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allow new windows on other desktops to get focused if specified in a per-app rule
[mikachu/openbox.git] / openbox / client.c
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
2
3    client.c for the Openbox window manager
4    Copyright (c) 2006        Mikael Magnusson
5    Copyright (c) 2003-2007   Dana Jansens
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 2 of the License, or
10    (at your option) any later version.
11
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16
17    See the COPYING file for a copy of the GNU General Public License.
18 */
19
20 #include "client.h"
21 #include "debug.h"
22 #include "startupnotify.h"
23 #include "dock.h"
24 #include "screen.h"
25 #include "moveresize.h"
26 #include "ping.h"
27 #include "place.h"
28 #include "frame.h"
29 #include "session.h"
30 #include "event.h"
31 #include "grab.h"
32 #include "prompt.h"
33 #include "focus.h"
34 #include "focus_cycle.h"
35 #include "stacking.h"
36 #include "openbox.h"
37 #include "group.h"
38 #include "config.h"
39 #include "menuframe.h"
40 #include "keyboard.h"
41 #include "mouse.h"
42 #include "obrender/render.h"
43 #include "gettext.h"
44 #include "obt/display.h"
45 #include "obt/xqueue.h"
46 #include "obt/prop.h"
47
48 #ifdef HAVE_UNISTD_H
49 #  include <unistd.h>
50 #endif
51
52 #ifdef HAVE_SIGNAL_H
53 #  include <signal.h> /* for kill() */
54 #endif
55
56 #include <glib.h>
57 #include <X11/Xutil.h>
58
59 /*! The event mask to grab on client windows */
60 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
61                           ColormapChangeMask)
62
63 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
64                                 ButtonMotionMask)
65
66 typedef struct
67 {
68     ObClientCallback func;
69     gpointer data;
70 } ClientCallback;
71
72 GList          *client_list             = NULL;
73
74 static GSList  *client_destroy_notifies = NULL;
75 static RrImage *client_default_icon     = NULL;
76
77 static void client_get_all(ObClient *self, gboolean real);
78 static void client_get_startup_id(ObClient *self);
79 static void client_get_session_ids(ObClient *self);
80 static void client_save_app_rule_values(ObClient *self);
81 static void client_get_area(ObClient *self);
82 static void client_get_desktop(ObClient *self);
83 static void client_get_state(ObClient *self);
84 static void client_get_shaped(ObClient *self);
85 static void client_get_colormap(ObClient *self);
86 static void client_set_desktop_recursive(ObClient *self,
87                                          guint target,
88                                          gboolean donthide,
89                                          gboolean dontraise);
90 static void client_change_allowed_actions(ObClient *self);
91 static void client_change_state(ObClient *self);
92 static void client_change_wm_state(ObClient *self);
93 static void client_apply_startup_state(ObClient *self,
94                                        gint x, gint y, gint w, gint h);
95 static void client_restore_session_state(ObClient *self);
96 static gboolean client_restore_session_stacking(ObClient *self);
97 static ObAppSettings *client_get_settings_state(ObClient *self);
98 static void client_update_transient_tree(ObClient *self,
99                                          ObGroup *oldgroup, ObGroup *newgroup,
100                                          gboolean oldgtran, gboolean newgtran,
101                                          ObClient* oldparent,
102                                          ObClient *newparent);
103 static void client_present(ObClient *self, gboolean here, gboolean raise,
104                            gboolean unshade);
105 static GSList *client_search_all_top_parents_internal(ObClient *self,
106                                                       gboolean bylayer,
107                                                       ObStackingLayer layer);
108 static void client_call_notifies(ObClient *self, GSList *list);
109 static void client_ping_event(ObClient *self, gboolean dead);
110 static void client_prompt_kill(ObClient *self);
111 static gboolean client_can_steal_focus(ObClient *self,
112                                        gboolean allow_other_desktop,
113                                        Time steal_time, Time launch_time);
114
115 void client_startup(gboolean reconfig)
116 {
117     if ((client_default_icon = RrImageCacheFind(ob_rr_icons,
118                                                 ob_rr_theme->def_win_icon,
119                                                 ob_rr_theme->def_win_icon_w,
120                                                 ob_rr_theme->def_win_icon_h)))
121         RrImageRef(client_default_icon);
122     else {
123         client_default_icon = RrImageNew(ob_rr_icons);
124         RrImageAddPicture(client_default_icon,
125                           ob_rr_theme->def_win_icon,
126                           ob_rr_theme->def_win_icon_w,
127                           ob_rr_theme->def_win_icon_h);
128     }
129
130     if (reconfig) return;
131
132     client_set_list();
133 }
134
135 void client_shutdown(gboolean reconfig)
136 {
137     RrImageUnref(client_default_icon);
138     client_default_icon = NULL;
139
140     if (reconfig) return;
141 }
142
143 static void client_call_notifies(ObClient *self, GSList *list)
144 {
145     GSList *it;
146
147     for (it = list; it; it = g_slist_next(it)) {
148         ClientCallback *d = it->data;
149         d->func(self, d->data);
150     }
151 }
152
153 void client_add_destroy_notify(ObClientCallback func, gpointer data)
154 {
155     ClientCallback *d = g_slice_new(ClientCallback);
156     d->func = func;
157     d->data = data;
158     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
159 }
160
161 void client_remove_destroy_notify(ObClientCallback func)
162 {
163     GSList *it;
164
165     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
166         ClientCallback *d = it->data;
167         if (d->func == func) {
168             g_slice_free(ClientCallback, d);
169             client_destroy_notifies =
170                 g_slist_delete_link(client_destroy_notifies, it);
171             break;
172         }
173     }
174 }
175
176 void client_set_list(void)
177 {
178     Window *windows, *win_it;
179     GList *it;
180     guint size = g_list_length(client_list);
181
182     /* create an array of the window ids */
183     if (size > 0) {
184         windows = g_new(Window, size);
185         win_it = windows;
186         for (it = client_list; it; it = g_list_next(it), ++win_it)
187             *win_it = ((ObClient*)it->data)->window;
188     } else
189         windows = NULL;
190
191     OBT_PROP_SETA32(obt_root(ob_screen), NET_CLIENT_LIST, WINDOW,
192                     (gulong*)windows, size);
193
194     if (windows)
195         g_free(windows);
196
197     stacking_set_list();
198 }
199
200 void client_manage(Window window, ObPrompt *prompt)
201 {
202     ObClient *self;
203     XSetWindowAttributes attrib_set;
204     gboolean activate = FALSE;
205     ObAppSettings *settings;
206     gboolean transient = FALSE;
207     Rect place;
208     Time launch_time;
209     guint32 user_time;
210     gboolean obplaced;
211
212     ob_debug("Managing window: 0x%lx", window);
213
214     /* choose the events we want to receive on the CLIENT window
215        (ObPrompt windows can request events too) */
216     attrib_set.event_mask = CLIENT_EVENTMASK |
217         (prompt ? prompt->event_mask : 0);
218     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
219     XChangeWindowAttributes(obt_display, window,
220                             CWEventMask|CWDontPropagate, &attrib_set);
221
222     /* create the ObClient struct, and populate it from the hints on the
223        window */
224     self = g_slice_new0(ObClient);
225     self->obwin.type = OB_WINDOW_CLASS_CLIENT;
226     self->window = window;
227     self->prompt = prompt;
228     self->managed = TRUE;
229
230     /* non-zero defaults */
231     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
232     self->gravity = NorthWestGravity;
233     self->desktop = screen_num_desktops; /* always an invalid value */
234
235     /* get all the stuff off the window */
236     client_get_all(self, TRUE);
237
238     ob_debug("Window type: %d", self->type);
239     ob_debug("Window group: 0x%x", self->group?self->group->leader:0);
240     ob_debug("Window name: %s class: %s role: %s title: %s",
241              self->name, self->class, self->role, self->title);
242
243     /* per-app settings override stuff from client_get_all, and return the
244        settings for other uses too. the returned settings is a shallow copy,
245        that needs to be freed with g_free(). */
246     settings = client_get_settings_state(self);
247
248     /* now we have all of the window's information so we can set this up.
249        do this before creating the frame, so it can tell that we are still
250        mapping and doesn't go applying things right away */
251     client_setup_decor_and_functions(self, FALSE);
252
253     /* specify that if we exit, the window should not be destroyed and
254        should be reparented back to root automatically, unless we are managing
255        an internal ObPrompt window  */
256     if (!self->prompt)
257         XChangeSaveSet(obt_display, window, SetModeInsert);
258
259     /* create the decoration frame for the client window */
260     self->frame = frame_new(self);
261
262     frame_grab_client(self->frame);
263
264     /* we've grabbed everything and set everything that we need to at mapping
265        time now */
266     grab_server(FALSE);
267
268     /* the session should get the last say though */
269     client_restore_session_state(self);
270
271     /* tell startup notification that this app started */
272     launch_time = sn_app_started(self->startup_id, self->class, self->name);
273
274     if (!OBT_PROP_GET32(self->window, NET_WM_USER_TIME, CARDINAL, &user_time))
275         user_time = event_time();
276
277     /* do this after we have a frame.. it uses the frame to help determine the
278        WM_STATE to apply. */
279     client_change_state(self);
280
281     /* add ourselves to the focus order */
282     focus_order_add_new(self);
283
284     /* do this to add ourselves to the stacking list in a non-intrusive way */
285     client_calc_layer(self);
286
287     /* focus the new window? */
288     if (ob_state() != OB_STATE_STARTING &&
289         (!self->session || self->session->focused) &&
290         /* this means focus=true for window is same as config_focus_new=true */
291         ((config_focus_new || (settings && settings->focus == 1)) ||
292          client_search_focus_tree_full(self)) &&
293         /* NET_WM_USER_TIME 0 when mapping means don't focus */
294         (user_time != 0) &&
295         /* this checks for focus=false for the window */
296         (!settings || settings->focus != 0) &&
297         focus_valid_target(self, self->desktop,
298                            FALSE, FALSE, TRUE, TRUE, FALSE, FALSE,
299                            settings->focus == 1))
300     {
301         activate = TRUE;
302     }
303
304     /* remove the client's border */
305     XSetWindowBorderWidth(obt_display, self->window, 0);
306
307     /* adjust the frame to the client's size before showing or placing
308        the window */
309     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
310     frame_adjust_client_area(self->frame);
311
312     /* where the frame was placed is where the window was originally */
313     place = self->area;
314
315     /* figure out placement for the window if the window is new */
316     if (ob_state() == OB_STATE_RUNNING) {
317         ob_debug("Positioned: %s @ %d %d",
318                  (!self->positioned ? "no" :
319                   (self->positioned == PPosition ? "program specified" :
320                    (self->positioned == USPosition ? "user specified" :
321                     (self->positioned == (PPosition | USPosition) ?
