (hints->flags & IconPixmapHint) {
 918             client_update_kwm_icon(self);
 919             /* try get the kwm icon first, this is a fallback only */
 920             if (self->pixmap_icon == None) {
 921                 self->pixmap_icon = hints->icon_pixmap;
 922                 if (hints->flags & IconMaskHint)
 923                     self->pixmap_icon_mask = hints->icon_mask;
 924                 else
 925                     self->pixmap_icon_mask = None;
 926
 927                 if (self->frame)
 928                     engine_frame_adjust_icon(self->frame);
 929             }
 930         }
 931
 932         XFree(hints);
 933     }
 934
 935     if (ur != self->urgent) {
 936         self->urgent = ur;
 937         g_message("Urgent Hint for 0x%lx: %s\n", self->window,
 938                   ur ? "ON" : "OFF");
 939         /* fire the urgent callback if we're mapped, otherwise, wait until
 940            after we're mapped */
 941         if (self->frame)
 942             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
 943     }
 944 }
 945
 946 void client_update_title(Client *self)
 947 {
 948     gchar *data = NULL;
 949
 950     g_free(self->title);
 951
 952     /* try netwm */
 953     if (!PROP_GETS(self->window, net_wm_name, utf8, data)) {
 954         /* try old x stuff */
 955         if (PROP_GETS(self->window, wm_name, string, data)) {
 956             /* convert it to UTF-8 */
 957             gsize r, w;
 958             gchar *u;
 959
 960             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
 961             if (u == NULL) {
 962                 g_warning("Unable to convert string to UTF-8");
 963             } else {
 964                 g_free(data);
 965                 data = u;
 966             }
 967         }
 968         if (data == NULL)
 969             data = g_strdup("Unnamed Window");
 970
 971         PROP_SETS(self->window, net_wm_visible_name, utf8, data);
 972     }
 973
 974     self->title = data;
 975
 976     if (self->frame)
 977         engine_frame_adjust_title(self->frame);
 978 }
 979
 980 void client_update_icon_title(Client *self)
 981 {
 982     gchar *data = NULL;
 983
 984     g_free(self->icon_title);
 985
 986     /* try netwm */
 987     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, data)) {
 988         /* try old x stuff */
 989         if (PROP_GETS(self->window, wm_icon_name, string, data)) {
 990             /* convert it to UTF-8 */
 991             gsize r, w;
 992             gchar *u;
 993
 994             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
 995             if (u == NULL) {
 996                 g_warning("Unable to convert string to UTF-8");
 997             } else {
 998                 g_free(data);
 999                 data = u;
1000             }
1001         }
1002         if (data == NULL)
1003             data = g_strdup("Unnamed Window");
1004
1005         PROP_SETS(self->window, net_wm_visible_icon_name, utf8, data);
1006     }
1007
1008     self->icon_title = data;
1009 }
1010
1011 void client_update_class(Client *self)
1012 {
1013     GPtrArray *data;
1014     gchar *s;
1015     guint i;
1016
1017     if (self->res_name) g_free(self->res_name);
1018     if (self->res_class) g_free(self->res_class);
1019     if (self->role) g_free(self->role);
1020
1021     self->res_name = self->res_class = self->role = NULL;
1022
1023     data = g_ptr_array_new();
1024
1025     if (PROP_GETSA(self->window, wm_class, string, data)) {
1026         if (data->len > 0)
1027             self->res_name = g_strdup(g_ptr_array_index(data, 0));
1028         if (data->len > 1)
1029             self->res_class = g_strdup(g_ptr_array_index(data, 1));
1030     }
1031
1032     for (i = 0; i < data->len; ++i)
1033         g_free(g_ptr_array_index(data, i));
1034     g_ptr_array_free(data, TRUE);
1035
1036     if (PROP_GETS(self->window, wm_window_role, string, s))
1037         self->role = g_strdup(s);
1038
1039     if (self->res_name == NULL) self->res_name = g_strdup("");
1040     if (self->res_class == NULL) self->res_class = g_strdup("");
1041     if (self->role == NULL) self->role = g_strdup("");
1042 }
1043
1044 void client_update_strut(Client *self)
1045 {
1046     gulong *data;
1047
1048     if (PROP_GET32A(self->window, net_wm_strut, cardinal, data, 4)) {
1049         STRUT_SET(self->strut, data[0], data[1], data[2], data[3]);
1050         g_free(data);
1051     } else
1052         STRUT_SET(self->strut, 0, 0, 0, 0);
1053
1054     /* updating here is pointless while we're being mapped cuz we're not in
1055        the client list yet */
1056     if (self->frame)
1057         screen_update_struts();
1058 }
1059
