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[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         if (c) stacking_lower(c);
136     }
137     g_free(client_startup_stack_order);
138     client_startup_stack_order = NULL;
139     client_startup_stack_size = 0;
140
141     if (!config_get("focusNew", Config_Bool, &focus_new))
142         g_assert_not_reached();
143     if (focus_new.bool)
144         focus_fallback(FALSE);
145 }
146
147 void client_manage(Window window)
148 {
149     Client *client;
150     XEvent e;
151     XWindowAttributes attrib;
152     XSetWindowAttributes attrib_set;
153 /*    XWMHints *wmhint; */
154     guint i;
155     ConfigValue focus_new;
156
157     grab_server(TRUE);
158
159     /* check if it has already been unmapped by the time we started mapping
160        the grab does a sync so we don't have to here */
161     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
162         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e)) {
163         XPutBackEvent(ob_display, &e);
164
165         grab_server(FALSE);
166         return; /* don't manage it */
167     }
168
169     /* make sure it isn't an override-redirect window */
170     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
171         attrib.override_redirect) {
172         grab_server(FALSE);
173         return; /* don't manage it */
174     }
175   
176 /*    /\* is the window a docking app *\/
177     if ((wmhint = XGetWMHints(ob_display, window))) {
178         if ((wmhint->flags & StateHint) &&
179             wmhint->initial_state == WithdrawnState) {
180             /\* XXX: make dock apps work! *\/
181             grab_server(FALSE);
182             XFree(wmhint);
183             return;
184         }
185         XFree(wmhint);
186     }
187 */
188
189     /* choose the events we want to receive on the CLIENT window */
190     attrib_set.event_mask = CLIENT_EVENTMASK;
191     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
192     XChangeWindowAttributes(ob_display, window,
193                             CWEventMask|CWDontPropagate, &attrib_set);
194
195
196     /* create the Client struct, and populate it from the hints on the
197        window */
198     client = g_new(Client, 1);
199     client->window = window;
200     client_get_all(client);
201
202     /* remove the client's border (and adjust re gravity) */
203     client_toggle_border(client, FALSE);
204      
205     /* specify that if we exit, the window should not be destroyed and should
206        be reparented back to root automatically */
207     XChangeSaveSet(ob_display, window, SetModeInsert);
208
209     /* create the decoration frame for the client window */
210     client->frame = engine_frame_new();
211
212     engine_frame_grab_client(client->frame, client);
213
214     client_apply_startup_state(client);
215
216     grab_server(FALSE);
217      
218     client_list = g_slist_append(client_list, client);
219     stacking_list = g_list_append(stacking_list, client);
220     g_assert(!g_hash_table_lookup(client_map, &client->window));
221     g_hash_table_insert(client_map, &client->window, client);
222
223     /* update the focus lists */
224     if (client->desktop == DESKTOP_ALL) {
225         for (i = 0; i < screen_num_desktops; ++i)
226             focus_order[i] = g_list_append(focus_order[i], client);
227     } else {
228         i = client->desktop;
229         focus_order[i] = g_list_append(focus_order[i], client);
230     }
231
232     stacking_raise(client);
233
234     screen_update_struts();
235
236     dispatch_client(Event_Client_New, client, 0, 0);
237
238     client_showhide(client);
239
240     dispatch_client(Event_Client_Mapped, client, 0, 0);
241
242     if (!config_get("focusNew", Config_Bool, &focus_new))
243         g_assert_not_reached();
244     if (ob_state != State_Starting && focus_new.bool)
245         client_focus(client);
246
247     /* update the list hints */
248     client_set_list();
249
250 /*    g_message("Managed window 0x%lx", window);*/
251 }
252
253 void client_unmanage_all()
254 {
255     while (client_list != NULL)
256         client_unmanage(client_list->data);
257 }
258
259 void client_unmanage(Client *client)
260 {
261     guint i;
262     int j;
263     GSList *it;
264
265 /*    g_message("Unmanaging window: %lx", client->window);*/
266
267     dispatch_client(Event_Client_Destroy, client, 0, 0);
268     g_assert(client != NULL);
269
270     /* remove the window from our save set */
271     XChangeSaveSet(ob_display, client->window, SetModeDelete);
272
273     /* we dont want events no more */
274     XSelectInput(ob_display, client->window, NoEventMask);
275
276     engine_frame_hide(client->frame);
277
278     client_list = g_slist_remove(client_list, client);
279     stacking_list = g_list_remove(stacking_list, client);
280     g_hash_table_remove(client_map, &client->window);
281
282     /* update the focus lists */
283     if (client->desktop == DESKTOP_ALL) {
284         for (i = 0; i < screen_num_desktops; ++i)
285             focus_order[i] = g_list_remove(focus_order[i], client);
286     } else {
287         i = client->desktop;
288         focus_order[i] = g_list_remove(focus_order[i], client);
289     }
290
291     /* once the client is out of the list, update the struts to remove it's
292        influence */
293     screen_update_struts();
294
295     /* tell our parent that we're gone */
296     if (client->transient_for != NULL)
297         client->transient_for->transients =
298             g_slist_remove(client->transient_for->transients, client);
299
300     /* tell our transients that we're gone */
301     for (it = client->transients; it != NULL; it = it->next) {
302         ((Client*)it->data)->transient_for = NULL;
303         client_calc_layer(it->data);
304     }
305
306     /* dispatch the unmapped event */
307     dispatch_client(Event_Client_Unmapped, client, 0, 0);
308     g_assert(client != NULL);
309
310     /* give the client its border back */
311     client_toggle_border(client, TRUE);
312
313     /* reparent the window out of the frame, and free the frame */
314     engine_frame_release_client(client->frame, client);
315     client->frame = NULL;
316      
317     if (ob_state != State_Exiting) {
318         /* these values should not be persisted across a window
319            unmapping/mapping */
320         prop_erase(client->window, prop_atoms.net_wm_desktop);
321         prop_erase(client->window, prop_atoms.net_wm_state);
322     } else {
323         /* if we're left in an iconic state, the client wont be mapped. this is
324            bad, since we will no longer be managing the window on restart */
325         if (client->iconic)
326             XMapWindow(ob_display, client->window);
327     }
328
329     /* free all data allocated in the client struct */
330     g_slist_free(client->transients);
331     for (j = 0; j < client->nicons; ++j)
332         g_free(client->icons[j].data);
333     if (client->nicons > 0)
334         g_free(client->icons);
335     g_free(client->title);
336     g_free(client->icon_title);
337     g_free(client->name);
338     g_free(client->class);
339     g_free(client->role);
340     g_free(client);
341      
342     /* update the list hints */
343     client_set_list();
344 }
345
346 static void client_toggle_border(Client *self, gboolean show)
347 {
348     /* adjust our idea of where the client is, based on its border. When the
349        border is removed, the client should now be considered to be in a
350        different position.