322                      "program + user specified" :
323                      "BADNESS !?")))), place.x, place.y);
324
325         ob_debug("Sized: %s @ %d %d",
326                  (!self->sized ? "no" :
327                   (self->sized == PSize ? "program specified" :
328                    (self->sized == USSize ? "user specified" :
329                     (self->sized == (PSize | USSize) ?
330                      "program + user specified" :
331                      "BADNESS !?")))), place.width, place.height);
332
333         obplaced = place_client(self, &place.x, &place.y, settings);
334
335         /* watch for buggy apps that ask to be placed at (0,0) when there is
336            a strut there */
337         if (!obplaced && place.x == 0 && place.y == 0 &&
338             /* non-normal windows are allowed */
339             client_normal(self) &&
340             /* oldschool fullscreen windows are allowed */
341             !client_is_oldfullscreen(self, &place))
342         {
343             Rect *r;
344
345             r = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS, NULL);
346             if (r->x || r->y) {
347                 place.x = r->x;
348                 place.y = r->y;
349                 ob_debug("Moving buggy app from (0,0) to (%d,%d)", r->x, r->y);
350             }
351             g_slice_free(Rect, r);
352         }
353
354         /* make sure the window is visible. */
355         client_find_onscreen(self, &place.x, &place.y,
356                              place.width, place.height,
357                              /* non-normal clients has less rules, and
358                                 windows that are being restored from a
359                                 session do also. we can assume you want
360                                 it back where you saved it. Clients saying
361                                 they placed themselves are subjected to
362                                 harder rules, ones that are placed by
363                                 place.c or by the user are allowed partially
364                                 off-screen and on xinerama divides (ie,
365                                 it is up to the placement routines to avoid
366                                 the xinerama divides)
367
368                                 children and splash screens are forced on
369                                 screen, but i don't remember why i decided to
370                                 do that.
371                              */
372                              ob_state() == OB_STATE_RUNNING &&
373                              (self->type == OB_CLIENT_TYPE_DIALOG ||
374                               self->type == OB_CLIENT_TYPE_SPLASH ||
375                               (!((self->positioned & USPosition) ||
376                                  (settings && settings->pos_given)) &&
377                                client_normal(self) &&
378                                !self->session &&
379                                /* don't move oldschool fullscreen windows to
380                                   fit inside the struts (fixes Acroread, which
381                                   makes its fullscreen window fit the screen
382                                   but it is not USSize'd or USPosition'd) */
383                                !client_is_oldfullscreen(self, &place))));
384     }
385
386     /* if the window isn't user-sized, then make it fit inside
387        the visible screen area on its monitor. Use basically the same rules
388        for forcing the window on screen in the client_find_onscreen call.
389
390        do this after place_client, it chooses the monitor!
391
392        splash screens get "transient" set to TRUE by
393        the place_client call
394     */
395     if (ob_state() == OB_STATE_RUNNING &&
396         (transient ||
397          (!(self->sized & USSize || self->positioned & USPosition) &&
398           client_normal(self) &&
399           !self->session &&
400           /* don't shrink oldschool fullscreen windows to fit inside the
401              struts (fixes Acroread, which makes its fullscreen window
402              fit the screen but it is not USSize'd or USPosition'd) */
403           !client_is_oldfullscreen(self, &place))))
404     {
405         Rect *a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &place);
406
407         /* get the size of the frame */
408         place.width += self->frame->size.left + self->frame->size.right;
409         place.height += self->frame->size.top + self->frame->size.bottom;
410
411         /* fit the window inside the area */
412         place.width = MIN(place.width, a->width);
413         place.height = MIN(place.height, a->height);
414
415         ob_debug("setting window size to %dx%d", place.width, place.height);
416
417         /* get the size of the client back */
418         place.width -= self->frame->size.left + self->frame->size.right;
419         place.height -= self->frame->size.top + self->frame->size.bottom;
420
421         g_slice_free(Rect, a);
422     }
423
424     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
425              "some restrictions may apply",
426              self->window, place.x, place.y, place.width, place.height);
427     if (self->session)
428         ob_debug("  but session requested %d, %d  %d x %d instead, "
429                  "overriding",
430                  self->session->x, self->session->y,
431                  self->session->w, self->session->h);
432
433     /* do this after the window is placed, so the premax/prefullscreen numbers
434        won't be all wacko!!
435
436        this also places the window
437     */
438     client_apply_startup_state(self, place.x, place.y,
439                                place.width, place.height);
440
441     ob_debug_type(OB_DEBUG_FOCUS, "Going to try activate new window? %s",
442                   activate ? "yes" : "no");
443     if (activate) {
444         activate = client_can_steal_focus(self, (settings && settings->focus),
445                                           event_time(), launch_time);
446
447         if (!activate) {
448             /* if the client isn't stealing focus, then hilite it so the user
449                knows it is there, but don't do this if we're restoring from a
450                session */
451             if (!client_restore_session_stacking(self))
452                 client_hilite(self, TRUE);
453         }
454     }
455     else {
456         /* This may look rather odd. Well it's because new windows are added
457            to the stacking order non-intrusively. If we're not going to focus
458            the new window or hilite it, then we raise it to the top. This will
459            take affect for things that don't get focused like splash screens.
460            Also if you don't have focus_new enabled, then it's going to get
461            raised to the top. Legacy begets legacy I guess?
462         */
463         if (!client_restore_session_stacking(self))
464             stacking_raise(CLIENT_AS_WINDOW(self));
465     }
466
467     mouse_grab_for_client(self, TRUE);
468
469     /* this has to happen before we try focus the window, but we want it to
470        happen after the client's stacking has been determined or it looks bad
471     */
472     {
473         gulong ignore_start;
474         if (!config_focus_under_mouse)
475             ignore_start = event_start_ignore_all_enters();
476
477         client_show(self);
478
479         if (!config_focus_under_mouse)
480             event_end_ignore_all_enters(ignore_start);
481     }
482
483     if (activate) {
484         gboolean stacked = client_restore_session_stacking(self);
485         client_present(self, FALSE, !stacked, TRUE);
486     }
487
488     /* add to client list/map */
489     client_list = g_list_append(client_list, self);
490     window_add(&self->window, CLIENT_AS_WINDOW(self));
491
492     /* this has to happen after we're in the client_list */
493     if (STRUT_EXISTS(self->strut))
494         screen_update_areas();
495
496     /* update the list hints */
497     client_set_list();
498
499     /* free the ObAppSettings shallow copy */
500     g_slice_free(ObAppSettings, settings);
501
502     ob_debug("Managed window 0x%lx plate 0x%x (%s)",
503              window, self->frame->window, self->class);
504 }
505
506 ObClient *client_fake_manage(Window window)
507 {
508     ObClient *self;
509     ObAppSettings *settings;
510
511     ob_debug("Pretend-managing window: %lx", window);
512
513     /* do this minimal stuff to figure out the client's decorations */
514
515     self = g_slice_new0(ObClient);
516     self->window = window;
517
518     client_get_all(self, FALSE);
519     /* per-app settings override stuff, and return the settings for other
520        uses too. this returns a shallow copy that needs to be freed */
521     settings = client_get_settings_state(self);
522
523     client_setup_decor_and_functions(self, FALSE);
524
525     /* create the decoration frame for the client window and adjust its size */
526     self->frame = frame_new(self);
527     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
528
529     ob_debug("gave extents left %d right %d top %d bottom %d",
530              self->frame->size.left, self->frame->size.right,
531              self->frame->size.top, self->frame->size.bottom);
532
533     /* free the ObAppSettings shallow copy */
534     g_slice_free(ObAppSettings, settings);
535
536     return self;
537 }
538
539 void client_unmanage_all(void)
540 {
541     while (client_list)
542         client_unmanage(client_list->data);
543 }
544
545 void client_unmanage(ObClient *self)
546 {
547     GSList *it;
548     gulong ignore_start;
549
550     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)",
551              self->window, self->frame->window,
552              self->class, self->title ? self->title : "");
553
554     g_assert(self != NULL);
555
556     /* we dont want events no more. do this before hiding the frame so we
557        don't generate more events */
558     XSelectInput(obt_display, self->window, NoEventMask);
559
560     /* ignore enter events from the unmap so it doesnt mess with the focus */
561     if (!config_focus_under_mouse)
562         ignore_start = event_start_ignore_all_enters();
563
564     frame_hide(self->frame);
565     /* flush to send the hide to the server quickly */
566     XFlush(obt_display);
567
568     if (!config_focus_under_mouse)
569         event_end_ignore_all_enters(ignore_start);
570
571     mouse_grab_for_client(self, FALSE);
572
573     self->managed = FALSE;
574
575     /* remove the window from our save set, unless we are managing an internal
576        ObPrompt window */
577     if (!self->prompt)
578         XChangeSaveSet(obt_display, self->window, SetModeDelete);
579
580     /* update the focus lists */
581     focus_order_remove(self);
582     if (client_focused(self)) {
583         /* don't leave an invalid focus_client */
584         focus_client = NULL;
585     }
586
587     /* if we're prompting to kill the client, close that */
588     prompt_unref(self->kill_prompt);
589     self->kill_prompt = NULL;
590
591     client_list = g_list_remove(client_list, self);
592     stacking_remove(self);
593     window_remove(self->window);
594
595     /* once the client is out of the list, update the struts to remove its
596        influence */
597     if (STRUT_EXISTS(self->strut))
598         screen_update_areas();
599
600     client_call_notifies(self, client_destroy_notifies);
601
602     /* tell our parent(s) that we're gone */
603     for (it = self->parents; it; it = g_slist_next(it))
604         ((ObClient*)it->data)->transients =
605             g_slist_remove(((ObClient*)it->data)->transients,self);
606
607     /* tell our transients that we're gone */
608     for (it = self->transients; it; it = g_slist_next(it)) {
609         ((ObClient*)it->data)->parents =
610             g_slist_remove(((ObClient*)it->data)->parents, self);
611         /* we could be keeping our children in a higher layer */
612         client_calc_layer(it->data);
613     }
614
615     /* remove from its group */
616     if (self->group) {
617         group_remove(self->group, self);
618         self->group = NULL;
619     }
620
621     /* restore the window's original geometry so it is not lost */
622     {
623         Rect a;
624
625         a = self->area;
626
627         if (self->fullscreen)
628             a = self->pre_fullscreen_area;
629         else if (self->max_horz || self->max_vert) {
630             if (self->max_horz) {
631                 a.x = self->pre_max_area.x;
632                 a.width = self->pre_max_area.width;
633             }
634             if (self->max_vert) {
635                 a.y = self->pre_max_area.y;
636                 a.height = self->pre_max_area.height;
637             }
638         }
639
640         self->fullscreen = self->max_horz = self->max_vert = FALSE;
641         /* let it be moved and resized no matter what */
642         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
643         self->decorations = 0; /* unmanaged windows have no decor */
644
645         /* give the client its border back */
646         XSetWindowBorderWidth(obt_display, self->window, self->border_width);
647
648         client_move_resize(self, a.x, a.y, a.width, a.height);
649     }
650
651     /* reparent the window out of the frame, and free the frame */
652     frame_release_client(self->frame);
653     frame_free(self->frame);
654     self->frame = NULL;
655
656     if (ob_state() != OB_STATE_EXITING) {
657         /* these values should not be persisted across a window
658            unmapping/mapping */
659         OBT_PROP_ERASE(self->window, NET_WM_DESKTOP);
660         OBT_PROP_ERASE(self->window, NET_WM_STATE);
661         OBT_PROP_ERASE(self->window, WM_STATE);
662     } else {
663         /* if we're left in an unmapped state, the client wont be mapped.
