mor fabulous focus fixings.
[dana/openbox.git] / openbox / client.c
1 #include "client.h"
2 #include "screen.h"
3 #include "prop.h"
4 #include "extensions.h"
5 #include "config.h"
6 #include "frame.h"
7 #include "engine.h"
8 #include "event.h"
9 #include "grab.h"
10 #include "focus.h"
11 #include "stacking.h"
12 #include "dispatch.h"
13
14 #include <glib.h>
15 #include <X11/Xutil.h>
16
17 /*! The event mask to grab on client windows */
18 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
19                           StructureNotifyMask)
20
21 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
22                                 ButtonMotionMask)
23
24 GSList     *client_list      = NULL;
25 GHashTable *client_map       = NULL;
26
27 static Window *client_startup_stack_order = NULL;
28 static gulong  client_startup_stack_size = 0;
29
30 static void client_get_all(Client *self);
31 static void client_toggle_border(Client *self, gboolean show);
32 static void client_get_area(Client *self);
33 static void client_get_desktop(Client *self);
34 static void client_get_state(Client *self);
35 static void client_get_shaped(Client *self);
36 static void client_get_mwm_hints(Client *self);
37 static void client_get_gravity(Client *self);
38 static void client_showhide(Client *self);
39 static void client_change_allowed_actions(Client *self);
40 static void client_change_state(Client *self);
41 static Client *search_focus_tree(Client *node, Client *skip);
42 static void client_apply_startup_state(Client *self);
43 static Client *search_modal_tree(Client *node, Client *skip);
44
45 static guint map_hash(Window *w) { return *w; }
46 static gboolean map_key_comp(Window *w1, Window *w2) { return *w1 == *w2; }
47
48 void client_startup()
49 {
50     client_map = g_hash_table_new((GHashFunc)map_hash,
51                                   (GEqualFunc)map_key_comp);
52
53     /* save the stacking order on startup! */
54     PROP_GET32U(ob_root, net_client_list_stacking, window,
55                 client_startup_stack_order, client_startup_stack_size);
56
57     client_set_list();
58 }
59
60 void client_shutdown()
61 {
62     g_hash_table_destroy(client_map);
63 }
64
65 void client_set_list()
66 {
67     Window *windows, *win_it;
68     GSList *it;
69     guint size = g_slist_length(client_list);
70
71     /* create an array of the window ids */
72     if (size > 0) {
73         windows = g_new(Window, size);
74         win_it = windows;
75         for (it = client_list; it != NULL; it = it->next, ++win_it)
76             *win_it = ((Client*)it->data)->window;
77     } else
78         windows = NULL;
79
80     PROP_SET32A(ob_root, net_client_list, window, windows, size);
81
82     if (windows)
83         g_free(windows);
84
85     stacking_set_list();
86 }
87
88 void client_manage_all()
89 {
90     ConfigValue focus_new;
91     unsigned int i, j, nchild;
92     Window w, *children;
93     XWMHints *wmhints;
94     XWindowAttributes attrib;
95
96     XQueryTree(ob_display, ob_root, &w, &w, &children, &nchild);
97
98     /* remove all icon windows from the list */
99     for (i = 0; i < nchild; i++) {
100         if (children[i] == None) continue;
101         wmhints = XGetWMHints(ob_display, children[i]);
102         if (wmhints) {
103             if ((wmhints->flags & IconWindowHint) &&
104                 (wmhints->icon_window != children[i]))
105                 for (j = 0; j < nchild; j++)
106                     if (children[j] == wmhints->icon_window) {
107                         children[j] = None;
108                         break;
109                     }
110             XFree(wmhints);
111         }
112     }
113
114     for (i = 0; i < nchild; ++i) {
115         if (children[i] == None)
116             continue;
117         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
118             if (attrib.override_redirect) continue;
119
120             if (attrib.map_state != IsUnmapped)
121                 client_manage(children[i]);
122         }
123     }
124     XFree(children);
125
126     /* stack them as they were on startup!
127        why with stacking_lower? Why, because then windows who aren't in the
128        stacking list are on the top where you can see them instead of buried
129        at the bottom! */
130     for (i = client_startup_stack_size; i > 0; --i) {
131         Client *c;
132
133         w = client_startup_stack_order[i-1];
134         c = g_hash_table_lookup(client_map, &w);
135         g_message("0x%lx %d %d", c->window, c->iconic, c->shaded);
136         if (c) stacking_lower(c);
137     }
138     g_free(client_startup_stack_order);
139     client_startup_stack_order = NULL;
140     client_startup_stack_size = 0;
141
142     if (!config_get("focusNew", Config_Bool, &focus_new))
143         g_assert_not_reached();
144     if (focus_new.bool)
145         focus_fallback(FALSE);
146 }
147
148 void client_manage(Window window)
149 {
150     Client *client;
151     XEvent e;
152     XWindowAttributes attrib;
153     XSetWindowAttributes attrib_set;
154 /*    XWMHints *wmhint; */
155     guint i;
156     ConfigValue focus_new;
157
158     grab_server(TRUE);
159
160     /* check if it has already been unmapped by the time we started mapping
161        the grab does a sync so we don't have to here */
162     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
163         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
164         XPutBackEvent(ob_display, &e);
165
166         grab_server(FALSE);
167         return; /* don't manage it */
168     }
169
170     /* make sure it isn't an override-redirect window */
171     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
172         attrib.override_redirect) {
173         grab_server(FALSE);
174         return; /* don't manage it */
175     }
176   
177 /*    /\* is the window a docking app *\/
178     if ((wmhint = XGetWMHints(ob_display, window))) {
179         if ((wmhint->flags & StateHint) &&
180             wmhint->initial_state == WithdrawnState) {
181             /\* XXX: make dock apps work! *\/
182             grab_server(FALSE);
183             XFree(wmhint);
184             return;
185         }
186         XFree(wmhint);
187     }
188 */
189
190     /* choose the events we want to receive on the CLIENT window */
191     attrib_set.event_mask = CLIENT_EVENTMASK;
192     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
193     XChangeWindowAttributes(ob_display, window,
194                             CWEventMask|CWDontPropagate, &attrib_set);
195
196
197     /* create the Client struct, and populate it from the hints on the
198        window */
199     client = g_new(Client, 1);
200     client->window = window;
201     client_get_all(client);
202
203     /* remove the client's border (and adjust re gravity) */
204     client_toggle_border(client, FALSE);
205      
206     /* specify that if we exit, the window should not be destroyed and should
207        be reparented back to root automatically */
208     XChangeSaveSet(ob_display, window, SetModeInsert);
209
210     /* create the decoration frame for the client window */
211     client->frame = engine_frame_new();
212
213     engine_frame_grab_client(client->frame, client);
214
215     client_apply_startup_state(client);
216
217     grab_server(FALSE);
218      
219     client_list = g_slist_append(client_list, client);
220     stacking_list = g_list_append(stacking_list, client);
221     g_assert(!g_hash_table_lookup(client_map, &client->window));
222     g_hash_table_insert(client_map, &client->window, client);
223
224     /* update the focus lists */
225     if (client->desktop == DESKTOP_ALL) {
226         for (i = 0; i < screen_num_desktops; ++i)
227             focus_order[i] = g_list_append(focus_order[i], client);
228     } else {
229         i = client->desktop;
230         focus_order[i] = g_list_append(focus_order[i], client);
231     }
232
233     stacking_raise(client);
234
235     screen_update_struts();
236
237     dispatch_client(Event_Client_New, client, 0, 0);
238
239     client_showhide(client);
240
241     dispatch_client(Event_Client_Mapped, client, 0, 0);
242
243     if (!config_get("focusNew", Config_Bool, &focus_new))
244         g_assert_not_reached();
245     if (ob_state != State_Starting && focus_new.bool)
246         client_focus(client);
247
248     /* update the list hints */
249     client_set_list();
250
251 /*    g_message("Managed window 0x%lx", window);*/
252 }
253
254 void client_unmanage_all()
255 {
256     while (client_list != NULL)
257         client_unmanage(client_list->data);
258 }
259
260 void client_unmanage(Client *client)
261 {
262     guint i;
263     int j;
264     GSList *it;
265
266 /*    g_message("Unmanaging window: %lx", client->window);*/
267
268     dispatch_client(Event_Client_Destroy, client, 0, 0);
269     g_assert(client != NULL);
270
271     /* remove the window from our save set */
272     XChangeSaveSet(ob_display, client->window, SetModeDelete);
273
274     /* we dont want events no more */
275     XSelectInput(ob_display, client->window, NoEventMask);
276
277     engine_frame_hide(client->frame);
278
279     client_list = g_slist_remove(client_list, client);
280     stacking_list = g_list_remove(stacking_list, client);
281     g_hash_table_remove(client_map, &client->window);
282
283     /* update the focus lists */
284     if (client->desktop == DESKTOP_ALL) {
285         for (i = 0; i < screen_num_desktops; ++i)
286             focus_order[i] = g_list_remove(focus_order[i], client);
287     } else {
288         i = client->desktop;
289         focus_order[i] = g_list_remove(focus_order[i], client);
290     }
291
292     /* once the client is out of the list, update the struts to remove it's
293        influence */
294     screen_update_struts();
