fix for how base-size is used to comply with the icccm
[dana/openbox.git] / openbox / client.c
1 #include "client.h"
2 #include "dock.h"
3 #include "xerror.h"
4 #include "startup.h"
5 #include "screen.h"
6 #include "moveresize.h"
7 #include "prop.h"
8 #include "extensions.h"
9 #include "frame.h"
10 #include "event.h"
11 #include "grab.h"
12 #include "focus.h"
13 #include "stacking.h"
14 #include "dispatch.h"
15 #include "openbox.h"
16 #include "group.h"
17 #include "config.h"
18 #include "menu.h"
19 #include "render/render.h"
20
21 #include <glib.h>
22 #include <X11/Xutil.h>
23
24 /*! The event mask to grab on client windows */
25 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
26                           StructureNotifyMask)
27
28 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
29                                 ButtonMotionMask)
30
31 GList      *client_list      = NULL;
32
33 static void client_get_all(Client *self);
34 static void client_toggle_border(Client *self, gboolean show);
35 static void client_get_area(Client *self);
36 static void client_get_desktop(Client *self);
37 static void client_get_state(Client *self);
38 static void client_get_shaped(Client *self);
39 static void client_get_mwm_hints(Client *self);
40 static void client_get_gravity(Client *self);
41 static void client_showhide(Client *self);
42 static void client_change_allowed_actions(Client *self);
43 static void client_change_state(Client *self);
44 static void client_apply_startup_state(Client *self);
45
46 void client_startup()
47 {
48     client_set_list();
49 }
50
51 void client_shutdown()
52 {
53 }
54
55 void client_set_list()
56 {
57     Window *windows, *win_it;
58     GList *it;
59     guint size = g_list_length(client_list);
60
61     /* create an array of the window ids */
62     if (size > 0) {
63         windows = g_new(Window, size);
64         win_it = windows;
65         for (it = client_list; it != NULL; it = it->next, ++win_it)
66             *win_it = ((Client*)it->data)->window;
67     } else
68         windows = NULL;
69
70     PROP_SETA32(ob_root, net_client_list, window, (guint32*)windows, size);
71
72     if (windows)
73         g_free(windows);
74
75     stacking_set_list();
76 }
77
78 /*
79 void client_foreach_transient(Client *self, ClientForeachFunc func, void *data)
80 {
81     GSList *it;
82
83     for (it = self->transients; it; it = it->next) {
84         if (!func(it->data, data)) return;
85         client_foreach_transient(it->data, func, data);
86     }
87 }
88
89 void client_foreach_ancestor(Client *self, ClientForeachFunc func, void *data)
90 {
91     if (self->transient_for) {
92         if (self->transient_for != TRAN_GROUP) {
93             if (!func(self->transient_for, data)) return;
94             client_foreach_ancestor(self->transient_for, func, data);
95         } else {
96             GSList *it;
97
98             for (it = self->group->members; it; it = it->next)
99                 if (it->data != self &&
100                     !((Client*)it->data)->transient_for) {
101                     if (!func(it->data, data)) return;
102                     client_foreach_ancestor(it->data, func, data);
103                 }
104         }
105     }
106 }
107 */
108
109 void client_manage_all()
110 {
111     unsigned int i, j, nchild;
112     Window w, *children;
113     XWMHints *wmhints;
114     XWindowAttributes attrib;
115
116     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
117
118     /* remove all icon windows from the list */
119     for (i = 0; i < nchild; i++) {
120         if (children[i] == None) continue;
121         wmhints = XGetWMHints(ob_display, children[i]);
122         if (wmhints) {
123             if ((wmhints->flags & IconWindowHint) &&
124                 (wmhints->icon_window != children[i]))
125                 for (j = 0; j < nchild; j++)
126                     if (children[j] == wmhints->icon_window) {
127                         children[j] = None;
128                         break;
129                     }
130             XFree(wmhints);
131         }
132     }
133
134     for (i = 0; i < nchild; ++i) {
135         if (children[i] == None)
136             continue;
137         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
138             if (attrib.override_redirect) continue;
139
140             if (attrib.map_state != IsUnmapped)
141                 client_manage(children[i]);
142         }
143     }
144     XFree(children);
145
146     /* stack them as they were on startup!
147        why with stacking_lower? Why, because then windows who aren't in the
148        stacking list are on the top where you can see them instead of buried
149        at the bottom! */
150     for (i = startup_stack_size; i > 0; --i) {
151         ObWindow *obw;
152
153         w = startup_stack_order[i-1];
154         obw = g_hash_table_lookup(window_map, &w);
155         if (obw) {
156             g_assert(WINDOW_IS_CLIENT(obw));
157             stacking_lower(CLIENT_AS_WINDOW(obw));
158         }
159     }
160     g_free(startup_stack_order);
161     startup_stack_order = NULL;
162     startup_stack_size = 0;
163
164     if (config_focus_new) {
165         ObWindow *active;
166
167         active = g_hash_table_lookup(window_map, &startup_active);
168         if (active) {
169             g_assert(WINDOW_IS_CLIENT(active));
170             if (!client_focus(WINDOW_AS_CLIENT(active)))
171                 focus_fallback(Fallback_NoFocus);
172         } else
173             focus_fallback(Fallback_NoFocus);
174     }
175 }
176
177 void client_manage(Window window)
178 {
179     Client *self;
180     XEvent e;
181     XWindowAttributes attrib;
182     XSetWindowAttributes attrib_set;
183     XWMHints *wmhint;
184     gboolean activate = FALSE;
185
186     grab_server(TRUE);
187
188     /* check if it has already been unmapped by the time we started mapping
189        the grab does a sync so we don't have to here */
190     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
191         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
192         XPutBackEvent(ob_display, &e);
193
194         grab_server(FALSE);
195         return; /* don't manage it */
196     }
197
198     /* make sure it isn't an override-redirect window */
199     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
200         attrib.override_redirect) {
201         grab_server(FALSE);
202         return; /* don't manage it */
203     }
204   
205     /* is the window a docking app */
206     if ((wmhint = XGetWMHints(ob_display, window))) {
207         if ((wmhint->flags & StateHint) &&
208             wmhint->initial_state == WithdrawnState) {
209             dock_add(window, wmhint);
210             grab_server(FALSE);
211             XFree(wmhint);
212             return;
213         }
214         XFree(wmhint);
215     }
216
217     g_message("Managing window: %lx", window);
218
219     /* choose the events we want to receive on the CLIENT window */
220     attrib_set.event_mask = CLIENT_EVENTMASK;
221     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
222     XChangeWindowAttributes(ob_display, window,
223                             CWEventMask|CWDontPropagate, &attrib_set);
224
225
226     /* create the Client struct, and populate it from the hints on the
227        window */
228     self = g_new(Client, 1);
229     self->obwin.type = Window_Client;
230     self->window = window;
231     client_get_all(self);
232
233     /* remove the client's border (and adjust re gravity) */
234     client_toggle_border(self, FALSE);
235      
236     /* specify that if we exit, the window should not be destroyed and should
237        be reparented back to root automatically */
238     XChangeSaveSet(ob_display, window, SetModeInsert);
239
240     /* create the decoration frame for the client window */
241     self->frame = frame_new();
242
243     frame_grab_client(self->frame, self);
244
245     client_apply_startup_state(self);
246
247     grab_server(FALSE);
248
249     /* add to client list/map */
250     client_list = g_list_append(client_list, self);
251     g_hash_table_insert(window_map, &self->window, self);
252
253     /* update the focus lists */
254     focus_order_add_new(self);
255
256     /* focus the new window? */
257     if (ob_state != State_Starting && config_focus_new &&
258         (self->type == Type_Normal || self->type == Type_Dialog)) {
259         gboolean group_foc = FALSE;
260         
261         if (self->group) {
262             GSList *it;
263
264             for (it = self->group->members; it; it = it->next) {
265                 if (client_focused(it->data)) {
266                     group_foc = TRUE;
267                     break;
268                 }
269             }
270         }
271         /* note the check against Type_Normal/Dialog, not client_normal(self),
272            which would also include other types. in this case we want more
273            strict rules for focus */
274         if ((group_foc ||
275              (!self->transient_for && (!self->group ||
276                                        !self->group->members->next))) ||
277             client_search_focus_tree_full(self) ||
278             !focus_client ||
279             !client_normal(focus_client)) {
280             /* activate the window */
281             stacking_add(CLIENT_AS_WINDOW(self));
282             activate = TRUE;
283         } else {
284             /* try to not get in the way */
285             stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
286         }
287     } else {
288         stacking_add(CLIENT_AS_WINDOW(self));
289     }
290
291     screen_update_struts();
292
293     /* make sure the window is visible */
294     client_move_onscreen(self);
295
296     dispatch_client(Event_Client_New, self, 0, 0);
297
298     client_showhide(self);
299
300     if (activate) client_activate(self);
301
302     /* update the list hints */
303     client_set_list();
304
305     dispatch_client(Event_Client_Mapped, self, 0, 0);
306
307     g_message("Managed window 0x%lx (%s)", window, self->class);
308 }
309
310 void client_unmanage_all()
311 {
312     while (client_list != NULL)
313         client_unmanage(client_list->data);
314 }
315
316 /* called by client_unmanage() to close any menus referencing this client */
317 void client_close_menus(gpointer key, gpointer value, gpointer self)
318 {
319     if (((Menu *)value)->client == (Client *)self)
320         menu_hide((Menu *)value);
321 }
322
323 void client_unmanage(Client *self)
324 {
325     int j;
326     GSList *it;
327
328     g_message("Unmanaging window: %lx (%s)", self->window, self->class);
329
330     dispatch_client(Event_Client_Destroy, self, 0, 0);
331     g_assert(self != NULL);
332
333     /* remove the window from our save set */
334     XChangeSaveSet(ob_display, self->window, SetModeDelete);
335
336     /* we dont want events no more */
337     XSelectInput(ob_display, self->window, NoEventMask);
338
339     frame_hide(self->frame);
340
341     client_list = g_list_remove(client_list, self);
342     stacking_remove(self);
343     g_hash_table_remove(window_map, &self->window);
344
345     /* update the focus lists */
346     focus_order_remove(self);
347
348     /* once the client is out of the list, update the struts to remove it's
349        influence */
350     screen_update_struts();
351
352     /* tell our parent(s) that we're gone */
353     if (self->transient_for == TRAN_GROUP) { /* transient of group */
354         GSList *it;
355
356         for (it = self->group->members; it; it = it->next)
357             if (it->data != self)
358                 ((Client*)it->data)->transients =
359                     g_slist_remove(((Client*)it->data)->transients, self);
360     } else if (self->transient_for) {        /* transient of window */
361         self->transient_for->transients =
362             g_slist_remove(self->transient_for->transients, self);
363     }
364
365     /* tell our transients that we're gone */
366     for (it = self->transients; it != NULL; it = it->next) {
367         if (((Client*)it->data)->transient_for != TRAN_GROUP) {
368             ((Client*)it->data)->transient_for = NULL;
369             client_calc_layer(it->data);
370         }
371     }
372
373     if (moveresize_client == self)
374         moveresize_end(TRUE);
375
376     /* close any windows that are attached to this window */
377     g_hash_table_foreach(menu_hash, client_close_menus, self);
378
379     
380     if (focus_client == self) {
381         XEvent e;
382