351        when re-adding the border to the client, the same operation needs to be
352        reversed. */
353     int oldx = self->area.x, oldy = self->area.y;
354     int x = oldx, y = oldy;
355     switch(self->gravity) {
356     default:
357     case NorthWestGravity:
358     case WestGravity:
359     case SouthWestGravity:
360         break;
361     case NorthEastGravity:
362     case EastGravity:
363     case SouthEastGravity:
364         if (show) x -= self->border_width * 2;
365         else      x += self->border_width * 2;
366         break;
367     case NorthGravity:
368     case SouthGravity:
369     case CenterGravity:
370     case ForgetGravity:
371     case StaticGravity:
372         if (show) x -= self->border_width;
373         else      x += self->border_width;
374         break;
375     }
376     switch(self->gravity) {
377     default:
378     case NorthWestGravity:
379     case NorthGravity:
380     case NorthEastGravity:
381         break;
382     case SouthWestGravity:
383     case SouthGravity:
384     case SouthEastGravity:
385         if (show) y -= self->border_width * 2;
386         else      y += self->border_width * 2;
387         break;
388     case WestGravity:
389     case EastGravity:
390     case CenterGravity:
391     case ForgetGravity:
392     case StaticGravity:
393         if (show) y -= self->border_width;
394         else      y += self->border_width;
395         break;
396     }
397     self->area.x = x;
398     self->area.y = y;
399
400     if (show) {
401         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
402
403         /* move the client so it is back it the right spot _with_ its
404            border! */
405         if (x != oldx || y != oldy)
406             XMoveWindow(ob_display, self->window, x, y);
407     } else
408         XSetWindowBorderWidth(ob_display, self->window, 0);
409 }
410
411
412 static void client_get_all(Client *self)
413 {
414     /* update EVERYTHING!! */
415
416     self->ignore_unmaps = 0;
417   
418     /* defaults */
419     self->frame = NULL;
420     self->title = self->icon_title = NULL;
421     self->name = self->class = self->role = NULL;
422     self->wmstate = NormalState;
423     self->transient = FALSE;
424     self->transients = NULL;
425     self->transient_for = NULL;
426     self->layer = -1;
427     self->urgent = FALSE;
428     self->positioned = FALSE;
429     self->disabled_decorations = 0;
430     self->group = None;
431     self->nicons = 0;
432
433     client_get_area(self);
434     client_get_desktop(self);
435     client_get_state(self);
436     client_get_shaped(self);
437
438     client_update_transient_for(self);
439     client_get_mwm_hints(self);
440     client_get_type(self);/* this can change the mwmhints for special cases */
441
442     client_update_protocols(self);
443
444     client_get_gravity(self); /* get the attribute gravity */
445     client_update_normal_hints(self); /* this may override the attribute
446                                          gravity */
447
448     /* got the type, the mwmhints, the protocols, and the normal hints
449        (min/max sizes), so we're ready to set up the decorations/functions */
450     client_setup_decor_and_functions(self);
451   
452     client_update_wmhints(self);
453     client_update_title(self);
454     client_update_icon_title(self);
455     client_update_class(self);
456     client_update_strut(self);
457     client_update_icons(self);
458     client_update_kwm_icon(self);
459
460     /* this makes sure that these windows appear on all desktops */
461     if (self->type == Type_Desktop)
462         self->desktop = DESKTOP_ALL;
463
464     /* set the desktop hint, to make sure that it always exists, and to
465        reflect any changes we've made here */
466     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
467
468     client_change_state(self);
469 }
470
471 static void client_get_area(Client *self)
472 {
473     XWindowAttributes wattrib;
474     Status ret;
475   
476     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
477     g_assert(ret != BadWindow);
478
479     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
480     self->border_width = wattrib.border_width;
481 }
482
483 static void client_get_desktop(Client *self)
484 {
485     unsigned int d;
486
487     if (PROP_GET32(self->window, net_wm_desktop, cardinal, d)) {
488         if (d >= screen_num_desktops && d != DESKTOP_ALL)
489             d = screen_num_desktops - 1;
490         self->desktop = d;
491     } else {
492         /* defaults to the current desktop */
493         self->desktop = screen_desktop;
494     }
495 }
496
497 static void client_get_state(Client *self)
498 {
499     gulong *state;
500     gulong num;
501   
502     self->modal = self->shaded = self->max_horz = self->max_vert =
503         self->fullscreen = self->above = self->below = self->iconic =
504         self->skip_taskbar = self->skip_pager = FALSE;
505
506     if (PROP_GET32U(self->window, net_wm_state, atom, state, num)) {
507         gulong i;
508         for (i = 0; i < num; ++i) {
509             if (state[i] == prop_atoms.net_wm_state_modal)
510                 self->modal = TRUE;
511             else if (state[i] == prop_atoms.net_wm_state_shaded)
512                 self->shaded = TRUE;
513             else if (state[i] == prop_atoms.net_wm_state_hidden)
514                 self->iconic = TRUE;
515             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
516                 self->skip_taskbar = TRUE;
517             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
518                 self->skip_pager = TRUE;
519             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
520                 self->fullscreen = TRUE;
521             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
522                 self->max_vert = TRUE;
523             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
524                 self->max_horz = TRUE;
525             else if (state[i] == prop_atoms.net_wm_state_above)
526                 self->above = TRUE;
527             else if (state[i] == prop_atoms.net_wm_state_below)
528                 self->below = TRUE;
529         }
530
531         g_free(state);
532     }
533 }
534
535 static void client_get_shaped(Client *self)
536 {
537     self->shaped = FALSE;
538 #ifdef   SHAPE
539     if (extensions_shape) {
540         int foo;
541         guint ufoo;
542         int s;
543
544         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
545
546         XShapeQueryExtents(ob_display, self->window, &s, &foo,
547                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
548                            &ufoo);
549         self->shaped = (s != 0);
550     }
551 #endif
552 }
553
554 void client_update_transient_for(Client *self)
555 {
556     Window t = None;
557     Client *c = NULL;
558
559     if (XGetTransientForHint(ob_display, self->window, &t) &&
560         t != self->window) { /* cant be transient to itself! */
561         self->transient = TRUE;
562         c = g_hash_table_lookup(client_map, &t);
563         g_assert(c != self);/* if this happens then we need to check for it*/
564
565         if (!c /*XXX: && _group*/) {
566             /* not transient to a client, see if it is transient for a
567                group */
568             if (/*t == _group->leader() || */
569                 t == None ||
570                 t == ob_root) {
571                 /* window is a transient for its group! */
572                 /* XXX: for now this is treated as non-transient.