1060 void client_update_icons(Client *self)
1061 {
1062     unsigned long num;
1063     unsigned long *data;
1064     unsigned long w, h, i;
1065     int j;
1066
1067     for (j = 0; j < self->nicons; ++j)
1068         g_free(self->icons[j].data);
1069     if (self->nicons > 0)
1070         g_free(self->icons);
1071     self->nicons = 0;
1072
1073     if (PROP_GET32U(self->window, net_wm_icon, cardinal, data, num)) {
1074         /* figure out how many valid icons are in here */
1075         i = 0;
1076         while (num - i > 2) {
1077             w = data[i++];
1078             h = data[i++];
1079             i += w * h;
1080             if (i > num) break;
1081             ++self->nicons;
1082         }
1083
1084         self->icons = g_new(Icon, self->nicons);
1085
1086         /* store the icons */
1087         i = 0;
1088         for (j = 0; j < self->nicons; ++j) {
1089             w = self->icons[j].w = data[i++];
1090             h = self->icons[j].h = data[i++];
1091             self->icons[j].data =
1092                 g_memdup(&data[i], w * h * sizeof(gulong));
1093             i += w * h;
1094             g_assert(i <= num);
1095         }
1096
1097         g_free(data);
1098     }
1099
1100     if (self->nicons <= 0) {
1101         self->nicons = 1;
1102         self->icons = g_new0(Icon, 1);
1103     }
1104
1105     if (self->frame)
1106         engine_frame_adjust_icon(self->frame);
1107 }
1108
1109 void client_update_kwm_icon(Client *self)
1110 {
1111     Pixmap *data;
1112
1113     if (PROP_GET32A(self->window, kwm_win_icon, kwm_win_icon, data, 2)) {
1114         self->pixmap_icon = data[0];
1115         self->pixmap_icon_mask = data[1];
1116         g_free(data);
1117     } else {
1118         self->pixmap_icon = self->pixmap_icon_mask = None;
1119     }
1120     if (self->frame)
1121         engine_frame_adjust_icon(self->frame);
1122 }
1123
1124 static void client_change_state(Client *self)
1125 {
1126     unsigned long state[2];
1127     Atom netstate[10];
1128     int num;
1129
1130     state[0] = self->wmstate;
1131     state[1] = None;
1132     PROP_SET32A(self->window, wm_state, wm_state, state, 2);
1133
1134     num = 0;
1135     if (self->modal)
1136         netstate[num++] = prop_atoms.net_wm_state_modal;
1137     if (self->shaded)
1138         netstate[num++] = prop_atoms.net_wm_state_shaded;
1139     if (self->iconic)
1140         netstate[num++] = prop_atoms.net_wm_state_hidden;
1141     if (self->skip_taskbar)
1142         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1143     if (self->skip_pager)
1144         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1145     if (self->fullscreen)
1146         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1147     if (self->max_vert)
1148         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1149     if (self->max_horz)
1150         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1151     if (self->above)
1152         netstate[num++] = prop_atoms.net_wm_state_above;
1153     if (self->below)
1154         netstate[num++] = prop_atoms.net_wm_state_below;
1155     PROP_SET32A(self->window, net_wm_state, atom, netstate, num);
1156
1157     client_calc_layer(self);
1158
1159     if (self->frame)
1160         engine_frame_adjust_state(self->frame);
1161 }
1162
1163 static Client *search_focus_tree(Client *node, Client *skip)
1164 {
1165     GSList *it;
1166     Client *ret;
1167
1168     for (it = node->transients; it != NULL; it = g_slist_next(it)) {
1169         Client *c = it->data;
1170         if (c == skip) continue; /* circular? */
1171         if ((ret = search_focus_tree(c, skip))) return ret;
1172         if (client_focused(c)) return c;
1173     }
1174     return NULL;
1175 }
1176
1177 void client_calc_layer(Client *self)
1178 {
1179     StackLayer l;
1180     gboolean fs;
1181     Client *c;
1182
1183     /* are we fullscreen, or do we have a fullscreen transient parent? */
1184     c = self;
1185     fs = FALSE;
1186     while (c) {
1187         if (c->fullscreen) {
1188             fs = TRUE;
1189             break;
1190         }
1191         c = c->transient_for;
1192     }
1193     if (!fs && self->fullscreen) {
1194         /* is one of our transients focused? */
1195         c = search_focus_tree(self, self);
1196         if (c != NULL) fs = TRUE;
1197     }
1198
1199     if (self->iconic) l = Layer_Icon;
1200     else if (fs) l = Layer_Fullscreen;
1201     else if (self->type == Type_Desktop) l = Layer_Desktop;
1202     else if (self->type == Type_Dock) {
1203         if (!self->below) l = Layer_Top;
1204         else l = Layer_Normal;
1205     }
1206     else if (self->above) l = Layer_Above;
1207     else if (self->below) l = Layer_Below;