383         /* focus the last focused window on the desktop, and ignore enter
384            events from the unmap so it doesnt mess with the focus */
385         while (XCheckTypedEvent(ob_display, EnterNotify, &e));
386         client_unfocus(self);
387     }
388
389     /* remove from its group */
390     if (self->group) {
391         group_remove(self->group, self);
392         self->group = NULL;
393     }
394
395     /* dispatch the unmapped event */
396     dispatch_client(Event_Client_Unmapped, self, 0, 0);
397     g_assert(self != NULL);
398
399     /* give the client its border back */
400     client_toggle_border(self, TRUE);
401
402     /* reparent the window out of the frame, and free the frame */
403     frame_release_client(self->frame, self);
404     self->frame = NULL;
405      
406     if (ob_state != State_Exiting) {
407         /* these values should not be persisted across a window
408            unmapping/mapping */
409         prop_erase(self->window, prop_atoms.net_wm_desktop);
410         prop_erase(self->window, prop_atoms.net_wm_state);
411     } else {
412         /* if we're left in an iconic state, the client wont be mapped. this is
413            bad, since we will no longer be managing the window on restart */
414         if (self->iconic)
415             XMapWindow(ob_display, self->window);
416     }
417
418
419     g_message("Unmanaged window 0x%lx", self->window);
420
421     /* free all data allocated in the client struct */
422     g_slist_free(self->transients);
423     for (j = 0; j < self->nicons; ++j)
424         g_free(self->icons[j].data);
425     if (self->nicons > 0)
426         g_free(self->icons);
427     g_free(self->title);
428     g_free(self->icon_title);
429     g_free(self->name);
430     g_free(self->class);
431     g_free(self->role);
432     g_free(self);
433      
434     /* update the list hints */
435     client_set_list();
436 }
437
438 void client_move_onscreen(Client *self)
439 {
440     Rect *a;
441     int x = self->frame->area.x, y = self->frame->area.y;
442
443     a = screen_area(self->desktop);
444     if (x >= a->x + a->width - 1)
445         x = a->x + a->width - self->frame->area.width;
446     if (y >= a->y + a->height - 1)
447         y = a->y + a->height - self->frame->area.height;
448     if (x + self->frame->area.width - 1 < a->x)
449         x = a->x;
450     if (y + self->frame->area.height - 1< a->y)
451         y = a->y;
452
453     frame_frame_gravity(self->frame, &x, &y); /* get where the client
454                                                  should be */
455     client_configure(self , Corner_TopLeft, x, y,
456                      self->area.width, self->area.height,
457                      TRUE, TRUE);
458 }
459
460 static void client_toggle_border(Client *self, gboolean show)
461 {
462     /* adjust our idea of where the client is, based on its border. When the
463        border is removed, the client should now be considered to be in a
464        different position.
465        when re-adding the border to the client, the same operation needs to be
466        reversed. */
467     int oldx = self->area.x, oldy = self->area.y;
468     int x = oldx, y = oldy;
469     switch(self->gravity) {
470     default:
471     case NorthWestGravity:
472     case WestGravity:
473     case SouthWestGravity:
474         break;
475     case NorthEastGravity:
476     case EastGravity:
477     case SouthEastGravity:
478         if (show) x -= self->border_width * 2;
479         else      x += self->border_width * 2;
480         break;
481     case NorthGravity:
482     case SouthGravity:
483     case CenterGravity:
484     case ForgetGravity:
485     case StaticGravity:
486         if (show) x -= self->border_width;
487         else      x += self->border_width;
488         break;
489     }
490     switch(self->gravity) {
491     default:
492     case NorthWestGravity:
493     case NorthGravity:
494     case NorthEastGravity:
495         break;
496     case SouthWestGravity:
497     case SouthGravity:
498     case SouthEastGravity:
499         if (show) y -= self->border_width * 2;
500         else      y += self->border_width * 2;
501         break;
502     case WestGravity:
503     case EastGravity:
504     case CenterGravity:
505     case ForgetGravity:
506     case StaticGravity:
507         if (show) y -= self->border_width;
508         else      y += self->border_width;
509         break;
510     }
511     self->area.x = x;
512     self->area.y = y;
513
514     if (show) {
515         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
516
517         /* move the client so it is back it the right spot _with_ its
518            border! */
519         if (x != oldx || y != oldy)
520             XMoveWindow(ob_display, self->window, x, y);
521     } else
522         XSetWindowBorderWidth(ob_display, self->window, 0);
523 }
524
525
526 static void client_get_all(Client *self)
527 {
528     /* update EVERYTHING!! */
529
530     self->ignore_unmaps = 0;
531   
532     /* defaults */
533     self->frame = NULL;
534     self->title = self->icon_title = NULL;
535     self->title_count = 1;
536     self->name = self->class = self->role = NULL;
537     self->wmstate = NormalState;
538     self->transient = FALSE;
539     self->transients = NULL;
540     self->transient_for = NULL;
541     self->layer = -1;
542     self->urgent = FALSE;
543     self->positioned = FALSE;
544     self->disabled_decorations = 0;
545     self->group = NULL;
546     self->nicons = 0;
547
548     client_get_area(self);
549     client_update_transient_for(self);
550     client_update_wmhints(self);
551     client_get_desktop(self);
552     client_get_state(self);
553     client_get_shaped(self);
554
555     client_get_mwm_hints(self);
556     client_get_type(self);/* this can change the mwmhints for special cases */
557
558     client_update_protocols(self);
559
560     client_get_gravity(self); /* get the attribute gravity */
561     client_update_normal_hints(self); /* this may override the attribute
562                                          gravity */
563
564     /* got the type, the mwmhints, the protocols, and the normal hints
565        (min/max sizes), so we're ready to set up the decorations/functions */
566     client_setup_decor_and_functions(self);
567   
568     client_update_title(self);
569     client_update_class(self);
570     client_update_strut(self);
571     client_update_icons(self);
572
573     client_change_state(self);
574 }
575
576 static void client_get_area(Client *self)
577 {
578     XWindowAttributes wattrib;
579     Status ret;
580   
581     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
582     g_assert(ret != BadWindow);
583
584     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
585     self->border_width = wattrib.border_width;
586 }
587
588 static void client_get_desktop(Client *self)
589 {
590     guint32 d;
591
592     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
593         if (d >= screen_num_desktops && d != DESKTOP_ALL)
594             d = screen_num_desktops - 1;
595         self->desktop = d;
596     } else { 
597         gboolean trdesk = FALSE;
598
599        if (self->transient_for) {
600            if (self->transient_for != TRAN_GROUP) {
601                 self->desktop = self->transient_for->desktop;
602                 trdesk = TRUE;
603             } else {
604                 GSList *it;
605
606                 for (it = self->group->members; it; it = it->next)
607                     if (it->data != self &&
608                         !((Client*)it->data)->transient_for) {
609                         self->desktop = ((Client*)it->data)->desktop;
610                         trdesk = TRUE;
611                         break;
612                     }
613             }
614        }
615        if (!trdesk)
616            /* defaults to the current desktop */
617            self->desktop = screen_desktop;
618
619         /* set the desktop hint, to make sure that it always exists */
620         PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
621     }
622 }
623
624 static void client_get_state(Client *self)
625 {
626     guint32 *state;
627     guint num;
628   
629     self->modal = self->shaded = self->max_horz = self->max_vert =
630         self->fullscreen = self->above = self->below = self->iconic =
631         self->skip_taskbar = self->skip_pager = FALSE;
632
633     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
634         gulong i;
635         for (i = 0; i < num; ++i) {
636             if (state[i] == prop_atoms.net_wm_state_modal)
637                 self->modal = TRUE;
638             else if (state[i] == prop_atoms.net_wm_state_shaded)
639                 self->shaded = TRUE;
640             else if (state[i] == prop_atoms.net_wm_state_hidden)
641                 self->iconic = TRUE;
642             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
643                 self->skip_taskbar = TRUE;
644             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
645                 self->skip_pager = TRUE;
646             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
647                 self->fullscreen = TRUE;
648             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
649                 self->max_vert = TRUE;
650             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
651                 self->max_horz = TRUE;
652             else if (state[i] == prop_atoms.net_wm_state_above)
653                 self->above = TRUE;
654             else if (state[i] == prop_atoms.net_wm_state_below)
655                 self->below = TRUE;
656         }
657
658         g_free(state);
659     }
660 }
661
662 static void client_get_shaped(Client *self)
663 {
664     self->shaped = FALSE;
665 #ifdef   SHAPE
666     if (extensions_shape) {
667         int foo;
668         guint ufoo;
669         int s;
670
671         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
672
673         XShapeQueryExtents(ob_display, self->window, &s, &foo,
674                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
675                            &ufoo);
676         self->shaped = (s != 0);
677     }
678 #endif
679 }
680
681 void client_update_transient_for(Client *self)
682 {
683     Window t = None;
684     Client *c = NULL;
685
686     if (XGetTransientForHint(ob_display, self->window, &t)) {
687         self->transient = TRUE;
688         if (t != self->window) { /* cant be transient to itself! */
689             c = g_hash_table_lookup(window_map, &t);
690             /* if this happens then we need to check for it*/
691             g_assert(c != self);
692             g_assert(!c || WINDOW_IS_CLIENT(c));
693             
694             if (!c && self->group) {
695                 /* not transient to a client, see if it is transient for a
696                    group */
697                 if (t == self->group->leader ||
698                     t == None ||
699                     t == ob_root) {
700                     /* window is a transient for its group! */
701                     c = TRAN_GROUP;
702                 }
703             }
704         }
705     } else
706         self->transient = FALSE;
707
708     /* if anything has changed... */
709     if (c != self->transient_for) {
710         if (self->transient_for == TRAN_GROUP) { /* transient of group */
711             GSList *it;
712
713             /* remove from old parents */
714             for (it = self->group->members; it; it = it->next)
715                 if (it->data != self &&
716                     !((Client*)it->data)->transient_for)
717                     ((Client*)it->data)->transients =
718                         g_slist_remove(((Client*)it->data)->transients, self);
719         } else if (self->transient_for != NULL) { /* transient of window */
720             /* remove from old parent */
721             self->transient_for->transients =
722                 g_slist_remove(self->transient_for->transients, self);
723         }
724         self->transient_for = c;
725         if (self->transient_for == TRAN_GROUP) { /* transient of group */
726             GSList *it;
727
728             /* add to new parents */
729             for (it = self->group->members; it; it = it->next)
730                 if (it->data != self &&
731                     !((Client*)it->data)->transient_for)
732                     ((Client*)it->data)->transients =
733                         g_slist_append(((Client*)it->data)->transients, self);
734
735             /* remove all transients which are in the group, that causes