573                    this needs to be fixed! */
574             }
575         }
576     } else
577         self->transient = FALSE;
578
579     /* if anything has changed... */
580     if (c != self->transient_for) {
581         if (self->transient_for)
582             /* remove from old parent */
583             self->transient_for->transients =
584                 g_slist_remove(self->transient_for->transients, self);
585         self->transient_for = c;
586         if (self->transient_for)
587             /* add to new parent */
588             self->transient_for->transients =
589                 g_slist_append(self->transient_for->transients, self);
590     }
591 }
592
593 static void client_get_mwm_hints(Client *self)
594 {
595     unsigned long num;
596     unsigned long *hints;
597
598     self->mwmhints.flags = 0; /* default to none */
599
600     if (PROP_GET32U(self->window, motif_wm_hints, motif_wm_hints, hints, num)) {
601         if (num >= MWM_ELEMENTS) {
602             self->mwmhints.flags = hints[0];
603             self->mwmhints.functions = hints[1];
604             self->mwmhints.decorations = hints[2];
605         }
606         g_free(hints);
607     }
608 }
609
610 void client_get_type(Client *self)
611 {
612     gulong *val, num, i;
613
614     self->type = -1;
615   
616     if (PROP_GET32U(self->window, net_wm_window_type, atom, val, num)) {
617         /* use the first value that we know about in the array */
618         for (i = 0; i < num; ++i) {
619             if (val[i] == prop_atoms.net_wm_window_type_desktop)
620                 self->type = Type_Desktop;
621             else if (val[i] == prop_atoms.net_wm_window_type_dock)
622                 self->type = Type_Dock;
623             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
624                 self->type = Type_Toolbar;
625             else if (val[i] == prop_atoms.net_wm_window_type_menu)
626                 self->type = Type_Menu;
627             else if (val[i] == prop_atoms.net_wm_window_type_utility)
628                 self->type = Type_Utility;
629             else if (val[i] == prop_atoms.net_wm_window_type_splash)
630                 self->type = Type_Splash;
631             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
632                 self->type = Type_Dialog;
633             else if (val[i] == prop_atoms.net_wm_window_type_normal)
634                 self->type = Type_Normal;
635             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
636                 /* prevent this window from getting any decor or
637                    functionality */
638                 self->mwmhints.flags &= (MwmFlag_Functions |
639                                          MwmFlag_Decorations);
640                 self->mwmhints.decorations = 0;
641                 self->mwmhints.functions = 0;
642             }
643             if (self->type != (WindowType) -1)
644                 break; /* grab the first legit type */
645         }
646         g_free(val);
647     }
648     
649     if (self->type == (WindowType) -1) {
650         /*the window type hint was not set, which means we either classify
651           ourself as a normal window or a dialog, depending on if we are a
652           transient. */
653         if (self->transient)
654             self->type = Type_Dialog;
655         else
656             self->type = Type_Normal;
657     }
658 }
659
660 void client_update_protocols(Client *self)
661 {
662     Atom *proto;
663     gulong num_return, i;
664
665     self->focus_notify = FALSE;
666     self->delete_window = FALSE;
667
668     if (PROP_GET32U(self->window, wm_protocols, atom, proto, num_return)) {
669         for (i = 0; i < num_return; ++i) {
670             if (proto[i] == prop_atoms.wm_delete_window) {
671                 /* this means we can request the window to close */
672                 self->delete_window = TRUE;
673             } else if (proto[i] == prop_atoms.wm_take_focus)
674                 /* if this protocol is requested, then the window will be
675                    notified whenever we want it to receive focus */
676                 self->focus_notify = TRUE;
677         }
678         g_free(proto);
679     }
680 }
681
682 static void client_get_gravity(Client *self)
683 {
684     XWindowAttributes wattrib;
685     Status ret;
686
687     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
688     g_assert(ret != BadWindow);
689     self->gravity = wattrib.win_gravity;
690 }
691
692 void client_update_normal_hints(Client *self)
693 {
694     XSizeHints size;
695     long ret;
696     int oldgravity = self->gravity;
697
698     /* defaults */
699     self->min_ratio = 0.0f;
700     self->max_ratio = 0.0f;
701     SIZE_SET(self->size_inc, 1, 1);
702     SIZE_SET(self->base_size, 0, 0);
703     SIZE_SET(self->min_size, 0, 0);
704     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
705
706     /* get the hints from the window */
707     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
708         self->positioned = !!(size.flags & (PPosition|USPosition));
709
710         if (size.flags & PWinGravity) {
711             self->gravity = size.win_gravity;
712       
713             /* if the client has a frame, i.e. has already been mapped and
714                is changing its gravity */
715             if (self->frame && self->gravity != oldgravity) {
716                 /* move our idea of the client's position based on its new
717                    gravity */
718                 self->area.x = self->frame->area.x;
719                 self->area.y = self->frame->area.y;
720                 frame_frame_gravity(self->frame, &self->area.x, &self->area.y);
721             }
722         }
723
724         if (size.flags & PAspect) {
725             if (size.min_aspect.y)
726                 self->min_ratio = (float)size.min_aspect.x / size.min_aspect.y;
727             if (size.max_aspect.y)
728                 self->max_ratio = (float)size.max_aspect.x / size.max_aspect.y;
729         }
730
731         if (size.flags & PMinSize)
732             SIZE_SET(self->min_size, size.min_width, size.min_height);
733     
734         if (size.flags & PMaxSize)
735             SIZE_SET(self->max_size, size.max_width, size.max_height);
736     
737         if (size.flags & PBaseSize)
738             SIZE_SET(self->base_size, size.base_width, size.base_height);
739     
740         if (size.flags & PResizeInc)
741             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
742     }
743 }
744
745 void client_setup_decor_and_functions(Client *self)
746 {
747     /* start with everything (cept fullscreen) */
748     self->decorations = Decor_Titlebar | Decor_Handle | Decor_Border |
749         Decor_Icon | Decor_AllDesktops | Decor_Iconify | Decor_Maximize |
750         Decor_Shade;
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_Shade)
846         self->decorations &= ~Decor_Shade;
847     if (self->disabled_decorations & Decor_Close)
848         self->decorations &= ~Decor_Close;
849
850     /* if we don't have a titlebar, then we cannot shade! */
851     if (!(self->decorations & Decor_Titlebar))
852         self->functions &= ~Func_Shade;
853
854     client_change_allowed_actions(self);
855
856     if (self->frame) {
857         /* change the decors on the frame, and with more/less decorations,
858            we may also need to be repositioned */
859         engine_frame_adjust_area(self->frame, TRUE, TRUE);
860         /* with new decor, the window's maximized size may change */
861         client_remaximize(self);
862     }
863 }
864
865 static void client_change_allowed_actions(Client *self)
866 {
867     Atom actions[9];
868     int num = 0;
869
870     actions[num++] = prop_atoms.net_wm_action_change_desktop;
871
872     if (self->functions & Func_Shade)
873         actions[num++] = prop_atoms.net_wm_action_shade;
874     if (self->functions & Func_Close)
875         actions[num++] = prop_atoms.net_wm_action_close;
876     if (self->functions & Func_Move)
877         actions[num++] = prop_atoms.net_wm_action_move;
878     if (self->functions & Func_Iconify)
879         actions[num++] = prop_atoms.net_wm_action_minimize;
880     if (self->functions & Func_Resize)
881         actions[num++] = prop_atoms.net_wm_action_resize;
882     if (self->functions & Func_Fullscreen)
883         actions[num++] = prop_atoms.net_wm_action_fullscreen;
884     if (self->functions & Func_Maximize) {
