read in the stacking order on startup, and use it to restore windows back to the...
[mikachu/openbox.git] / openbox / client.c
1 #include "client.h"
2 #include "screen.h"
3 #include "prop.h"
4 #include "extensions.h"
5 #include "frame.h"
6 #include "engine.h"
7 #include "event.h"
8 #include "grab.h"
9 #include "focus.h"
10 #include "stacking.h"
11 #include "dispatch.h"
12
13 #include <glib.h>
14 #include <X11/Xutil.h>
15
16 /*! The event mask to grab on client windows */
17 #define CLIENT_EVENTMASK (PropertyChangeMask | FocusChangeMask | \
18                           StructureNotifyMask)
19
20 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
21                                 ButtonMotionMask)
22
23 GSList     *client_list      = NULL;
24 GHashTable *client_map       = NULL;
25
26 static Window *client_startup_stack_order = NULL;
27 static gulong  client_startup_stack_size = 0;
28
29 static void client_get_all(Client *self);
30 static void client_toggle_border(Client *self, gboolean show);
31 static void client_get_area(Client *self);
32 static void client_get_desktop(Client *self);
33 static void client_get_state(Client *self);
34 static void client_get_shaped(Client *self);
35 static void client_get_mwm_hints(Client *self);
36 static void client_get_gravity(Client *self);
37 static void client_showhide(Client *self);
38 static void client_change_allowed_actions(Client *self);
39 static void client_change_state(Client *self);
40 static Client *search_focus_tree(Client *node, Client *skip);
41 static void client_apply_startup_state(Client *self);
42 static Client *search_modal_tree(Client *node, Client *skip);
43
44 static guint map_hash(Window *w) { return *w; }
45 static gboolean map_key_comp(Window *w1, Window *w2) { return *w1 == *w2; }
46
47 void client_startup()
48 {
49     client_map = g_hash_table_new((GHashFunc)map_hash,
50                                   (GEqualFunc)map_key_comp);
51
52     /* save the stacking order on startup! */
53     if (!PROP_GET32U(ob_root, net_client_list_stacking, window,
54                      client_startup_stack_order, client_startup_stack_size))
55         g_message("failed");
56     g_message("%ld", client_startup_stack_size);
57
58     client_set_list();
59 }
60
61 void client_shutdown()
62 {
63     g_hash_table_destroy(client_map);
64 }
65
66 void client_set_list()
67 {
68     Window *windows, *win_it;
69     GSList *it;
70     guint size = g_slist_length(client_list);
71
72     /* create an array of the window ids */
73     if (size > 0) {
74         windows = g_new(Window, size);
75         win_it = windows;
76         for (it = client_list; it != NULL; it = it->next, ++win_it)
77             *win_it = ((Client*)it->data)->window;
78     } else
79         windows = NULL;
80
81     PROP_SET32A(ob_root, net_client_list, window, windows, size);
82
83     if (windows)
84         g_free(windows);
85
86     stacking_set_list();
87 }
88
89 void client_manage_all()
90 {
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     for (i = client_startup_stack_size; i > 0; --i) {
128         Client *c;
129
130         w = client_startup_stack_order[i-1];
131         c = g_hash_table_lookup(client_map, &w);
132         if (c) stacking_lower(c);
133     }
134 }
135
136 void client_manage(Window window)
137 {
138     Client *client;
139     XEvent e;
140     XWindowAttributes attrib;
141     XSetWindowAttributes attrib_set;
142 /*    XWMHints *wmhint; */
143     guint i;
144
145     grab_server(TRUE);
146
147     /* check if it has already been unmapped by the time we started mapping
148        the grab does a sync so we don't have to here */
149     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
150         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
151         XPutBackEvent(ob_display, &e);
152
153         grab_server(FALSE);
154         return; /* don't manage it */
155     }
156
157     /* make sure it isn't an override-redirect window */
158     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
159         attrib.override_redirect) {
160         grab_server(FALSE);
161         return; /* don't manage it */
162     }
163   
164 /*    /\* is the window a docking app *\/
165     if ((wmhint = XGetWMHints(ob_display, window))) {
166         if ((wmhint->flags & StateHint) &&
167             wmhint->initial_state == WithdrawnState) {
168             /\* XXX: make dock apps work! *\/
169             grab_server(FALSE);
170             XFree(wmhint);
171             return;
172         }
173         XFree(wmhint);
174     }
175 */
176
177     /* choose the events we want to receive on the CLIENT window */
178     attrib_set.event_mask = CLIENT_EVENTMASK;
179     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
180     XChangeWindowAttributes(ob_display, window,
181                             CWEventMask|CWDontPropagate, &attrib_set);
182
183
184     /* create the Client struct, and populate it from the hints on the
185        window */
186     client = g_new(Client, 1);
187     client->window = window;
188     client_get_all(client);
189
190     /* remove the client's border (and adjust re gravity) */
191     client_toggle_border(client, FALSE);
192      
193     /* specify that if we exit, the window should not be destroyed and should
194        be reparented back to root automatically */
195     XChangeSaveSet(ob_display, window, SetModeInsert);
196
197     /* create the decoration frame for the client window */
198     client->frame = engine_frame_new();
199
200     engine_frame_grab_client(client->frame, client);
201
202     client_apply_startup_state(client);
203
204     grab_server(FALSE);
205      
206     client_list = g_slist_append(client_list, client);
207     stacking_list = g_list_append(stacking_list, client);
208     g_assert(!g_hash_table_lookup(client_map, &client->window));
209     g_hash_table_insert(client_map, &client->window, client);
210
211     /* update the focus lists */
212     if (client->desktop == DESKTOP_ALL) {
213         for (i = 0; i < screen_num_desktops; ++i)
214             focus_order[i] = g_list_append(focus_order[i], client);
215     } else {
216         i = client->desktop;
217         focus_order[i] = g_list_append(focus_order[i], client);
218     }
219
220     stacking_raise(client);
221
222     screen_update_struts();
223
224     dispatch_client(Event_Client_New, client, 0, 0);
225
226     client_showhide(client);
227
228     dispatch_client(Event_Client_Mapped, client, 0, 0);
229
230     /* update the list hints */
231     client_set_list();
232
233     g_message("Managed window 0x%lx", window);
234 }
235
236 void client_unmanage_all()
237 {
238     while (client_list != NULL)
239         client_unmanage(client_list->data);
240 }
241
242 void client_unmanage(Client *client)
243 {
244     guint i;
245     int j;
246     GSList *it;
247
248     g_message("Unmanaging window: %lx", client->window);
249
250     dispatch_client(Event_Client_Destroy, client, 0, 0);
251     g_assert(client != NULL);
252
253     /* remove the window from our save set */
254     XChangeSaveSet(ob_display, client->window, SetModeDelete);
255
256     /* we dont want events no more */
257     XSelectInput(ob_display, client->window, NoEventMask);
258
259     engine_frame_hide(client->frame);
260
261     client_list = g_slist_remove(client_list, client);
262     stacking_list = g_list_remove(stacking_list, client);
263     g_hash_table_remove(client_map, &client->window);
264
265     /* update the focus lists */
266     if (client->desktop == DESKTOP_ALL) {
267         for (i = 0; i < screen_num_desktops; ++i)
268             focus_order[i] = g_list_remove(focus_order[i], client);
269     } else {
270         i = client->desktop;
271         focus_order[i] = g_list_remove(focus_order[i], client);
272     }
273
274     /* once the client is out of the list, update the struts to remove it's
275        influence */
276     screen_update_struts();
277
278     /* tell our parent that we're gone */
279     if (client->transient_for != NULL)
280         client->transient_for->transients =
281             g_slist_remove(client->transient_for->transients, client);
282
283     /* tell our transients that we're gone */
284     for (it = client->transients; it != NULL; it = it->next) {
285         ((Client*)it->data)->transient_for = NULL;
286         client_calc_layer(it->data);
287     }
288
289     /* dispatch the unmapped event */
290     dispatch_client(Event_Client_Unmapped, client, 0, 0);
291     g_assert(client != NULL);
292
293     /* unfocus the client (dispatchs the focus event) (we're out of the
294      transient lists already, so being modal doesn't matter) */
295     if (client_focused(client))
296         client_unfocus(client);
297
298     /* give the client its border back */
299     client_toggle_border(client, TRUE);
300
301     /* reparent the window out of the frame, and free the frame */
302     engine_frame_release_client(client->frame, client);
303     client->frame = NULL;
304      
305     if (ob_state != State_Exiting) {
306         /* these values should not be persisted across a window
307            unmapping/mapping */
308         prop_erase(client->window, prop_atoms.net_wm_desktop);
309         prop_erase(client->window, prop_atoms.net_wm_state);
310     } else {
311         /* if we're left in an iconic state, the client wont be mapped. this is
312            bad, since we will no longer be managing the window on restart */
313         if (client->iconic)
314             XMapWindow(ob_display, client->window);
315     }
316
317     /* free all data allocated in the client struct */
318     g_slist_free(client->transients);
319     for (j = 0; j < client->nicons; ++j)
320         g_free(client->icons[j].data);
321     if (client->nicons > 0)
322         g_free(client->icons);
323     g_free(client->title);
324     g_free(client->icon_title);
325     g_free(client->name);
326     g_free(client->class);
327     g_free(client->role);
328     g_free(client);
329      
330     /* update the list hints */
331     client_set_list();
332 }
333
334 static void client_toggle_border(Client *self, gboolean show)
335 {
336     /* adjust our idea of where the client is, based on its border. When the
337        border is removed, the client should now be considered to be in a
338        different position.