1208     else l = Layer_Normal;
1209
1210     if (l != self->layer) {
1211         self->layer = l;
1212         if (self->frame)
1213             stacking_raise(self);
1214     }
1215 }
1216
1217 gboolean client_should_show(Client *self)
1218 {
1219     if (self->iconic) return FALSE;
1220     else if (!(self->desktop == screen_desktop ||
1221                self->desktop == DESKTOP_ALL)) return FALSE;
1222     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1223
1224     return TRUE;
1225 }
1226
1227 static void client_showhide(Client *self)
1228 {
1229
1230     if (client_should_show(self))
1231         engine_frame_show(self->frame);
1232     else
1233         engine_frame_hide(self->frame);
1234 }
1235
1236 gboolean client_normal(Client *self) {
1237     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1238               self->type == Type_Splash);
1239 }
1240
1241 static void client_apply_startup_state(Client *self)
1242 {
1243     /* these are in a carefully crafted order.. */
1244
1245     if (self->iconic) {
1246         self->iconic = FALSE;
1247         client_iconify(self, TRUE, FALSE);
1248     }
1249     if (self->fullscreen) {
1250         self->fullscreen = FALSE;
1251         client_fullscreen(self, TRUE, FALSE);
1252     }
1253     if (self->shaded) {
1254         self->shaded = FALSE;
1255         client_shade(self, TRUE);
1256     }
1257     if (self->urgent)
1258         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1259
1260     if (self->max_vert && self->max_horz) {
1261         self->max_vert = self->max_horz = FALSE;
1262         client_maximize(self, TRUE, 0, FALSE);
1263     } else if (self->max_vert) {
1264         self->max_vert = FALSE;
1265         client_maximize(self, TRUE, 2, FALSE);
1266     } else if (self->max_horz) {
1267         self->max_horz = FALSE;
1268         client_maximize(self, TRUE, 1, FALSE);
1269     }
1270
1271     /* nothing to do for the other states:
1272        skip_taskbar
1273        skip_pager
1274        modal
1275        above
1276        below
1277     */
1278 }
1279
1280 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1281                       gboolean user, gboolean final)
1282 {
1283     gboolean moved = FALSE, resized = FALSE;
1284
1285     /* set the size and position if fullscreen */
1286     if (self->fullscreen) {
1287         x = 0;
1288         y = 0;
1289         w = screen_physical_size.width;
1290         h = screen_physical_size.height;
1291     } else {
1292         /* set the size and position if maximized */
1293         if (self->max_horz) {
1294             x = screen_area(self->desktop)->x - self->frame->size.left;
1295             w = screen_area(self->desktop)->x +
1296                 screen_area(self->desktop)->width;
1297         }
1298         if (self->max_vert) {
1299             y = screen_area(self->desktop)->y;
1300             h = screen_area(self->desktop)->y +
1301                 screen_area(self->desktop)->height -
1302                 self->frame->size.top - self->frame->size.bottom;
1303         }
1304     }
1305
1306     if (x == self->area.x && y == self->area.y && w == self->area.width &&
1307         h == self->area.height)
1308         return; /* no change */
1309
1310     w -= self->base_size.width;
1311     h -= self->base_size.height;
1312
1313     if (user) {
1314         /* for interactive resizing. have to move half an increment in each
1315            direction. */
1316
1317         /* how far we are towards the next size inc */
1318         int mw = w % self->size_inc.width;
1319         int mh = h % self->size_inc.height;
1320         /* amount to add */
1321         int aw = self->size_inc.width / 2;
1322         int ah = self->size_inc.height / 2;
1323         /* don't let us move into a new size increment */
1324         if (mw + aw >= self->size_inc.width)
1325             aw = self->size_inc.width - mw - 1;
1326         if (mh + ah >= self->size_inc.height)
1327             ah = self->size_inc.height - mh - 1;
1328         w += aw;
1329         h += ah;
1330
1331         /* if this is a user-requested resize, then check against min/max
1332            sizes and aspect ratios */
1333
1334         /* smaller than min size or bigger than max size? */
1335         if (w > self->max_size.width) w = self->max_size.width;
1336         if (w < self->min_size.width) w = self->min_size.width;
1337         if (h > self->max_size.height) h = self->max_size.height;
1338         if (h < self->min_size.height) h = self->min_size.height;
1339
1340         /* adjust the height ot match the width for the aspect ratios */
1341         if (self->min_ratio)