295
296     /* tell our parent that we're gone */
297     if (client->transient_for != NULL)
298         client->transient_for->transients =
299             g_slist_remove(client->transient_for->transients, client);
300
301     /* tell our transients that we're gone */
302     for (it = client->transients; it != NULL; it = it->next) {
303         ((Client*)it->data)->transient_for = NULL;
304         client_calc_layer(it->data);
305     }
306
307     /* dispatch the unmapped event */
308     dispatch_client(Event_Client_Unmapped, client, 0, 0);
309     g_assert(client != NULL);
310
311     /* give the client its border back */
312     client_toggle_border(client, TRUE);
313
314     /* reparent the window out of the frame, and free the frame */
315     engine_frame_release_client(client->frame, client);
316     client->frame = NULL;
317      
318     if (ob_state != State_Exiting) {
319         /* these values should not be persisted across a window
320            unmapping/mapping */
321         prop_erase(client->window, prop_atoms.net_wm_desktop);
322         prop_erase(client->window, prop_atoms.net_wm_state);
323     } else {
324         /* if we're left in an iconic state, the client wont be mapped. this is
325            bad, since we will no longer be managing the window on restart */
326         if (client->iconic)
327             XMapWindow(ob_display, client->window);
328     }
329
330     /* free all data allocated in the client struct */
331     g_slist_free(client->transients);
332     for (j = 0; j < client->nicons; ++j)
333         g_free(client->icons[j].data);
334     if (client->nicons > 0)
335         g_free(client->icons);
336     g_free(client->title);
337     g_free(client->icon_title);
338     g_free(client->name);
339     g_free(client->class);
340     g_free(client->role);
341     g_free(client);
342      
343     /* update the list hints */
344     client_set_list();
345 }
346
347 static void client_toggle_border(Client *self, gboolean show)
348 {
349     /* adjust our idea of where the client is, based on its border. When the
350        border is removed, the client should now be considered to be in a
351        different position.
352        when re-adding the border to the client, the same operation needs to be
353        reversed. */
354     int oldx = self->area.x, oldy = self->area.y;
355     int x = oldx, y = oldy;
356     switch(self->gravity) {
357     default:
358     case NorthWestGravity:
359     case WestGravity:
360     case SouthWestGravity:
361         break;
362     case NorthEastGravity:
363     case EastGravity:
364     case SouthEastGravity:
365         if (show) x -= self->border_width * 2;
366         else      x += self->border_width * 2;
367         break;
368     case NorthGravity:
369     case SouthGravity:
370     case CenterGravity:
371     case ForgetGravity:
372     case StaticGravity:
373         if (show) x -= self->border_width;
374         else      x += self->border_width;
375         break;
376     }
377     switch(self->gravity) {
378     default:
379     case NorthWestGravity:
380     case NorthGravity:
381     case NorthEastGravity:
382         break;
383     case SouthWestGravity:
384     case SouthGravity:
385     case SouthEastGravity:
386         if (show) y -= self->border_width * 2;
387         else      y += self->border_width * 2;
388         break;
389     case WestGravity:
390     case EastGravity:
391     case CenterGravity:
392     case ForgetGravity:
393     case StaticGravity:
394         if (show) y -= self->border_width;
395         else      y += self->border_width;
396         break;
397     }
398     self->area.x = x;
399     self->area.y = y;
400
401     if (show) {
402         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
403
404         /* move the client so it is back it the right spot _with_ its
405            border! */
406         if (x != oldx || y != oldy)
407             XMoveWindow(ob_display, self->window, x, y);
408     } else
409         XSetWindowBorderWidth(ob_display, self->window, 0);
410 }
411
412
413 static void client_get_all(Client *self)
414 {
415     /* update EVERYTHING!! */
416
417     self->ignore_unmaps = 0;
418   
419     /* defaults */
420     self->frame = NULL;
421     self->title = self->icon_title = NULL;
422     self->name = self->class = self->role = NULL;
423     self->wmstate = NormalState;
424     self->transient = FALSE;
425     self->transients = NULL;
426     self->transient_for = NULL;
427     self->layer = -1;
428     self->urgent = FALSE;
429     self->positioned = FALSE;
430     self->disabled_decorations = 0;
431     self->group = None;
432     self->nicons = 0;
433
434     client_get_area(self);
435     client_get_desktop(self);
436     client_get_state(self);
437     client_get_shaped(self);
438
439     client_update_transient_for(self);
440     client_get_mwm_hints(self);
441     client_get_type(self);/* this can change the mwmhints for special cases */
442
443     client_update_protocols(self);
444
445     client_get_gravity(self); /* get the attribute gravity */
446     client_update_normal_hints(self); /* this may override the attribute
447                                          gravity */
448
449     /* got the type, the mwmhints, the protocols, and the normal hints
450        (min/max sizes), so we're ready to set up the decorations/functions */
451     client_setup_decor_and_functions(self);
452   
453     client_update_wmhints(self);
454     client_update_title(self);
455     client_update_icon_title(self);
456     client_update_class(self);
457     client_update_strut(self);
458     client_update_icons(self);
459     client_update_kwm_icon(self);
460
461     /* this makes sure that these windows appear on all desktops */
462     if (self->type == Type_Desktop)
463         self->desktop = DESKTOP_ALL;
464
465     /* set the desktop hint, to make sure that it always exists, and to
466        reflect any changes we've made here */
467     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
468
469     client_change_state(self);
470 }
471
472 static void client_get_area(Client *self)
473 {
474     XWindowAttributes wattrib;
475     Status ret;
476   
477     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
478     g_assert(ret != BadWindow);
479
480     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
481     self->border_width = wattrib.border_width;
482 }
483
484 static void client_get_desktop(Client *self)
485 {
486     unsigned int d;
487
488     if (PROP_GET32(self->window, net_wm_desktop, cardinal, d)) {
489         if (d >= screen_num_desktops && d != DESKTOP_ALL)
490             d = screen_num_desktops - 1;
491         self->desktop = d;
492     } else {
493         /* defaults to the current desktop */
494         self->desktop = screen_desktop;
495     }
496 }
497
498 static void client_get_state(Client *self)
499 {
500     gulong *state;
501     gulong num;
502   
503     self->modal = self->shaded = self->max_horz = self->max_vert =
504         self->fullscreen = self->above = self->below = self->iconic =
505         self->skip_taskbar = self->skip_pager = FALSE;
506
507     if (PROP_GET32U(self->window, net_wm_state, atom, state, num)) {
508         gulong i;
509         for (i = 0; i < num; ++i) {
510             if (state[i] == prop_atoms.net_wm_state_modal)
511                 self->modal = TRUE;
512             else if (state[i] == prop_atoms.net_wm_state_shaded)
513                 self->shaded = TRUE;
514             else if (state[i] == prop_atoms.net_wm_state_hidden)
515                 self->iconic = TRUE;
516             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
517                 self->skip_taskbar = TRUE;
518             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
519                 self->skip_pager = TRUE;
520             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
521                 self->fullscreen = TRUE;
522             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
523                 self->max_vert = TRUE;
524             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
525                 self->max_horz = TRUE;
526             else if (state[i] == prop_atoms.net_wm_state_above)
527                 self->above = TRUE;
528             else if (state[i] == prop_atoms.net_wm_state_below)
529                 self->below = TRUE;
530         }
531
532         g_free(state);
533     }
534 }
535
536 static void client_get_shaped(Client *self)
537 {
538     self->shaped = FALSE;
539 #ifdef   SHAPE
540     if (extensions_shape) {
541         int foo;
542         guint ufoo;
543         int s;
544
545         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
546
547         XShapeQueryExtents(ob_display, self->window, &s, &foo,
548                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
549                            &ufoo);
550         self->shaped = (s != 0);
551     }
552 #endif
553 }
554
555 void client_update_transient_for(Client *self)
556 {
557     Window t = None;
558     Client *c = NULL;
559
560     if (XGetTransientForHint(ob_display, self->window, &t) &&
561         t != self->window) { /* cant be transient to itself! */
562         self->transient = TRUE;
563         c = g_hash_table_lookup(client_map, &t);
564         g_assert(c != self);/* if this happens then we need to check for it*/
565
566         if (!c /*XXX: && _group*/) {
567             /* not transient to a client, see if it is transient for a
568                group */
569             if (/*t == _group->leader() || */
570                 t == None ||
571                 t == ob_root) {
572                 /* window is a transient for its group! */
573                 /* XXX: for now this is treated as non-transient.