664            this is bad, since we will no longer be managing the window on
665            restart */
666         XMapWindow(obt_display, self->window);
667     }
668
669     /* these should not be left on the window ever.  other window managers
670        don't necessarily use them and it will mess them up (like compiz) */
671     OBT_PROP_ERASE(self->window, NET_WM_VISIBLE_NAME);
672     OBT_PROP_ERASE(self->window, NET_WM_VISIBLE_ICON_NAME);
673
674     /* update the list hints */
675     client_set_list();
676
677     ob_debug("Unmanaged window 0x%lx", self->window);
678
679     /* free all data allocated in the client struct */
680     RrImageUnref(self->icon_set);
681     g_slist_free(self->transients);
682     g_free(self->startup_id);
683     g_free(self->wm_command);
684     g_free(self->title);
685     g_free(self->icon_title);
686     g_free(self->original_title);
687     g_free(self->name);
688     g_free(self->class);
689     g_free(self->role);
690     g_free(self->client_machine);
691     g_free(self->sm_client_id);
692     g_slice_free(ObClient, self);
693 }
694
695 void client_fake_unmanage(ObClient *self)
696 {
697     /* this is all that got allocated to get the decorations */
698
699     frame_free(self->frame);
700     g_slice_free(ObClient, self);
701 }
702
703 static gboolean client_can_steal_focus(ObClient *self,
704                                        gboolean allow_other_desktop,
705                                        Time steal_time,
706                                        Time launch_time)
707 {
708     gboolean steal;
709     gboolean relative_focused;
710     gboolean parent_focused;
711
712     steal = TRUE;
713
714     parent_focused = (focus_client != NULL &&
715                       client_search_focus_parent(self));
716     relative_focused = (focus_client != NULL &&
717                         (client_search_focus_tree_full(self) != NULL ||
718                          client_search_focus_group_full(self) != NULL));
719
720     /* This is focus stealing prevention */
721     ob_debug_type(OB_DEBUG_FOCUS,
722                   "Want to focus window 0x%x at time %u "
723                   "launched at %u (last user interaction time %u)",
724                   self->window, steal_time, launch_time,
725                   event_last_user_time);
726
727     /* if it's on another desktop... */
728     if (!(self->desktop == screen_desktop ||
729           self->desktop == DESKTOP_ALL) &&
730         /* and (we dont know when it launched, and we don't want to allow
731            focus stealing from other desktops */
732         ((!launch_time && !allow_other_desktop) ||
733          /* or the timestamp is from before you changed desktops) */
734          (screen_desktop_user_time &&
735           !event_time_after(launch_time, screen_desktop_user_time))))
736     {
737         steal = FALSE;
738         ob_debug_type(OB_DEBUG_FOCUS,
739                       "Not focusing the window because its on another "
740                       "desktop\n");
741     }
742     /* If something is focused... */
743     else if (focus_client) {
744         /* If the user is working in another window right now, then don't
745            steal focus */
746         if (!parent_focused &&
747             event_last_user_time && launch_time &&
748             event_time_after(event_last_user_time, launch_time) &&
749             event_last_user_time != launch_time &&
750             event_time_after(event_last_user_time,
751                              steal_time - OB_EVENT_USER_TIME_DELAY))
752         {
753             steal = FALSE;
754             ob_debug_type(OB_DEBUG_FOCUS,
755                           "Not focusing the window because the user is "
756                           "working in another window that is not "
757                           "its parent");
758         }
759         /* If the new window is a transient (and its relatives aren't
760            focused) */
761         else if (client_has_parent(self) && !relative_focused) {
762             steal = FALSE;
763             ob_debug_type(OB_DEBUG_FOCUS,
764                           "Not focusing the window because it is a "
765                           "transient, and its relatives aren't focused");
766         }
767         /* Don't steal focus from globally active clients.
768            I stole this idea from KWin. It seems nice.
769         */
770         else if (!(focus_client->can_focus ||
771                    focus_client->focus_notify))
772         {
773             steal = FALSE;
774             ob_debug_type(OB_DEBUG_FOCUS,
775                           "Not focusing the window because a globally "
776                           "active client has focus");
777         }
778         /* Don't move focus if it's not going to go to this window
779            anyway */
780         else if (client_focus_target(self) != self) {
781             steal = FALSE;
782             ob_debug_type(OB_DEBUG_FOCUS,
783                           "Not focusing the window because another window "
784                           "would get the focus anyway");
785         }
786         /* Don't move focus if the window is not visible on the current
787            desktop and none of its relatives are focused */
788         else if (!(self->desktop == screen_desktop ||
789                    self->desktop == DESKTOP_ALL) &&
790                  !relative_focused)
791         {
792             steal = FALSE;
793             ob_debug_type(OB_DEBUG_FOCUS,
794                           "Not focusing the window because it is on "
795                           "another desktop and no relatives are focused ");
796         }
797     }
798
799     if (!steal)
800         ob_debug_type(OB_DEBUG_FOCUS,
801                       "Focus stealing prevention activated for %s at "
802                       "time %u (last user interaction time %u)",
803                       self->title, steal_time, event_last_user_time);
804     return steal;
805 }
806
807 /*! Returns a new structure containing the per-app settings for this client.
808   The returned structure needs to be freed with g_free. */
809 static ObAppSettings *client_get_settings_state(ObClient *self)
810 {
811     ObAppSettings *settings;
812     GSList *it;
813
814     settings = config_create_app_settings();
815
816     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
817         ObAppSettings *app = it->data;
818         gboolean match = TRUE;
819
820         g_assert(app->name != NULL || app->class != NULL ||
821                  app->role != NULL || app->title != NULL ||
822                  (signed)app->type >= 0);
823
824         if (app->name &&
825             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
826             match = FALSE;
827         else if (app->class &&
828                  !g_pattern_match(app->class,
829                                   strlen(self->class), self->class, NULL))
830             match = FALSE;
831         else if (app->role &&
832                  !g_pattern_match(app->role,
833                                   strlen(self->role), self->role, NULL))
834             match = FALSE;
835         else if (app->title &&
836                  !g_pattern_match(app->title,
837                                   strlen(self->title), self->title, NULL))
838             match = FALSE;
839         else if ((signed)app->type >= 0 && app->type != self->type) {
840             match = FALSE;
841         }
842
843         if (match) {
844             ob_debug("Window matching: %s", app->name);
845
846             /* copy the settings to our struct, overriding the existing
847                settings if they are not defaults */
848             config_app_settings_copy_non_defaults(app, settings);
849         }
850     }
851
852     if (settings->shade != -1)
853         self->shaded = !!settings->shade;
854     if (settings->decor != -1)
855         self->undecorated = !settings->decor;
856     if (settings->iconic != -1)
857         self->iconic = !!settings->iconic;
858     if (settings->skip_pager != -1)
859         self->skip_pager = !!settings->skip_pager;
860     if (settings->skip_taskbar != -1)
861         self->skip_taskbar = !!settings->skip_taskbar;
862
863     if (settings->max_vert != -1)
864         self->max_vert = !!settings->max_vert;
865     if (settings->max_horz != -1)
866         self->max_horz = !!settings->max_horz;
867
868     if (settings->fullscreen != -1)
869         self->fullscreen = !!settings->fullscreen;
870
871     if (settings->desktop) {
872         if (settings->desktop == DESKTOP_ALL)
873             self->desktop = settings->desktop;
874         else if (settings->desktop > 0 &&
875                  settings->desktop <= screen_num_desktops)
876             self->desktop = settings->desktop - 1;
877     }
878
879     if (settings->layer == -1) {
880         self->below = TRUE;
881         self->above = FALSE;
882     }
883     else if (settings->layer == 0) {
884         self->below = FALSE;
885         self->above = FALSE;
886     }
887     else if (settings->layer == 1) {
888         self->below = FALSE;
889         self->above = TRUE;
890     }
891     return settings;
892 }
893
894 static void client_restore_session_state(ObClient *self)
895 {
896     GList *it;
897
898     ob_debug_type(OB_DEBUG_SM,
899                   "Restore session for client %s", self->title);
900
901     if (!(it = session_state_find(self))) {
902         ob_debug_type(OB_DEBUG_SM,
903                       "Session data not found for client %s", self->title);
904         return;
905     }
906
907     self->session = it->data;
908
909     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s",
910                   self->title);
911
912     RECT_SET_POINT(self->area, self->session->x, self->session->y);
913     self->positioned = USPosition;
914     self->sized = USSize;
915     if (self->session->w > 0)
916         self->area.width = self->session->w;
917     if (self->session->h > 0)
918         self->area.height = self->session->h;
919     XResizeWindow(obt_display, self->window,
920                   self->area.width, self->area.height);
921
922     self->desktop = (self->session->desktop == DESKTOP_ALL ?