339        when re-adding the border to the client, the same operation needs to be
340        reversed. */
341     int oldx = self->area.x, oldy = self->area.y;
342     int x = oldx, y = oldy;
343     switch(self->gravity) {
344     default:
345     case NorthWestGravity:
346     case WestGravity:
347     case SouthWestGravity:
348         break;
349     case NorthEastGravity:
350     case EastGravity:
351     case SouthEastGravity:
352         if (show) x -= self->border_width * 2;
353         else      x += self->border_width * 2;
354         break;
355     case NorthGravity:
356     case SouthGravity:
357     case CenterGravity:
358     case ForgetGravity:
359     case StaticGravity:
360         if (show) x -= self->border_width;
361         else      x += self->border_width;
362         break;
363     }
364     switch(self->gravity) {
365     default:
366     case NorthWestGravity:
367     case NorthGravity:
368     case NorthEastGravity:
369         break;
370     case SouthWestGravity:
371     case SouthGravity:
372     case SouthEastGravity:
373         if (show) y -= self->border_width * 2;
374         else      y += self->border_width * 2;
375         break;
376     case WestGravity:
377     case EastGravity:
378     case CenterGravity:
379     case ForgetGravity:
380     case StaticGravity:
381         if (show) y -= self->border_width;
382         else      y += self->border_width;
383         break;
384     }
385     self->area.x = x;
386     self->area.y = y;
387
388     if (show) {
389         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
390
391         /* move the client so it is back it the right spot _with_ its
392            border! */
393         if (x != oldx || y != oldy)
394             XMoveWindow(ob_display, self->window, x, y);
395     } else
396         XSetWindowBorderWidth(ob_display, self->window, 0);
397 }
398
399
400 static void client_get_all(Client *self)
401 {
402     /* update EVERYTHING!! */
403
404     self->ignore_unmaps = 0;
405   
406     /* defaults */
407     self->frame = NULL;
408     self->title = self->icon_title = NULL;
409     self->name = self->class = self->role = NULL;
410     self->wmstate = NormalState;
411     self->transient = FALSE;
412     self->transients = NULL;
413     self->transient_for = NULL;
414     self->layer = -1;
415     self->urgent = FALSE;
416     self->positioned = FALSE;
417     self->disabled_decorations = 0;
418     self->group = None;
419     self->nicons = 0;
420
421     client_get_area(self);
422     client_get_desktop(self);
423     client_get_state(self);
424     client_get_shaped(self);
425
426     client_update_transient_for(self);
427     client_get_mwm_hints(self);
428     client_get_type(self);/* this can change the mwmhints for special cases */
429
430     client_update_protocols(self);
431
432     client_get_gravity(self); /* get the attribute gravity */
433     client_update_normal_hints(self); /* this may override the attribute
434                                          gravity */
435
436     /* got the type, the mwmhints, the protocols, and the normal hints
437        (min/max sizes), so we're ready to set up the decorations/functions */
438     client_setup_decor_and_functions(self);
439   
440     client_update_wmhints(self);
441     client_update_title(self);
442     client_update_icon_title(self);
443     client_update_class(self);
444     client_update_strut(self);
445     client_update_icons(self);
446     client_update_kwm_icon(self);
447
448     /* this makes sure that these windows appear on all desktops */
449     if (self->type == Type_Desktop)
450         self->desktop = DESKTOP_ALL;
451
452     /* set the desktop hint, to make sure that it always exists, and to
453        reflect any changes we've made here */
454     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
455
456     client_change_state(self);
457 }
458
459 static void client_get_area(Client *self)
460 {
461     XWindowAttributes wattrib;
462     Status ret;
463   
464     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
465     g_assert(ret != BadWindow);
466
467     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
468     self->border_width = wattrib.border_width;
469 }
470
471 static void client_get_desktop(Client *self)
472 {
473     unsigned int d;
474
475     if (PROP_GET32(self->window, net_wm_desktop, cardinal, d)) {
476         if (d >= screen_num_desktops && d != DESKTOP_ALL)
477             d = screen_num_desktops - 1;
478         self->desktop = d;
479     } else {
480         /* defaults to the current desktop */
481         self->desktop = screen_desktop;
482     }
483 }
484
485 static void client_get_state(Client *self)
486 {
487     gulong *state;
488     gulong num;
489   
490     self->modal = self->shaded = self->max_horz = self->max_vert =
491         self->fullscreen = self->above = self->below = self->iconic =
492         self->skip_taskbar = self->skip_pager = FALSE;
493
494     if (PROP_GET32U(self->window, net_wm_state, atom, state, num)) {
495         gulong i;
496         for (i = 0; i < num; ++i) {
497             if (state[i] == prop_atoms.net_wm_state_modal)
498                 self->modal = TRUE;
499             else if (state[i] == prop_atoms.net_wm_state_shaded)
500                 self->shaded = TRUE;
501             else if (state[i] == prop_atoms.net_wm_state_hidden)
502                 self->iconic = TRUE;
503             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
504                 self->skip_taskbar = TRUE;
505             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
506                 self->skip_pager = TRUE;
507             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
508                 self->fullscreen = TRUE;
509             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
510                 self->max_vert = TRUE;
511             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
512                 self->max_horz = TRUE;
513             else if (state[i] == prop_atoms.net_wm_state_above)
514                 self->above = TRUE;
515             else if (state[i] == prop_atoms.net_wm_state_below)
516                 self->below = TRUE;
517         }
518
519         g_free(state);
520     }
521 }
522
523 static void client_get_shaped(Client *self)
524 {
525     self->shaped = FALSE;
526 #ifdef   SHAPE
527     if (extensions_shape) {
528         int foo;
529         guint ufoo;
530         int s;
531
532         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
533
534         XShapeQueryExtents(ob_display, self->window, &s, &foo,
535                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
536                            &ufoo);
537         self->shaped = (s != 0);
538     }
539 #endif
540 }
541
542 void client_update_transient_for(Client *self)
543 {
544     Window t = None;
545     Client *c = NULL;
546
547     if (XGetTransientForHint(ob_display, self->window, &t) &&
548         t != self->window) { /* cant be transient to itself! */
549         self->transient = TRUE;
550         c = g_hash_table_lookup(client_map, &t);
551         g_assert(c != self);/* if this happens then we need to check for it*/
552
553         if (!c /*XXX: && _group*/) {
554             /* not transient to a client, see if it is transient for a
555                group */
556             if (/*t == _group->leader() || */
557                 t == None ||
558                 t == ob_root) {
559                 /* window is a transient for its group! */
560                 /* XXX: for now this is treated as non-transient.