574                    this needs to be fixed! */
575             }
576         }
577     } else
578         self->transient = FALSE;
579
580     /* if anything has changed... */
581     if (c != self->transient_for) {
582         if (self->transient_for)
583             /* remove from old parent */
584             self->transient_for->transients =
585                 g_slist_remove(self->transient_for->transients, self);
586         self->transient_for = c;
587         if (self->transient_for)
588             /* add to new parent */
589             self->transient_for->transients =
590                 g_slist_append(self->transient_for->transients, self);
591     }
592 }
593
594 static void client_get_mwm_hints(Client *self)
595 {
596     unsigned long num;
597     unsigned long *hints;
598
599     self->mwmhints.flags = 0; /* default to none */
600
601     if (PROP_GET32U(self->window, motif_wm_hints, motif_wm_hints, hints, num)) {
602         if (num >= MWM_ELEMENTS) {
603             self->mwmhints.flags = hints[0];
604             self->mwmhints.functions = hints[1];
605             self->mwmhints.decorations = hints[2];
606         }
607         g_free(hints);
608     }
609 }
610
611 void client_get_type(Client *self)
612 {
613     gulong *val, num, i;
614
615     self->type = -1;
616   
617     if (PROP_GET32U(self->window, net_wm_window_type, atom, val, num)) {
618         /* use the first value that we know about in the array */
619         for (i = 0; i < num; ++i) {
620             if (val[i] == prop_atoms.net_wm_window_type_desktop)
621                 self->type = Type_Desktop;
622             else if (val[i] == prop_atoms.net_wm_window_type_dock)
623                 self->type = Type_Dock;
624             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
625                 self->type = Type_Toolbar;
626             else if (val[i] == prop_atoms.net_wm_window_type_menu)
627                 self->type = Type_Menu;
628             else if (val[i] == prop_atoms.net_wm_window_type_utility)
629                 self->type = Type_Utility;
630             else if (val[i] == prop_atoms.net_wm_window_type_splash)
631                 self->type = Type_Splash;
632             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
633                 self->type = Type_Dialog;
634             else if (val[i] == prop_atoms.net_wm_window_type_normal)
635                 self->type = Type_Normal;
636             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
637                 /* prevent this window from getting any decor or
638                    functionality */
639                 self->mwmhints.flags &= (MwmFlag_Functions |
640                                          MwmFlag_Decorations);
641                 self->mwmhints.decorations = 0;
642                 self->mwmhints.functions = 0;
643             }
644             if (self->type != (WindowType) -1)
645                 break; /* grab the first legit type */
646         }
647         g_free(val);
648     }
649     
650     if (self->type == (WindowType) -1) {
651         /*the window type hint was not set, which means we either classify
652           ourself as a normal window or a dialog, depending on if we are a
653           transient. */
654         if (self->transient)
655             self->type = Type_Dialog;
656         else
657             self->type = Type_Normal;
658     }
659 }
660
661 void client_update_protocols(Client *self)
662 {
663     Atom *proto;
664     gulong num_return, i;
665
666     self->focus_notify = FALSE;
667     self->delete_window = FALSE;
668
669     if (PROP_GET32U(self->window, wm_protocols, atom, proto, num_return)) {
670         for (i = 0; i < num_return; ++i) {
671             if (proto[i] == prop_atoms.wm_delete_window) {
672                 /* this means we can request the window to close */
673                 self->delete_window = TRUE;
674             } else if (proto[i] == prop_atoms.wm_take_focus)
675                 /* if this protocol is requested, then the window will be
676                    notified whenever we want it to receive focus */
677                 self->focus_notify = TRUE;
678         }
679         g_free(proto);
680     }
681 }
682
683 static void client_get_gravity(Client *self)
684 {
685     XWindowAttributes wattrib;
686     Status ret;
687
688     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
689     g_assert(ret != BadWindow);
690     self->gravity = wattrib.win_gravity;
691 }
692
693 void client_update_normal_hints(Client *self)
694 {
695     XSizeHints size;
696     long ret;
697     int oldgravity = self->gravity;
698
699     /* defaults */
700     self->min_ratio = 0.0f;
701     self->max_ratio = 0.0f;
702     SIZE_SET(self->size_inc, 1, 1);
703     SIZE_SET(self->base_size, 0, 0);
704     SIZE_SET(self->min_size, 0, 0);
705     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
706
707     /* get the hints from the window */
708     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
709         self->positioned = (size.flags & (PPosition|USPosition));
710
711         if (size.flags & PWinGravity) {
712             self->gravity = size.win_gravity;
713       
714             /* if the client has a frame, i.e. has already been mapped and
715                is changing its gravity */
716             if (self->frame && self->gravity != oldgravity) {
717                 /* move our idea of the client's position based on its new
718                    gravity */
719                 self->area.x = self->frame->area.x;
720                 self->area.y = self->frame->area.y;
721                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
722             }
723         }
724
725         if (size.flags & PAspect) {
726             if (size.min_aspect.y)
727                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
728             if (size.max_aspect.y)
729                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
730         }
731
732         if (size.flags & PMinSize)
733             SIZE_SET(self->min_size, size.min_width, size.min_height);
734     
735         if (size.flags & PMaxSize)
736             SIZE_SET(self->max_size, size.max_width, size.max_height);
737     
738         if (size.flags & PBaseSize)
739             SIZE_SET(self->base_size, size.base_width, size.base_height);
740     
741         if (size.flags & PResizeInc)
742             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
743     }
744 }
745
746 void client_setup_decor_and_functions(Client *self)
747 {
748     /* start with everything (cept fullscreen) */
749     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
750         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize;
751     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
752         Func_Shade;
753     if (self->delete_window) {
754         self->decorations |= Decor_Close;
755         self->functions |= Func_Close;
756     }
757
758     if (!(self->min_size.width < self->max_size.width ||
759           self->min_size.height < self->max_size.height)) {
760         self->decorations &= ~(Decor_Maximize | Decor_Handle);
761         self->functions &= ~(Func_Resize | Func_Maximize);
762     }
763
764     switch (self->type) {
765     case Type_Normal:
766         /* normal windows retain all of the possible decorations and
767            functionality, and are the only windows that you can fullscreen */
768         self->functions |= Func_Fullscreen;
769         break;
770
771     case Type_Dialog:
772         /* dialogs cannot be maximized */
773         self->decorations &= ~Decor_Maximize;
774         self->functions &= ~Func_Maximize;
775         break;
776
777     case Type_Menu:
778     case Type_Toolbar:
779     case Type_Utility:
780         /* these windows get less functionality */
781         self->decorations &= ~(Decor_Iconify | Decor_Handle);
782         self->functions &= ~(Func_Iconify | Func_Resize);
783         break;
784
785     case Type_Desktop:
786     case Type_Dock:
787     case Type_Splash:
788         /* none of these windows are manipulated by the window manager */
789         self->decorations = 0;
790         self->functions = 0;
791         break;
792     }
793
794     /* Mwm Hints are applied subtractively to what has already been chosen for
795        decor and functionality */
796     if (self->mwmhints.flags & MwmFlag_Decorations) {
797         if (! (self->mwmhints.decorations & MwmDecor_All)) {
798             if (! (self->mwmhints.decorations & MwmDecor_Border))
799                 self->decorations &= ~Decor_Border;
800             if (! (self->mwmhints.decorations & MwmDecor_Handle))
801                 self->decorations &= ~Decor_Handle;
802             if (! (self->mwmhints.decorations & MwmDecor_Title))
803                 self->decorations &= ~Decor_Titlebar;
804             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
805                 self->decorations &= ~Decor_Iconify;
806             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