885         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
886         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
887     }
888
889     PROP_SET32A(self->window, net_wm_allowed_actions, atom, actions, num);
890
891     /* make sure the window isn't breaking any rules now */
892
893     if (!(self->functions & Func_Shade) && self->shaded) {
894         if (self->frame) client_shade(self, FALSE);
895         else self->shaded = FALSE;
896     }
897     if (!(self->functions & Func_Iconify) && self->iconic) {
898         g_message("UNSETTING ICONIC");
899         if (self->frame) client_iconify(self, FALSE, TRUE);
900         else self->iconic = FALSE;
901     }
902     if (!(self->functions & Func_Fullscreen) && self->fullscreen) {
903         if (self->frame) client_fullscreen(self, FALSE, TRUE);
904         else self->fullscreen = FALSE;
905     }
906     if (!(self->functions & Func_Maximize) && (self->max_horz ||
907                                                self->max_vert)) {
908         if (self->frame) client_maximize(self, FALSE, 0, TRUE);
909         else self->max_vert = self->max_horz = FALSE;
910     }
911 }
912
913 void client_remaximize(Client *self)
914 {
915     int dir;
916     if (self->max_horz && self->max_vert)
917         dir = 0;
918     else if (self->max_horz)
919         dir = 1;
920     else if (self->max_vert)
921         dir = 2;
922     else
923         return; /* not maximized */
924     self->max_horz = self->max_vert = FALSE;
925     client_maximize(self, TRUE, dir, FALSE);
926 }
927
928 void client_update_wmhints(Client *self)
929 {
930     XWMHints *hints;
931     gboolean ur = FALSE;
932
933     /* assume a window takes input if it doesnt specify */
934     self->can_focus = TRUE;
935   
936     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
937         if (hints->flags & InputHint)
938             self->can_focus = hints->input;
939
940         /* only do this when first managing the window *AND* when we aren't
941            starting up! */
942         if (ob_state != State_Starting && self->frame == NULL)
943             if (hints->flags & StateHint)
944                 self->iconic = hints->initial_state == IconicState;
945
946         if (hints->flags & XUrgencyHint)
947             ur = TRUE;
948
949         if (hints->flags & WindowGroupHint) {
950             if (hints->window_group != self->group) {
951                 /* XXX: remove from the old group if there was one */
952                 self->group = hints->window_group;
953                 /* XXX: do stuff with the group */
954             }
955         } else /* no group! */
956             self->group = None;
957
958         if (hints->flags & IconPixmapHint) {
959             client_update_kwm_icon(self);
960             /* try get the kwm icon first, this is a fallback only */
961             if (self->pixmap_icon == None) {
962                 self->pixmap_icon = hints->icon_pixmap;
963                 if (hints->flags & IconMaskHint)
964                     self->pixmap_icon_mask = hints->icon_mask;
965                 else
966                     self->pixmap_icon_mask = None;
967
968                 if (self->frame)
969                     engine_frame_adjust_icon(self->frame);
970             }
971         }
972
973         XFree(hints);
974     }
975
976     if (ur != self->urgent) {
977         self->urgent = ur;
978         g_message("Urgent Hint for 0x%lx: %s", self->window,
979                   ur ? "ON" : "OFF");
980         /* fire the urgent callback if we're mapped, otherwise, wait until
981            after we're mapped */
982         if (self->frame)
983             dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
984     }
985 }
986
987 void client_update_title(Client *self)
988 {
989     gchar *data = NULL;
990
991     g_free(self->title);
992      
993     /* try netwm */
994     if (!PROP_GETS(self->window, net_wm_name, utf8, data)) {
995         /* try old x stuff */
996         if (PROP_GETS(self->window, wm_name, string, data)) {
997             /* convert it to UTF-8 */
998             gsize r, w;
999             gchar *u;
1000
1001             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
1002             if (u == NULL) {
1003                 g_warning("Unable to convert string to UTF-8");
1004             } else {
1005                 g_free(data);
1006                 data = u;
1007             }
1008         }
1009         if (data == NULL)
1010             data = g_strdup("Unnamed Window");
1011
1012         PROP_SETS(self->window, net_wm_visible_name, utf8, data);
1013     }
1014
1015     self->title = data;
1016
1017     if (self->frame)
1018         engine_frame_adjust_title(self->frame);
1019 }
1020
1021 void client_update_icon_title(Client *self)
1022 {
1023     gchar *data = NULL;
1024
1025     g_free(self->icon_title);
1026      
1027     /* try netwm */
1028     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, data)) {
1029         /* try old x stuff */
1030         if (PROP_GETS(self->window, wm_icon_name, string, data)) {
1031             /* convert it to UTF-8 */
1032             gsize r, w;
1033             gchar *u;
1034
1035             u = g_locale_to_utf8(data, -1, &r, &w, NULL);
1036             if (u == NULL) {
1037                 g_warning("Unable to convert string to UTF-8");
1038             } else {
1039                 g_free(data);
1040                 data = u;
1041             }
1042         }
1043         if (data == NULL)
1044             data = g_strdup("Unnamed Window");
1045
1046         PROP_SETS(self->window, net_wm_visible_icon_name, utf8, data);
1047     }
1048
1049     self->icon_title = data;
1050 }
1051
1052 void client_update_class(Client *self)
1053 {
1054     GPtrArray *data;
1055     gchar *s;
1056     guint i;
1057
1058     if (self->name) g_free(self->name);
1059     if (self->class) g_free(self->class);
1060     if (self->role) g_free(self->role);
1061
1062     self->name = self->class = self->role = NULL;
1063
1064     data = g_ptr_array_new();
1065      
1066     if (PROP_GETSA(self->window, wm_class, string, data)) {
1067         if (data->len > 0)
1068             self->name = g_strdup(g_ptr_array_index(data, 0));
1069         if (data->len > 1)
1070             self->class = g_strdup(g_ptr_array_index(data, 1));
1071     }
1072      
1073     for (i = 0; i < data->len; ++i)
1074         g_free(g_ptr_array_index(data, i));
1075     g_ptr_array_free(data, TRUE);
1076
1077     if (PROP_GETS(self->window, wm_window_role, string, s))
1078         self->role = g_strdup(s);
1079
1080     if (self->name == NULL) self->name = g_strdup("");
1081     if (self->class == NULL) self->class = g_strdup("");
1082     if (self->role == NULL) self->role = g_strdup("");
1083 }
1084
1085 void client_update_strut(Client *self)
1086 {
1087     gulong *data;
1088
1089     if (PROP_GET32A(self->window, net_wm_strut, cardinal, data, 4)) {
1090         STRUT_SET(self->strut, data[0], data[2], data[1], data[3]);
1091         g_free(data);
1092     } else
1093         STRUT_SET(self->strut, 0, 0, 0, 0);
1094
1095     /* updating here is pointless while we're being mapped cuz we're not in
1096        the client list yet */
1097     if (self->frame)
1098         screen_update_struts();
1099 }
1100
1101 void client_update_icons(Client *self)
1102 {
1103     unsigned long num;
1104     unsigned long *data;
1105     unsigned long w, h, i;
1106     int j;
1107
1108     for (j = 0; j < self->nicons; ++j)
1109         g_free(self->icons[j].data);
1110     if (self->nicons > 0)
1111         g_free(self->icons);
1112     self->nicons = 0;
1113
1114     if (PROP_GET32U(self->window, net_wm_icon, cardinal, data, num)) {
1115         /* figure out how many valid icons are in here */
1116         i = 0;
1117         while (num - i > 2) {
1118             w = data[i++];
1119             h = data[i++];
1120             i += w * h;
1121             if (i > num) break;
1122             ++self->nicons;
1123         }
1124
1125         self->icons = g_new(Icon, self->nicons);
1126     
1127         /* store the icons */
1128         i = 0;
1129         for (j = 0; j < self->nicons; ++j) {
1130             w = self->icons[j].width = data[i++];
1131             h = self->icons[j].height = data[i++];
1132             self->icons[j].data =
1133                 g_memdup(&data[i], w * h * sizeof(gulong));
1134             i += w * h;
1135             g_assert(i <= num);