923                      self->session->desktop :
924                      MIN(screen_num_desktops - 1, self->session->desktop));
925     OBT_PROP_SET32(self->window, NET_WM_DESKTOP, CARDINAL, self->desktop);
926
927     self->shaded = self->session->shaded;
928     self->iconic = self->session->iconic;
929     self->skip_pager = self->session->skip_pager;
930     self->skip_taskbar = self->session->skip_taskbar;
931     self->fullscreen = self->session->fullscreen;
932     self->above = self->session->above;
933     self->below = self->session->below;
934     self->max_horz = self->session->max_horz;
935     self->max_vert = self->session->max_vert;
936     self->undecorated = self->session->undecorated;
937 }
938
939 static gboolean client_restore_session_stacking(ObClient *self)
940 {
941     GList *it, *mypos;
942
943     if (!self->session) return FALSE;
944
945     mypos = g_list_find(session_saved_state, self->session);
946     if (!mypos) return FALSE;
947
948     /* start above me and look for the first client */
949     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
950         GList *cit;
951
952         for (cit = client_list; cit; cit = g_list_next(cit)) {
953             ObClient *c = cit->data;
954             /* found a client that was in the session, so go below it */
955             if (c->session == it->data) {
956                 stacking_below(CLIENT_AS_WINDOW(self),
957                                CLIENT_AS_WINDOW(cit->data));
958                 return TRUE;
959             }
960         }
961     }
962     return FALSE;
963 }
964
965 void client_move_onscreen(ObClient *self, gboolean rude)
966 {
967     gint x = self->area.x;
968     gint y = self->area.y;
969     if (client_find_onscreen(self, &x, &y,
970                              self->area.width,
971                              self->area.height, rude)) {
972         client_move(self, x, y);
973     }
974 }
975
976 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
977                               gboolean rude)
978 {
979     gint ox = *x, oy = *y;
980     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
981     gint fw, fh;
982     Rect desired;
983     guint i;
984     gboolean found_mon;
985
986     RECT_SET(desired, *x, *y, w, h);
987     frame_rect_to_frame(self->frame, &desired);
988
989     /* get where the frame would be */
990     frame_client_gravity(self->frame, x, y);
991
992     /* get the requested size of the window with decorations */
993     fw = self->frame->size.left + w + self->frame->size.right;
994     fh = self->frame->size.top + h + self->frame->size.bottom;
995
996     /* If rudeness wasn't requested, then still be rude in a given direction
997        if the client is not moving, only resizing in that direction */
998     if (!rude) {
999         Point oldtl, oldtr, oldbl, oldbr;
1000         Point newtl, newtr, newbl, newbr;
1001         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
1002
1003         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
1004         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
1005                   self->frame->area.y + self->frame->area.height - 1);
1006         POINT_SET(oldtr, oldbr.x, oldtl.y);
1007         POINT_SET(oldbl, oldtl.x, oldbr.y);
1008
1009         POINT_SET(newtl, *x, *y);
1010         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
1011         POINT_SET(newtr, newbr.x, newtl.y);
1012         POINT_SET(newbl, newtl.x, newbr.y);
1013
1014         /* is it moving or just resizing from some corner? */
1015         stationary_l = oldtl.x == newtl.x;
1016         stationary_r = oldtr.x == newtr.x;
1017         stationary_t = oldtl.y == newtl.y;
1018         stationary_b = oldbl.y == newbl.y;
1019
1020         /* if left edge is growing and didnt move right edge */
1021         if (stationary_r && newtl.x < oldtl.x)
1022             rudel = TRUE;
1023         /* if right edge is growing and didnt move left edge */
1024         if (stationary_l && newtr.x > oldtr.x)
1025             ruder = TRUE;
1026         /* if top edge is growing and didnt move bottom edge */
1027         if (stationary_b && newtl.y < oldtl.y)
1028             rudet = TRUE;
1029         /* if bottom edge is growing and didnt move top edge */
1030         if (stationary_t && newbl.y > oldbl.y)
1031             rudeb = TRUE;
1032     }
1033
1034     /* we iterate through every monitor that the window is at least partially
1035        on, to make sure it is obeying the rules on them all
1036
1037        if the window does not appear on any monitors, then use the first one
1038     */
1039     found_mon = FALSE;
1040     for (i = 0; i < screen_num_monitors; ++i) {
1041         Rect *a;
1042
1043         if (!screen_physical_area_monitor_contains(i, &desired)) {
1044             if (i < screen_num_monitors - 1 || found_mon)
1045                 continue;
1046
1047             /* the window is not inside any monitor! so just use the first
1048                one */
1049             a = screen_area(self->desktop, 0, NULL);
1050         } else {
1051             found_mon = TRUE;
1052             a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &desired);
1053         }
1054
1055         /* This makes sure windows aren't entirely outside of the screen so you
1056            can't see them at all.
1057            It makes sure 10% of the window is on the screen at least. And don't
1058            let it move itself off the top of the screen, which would hide the
1059            titlebar on you. (The user can still do this if they want too, it's
1060            only limiting the application.
1061         */
1062         if (client_normal(self)) {
1063             if (!self->strut.right && *x + fw/10 >= a->x + a->width - 1)
1064                 *x = a->x + a->width - fw/10;
1065             if (!self->strut.bottom && *y + fh/10 >= a->y + a->height - 1)
1066                 *y = a->y + a->height - fh/10;
1067             if (!self->strut.left && *x + fw*9/10 - 1 < a->x)
1068                 *x = a->x - fw*9/10;
1069             if (!self->strut.top && *y + fh*9/10 - 1 < a->y)
1070                 *y = a->y - fh*9/10;
1071         }
1072
1073         /* This here doesn't let windows even a pixel outside the
1074            struts/screen. When called from client_manage, programs placing
1075            themselves are forced completely onscreen, while things like
1076            xterm -geometry resolution-width/2 will work fine. Trying to
1077            place it completely offscreen will be handled in the above code.