807                 self->decorations &= ~Decor_Maximize;
808         }
809     }
810
811     if (self->mwmhints.flags & MwmFlag_Functions) {
812         if (! (self->mwmhints.functions & MwmFunc_All)) {
813             if (! (self->mwmhints.functions & MwmFunc_Resize))
814                 self->functions &= ~Func_Resize;
815             if (! (self->mwmhints.functions & MwmFunc_Move))
816                 self->functions &= ~Func_Move;
817             if (! (self->mwmhints.functions & MwmFunc_Iconify))
818                 self->functions &= ~Func_Iconify;
819             if (! (self->mwmhints.functions & MwmFunc_Maximize))
820                 self->functions &= ~Func_Maximize;
821             /* dont let mwm hints kill the close button
822                if (! (self->mwmhints.functions & MwmFunc_Close))
823                self->functions &= ~Func_Close; */
824         }
825     }
826
827     /* can't maximize without moving/resizing */
828     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
829         self->functions &= ~(Func_Maximize | Func_Fullscreen);
830
831     /* finally, user specified disabled decorations are applied to subtract
832        decorations */
833     if (self->disabled_decorations & Decor_Titlebar)
834         self->decorations &= ~Decor_Titlebar;
835     if (self->disabled_decorations & Decor_Handle)
836         self->decorations &= ~Decor_Handle;
837     if (self->disabled_decorations & Decor_Border)
838         self->decorations &= ~Decor_Border;
839     if (self->disabled_decorations & Decor_Iconify)
840         self->decorations &= ~Decor_Iconify;
841     if (self->disabled_decorations & Decor_Maximize)
842         self->decorations &= ~Decor_Maximize;
843     if (self->disabled_decorations & Decor_AllDesktops)
844         self->decorations &= ~Decor_AllDesktops;
845     if (self->disabled_decorations & Decor_Close)
846         self->decorations &= ~Decor_Close;
847
848     /* if we don't have a titlebar, then we cannot shade! */
849     if (!(self->decorations & Decor_Titlebar))
850         self->functions &= ~Func_Shade;
851
852     client_change_allowed_actions(self);
853
854     if (self->frame) {
855         /* change the decors on the frame, and with more/less decorations,
856            we may also need to be repositioned */
857         engine_frame_adjust_area(self->frame, TRUE, TRUE);
858         /* with new decor, the window's maximized size may change */
859         client_remaximize(self);
860     }
861 }
862
863 static void client_change_allowed_actions(Client *self)
864 {
865     Atom actions[9];
866     int num = 0;
867
868     actions[num++] = prop_atoms.net_wm_action_change_desktop;
869
870     if (self->functions & Func_Shade)
871         actions[num++] = prop_atoms.net_wm_action_shade;
872     if (self->functions & Func_Close)
873         actions[num++] = prop_atoms.net_wm_action_close;
874     if (self->functions & Func_Move)
875         actions[num++] = prop_atoms.net_wm_action_move;
876     if (self->functions & Func_Iconify)
877         actions[num++] = prop_atoms.net_wm_action_minimize;
878     if (self->functions & Func_Resize)
879         actions[num++] = prop_atoms.net_wm_action_resize;
880     if (self->functions & Func_Fullscreen)
881         actions[num++] = prop_atoms.net_wm_action_fullscreen;
882     if (self->functions & Func_Maximize) {
883         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
884         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
885     }
886
887     PROP_SET32A(self->window, net_wm_allowed_actions, atom, actions, num);
888
889     /* make sure the window isn't breaking any rules now */
890
891     if (!(self->functions & Func_Shade) && self->shaded) {
892         if (self->frame) client_shade(self, FALSE);
893         else self->shaded = FALSE;
894     }
895     if (!(self->functions & Func_Iconify) && self->iconic) {
896         if (self->frame) client_iconify(self, FALSE, TRUE);
897         else self->iconic = FALSE;
898     }
899     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
900         if (self->frame) client_fullscreen(self, FALSE, TRUE);
901         else self->fullscreen = FALSE;
902     }
903     if (!(self->functions & Func_Maximize) && (self->max_horz ||
904                                                self->max_vert)) {
905         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
906         else self->max_vert = self->max_horz = FALSE;
907     }
908 }
909
910 void client_remaximize(Client *self)
911 {
912     int dir;
913     if (self->max_horz && self->max_vert)
914         dir = 0;
915     else if (self->max_horz)
916         dir = 1;
917     else if (self->max_vert)
918         dir = 2;
919     else
920         return; /* not maximized */
921     self->max_horz = self->max_vert = FALSE;
922     client_maximize(self, TRUE, dir, FALSE);
923 }
924
925 void client_update_wmhints(Client *self)
926 {
927     XWMHints *hints;
928     gboolean ur = FALSE;
929
930     /* assume a window takes input if it doesnt specify */
931     self->can_focus = TRUE;
932   
933     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
934         if (hints->flags & InputHint)
935             self->can_focus = hints->input;
936
937         /* only do this when starting! */
938         if (ob_state == State_Starting && (hints->flags & StateHint))
939             self->iconic = hints->initial_state == IconicState;
940
941         if (hints->flags & XUrgencyHint)
942             ur = TRUE;
943
944         if (hints->flags & WindowGroupHint) {
945             if (hints->window_group != self->group) {
946                 /* XXX: remove from the old group if there was one */
947                 self->group = hints->window_group;
948                 /* XXX: do stuff with the group */
949             }
950         } else /* no group! */
951             self->group = None;
952
953         if (hints->flags & IconPixmapHint) {
954             client_update_kwm_icon(self);
955             /* try get the kwm icon first, this is a fallback only */
956             if (self->pixmap_icon == None) {
957                 self->pixmap_icon = hints->icon_pixmap;
958                 if (hints->flags & IconMaskHint)
959                     self->pixmap_icon_mask = hints->icon_mask;
960                 else
961                     self->pixmap_icon_mask = None;
962
963                 if (self->frame)
964                     engine_frame_adjust_icon(self->frame);
965             }
966         }
967
968         XFree(hints);
969     }
970
971     if (ur != self->urgent) {
972         self->urgent = ur;
973         g_message("Urgent Hint for 0x%lx: %s", self->window,
974                   ur ? "ON" : "OFF");
975         /* fire the urgent callback if we're mapped, otherwise, wait until
976            after we're mapped */
977         if (self->frame)
978             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
979     }
980 }
981
982 void client_update_title(Client *self)
983 {
984     gchar *data = NULL;
985
986     g_free(self->title);
987      
988     /* try netwm */
989     if (!PROP_GETS(self->window, net_wm_name, utf8, data)) {
990         /* try old x stuff */
991         if (PROP_GETS(self->window, wm_name, string, data)) {
992             /* convert it to UTF-8 */
993             gsize r, w;
994             gchar *u;
995
996             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
997             if (u == NULL) {
998                 g_warning("Unable to convert string to UTF-8");
999             } else {
1000                 g_free(data);
1001                 data = u;
1002             }
1003         }
1004         if (data == NULL)
1005             data = g_strdup("Unnamed Window");
1006
1007         PROP_SETS(self->window, net_wm_visible_name, utf8, data);
1008     }
1009
1010     self->title = data;
1011
1012     if (self->frame)
1013         engine_frame_adjust_title(self->frame);
1014 }
1015
1016 void client_update_icon_title(Client *self)
1017 {
1018     gchar *data = NULL;
1019
1020     g_free(self->icon_title);
1021      
1022     /* try netwm */
1023     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, data)) {
1024         /* try old x stuff */
1025         if (PROP_GETS(self->window, wm_icon_name, string, data)) {
1026             /* convert it to UTF-8 */
1027             gsize r, w;
1028             gchar *u;
1029
1030             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
1031             if (u == NULL) {
1032                 g_warning("Unable to convert string to UTF-8");
1033             } else {
1034                 g_free(data);
1035                 data = u;
1036             }
1037         }
1038         if (data == NULL)
1039             data = g_strdup("Unnamed Window");
1040
1041         PROP_SETS(self->window, net_wm_visible_icon_name, utf8, data);
1042     }
1043
1044     self->icon_title = data;
1045 }
1046
1047 void client_update_class(Client *self)
1048 {
1049     GPtrArray *data;
1050     gchar *s;
1051     guint i;
1052
1053     if (self->name) g_free(self->name);
1054     if (self->class) g_free(self->class);