1136         }
1137
1138         g_free(data);
1139     }
1140
1141     if (self->frame)
1142         engine_frame_adjust_icon(self->frame);
1143 }
1144
1145 void client_update_kwm_icon(Client *self)
1146 {
1147     Pixmap *data;
1148
1149     if (PROP_GET32A(self->window, kwm_win_icon, kwm_win_icon, data, 2)) {
1150         self->pixmap_icon = data[0];
1151         self->pixmap_icon_mask = data[1];
1152         g_free(data);
1153     } else {
1154         self->pixmap_icon = self->pixmap_icon_mask = None;
1155     }
1156     if (self->frame)
1157         engine_frame_adjust_icon(self->frame);
1158 }
1159
1160 static void client_change_state(Client *self)
1161 {
1162     unsigned long state[2];
1163     Atom netstate[10];
1164     int num;
1165
1166     state[0] = self->wmstate;
1167     state[1] = None;
1168     PROP_SET32A(self->window, wm_state, wm_state, state, 2);
1169
1170     num = 0;
1171     if (self->modal)
1172         netstate[num++] = prop_atoms.net_wm_state_modal;
1173     if (self->shaded)
1174         netstate[num++] = prop_atoms.net_wm_state_shaded;
1175     if (self->iconic)
1176         netstate[num++] = prop_atoms.net_wm_state_hidden;
1177     if (self->skip_taskbar)
1178         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
1179     if (self->skip_pager)
1180         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
1181     if (self->fullscreen)
1182         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
1183     if (self->max_vert)
1184         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
1185     if (self->max_horz)
1186         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
1187     if (self->above)
1188         netstate[num++] = prop_atoms.net_wm_state_above;
1189     if (self->below)
1190         netstate[num++] = prop_atoms.net_wm_state_below;
1191     PROP_SET32A(self->window, net_wm_state, atom, netstate, num);
1192
1193     client_calc_layer(self);
1194
1195     if (self->frame)
1196         engine_frame_adjust_state(self->frame);
1197 }
1198
1199 static Client *search_focus_tree(Client *node, Client *skip)
1200 {
1201     GSList *it;
1202     Client *ret;
1203
1204     for (it = node->transients; it != NULL; it = it->next) {
1205         Client *c = it->data;
1206         if (c == skip) continue; /* circular? */
1207         if ((ret = search_focus_tree(c, skip))) return ret;
1208         if (client_focused(c)) return c;
1209     }
1210     return NULL;
1211 }
1212
1213 void client_calc_layer(Client *self)
1214 {
1215     StackLayer l;
1216     gboolean fs;
1217     Client *c;
1218
1219     /* are we fullscreen, or do we have a fullscreen transient parent? */
1220     c = self;
1221     fs = FALSE;
1222     while (c) {
1223         if (c->fullscreen) {
1224             fs = TRUE;
1225             break;
1226         }
1227         c = c->transient_for;
1228     }
1229     if (!fs && self->fullscreen) {
1230         /* is one of our transients focused? */
1231         c = search_focus_tree(self, self);
1232         if (c != NULL) fs = TRUE;
1233     }
1234   
1235     if (self->iconic) l = Layer_Icon;
1236     else if (fs) l = Layer_Fullscreen;
1237     else if (self->type == Type_Desktop) l = Layer_Desktop;
1238     else if (self->type == Type_Dock) {
1239         if (!self->below) l = Layer_Top;
1240         else l = Layer_Normal;
1241     }
1242     else if (self->above) l = Layer_Above;
1243     else if (self->below) l = Layer_Below;
1244     else l = Layer_Normal;
1245      
1246     if (l != self->layer) {
1247         self->layer = l;
1248         if (self->frame)
1249             stacking_raise(self);
1250     }
1251 }
1252
1253 gboolean client_should_show(Client *self)
1254 {
1255     if (self->iconic) return FALSE;
1256     else if (!(self->desktop == screen_desktop ||
1257                self->desktop == DESKTOP_ALL)) return FALSE;
1258     else if (client_normal(self) && screen_showing_desktop) return FALSE;
1259     
1260     return TRUE;
1261 }
1262
1263 static void client_showhide(Client *self)
1264 {
1265
1266     if (client_should_show(self))
1267         engine_frame_show(self->frame);
1268     else
1269         engine_frame_hide(self->frame);
1270 }
1271
1272 gboolean client_normal(Client *self) {
1273     return ! (self->type == Type_Desktop || self->type == Type_Dock ||
1274               self->type == Type_Splash);
1275 }
1276
1277 static void client_apply_startup_state(Client *self)
1278 {
1279     /* these are in a carefully crafted order.. */
1280
1281     if (self->iconic) {
1282         self->iconic = FALSE;
1283         client_iconify(self, TRUE, FALSE);
1284     }
1285     if (self->fullscreen) {
1286         self->fullscreen = FALSE;
1287         client_fullscreen(self, TRUE, FALSE);
1288     }
1289     if (self->shaded) {
1290         self->shaded = FALSE;
1291         client_shade(self, TRUE);
1292     }
1293     if (self->urgent)
1294         dispatch_client(Event_Client_Urgent, self, self->urgent, 0);
1295   
1296     if (self->max_vert && self->max_horz) {
1297         self->max_vert = self->max_horz = FALSE;
1298         client_maximize(self, TRUE, 0, FALSE);
1299     } else if (self->max_vert) {
1300         self->max_vert = FALSE;
1301         client_maximize(self, TRUE, 2, FALSE);
1302     } else if (self->max_horz) {
1303         self->max_horz = FALSE;
1304         client_maximize(self, TRUE, 1, FALSE);
1305     }
1306
1307     /* nothing to do for the other states:
1308        skip_taskbar
1309        skip_pager
1310        modal
1311        above
1312        below
1313     */
1314 }
1315
1316 void client_configure(Client *self, Corner anchor, int x, int y, int w, int h,
1317                       gboolean user, gboolean final)
1318 {
1319     gboolean moved = FALSE, resized = FALSE;
1320
1321     /* gets the frame's position */
1322     frame_client_gravity(self->frame, &x, &y);
1323
1324     /* these positions are frame positions, not client positions */
1325
1326     /* set the size and position if fullscreen */
1327     if (self->fullscreen) {
1328         x = 0;
1329         y = 0;
1330         w = screen_physical_size.width;
1331         h = screen_physical_size.height;
1332     } else {
1333         /* set the size and position if maximized */
1334         if (self->max_horz) {
1335             x = screen_area(self->desktop)->x - self->frame->size.left;
1336             w = screen_area(self->desktop)->width;
1337         }
1338         if (self->max_vert) {
1339             y = screen_area(self->desktop)->y;
1340             h = screen_area(self->desktop)->height -
1341                 self->frame->size.top - self->frame->size.bottom;
1342         }
1343     }
1344
1345     /* gets the client's position */
1346     frame_frame_gravity(self->frame, &x, &y);
1347
1348     /* these override the above states! if you cant move you can't move! */
1349     if (user) {
1350         if (!(self->functions & Func_Move)) {
1351             x = self->area.x;
1352             y = self->area.y;
1353         }
1354         if (!(self->functions & Func_Resize)) {
1355             w = self->area.width;
1356             h = self->area.height;
1357         }
1358     }
1359
1360     if (!(w == self->area.width && h == self->area.height)) {
1361         w -= self->base_size.width;
1362         h -= self->base_size.height;
1363
1364         if (user) {
1365             /* for interactive resizing. have to move half an increment in each
1366                direction. */
1367
1368             /* how far we are towards the next size inc */
1369             int mw = w % self->size_inc.width; 
1370             int mh = h % self->size_inc.height;
1371             /* amount to add */
1372             int aw = self->size_inc.width / 2;
1373             int ah = self->size_inc.height / 2;
1374             /* don't let us move into a new size increment */
1375             if (mw + aw >= self->size_inc.width)
1376                 aw = self->size_inc.width - mw - 1;
1377             if (mh + ah >= self->size_inc.height)
1378                 ah = self->size_inc.height - mh - 1;
1379             w += aw;
1380             h += ah;
1381     
1382             /* if this is a user-requested resize, then check against min/max
1383                sizes and aspect ratios */
1384
1385             /* smaller than min size or bigger than max size? */
1386             if (w > self->max_size.width) w = self->max_size.width;