1342             if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1343         if (self->max_ratio)
1344             if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1345     }
1346
1347     /* keep to the increments */
1348     w /= self->size_inc.width;
1349     h /= self->size_inc.height;
1350
1351     /* you cannot resize to nothing */
1352     if (w < 1) w = 1;
1353     if (h < 1) h = 1;
1354
1355     /* store the logical size */
1356     SIZE_SET(self->logical_size, w, h);
1357
1358     w *= self->size_inc.width;
1359     h *= self->size_inc.height;
1360
1361     w += self->base_size.width;
1362     h += self->base_size.height;
1363
1364     switch (anchor) {
1365     case Corner_TopLeft:
1366         break;
1367     case Corner_TopRight:
1368         x -= w - self->area.width;
1369         break;
1370     case Corner_BottomLeft:
1371         y -= h - self->area.height;
1372         break;
1373     case Corner_BottomRight:
1374         x -= w - self->area.width;
1375         y -= h - self->area.height;
1376         break;
1377     }
1378
1379     moved = x != self->area.x || y != self->area.y;
1380     resized = w != self->area.width || h != self->area.height;
1381
1382     RECT_SET(self->area, x, y, w, h);
1383
1384     if (resized)
1385         XResizeWindow(ob_display, self->window, w, h);
1386
1387     /* move/resize the frame to match the request */
1388     if (self->frame) {
1389         /* Adjust the size and then the position, as required by the EWMH */
1390         if (resized)
1391             engine_frame_adjust_size(self->frame);
1392         if (moved) {
1393             engine_frame_adjust_position(self->frame);
1394
1395             if (!user || final) {
1396                 XEvent event;
1397                 event.type = ConfigureNotify;
1398                 event.xconfigure.display = ob_display;
1399                 event.xconfigure.event = self->window;
1400                 event.xconfigure.window = self->window;
1401
1402                 /* root window coords with border in mind */
1403                 event.xconfigure.x = x - self->border_width +
1404                     self->frame->size.left;
1405                 event.xconfigure.y = y - self->border_width +
1406                     self->frame->size.top;
1407
1408                 event.xconfigure.width = self->area.width;
1409                 event.xconfigure.height = self->area.height;
1410                 event.xconfigure.border_width = self->border_width;
1411                 event.xconfigure.above = self->frame->plate;
1412                 event.xconfigure.override_redirect = FALSE;
1413                 XSendEvent(event.xconfigure.display, event.xconfigure.window,
1414                            FALSE, StructureNotifyMask, &event);
1415             }
1416         }
1417     }
1418 }
1419
1420 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1421 {
1422     int x, y, w, h;
1423
1424     if (!(self->functions & Func_Fullscreen) || /* can't */
1425         self->fullscreen == fs) return;         /* already done */
1426
1427     self->fullscreen = fs;
1428     client_change_state(self); /* change the state hints on the client */
1429
1430     if (fs) {
1431         /* save the functions and remove them */
1432         self->pre_fs_func = self->functions;
1433         self->functions &= (Func_Close | Func_Fullscreen |
1434                             Func_Iconify);
1435         /* save the decorations and remove them */
1436         self->pre_fs_decor = self->decorations;
1437         self->decorations = 0;
1438         if (savearea) {
1439             long dimensions[4];
1440             dimensions[0] = self->area.x;
1441             dimensions[1] = self->area.y;
1442             dimensions[2] = self->area.width;
1443             dimensions[3] = self->area.height;
1444
1445             PROP_SET32A(self->window, openbox_premax, cardinal,
1446                         dimensions, 4);
1447         }
1448
1449         /* these are not actually used cuz client_configure will set them
1450            as appropriate when the window is fullscreened */
1451         x = y = w = h = 0;
1452     } else {
1453         long *dimensions;
1454
1455         self->functions = self->pre_fs_func;
1456         self->decorations = self->pre_fs_decor;
1457
1458         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1459                         dimensions, 4)) {
1460             x = dimensions[0];
1461             y = dimensions[1];
1462             w = dimensions[2];
1463             h = dimensions[3];
1464             g_free(dimensions);
1465         } else {
1466             /* pick some fallbacks... */
1467             x = screen_area(self->desktop)->x +
1468                 screen_area(self->desktop)->width / 4;