1055     if (self->role) g_free(self->role);
1056
1057     self->name = self->class = self->role = NULL;
1058
1059     data = g_ptr_array_new();
1060      
1061     if (PROP_GETSA(self->window, wm_class, string, data)) {
1062         if (data->len > 0)
1063             self->name = g_strdup(g_ptr_array_index(data, 0));
1064         if (data->len > 1)
1065             self->class = g_strdup(g_ptr_array_index(data, 1));
1066     }
1067      
1068     for (i = 0; i < data->len; ++i)
1069         g_free(g_ptr_array_index(data, i));
1070     g_ptr_array_free(data, TRUE);
1071
1072     if (PROP_GETS(self->window, wm_window_role, string, s))
1073         self->role = g_strdup(s);
1074
1075     if (self->name == NULL) self->name = g_strdup("");
1076     if (self->class == NULL) self->class = g_strdup("");
1077     if (self->role == NULL) self->role = g_strdup("");
1078 }
1079
1080 void client_update_strut(Client *self)
1081 {
1082     gulong *data;
1083
1084     if (PROP_GET32A(self->window, net_wm_strut, cardinal, data, 4)) {
1085         STRUT_SET(self->strut, data[0], data[1], data[2], data[3]);
1086         g_free(data);
1087     } else
1088         STRUT_SET(self->strut, 0, 0, 0, 0);
1089
1090     /* updating here is pointless while we're being mapped cuz we're not in
1091        the client list yet */
1092     if (self->frame)
1093         screen_update_struts();
1094 }
1095
1096 void client_update_icons(Client *self)
1097 {
1098     unsigned long num;
1099     unsigned long *data;
1100     unsigned long w, h, i;
1101     int j;
1102
1103     for (j = 0; j < self->nicons; ++j)
1104         g_free(self->icons[j].data);
1105     if (self->nicons > 0)
1106         g_free(self->icons);
1107     self->nicons = 0;
1108
1109     if (PROP_GET32U(self->window, net_wm_icon, cardinal, data, num)) {
1110         /* figure out how many valid icons are in here */
1111         i = 0;
1112         while (num - i > 2) {
1113             w = data[i++];
1114             h = data[i++];
1115             i += w * h;
1116             if (i > num) break;
1117             ++self->nicons;
1118         }
1119
1120         self->icons = g_new(Icon, self->nicons);
1121     
1122         /* store the icons */
1123         i = 0;
1124         for (j = 0; j < self->nicons; ++j) {
1125             w = self->icons[j].width = data[i++];
1126             h = self->icons[j].height = data[i++];
1127             self->icons[j].data =
1128                 g_memdup(&data[i], w * h * sizeof(gulong));
1129             i += w * h;
1130             g_assert(i <= num);
1131         }
1132
1133         g_free(data);
1134     }
1135
1136     if (self->frame)
1137         engine_frame_adjust_icon(self->frame);
1138 }
1139
1140 void client_update_kwm_icon(Client *self)
1141 {
1142     Pixmap *data;
1143
1144     if (PROP_GET32A(self->window, kwm_win_icon, kwm_win_icon, data, 2)) {
1145         self->pixmap_icon = data[0];
1146         self->pixmap_icon_mask = data[1];
1147         g_free(data);
1148     } else {
1149         self->pixmap_icon = self->pixmap_icon_mask = None;
1150     }
1151     if (self->frame)
1152         engine_frame_adjust_icon(self->frame);
1153 }
1154
1155 static void client_change_state(Client *self)
1156 {
1157     unsigned long state[2];
1158     Atom netstate[10];
1159     int num;
1160
1161     state[0] = self->wmstate;
1162     state[1] = None;
1163     PROP_SET32A(self->window, wm_state, wm_state, state, 2);
1164
1165     num = 0;
1166     if (self->modal)
1167         netstate[num++] = prop_atoms.net_wm_state_modal;
1168     if (self->shaded)
1169         netstate[num++] = prop_atoms.net_wm_state_shaded;
1170     if (self->iconic)
1171         netstate[num++] = prop_atoms.net_wm_state_hidden;
1172     if (self->skip_taskbar)
1173         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1174     if (self->skip_pager)
1175         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1176     if (self->fullscreen)
1177         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1178     if (self->max_vert)
1179         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1180     if (self->max_horz)
1181         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1182     if (self->above)
1183         netstate[num++] = prop_atoms.net_wm_state_above;
1184     if (self->below)
1185         netstate[num++] = prop_atoms.net_wm_state_below;
1186     PROP_SET32A(self->window, net_wm_state, atom, netstate, num);
1187
1188     client_calc_layer(self);
1189
1190     if (self->frame)
1191         engine_frame_adjust_state(self->frame);
1192 }
1193
1194 static Client *search_focus_tree(Client *node, Client *skip)
1195 {
1196     GSList *it;
1197     Client *ret;
1198
1199     for (it = node->transients; it != NULL; it = it->next) {
1200         Client *c = it->data;
1201         if (c == skip) continue; /* circular? */
1202         if ((ret = search_focus_tree(c, skip))) return ret;
1203         if (client_focused(c)) return c;
1204     }
1205     return NULL;
1206 }
1207
1208 void client_calc_layer(Client *self)
1209 {
1210     StackLayer l;
1211     gboolean fs;
1212     Client *c;
1213
1214     /* are we fullscreen, or do we have a fullscreen transient parent? */
1215     c = self;
1216     fs = FALSE;
1217     while (c) {
1218         if (c->fullscreen) {
1219             fs = TRUE;
1220             break;
1221         }
1222         c = c->transient_for;
1223     }
1224     if (!fs && self->fullscreen) {
1225         /* is one of our transients focused? */
1226         c = search_focus_tree(self, self);
1227         if (c != NULL) fs = TRUE;
1228     }
1229   
1230     if (self->iconic) l = Layer_Icon;
1231     else if (fs) l = Layer_Fullscreen;
1232     else if (self->type == Type_Desktop) l = Layer_Desktop;
1233     else if (self->type == Type_Dock) {
1234         if (!self->below) l = Layer_Top;
1235         else l = Layer_Normal;
1236     }
1237     else if (self->above) l = Layer_Above;
1238     else if (self->below) l = Layer_Below;
1239     else l = Layer_Normal;
1240      
1241     if (l != self->layer) {
1242         self->layer = l;
1243         if (self->frame)
1244             stacking_raise(self);
1245     }
1246 }
1247
1248 gboolean client_should_show(Client *self)
1249 {
1250     if (self->iconic) return FALSE;
1251     else if (!(self->desktop == screen_desktop ||
1252                self->desktop == DESKTOP_ALL)) return FALSE;
1253     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1254     
1255     return TRUE;
1256 }
1257
1258 static void client_showhide(Client *self)
1259 {
1260
1261     if (client_should_show(self))
1262         engine_frame_show(self->frame);
1263     else
1264         engine_frame_hide(self->frame);
1265 }
1266
1267 gboolean client_normal(Client *self) {
1268     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1269               self->type == Type_Splash);
1270 }
1271
1272 static void client_apply_startup_state(Client *self)
1273 {
1274     /* these are in a carefully crafted order.. */
1275
1276     if (self->iconic) {
1277         self->iconic = FALSE;
1278         client_iconify(self, TRUE, FALSE);
1279     }
1280     if (self->fullscreen) {
1281         self->fullscreen = FALSE;
1282         client_fullscreen(self, TRUE, FALSE);
1283     }
1284     if (self->shaded) {
1285         self->shaded = FALSE;
1286         client_shade(self, TRUE);
1287     }
1288     if (self->urgent)
1289         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1290   
1291     if (self->max_vert && self->max_horz) {
1292         self->max_vert = self->max_horz = FALSE;
1293         client_maximize(self, TRUE, 0, FALSE);
1294     } else if (self->max_vert) {
1295         self->max_vert = FALSE;
1296         client_maximize(self, TRUE, 2, FALSE);
1297     } else if (self->max_horz) {
1298         self->max_horz = FALSE;
1299         client_maximize(self, TRUE, 1, FALSE);
1300     }
1301
1302     /* nothing to do for the other states:
1303        skip_taskbar
1304        skip_pager
1305        modal
1306        above
1307        below
1308     */
1309 }
1310
1311 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1312                       gboolean user, gboolean final)
1313 {
1314     gboolean moved = FALSE, resized = FALSE;
1315
1316     /* set the size and position if fullscreen */
1317     if (self->fullscreen) {
1318         x = 0;
1319         y = 0;
1320         w = screen_physical_size.width;
1321         h = screen_physical_size.height;
1322     } else {
1323         /* set the size and position if maximized */
1324         if (self->max_horz) {
1325             x = screen_area(self->desktop)->x - self->frame->size.left;
1326             w = screen_area(self->desktop)->x +
1327                 screen_area(self->desktop)->width;
1328         }
1329         if (self->max_vert) {
1330             y = screen_area(self->desktop)->y;
1331             h = screen_area(self->desktop)->y +
1332                 screen_area(self->desktop)->height -
1333                 self->frame->size.top - self->frame->size.bottom;