1387             if (w < self->min_size.width) w = self->min_size.width;
1388             if (h > self->max_size.height) h = self->max_size.height;
1389             if (h < self->min_size.height) h = self->min_size.height;
1390
1391             /* adjust the height ot match the width for the aspect ratios */
1392             if (self->min_ratio)
1393                 if (h * self->min_ratio > w) h = (int)(w / self->min_ratio);
1394             if (self->max_ratio)
1395                 if (h * self->max_ratio < w) h = (int)(w / self->max_ratio);
1396         }
1397
1398         /* keep to the increments */
1399         w /= self->size_inc.width;
1400         h /= self->size_inc.height;
1401
1402         /* you cannot resize to nothing */
1403         if (w < 1) w = 1;
1404         if (h < 1) h = 1;
1405   
1406         /* store the logical size */
1407         SIZE_SET(self->logical_size, w, h);
1408
1409         w *= self->size_inc.width;
1410         h *= self->size_inc.height;
1411
1412         w += self->base_size.width;
1413         h += self->base_size.height;
1414     }
1415
1416     switch (anchor) {
1417     case Corner_TopLeft:
1418         break;
1419     case Corner_TopRight:
1420         x -= w - self->area.width;
1421         break;
1422     case Corner_BottomLeft:
1423         y -= h - self->area.height;
1424         break;
1425     case Corner_BottomRight:
1426         x -= w - self->area.width;
1427         y -= h - self->area.height;
1428         break;
1429     }
1430
1431     moved = x != self->area.x || y != self->area.y;
1432     resized = w != self->area.width || h != self->area.height;
1433
1434     RECT_SET(self->area, x, y, w, h);
1435
1436     if (resized)
1437         XResizeWindow(ob_display, self->window, w, h);
1438
1439     /* move/resize the frame to match the request */
1440     if (self->frame) {
1441         if (moved || resized)
1442             engine_frame_adjust_area(self->frame, moved, resized);
1443
1444         if (!user || final) {
1445             XEvent event;
1446             event.type = ConfigureNotify;
1447             event.xconfigure.display = ob_display;
1448             event.xconfigure.event = self->window;
1449             event.xconfigure.window = self->window;
1450     
1451             /* root window coords with border in mind */
1452             event.xconfigure.x = x - self->border_width +
1453                 self->frame->size.left;
1454             event.xconfigure.y = y - self->border_width +
1455                 self->frame->size.top;
1456     
1457             event.xconfigure.width = self->area.width;
1458             event.xconfigure.height = self->area.height;
1459             event.xconfigure.border_width = self->border_width;
1460             event.xconfigure.above = self->frame->plate;
1461             event.xconfigure.override_redirect = FALSE;
1462             XSendEvent(event.xconfigure.display, event.xconfigure.window,
1463                        FALSE, StructureNotifyMask, &event);
1464         }
1465     }
1466 }
1467
1468 void client_fullscreen(Client *self, gboolean fs, gboolean savearea)
1469 {
1470     int x, y, w, h;
1471
1472     if (!(self->functions & Func_Fullscreen) || /* can't */
1473         self->fullscreen == fs) return;         /* already done */
1474
1475     self->fullscreen = fs;
1476     client_change_state(self); /* change the state hints on the client */
1477
1478     if (fs) {
1479         /* save the functions and remove them */
1480         self->pre_fs_func = self->functions;
1481         self->functions &= (Func_Close | Func_Fullscreen |
1482                             Func_Iconify);
1483         /* save the decorations and remove them */
1484         self->pre_fs_decor = self->decorations;
1485         self->decorations = 0;
1486         if (savearea) {
1487             long dimensions[4];
1488             dimensions[0] = self->area.x;
1489             dimensions[1] = self->area.y;
1490             dimensions[2] = self->area.width;
1491             dimensions[3] = self->area.height;
1492   
1493             PROP_SET32A(self->window, openbox_premax, cardinal,
1494                         dimensions, 4);
1495         }
1496
1497         /* these are not actually used cuz client_configure will set them
1498            as appropriate when the window is fullscreened */
1499         x = y = w = h = 0;
1500     } else {
1501         long *dimensions;
1502
1503         self->functions = self->pre_fs_func;
1504         self->decorations = self->pre_fs_decor;
1505           
1506         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1507                         dimensions, 4)) {
1508             x = dimensions[0];
1509             y = dimensions[1];
1510             w = dimensions[2];
1511             h = dimensions[3];
1512             g_free(dimensions);
1513         } else {
1514             /* pick some fallbacks... */
1515             x = screen_area(self->desktop)->x +
1516                 screen_area(self->desktop)->width / 4;
1517             y = screen_area(self->desktop)->y +
1518                 screen_area(self->desktop)->height / 4;
1519             w = screen_area(self->desktop)->width / 2;
1520             h = screen_area(self->desktop)->height / 2;
1521         }
1522     }
1523
1524     client_change_allowed_actions(self); /* based on the new _functions */
1525
1526     /* when fullscreening, don't obey things like increments, fill the
1527        screen */
1528     client_configure(self, Corner_TopLeft, x, y, w, h, !fs, TRUE);
1529
1530     /* raise (back) into our stacking layer */
1531     stacking_raise(self);
1532
1533     /* try focus us when we go into fullscreen mode */
1534     client_focus(self);
1535 }
1536
1537 void client_iconify(Client *self, gboolean iconic, gboolean curdesk)
1538 {
1539     if (self->iconic == iconic) return; /* nothing to do */
1540
1541     g_message("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
1542               self->window);
1543
1544     self->iconic = iconic;
1545
1546     if (iconic) {
1547         self->wmstate = IconicState;
1548         self->ignore_unmaps++;
1549         /* we unmap the client itself so that we can get MapRequest events,
1550            and because the ICCCM tells us to! */
1551         XUnmapWindow(ob_display, self->window);
1552     } else {
1553         if (curdesk)
1554             client_set_desktop(self, screen_desktop, FALSE);
1555         self->wmstate = self->shaded ? IconicState : NormalState;
1556         XMapWindow(ob_display, self->window);
1557     }
1558     client_change_state(self);
1559     client_showhide(self);
1560     screen_update_struts();
1561
1562     dispatch_client(iconic ? Event_Client_Unmapped : Event_Client_Mapped,
1563                     self, 0, 0);
1564 }
1565
1566 void client_maximize(Client *self, gboolean max, int dir, gboolean savearea)
1567 {
1568     int x, y, w, h;
1569      
1570     g_assert(dir == 0 || dir == 1 || dir == 2);
1571     if (!(self->functions & Func_Maximize)) return; /* can't */
1572
1573     /* check if already done */
1574     if (max) {
1575         if (dir == 0 && self->max_horz && self->max_vert) return;
1576         if (dir == 1 && self->max_horz) return;
1577         if (dir == 2 && self->max_vert) return;
1578     } else {
1579         if (dir == 0 && !self->max_horz && !self->max_vert) return;
1580         if (dir == 1 && !self->max_horz) return;
1581         if (dir == 2 && !self->max_vert) return;
1582     }
1583
1584     /* work with the frame's coords */
1585     x = self->frame->area.x;
1586     y = self->frame->area.y;
1587     w = self->area.width;
1588     h = self->area.height;
1589
1590     if (max) {
1591         if (savearea) {
1592             long dimensions[4];
1593             long *readdim;
1594
1595             dimensions[0] = x;
1596             dimensions[1] = y;
1597             dimensions[2] = w;
1598             dimensions[3] = h;
1599
1600             /* get the property off the window and use it for the dimensions
1601                we are already maxed on */
1602             if (PROP_GET32A(self->window, openbox_premax, cardinal,
1603                             readdim, 4)) {
1604                 if (self->max_horz) {
1605                     dimensions[0] = readdim[0];
1606                     dimensions[2] = readdim[2];
1607                 }
1608                 if (self->max_vert) {
1609                     dimensions[1] = readdim[1];
1610                     dimensions[3] = readdim[3];