736                circlular pointer hell of doom */
737             for (it = self->group->members; it; it = it->next) {
738                 GSList *sit, *next;
739                 for (sit = self->transients; sit; sit = next) {
740                     next = sit->next;
741                     if (sit->data == it->data)
742                         self->transients = g_slist_remove(self->transients,
743                                                           sit->data);
744                 }
745             }
746         } else if (self->transient_for != NULL) { /* transient of window */
747             /* add to new parent */
748             self->transient_for->transients =
749                 g_slist_append(self->transient_for->transients, self);
750         }
751     }
752 }
753
754 static void client_get_mwm_hints(Client *self)
755 {
756     guint num;
757     guint32 *hints;
758
759     self->mwmhints.flags = 0; /* default to none */
760
761     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
762                     &hints, &num)) {
763         if (num >= MWM_ELEMENTS) {
764             self->mwmhints.flags = hints[0];
765             self->mwmhints.functions = hints[1];
766             self->mwmhints.decorations = hints[2];
767         }
768         g_free(hints);
769     }
770 }
771
772 void client_get_type(Client *self)
773 {
774     guint num, i;
775     guint32 *val;
776
777     self->type = -1;
778   
779     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
780         /* use the first value that we know about in the array */
781         for (i = 0; i < num; ++i) {
782             if (val[i] == prop_atoms.net_wm_window_type_desktop)
783                 self->type = Type_Desktop;
784             else if (val[i] == prop_atoms.net_wm_window_type_dock)
785                 self->type = Type_Dock;
786             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
787                 self->type = Type_Toolbar;
788             else if (val[i] == prop_atoms.net_wm_window_type_menu)
789                 self->type = Type_Menu;
790             else if (val[i] == prop_atoms.net_wm_window_type_utility)
791                 self->type = Type_Utility;
792             else if (val[i] == prop_atoms.net_wm_window_type_splash)
793                 self->type = Type_Splash;
794             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
795                 self->type = Type_Dialog;
796             else if (val[i] == prop_atoms.net_wm_window_type_normal)
797                 self->type = Type_Normal;
798             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
799                 /* prevent this window from getting any decor or
800                    functionality */
801                 self->mwmhints.flags &= (MwmFlag_Functions |
802                                          MwmFlag_Decorations);
803                 self->mwmhints.decorations = 0;
804                 self->mwmhints.functions = 0;
805             }
806             if (self->type != (WindowType) -1)
807                 break; /* grab the first legit type */
808         }
809         g_free(val);
810     }
811     
812     if (self->type == (WindowType) -1) {
813         /*the window type hint was not set, which means we either classify
814           ourself as a normal window or a dialog, depending on if we are a
815           transient. */
816         if (self->transient)
817             self->type = Type_Dialog;
818         else
819             self->type = Type_Normal;
820     }
821 }
822
823 void client_update_protocols(Client *self)
824 {
825     guint32 *proto;
826     guint num_return, i;
827
828     self->focus_notify = FALSE;
829     self->delete_window = FALSE;
830
831     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
832         for (i = 0; i < num_return; ++i) {
833             if (proto[i] == prop_atoms.wm_delete_window) {
834                 /* this means we can request the window to close */
835                 self->delete_window = TRUE;
836             } else if (proto[i] == prop_atoms.wm_take_focus)
837                 /* if this protocol is requested, then the window will be
838                    notified whenever we want it to receive focus */
839                 self->focus_notify = TRUE;
840         }
841         g_free(proto);
842     }
843 }
844
845 static void client_get_gravity(Client *self)
846 {
847     XWindowAttributes wattrib;
848     Status ret;
849
850     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
851     g_assert(ret != BadWindow);
852     self->gravity = wattrib.win_gravity;
853 }
854
855 void client_update_normal_hints(Client *self)
856 {
857     XSizeHints size;
858     long ret;
859     int oldgravity = self->gravity;
860
861     /* defaults */
862     self->min_ratio = 0.0f;
863     self->max_ratio = 0.0f;
864     SIZE_SET(self->size_inc, 1, 1);
865     SIZE_SET(self->base_size, 0, 0);
866     SIZE_SET(self->min_size, 0, 0);
867     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
868
869     /* get the hints from the window */
870     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
871         self->positioned = !!(size.flags & (PPosition|USPosition));
872
873         if (size.flags & PWinGravity) {
874             self->gravity = size.win_gravity;
875       
876             /* if the client has a frame, i.e. has already been mapped and
877                is changing its gravity */
878             if (self->frame && self->gravity != oldgravity) {
879                 /* move our idea of the client's position based on its new
880                    gravity */
881                 self->area.x = self->frame->area.x;
882                 self->area.y = self->frame->area.y;
883                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
884             }
885         }
886
887         if (size.flags & PAspect) {
888             if (size.min_aspect.y)
889                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
890             if (size.max_aspect.y)
891                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
892         }
893
894         if (size.flags & PMinSize)
895             SIZE_SET(self->min_size, size.min_width, size.min_height);
896     
897         if (size.flags & PMaxSize)
898             SIZE_SET(self->max_size, size.max_width, size.max_height);
899     
900         if (size.flags & PBaseSize)
901             SIZE_SET(self->base_size, size.base_width, size.base_height);
902     
903         if (size.flags & PResizeInc)
904             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
905     }
906 }
907
908 void client_setup_decor_and_functions(Client *self)
909 {
910     /* start with everything (cept fullscreen) */
911     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
912         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize |
913         Decor_Shade;
914     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
915         Func_Shade;
916     if (self->delete_window) {
917         self->decorations |= Decor_Close;
918         self->functions |= Func_Close;
919     }
920
921     if (!(self->min_size.width < self->max_size.width ||
922           self->min_size.height < self->max_size.height)) {
923         self->decorations &= ~(Decor_Maximize | Decor_Handle);
924         self->functions &= ~(Func_Resize | Func_Maximize);
925     }
926
927     switch (self->type) {
928     case Type_Normal:
929         /* normal windows retain all of the possible decorations and
930            functionality, and are the only windows that you can fullscreen */
931         self->functions |= Func_Fullscreen;
932         break;
933
934     case Type_Dialog:
935     case Type_Utility:
936         /* these windows cannot be maximized */
937         self->decorations &= ~Decor_Maximize;
938         self->functions &= ~Func_Maximize;
939         break;
940
941     case Type_Menu:
942     case Type_Toolbar:
943         /* these windows get less functionality */
944         self->decorations &= ~(Decor_Iconify | Decor_Handle);
945         self->functions &= ~(Func_Iconify | Func_Resize);
946         break;
947
948     case Type_Desktop:
949     case Type_Dock:
950     case Type_Splash:
951         /* none of these windows are manipulated by the window manager */
952         self->decorations = 0;
953         self->functions = 0;
954         break;
955     }
956
957     /* Mwm Hints are applied subtractively to what has already been chosen for
958        decor and functionality */
959     if (self->mwmhints.flags & MwmFlag_Decorations) {
960         if (! (self->mwmhints.decorations & MwmDecor_All)) {
961             if (! (self->mwmhints.decorations & MwmDecor_Border))
962                 self->decorations &= ~Decor_Border;
963             if (! (self->mwmhints.decorations & MwmDecor_Handle))
964                 self->decorations &= ~Decor_Handle;
965             if (! (self->mwmhints.decorations & MwmDecor_Title))
966                 self->decorations &= ~Decor_Titlebar;
967             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
968                 self->decorations &= ~Decor_Iconify;
969             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
970                 self->decorations &= ~Decor_Maximize;
971         }
972     }
973
974     if (self->mwmhints.flags & MwmFlag_Functions) {
975         if (! (self->mwmhints.functions & MwmFunc_All)) {
976             if (! (self->mwmhints.functions & MwmFunc_Resize))
977                 self->functions &= ~Func_Resize;
978             if (! (self->mwmhints.functions & MwmFunc_Move))
979                 self->functions &= ~Func_Move;
980             if (! (self->mwmhints.functions & MwmFunc_Iconify))
981                 self->functions &= ~Func_Iconify;
982             if (! (self->mwmhints.functions & MwmFunc_Maximize))
983                 self->functions &= ~Func_Maximize;
984             /* dont let mwm hints kill the close button
985                if (! (self->mwmhints.functions & MwmFunc_Close))
986                self->functions &= ~Func_Close; */
987         }
988     }
989
990     /* can't maximize without moving/resizing */
991     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
992         self->functions &= ~(Func_Maximize | Func_Fullscreen);
993
994     /* finally, user specified disabled decorations are applied to subtract
995        decorations */
996     if (self->disabled_decorations & Decor_Titlebar)
997         self->decorations &= ~Decor_Titlebar;
998     if (self->disabled_decorations & Decor_Handle)
999         self->decorations &= ~Decor_Handle;
1000     if (self->disabled_decorations & Decor_Border)
1001         self->decorations &= ~Decor_Border;
1002     if (self->disabled_decorations & Decor_Iconify)
1003         self->decorations &= ~Decor_Iconify;
1004     if (self->disabled_decorations & Decor_Maximize)
1005         self->decorations &= ~Decor_Maximize;
1006     if (self->disabled_decorations & Decor_AllDesktops)
1007         self->decorations &= ~Decor_AllDesktops;
1008     if (self->disabled_decorations & Decor_Shade)
1009         self->decorations &= ~Decor_Shade;
1010     if (self->disabled_decorations & Decor_Close)
1011         self->decorations &= ~Decor_Close;
1012
1013     /* if we don't have a titlebar, then we cannot shade! */
1014     if (!(self->decorations & Decor_Titlebar))
1015         self->functions &= ~Func_Shade;
1016
1017     /* now we need to check against rules for the client's current state */
1018     if (self->fullscreen) {
1019         self->functions &= (Func_Close | Func_Fullscreen | Func_Iconify);
1020         self->decorations = 0;
1021     }
1022
1023     client_change_allowed_actions(self);
1024
1025     if (self->frame) {
1026         /* this makes sure that these windows appear on all desktops */
1027         if (self->type == Type_Desktop && self->desktop != DESKTOP_ALL)
1028             client_set_desktop(self, DESKTOP_ALL, FALSE);
1029
1030         /* change the decors on the frame, and with more/less decorations,
1031            we may also need to be repositioned */
1032         frame_adjust_area(self->frame, TRUE, TRUE);
1033         /* with new decor, the window's maximized size may change */
1034         client_reconfigure(self);
1035     } else {
1036         /* this makes sure that these windows appear on all desktops */
1037         if (self->type == Type_Desktop && self->desktop != DESKTOP_ALL)
1038             self->desktop = DESKTOP_ALL;
1039     }
1040 }
1041
1042 static void client_change_allowed_actions(Client *self)
1043 {
1044     guint32 actions[9];