1078            Sorry for this confused comment, i am tired. */
1079         if (rudel && !self->strut.left && *x < a->x) *x = a->x;
1080         if (ruder && !self->strut.right && *x + fw > a->x + a->width)
1081             *x = a->x + MAX(0, a->width - fw);
1082
1083         if (rudet && !self->strut.top && *y < a->y) *y = a->y;
1084         if (rudeb && !self->strut.bottom && *y + fh > a->y + a->height)
1085             *y = a->y + MAX(0, a->height - fh);
1086
1087         g_slice_free(Rect, a);
1088     }
1089
1090     /* get where the client should be */
1091     frame_frame_gravity(self->frame, x, y);
1092
1093     return ox != *x || oy != *y;
1094 }
1095
1096 static void client_get_all(ObClient *self, gboolean real)
1097 {
1098     /* this is needed for the frame to set itself up */
1099     client_get_area(self);
1100
1101     /* these things can change the decor and functions of the window */
1102
1103     client_get_mwm_hints(self);
1104     /* this can change the mwmhints for special cases */
1105     client_get_type_and_transientness(self);
1106     client_get_state(self);
1107     client_update_normal_hints(self);
1108
1109     /* get the session related properties, these can change decorations
1110        from per-app settings */
1111     client_get_session_ids(self);
1112
1113     /* now we got everything that can affect the decorations */
1114     if (!real)
1115         return;
1116
1117     /* get this early so we have it for debugging */
1118     client_update_title(self);
1119
1120     /* save the values of the variables used for app rule matching */
1121     client_save_app_rule_values(self);
1122
1123     client_update_protocols(self);
1124
1125     client_update_wmhints(self);
1126     /* this may have already been called from client_update_wmhints */
1127     if (!self->parents && !self->transient_for_group)
1128         client_update_transient_for(self);
1129
1130     client_get_startup_id(self);
1131     client_get_desktop(self);/* uses transient data/group/startup id if a
1132                                 desktop is not specified */
1133     client_get_shaped(self);
1134
1135     {
1136         /* a couple type-based defaults for new windows */
1137
1138         /* this makes sure that these windows appear on all desktops */
1139         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1140             self->desktop = DESKTOP_ALL;
1141     }
1142
1143 #ifdef SYNC
1144     client_update_sync_request_counter(self);
1145 #endif
1146
1147     client_get_colormap(self);
1148     client_update_strut(self);
1149     client_update_icons(self);
1150     client_update_icon_geometry(self);
1151 }
1152
1153 static void client_get_startup_id(ObClient *self)
1154 {
1155     if (!(OBT_PROP_GETS(self->window, NET_STARTUP_ID, utf8,
1156                         &self->startup_id)))
1157         if (self->group)
1158             OBT_PROP_GETS(self->group->leader,
1159                           NET_STARTUP_ID, utf8, &self->startup_id);
1160 }
1161
1162 static void client_get_area(ObClient *self)
1163 {
1164     XWindowAttributes wattrib;
1165     Status ret;
1166
1167     ret = XGetWindowAttributes(obt_display, self->window, &wattrib);
1168     g_assert(ret != BadWindow);
1169
1170     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1171     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1172     self->border_width = wattrib.border_width;
1173
1174     ob_debug("client area: %d %d  %d %d  bw %d", wattrib.x, wattrib.y,
1175              wattrib.width, wattrib.height, wattrib.border_width);
1176 }
1177
1178 static void client_get_desktop(ObClient *self)
1179 {
1180     guint32 d = screen_num_desktops; /* an always-invalid value */
1181
1182     if (OBT_PROP_GET32(self->window, NET_WM_DESKTOP, CARDINAL, &d)) {
1183         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1184             self->desktop = screen_num_desktops - 1;
1185         else
1186             self->desktop = d;
1187         ob_debug("client requested desktop 0x%x", self->desktop);
1188     } else {
1189         GSList *it;
1190         gboolean first = TRUE;
1191         guint all = screen_num_desktops; /* not a valid value */
1192
1193         /* if they are all on one desktop, then open it on the
1194            same desktop */
1195         for (it = self->parents; it; it = g_slist_next(it)) {
1196             ObClient *c = it->data;
1197
1198             if (c->desktop == DESKTOP_ALL) continue;
1199
1200             if (first) {
1201                 all = c->desktop;
1202                 first = FALSE;
1203             }
1204             else if (all != c->desktop)
1205                 all = screen_num_desktops; /* make it invalid */
1206         }
1207         if (all != screen_num_desktops) {
1208             self->desktop = all;
1209
1210             ob_debug("client desktop set from parents: 0x%x",
1211                      self->desktop);
1212         }
1213         /* try get from the startup-notification protocol */
1214         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1215             if (self->desktop >= screen_num_desktops &&
1216                 self->desktop != DESKTOP_ALL)
1217                 self->desktop = screen_num_desktops - 1;
1218             ob_debug("client desktop set from startup-notification: 0x%x",
1219                      self->desktop);
1220         }
1221         /* defaults to the current desktop */
1222         else {
1223             self->desktop = screen_desktop;
1224             ob_debug("client desktop set to the current desktop: %d",
1225                      self->desktop);
1226         }
1227     }
1228 }
1229
1230 static void client_get_state(ObClient *self)
1231 {
1232     guint32 *state;
1233     guint num;
1234
1235     if (OBT_PROP_GETA32(self->window, NET_WM_STATE, ATOM, &state, &num)) {
1236         gulong i;
1237         for (i = 0; i < num; ++i) {
1238             if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_MODAL))
1239                 self->modal = TRUE;
1240             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_SHADED))
1241                 self->shaded = TRUE;
1242             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_HIDDEN))
1243                 self->iconic = TRUE;
1244             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR))
1245                 self->skip_taskbar = TRUE;
1246             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER))
1247                 self->skip_pager = TRUE;
1248             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN))
1249                 self->fullscreen = TRUE;
1250             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT))
1251                 self->max_vert = TRUE;
1252             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ))
1253                 self->max_horz = TRUE;
1254             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_ABOVE))
1255                 self->above = TRUE;
1256             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_BELOW))
1257                 self->below = TRUE;
1258             else if (state[i] == OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION))
1259                 self->demands_attention = TRUE;
1260             else if (state[i] == OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED))
1261                 self->undecorated = TRUE;
1262         }
1263
1264         g_free(state);
1265     }
1266 }
1267
1268 static void client_get_shaped(ObClient *self)
1269 {
1270     self->shaped = FALSE;
1271 #ifdef SHAPE
1272     if (obt_display_extension_shape) {
1273         gint foo;
1274         guint ufoo;
1275         gint s;
1276
1277         XShapeSelectInput(obt_display, self->window, ShapeNotifyMask);
1278
1279         XShapeQueryExtents(obt_display, self->window, &s, &foo,
1280                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1281                            &ufoo);
1282         self->shaped = !!s;
1283     }
1284 #endif
1285 }
1286
1287 void client_update_transient_for(ObClient *self)
1288 {
1289     Window t = None;
1290     ObClient *target = NULL;
1291     gboolean trangroup = FALSE;
1292
1293     if (XGetTransientForHint(obt_display, self->window, &t)) {
1294         if (t != self->window) { /* can't be transient to itself! */
1295             ObWindow *tw = window_find(t);
1296             /* if this happens then we need to check for it */
1297             g_assert(tw != CLIENT_AS_WINDOW(self));
1298             if (tw && WINDOW_IS_CLIENT(tw)) {
1299                 /* watch out for windows with a parent that is something
1300                    different, like a dockapp for example */
1301                 target = WINDOW_AS_CLIENT(tw);
1302             }
1303         }
1304
1305         /* Setting the transient_for to Root is actually illegal, however
1306            applications from time have done this to specify transient for
1307            their group */
1308         if (!target && self->group && t == obt_root(ob_screen))
1309             trangroup = TRUE;
1310     } else if (self->group && self->transient)
1311         trangroup = TRUE;
1312
1313     client_update_transient_tree(self, self->group, self->group,
1314                                  self->transient_for_group, trangroup,
1315                                  client_direct_parent(self), target);
1316     self->transient_for_group = trangroup;
1317
1318 }
1319
1320 static void client_update_transient_tree(ObClient *self,
1321                                          ObGroup *oldgroup, ObGroup *newgroup,
1322                                          gboolean oldgtran, gboolean newgtran,
1323                                          ObClient* oldparent,
1324                                          ObClient *newparent)
1325 {
1326     GSList *it, *next;
1327     ObClient *c;
1328
1329     g_assert(!oldgtran || oldgroup);
1330     g_assert(!newgtran || newgroup);
1331     g_assert((!oldgtran && !oldparent) ||
1332              (oldgtran && !oldparent) ||
1333              (!oldgtran && oldparent));
1334     g_assert((!newgtran && !newparent) ||
1335              (newgtran && !newparent) ||
1336              (!newgtran && newparent));
1337
1338     /* * *
1339       Group transient windows are not allowed to have other group
1340       transient windows as their children.
1341       * * */
1342
1343     /* No change has occured */
1344     if (oldgroup == newgroup &&
1345         oldgtran == newgtran &&
1346         oldparent == newparent) return;
1347
1348     /** Remove the client from the transient tree **/
1349
1350     for (it = self->transients; it; it = next) {
1351         next = g_slist_next(it);
1352         c = it->data;
1353         self->transients = g_slist_delete_link(self->transients, it);
1354         c->parents = g_slist_remove(c->parents, self);
1355     }
1356     for (it = self->parents; it; it = next) {
1357         next = g_slist_next(it);
1358         c = it->data;
1359         self->parents = g_slist_delete_link(self->parents, it);
1360         c->transients = g_slist_remove(c->transients, self);
1361     }
1362
1363     /** Re-add the client to the transient tree **/
1364
1365     /* If we're transient for a group then we need to add ourselves to all our
1366        parents */
1367     if (newgtran) {
1368         for (it = newgroup->members; it; it = g_slist_next(it)) {
1369             c = it->data;
1370             if (c != self &&
1371                 !client_search_top_direct_parent(c)->transient_for_group &&
1372                 client_normal(c))
1373             {
1374                 c->transients = g_slist_prepend(c->transients, self);
1375                 self->parents = g_slist_prepend(self->parents, c);
1376             }
1377         }
1378     }
1379
1380     /* If we are now transient for a single window we need to add ourselves to
1381        its children
1382
1383        WARNING: Cyclical transient-ness is possible if two windows are
1384        transient for eachother.
1385     */
1386     else if (newparent &&
1387              /* don't make ourself its child if it is already our child */
1388              !client_is_direct_child(self, newparent) &&
1389              client_normal(newparent))
1390     {
1391         newparent->transients = g_slist_prepend(newparent->transients, self);
1392         self->parents = g_slist_prepend(self->parents, newparent);
1393     }
1394
1395     /* Add any group transient windows to our children. But if we're transient
1396        for the group, then other group transients are not our children.