1611                 }
1612                 g_free(readdim);
1613             }
1614
1615             PROP_SET32A(self->window, openbox_premax, cardinal,
1616                         dimensions, 4);
1617         }
1618     } else {
1619         long *dimensions;
1620
1621         if (PROP_GET32A(self->window, openbox_premax, cardinal,
1622                         dimensions, 4)) {
1623             if (dir == 0 || dir == 1) { /* horz */
1624                 x = dimensions[0];
1625                 w = dimensions[2];
1626             }
1627             if (dir == 0 || dir == 2) { /* vert */
1628                 y = dimensions[1];
1629                 h = dimensions[3];
1630             }
1631             g_free(dimensions);
1632         } else {
1633             /* pick some fallbacks... */
1634             if (dir == 0 || dir == 1) { /* horz */
1635                 x = screen_area(self->desktop)->x +
1636                     screen_area(self->desktop)->width / 4;
1637                 w = screen_area(self->desktop)->width / 2;
1638             }
1639             if (dir == 0 || dir == 2) { /* vert */
1640                 y = screen_area(self->desktop)->y +
1641                     screen_area(self->desktop)->height / 4;
1642                 h = screen_area(self->desktop)->height / 2;
1643             }
1644         }
1645     }
1646
1647     if (dir == 0 || dir == 1) /* horz */
1648         self->max_horz = max;
1649     if (dir == 0 || dir == 2) /* vert */
1650         self->max_vert = max;
1651
1652     if (!self->max_horz && !self->max_vert)
1653         PROP_ERASE(self->window, openbox_premax);
1654
1655     client_change_state(self); /* change the state hints on the client */
1656
1657     /* figure out where the client should be going */
1658     frame_frame_gravity(self->frame, &x, &y);
1659     client_configure(self, Corner_TopLeft, x, y, w, h, TRUE, TRUE);
1660 }
1661
1662 void client_shade(Client *self, gboolean shade)
1663 {
1664     if ((!(self->functions & Func_Shade) && shade) || /* can't shade */
1665         self->shaded == shade) return;     /* already done */
1666
1667     /* when we're iconic, don't change the wmstate */
1668     if (!self->iconic)
1669         self->wmstate = shade ? IconicState : NormalState;
1670     self->shaded = shade;
1671     client_change_state(self);
1672     /* resize the frame to just the titlebar */
1673     engine_frame_adjust_area(self->frame, FALSE, FALSE);
1674 }
1675
1676 void client_close(Client *self)
1677 {
1678     XEvent ce;
1679
1680     if (!(self->functions & Func_Close)) return;
1681
1682     /*
1683       XXX: itd be cool to do timeouts and shit here for killing the client's
1684       process off
1685       like... if the window is around after 5 seconds, then the close button
1686       turns a nice red, and if this function is called again, the client is
1687       explicitly killed.
1688     */
1689
1690     ce.xclient.type = ClientMessage;
1691     ce.xclient.message_type =  prop_atoms.wm_protocols;
1692     ce.xclient.display = ob_display;
1693     ce.xclient.window = self->window;
1694     ce.xclient.format = 32;
1695     ce.xclient.data.l[0] = prop_atoms.wm_delete_window;
1696     ce.xclient.data.l[1] = event_lasttime;
1697     ce.xclient.data.l[2] = 0l;
1698     ce.xclient.data.l[3] = 0l;
1699     ce.xclient.data.l[4] = 0l;
1700     XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1701 }
1702
1703 void client_kill(Client *self)
1704 {
1705     XKillClient(ob_display, self->window);
1706 }
1707
1708 void client_set_desktop(Client *self, guint target, gboolean donthide)
1709 {
1710     guint old, i;
1711     ConfigValue focus_new;
1712
1713     if (target == self->desktop) return;
1714   
1715     g_message("Setting desktop %u", target);
1716
1717     g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
1718
1719     old = self->desktop;
1720     self->desktop = target;
1721     PROP_SET32(self->window, net_wm_desktop, cardinal, target);
1722     /* the frame can display the current desktop state */
1723     engine_frame_adjust_state(self->frame);
1724     /* 'move' the window to the new desktop */
1725     if (!donthide)
1726         client_showhide(self);
1727     /* raise if it was not already on the desktop */
1728     if (old != DESKTOP_ALL)
1729         stacking_raise(self);
1730     screen_update_struts();
1731
1732     /* update the focus lists */
1733     if (!config_get("focusNew", Config_Bool, &focus_new))
1734         g_assert_not_reached();
1735     if (old == DESKTOP_ALL) {
1736         for (i = 0; i < screen_num_desktops; ++i)
1737             focus_order[i] = g_list_remove(focus_order[i], self);
1738     } else
1739         focus_order[old] = g_list_remove(focus_order[old], self);
1740     if (target == DESKTOP_ALL) {
1741         for (i = 0; i < screen_num_desktops; ++i) {
1742             if (focus_new.bool)
1743                 focus_order[i] = g_list_prepend(focus_order[i], self);
1744             else
1745                 focus_order[i] = g_list_append(focus_order[i], self);
1746         }
1747     } else {
1748         if (focus_new.bool)
1749             focus_order[target] = g_list_prepend(focus_order[target], self);
1750         else
1751             focus_order[target] = g_list_append(focus_order[target], self);
1752     }
1753
1754     dispatch_client(Event_Client_Desktop, self, target, old);
1755 }
1756
1757 static Client *search_modal_tree(Client *node, Client *skip)
1758 {
1759     GSList *it;
1760     Client *ret;
1761   
1762     for (it = node->transients; it != NULL; it = it->next) {
1763         Client *c = it->data;
1764         if (c == skip) continue; /* circular? */
1765         if ((ret = search_modal_tree(c, skip))) return ret;
1766         if (c->modal) return c;
1767     }
1768     return NULL;
1769 }
1770
1771 Client *client_find_modal_child(Client *self)
1772 {
1773     return search_modal_tree(self, self);
1774 }
1775
1776 gboolean client_validate(Client *self)
1777 {
1778     XEvent e; 
1779
1780     XSync(ob_display, FALSE); /* get all events on the server */
1781
1782     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
1783         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
1784         XPutBackEvent(ob_display, &e);
1785         return FALSE;
1786     }
1787
1788     return TRUE;
1789 }
1790
1791 void client_set_wm_state(Client *self, long state)
1792 {
1793     if (state == self->wmstate) return; /* no change */
1794   
1795     switch (state) {
1796     case IconicState:
1797         client_iconify(self, TRUE, TRUE);
1798         break;
1799     case NormalState:
1800         client_iconify(self, FALSE, TRUE);
1801         break;
1802     }
1803 }
1804
1805 void client_set_state(Client *self, Atom action, long data1, long data2)
1806 {
1807     gboolean shaded = self->shaded;
1808     gboolean fullscreen = self->fullscreen;
1809     gboolean max_horz = self->max_horz;
1810     gboolean max_vert = self->max_vert;
1811     int i;
1812
1813     if (!(action == prop_atoms.net_wm_state_add ||
1814           action == prop_atoms.net_wm_state_remove ||
1815           action == prop_atoms.net_wm_state_toggle))
1816         /* an invalid action was passed to the client message, ignore it */
1817         return; 
1818
1819     for (i = 0; i < 2; ++i) {
1820         Atom state = i == 0 ? data1 : data2;
1821     
1822         if (!state) continue;
1823
1824         /* if toggling, then pick whether we're adding or removing */
1825         if (action == prop_atoms.net_wm_state_toggle) {
1826             if (state == prop_atoms.net_wm_state_modal)
1827                 action = self->modal ? prop_atoms.net_wm_state_remove :
1828                     prop_atoms.net_wm_state_add;
1829             else if (state == prop_atoms.net_wm_state_maximized_vert)
1830                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
1831                     prop_atoms.net_wm_state_add;
1832             else if (state == prop_atoms.net_wm_state_maximized_horz)
1833                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
1834                     prop_atoms.net_wm_state_add;
1835             else if (state == prop_atoms.net_wm_state_shaded)
1836                 action = self->shaded ? prop_atoms.net_wm_state_remove :
1837                     prop_atoms.net_wm_state_add;
1838             else if (state == prop_atoms.net_wm_state_skip_taskbar)
1839                 action = self->skip_taskbar ?