1469             y = screen_area(self->desktop)->y +
1470                 screen_area(self->desktop)->height / 4;
1471             w = screen_area(self->desktop)->width / 2;
1472             h = screen_area(self->desktop)->height / 2;
1473         }
1474     }
1475
1476     client_change_allowed_actions(self); /* based on the new _functions */
1477
1478     /* when fullscreening, don't obey things like increments, fill the
1479        screen */
1480     client_configure(self, Corner_TopLeft, x, y, w, h, !fs, TRUE);
1481
1482     /* raise (back) into our stacking layer */
1483     stacking_raise(self);
1484
1485     /* try focus us when we go into fullscreen mode */
1486     client_focus(self);
1487 }
1488
1489 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1490 {
1491     if (self->iconic == iconic) return; /* nothing to do */
1492
1493     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1494               self->window);
1495
1496     self->iconic = iconic;
1497
1498     if (iconic) {
1499         self->wmstate = IconicState;
1500         self->ignore_unmaps++;
1501         /* we unmap the client itself so that we can get MapRequest events,
1502            and because the ICCCM tells us to! */
1503         XUnmapWindow(ob_display, self->window);
1504     } else {
1505         if (curdesk)
1506             client_set_desktop(self, screen_desktop);
1507         self->wmstate = self->shaded ? IconicState : NormalState;
1508         XMapWindow(ob_display, self->window);
1509     }
1510     client_change_state(self);
1511     client_showhide(self);
1512     screen_update_struts();
1513 }
1514
1515 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1516 {
1517     int x, y, w, h;
1518
1519     g_assert(dir == 0 || dir == 1 || dir == 2);
1520     if (!(self->functions & Func_Maximize)) return; /* can't */
1521
1522     /* check if already done */
1523     if (max) {
1524         if (dir == 0 && self->max_horz && self->max_vert) return;
1525         if (dir == 1 && self->max_horz) return;
1526         if (dir == 2 && self->max_vert) return;
1527     } else {
1528         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1529         if (dir == 1 && !self->max_horz) return;
1530         if (dir == 2 && !self->max_vert) return;
1531     }
1532
1533     /* work with the frame's coords */
1534     x = self->frame->area.x;
1535     y = self->frame->area.y;
1536     w = self->area.width;
1537     h = self->area.height;
1538
1539     if (max) {
1540         if (savearea) {
1541             long dimensions[4];
1542             long *readdim;
1543
1544             dimensions[0] = x;
1545             dimensions[1] = y;
1546             dimensions[2] = w;
1547             dimensions[3] = h;
1548
1549             /* get the property off the window and use it for the dimensions
1550                we are already maxed on */
1551             if (PROP_GET32A(self->window, openbox_premax, cardinal,
1552                             readdim, 4)) {
1553                 if (self->max_horz) {
1554                     dimensions[0] = readdim[0];
1555                     dimensions[2] = readdim[2];
1556                 }
1557                 if (self->max_vert) {
1558                     dimensions[1] = readdim[1];
1559                     dimensions[3] = readdim[3];
1560                 }
1561                 g_free(readdim);
1562             }
1563
1564             PROP_SET32A(self->window, openbox_premax, cardinal,
1565                         dimensions, 4);
1566         }
1567
1568         /* pass the client's current position info. the client_configure
1569            will move/size stuff as appropriate for a maximized window */
1570         x = self->area.x;
1571         y = self->area.y;
1572         w = self->area.width;
1573         h = self->area.height;
1574     } else {
1575         long *dimensions;
1576
1577         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1578                         dimensions, 4)) {
1579             if (dir == 0 || dir == 1) { /* horz */
1580                 x = dimensions[0];
1581                 w = dimensions[2];
1582             }
1583             if (dir == 0 || dir == 2) { /* vert */
1584                 y = dimensions[1];
1585                 h = dimensions[3];
1586             }
1587             g_free(dimensions);
1588         } else {
1589             /* pick some fallbacks... */
1590             if (dir == 0 || dir == 1) { /* horz */
1591                 x = screen_area(self->desktop)->x +
1592                     screen_area(self->desktop)->width / 4;
1593                 w = screen_area(self->desktop)->width / 2;
1594             }
1595             if (dir == 0 || dir == 2) { /* vert */