1045     int num = 0;
1046
1047     /* desktop windows are kept on all desktops */
1048     if (self->type != Type_Desktop)
1049         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1050
1051     if (self->functions & Func_Shade)
1052         actions[num++] = prop_atoms.net_wm_action_shade;
1053     if (self->functions & Func_Close)
1054         actions[num++] = prop_atoms.net_wm_action_close;
1055     if (self->functions & Func_Move)
1056         actions[num++] = prop_atoms.net_wm_action_move;
1057     if (self->functions & Func_Iconify)
1058         actions[num++] = prop_atoms.net_wm_action_minimize;
1059     if (self->functions & Func_Resize)
1060         actions[num++] = prop_atoms.net_wm_action_resize;
1061     if (self->functions & Func_Fullscreen)
1062         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1063     if (self->functions & Func_Maximize) {
1064         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1065         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1066     }
1067
1068     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1069
1070     /* make sure the window isn't breaking any rules now */
1071
1072     if (!(self->functions & Func_Shade) && self->shaded) {
1073         if (self->frame) client_shade(self, FALSE);
1074         else self->shaded = FALSE;
1075     }
1076     if (!(self->functions & Func_Iconify) && self->iconic) {
1077         g_message("UNSETTING ICONIC");
1078         if (self->frame) client_iconify(self, FALSE, TRUE);
1079         else self->iconic = FALSE;
1080     }
1081     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
1082         if (self->frame) client_fullscreen(self, FALSE, TRUE);
1083         else self->fullscreen = FALSE;
1084     }
1085     if (!(self->functions & Func_Maximize) && (self->max_horz ||
1086                                                self->max_vert)) {
1087         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
1088         else self->max_vert = self->max_horz = FALSE;
1089     }
1090 }
1091
1092 void client_reconfigure(Client *self)
1093 {
1094     client_configure(self, Corner_TopLeft, self->area.x, self->area.y,
1095                      self->area.width, self->area.height, TRUE, TRUE);
1096 }
1097
1098 void client_update_wmhints(Client *self)
1099 {
1100     XWMHints *hints;
1101     gboolean ur = FALSE;
1102     GSList *it;
1103
1104     /* assume a window takes input if it doesnt specify */
1105     self->can_focus = TRUE;
1106   
1107     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1108         if (hints->flags & InputHint)
1109             self->can_focus = hints->input;
1110
1111         /* only do this when first managing the window *AND* when we aren't
1112            starting up! */
1113         if (ob_state != State_Starting && self->frame == NULL)
1114             if (hints->flags & StateHint)
1115                 self->iconic = hints->initial_state == IconicState;
1116
1117         if (hints->flags & XUrgencyHint)
1118             ur = TRUE;
1119
1120         if (!(hints->flags & WindowGroupHint))
1121             hints->window_group = None;
1122
1123         /* did the group state change? */
1124         if (hints->window_group !=
1125             (self->group ? self->group->leader : None)) {
1126             /* remove from the old group if there was one */
1127             if (self->group != NULL) {
1128                 /* remove transients of the group */
1129                 for (it = self->group->members; it; it = it->next)
1130                     self->transients = g_slist_remove(self->transients,
1131                                                       it->data);
1132                 group_remove(self->group, self);
1133                 self->group = NULL;
1134             }
1135             if (hints->window_group != None) {
1136                 self->group = group_add(hints->window_group, self);
1137
1138                 /* i can only have transients from the group if i am not
1139                    transient myself */
1140                 if (!self->transient_for) {
1141                     /* add other transients of the group that are already
1142                        set up */
1143                     for (it = self->group->members; it; it = it->next)
1144                         if (it->data != self &&
1145                             ((Client*)it->data)->transient_for == TRAN_GROUP)
1146                             self->transients = g_slist_append(self->transients,
1147                                                               it->data);
1148                 }
1149             }
1150
1151             /* the WM_HINTS can contain an icon */
1152             client_update_icons(self);
1153
1154             /* because the self->transient flag wont change from this call,
1155                we don't need to update the window's type and such, only its
1156                transient_for, and the transients lists of other windows in
1157                the group may be affected */
1158             client_update_transient_for(self);
1159         }
1160
1161         XFree(hints);
1162     }
1163
1164     if (ur != self->urgent) {
1165         self->urgent = ur;
1166         g_message("Urgent Hint for 0x%lx: %s", self->window,
1167                   ur ? "ON" : "OFF");
1168         /* fire the urgent callback if we're mapped, otherwise, wait until
1169            after we're mapped */
1170         if (self->frame)
1171             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1172     }
1173 }
1174
1175 void client_update_title(Client *self)
1176 {
1177     GList *it;
1178     guint32 nums;
1179     guint i;
1180     char *data = NULL;
1181     gboolean read_title;
1182
1183     g_free(self->title);
1184      
1185     /* try netwm */
1186     if (!PROP_GETS(self->window, net_wm_name, utf8, &data))
1187         /* try old x stuff */
1188         if (!PROP_GETS(self->window, wm_name, locale, &data))
1189             data = g_strdup("Unnamed Window");
1190
1191     /* look for duplicates and append a number */
1192     nums = 0;
1193     for (it = client_list; it; it = it->next)
1194         if (it->data != self) {
1195             Client *c = it->data;
1196             if (0 == strncmp(c->title, data, strlen(data)))
1197                 nums |= 1 << c->title_count;
1198         }
1199     /* find first free number */
1200     for (i = 1; i <= 32; ++i)
1201         if (!(nums & (1 << i))) {
1202             if (self->title_count == 1 || i == 1)
1203                 self->title_count = i;
1204             break;
1205         }
1206     /* dont display the number for the first window */
1207     if (self->title_count > 1) {
1208         char *vdata, *ndata;
1209         ndata = g_strdup_printf(" - [%u]", self->title_count);
1210         vdata = g_strconcat(data, ndata, NULL);
1211         g_free(ndata);
1212         g_free(data);
1213         data = vdata;
1214     }
1215
1216     PROP_SETS(self->window, net_wm_visible_name, data);
1217
1218     self->title = data;
1219
1220     if (self->frame)
1221         frame_adjust_title(self->frame);
1222
1223     /* update the icon title */
1224     data = NULL;
1225     g_free(self->icon_title);
1226
1227     read_title = TRUE;
1228     /* try netwm */
1229     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
1230         /* try old x stuff */
1231         if (!PROP_GETS(self->window, wm_icon_name, locale, &data)) {
1232             data = g_strdup(self->title);
1233             read_title = FALSE;
1234         }
1235
1236     /* append the title count, dont display the number for the first window */
1237     if (read_title && self->title_count > 1) {
1238         char *vdata, *ndata;
1239         ndata = g_strdup_printf(" - [%u]", self->title_count);
1240         vdata = g_strconcat(data, ndata, NULL);
1241         g_free(ndata);
1242         g_free(data);
1243         data = vdata;
1244     }
1245
1246     PROP_SETS(self->window, net_wm_visible_icon_name, data);
1247
1248     self->icon_title = data;
1249 }
1250
1251 void client_update_class(Client *self)
1252 {
1253     char **data;
1254     char *s;
1255
1256     if (self->name) g_free(self->name);
1257     if (self->class) g_free(self->class);
1258     if (self->role) g_free(self->role);
1259
1260     self->name = self->class = self->role = NULL;
1261
1262     if (PROP_GETSS(self->window, wm_class, locale, &data)) {
1263         if (data[0]) {
1264             self->name = g_strdup(data[0]);
1265             if (data[1])
1266                 self->class = g_strdup(data[1]);
1267         }
1268         g_strfreev(data);     
1269     }
1270
1271     if (PROP_GETS(self->window, wm_window_role, locale, &s))
1272         self->role = g_strdup(s);
1273
1274     if (self->name == NULL) self->name = g_strdup("");
1275     if (self->class == NULL) self->class = g_strdup("");
1276     if (self->role == NULL) self->role = g_strdup("");
1277 }
1278
1279 void client_update_strut(Client *self)
1280 {
1281     guint num;
1282     guint32 *data;
1283
1284     if (!PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
1285         STRUT_SET(self->strut, 0, 0, 0, 0);
1286     } else {
1287         if (num == 4)
1288             STRUT_SET(self->strut, data[0], data[2], data[1], data[3]);
1289         else
1290             STRUT_SET(self->strut, 0, 0, 0, 0);
1291         g_free(data);
1292     }
1293
1294     /* updating here is pointless while we're being mapped cuz we're not in
1295        the client list yet */
1296     if (self->frame)
1297         screen_update_struts();
1298 }
1299
1300 void client_update_icons(Client *self)
1301 {
1302     guint num;
1303     guint32 *data;
1304     guint w, h, i;
1305     int j;
1306
1307     for (j = 0; j < self->nicons; ++j)
1308         g_free(self->icons[j].data);
1309     if (self->nicons > 0)
1310         g_free(self->icons);
1311     self->nicons = 0;
1312
1313     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
1314         /* figure out how many valid icons are in here */
1315         i = 0;
1316         while (num - i > 2) {
1317             w = data[i++];
1318             h = data[i++];
1319             i += w * h;
1320             if (i > num || w*h == 0) break;
1321             ++self->nicons;
1322         }
1323
1324         self->icons = g_new(Icon, self->nicons);
1325     
1326         /* store the icons */
1327         i = 0;
1328         for (j = 0; j < self->nicons; ++j) {
1329             guint x, y, t;
1330
1331             w = self->icons[j].width = data[i++];
1332             h = self->icons[j].height = data[i++];
1333
1334             if (w*h == 0) continue;
1335
1336             self->icons[j].data = g_new(pixel32, w * h);
1337             for (x = 0, y = 0, t = 0; t < w * h; ++t, ++x, ++i) {
1338                 if (x >= w) {
1339                     x = 0;
1340                     ++y;
1341                 }
1342                 self->icons[j].data[t] =
1343                     (((data[i] >> 24) & 0xff) << default_alpha_offset) +
1344                     (((data[i] >> 16) & 0xff) << default_red_offset) +
1345                     (((data[i] >> 8) & 0xff) << default_green_offset) +
1346                     (((data[i] >> 0) & 0xff) << default_blue_offset);
1347             }
1348             g_assert(i <= num);
1349         }
1350
1351         g_free(data);
1352     } else if (PROP_GETA32(self->window, kwm_win_icon,
1353                            kwm_win_icon, &data, &num)) {
1354         if (num == 2) {
1355             self->nicons++;
1356             self->icons = g_new(Icon, self->nicons);
1357             xerror_set_ignore(TRUE);
1358             if (!render_pixmap_to_rgba(data[0], data[1],
1359                                        &self->icons[self->nicons-1].width,
1360                                        &self->icons[self->nicons-1].height,
1361                                        &self->icons[self->nicons-1].data)) {
1362                 g_free(&self->icons[self->nicons-1]);
1363                 self->nicons--;
1364             }
1365             xerror_set_ignore(FALSE);
1366         }
1367         g_free(data);
1368     } else {
1369         XWMHints *hints;
1370
1371         if ((hints = XGetWMHints(ob_display, self->window))) {
1372             if (hints->flags & IconPixmapHint) {
1373                 self->nicons++;
1374                 self->icons = g_new(Icon, self->nicons);
1375                 xerror_set_ignore(TRUE);
1376                 if (!render_pixmap_to_rgba(hints->icon_pixmap,
1377                                            (hints->flags & IconMaskHint ?