1840                     prop_atoms.net_wm_state_remove :
1841                     prop_atoms.net_wm_state_add;
1842             else if (state == prop_atoms.net_wm_state_skip_pager)
1843                 action = self->skip_pager ?
1844                     prop_atoms.net_wm_state_remove :
1845                     prop_atoms.net_wm_state_add;
1846             else if (state == prop_atoms.net_wm_state_fullscreen)
1847                 action = self->fullscreen ?
1848                     prop_atoms.net_wm_state_remove :
1849                     prop_atoms.net_wm_state_add;
1850             else if (state == prop_atoms.net_wm_state_above)
1851                 action = self->above ? prop_atoms.net_wm_state_remove :
1852                     prop_atoms.net_wm_state_add;
1853             else if (state == prop_atoms.net_wm_state_below)
1854                 action = self->below ? prop_atoms.net_wm_state_remove :
1855                     prop_atoms.net_wm_state_add;
1856         }
1857     
1858         if (action == prop_atoms.net_wm_state_add) {
1859             if (state == prop_atoms.net_wm_state_modal) {
1860                 /* XXX raise here or something? */
1861                 self->modal = TRUE;
1862             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1863                 max_vert = TRUE;
1864             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1865                 max_horz = TRUE;
1866             } else if (state == prop_atoms.net_wm_state_shaded) {
1867                 shaded = TRUE;
1868             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1869                 self->skip_taskbar = TRUE;
1870             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1871                 self->skip_pager = TRUE;
1872             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1873                 fullscreen = TRUE;
1874             } else if (state == prop_atoms.net_wm_state_above) {
1875                 self->above = TRUE;
1876             } else if (state == prop_atoms.net_wm_state_below) {
1877                 self->below = TRUE;
1878             }
1879
1880         } else { /* action == prop_atoms.net_wm_state_remove */
1881             if (state == prop_atoms.net_wm_state_modal) {
1882                 self->modal = FALSE;
1883             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
1884                 max_vert = FALSE;
1885             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
1886                 max_horz = FALSE;
1887             } else if (state == prop_atoms.net_wm_state_shaded) {
1888                 shaded = FALSE;
1889             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
1890                 self->skip_taskbar = FALSE;
1891             } else if (state == prop_atoms.net_wm_state_skip_pager) {
1892                 self->skip_pager = FALSE;
1893             } else if (state == prop_atoms.net_wm_state_fullscreen) {
1894                 fullscreen = FALSE;
1895             } else if (state == prop_atoms.net_wm_state_above) {
1896                 self->above = FALSE;
1897             } else if (state == prop_atoms.net_wm_state_below) {
1898                 self->below = FALSE;
1899             }
1900         }
1901     }
1902     if (max_horz != self->max_horz || max_vert != self->max_vert) {
1903         if (max_horz != self->max_horz && max_vert != self->max_vert) {
1904             /* toggling both */
1905             if (max_horz == max_vert) { /* both going the same way */
1906                 client_maximize(self, max_horz, 0, TRUE);
1907             } else {
1908                 client_maximize(self, max_horz, 1, TRUE);
1909                 client_maximize(self, max_vert, 2, TRUE);
1910             }
1911         } else {
1912             /* toggling one */
1913             if (max_horz != self->max_horz)
1914                 client_maximize(self, max_horz, 1, TRUE);
1915             else
1916                 client_maximize(self, max_vert, 2, TRUE);
1917         }
1918     }
1919     /* change fullscreen state before shading, as it will affect if the window
1920        can shade or not */
1921     if (fullscreen != self->fullscreen)
1922         client_fullscreen(self, fullscreen, TRUE);
1923     if (shaded != self->shaded)
1924         client_shade(self, shaded);
1925     client_calc_layer(self);
1926     client_change_state(self); /* change the hint to relect these changes */
1927 }
1928
1929 gboolean client_focus(Client *self)
1930 {
1931     XEvent ev;
1932     Client *child;
1933      
1934     /* if we have a modal child, then focus it, not us */
1935     child = client_find_modal_child(self);
1936     if (child)
1937         return client_focus(child);
1938
1939     /* won't try focus if the client doesn't want it, or if the window isn't
1940        visible on the screen */
1941     if (!(self->frame->visible &&
1942           (self->can_focus || self->focus_notify)))
1943         return FALSE;
1944
1945     /* do a check to see if the window has already been unmapped or destroyed
1946        do this intelligently while watching out for unmaps we've generated
1947        (ignore_unmaps > 0) */
1948     if (XCheckTypedWindowEvent(ob_display, self->window,
1949                                DestroyNotify, &ev)) {
1950         XPutBackEvent(ob_display, &ev);
1951         return FALSE;
1952     }
1953     while (XCheckTypedWindowEvent(ob_display, self->window,
1954                                   UnmapNotify, &ev)) {
1955         if (self->ignore_unmaps) {
1956             self->ignore_unmaps--;
1957         } else {
1958             XPutBackEvent(ob_display, &ev);
1959             return FALSE;
1960         }
1961     }
1962
1963     if (self->can_focus)
1964         /* RevertToPointerRoot causes much more headache than TevertToNone, so
1965            I choose to use it always, hopefully to find errors quicker, if any
1966            are left. (I hate X. I hate focus events.) */
1967         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
1968                        event_lasttime);
1969
1970     if (self->focus_notify) {
1971         XEvent ce;
1972         ce.xclient.type = ClientMessage;
1973         ce.xclient.message_type = prop_atoms.wm_protocols;
1974         ce.xclient.display = ob_display;
1975         ce.xclient.window = self->window;
1976         ce.xclient.format = 32;
1977         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
1978         ce.xclient.data.l[1] = event_lasttime;
1979         ce.xclient.data.l[2] = 0l;
1980         ce.xclient.data.l[3] = 0l;
1981         ce.xclient.data.l[4] = 0l;
1982         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
1983     }
1984
1985     g_message("focusing %lx", self->window);
1986
1987     /* Cause the FocusIn to come back to us. Important for desktop switches,
1988        since otherwise we'll have no FocusIn on the queue and send it off to
1989        the focus_backup. */
1990     XSync(ob_display, FALSE);
1991     return TRUE;
1992 }
1993
1994 void client_unfocus(Client *self)
1995 {
1996     g_assert(focus_client == self);
1997     focus_fallback(FALSE);
1998 }
1999
2000 gboolean client_focused(Client *self)
2001 {
2002     return self == focus_client;
2003 }
2004
2005 Icon *client_icon(Client *self, int w, int h)
2006 {
2007     int i;
2008     /* si is the smallest image >= req */
2009     /* li is the largest image < req */
2010     unsigned long size, smallest = 0xffffffff, largest = 0, si = 0, li = 0;
2011
2012     if (!self->nicons) return NULL;
2013
2014     for (i = 0; i < self->nicons; ++i) {
2015         size = self->icons[i].width * self->icons[i].height;
2016         if (size < smallest && size >= (unsigned)(w * h)) {
2017             smallest = size;
2018             si = i;
2019         }
2020         if (size > largest && size <= (unsigned)(w * h)) {
2021             largest = size;
2022             li = i;
2023         }
2024     }
2025     if (largest == 0) /* didnt find one smaller than the requested size */
2026         return &self->icons[si];
2027     return &self->icons[li];
2028 }