561                    this needs to be fixed! */
562             }
563         }
564     } else
565         self->transient = FALSE;
566
567     /* if anything has changed... */
568     if (c != self->transient_for) {
569         if (self->transient_for)
570             /* remove from old parent */
571             self->transient_for->transients =
572                 g_slist_remove(self->transient_for->transients, self);
573         self->transient_for = c;
574         if (self->transient_for)
575             /* add to new parent */
576             self->transient_for->transients =
577                 g_slist_append(self->transient_for->transients, self);
578     }
579 }
580
581 static void client_get_mwm_hints(Client *self)
582 {
583     unsigned long num;
584     unsigned long *hints;
585
586     self->mwmhints.flags = 0; /* default to none */
587
588     if (PROP_GET32U(self->window, motif_wm_hints, motif_wm_hints, hints, num)) {
589         if (num >= MWM_ELEMENTS) {
590             self->mwmhints.flags = hints[0];
591             self->mwmhints.functions = hints[1];
592             self->mwmhints.decorations = hints[2];
593         }
594         g_free(hints);
595     }
596 }
597
598 void client_get_type(Client *self)
599 {
600     gulong *val, num, i;
601
602     self->type = -1;
603   
604     if (PROP_GET32U(self->window, net_wm_window_type, atom, val, num)) {
605         /* use the first value that we know about in the array */
606         for (i = 0; i < num; ++i) {
607             if (val[i] == prop_atoms.net_wm_window_type_desktop)
608                 self->type = Type_Desktop;
609             else if (val[i] == prop_atoms.net_wm_window_type_dock)
610                 self->type = Type_Dock;
611             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
612                 self->type = Type_Toolbar;
613             else if (val[i] == prop_atoms.net_wm_window_type_menu)
614                 self->type = Type_Menu;
615             else if (val[i] == prop_atoms.net_wm_window_type_utility)
616                 self->type = Type_Utility;
617             else if (val[i] == prop_atoms.net_wm_window_type_splash)
618                 self->type = Type_Splash;
619             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
620                 self->type = Type_Dialog;
621             else if (val[i] == prop_atoms.net_wm_window_type_normal)
622                 self->type = Type_Normal;
623             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
624                 /* prevent this window from getting any decor or
625                    functionality */
626                 self->mwmhints.flags &= (MwmFlag_Functions |
627                                          MwmFlag_Decorations);
628                 self->mwmhints.decorations = 0;
629                 self->mwmhints.functions = 0;
630             }
631             if (self->type != (WindowType) -1)
632                 break; /* grab the first legit type */
633         }
634         g_free(val);
635     }
636     
637     if (self->type == (WindowType) -1) {
638         /*the window type hint was not set, which means we either classify
639           ourself as a normal window or a dialog, depending on if we are a
640           transient. */
641         if (self->transient)
642             self->type = Type_Dialog;
643         else
644             self->type = Type_Normal;
645     }
646 }
647
648 void client_update_protocols(Client *self)
649 {
650     Atom *proto;
651     gulong num_return, i;
652
653     self->focus_notify = FALSE;
654     self->delete_window = FALSE;
655
656     if (PROP_GET32U(self->window, wm_protocols, atom, proto, num_return)) {
657         for (i = 0; i < num_return; ++i) {
658             if (proto[i] == prop_atoms.wm_delete_window) {
659                 /* this means we can request the window to close */
660                 self->delete_window = TRUE;
661             } else if (proto[i] == prop_atoms.wm_take_focus)
662                 /* if this protocol is requested, then the window will be
663                    notified whenever we want it to receive focus */
664                 self->focus_notify = TRUE;
665         }
666         g_free(proto);
667     }
668 }
669
670 static void client_get_gravity(Client *self)
671 {
672     XWindowAttributes wattrib;
673     Status ret;
674
675     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
676     g_assert(ret != BadWindow);
677     self->gravity = wattrib.win_gravity;
678 }
679
680 void client_update_normal_hints(Client *self)
681 {
682     XSizeHints size;
683     long ret;
684     int oldgravity = self->gravity;
685
686     /* defaults */
687     self->min_ratio = 0.0f;
688     self->max_ratio = 0.0f;
689     SIZE_SET(self->size_inc, 1, 1);
690     SIZE_SET(self->base_size, 0, 0);
691     SIZE_SET(self->min_size, 0, 0);
692     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
693
694     /* get the hints from the window */
695     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
696         self->positioned = (size.flags & (PPosition|USPosition));
697
698         if (size.flags & PWinGravity) {
699             self->gravity = size.win_gravity;
700       
701             /* if the client has a frame, i.e. has already been mapped and
702                is changing its gravity */
703             if (self->frame && self->gravity != oldgravity) {
704                 /* move our idea of the client's position based on its new
705                    gravity */
706                 self->area.x = self->frame->area.x;
707                 self->area.y = self->frame->area.y;
708                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
709             }
710         }
711
712         if (size.flags & PAspect) {
713             if (size.min_aspect.y)
714                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
715             if (size.max_aspect.y)
716                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
717         }
718
719         if (size.flags & PMinSize)
720             SIZE_SET(self->min_size, size.min_width, size.min_height);
721     
722         if (size.flags & PMaxSize)
723             SIZE_SET(self->max_size, size.max_width, size.max_height);
724     
725         if (size.flags & PBaseSize)
726             SIZE_SET(self->base_size, size.base_width, size.base_height);
727     
728         if (size.flags & PResizeInc)
729             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
730     }
731 }
732
733 void client_setup_decor_and_functions(Client *self)
734 {
735     /* start with everything (cept fullscreen) */
736     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
737         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize;
738     self->functions = Func_Resize | Func_Move | Func_Iconify | Func_Maximize |
739         Func_Shade;
740     if (self->delete_window) {
741         self->decorations |= Decor_Close;
742         self->functions |= Func_Close;
743     }
744
745     if (!(self->min_size.width < self->max_size.width ||
746           self->min_size.height < self->max_size.height)) {
747         self->decorations &= ~(Decor_Maximize | Decor_Handle);
748         self->functions &= ~(Func_Resize | Func_Maximize);
749     }
750
751     switch (self->type) {
752     case Type_Normal:
753         /* normal windows retain all of the possible decorations and
754            functionality, and are the only windows that you can fullscreen */
755         self->functions |= Func_Fullscreen;
756         break;
757
758     case Type_Dialog:
759         /* dialogs cannot be maximized */
760         self->decorations &= ~Decor_Maximize;
761         self->functions &= ~Func_Maximize;
762         break;
763
764     case Type_Menu:
765     case Type_Toolbar:
766     case Type_Utility:
767         /* these windows get less functionality */
768         self->decorations &= ~(Decor_Iconify | Decor_Handle);
769         self->functions &= ~(Func_Iconify | Func_Resize);
770         break;
771
772     case Type_Desktop:
773     case Type_Dock:
774     case Type_Splash:
775         /* none of these windows are manipulated by the window manager */
776         self->decorations = 0;
777         self->functions = 0;
778         break;
779     }
780
781     /* Mwm Hints are applied subtractively to what has already been chosen for
782        decor and functionality */
783     if (self->mwmhints.flags & MwmFlag_Decorations) {
784         if (! (self->mwmhints.decorations & MwmDecor_All)) {
785             if (! (self->mwmhints.decorations & MwmDecor_Border))
786                 self->decorations &= ~Decor_Border;
787             if (! (self->mwmhints.decorations & MwmDecor_Handle))
788                 self->decorations &= ~Decor_Handle;
789             if (! (self->mwmhints.decorations & MwmDecor_Title))
790                 self->decorations &= ~Decor_Titlebar;
791             if (! (self->mwmhints.decorations & MwmDecor_Iconify))
792                 self->decorations &= ~Decor_Iconify;
793             if (! (self->mwmhints.decorations & MwmDecor_Maximize))