1378                                             hints->icon_mask : None),
1379                                            &self->icons[self->nicons-1].width,
1380                                            &self->icons[self->nicons-1].height,
1381                                            &self->icons[self->nicons-1].data)){
1382                     g_free(&self->icons[self->nicons-1]);
1383                     self->nicons--;
1384                 }
1385                 xerror_set_ignore(FALSE);
1386             }
1387             XFree(hints);
1388         }
1389     }
1390
1391     if (self->frame)
1392         frame_adjust_icon(self->frame);
1393 }
1394
1395 static void client_change_state(Client *self)
1396 {
1397     guint32 state[2];
1398     guint32 netstate[10];
1399     guint num;
1400
1401     state[0] = self->wmstate;
1402     state[1] = None;
1403     PROP_SETA32(self->window, wm_state, wm_state, state, 2);
1404
1405     num = 0;
1406     if (self->modal)
1407         netstate[num++] = prop_atoms.net_wm_state_modal;
1408     if (self->shaded)
1409         netstate[num++] = prop_atoms.net_wm_state_shaded;
1410     if (self->iconic)
1411         netstate[num++] = prop_atoms.net_wm_state_hidden;
1412     if (self->skip_taskbar)
1413         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1414     if (self->skip_pager)
1415         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1416     if (self->fullscreen)
1417         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1418     if (self->max_vert)
1419         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1420     if (self->max_horz)
1421         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1422     if (self->above)
1423         netstate[num++] = prop_atoms.net_wm_state_above;
1424     if (self->below)
1425         netstate[num++] = prop_atoms.net_wm_state_below;
1426     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
1427
1428     client_calc_layer(self);
1429
1430     if (self->frame)
1431         frame_adjust_state(self->frame);
1432 }
1433
1434 Client *client_search_focus_tree(Client *self)
1435 {
1436     GSList *it;
1437     Client *ret;
1438
1439     for (it = self->transients; it != NULL; it = it->next) {
1440         if (client_focused(it->data)) return it->data;
1441         if ((ret = client_search_focus_tree(it->data))) return ret;
1442     }
1443     return NULL;
1444 }
1445
1446 Client *client_search_focus_tree_full(Client *self)
1447 {
1448     if (self->transient_for) {
1449         if (self->transient_for != TRAN_GROUP) {
1450             return client_search_focus_tree_full(self->transient_for);
1451         } else {
1452             GSList *it;
1453             gboolean recursed = FALSE;
1454         
1455             for (it = self->group->members; it; it = it->next)
1456                 if (!((Client*)it->data)->transient_for) {
1457                     Client *c;
1458                     if ((c = client_search_focus_tree_full(it->data)))
1459                         return c;
1460                     recursed = TRUE;
1461                 }
1462             if (recursed)
1463               return NULL;
1464         }
1465     }
1466
1467     /* this function checks the whole tree, the client_search_focus_tree~
1468        does not, so we need to check this window */
1469     if (client_focused(self))
1470       return self;
1471     return client_search_focus_tree(self);
1472 }
1473
1474 static StackLayer calc_layer(Client *self)
1475 {
1476     StackLayer l;
1477
1478     if (self->fullscreen) l = Layer_Fullscreen;
1479     else if (self->type == Type_Desktop) l = Layer_Desktop;
1480     else if (self->type == Type_Dock) {
1481         if (!self->below) l = Layer_Top;
1482         else l = Layer_Normal;
1483     }
1484     else if (self->above) l = Layer_Above;
1485     else if (self->below) l = Layer_Below;
1486     else l = Layer_Normal;
1487
1488     return l;
1489 }
1490
1491 static void calc_recursive(Client *self, Client *orig, StackLayer l,
1492                            gboolean raised)
1493 {
1494     StackLayer old, own;
1495     GSList *it;
1496
1497     old = self->layer;
1498     own = calc_layer(self);
1499     self->layer = l > own ? l : own;
1500
1501     for (it = self->transients; it; it = it->next)
1502         calc_recursive(it->data, orig, l, raised ? raised : l != old);
1503
1504     if (!raised && l != old)
1505         if (orig->frame) /* only restack if the original window is managed */
1506             stacking_raise(CLIENT_AS_WINDOW(self));
1507 }
1508
1509 void client_calc_layer(Client *self)
1510 {
1511     StackLayer l;
1512     Client *orig;
1513
1514     orig = self;
1515
1516     /* transients take on the layer of their parents */
1517     if (self->transient_for) {
1518         if (self->transient_for != TRAN_GROUP) {
1519             self = self->transient_for;
1520         } else {
1521             GSList *it;
1522
1523             for (it = self->group->members; it; it = it->next)
1524                 if (it->data != self &&
1525                     !((Client*)it->data)->transient_for) {
1526                     self = it->data;
1527                     break;
1528                 }
1529         }
1530     }
1531
1532     l = calc_layer(self);
1533
1534     calc_recursive(self, orig, l, FALSE);
1535 }
1536
1537 gboolean client_should_show(Client *self)
1538 {
1539     if (self->iconic) return FALSE;
1540     else if (!(self->desktop == screen_desktop ||
1541                self->desktop == DESKTOP_ALL)) return FALSE;
1542     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1543     
1544     return TRUE;
1545 }
1546
1547 static void client_showhide(Client *self)
1548 {
1549
1550     if (client_should_show(self))
1551         frame_show(self->frame);
1552     else
1553         frame_hide(self->frame);
1554 }
1555
1556 gboolean client_normal(Client *self) {
1557     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1558               self->type == Type_Splash);
1559 }
1560
1561 static void client_apply_startup_state(Client *self)
1562 {
1563     /* these are in a carefully crafted order.. */
1564
1565     if (self->iconic) {
1566         self->iconic = FALSE;
1567         client_iconify(self, TRUE, FALSE);
1568     }
1569     if (self->fullscreen) {
1570         self->fullscreen = FALSE;
1571         client_fullscreen(self, TRUE, FALSE);
1572     }
1573     if (self->shaded) {
1574         self->shaded = FALSE;
1575         client_shade(self, TRUE);
1576     }
1577     if (self->urgent)
1578         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1579   
1580     if (self->max_vert && self->max_horz) {
1581         self->max_vert = self->max_horz = FALSE;
1582         client_maximize(self, TRUE, 0, FALSE);
1583     } else if (self->max_vert) {
1584         self->max_vert = FALSE;
1585         client_maximize(self, TRUE, 2, FALSE);
1586     } else if (self->max_horz) {
1587         self->max_horz = FALSE;
1588         client_maximize(self, TRUE, 1, FALSE);
1589     }
1590
1591     /* nothing to do for the other states:
1592        skip_taskbar
1593        skip_pager
1594        modal
1595        above
1596        below
1597     */
1598 }
1599
1600 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1601                       gboolean user, gboolean final)
1602 {
1603     gboolean moved = FALSE, resized = FALSE;
1604
1605     /* gets the frame's position */
1606     frame_client_gravity(self->frame, &x, &y);
1607
1608     /* these positions are frame positions, not client positions */
1609
1610     /* set the size and position if fullscreen */
1611     if (self->fullscreen) {
1612 #ifdef VIDMODE
1613         int dot;
1614         XF86VidModeModeLine mode;
1615
1616         if (XF86VidModeGetModeLine(ob_display, ob_screen, &dot, &mode)) {
1617             w = mode.hdisplay;
1618             h = mode.vdisplay;
1619             if (mode.privsize) XFree(mode.private);
1620         } else {
1621 #else
1622             w = screen_physical_size.width;
1623             h = screen_physical_size.height;
1624 #endif
1625 #ifdef VIDMODE
1626         }
1627         if (!XF86VidModeGetViewPort(ob_display, ob_screen, &x, &y)) {
1628             x = y = 0;
1629 #endif
1630         }
1631         user = FALSE; /* ignore that increment etc shit when in fullscreen */
1632     } else {
1633         /* set the size and position if maximized */
1634         if (self->max_horz) {
1635             x = screen_area(self->desktop)->x - self->frame->size.left;
1636             w = screen_area(self->desktop)->width;
1637         }
1638         if (self->max_vert) {
1639             y = screen_area(self->desktop)->y;
1640             h = screen_area(self->desktop)->height -
1641                 self->frame->size.top - self->frame->size.bottom;
1642         }
1643     }
1644
1645     /* gets the client's position */
1646     frame_frame_gravity(self->frame, &x, &y);
1647
1648     /* these override the above states! if you cant move you can't move! */
1649     if (user) {
1650         if (!(self->functions & Func_Move)) {
1651             x = self->area.x;
1652             y = self->area.y;
1653         }
1654         if (!(self->functions & Func_Resize)) {
1655             w = self->area.width;
1656             h = self->area.height;
1657         }
1658     }
1659
1660     if (!(w == self->area.width && h == self->area.height)) {
1661         int basew, baseh, minw, minh;
1662
1663         /* base size is substituted with min size if not specified */
1664         if (self->base_size.width || self->base_size.height) {
1665             basew = self->base_size.width;
1666             baseh = self->base_size.height;
1667         } else {
1668             basew = self->min_size.width;
1669             baseh = self->min_size.height;
1670         }
1671         /* min size is substituted with base size if not specified */