1596                 y = screen_area(self->desktop)->y +
1597                     screen_area(self->desktop)->height / 4;
1598                 h = screen_area(self->desktop)->height / 2;
1599             }
1600         }
1601     }
1602
1603     if (dir == 0 || dir == 1) /* horz */
1604         self->max_horz = max;
1605     if (dir == 0 || dir == 2) /* vert */
1606         self->max_vert = max;
1607
1608     if (!self->max_horz && !self->max_vert)
1609         PROP_ERASE(self->window, openbox_premax);
1610
1611     client_change_state(self); /* change the state hints on the client */
1612
1613     /* figure out where the client should be going */
1614     frame_frame_gravity(self->frame, &x, &y);
1615     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1616 }
1617
1618 void client_shade(Client *self, gboolean shade)
1619 {
1620     if (!(self->functions & Func_Shade) || /* can't */
1621         self->shaded == shade) return;     /* already done */
1622
1623     /* when we're iconic, don't change the wmstate */
1624     if (!self->iconic)
1625         self->wmstate = shade ? IconicState : NormalState;
1626     self->shaded = shade;
1627     client_change_state(self);
1628     engine_frame_adjust_size(self->frame);
1629 }
1630
1631 void client_close(Client *self)
1632 {
1633     XEvent ce;
1634
1635     if (!(self->functions & Func_Close)) return;
1636
1637     /*
1638       XXX: itd be cool to do timeouts and shit here for killing the client's
1639       process off
1640       like... if the window is around after 5 seconds, then the close button
1641       turns a nice red, and if this function is called again, the client is
1642       explicitly killed.
1643     */
1644
1645     ce.xclient.type = ClientMessage;
1646     ce.xclient.message_type =  prop_atoms.wm_protocols;
1647     ce.xclient.display = ob_display;
1648     ce.xclient.window = self->window;
1649     ce.xclient.format = 32;
1650     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
1651     ce.xclient.data.l[1] = CurrentTime;
1652     ce.xclient.data.l[2] = 0l;
1653     ce.xclient.data.l[3] = 0l;
1654     ce.xclient.data.l[4] = 0l;
1655     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1656 }
1657
1658 void client_set_desktop(Client *self, guint target)
1659 {
1660     guint old, i;
1661
1662     if (target == self->desktop) return;
1663
1664     g_message("Setting desktop %u\n", target);
1665
1666     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
1667
1668     old = self->desktop;
1669     self->desktop = target;
1670     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
1671     /* the frame can display the current desktop state */
1672     engine_frame_adjust_state(self->frame);
1673     /* 'move' the window to the new desktop */
1674     client_showhide(self);
1675     screen_update_struts();
1676
1677     /* update the focus lists */
1678     if (old == DESKTOP_ALL) {
1679         for (i = 0; i < screen_num_desktops; ++i)
1680             focus_order[i] = g_list_remove(focus_order[i], self);
1681     } else {
1682         focus_order[old] = g_list_remove(focus_order[old], self);
1683     }
1684     if (target == DESKTOP_ALL) {
1685         for (i = 0; i < screen_num_desktops; ++i)
1686             focus_order[i] = g_list_prepend(focus_order[i], self);
1687     } else {
1688         focus_order[target] = g_list_prepend(focus_order[target], self);
1689     }
1690
1691     dispatch_client(Event_Client_Desktop, self, target, old);
1692 }
1693
1694 static Client *search_modal_tree(Client *node, Client *skip)
1695 {
1696     GSList *it;
1697     Client *ret;
1698
1699     for (it = node->transients; it != NULL; it = it->next) {
1700         Client *c = it->data;
1701         if (c == skip) continue; /* circular? */
1702         if ((ret = search_modal_tree(c, skip))) return ret;
1703         if (c->modal) return c;
1704     }
1705     return NULL;
1706 }
1707
1708 Client *client_find_modal_child(Client *self)
1709 {
1710     return search_modal_tree(self, self);
1711 }
1712
1713 gboolean client_validate(Client *self)
1714 {
1715     XEvent e;
1716
1717     XSync(ob_display, FALSE); /* get all events on the server */
1718
1719     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
1720         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
1721         XPutBackEvent(ob_display, &e);
1722         return FALSE;
1723     }
1724
1725     return TRUE;
1726 }
1727
1728 void client_set_wm_state(Client *self, long state)
1729 {
1730     if (state == self->wmstate) return; /* no change */
1731
1732     switch (state) {
1733     case IconicState:
1734         client_iconify(self, TRUE, TRUE);
1735         break;
1736     case NormalState:
1737         client_iconify(self, FALSE, TRUE);
1738         break;
1739     }
1740 }
1741
1742 void client_set_state(Client *self, Atom action, long data1, long data2)
1743 {
1744     gboolean shaded = self->shaded;
1745     gboolean fullscreen = self->fullscreen;
1746     gboolean max_horz = self->max_horz;
1747     gboolean max_vert = self->max_vert;
1748     int i;
1749
1750     if (!(action == prop_atoms.net_wm_state_add ||
1751           action == prop_atoms.net_wm_state_remove ||
1752           action == prop_atoms.net_wm_state_toggle))
1753         /* an invalid action was passed to the client message, ignore it */
1754         return;
1755
1756     for (i = 0; i < 2; ++i) {
1757         Atom state = i == 0 ? data1 : data2;
1758
1759         if (!state) continue;
1760
1761         /* if toggling, then pick whether we're adding or removing */
1762         if (action == prop_atoms.net_wm_state_toggle) {
1763             if (state == prop_atoms.net_wm_state_modal)
1764                 action = self->modal ? prop_atoms.net_wm_state_remove :
1765                     prop_atoms.net_wm_state_add;
1766             else if (state == prop_atoms.net_wm_state_maximized_vert)
1767                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
1768                     prop_atoms.net_wm_state_add;
1769             else if (state == prop_atoms.net_wm_state_maximized_horz)
1770                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
1771                     prop_atoms.net_wm_state_add;
1772             else if (state == prop_atoms.net_wm_state_shaded)
1773                 action = self->shaded ? prop_atoms.net_wm_state_remove :
1774                     prop_atoms.net_wm_state_add;
1775             else if (state == prop_atoms.net_wm_state_skip_taskbar)
1776                 action = self->skip_taskbar ?
1777                     prop_atoms.net_wm_state_remove :
1778                     prop_atoms.net_wm_state_add;
1779             else if (state == prop_atoms.net_wm_state_skip_pager)
1780                 action = self->skip_pager ?
1781                     prop_atoms.net_wm_state_remove :
1782                     prop_atoms.net_wm_state_add;
1783             else if (state == prop_atoms.net_wm_state_fullscreen)
1784                 action = self->fullscreen ?
1785                     prop_atoms.net_wm_state_remove :
1786                     prop_atoms.net_wm_state_add;
1787             else if (state == prop_atoms.net_wm_state_above)
1788                 action = self->above ? prop_atoms.net_wm_state_remove :
1789                     prop_atoms.net_wm_state_add;
1790             else if (state == prop_atoms.net_wm_state_below)
1791                 action = self->below ? prop_atoms.net_wm_state_remove :
1792                     prop_atoms.net_wm_state_add;
1793         }
1794
1795         if (action == prop_atoms.net_wm_state_add) {
1796             if (state == prop_atoms.net_wm_state_modal) {
1797                 /* XXX raise here or something? */
1798                 self->modal = TRUE;
1799             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1800                 max_vert = TRUE;
1801             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1802                 max_horz = TRUE;
1803             } else if (state == prop_atoms.net_wm_state_shaded) {
1804                 shaded = TRUE;
1805             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1806                 self->skip_taskbar = TRUE;
1807             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1808                 self->skip_pager = TRUE;
1809             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1810                 fullscreen = TRUE;
1811             } else if (state == prop_atoms.net_wm_state_above) {
1812                 self->above = TRUE;
1813             } else if (state == prop_atoms.net_wm_state_below) {
1814                 self->below = TRUE;
1815             }
1816
1817         } else { /* action == prop_atoms.net_wm_state_remove */
1818             if (state == prop_atoms.net_wm_state_modal) {
1819                 self->modal = FALSE;
1820             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1821                 max_vert = FALSE;
1822             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1823                 max_horz = FALSE;
1824             } else if (state == prop_atoms.net_wm_state_shaded) {
1825                 shaded = FALSE;
1826             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1827                 self->skip_taskbar = FALSE;
1828             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1829                 self->skip_pager = FALSE;
