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