1672         if (self->min_size.width || self->min_size.height) {
1673             minw = self->min_size.width;
1674             minh = self->min_size.height;
1675         } else {
1676             minw = self->base_size.width;
1677             minh = self->base_size.height;
1678         }
1679
1680         if (user) {
1681             /* for interactive resizing. have to move half an increment in each
1682                direction. */
1683
1684             /* how far we are towards the next size inc */
1685             int mw = (w - basew) % self->size_inc.width; 
1686             int mh = (h - baseh) % self->size_inc.height;
1687             /* amount to add */
1688             int aw = self->size_inc.width / 2;
1689             int ah = self->size_inc.height / 2;
1690             /* don't let us move into a new size increment */
1691             if (mw + aw >= self->size_inc.width)
1692                 aw = self->size_inc.width - mw - 1;
1693             if (mh + ah >= self->size_inc.height)
1694                 ah = self->size_inc.height - mh - 1;
1695             w += aw;
1696             h += ah;
1697     
1698             /* if this is a user-requested resize, then check against min/max
1699                sizes */
1700
1701             /* smaller than min size or bigger than max size? */
1702             if (w > self->max_size.width) w = self->max_size.width;
1703             if (w < minw) w = minw;
1704             if (h > self->max_size.height) h = self->max_size.height;
1705             if (h < minh) h = minh;
1706         }
1707
1708         w -= basew;
1709         h -= baseh;
1710
1711         /* keep to the increments */
1712         w /= self->size_inc.width;
1713         h /= self->size_inc.height;
1714
1715         /* you cannot resize to nothing */
1716         if (w < 1) w = 1;
1717         if (h < 1) h = 1;
1718   
1719         /* store the logical size */
1720         SIZE_SET(self->logical_size, w, h);
1721
1722         w *= self->size_inc.width;
1723         h *= self->size_inc.height;
1724
1725         w += basew;
1726         h += baseh;
1727
1728         if (user) {
1729             /* adjust the height to match the width for the aspect ratios.
1730              for this, min size is not substituted for base size ever. */
1731             w -= self->base_size.width;
1732             h -= self->base_size.height;
1733
1734             if (self->min_ratio)
1735                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1736             if (self->max_ratio)
1737                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1738
1739             w += self->base_size.width;
1740             h += self->base_size.height;
1741         }
1742     }
1743
1744     switch (anchor) {
1745     case Corner_TopLeft:
1746         break;
1747     case Corner_TopRight:
1748         x -= w - self->area.width;
1749         break;
1750     case Corner_BottomLeft:
1751         y -= h - self->area.height;
1752         break;
1753     case Corner_BottomRight:
1754         x -= w - self->area.width;
1755         y -= h - self->area.height;
1756         break;
1757     }
1758
1759     moved = x != self->area.x || y != self->area.y;
1760     resized = w != self->area.width || h != self->area.height;
1761
1762     RECT_SET(self->area, x, y, w, h);
1763
1764     /* for app-requested resizes, always resize if 'resized' is true.
1765        for user-requested ones, only resize if final is true, or when
1766        resizing in opaque mode */
1767     if ((!user && resized) ||
1768         (user && (final || (resized && config_opaque_resize))))
1769         XResizeWindow(ob_display, self->window, w, h);
1770
1771     /* move/resize the frame to match the request */
1772     if (self->frame) {
1773         if (moved || resized)
1774             frame_adjust_area(self->frame, moved, resized);
1775
1776         /* If you send this and the client hasn't changed you end up with buggy
1777            clients (emacs) freaking out, cuz they send back a configure every
1778            time they receive this event, which resends them this event... etc.
1779         */
1780         if ((moved || resized) && (!user || final)) {
1781             XEvent event;
1782             event.type = ConfigureNotify;
1783             event.xconfigure.display = ob_display;
1784             event.xconfigure.event = self->window;
1785             event.xconfigure.window = self->window;
1786     
1787             /* root window real coords */
1788             event.xconfigure.x = self->frame->area.x + self->frame->size.left;
1789             event.xconfigure.y = self->frame->area.y + self->frame->size.top;
1790     
1791             event.xconfigure.width = w;
1792             event.xconfigure.height = h;
1793             event.xconfigure.border_width = 0;
1794             event.xconfigure.above = self->frame->plate;
1795             event.xconfigure.override_redirect = FALSE;
1796             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1797                        FALSE, StructureNotifyMask, &event);
1798         }
1799     }
1800 }
1801
1802 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1803 {
1804     int x, y, w, h;
1805
1806     if (!(self->functions & Func_Fullscreen) || /* can't */
1807         self->fullscreen == fs) return;         /* already done */
1808
1809     self->fullscreen = fs;
1810     client_change_state(self); /* change the state hints on the client,
1811                                   and adjust out layer/stacking */
1812
1813     if (fs) {
1814         if (savearea) {
1815             guint32 dimensions[4];
1816             dimensions[0] = self->area.x;
1817             dimensions[1] = self->area.y;
1818             dimensions[2] = self->area.width;
1819             dimensions[3] = self->area.height;
1820   
1821             PROP_SETA32(self->window, openbox_premax, cardinal,
1822                         dimensions, 4);
1823         }
1824
1825         /* these are not actually used cuz client_configure will set them
1826            as appropriate when the window is fullscreened */
1827         x = y = w = h = 0;
1828     } else {
1829         guint num;
1830         gint32 *dimensions;
1831
1832         /* pick some fallbacks... */
1833         x = screen_area(self->desktop)->x +
1834             screen_area(self->desktop)->width / 4;
1835         y = screen_area(self->desktop)->y +
1836             screen_area(self->desktop)->height / 4;
1837         w = screen_area(self->desktop)->width / 2;
1838         h = screen_area(self->desktop)->height / 2;
1839
1840         if (PROP_GETA32(self->window, openbox_premax, cardinal,
1841                         (guint32**)&dimensions, &num)) {
1842             if (num == 4) {
1843                 x = dimensions[0];
1844                 y = dimensions[1];
1845                 w = dimensions[2];
1846                 h = dimensions[3];
1847             }
1848             g_free(dimensions);
1849         }
1850     }
1851
1852     client_setup_decor_and_functions(self);
1853
1854     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1855
1856     /* try focus us when we go into fullscreen mode */
1857     client_focus(self);
1858 }
1859
1860 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1861 {
1862     GSList *it;
1863
1864     /* move up the transient chain as far as possible first */
1865     if (self->transient_for) {
1866         if (self->transient_for != TRAN_GROUP) {
1867             if (self->transient_for->iconic != iconic) {
1868                 client_iconify(self->transient_for, iconic, curdesk);
1869                 return;
1870             }
1871         } else {
1872             GSList *it;
1873
1874             for (it = self->group->members; it; it = it->next) {
1875                 Client *c = it->data;
1876                 if (c != self && c->iconic != iconic &&
1877                     !c->transient_for) {
1878                     client_iconify(it->data, iconic, curdesk);
1879                     break;
1880                 }
1881             }
1882             if (it != NULL) return;
1883         }
1884     }
1885
1886     if (self->iconic == iconic) return; /* nothing to do */
1887
1888     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1889               self->window);
1890
1891     self->iconic = iconic;
1892
1893     if (iconic) {
1894         self->wmstate = IconicState;
1895         self->ignore_unmaps++;
1896         /* we unmap the client itself so that we can get MapRequest events,
1897            and because the ICCCM tells us to! */
1898         XUnmapWindow(ob_display, self->window);
1899
1900         /* update the focus lists.. iconic windows go to the bottom of the
1901          list, put the new iconic window at the 'top of the bottom'. */
1902         focus_order_to_top(self);
1903     } else {
1904         if (curdesk)
1905             client_set_desktop(self, screen_desktop, FALSE);
1906         self->wmstate = self->shaded ? IconicState : NormalState;
1907         XMapWindow(ob_display, self->window);
1908
1909         /* this puts it after the current focused window */
1910         focus_order_remove(self);
1911         focus_order_add_new(self);
1912
1913         /* this is here cuz with the VIDMODE extension, the viewport can change
1914            while a fullscreen window is iconic, and when it uniconifies, it
1915            would be nice if it did so to the new position of the viewport */
1916         client_reconfigure(self);
1917     }
1918     client_change_state(self);
1919     client_showhide(self);
1920     screen_update_struts();
1921
1922     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1923                     self, 0, 0);
1924
1925     /* iconify all transients */
1926     for (it = self->transients; it != NULL; it = it->next)
1927         if (it->data != self) client_iconify(it->data, iconic, curdesk);