1397
1398        WARNING: Cyclical transient-ness is possible. For e.g. if:
1399        A is transient for the group
1400        B is transient for A
1401        C is transient for B
1402        A can't be transient for C or we have a cycle
1403     */
1404     if (!newgtran && newgroup &&
1405         (!newparent ||
1406          !client_search_top_direct_parent(newparent)->transient_for_group) &&
1407         client_normal(self))
1408     {
1409         for (it = newgroup->members; it; it = g_slist_next(it)) {
1410             c = it->data;
1411             if (c != self && c->transient_for_group &&
1412                 /* Don't make it our child if it is already our parent */
1413                 !client_is_direct_child(c, self))
1414             {
1415                 self->transients = g_slist_prepend(self->transients, c);
1416                 c->parents = g_slist_prepend(c->parents, self);
1417             }
1418         }
1419     }
1420
1421     /** If we change our group transient-ness, our children change their
1422         effective group transient-ness, which affects how they relate to other
1423         group windows **/
1424
1425     for (it = self->transients; it; it = g_slist_next(it)) {
1426         c = it->data;
1427         if (!c->transient_for_group)
1428             client_update_transient_tree(c, c->group, c->group,
1429                                          c->transient_for_group,
1430                                          c->transient_for_group,
1431                                          client_direct_parent(c),
1432                                          client_direct_parent(c));
1433     }
1434 }
1435
1436 void client_get_mwm_hints(ObClient *self)
1437 {
1438     guint num;
1439     guint32 *hints;
1440
1441     self->mwmhints.flags = 0; /* default to none */
1442
1443     if (OBT_PROP_GETA32(self->window, MOTIF_WM_HINTS, MOTIF_WM_HINTS,
1444                         &hints, &num)) {
1445         if (num >= OB_MWM_ELEMENTS) {
1446             self->mwmhints.flags = hints[0];
1447             self->mwmhints.functions = hints[1];
1448             self->mwmhints.decorations = hints[2];
1449         }
1450         g_free(hints);
1451     }
1452 }
1453
1454 void client_get_type_and_transientness(ObClient *self)
1455 {
1456     guint num, i;
1457     guint32 *val;
1458     Window t;
1459
1460     self->type = -1;
1461     self->transient = FALSE;
1462
1463     if (OBT_PROP_GETA32(self->window, NET_WM_WINDOW_TYPE, ATOM, &val, &num)) {
1464         /* use the first value that we know about in the array */
1465         for (i = 0; i < num; ++i) {
1466             if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DESKTOP))
1467                 self->type = OB_CLIENT_TYPE_DESKTOP;
1468             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DOCK))
1469                 self->type = OB_CLIENT_TYPE_DOCK;
1470             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_TOOLBAR))
1471                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1472             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_MENU))
1473                 self->type = OB_CLIENT_TYPE_MENU;
1474             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_UTILITY))
1475                 self->type = OB_CLIENT_TYPE_UTILITY;
1476             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_SPLASH))
1477                 self->type = OB_CLIENT_TYPE_SPLASH;
1478             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_DIALOG))
1479                 self->type = OB_CLIENT_TYPE_DIALOG;
1480             else if (val[i] == OBT_PROP_ATOM(NET_WM_WINDOW_TYPE_NORMAL))
1481                 self->type = OB_CLIENT_TYPE_NORMAL;
1482             else if (val[i] == OBT_PROP_ATOM(KDE_NET_WM_WINDOW_TYPE_OVERRIDE))
1483             {
1484                 /* prevent this window from getting any decor or
1485                    functionality */
1486                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1487                                          OB_MWM_FLAG_DECORATIONS);
1488                 self->mwmhints.decorations = 0;
1489                 self->mwmhints.functions = 0;
1490             }
1491             if (self->type != (ObClientType) -1)
1492                 break; /* grab the first legit type */
1493         }
1494         g_free(val);
1495     }
1496
1497     if (XGetTransientForHint(obt_display, self->window, &t))
1498         self->transient = TRUE;
1499
1500     if (self->type == (ObClientType) -1) {
1501         /*the window type hint was not set, which means we either classify
1502           ourself as a normal window or a dialog, depending on if we are a
1503           transient. */
1504         if (self->transient)
1505             self->type = OB_CLIENT_TYPE_DIALOG;
1506         else
1507             self->type = OB_CLIENT_TYPE_NORMAL;
1508     }
1509
1510     /* then, based on our type, we can update our transientness.. */
1511     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1512         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1513         self->type == OB_CLIENT_TYPE_MENU ||
1514         self->type == OB_CLIENT_TYPE_UTILITY)
1515     {
1516         self->transient = TRUE;
1517     }
1518 }
1519
1520 void client_update_protocols(ObClient *self)
1521 {
1522     guint32 *proto;
1523     guint num_ret, i;
1524
1525     self->focus_notify = FALSE;
1526     self->delete_window = FALSE;
1527
1528     if (OBT_PROP_GETA32(self->window, WM_PROTOCOLS, ATOM, &proto, &num_ret)) {
1529         for (i = 0; i < num_ret; ++i) {
1530             if (proto[i] == OBT_PROP_ATOM(WM_DELETE_WINDOW))
1531                 /* this means we can request the window to close */
1532                 self->delete_window = TRUE;
1533             else if (proto[i] == OBT_PROP_ATOM(WM_TAKE_FOCUS))
1534                 /* if this protocol is requested, then the window will be
1535                    notified whenever we want it to receive focus */
1536                 self->focus_notify = TRUE;
1537             else if (proto[i] == OBT_PROP_ATOM(NET_WM_PING))
1538                 /* if this protocol is requested, then the window will allow
1539                    pings to determine if it is still alive */
1540                 self->ping = TRUE;
1541 #ifdef SYNC
1542             else if (proto[i] == OBT_PROP_ATOM(NET_WM_SYNC_REQUEST))
1543                 /* if this protocol is requested, then resizing the
1544                    window will be synchronized between the frame and the
1545                    client */
1546                 self->sync_request = TRUE;
1547 #endif
1548         }
1549         g_free(proto);
1550     }
1551 }
1552
1553 #ifdef SYNC
1554 void client_update_sync_request_counter(ObClient *self)
1555 {
1556     guint32 i;
1557
1558     if (OBT_PROP_GET32(self->window, NET_WM_SYNC_REQUEST_COUNTER, CARDINAL,&i))
1559     {
1560         XSyncValue val;
1561
1562         self->sync_counter = i;
1563
1564         /* this must be set when managing a new window according to EWMH */
1565         XSyncIntToValue(&val, 0);
1566         XSyncSetCounter(obt_display, self->sync_counter, val);
1567     } else
1568         self->sync_counter = None;
1569 }
1570 #endif
1571
1572 static void client_get_colormap(ObClient *self)
1573 {
1574     XWindowAttributes wa;
1575
1576     if (XGetWindowAttributes(obt_display, self->window, &wa))
1577         client_update_colormap(self, wa.colormap);
1578 }
1579
1580 void client_update_colormap(ObClient *self, Colormap colormap)
1581 {
1582     if (colormap == self->colormap) return;
1583
1584     ob_debug("Setting client %s colormap: 0x%x", self->title, colormap);
1585
1586     if (client_focused(self)) {
1587         screen_install_colormap(self, FALSE); /* uninstall old one */
1588         self->colormap = colormap;
1589         screen_install_colormap(self, TRUE); /* install new one */
1590     } else
1591         self->colormap = colormap;
1592 }
1593
1594 void client_update_normal_hints(ObClient *self)
1595 {
1596     XSizeHints size;
1597     glong ret;
1598
1599     /* defaults */
1600     self->min_ratio = 0.0f;
1601     self->max_ratio = 0.0f;
1602     SIZE_SET(self->size_inc, 1, 1);
1603     SIZE_SET(self->base_size, -1, -1);
1604     SIZE_SET(self->min_size, 0, 0);
1605     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1606
1607     /* get the hints from the window */
1608     if (XGetWMNormalHints(obt_display, self->window, &size, &ret)) {
1609         /* normal windows can't request placement! har har
1610         if (!client_normal(self))
1611         */
1612         self->positioned = (size.flags & (PPosition|USPosition));
1613         self->sized = (size.flags & (PSize|USSize));
1614
1615         if (size.flags & PWinGravity)
1616             self->gravity = size.win_gravity;
1617
1618         if (size.flags & PAspect) {
1619             if (size.min_aspect.y)
1620                 self->min_ratio =
1621                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1622             if (size.max_aspect.y)
1623                 self->max_ratio =
1624                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1625         }
1626
1627         if (size.flags & PMinSize)
1628             SIZE_SET(self->min_size, size.min_width, size.min_height);
1629
1630         if (size.flags & PMaxSize)
1631             SIZE_SET(self->max_size, size.max_width, size.max_height);
1632
1633         if (size.flags & PBaseSize)
1634             SIZE_SET(self->base_size, size.base_width, size.base_height);
1635
1636         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1637             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1638
1639         ob_debug("Normal hints: min size (%d %d) max size (%d %d)",
1640                  self->min_size.width, self->min_size.height,
1641                  self->max_size.width, self->max_size.height);
1642         ob_debug("size inc (%d %d) base size (%d %d)",
1643                  self->size_inc.width, self->size_inc.height,
1644                  self->base_size.width, self->base_size.height);
1645     }
1646     else
1647         ob_debug("Normal hints: not set");
1648 }
1649
1650 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1651 {
1652     /* start with everything (cept fullscreen) */
1653     self->decorations =
1654         (OB_FRAME_DECOR_TITLEBAR |
1655          OB_FRAME_DECOR_HANDLE |
1656          OB_FRAME_DECOR_GRIPS |
1657          OB_FRAME_DECOR_BORDER |
1658          OB_FRAME_DECOR_ICON |
1659          OB_FRAME_DECOR_ALLDESKTOPS |
1660          OB_FRAME_DECOR_ICONIFY |
1661          OB_FRAME_DECOR_MAXIMIZE |
1662          OB_FRAME_DECOR_SHADE |
1663          OB_FRAME_DECOR_CLOSE);
1664     self->functions =
1665         (OB_CLIENT_FUNC_RESIZE |
1666          OB_CLIENT_FUNC_MOVE |
1667          OB_CLIENT_FUNC_ICONIFY |
1668          OB_CLIENT_FUNC_MAXIMIZE |
1669          OB_CLIENT_FUNC_SHADE |
1670          OB_CLIENT_FUNC_CLOSE |
1671          OB_CLIENT_FUNC_BELOW |
1672          OB_CLIENT_FUNC_ABOVE |
1673          OB_CLIENT_FUNC_UNDECORATE);
1674
1675     if (!(self->min_size.width < self->max_size.width ||
1676           self->min_size.height < self->max_size.height))
1677         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1678
1679     switch (self->type) {
1680     case OB_CLIENT_TYPE_NORMAL:
1681         /* normal windows retain all of the possible decorations and
1682            functionality, and can be fullscreen */
1683         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1684         break;
1685
1686     case OB_CLIENT_TYPE_DIALOG:
1687         /* sometimes apps make dialog windows fullscreen for some reason (for
1688            e.g. kpdf does this..) */
1689         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1690         break;
1691
1692     case OB_CLIENT_TYPE_UTILITY:
1693         /* these windows don't have anything added or removed by default */
1694         break;
1695
1696     case OB_CLIENT_TYPE_MENU:
1697     case OB_CLIENT_TYPE_TOOLBAR:
1698         /* these windows can't iconify or maximize */
1699         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1700                                OB_FRAME_DECOR_MAXIMIZE);
1701         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1702                              OB_CLIENT_FUNC_MAXIMIZE);
1703         break;
1704
1705     case OB_CLIENT_TYPE_SPLASH:
1706         /* these don't get get any decorations, and the only thing you can
1707            do with them is move them */
1708         self->decorations = 0;
1709         self->functions = OB_CLIENT_FUNC_MOVE;
1710         break;
1711
1712     case OB_CLIENT_TYPE_DESKTOP:
1713         /* these windows are not manipulated by the window manager */
1714         self->decorations = 0;
1715         self->functions = 0;
1716         break;
1717
1718     case OB_CLIENT_TYPE_DOCK:
1719         /* these windows are not manipulated by the window manager, but they
1720            can set below layer which has a special meaning */
1721         self->decorations = 0;
1722         self->functions = OB_CLIENT_FUNC_BELOW;
1723         break;
1724     }
1725
1726     /* Mwm Hints are applied subtractively to what has already been chosen for
1727        decor and functionality */
1728     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1729         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1730             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1731                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1732             {
1733                 /* if the mwm hints request no handle or title, then all
1734                    decorations are disabled, but keep the border if that's
1735                    specified */
1736                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1737                     self->decorations = OB_FRAME_DECOR_BORDER;
1738                 else
1739                     self->decorations = 0;
1740             }
1741         }
1742     }
1743
1744     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1745         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1746             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1747                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1748             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1749                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1750             /* dont let mwm hints kill any buttons
1751                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1752                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1753                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1754                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1755             */
1756             /* dont let mwm hints kill the close button
1757                if (! (self->mwmhints.functions & MwmFunc_Close))
1758                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1759         }
1760     }
1761
1762     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1763         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1764     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1765         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1766     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1767         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1768
1769     /* can't maximize without moving/resizing */
1770     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1771           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1772           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1773         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1774         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1775     }
1776
1777     if (self->max_horz && self->max_vert) {
1778         /* once upon a time you couldn't resize maximized windows, that is not
1779            the case any more though !