794                 self->decorations &= ~Decor_Maximize;
795         }
796     }
797
798     if (self->mwmhints.flags & MwmFlag_Functions) {
799         if (! (self->mwmhints.functions & MwmFunc_All)) {
800             if (! (self->mwmhints.functions & MwmFunc_Resize))
801                 self->functions &= ~Func_Resize;
802             if (! (self->mwmhints.functions & MwmFunc_Move))
803                 self->functions &= ~Func_Move;
804             if (! (self->mwmhints.functions & MwmFunc_Iconify))
805                 self->functions &= ~Func_Iconify;
806             if (! (self->mwmhints.functions & MwmFunc_Maximize))
807                 self->functions &= ~Func_Maximize;
808             /* dont let mwm hints kill the close button
809                if (! (self->mwmhints.functions & MwmFunc_Close))
810                self->functions &= ~Func_Close; */
811         }
812     }
813
814     /* can't maximize without moving/resizing */
815     if (!((self->functions & Func_Move) && (self->functions & Func_Resize)))
816         self->functions &= ~(Func_Maximize | Func_Fullscreen);
817
818     /* finally, user specified disabled decorations are applied to subtract
819        decorations */
820     if (self->disabled_decorations & Decor_Titlebar)
821         self->decorations &= ~Decor_Titlebar;
822     if (self->disabled_decorations & Decor_Handle)
823         self->decorations &= ~Decor_Handle;
824     if (self->disabled_decorations & Decor_Border)
825         self->decorations &= ~Decor_Border;
826     if (self->disabled_decorations & Decor_Iconify)
827         self->decorations &= ~Decor_Iconify;
828     if (self->disabled_decorations & Decor_Maximize)
829         self->decorations &= ~Decor_Maximize;
830     if (self->disabled_decorations & Decor_AllDesktops)
831         self->decorations &= ~Decor_AllDesktops;
832     if (self->disabled_decorations & Decor_Close)
833         self->decorations &= ~Decor_Close;
834
835     /* if we don't have a titlebar, then we cannot shade! */
836     if (!(self->decorations & Decor_Titlebar))
837         self->functions &= ~Func_Shade;
838
839     client_change_allowed_actions(self);
840
841     if (self->frame) {
842         /* change the decors on the frame, and with more/less decorations,
843            we may also need to be repositioned */
844         engine_frame_adjust_area(self->frame, TRUE, TRUE);
845         /* with new decor, the window's maximized size may change */
846         client_remaximize(self);
847     }
848 }
849
850 static void client_change_allowed_actions(Client *self)
851 {
852     Atom actions[9];
853     int num = 0;
854
855     actions[num++] = prop_atoms.net_wm_action_change_desktop;
856
857     if (self->functions & Func_Shade)
858         actions[num++] = prop_atoms.net_wm_action_shade;
859     if (self->functions & Func_Close)
860         actions[num++] = prop_atoms.net_wm_action_close;
861     if (self->functions & Func_Move)
862         actions[num++] = prop_atoms.net_wm_action_move;
863     if (self->functions & Func_Iconify)
864         actions[num++] = prop_atoms.net_wm_action_minimize;
865     if (self->functions & Func_Resize)
866         actions[num++] = prop_atoms.net_wm_action_resize;
867     if (self->functions & Func_Fullscreen)
868         actions[num++] = prop_atoms.net_wm_action_fullscreen;
869     if (self->functions & Func_Maximize) {
870         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
871         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
872     }
873
874     PROP_SET32A(self->window, net_wm_allowed_actions, atom, actions, num);
875
876     /* make sure the window isn't breaking any rules now */
877
878     if (!(self->functions & Func_Shade) && self->shaded) {
879         if (self->frame) client_shade(self, FALSE);
880         else self->shaded = FALSE;
881     }
882     if (!(self->functions & Func_Iconify) && self->iconic) {
883         if (self->frame) client_iconify(self, FALSE, TRUE);
884         else self->iconic = FALSE;
885     }
886     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
887         if (self->frame) client_fullscreen(self, FALSE, TRUE);
888         else self->fullscreen = FALSE;
889     }
890     if (!(self->functions & Func_Maximize) && (self->max_horz ||
891                                                self->max_vert)) {
892         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
893         else self->max_vert = self->max_horz = FALSE;
894     }
895 }
896
897 void client_remaximize(Client *self)
898 {
899     int dir;
900     if (self->max_horz && self->max_vert)
901         dir = 0;
902     else if (self->max_horz)
903         dir = 1;
904     else if (self->max_vert)
905         dir = 2;
906     else
907         return; /* not maximized */
908     self->max_horz = self->max_vert = FALSE;
909     client_maximize(self, TRUE, dir, FALSE);
910 }
911
912 void client_update_wmhints(Client *self)
913 {
914     XWMHints *hints;
915     gboolean ur = FALSE;
916
917     /* assume a window takes input if it doesnt specify */
918     self->can_focus = TRUE;
919   
920     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
921         if (hints->flags & InputHint)
922             self->can_focus = hints->input;
923
924         /* only do this when starting! */
925         if (ob_state == State_Starting && (hints->flags & StateHint))
926             self->iconic = hints->initial_state == IconicState;
927
928         if (hints->flags & XUrgencyHint)
929             ur = TRUE;
930
931         if (hints->flags & WindowGroupHint) {
932             if (hints->window_group != self->group) {
933                 /* XXX: remove from the old group if there was one */
934                 self->group = hints->window_group;
935                 /* XXX: do stuff with the group */
936             }
937         } else /* no group! */
938             self->group = None;
939
940         if (hints->flags & IconPixmapHint) {
941             client_update_kwm_icon(self);
942             /* try get the kwm icon first, this is a fallback only */
943             if (self->pixmap_icon == None) {
944                 self->pixmap_icon = hints->icon_pixmap;
945                 if (hints->flags & IconMaskHint)
946                     self->pixmap_icon_mask = hints->icon_mask;
947                 else
948                     self->pixmap_icon_mask = None;
949
950                 if (self->frame)
951                     engine_frame_adjust_icon(self->frame);
952             }
953         }
954
955         XFree(hints);
956     }
957
958     if (ur != self->urgent) {
959         self->urgent = ur;
960         g_message("Urgent Hint for 0x%lx: %s", self->window,
961                   ur ? "ON" : "OFF");
962         /* fire the urgent callback if we're mapped, otherwise, wait until
963            after we're mapped */
964         if (self->frame)
965             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
966     }
967 }
968
969 void client_update_title(Client *self)
970 {
971     gchar *data = NULL;
972
973     g_free(self->title);
974      
975     /* try netwm */
976     if (!PROP_GETS(self->window, net_wm_name, utf8, data)) {
977         /* try old x stuff */
978         if (PROP_GETS(self->window, wm_name, string, data)) {
979             /* convert it to UTF-8 */
980             gsize r, w;
981             gchar *u;
982
983             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
984             if (u == NULL) {
985                 g_warning("Unable to convert string to UTF-8");
986             } else {
987                 g_free(data);
988                 data = u;
989             }
990         }
991         if (data == NULL)
992             data = g_strdup("Unnamed Window");
993
994         PROP_SETS(self->window, net_wm_visible_name, utf8, data);
995     }
996
997     self->title = data;
998
999     if (self->frame)
1000         engine_frame_adjust_title(self->frame);
1001 }
1002
1003 void client_update_icon_title(Client *self)
1004 {
1005     gchar *data = NULL;
1006
1007     g_free(self->icon_title);
1008      
1009     /* try netwm */
1010     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, data)) {
1011         /* try old x stuff */
1012         if (PROP_GETS(self->window, wm_icon_name, string, data)) {
1013             /* convert it to UTF-8 */
1014             gsize r, w;
1015             gchar *u;
1016
1017             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
1018             if (u == NULL) {
1019                 g_warning("Unable to convert string to UTF-8");
1020             } else {
1021                 g_free(data);
1022                 data = u;
1023             }
1024         }
1025         if (data == NULL)
1026             data = g_strdup("Unnamed Window");
1027
1028         PROP_SETS(self->window, net_wm_visible_icon_name, utf8, data);
1029     }
1030
1031     self->icon_title = data;
1032 }
1033
1034 void client_update_class(Client *self)
1035 {
1036     GPtrArray *data;
1037     gchar *s;
1038     guint i;
1039
1040     if (self->name) g_free(self->name);
1041     if (self->class) g_free(self->class);