1928 }
1929
1930 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1931 {
1932     int x, y, w, h;
1933      
1934     g_assert(dir == 0 || dir == 1 || dir == 2);
1935     if (!(self->functions & Func_Maximize)) return; /* can't */
1936
1937     /* check if already done */
1938     if (max) {
1939         if (dir == 0 && self->max_horz && self->max_vert) return;
1940         if (dir == 1 && self->max_horz) return;
1941         if (dir == 2 && self->max_vert) return;
1942     } else {
1943         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1944         if (dir == 1 && !self->max_horz) return;
1945         if (dir == 2 && !self->max_vert) return;
1946     }
1947
1948     /* work with the frame's coords */
1949     x = self->frame->area.x;
1950     y = self->frame->area.y;
1951     w = self->area.width;
1952     h = self->area.height;
1953
1954     if (max) {
1955         if (savearea) {
1956             gint32 dimensions[4];
1957             gint32 *readdim;
1958             guint num;
1959
1960             dimensions[0] = x;
1961             dimensions[1] = y;
1962             dimensions[2] = w;
1963             dimensions[3] = h;
1964
1965             /* get the property off the window and use it for the dimensions
1966                we are already maxed on */
1967             if (PROP_GETA32(self->window, openbox_premax, cardinal,
1968                             (guint32**)&readdim, &num)) {
1969                 if (num == 4) {
1970                     if (self->max_horz) {
1971                         dimensions[0] = readdim[0];
1972                         dimensions[2] = readdim[2];
1973                     }
1974                     if (self->max_vert) {
1975                         dimensions[1] = readdim[1];
1976                         dimensions[3] = readdim[3];
1977                     }
1978                 }
1979                 g_free(readdim);
1980             }
1981
1982             PROP_SETA32(self->window, openbox_premax, cardinal,
1983                         (guint32*)dimensions, 4);
1984         }
1985     } else {
1986         guint num;
1987         gint32 *dimensions;
1988
1989         /* pick some fallbacks... */
1990         if (dir == 0 || dir == 1) { /* horz */
1991             x = screen_area(self->desktop)->x +
1992                 screen_area(self->desktop)->width / 4;
1993             w = screen_area(self->desktop)->width / 2;
1994         }
1995         if (dir == 0 || dir == 2) { /* vert */
1996             y = screen_area(self->desktop)->y +
1997                 screen_area(self->desktop)->height / 4;
1998             h = screen_area(self->desktop)->height / 2;
1999         }
2000
2001         if (PROP_GETA32(self->window, openbox_premax, cardinal,
2002                         (guint32**)&dimensions, &num)) {
2003             if (num == 4) {
2004                 if (dir == 0 || dir == 1) { /* horz */
2005                     x = dimensions[0];
2006                     w = dimensions[2];
2007                 }
2008                 if (dir == 0 || dir == 2) { /* vert */
2009                     y = dimensions[1];
2010                     h = dimensions[3];
2011                 }
2012             }
2013             g_free(dimensions);
2014         }
2015     }
2016
2017     if (dir == 0 || dir == 1) /* horz */
2018         self->max_horz = max;
2019     if (dir == 0 || dir == 2) /* vert */
2020         self->max_vert = max;
2021
2022     if (!self->max_horz && !self->max_vert)
2023         PROP_ERASE(self->window, openbox_premax);
2024
2025     client_change_state(self); /* change the state hints on the client */
2026
2027     /* figure out where the client should be going */
2028     frame_frame_gravity(self->frame, &x, &y);
2029     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
2030 }
2031
2032 void client_shade(Client *self, gboolean shade)
2033 {
2034     if ((!(self->functions & Func_Shade) && shade) || /* can't shade */
2035         self->shaded == shade) return;     /* already done */
2036
2037     /* when we're iconic, don't change the wmstate */
2038     if (!self->iconic)
2039         self->wmstate = shade ? IconicState : NormalState;
2040     self->shaded = shade;
2041     client_change_state(self);
2042     /* resize the frame to just the titlebar */
2043     frame_adjust_area(self->frame, FALSE, FALSE);
2044 }
2045
2046 void client_close(Client *self)
2047 {
2048     XEvent ce;
2049
2050     if (!(self->functions & Func_Close)) return;
2051
2052     /*
2053       XXX: itd be cool to do timeouts and shit here for killing the client's
2054       process off
2055       like... if the window is around after 5 seconds, then the close button
2056       turns a nice red, and if this function is called again, the client is
2057       explicitly killed.
2058     */
2059
2060     ce.xclient.type = ClientMessage;
2061     ce.xclient.message_type =  prop_atoms.wm_protocols;
2062     ce.xclient.display = ob_display;
2063     ce.xclient.window = self->window;
2064     ce.xclient.format = 32;
2065     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
2066     ce.xclient.data.l[1] = event_lasttime;
2067     ce.xclient.data.l[2] = 0l;
2068     ce.xclient.data.l[3] = 0l;
2069     ce.xclient.data.l[4] = 0l;
2070     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2071 }
2072
2073 void client_kill(Client *self)
2074 {
2075     XKillClient(ob_display, self->window);
2076 }
2077
2078 void client_set_desktop(Client *self, guint target, gboolean donthide)
2079 {
2080     guint old;
2081
2082     if (target == self->desktop) return;
2083   
2084     g_message("Setting desktop %u", target+1);
2085
2086     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
2087
2088     /* remove from the old desktop(s) */
2089     focus_order_remove(self);
2090
2091     old = self->desktop;
2092     self->desktop = target;
2093     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
2094     /* the frame can display the current desktop state */
2095     frame_adjust_state(self->frame);
2096     /* 'move' the window to the new desktop */
2097     if (!donthide)
2098         client_showhide(self);
2099     /* raise if it was not already on the desktop */
2100     if (old != DESKTOP_ALL)
2101         stacking_raise(CLIENT_AS_WINDOW(self));
2102     screen_update_struts();
2103
2104     /* add to the new desktop(s) */
2105     if (config_focus_new)
2106         focus_order_to_top(self);
2107     else
2108         focus_order_to_bottom(self);
2109
2110     dispatch_client(Event_Client_Desktop, self, target, old);
2111 }
2112
2113 Client *client_search_modal_child(Client *self)
2114 {
2115     GSList *it;
2116     Client *ret;
2117   
2118     for (it = self->transients; it != NULL; it = it->next) {
2119         Client *c = it->data;
2120         if ((ret = client_search_modal_child(c))) return ret;
2121         if (c->modal) return c;
2122     }
2123     return NULL;
2124 }
2125
2126 gboolean client_validate(Client *self)
2127 {
2128     XEvent e; 
2129
2130     XSync(ob_display, FALSE); /* get all events on the server */
2131
2132     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
2133         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
2134         XPutBackEvent(ob_display, &e);
2135         return FALSE;
2136     }
2137
2138     return TRUE;
2139 }
2140
2141 void client_set_wm_state(Client *self, long state)
2142 {
2143     if (state == self->wmstate) return; /* no change */
2144   
2145     switch (state) {
2146     case IconicState:
2147         client_iconify(self, TRUE, TRUE);
2148         break;
2149     case NormalState:
2150         client_iconify(self, FALSE, TRUE);
2151         break;
2152     }
2153 }
2154
2155 void client_set_state(Client *self, Atom action, long data1, long data2)
2156 {
2157     gboolean shaded = self->shaded;
2158     gboolean fullscreen = self->fullscreen;
2159     gboolean max_horz = self->max_horz;
2160     gboolean max_vert = self->max_vert;
2161     int i;
2162
2163     if (!(action == prop_atoms.net_wm_state_add ||
2164           action == prop_atoms.net_wm_state_remove ||
2165           action == prop_atoms.net_wm_state_toggle))
2166         /* an invalid action was passed to the client message, ignore it */
2167         return; 
2168
2169     for (i = 0; i < 2; ++i) {
2170         Atom state = i == 0 ? data1 : data2;
2171     
2172         if (!state) continue;
2173
2174         /* if toggling, then pick whether we're adding or removing */
2175         if (action == prop_atoms.net_wm_state_toggle) {
2176             if (state == prop_atoms.net_wm_state_modal)
2177                 action = self->modal ? prop_atoms.net_wm_state_remove :
2178                     prop_atoms.net_wm_state_add;
2179             else if (state == prop_atoms.net_wm_state_maximized_vert)
2180                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
2181                     prop_atoms.net_wm_state_add;
2182             else if (state == prop_atoms.net_wm_state_maximized_horz)
2183                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
2184                     prop_atoms.net_wm_state_add;
2185             else if (state == prop_atoms.net_wm_state_shaded)
2186                 action = self->shaded ? prop_atoms.net_wm_state_remove :
2187                     prop_atoms.net_wm_state_add;
2188             else if (state == prop_atoms.net_wm_state_skip_taskbar)
2189                 action = self->skip_taskbar ?
2190                     prop_atoms.net_wm_state_remove :
2191                     prop_atoms.net_wm_state_add;
2192             else if (state == prop_atoms.net_wm_state_skip_pager)
2193                 action = self->skip_pager ?
2194                     prop_atoms.net_wm_state_remove :
2195                     prop_atoms.net_wm_state_add;
2196             else if (state == prop_atoms.net_wm_state_fullscreen)
2197                 action = self->fullscreen ?