1334         }
1335     }
1336
1337     /* these override the above states! if you cant move you can't move! */
1338     if (user) {
1339         if (!(self->functions & Func_Move)) {
1340             x = self->area.x;
1341             y = self->area.y;
1342         }
1343         if (!(self->functions & Func_Resize)) {
1344             w = self->area.width;
1345             h = self->area.height;
1346         }
1347     }
1348
1349     if (!(w == self->area.width && h == self->area.height)) {
1350         w -= self->base_size.width;
1351         h -= self->base_size.height;
1352
1353         if (user) {
1354             /* for interactive resizing. have to move half an increment in each
1355                direction. */
1356
1357             /* how far we are towards the next size inc */
1358             int mw = w % self->size_inc.width; 
1359             int mh = h % self->size_inc.height;
1360             /* amount to add */
1361             int aw = self->size_inc.width / 2;
1362             int ah = self->size_inc.height / 2;
1363             /* don't let us move into a new size increment */
1364             if (mw + aw >= self->size_inc.width)
1365                 aw = self->size_inc.width - mw - 1;
1366             if (mh + ah >= self->size_inc.height)
1367                 ah = self->size_inc.height - mh - 1;
1368             w += aw;
1369             h += ah;
1370     
1371             /* if this is a user-requested resize, then check against min/max
1372                sizes and aspect ratios */
1373
1374             /* smaller than min size or bigger than max size? */
1375             if (w > self->max_size.width) w = self->max_size.width;
1376             if (w < self->min_size.width) w = self->min_size.width;
1377             if (h > self->max_size.height) h = self->max_size.height;
1378             if (h < self->min_size.height) h = self->min_size.height;
1379
1380             /* adjust the height ot match the width for the aspect ratios */
1381             if (self->min_ratio)
1382                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1383             if (self->max_ratio)
1384                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1385         }
1386
1387         /* keep to the increments */
1388         w /= self->size_inc.width;
1389         h /= self->size_inc.height;
1390
1391         /* you cannot resize to nothing */
1392         if (w < 1) w = 1;
1393         if (h < 1) h = 1;
1394   
1395         /* store the logical size */
1396         SIZE_SET(self->logical_size, w, h);
1397
1398         w *= self->size_inc.width;
1399         h *= self->size_inc.height;
1400
1401         w += self->base_size.width;
1402         h += self->base_size.height;
1403     }
1404
1405     switch (anchor) {
1406     case Corner_TopLeft:
1407         break;
1408     case Corner_TopRight:
1409         x -= w - self->area.width;
1410         break;
1411     case Corner_BottomLeft:
1412         y -= h - self->area.height;
1413         break;
1414     case Corner_BottomRight:
1415         x -= w - self->area.width;
1416         y -= h - self->area.height;
1417         break;
1418     }
1419
1420     moved = x != self->area.x || y != self->area.y;
1421     resized = w != self->area.width || h != self->area.height;
1422
1423     RECT_SET(self->area, x, y, w, h);
1424
1425     if (resized)
1426         XResizeWindow(ob_display, self->window, w, h);
1427
1428     /* move/resize the frame to match the request */
1429     if (self->frame) {
1430         if (moved || resized)
1431             engine_frame_adjust_area(self->frame, moved, resized);
1432
1433         if (!user || final) {
1434             XEvent event;
1435             event.type = ConfigureNotify;
1436             event.xconfigure.display = ob_display;
1437             event.xconfigure.event = self->window;
1438             event.xconfigure.window = self->window;
1439     
1440             /* root window coords with border in mind */
1441             event.xconfigure.x = x - self->border_width +
1442                 self->frame->size.left;
1443             event.xconfigure.y = y - self->border_width +
1444                 self->frame->size.top;
1445     
1446             event.xconfigure.width = self->area.width;
1447             event.xconfigure.height = self->area.height;
1448             event.xconfigure.border_width = self->border_width;
1449             event.xconfigure.above = self->frame->plate;
1450             event.xconfigure.override_redirect = FALSE;
1451             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1452                        FALSE, StructureNotifyMask, &event);
1453         }
1454     }
1455 }
1456
1457 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1458 {
1459     int x, y, w, h;
1460
1461     if (!(self->functions & Func_Fullscreen) || /* can't */
1462         self->fullscreen == fs) return;         /* already done */
1463
1464     self->fullscreen = fs;
1465     client_change_state(self); /* change the state hints on the client */
1466
1467     if (fs) {
1468         /* save the functions and remove them */
1469         self->pre_fs_func = self->functions;
1470         self->functions &= (Func_Close | Func_Fullscreen |
1471                             Func_Iconify);
1472         /* save the decorations and remove them */
1473         self->pre_fs_decor = self->decorations;
1474         self->decorations = 0;
1475         if (savearea) {
1476             long dimensions[4];
1477             dimensions[0] = self->area.x;
1478             dimensions[1] = self->area.y;
1479             dimensions[2] = self->area.width;
1480             dimensions[3] = self->area.height;
1481   
1482             PROP_SET32A(self->window, openbox_premax, cardinal,
1483                         dimensions, 4);
1484         }
1485
1486         /* these are not actually used cuz client_configure will set them
1487            as appropriate when the window is fullscreened */
1488         x = y = w = h = 0;
1489     } else {
1490         long *dimensions;
1491
1492         self->functions = self->pre_fs_func;
1493         self->decorations = self->pre_fs_decor;
1494           
1495         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1496                         dimensions, 4)) {
1497             x = dimensions[0];
1498             y = dimensions[1];
1499             w = dimensions[2];
1500             h = dimensions[3];
1501             g_free(dimensions);
1502         } else {
1503             /* pick some fallbacks... */
1504             x = screen_area(self->desktop)->x +
1505                 screen_area(self->desktop)->width / 4;
1506             y = screen_area(self->desktop)->y +
1507                 screen_area(self->desktop)->height / 4;
1508             w = screen_area(self->desktop)->width / 2;
1509             h = screen_area(self->desktop)->height / 2;
1510         }
1511     }
1512
1513     client_change_allowed_actions(self); /* based on the new _functions */
1514
1515     /* when fullscreening, don't obey things like increments, fill the
1516        screen */
1517     client_configure(self, Corner_TopLeft, x, y, w, h, !fs, TRUE);
1518
1519     /* raise (back) into our stacking layer */
1520     stacking_raise(self);
1521
1522     /* try focus us when we go into fullscreen mode */
1523     client_focus(self);
1524 }
1525
1526 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1527 {
1528     if (self->iconic == iconic) return; /* nothing to do */
1529
1530     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1531               self->window);
1532
1533     self->iconic = iconic;
1534
1535     if (iconic) {
1536         self->wmstate = IconicState;
1537         self->ignore_unmaps++;
1538         /* we unmap the client itself so that we can get MapRequest events,
1539            and because the ICCCM tells us to! */
1540         XUnmapWindow(ob_display, self->window);
1541     } else {
1542         if (curdesk)
1543             client_set_desktop(self, screen_desktop);
1544         self->wmstate = self->shaded ? IconicState : NormalState;
1545         XMapWindow(ob_display, self->window);
1546     }
1547     client_change_state(self);
1548     client_showhide(self);
1549     screen_update_struts();
1550
1551     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1552                     self, 0, 0);
1553 }
1554
1555 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1556 {
1557     int x, y, w, h;
1558      
1559     g_assert(dir == 0 || dir == 1 || dir == 2);
1560     if (!(self->functions & Func_Maximize)) return; /* can't */
1561
1562     /* check if already done */
1563     if (max) {
1564         if (dir == 0 && self->max_horz && self->max_vert) return;
1565         if (dir == 1 && self->max_horz) return;
1566         if (dir == 2 && self->max_vert) return;
1567     } else {
1568         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1569         if (dir == 1 && !self->max_horz) return;
1570         if (dir == 2 && !self->max_vert) return;
1571     }
1572
1573     /* work with the frame's coords */