1042     if (self->role) g_free(self->role);
1043
1044     self->name = self->class = self->role = NULL;
1045
1046     data = g_ptr_array_new();
1047      
1048     if (PROP_GETSA(self->window, wm_class, string, data)) {
1049         if (data->len > 0)
1050             self->name = g_strdup(g_ptr_array_index(data, 0));
1051         if (data->len > 1)
1052             self->class = g_strdup(g_ptr_array_index(data, 1));
1053     }
1054      
1055     for (i = 0; i < data->len; ++i)
1056         g_free(g_ptr_array_index(data, i));
1057     g_ptr_array_free(data, TRUE);
1058
1059     if (PROP_GETS(self->window, wm_window_role, string, s))
1060         self->role = g_strdup(s);
1061
1062     if (self->name == NULL) self->name = g_strdup("");
1063     if (self->class == NULL) self->class = g_strdup("");
1064     if (self->role == NULL) self->role = g_strdup("");
1065 }
1066
1067 void client_update_strut(Client *self)
1068 {
1069     gulong *data;
1070
1071     if (PROP_GET32A(self->window, net_wm_strut, cardinal, data, 4)) {
1072         STRUT_SET(self->strut, data[0], data[1], data[2], data[3]);
1073         g_free(data);
1074     } else
1075         STRUT_SET(self->strut, 0, 0, 0, 0);
1076
1077     /* updating here is pointless while we're being mapped cuz we're not in
1078        the client list yet */
1079     if (self->frame)
1080         screen_update_struts();
1081 }
1082
1083 void client_update_icons(Client *self)
1084 {
1085     unsigned long num;
1086     unsigned long *data;
1087     unsigned long w, h, i;
1088     int j;
1089
1090     for (j = 0; j < self->nicons; ++j)
1091         g_free(self->icons[j].data);
1092     if (self->nicons > 0)
1093         g_free(self->icons);
1094     self->nicons = 0;
1095
1096     if (PROP_GET32U(self->window, net_wm_icon, cardinal, data, num)) {
1097         /* figure out how many valid icons are in here */
1098         i = 0;
1099         while (num - i > 2) {
1100             w = data[i++];
1101             h = data[i++];
1102             i += w * h;
1103             if (i > num) break;
1104             ++self->nicons;
1105         }
1106
1107         self->icons = g_new(Icon, self->nicons);
1108     
1109         /* store the icons */
1110         i = 0;
1111         for (j = 0; j < self->nicons; ++j) {
1112             w = self->icons[j].w = data[i++];
1113             h = self->icons[j].h = data[i++];
1114             self->icons[j].data =
1115                 g_memdup(&data[i], w * h * sizeof(gulong));
1116             i += w * h;
1117             g_assert(i <= num);
1118         }
1119
1120         g_free(data);
1121     }
1122
1123     if (self->nicons <= 0) {
1124         self->nicons = 1;
1125         self->icons = g_new0(Icon, 1);
1126     }
1127
1128     if (self->frame)
1129         engine_frame_adjust_icon(self->frame);
1130 }
1131
1132 void client_update_kwm_icon(Client *self)
1133 {
1134     Pixmap *data;
1135
1136     if (PROP_GET32A(self->window, kwm_win_icon, kwm_win_icon, data, 2)) {
1137         self->pixmap_icon = data[0];
1138         self->pixmap_icon_mask = data[1];
1139         g_free(data);
1140     } else {
1141         self->pixmap_icon = self->pixmap_icon_mask = None;
1142     }
1143     if (self->frame)
1144         engine_frame_adjust_icon(self->frame);
1145 }
1146
1147 static void client_change_state(Client *self)
1148 {
1149     unsigned long state[2];
1150     Atom netstate[10];
1151     int num;
1152
1153     state[0] = self->wmstate;
1154     state[1] = None;
1155     PROP_SET32A(self->window, wm_state, wm_state, state, 2);
1156
1157     num = 0;
1158     if (self->modal)
1159         netstate[num++] = prop_atoms.net_wm_state_modal;
1160     if (self->shaded)
1161         netstate[num++] = prop_atoms.net_wm_state_shaded;
1162     if (self->iconic)
1163         netstate[num++] = prop_atoms.net_wm_state_hidden;
1164     if (self->skip_taskbar)
1165         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1166     if (self->skip_pager)
1167         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1168     if (self->fullscreen)
1169         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1170     if (self->max_vert)
1171         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1172     if (self->max_horz)
1173         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1174     if (self->above)
1175         netstate[num++] = prop_atoms.net_wm_state_above;
1176     if (self->below)
1177         netstate[num++] = prop_atoms.net_wm_state_below;
1178     PROP_SET32A(self->window, net_wm_state, atom, netstate, num);
1179
1180     client_calc_layer(self);
1181
1182     if (self->frame)
1183         engine_frame_adjust_state(self->frame);
1184 }
1185
1186 static Client *search_focus_tree(Client *node, Client *skip)
1187 {
1188     GSList *it;
1189     Client *ret;
1190
1191     for (it = node->transients; it != NULL; it = it->next) {
1192         Client *c = it->data;
1193         if (c == skip) continue; /* circular? */
1194         if ((ret = search_focus_tree(c, skip))) return ret;
1195         if (client_focused(c)) return c;
1196     }
1197     return NULL;
1198 }
1199
1200 void client_calc_layer(Client *self)
1201 {
1202     StackLayer l;
1203     gboolean fs;
1204     Client *c;
1205
1206     /* are we fullscreen, or do we have a fullscreen transient parent? */
1207     c = self;
1208     fs = FALSE;
1209     while (c) {
1210         if (c->fullscreen) {
1211             fs = TRUE;
1212             break;
1213         }
1214         c = c->transient_for;
1215     }
1216     if (!fs && self->fullscreen) {
1217         /* is one of our transients focused? */
1218         c = search_focus_tree(self, self);
1219         if (c != NULL) fs = TRUE;
1220     }
1221   
1222     if (self->iconic) l = Layer_Icon;
1223     else if (fs) l = Layer_Fullscreen;
1224     else if (self->type == Type_Desktop) l = Layer_Desktop;
1225     else if (self->type == Type_Dock) {
1226         if (!self->below) l = Layer_Top;
1227         else l = Layer_Normal;
1228     }
1229     else if (self->above) l = Layer_Above;
1230     else if (self->below) l = Layer_Below;
1231     else l = Layer_Normal;
1232      
1233     if (l != self->layer) {
1234         self->layer = l;
1235         if (self->frame)
1236             stacking_raise(self);
1237     }
1238 }
1239
1240 gboolean client_should_show(Client *self)
1241 {
1242     if (self->iconic) return FALSE;
1243     else if (!(self->desktop == screen_desktop ||
1244                self->desktop == DESKTOP_ALL)) return FALSE;
1245     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1246     
1247     return TRUE;
1248 }
1249
1250 static void client_showhide(Client *self)
1251 {
1252
1253     if (client_should_show(self))
1254         engine_frame_show(self->frame);
1255     else
1256         engine_frame_hide(self->frame);
1257 }
1258
1259 gboolean client_normal(Client *self) {
1260     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1261               self->type == Type_Splash);
1262 }
1263
1264 static void client_apply_startup_state(Client *self)
1265 {
1266     /* these are in a carefully crafted order.. */
1267
1268     if (self->iconic) {
1269         self->iconic = FALSE;
1270         client_iconify(self, TRUE, FALSE);
1271     }
1272     if (self->fullscreen) {
1273         self->fullscreen = FALSE;
1274         client_fullscreen(self, TRUE, FALSE);
1275     }
1276     if (self->shaded) {
1277         self->shaded = FALSE;
1278         client_shade(self, TRUE);
1279     }
1280     if (self->urgent)
1281         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1282   
1283     if (self->max_vert && self->max_horz) {
1284         self->max_vert = self->max_horz = FALSE;
1285         client_maximize(self, TRUE, 0, FALSE);
1286     } else if (self->max_vert) {
1287         self->max_vert = FALSE;
1288         client_maximize(self, TRUE, 2, FALSE);
1289     } else if (self->max_horz) {
1290         self->max_horz = FALSE;
1291         client_maximize(self, TRUE, 1, FALSE);
1292     }
1293
1294     /* nothing to do for the other states:
1295        skip_taskbar
1296        skip_pager
1297        modal
1298        above
1299        below
1300     */
1301 }
1302
1303 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1304                       gboolean user, gboolean final)
1305 {
1306     gboolean moved = FALSE, resized = FALSE;
1307
1308     /* set the size and position if fullscreen */
1309     if (self->fullscreen) {
1310         x = 0;
1311         y = 0;
1312         w = screen_physical_size.width;
1313         h = screen_physical_size.height;
1314     } else {
1315         /* set the size and position if maximized */
1316         if (self->max_horz) {
1317             x = screen_area(self->desktop)->x - self->frame->size.left;
1318             w = screen_area(self->desktop)->x +
1319                 screen_area(self->desktop)->width;
1320         }
1321         if (self->max_vert) {
1322             y = screen_area(self->desktop)->y;
1323             h = screen_area(self->desktop)->y +
1324                 screen_area(self->desktop)->height -