1830             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1831                 fullscreen = FALSE;
1832             } else if (state == prop_atoms.net_wm_state_above) {
1833                 self->above = FALSE;
1834             } else if (state == prop_atoms.net_wm_state_below) {
1835                 self->below = FALSE;
1836             }
1837         }
1838     }
1839     if (max_horz != self->max_horz || max_vert != self->max_vert) {
1840         if (max_horz != self->max_horz && max_vert != self->max_vert) {
1841             /* toggling both */
1842             if (max_horz == max_vert) { /* both going the same way */
1843                 client_maximize(self, max_horz, 0, TRUE);
1844             } else {
1845                 client_maximize(self, max_horz, 1, TRUE);
1846                 client_maximize(self, max_vert, 2, TRUE);
1847             }
1848         } else {
1849             /* toggling one */
1850             if (max_horz != self->max_horz)
1851                 client_maximize(self, max_horz, 1, TRUE);
1852             else
1853                 client_maximize(self, max_vert, 2, TRUE);
1854         }
1855     }
1856     /* change fullscreen state before shading, as it will affect if the window
1857        can shade or not */
1858     if (fullscreen != self->fullscreen)
1859         client_fullscreen(self, fullscreen, TRUE);
1860     if (shaded != self->shaded)
1861         client_shade(self, shaded);
1862     client_calc_layer(self);
1863     client_change_state(self); /* change the hint to relect these changes */
1864 }
1865
1866 gboolean client_focus(Client *self)
1867 {
1868     XEvent ev;
1869     Client *child;
1870
1871     /* if we have a modal child, then focus it, not us */
1872     child = client_find_modal_child(self);
1873     if (child)
1874         return client_focus(child);
1875
1876     /* won't try focus if the client doesn't want it, or if the window isn't
1877        visible on the screen */
1878     if (!(self->frame->visible &&
1879           (self->can_focus || self->focus_notify)))
1880         return FALSE;
1881
1882     /* do a check to see if the window has already been unmapped or destroyed
1883        do this intelligently while watching out for unmaps we've generated
1884        (ignore_unmaps > 0) */
1885     if (XCheckTypedWindowEvent(ob_display, self->window,
1886                                DestroyNotify, &ev)) {
1887         XPutBackEvent(ob_display, &ev);
1888         return FALSE;
1889     }
1890     while (XCheckTypedWindowEvent(ob_display, self->window,
1891                                   UnmapNotify, &ev)) {
1892         if (self->ignore_unmaps) {
1893             self->ignore_unmaps--;
1894         } else {
1895             XPutBackEvent(ob_display, &ev);
1896             return FALSE;
1897         }
1898     }
1899
1900     if (client_focused(self))
1901         return TRUE;
1902
1903     if (self->can_focus)
1904         XSetInputFocus(ob_display, self->window, RevertToNone, CurrentTime);
1905
1906     if (self->focus_notify) {
1907         XEvent ce;
1908         ce.xclient.type = ClientMessage;
1909         ce.xclient.message_type = prop_atoms.wm_protocols;
1910         ce.xclient.display = ob_display;
1911         ce.xclient.window = self->window;
1912         ce.xclient.format = 32;
1913         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
1914         ce.xclient.data.l[1] = event_lasttime;
1915         ce.xclient.data.l[2] = 0l;
1916         ce.xclient.data.l[3] = 0l;
1917         ce.xclient.data.l[4] = 0l;
1918         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1919     }
1920
1921     client_set_focused(self, TRUE);
1922
1923     /* XSync(ob_display, FALSE); XXX Why sync? */
1924     return TRUE;
1925 }
1926
1927 void client_unfocus(Client *self)
1928 {
1929     g_assert(focus_client == self);
1930     client_set_focused(self, FALSE);
1931 }
1932
1933 void client_set_focused(Client *self, gboolean focused)
1934 {
1935     if (focused) {
1936         if (focus_client != self) {
1937             focus_set_client(self);
1938
1939             /* focus state can affect the stacking layer */
1940             client_calc_layer(self);
1941
1942             engine_frame_adjust_focus(self->frame);
1943         }
1944     } else {
1945         if (focus_client == self)
1946             focus_set_client(NULL);
1947
1948         /* focus state can affect the stacking layer */
1949         client_calc_layer(self);
1950
1951         if (self->frame != NULL) /* unfocus can happen while being unmanaged */
1952             engine_frame_adjust_focus(self->frame);
1953     }
1954 }
1955
1956 gboolean client_focused(Client *self)
1957 {
1958     return self == focus_client;
1959 }