1574     x = self->frame->area.x;
1575     y = self->frame->area.y;
1576     w = self->area.width;
1577     h = self->area.height;
1578
1579     if (max) {
1580         if (savearea) {
1581             long dimensions[4];
1582             long *readdim;
1583
1584             dimensions[0] = x;
1585             dimensions[1] = y;
1586             dimensions[2] = w;
1587             dimensions[3] = h;
1588
1589             /* get the property off the window and use it for the dimensions
1590                we are already maxed on */
1591             if (PROP_GET32A(self->window, openbox_premax, cardinal,
1592                             readdim, 4)) {
1593                 if (self->max_horz) {
1594                     dimensions[0] = readdim[0];
1595                     dimensions[2] = readdim[2];
1596                 }
1597                 if (self->max_vert) {
1598                     dimensions[1] = readdim[1];
1599                     dimensions[3] = readdim[3];
1600                 }
1601                 g_free(readdim);
1602             }
1603
1604             PROP_SET32A(self->window, openbox_premax, cardinal,
1605                         dimensions, 4);
1606         }
1607
1608         /* pass the client's current position info. the client_configure
1609            will move/size stuff as appropriate for a maximized window */
1610         x = self->area.x;
1611         y = self->area.y;
1612         w = self->area.width;
1613         h = self->area.height;
1614     } else {
1615         long *dimensions;
1616
1617         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1618                         dimensions, 4)) {
1619             if (dir == 0 || dir == 1) { /* horz */
1620                 x = dimensions[0];
1621                 w = dimensions[2];
1622             }
1623             if (dir == 0 || dir == 2) { /* vert */
1624                 y = dimensions[1];
1625                 h = dimensions[3];
1626             }
1627             g_free(dimensions);
1628         } else {
1629             /* pick some fallbacks... */
1630             if (dir == 0 || dir == 1) { /* horz */
1631                 x = screen_area(self->desktop)->x +
1632                     screen_area(self->desktop)->width / 4;
1633                 w = screen_area(self->desktop)->width / 2;
1634             }
1635             if (dir == 0 || dir == 2) { /* vert */
1636                 y = screen_area(self->desktop)->y +
1637                     screen_area(self->desktop)->height / 4;
1638                 h = screen_area(self->desktop)->height / 2;
1639             }
1640         }
1641     }
1642
1643     if (dir == 0 || dir == 1) /* horz */
1644         self->max_horz = max;
1645     if (dir == 0 || dir == 2) /* vert */
1646         self->max_vert = max;
1647
1648     if (!self->max_horz && !self->max_vert)
1649         PROP_ERASE(self->window, openbox_premax);
1650
1651     client_change_state(self); /* change the state hints on the client */
1652
1653     /* figure out where the client should be going */
1654     frame_frame_gravity(self->frame, &x, &y);
1655     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1656 }
1657
1658 void client_shade(Client *self, gboolean shade)
1659 {
1660     if (!(self->functions & Func_Shade) || /* can't */
1661         self->shaded == shade) return;     /* already done */
1662
1663     /* when we're iconic, don't change the wmstate */
1664     if (!self->iconic)
1665         self->wmstate = shade ? IconicState : NormalState;
1666     self->shaded = shade;
1667     client_change_state(self);
1668     /* resize the frame to just the titlebar */
1669     engine_frame_adjust_area(self->frame, FALSE, FALSE);
1670 }
1671
1672 void client_close(Client *self)
1673 {
1674     XEvent ce;
1675
1676     if (!(self->functions & Func_Close)) return;
1677
1678     /*
1679       XXX: itd be cool to do timeouts and shit here for killing the client's
1680       process off
1681       like... if the window is around after 5 seconds, then the close button
1682       turns a nice red, and if this function is called again, the client is
1683       explicitly killed.
1684     */
1685
1686     ce.xclient.type = ClientMessage;
1687     ce.xclient.message_type =  prop_atoms.wm_protocols;
1688     ce.xclient.display = ob_display;
1689     ce.xclient.window = self->window;
1690     ce.xclient.format = 32;
1691     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
1692     ce.xclient.data.l[1] = event_lasttime;
1693     ce.xclient.data.l[2] = 0l;
1694     ce.xclient.data.l[3] = 0l;
1695     ce.xclient.data.l[4] = 0l;
1696     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1697 }
1698
1699 void client_kill(Client *self)
1700 {
1701     XKillClient(ob_display, self->window);
1702 }
1703
1704 void client_set_desktop(Client *self, guint target)
1705 {
1706     guint old, i;
1707
1708     if (target == self->desktop) return;
1709   
1710     g_message("Setting desktop %u\n", target);
1711
1712     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
1713
1714     old = self->desktop;
1715     self->desktop = target;
1716     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
1717     /* the frame can display the current desktop state */
1718     engine_frame_adjust_state(self->frame);
1719     /* 'move' the window to the new desktop */
1720     client_showhide(self);
1721     screen_update_struts();
1722
1723     /* update the focus lists */
1724     if (old == DESKTOP_ALL) {
1725         for (i = 0; i < screen_num_desktops; ++i)
1726             focus_order[i] = g_list_remove(focus_order[i], self);
1727         focus_order[target] = g_list_prepend(focus_order[target], self);
1728     } else {
1729         focus_order[old] = g_list_remove(focus_order[old], self);
1730         if (target == DESKTOP_ALL)
1731             for (i = 0; i < screen_num_desktops; ++i)
1732                 focus_order[i] = g_list_prepend(focus_order[i], self);
1733     }
1734
1735     dispatch_client(Event_Client_Desktop, self, target, old);
1736 }
1737
1738 static Client *search_modal_tree(Client *node, Client *skip)
1739 {
1740     GSList *it;
1741     Client *ret;
1742   
1743     for (it = node->transients; it != NULL; it = it->next) {
1744         Client *c = it->data;
1745         if (c == skip) continue; /* circular? */
1746         if ((ret = search_modal_tree(c, skip))) return ret;
1747         if (c->modal) return c;
1748     }
1749     return NULL;
1750 }
1751
1752 Client *client_find_modal_child(Client *self)
1753 {
1754     return search_modal_tree(self, self);
1755 }
1756
1757 gboolean client_validate(Client *self)
1758 {
1759     XEvent e; 
1760
1761     XSync(ob_display, FALSE); /* get all events on the server */
1762
1763     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
1764         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
1765         XPutBackEvent(ob_display, &e);
1766         return FALSE;
1767     }
1768
1769     return TRUE;
1770 }
1771
1772 void client_set_wm_state(Client *self, long state)
1773 {
1774     if (state == self->wmstate) return; /* no change */
1775   
1776     switch (state) {
1777     case IconicState:
1778         client_iconify(self, TRUE, TRUE);
1779         break;
1780     case NormalState:
1781         client_iconify(self, FALSE, TRUE);
1782         break;
1783     }
1784 }
1785
1786 void client_set_state(Client *self, Atom action, long data1, long data2)
1787 {
1788     gboolean shaded = self->shaded;
1789     gboolean fullscreen = self->fullscreen;
1790     gboolean max_horz = self->max_horz;
1791     gboolean max_vert = self->max_vert;
1792     int i;
1793
1794     if (!(action == prop_atoms.net_wm_state_add ||
1795           action == prop_atoms.net_wm_state_remove ||
1796           action == prop_atoms.net_wm_state_toggle))
1797         /* an invalid action was passed to the client message, ignore it */
1798         return; 
1799
1800     for (i = 0; i < 2; ++i) {
1801         Atom state = i == 0 ? data1 : data2;
1802     
1803         if (!state) continue;
1804
1805         /* if toggling, then pick whether we're adding or removing */
1806         if (action == prop_atoms.net_wm_state_toggle) {
1807             if (state == prop_atoms.net_wm_state_modal)
1808                 action = self->modal ? prop_atoms.net_wm_state_remove :
1809                     prop_atoms.net_wm_state_add;
1810             else if (state == prop_atoms.net_wm_state_maximized_vert)
1811                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
1812                     prop_atoms.net_wm_state_add;
1813             else if (state == prop_atoms.net_wm_state_maximized_horz)
1814                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
1815                     prop_atoms.net_wm_state_add;
1816             else if (state == prop_atoms.net_wm_state_shaded)
1817                 action = self->shaded ? prop_atoms.net_wm_state_remove :
1818                     prop_atoms.net_wm_state_add;
1819             else if (state == prop_atoms.net_wm_state_skip_taskbar)
1820                 action = self->skip_taskbar ?