1325                 self->frame->size.top - self->frame->size.bottom;
1326         }
1327     }
1328
1329     /* these override the above states! if you cant move you can't move! */
1330     if (user) {
1331         if (!(self->functions & Func_Move)) {
1332             x = self->area.x;
1333             y = self->area.y;
1334         }
1335         if (!(self->functions & Func_Resize)) {
1336             w = self->area.width;
1337             h = self->area.height;
1338         }
1339     }
1340
1341     if (!(w == self->area.width && h == self->area.height)) {
1342         w -= self->base_size.width;
1343         h -= self->base_size.height;
1344
1345         if (user) {
1346             /* for interactive resizing. have to move half an increment in each
1347                direction. */
1348
1349             /* how far we are towards the next size inc */
1350             int mw = w % self->size_inc.width; 
1351             int mh = h % self->size_inc.height;
1352             /* amount to add */
1353             int aw = self->size_inc.width / 2;
1354             int ah = self->size_inc.height / 2;
1355             /* don't let us move into a new size increment */
1356             if (mw + aw >= self->size_inc.width)
1357                 aw = self->size_inc.width - mw - 1;
1358             if (mh + ah >= self->size_inc.height)
1359                 ah = self->size_inc.height - mh - 1;
1360             w += aw;
1361             h += ah;
1362     
1363             /* if this is a user-requested resize, then check against min/max
1364                sizes and aspect ratios */
1365
1366             /* smaller than min size or bigger than max size? */
1367             if (w > self->max_size.width) w = self->max_size.width;
1368             if (w < self->min_size.width) w = self->min_size.width;
1369             if (h > self->max_size.height) h = self->max_size.height;
1370             if (h < self->min_size.height) h = self->min_size.height;
1371
1372             /* adjust the height ot match the width for the aspect ratios */
1373             if (self->min_ratio)
1374                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1375             if (self->max_ratio)
1376                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1377         }
1378
1379         /* keep to the increments */
1380         w /= self->size_inc.width;
1381         h /= self->size_inc.height;
1382
1383         /* you cannot resize to nothing */
1384         if (w < 1) w = 1;
1385         if (h < 1) h = 1;
1386   
1387         /* store the logical size */
1388         SIZE_SET(self->logical_size, w, h);
1389
1390         w *= self->size_inc.width;
1391         h *= self->size_inc.height;
1392
1393         w += self->base_size.width;
1394         h += self->base_size.height;
1395     }
1396
1397     switch (anchor) {
1398     case Corner_TopLeft:
1399         break;
1400     case Corner_TopRight:
1401         x -= w - self->area.width;
1402         break;
1403     case Corner_BottomLeft:
1404         y -= h - self->area.height;
1405         break;
1406     case Corner_BottomRight:
1407         x -= w - self->area.width;
1408         y -= h - self->area.height;
1409         break;
1410     }
1411
1412     moved = x != self->area.x || y != self->area.y;
1413     resized = w != self->area.width || h != self->area.height;
1414
1415     RECT_SET(self->area, x, y, w, h);
1416
1417     if (resized)
1418         XResizeWindow(ob_display, self->window, w, h);
1419
1420     /* move/resize the frame to match the request */
1421     if (self->frame) {
1422         if (moved || resized)
1423             engine_frame_adjust_area(self->frame, moved, resized);
1424
1425         if (!user || final) {
1426             XEvent event;
1427             event.type = ConfigureNotify;
1428             event.xconfigure.display = ob_display;
1429             event.xconfigure.event = self->window;
1430             event.xconfigure.window = self->window;
1431     
1432             /* root window coords with border in mind */
1433             event.xconfigure.x = x - self->border_width +
1434                 self->frame->size.left;
1435             event.xconfigure.y = y - self->border_width +
1436                 self->frame->size.top;
1437     
1438             event.xconfigure.width = self->area.width;
1439             event.xconfigure.height = self->area.height;
1440             event.xconfigure.border_width = self->border_width;
1441             event.xconfigure.above = self->frame->plate;
1442             event.xconfigure.override_redirect = FALSE;
1443             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1444                        FALSE, StructureNotifyMask, &event);
1445         }
1446     }
1447 }
1448
1449 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1450 {
1451     int x, y, w, h;
1452
1453     if (!(self->functions & Func_Fullscreen) || /* can't */
1454         self->fullscreen == fs) return;         /* already done */
1455
1456     self->fullscreen = fs;
1457     client_change_state(self); /* change the state hints on the client */
1458
1459     if (fs) {
1460         /* save the functions and remove them */
1461         self->pre_fs_func = self->functions;
1462         self->functions &= (Func_Close | Func_Fullscreen |
1463                             Func_Iconify);
1464         /* save the decorations and remove them */
1465         self->pre_fs_decor = self->decorations;
1466         self->decorations = 0;
1467         if (savearea) {
1468             long dimensions[4];
1469             dimensions[0] = self->area.x;
1470             dimensions[1] = self->area.y;
1471             dimensions[2] = self->area.width;
1472             dimensions[3] = self->area.height;
1473   
1474             PROP_SET32A(self->window, openbox_premax, cardinal,
1475                         dimensions, 4);
1476         }
1477
1478         /* these are not actually used cuz client_configure will set them
1479            as appropriate when the window is fullscreened */
1480         x = y = w = h = 0;
1481     } else {
1482         long *dimensions;
1483
1484         self->functions = self->pre_fs_func;
1485         self->decorations = self->pre_fs_decor;
1486           
1487         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1488                         dimensions, 4)) {
1489             x = dimensions[0];
1490             y = dimensions[1];
1491             w = dimensions[2];
1492             h = dimensions[3];
1493             g_free(dimensions);
1494         } else {
1495             /* pick some fallbacks... */
1496             x = screen_area(self->desktop)->x +
1497                 screen_area(self->desktop)->width / 4;
1498             y = screen_area(self->desktop)->y +
1499                 screen_area(self->desktop)->height / 4;
1500             w = screen_area(self->desktop)->width / 2;
1501             h = screen_area(self->desktop)->height / 2;
1502         }
1503     }
1504
1505     client_change_allowed_actions(self); /* based on the new _functions */
1506
1507     /* when fullscreening, don't obey things like increments, fill the
1508        screen */
1509     client_configure(self, Corner_TopLeft, x, y, w, h, !fs, TRUE);
1510
1511     /* raise (back) into our stacking layer */
1512     stacking_raise(self);
1513
1514     /* try focus us when we go into fullscreen mode */
1515     client_focus(self);
1516 }
1517
1518 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1519 {
1520     if (self->iconic == iconic) return; /* nothing to do */
1521
1522     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1523               self->window);
1524
1525     self->iconic = iconic;
1526
1527     if (iconic) {
1528         self->wmstate = IconicState;
1529         self->ignore_unmaps++;
1530         /* we unmap the client itself so that we can get MapRequest events,
1531            and because the ICCCM tells us to! */
1532         XUnmapWindow(ob_display, self->window);
1533     } else {
1534         if (curdesk)
1535             client_set_desktop(self, screen_desktop);
1536         self->wmstate = self->shaded ? IconicState : NormalState;
1537         XMapWindow(ob_display, self->window);
1538     }
1539     client_change_state(self);
1540     client_showhide(self);
1541     screen_update_struts();
1542
1543     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1544                     self, 0, 0);
1545 }
1546
1547 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1548 {
1549     int x, y, w, h;
1550      
1551     g_assert(dir == 0 || dir == 1 || dir == 2);
1552     if (!(self->functions & Func_Maximize)) return; /* can't */
1553
1554     /* check if already done */
1555     if (max) {
1556         if (dir == 0 && self->max_horz && self->max_vert) return;
1557         if (dir == 1 && self->max_horz) return;
1558         if (dir == 2 && self->max_vert) return;
1559     } else {
1560         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1561         if (dir == 1 && !self->max_horz) return;
1562         if (dir == 2 && !self->max_vert) return;
1563     }
1564