1780
1781            but do kill the handle on fully maxed windows */
1782         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1783     }
1784
1785     /* If there are no decorations to remove, don't allow the user to try
1786        toggle the state */
1787     if (self->decorations == 0)
1788         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1789
1790     /* finally, the user can have requested no decorations, which overrides
1791        everything (but doesnt give it a border if it doesnt have one) */
1792     if (self->undecorated)
1793         self->decorations &= (config_theme_keepborder ?
1794                               OB_FRAME_DECOR_BORDER : 0);
1795
1796     /* if we don't have a titlebar, then we cannot shade! */
1797     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1798         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1799
1800     /* now we need to check against rules for the client's current state */
1801     if (self->fullscreen) {
1802         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1803                             OB_CLIENT_FUNC_FULLSCREEN |
1804                             OB_CLIENT_FUNC_ICONIFY);
1805         self->decorations = 0;
1806     }
1807
1808     client_change_allowed_actions(self);
1809
1810     if (reconfig)
1811         /* reconfigure to make sure decorations are updated */
1812         client_reconfigure(self, FALSE);
1813 }
1814
1815 static void client_change_allowed_actions(ObClient *self)
1816 {
1817     gulong actions[12];
1818     gint num = 0;
1819
1820     /* desktop windows are kept on all desktops */
1821     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1822         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_CHANGE_DESKTOP);
1823
1824     if (self->functions & OB_CLIENT_FUNC_SHADE)
1825         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_SHADE);
1826     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1827         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_CLOSE);
1828     if (self->functions & OB_CLIENT_FUNC_MOVE)
1829         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MOVE);
1830     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1831         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MINIMIZE);
1832     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1833         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_RESIZE);
1834     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1835         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_FULLSCREEN);
1836     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1837         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_HORZ);
1838         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_MAXIMIZE_VERT);
1839     }
1840     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1841         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_ABOVE);
1842     if (self->functions & OB_CLIENT_FUNC_BELOW)
1843         actions[num++] = OBT_PROP_ATOM(NET_WM_ACTION_BELOW);
1844     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1845         actions[num++] = OBT_PROP_ATOM(OB_WM_ACTION_UNDECORATE);
1846
1847     OBT_PROP_SETA32(self->window, NET_WM_ALLOWED_ACTIONS, ATOM, actions, num);
1848
1849     /* make sure the window isn't breaking any rules now
1850
1851        don't check ICONIFY here.  just cuz a window can't iconify doesnt mean
1852        it can't be iconified with its parent
1853     */
1854
1855     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1856         if (self->frame) client_shade(self, FALSE);
1857         else self->shaded = FALSE;
1858     }
1859     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1860         if (self->frame) client_fullscreen(self, FALSE);
1861         else self->fullscreen = FALSE;
1862     }
1863     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1864                                                          self->max_vert)) {
1865         if (self->frame) client_maximize(self, FALSE, 0);
1866         else self->max_vert = self->max_horz = FALSE;
1867     }
1868 }
1869
1870 void client_update_wmhints(ObClient *self)
1871 {
1872     XWMHints *hints;
1873
1874     /* assume a window takes input if it doesn't specify */
1875     self->can_focus = TRUE;
1876
1877     if ((hints = XGetWMHints(obt_display, self->window)) != NULL) {
1878         gboolean ur;
1879
1880         if (hints->flags & InputHint)
1881             self->can_focus = hints->input;
1882
1883         /* only do this when first managing the window *AND* when we aren't
1884            starting up! */
1885         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1886             if (hints->flags & StateHint)
1887                 self->iconic = hints->initial_state == IconicState;
1888
1889         ur = self->urgent;
1890         self->urgent = (hints->flags & XUrgencyHint);
1891         if (self->urgent && !ur)
1892             client_hilite(self, TRUE);
1893         else if (!self->urgent && ur && self->demands_attention)
1894             client_hilite(self, FALSE);
1895
1896         if (!(hints->flags & WindowGroupHint))
1897             hints->window_group = None;
1898
1899         /* did the group state change? */
1900         if (hints->window_group !=
1901             (self->group ? self->group->leader : None))
1902         {
1903             ObGroup *oldgroup = self->group;
1904
1905             /* remove from the old group if there was one */
1906             if (self->group) {
1907                 group_remove(self->group, self);
1908                 self->group = NULL;
1909             }
1910
1911             /* add ourself to the group if we have one */
1912             if (hints->window_group != None) {
1913                 self->group = group_add(hints->window_group, self);
1914             }
1915
1916             /* Put ourselves into the new group's transient tree, and remove
1917                ourselves from the old group's */
1918             client_update_transient_tree(self, oldgroup, self->group,
1919                                          self->transient_for_group,
1920                                          self->transient_for_group,
1921                                          client_direct_parent(self),
1922                                          client_direct_parent(self));
1923
1924             /* Lastly, being in a group, or not, can change if the window is
1925                transient for anything.
1926
1927                The logic for this is:
1928                self->transient = TRUE always if the window wants to be
1929                transient for something, even if transient_for was NULL because
1930                it wasn't in a group before.
1931
1932                If parents was NULL and oldgroup was NULL we can assume
1933                that when we add the new group, it will become transient for
1934                something.
1935
1936                If transient_for_group is TRUE, then it must have already
1937                had a group. If it is getting a new group, the above call to
1938                client_update_transient_tree has already taken care of
1939                everything ! If it is losing all group status then it will
1940                no longer be transient for anything and that needs to be
1941                updated.