2198                     prop_atoms.net_wm_state_remove :
2199                     prop_atoms.net_wm_state_add;
2200             else if (state == prop_atoms.net_wm_state_above)
2201                 action = self->above ? prop_atoms.net_wm_state_remove :
2202                     prop_atoms.net_wm_state_add;
2203             else if (state == prop_atoms.net_wm_state_below)
2204                 action = self->below ? prop_atoms.net_wm_state_remove :
2205                     prop_atoms.net_wm_state_add;
2206         }
2207     
2208         if (action == prop_atoms.net_wm_state_add) {
2209             if (state == prop_atoms.net_wm_state_modal) {
2210                 /* XXX raise here or something? */
2211                 self->modal = TRUE;
2212             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2213                 max_vert = TRUE;
2214             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2215                 max_horz = TRUE;
2216             } else if (state == prop_atoms.net_wm_state_shaded) {
2217                 shaded = TRUE;
2218             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2219                 self->skip_taskbar = TRUE;
2220             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2221                 self->skip_pager = TRUE;
2222             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2223                 fullscreen = TRUE;
2224             } else if (state == prop_atoms.net_wm_state_above) {
2225                 self->above = TRUE;
2226             } else if (state == prop_atoms.net_wm_state_below) {
2227                 self->below = TRUE;
2228             }
2229
2230         } else { /* action == prop_atoms.net_wm_state_remove */
2231             if (state == prop_atoms.net_wm_state_modal) {
2232                 self->modal = FALSE;
2233             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
2234                 max_vert = FALSE;
2235             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
2236                 max_horz = FALSE;
2237             } else if (state == prop_atoms.net_wm_state_shaded) {
2238                 shaded = FALSE;
2239             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
2240                 self->skip_taskbar = FALSE;
2241             } else if (state == prop_atoms.net_wm_state_skip_pager) {
2242                 self->skip_pager = FALSE;
2243             } else if (state == prop_atoms.net_wm_state_fullscreen) {
2244                 fullscreen = FALSE;
2245             } else if (state == prop_atoms.net_wm_state_above) {
2246                 self->above = FALSE;
2247             } else if (state == prop_atoms.net_wm_state_below) {
2248                 self->below = FALSE;
2249             }
2250         }
2251     }
2252     if (max_horz != self->max_horz || max_vert != self->max_vert) {
2253         if (max_horz != self->max_horz && max_vert != self->max_vert) {
2254             /* toggling both */
2255             if (max_horz == max_vert) { /* both going the same way */
2256                 client_maximize(self, max_horz, 0, TRUE);
2257             } else {
2258                 client_maximize(self, max_horz, 1, TRUE);
2259                 client_maximize(self, max_vert, 2, TRUE);
2260             }
2261         } else {
2262             /* toggling one */
2263             if (max_horz != self->max_horz)
2264                 client_maximize(self, max_horz, 1, TRUE);
2265             else
2266                 client_maximize(self, max_vert, 2, TRUE);
2267         }
2268     }
2269     /* change fullscreen state before shading, as it will affect if the window
2270        can shade or not */
2271     if (fullscreen != self->fullscreen)
2272         client_fullscreen(self, fullscreen, TRUE);
2273     if (shaded != self->shaded)
2274         client_shade(self, shaded);
2275     client_calc_layer(self);
2276     client_change_state(self); /* change the hint to reflect these changes */
2277 }
2278
2279 Client *client_focus_target(Client *self)
2280 {
2281     Client *child;
2282      
2283     /* if we have a modal child, then focus it, not us */
2284     child = client_search_modal_child(self);
2285     if (child) return child;
2286     return self;
2287 }
2288
2289 gboolean client_can_focus(Client *self)
2290 {
2291     XEvent ev;
2292
2293     /* choose the correct target */
2294     self = client_focus_target(self);
2295
2296     if (!self->frame->visible)
2297         return FALSE;
2298
2299     if (!((self->can_focus || self->focus_notify) &&
2300           (self->desktop == screen_desktop ||
2301            self->desktop == DESKTOP_ALL) &&
2302           !self->iconic))
2303         return FALSE;
2304
2305     /* do a check to see if the window has already been unmapped or destroyed
2306        do this intelligently while watching out for unmaps we've generated
2307        (ignore_unmaps > 0) */
2308     if (XCheckTypedWindowEvent(ob_display, self->window,
2309                                DestroyNotify, &ev)) {
2310         XPutBackEvent(ob_display, &ev);
2311         return FALSE;
2312     }
2313     while (XCheckTypedWindowEvent(ob_display, self->window,
2314                                   UnmapNotify, &ev)) {
2315         if (self->ignore_unmaps) {
2316             self->ignore_unmaps--;
2317         } else {
2318             XPutBackEvent(ob_display, &ev);
2319             return FALSE;
2320         }
2321     }
2322
2323     return TRUE;
2324 }
2325
2326 gboolean client_focus(Client *self)
2327 {
2328     /* choose the correct target */
2329     self = client_focus_target(self);
2330
2331     if (!client_can_focus(self)) {
2332         if (!self->frame->visible) {
2333             /* update the focus lists */
2334             focus_order_to_top(self);
2335         }
2336         return FALSE;
2337     }
2338
2339     if (self->can_focus)
2340         /* RevertToPointerRoot causes much more headache than RevertToNone, so
2341            I choose to use it always, hopefully to find errors quicker, if any
2342            are left. (I hate X. I hate focus events.) */
2343         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
2344                        event_lasttime);
2345
2346     if (self->focus_notify) {
2347         XEvent ce;
2348         ce.xclient.type = ClientMessage;
2349         ce.xclient.message_type = prop_atoms.wm_protocols;
2350         ce.xclient.display = ob_display;
2351         ce.xclient.window = self->window;
2352         ce.xclient.format = 32;
2353         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
2354         ce.xclient.data.l[1] = event_lasttime;
2355         ce.xclient.data.l[2] = 0l;
2356         ce.xclient.data.l[3] = 0l;
2357         ce.xclient.data.l[4] = 0l;
2358         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
2359     }
2360
2361 #ifdef DEBUG_FOCUS
2362     g_message("%sively focusing %lx at %d", (self->can_focus ? "act" : "pass"),
2363               self->window, (int)
2364               event_lasttime);
2365 #endif
2366
2367     /* Cause the FocusIn to come back to us. Important for desktop switches,
2368        since otherwise we'll have no FocusIn on the queue and send it off to
2369        the focus_backup. */
2370     XSync(ob_display, FALSE);
2371     return TRUE;
2372 }
2373
2374 void client_unfocus(Client *self)
2375 {
2376     g_assert(focus_client == self);
2377 #ifdef DEBUG_FOCUS
2378     g_message("client_unfocus for %lx", self->window);
2379 #endif
2380     focus_fallback(Fallback_Unfocusing);
2381 }
2382
2383 void client_activate(Client *self)
2384 {
2385     if (client_normal(self) && screen_showing_desktop)
2386         screen_show_desktop(FALSE);
2387     if (self->iconic)
2388         client_iconify(self, FALSE, TRUE);
2389     else if (!self->frame->visible)
2390         /* if its not visible for other reasons, then don't mess
2391            with it */
2392         return;
2393     if (self->shaded)
2394         client_shade(self, FALSE);
2395     client_focus(self);
2396     stacking_raise(CLIENT_AS_WINDOW(self));
2397 }
2398
2399 gboolean client_focused(Client *self)
2400 {
2401     return self == focus_client;
2402 }
2403
2404 Icon *client_icon(Client *self, int w, int h)
2405 {
2406     int i;
2407     /* si is the smallest image >= req */
2408     /* li is the largest image < req */
2409     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
2410
2411     if (!self->nicons) return NULL;
2412
2413     for (i = 0; i < self->nicons; ++i) {
2414         size = self->icons[i].width * self->icons[i].height;
2415         if (size < smallest && size >= (unsigned)(w * h)) {
2416             smallest = size;
2417             si = i;
2418         }
2419         if (size > largest && size <= (unsigned)(w * h)) {
2420             largest = size;
2421             li = i;
2422         }
2423     }
2424     if (largest == 0) /* didnt find one smaller than the requested size */
2425         return &self->icons[si];
2426     return &self->icons[li];
2427 }
2428
2429 /* this be mostly ripped from fvwm */
2430 Client *client_find_directional(Client *c, Direction dir) 
2431 {
2432     int my_cx, my_cy, his_cx, his_cy;
2433     int offset = 0;
2434     int distance = 0;
2435     int score, best_score;
2436     Client *best_client, *cur;
2437     GList *it;
2438
2439     if(!client_list)
2440         return NULL;
2441
2442     /* first, find the centre coords of the currently focused window */
2443     my_cx = c->frame->area.x + c->frame->area.width / 2;
2444     my_cy = c->frame->area.y + c->frame->area.height / 2;
2445
2446     best_score = -1;
2447     best_client = NULL;
2448
2449     for(it = g_list_first(client_list); it; it = it->next) {
2450         cur = it->data;
2451
2452         /* the currently selected window isn't interesting */
2453         if(cur == c)
2454             continue;
2455         if (!client_normal(cur))
2456             continue;
2457         if(c->desktop != cur->desktop && cur->desktop != DESKTOP_ALL)
2458             continue;
2459         if(cur->iconic)
2460             continue;
2461         if(client_focus_target(cur) == cur &&
2462            !(cur->can_focus || cur->focus_notify))
2463             continue;
2464
2465         /* find the centre coords of this window, from the
2466          * currently focused window's point of view */
2467         his_cx = (cur->frame->area.x - my_cx)
2468             + cur->frame->area.width / 2;
2469         his_cy = (cur->frame->area.y - my_cy)
2470             + cur->frame->area.height / 2;
2471
2472         if(dir > 3) { 
2473             int tx;
2474             /* Rotate the diagonals 45 degrees counterclockwise.
2475              * To do this, multiply the matrix /+h +h\ with the
2476              * vector (x y).                   \-h +h/
2477              * h = sqrt(0.5). We can set h := 1 since absolute
2478              * distance doesn't matter here. */
2479             tx = his_cx + his_cy;
2480             his_cy = -his_cx + his_cy;
2481             his_cx = tx;
2482         }
2483
2484         switch(dir) {
2485         case Direction_North :
2486         case Direction_South :
2487         case Direction_NorthEast :
2488         case Direction_SouthWest :
2489             offset = (his_cx < 0) ? -his_cx : his_cx;
2490             distance = (dir == Direction_North || dir == Direction_NorthEast) ?
2491                 -his_cy : his_cy;
2492             break;
2493         case Direction_East :
2494         case Direction_West :
2495         case Direction_SouthEast :
2496         case Direction_NorthWest :
2497             offset = (his_cy < 0) ? -his_cy : his_cy;
2498             distance = (dir == Direction_West || dir == Direction_NorthWest) ?
2499                 -his_cx : his_cx;
2500             break;
2501         }
2502
2503         /* the target must be in the requested direction */
2504         if(distance <= 0)
2505             continue;
2506
2507         /* Calculate score for this window.  The smaller the better. */
2508         score = distance + offset;
2509
2510         /* windows more than 45 degrees off the direction are
2511          * heavily penalized and will only be chosen if nothing
2512          * else within a million pixels */
2513         if(offset > distance)
2514             score += 1000000;
2515
2516         if(best_score == -1 || score < best_score)
2517             best_client = cur,
2518                 best_score = score;
2519     }
2520
2521     return best_client;
2522 }
2523
2524 void client_set_layer(Client *self, int layer)
2525 {
2526     if (layer < 0) {
2527         self->below = TRUE;
2528         self->above = FALSE;
2529     } else if (layer == 0) {
2530         self->below = self->above = FALSE;
2531     } else {
2532         self->below = FALSE;
2533         self->above = TRUE;
2534     }
2535     client_calc_layer(self);
2536     client_change_state(self); /* reflect this in the state hints */
2537 }