1565     /* work with the frame's coords */
1566     x = self->frame->area.x;
1567     y = self->frame->area.y;
1568     w = self->area.width;
1569     h = self->area.height;
1570
1571     if (max) {
1572         if (savearea) {
1573             long dimensions[4];
1574             long *readdim;
1575
1576             dimensions[0] = x;
1577             dimensions[1] = y;
1578             dimensions[2] = w;
1579             dimensions[3] = h;
1580
1581             /* get the property off the window and use it for the dimensions
1582                we are already maxed on */
1583             if (PROP_GET32A(self->window, openbox_premax, cardinal,
1584                             readdim, 4)) {
1585                 if (self->max_horz) {
1586                     dimensions[0] = readdim[0];
1587                     dimensions[2] = readdim[2];
1588                 }
1589                 if (self->max_vert) {
1590                     dimensions[1] = readdim[1];
1591                     dimensions[3] = readdim[3];
1592                 }
1593                 g_free(readdim);
1594             }
1595
1596             PROP_SET32A(self->window, openbox_premax, cardinal,
1597                         dimensions, 4);
1598         }
1599
1600         /* pass the client's current position info. the client_configure
1601            will move/size stuff as appropriate for a maximized window */
1602         x = self->area.x;
1603         y = self->area.y;
1604         w = self->area.width;
1605         h = self->area.height;
1606     } else {
1607         long *dimensions;
1608
1609         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1610                         dimensions, 4)) {
1611             if (dir == 0 || dir == 1) { /* horz */
1612                 x = dimensions[0];
1613                 w = dimensions[2];
1614             }
1615             if (dir == 0 || dir == 2) { /* vert */
1616                 y = dimensions[1];
1617                 h = dimensions[3];
1618             }
1619             g_free(dimensions);
1620         } else {
1621             /* pick some fallbacks... */
1622             if (dir == 0 || dir == 1) { /* horz */
1623                 x = screen_area(self->desktop)->x +
1624                     screen_area(self->desktop)->width / 4;
1625                 w = screen_area(self->desktop)->width / 2;
1626             }
1627             if (dir == 0 || dir == 2) { /* vert */
1628                 y = screen_area(self->desktop)->y +
1629                     screen_area(self->desktop)->height / 4;
1630                 h = screen_area(self->desktop)->height / 2;
1631             }
1632         }
1633     }
1634
1635     if (dir == 0 || dir == 1) /* horz */
1636         self->max_horz = max;
1637     if (dir == 0 || dir == 2) /* vert */
1638         self->max_vert = max;
1639
1640     if (!self->max_horz && !self->max_vert)
1641         PROP_ERASE(self->window, openbox_premax);
1642
1643     client_change_state(self); /* change the state hints on the client */
1644
1645     /* figure out where the client should be going */
1646     frame_frame_gravity(self->frame, &x, &y);
1647     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1648 }
1649
1650 void client_shade(Client *self, gboolean shade)
1651 {
1652     if (!(self->functions & Func_Shade) || /* can't */
1653         self->shaded == shade) return;     /* already done */
1654
1655     /* when we're iconic, don't change the wmstate */
1656     if (!self->iconic)
1657         self->wmstate = shade ? IconicState : NormalState;
1658     self->shaded = shade;
1659     client_change_state(self);
1660     /* resize the frame to just the titlebar */
1661     engine_frame_adjust_area(self->frame, FALSE, FALSE);
1662 }
1663
1664 void client_close(Client *self)
1665 {
1666     XEvent ce;
1667
1668     if (!(self->functions & Func_Close)) return;
1669
1670     /*
1671       XXX: itd be cool to do timeouts and shit here for killing the client's
1672       process off
1673       like... if the window is around after 5 seconds, then the close button
1674       turns a nice red, and if this function is called again, the client is
1675       explicitly killed.
1676     */
1677
1678     ce.xclient.type = ClientMessage;
1679     ce.xclient.message_type =  prop_atoms.wm_protocols;
1680     ce.xclient.display = ob_display;
1681     ce.xclient.window = self->window;
1682     ce.xclient.format = 32;
1683     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
1684     ce.xclient.data.l[1] = event_lasttime;
1685     ce.xclient.data.l[2] = 0l;
1686     ce.xclient.data.l[3] = 0l;
1687     ce.xclient.data.l[4] = 0l;
1688     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1689 }
1690
1691 void client_kill(Client *self)
1692 {
1693     XKillClient(ob_display, self->window);
1694 }
1695
1696 void client_set_desktop(Client *self, guint target)
1697 {
1698     guint old, i;
1699
1700     if (target == self->desktop) return;
1701   
1702     g_message("Setting desktop %u\n", target);
1703
1704     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
1705
1706     old = self->desktop;
1707     self->desktop = target;
1708     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
1709     /* the frame can display the current desktop state */
1710     engine_frame_adjust_state(self->frame);
1711     /* 'move' the window to the new desktop */
1712     client_showhide(self);
1713     screen_update_struts();
1714
1715     /* update the focus lists */
1716     if (old == DESKTOP_ALL) {
1717         for (i = 0; i < screen_num_desktops; ++i)
1718             focus_order[i] = g_list_remove(focus_order[i], self);
1719         focus_order[target] = g_list_prepend(focus_order[target], self);
1720     } else {
1721         focus_order[old] = g_list_remove(focus_order[old], self);
1722         if (target == DESKTOP_ALL)
1723             for (i = 0; i < screen_num_desktops; ++i)
1724                 focus_order[i] = g_list_prepend(focus_order[i], self);
1725     }
1726
1727     dispatch_client(Event_Client_Desktop, self, target, old);
1728 }
1729
1730 static Client *search_modal_tree(Client *node, Client *skip)
1731 {
1732     GSList *it;
1733     Client *ret;
1734   
1735     for (it = node->transients; it != NULL; it = it->next) {
1736         Client *c = it->data;
1737         if (c == skip) continue; /* circular? */
1738         if ((ret = search_modal_tree(c, skip))) return ret;
1739         if (c->modal) return c;
1740     }
1741     return NULL;
1742 }
1743
1744 Client *client_find_modal_child(Client *self)
1745 {
1746     return search_modal_tree(self, self);
1747 }
1748
1749 gboolean client_validate(Client *self)
1750 {
1751     XEvent e; 
1752
1753     XSync(ob_display, FALSE); /* get all events on the server */
1754
1755     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
1756         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
1757         XPutBackEvent(ob_display, &e);
1758         return FALSE;
1759     }
1760
1761     return TRUE;
1762 }
1763
1764 void client_set_wm_state(Client *self, long state)
1765 {
1766     if (state == self->wmstate) return; /* no change */
1767   
1768     switch (state) {
1769     case IconicState:
1770         client_iconify(self, TRUE, TRUE);
1771         break;
1772     case NormalState:
1773         client_iconify(self, FALSE, TRUE);
1774         break;
1775     }
1776 }
1777
1778 void client_set_state(Client *self, Atom action, long data1, long data2)
1779 {
1780     gboolean shaded = self->shaded;
1781     gboolean fullscreen = self->fullscreen;
1782     gboolean max_horz = self->max_horz;
1783     gboolean max_vert = self->max_vert;
1784     int i;
1785
1786     if (!(action == prop_atoms.net_wm_state_add ||
1787           action == prop_atoms.net_wm_state_remove ||
1788           action == prop_atoms.net_wm_state_toggle))
1789         /* an invalid action was passed to the client message, ignore it */
1790         return; 
1791
1792     for (i = 0; i < 2; ++i) {
1793         Atom state = i == 0 ? data1 : data2;
1794     
1795         if (!state) continue;
1796
1797         /* if toggling, then pick whether we're adding or removing */
1798         if (action == prop_atoms.net_wm_state_toggle) {
1799             if (state == prop_atoms.net_wm_state_modal)
1800                 action = self->modal ? prop_atoms.net_wm_state_remove :
1801                     prop_atoms.net_wm_state_add;
1802             else if (state == prop_atoms.net_wm_state_maximized_vert)
1803                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
1804                     prop_atoms.net_wm_state_add;
1805             else if (state == prop_atoms.net_wm_state_maximized_horz)
1806                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
1807                     prop_atoms.net_wm_state_add;
1808             else if (state == prop_atoms.net_wm_state_shaded)
1809                 action = self->shaded ? prop_atoms.net_wm_state_remove :
1810                     prop_atoms.net_wm_state_add;
1811             else if (state == prop_atoms.net_wm_state_skip_taskbar)
1812                 action = self->skip_taskbar ?
