dont check for != NULL before freeing. pointless.
[dana/openbox.git] / 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 }