1821                     prop_atoms.net_wm_state_remove :
1822                     prop_atoms.net_wm_state_add;
1823             else if (state == prop_atoms.net_wm_state_skip_pager)
1824                 action = self->skip_pager ?
1825                     prop_atoms.net_wm_state_remove :
1826                     prop_atoms.net_wm_state_add;
1827             else if (state == prop_atoms.net_wm_state_fullscreen)
1828                 action = self->fullscreen ?
1829                     prop_atoms.net_wm_state_remove :
1830                     prop_atoms.net_wm_state_add;
1831             else if (state == prop_atoms.net_wm_state_above)
1832                 action = self->above ? prop_atoms.net_wm_state_remove :
1833                     prop_atoms.net_wm_state_add;
1834             else if (state == prop_atoms.net_wm_state_below)
1835                 action = self->below ? prop_atoms.net_wm_state_remove :
1836                     prop_atoms.net_wm_state_add;
1837         }
1838     
1839         if (action == prop_atoms.net_wm_state_add) {
1840             if (state == prop_atoms.net_wm_state_modal) {
1841                 /* XXX raise here or something? */
1842                 self->modal = TRUE;
1843             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1844                 max_vert = TRUE;
1845             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1846                 max_horz = TRUE;
1847             } else if (state == prop_atoms.net_wm_state_shaded) {
1848                 shaded = TRUE;
1849             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1850                 self->skip_taskbar = TRUE;
1851             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1852                 self->skip_pager = TRUE;
1853             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1854                 fullscreen = TRUE;
1855             } else if (state == prop_atoms.net_wm_state_above) {
1856                 self->above = TRUE;
1857             } else if (state == prop_atoms.net_wm_state_below) {
1858                 self->below = TRUE;
1859             }
1860
1861         } else { /* action == prop_atoms.net_wm_state_remove */
1862             if (state == prop_atoms.net_wm_state_modal) {
1863                 self->modal = FALSE;
1864             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1865                 max_vert = FALSE;
1866             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1867                 max_horz = FALSE;
1868             } else if (state == prop_atoms.net_wm_state_shaded) {
1869                 shaded = FALSE;
1870             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1871                 self->skip_taskbar = FALSE;
1872             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1873                 self->skip_pager = FALSE;
1874             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1875                 fullscreen = FALSE;
1876             } else if (state == prop_atoms.net_wm_state_above) {
1877                 self->above = FALSE;
1878             } else if (state == prop_atoms.net_wm_state_below) {
1879                 self->below = FALSE;
1880             }
1881         }
1882     }
1883     if (max_horz != self->max_horz || max_vert != self->max_vert) {
1884         if (max_horz != self->max_horz && max_vert != self->max_vert) {
1885             /* toggling both */
1886             if (max_horz == max_vert) { /* both going the same way */
1887                 client_maximize(self, max_horz, 0, TRUE);
1888             } else {
1889                 client_maximize(self, max_horz, 1, TRUE);
1890                 client_maximize(self, max_vert, 2, TRUE);
1891             }
1892         } else {
1893             /* toggling one */
1894             if (max_horz != self->max_horz)
1895                 client_maximize(self, max_horz, 1, TRUE);
1896             else
1897                 client_maximize(self, max_vert, 2, TRUE);
1898         }
1899     }
1900     /* change fullscreen state before shading, as it will affect if the window
1901        can shade or not */
1902     if (fullscreen != self->fullscreen)
1903         client_fullscreen(self, fullscreen, TRUE);
1904     if (shaded != self->shaded)
1905         client_shade(self, shaded);
1906     client_calc_layer(self);
1907     client_change_state(self); /* change the hint to relect these changes */
1908 }
1909
1910 gboolean client_focus(Client *self)
1911 {
1912     XEvent ev;
1913     Client *child;
1914      
1915     /* if we have a modal child, then focus it, not us */
1916     child = client_find_modal_child(self);
1917     if (child)
1918         return client_focus(child);
1919
1920     /* won't try focus if the client doesn't want it, or if the window isn't
1921        visible on the screen */
1922     if (!(self->frame->visible &&
1923           (self->can_focus || self->focus_notify)))
1924         return FALSE;
1925
1926     /* do a check to see if the window has already been unmapped or destroyed
1927        do this intelligently while watching out for unmaps we've generated
1928        (ignore_unmaps > 0) */
1929     if (XCheckTypedWindowEvent(ob_display, self->window,
1930                                DestroyNotify, &ev)) {
1931         XPutBackEvent(ob_display, &ev);
1932         return FALSE;
1933     }
1934     while (XCheckTypedWindowEvent(ob_display, self->window,
1935                                   UnmapNotify, &ev)) {
1936         if (self->ignore_unmaps) {
1937             self->ignore_unmaps--;
1938         } else {
1939             XPutBackEvent(ob_display, &ev);
1940             return FALSE;
1941         }
1942     }
1943
1944     if (self->can_focus)
1945         /* RevertToNone is used so that windows dont get focused inadvertantly
1946            by having the pointer in them, and then FocusIn events go missing */
1947         XSetInputFocus(ob_display, self->window, RevertToNone,
1948                        event_lasttime);
1949
1950     if (self->focus_notify) {
1951         XEvent ce;
1952         ce.xclient.type = ClientMessage;
1953         ce.xclient.message_type = prop_atoms.wm_protocols;
1954         ce.xclient.display = ob_display;
1955         ce.xclient.window = self->window;
1956         ce.xclient.format = 32;
1957         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
1958         ce.xclient.data.l[1] = event_lasttime;
1959         ce.xclient.data.l[2] = 0l;
1960         ce.xclient.data.l[3] = 0l;
1961         ce.xclient.data.l[4] = 0l;
1962         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1963     }
1964
1965     g_message("focusing %lx", self->window);
1966
1967     /* Cause the FocusIn to come back to us. Important for desktop switches,
1968        since otherwise we'll have no FocusIn on the queue and send it off to
1969        the focus_backup. */
1970     XSync(ob_display, FALSE);
1971     return TRUE;
1972 }
1973
1974 void client_unfocus(Client *self)
1975 {
1976     g_assert(focus_client == self);
1977     focus_fallback(FALSE);
1978 }
1979
1980 gboolean client_focused(Client *self)
1981 {
1982     return self == focus_client;
1983 }
1984
1985 Icon *client_icon(Client *self, int w, int h)
1986 {
1987     int i;
1988     /* si is the smallest image >= req */
1989     /* li is the largest image < req */
1990     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
1991
1992     if (!self->nicons) return NULL;
1993
1994     for (i = 0; i < self->nicons; ++i) {
1995         size = self->icons[i].width * self->icons[i].height;
1996         if (size < smallest && size >= (unsigned)(w * h)) {
1997             smallest = size;
1998             si = i;
1999         }
2000         if (size > largest && size <= (unsigned)(w * h)) {
2001             largest = size;
2002             li = i;
2003         }
2004     }
2005     if (largest == 0) /* didnt find one smaller than the requested size */
2006         return &self->icons[si];
2007     return &self->icons[li];
2008 }