1813                     prop_atoms.net_wm_state_remove :
1814                     prop_atoms.net_wm_state_add;
1815             else if (state == prop_atoms.net_wm_state_skip_pager)
1816                 action = self->skip_pager ?
1817                     prop_atoms.net_wm_state_remove :
1818                     prop_atoms.net_wm_state_add;
1819             else if (state == prop_atoms.net_wm_state_fullscreen)
1820                 action = self->fullscreen ?
1821                     prop_atoms.net_wm_state_remove :
1822                     prop_atoms.net_wm_state_add;
1823             else if (state == prop_atoms.net_wm_state_above)
1824                 action = self->above ? prop_atoms.net_wm_state_remove :
1825                     prop_atoms.net_wm_state_add;
1826             else if (state == prop_atoms.net_wm_state_below)
1827                 action = self->below ? prop_atoms.net_wm_state_remove :
1828                     prop_atoms.net_wm_state_add;
1829         }
1830     
1831         if (action == prop_atoms.net_wm_state_add) {
1832             if (state == prop_atoms.net_wm_state_modal) {
1833                 /* XXX raise here or something? */
1834                 self->modal = TRUE;
1835             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1836                 max_vert = TRUE;
1837             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1838                 max_horz = TRUE;
1839             } else if (state == prop_atoms.net_wm_state_shaded) {
1840                 shaded = TRUE;
1841             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1842                 self->skip_taskbar = TRUE;
1843             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1844                 self->skip_pager = TRUE;
1845             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1846                 fullscreen = TRUE;
1847             } else if (state == prop_atoms.net_wm_state_above) {
1848                 self->above = TRUE;
1849             } else if (state == prop_atoms.net_wm_state_below) {
1850                 self->below = TRUE;
1851             }
1852
1853         } else { /* action == prop_atoms.net_wm_state_remove */
1854             if (state == prop_atoms.net_wm_state_modal) {
1855                 self->modal = FALSE;
1856             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1857                 max_vert = FALSE;
1858             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1859                 max_horz = FALSE;
1860             } else if (state == prop_atoms.net_wm_state_shaded) {
1861                 shaded = FALSE;
1862             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1863                 self->skip_taskbar = FALSE;
1864             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1865                 self->skip_pager = FALSE;
1866             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1867                 fullscreen = FALSE;
1868             } else if (state == prop_atoms.net_wm_state_above) {
1869                 self->above = FALSE;
1870             } else if (state == prop_atoms.net_wm_state_below) {
1871                 self->below = FALSE;
1872             }
1873         }
1874     }
1875     if (max_horz != self->max_horz || max_vert != self->max_vert) {
1876         if (max_horz != self->max_horz && max_vert != self->max_vert) {
1877             /* toggling both */
1878             if (max_horz == max_vert) { /* both going the same way */
1879                 client_maximize(self, max_horz, 0, TRUE);
1880             } else {
1881                 client_maximize(self, max_horz, 1, TRUE);
1882                 client_maximize(self, max_vert, 2, TRUE);
1883             }
1884         } else {
1885             /* toggling one */
1886             if (max_horz != self->max_horz)
1887                 client_maximize(self, max_horz, 1, TRUE);
1888             else
1889                 client_maximize(self, max_vert, 2, TRUE);
1890         }
1891     }
1892     /* change fullscreen state before shading, as it will affect if the window
1893        can shade or not */
1894     if (fullscreen != self->fullscreen)
1895         client_fullscreen(self, fullscreen, TRUE);
1896     if (shaded != self->shaded)
1897         client_shade(self, shaded);
1898     client_calc_layer(self);
1899     client_change_state(self); /* change the hint to relect these changes */
1900 }
1901
1902 gboolean client_focus(Client *self)
1903 {
1904     XEvent ev;
1905     Client *child;
1906      
1907     /* if we have a modal child, then focus it, not us */
1908     child = client_find_modal_child(self);
1909     if (child)
1910         return client_focus(child);
1911
1912     /* won't try focus if the client doesn't want it, or if the window isn't
1913        visible on the screen */
1914     if (!(self->frame->visible &&
1915           (self->can_focus || self->focus_notify)))
1916         return FALSE;
1917
1918     /* do a check to see if the window has already been unmapped or destroyed
1919        do this intelligently while watching out for unmaps we've generated
1920        (ignore_unmaps > 0) */
1921     if (XCheckTypedWindowEvent(ob_display, self->window,
1922                                DestroyNotify, &ev)) {
1923         XPutBackEvent(ob_display, &ev);
1924         return FALSE;
1925     }
1926     while (XCheckTypedWindowEvent(ob_display, self->window,
1927                                   UnmapNotify, &ev)) {
1928         if (self->ignore_unmaps) {
1929             self->ignore_unmaps--;
1930         } else {
1931             XPutBackEvent(ob_display, &ev);
1932             return FALSE;
1933         }
1934     }
1935
1936     if (self->can_focus)
1937         XSetInputFocus(ob_display, self->window, RevertToNone,
1938                        CurrentTime);
1939
1940     if (self->focus_notify) {
1941         XEvent ce;
1942         ce.xclient.type = ClientMessage;
1943         ce.xclient.message_type = prop_atoms.wm_protocols;
1944         ce.xclient.display = ob_display;
1945         ce.xclient.window = self->window;
1946         ce.xclient.format = 32;
1947         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
1948         ce.xclient.data.l[1] = CurrentTime;
1949         ce.xclient.data.l[2] = 0l;
1950         ce.xclient.data.l[3] = 0l;
1951         ce.xclient.data.l[4] = 0l;
1952         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1953     }
1954
1955     /* XSync(ob_display, FALSE); XXX Why sync? */
1956     return TRUE;
1957 }
1958
1959 void client_unfocus(Client *self)
1960 {
1961     g_assert(focus_client == self);
1962     client_set_focused(self, FALSE);
1963 }
1964
1965 gboolean client_focused(Client *self)
1966 {
1967     return self == focus_client;
1968 }
1969
1970 void client_set_focused(Client *self, gboolean focused)
1971 {
1972     if (focused) {
1973         if (focus_client != self)
1974             focus_set_client(self);
1975     } else {
1976         if (focus_client == self)
1977             focus_set_client(NULL);
1978     }
1979
1980     /* focus state can affect the stacking layer */
1981     client_calc_layer(self);
1982
1983     engine_frame_adjust_focus(self->frame);
1984 }