1942             */
1943             if (self->transient &&
1944                 ((self->parents == NULL && oldgroup == NULL) ||
1945                  (self->transient_for_group && !self->group)))
1946                 client_update_transient_for(self);
1947         }
1948
1949         /* the WM_HINTS can contain an icon */
1950         if (hints->flags & IconPixmapHint)
1951             client_update_icons(self);
1952
1953         XFree(hints);
1954     }
1955
1956     focus_cycle_addremove(self, TRUE);
1957 }
1958
1959 void client_update_title(ObClient *self)
1960 {
1961     gchar *data = NULL;
1962     gchar *visible = NULL;
1963
1964     g_free(self->title);
1965     g_free(self->original_title);
1966
1967     /* try netwm */
1968     if (!OBT_PROP_GETS(self->window, NET_WM_NAME, utf8, &data)) {
1969         /* try old x stuff */
1970         if (!(OBT_PROP_GETS(self->window, WM_NAME, locale, &data)
1971               || OBT_PROP_GETS(self->window, WM_NAME, utf8, &data))) {
1972             if (self->transient) {
1973     /*
1974     GNOME alert windows are not given titles:
1975     http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
1976     */
1977                 data = g_strdup("");
1978             } else
1979                 data = g_strdup(_("Unnamed Window"));
1980         }
1981     }
1982     self->original_title = g_strdup(data);
1983
1984     if (self->client_machine) {
1985         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
1986         g_free(data);
1987     } else
1988         visible = data;
1989
1990     if (self->not_responding) {
1991         data = visible;
1992         if (self->kill_level > 0)
1993             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
1994         else
1995             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
1996         g_free(data);
1997     }
1998
1999     OBT_PROP_SETS(self->window, NET_WM_VISIBLE_NAME, utf8, visible);
2000     self->title = visible;
2001
2002     if (self->frame)
2003         frame_adjust_title(self->frame);
2004
2005     /* update the icon title */
2006     data = NULL;
2007     g_free(self->icon_title);
2008
2009     /* try netwm */
2010     if (!OBT_PROP_GETS(self->window, NET_WM_ICON_NAME, utf8, &data))
2011         /* try old x stuff */
2012         if (!(OBT_PROP_GETS(self->window, WM_ICON_NAME, locale, &data) ||
2013               OBT_PROP_GETS(self->window, WM_ICON_NAME, utf8, &data)))
2014             data = g_strdup(self->title);
2015
2016     if (self->client_machine) {
2017         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
2018         g_free(data);
2019     } else
2020         visible = data;
2021
2022     if (self->not_responding) {
2023         data = visible;
2024         if (self->kill_level > 0)
2025             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
2026         else
2027             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
2028         g_free(data);
2029     }
2030
2031     OBT_PROP_SETS(self->window, NET_WM_VISIBLE_ICON_NAME, utf8, visible);
2032     self->icon_title = visible;
2033 }
2034
2035 void client_update_strut(ObClient *self)
2036 {
2037     guint num;
2038     guint32 *data;
2039     gboolean got = FALSE;
2040     StrutPartial strut;
2041
2042     if (OBT_PROP_GETA32(self->window, NET_WM_STRUT_PARTIAL, CARDINAL,
2043                         &data, &num))
2044     {
2045         if (num == 12) {
2046             got = TRUE;
2047             STRUT_PARTIAL_SET(strut,
2048                               data[0], data[2], data[1], data[3],
2049                               data[4], data[5], data[8], data[9],
2050                               data[6], data[7], data[10], data[11]);
2051         }
2052         g_free(data);
2053     }
2054
2055     if (!got &&
2056         OBT_PROP_GETA32(self->window, NET_WM_STRUT, CARDINAL, &data, &num)) {
2057         if (num == 4) {
2058             const Rect *a;
2059
2060             got = TRUE;
2061
2062             /* use the screen's width/height */
2063             a = screen_physical_area_all_monitors();
2064
2065             STRUT_PARTIAL_SET(strut,
2066                               data[0], data[2], data[1], data[3],
2067                               a->y, a->y + a->height - 1,
2068                               a->x, a->x + a->width - 1,
2069                               a->y, a->y + a->height - 1,
2070                               a->x, a->x + a->width - 1);
2071         }
2072         g_free(data);
2073     }
2074
2075     if (!got)
2076         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2077                           0, 0, 0, 0, 0, 0, 0, 0);
2078
2079     if (!PARTIAL_STRUT_EQUAL(strut, self->strut)) {
2080         self->strut = strut;
2081
2082         /* updating here is pointless while we're being mapped cuz we're not in
2083            the client list yet */
2084         if (self->frame)
2085             screen_update_areas();
2086     }
2087 }
2088
2089 void client_update_icons(ObClient *self)
2090 {
2091     guint num;
2092     guint32 *data;
2093     guint w, h, i, j;
2094     guint num_seen;  /* number of icons present */
2095     RrImage *img;
2096
2097     img = NULL;
2098
2099     /* grab the server, because we might be setting the window's icon and
2100        we don't want them to set it in between and we overwrite their own
2101        icon */
2102     grab_server(TRUE);
2103
2104     if (OBT_PROP_GETA32(self->window, NET_WM_ICON, CARDINAL, &data, &num)) {
2105         /* figure out how many valid icons are in here */
2106         i = 0;
2107         num_seen = 0;
2108         while (i + 2 < num) { /* +2 is to make sure there is a w and h */
2109             w = data[i++];
2110             h = data[i++];
2111             /* watch for the data being too small for the specified size,
2112                or for zero sized icons. */
2113             if (i + w*h > num || w == 0 || h == 0) break;
2114
2115             /* convert it to the right bit order for ObRender */
2116             for (j = 0; j < w*h; ++j)
2117                 data[i+j] =
2118                     (((data[i+j] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2119                     (((data[i+j] >> 16) & 0xff) << RrDefaultRedOffset)   +
2120                     (((data[i+j] >>  8) & 0xff) << RrDefaultGreenOffset) +
2121                     (((data[i+j] >>  0) & 0xff) << RrDefaultBlueOffset);
2122
2123             /* is it in the cache? */
2124             img = RrImageCacheFind(ob_rr_icons, &data[i], w, h);
2125             if (img) RrImageRef(img); /* own it */
2126
2127             i += w*h;
2128             ++num_seen;
2129
2130             /* don't bother looping anymore if we already found it in the cache
2131                since we'll just use that! */
2132             if (img) break;
2133         }
2134
2135         /* if it's not in the cache yet, then add it to the cache now.
2136            we have already converted it to the correct bit order above */
2137         if (!img && num_seen > 0) {
2138             img = RrImageNew(ob_rr_icons);
2139             i = 0;
2140             for (j = 0; j < num_seen; ++j) {
2141                 w = data[i++];
2142                 h = data[i++];
2143                 RrImageAddPicture(img, &data[i], w, h);
2144                 i += w*h;
2145             }
2146         }
2147
2148         g_free(data);
2149     }
2150
2151     /* if we didn't find an image from the NET_WM_ICON stuff, then try the
2152        legacy X hints */
2153     if (!img) {
2154         XWMHints *hints;
2155
2156         if ((hints = XGetWMHints(obt_display, self->window))) {
2157             if (hints->flags & IconPixmapHint) {
2158                 gboolean xicon;
2159                 obt_display_ignore_errors(TRUE);
2160                 xicon = RrPixmapToRGBA(ob_rr_inst,
2161                                        hints->icon_pixmap,
2162                                        (hints->flags & IconMaskHint ?
2163                                         hints->icon_mask : None),
2164                                        (gint*)&w, (gint*)&h, &data);
2165                 obt_display_ignore_errors(FALSE);
2166
2167                 if (xicon) {
2168                     if (w > 0 && h > 0) {
2169                         /* is this icon in the cache yet? */
2170                         img = RrImageCacheFind(ob_rr_icons, data, w, h);
2171                         if (img) RrImageRef(img); /* own it */
2172
2173                         /* if not, then add it */
2174                         if (!img) {
2175                             img = RrImageNew(ob_rr_icons);
2176                             RrImageAddPicture(img, data, w, h);
2177                         }
2178                     }
2179
2180                     g_free(data);
2181                 }
2182             }
2183             XFree(hints);
2184         }
2185     }
2186
2187     /* set the client's icons to be whatever we found */
2188     RrImageUnref(self->icon_set);
2189     self->icon_set = img;
2190
2191     /* if the client has no icon at all, then we set a default icon onto it.
2192        but, if it has parents, then one of them will have an icon already
2193     */
2194     if (!self->icon_set && !self->parents) {
2195         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2196         gulong *ldata; /* use a long here to satisfy OBT_PROP_SETA32 */
2197
2198         w = ob_rr_theme->def_win_icon_w;
2199         h = ob_rr_theme->def_win_icon_h;
2200         ldata = g_new(gulong, w*h+2);
2201         ldata[0] = w;
2202         ldata[1] = h;
2203         for (i = 0; i < w*h; ++i)
2204             ldata[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2205                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2206                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2207                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2208         OBT_PROP_SETA32(self->window, NET_WM_ICON, CARDINAL, ldata, w*h+2);
2209         g_free(ldata);
2210     } else if (self->frame)
2211         /* don't draw the icon empty if we're just setting one now anyways,
2212            we'll get the property change any second */
2213         frame_adjust_icon(self->frame);
2214
2215     grab_server(FALSE);
2216 }
2217
2218 void client_update_icon_geometry(ObClient *self)
2219 {
2220     guint num;
2221     guint32 *data;
2222
2223     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2224
2225     if (OBT_PROP_GETA32(self->window, NET_WM_ICON_GEOMETRY, CARDINAL,
2226                         &data, &num))
2227     {
2228         if (num == 4)
2229             /* don't let them set it with an area < 0 */
2230             RECT_SET(self->icon_geometry, data[0], data[1],
2231                      MAX(data[2],0), MAX(data[3],0));
2232         g_free(data);
2233     }
2234 }
2235
2236 static void client_get_session_ids(ObClient *self)
2237 {
2238     guint32 leader;
2239     gboolean got;
2240     gchar *s;
2241     gchar **ss;
2242
2243     if (!OBT_PROP_GET32(self->window, WM_CLIENT_LEADER, WINDOW, &leader))
2244         leader = None;
2245
2246     /* get the SM_CLIENT_ID */
2247     got = FALSE;
2248     if (leader)
2249         got = OBT_PROP_GETS(leader, SM_CLIENT_ID, locale, &self->sm_client_id);
2250     if (!got)
2251         OBT_PROP_GETS(self->window, SM_CLIENT_ID, locale, &self->sm_client_id);
2252
2253     /* get the WM_CLASS (name and class). make them "" if they are not
2254        provided */
2255     got = FALSE;
2256     if (leader)
2257         got = OBT_PROP_GETSS(leader, WM_CLASS, locale, &ss);
2258     if (!got)
2259         got = OBT_PROP_GETSS(self->window, WM_CLASS, locale, &ss);
2260
2261     if (got) {
2262         if (ss[0]) {
2263             self->name = g_strdup(ss[0]);
2264             if (ss[1])
2265                 self->class = g_strdup(ss[1]);
2266         }
2267         g_strfreev(ss);
2268     }
2269
2270     if (self->name == NULL) self->name = g_strdup("");
2271     if (self->class == NULL) self->class = g_strdup("");
2272
2273     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2274     got = FALSE;
2275     if (leader)
2276         got = OBT_PROP_GETS(leader, WM_WINDOW_ROLE, locale, &s);
2277     if (!got)
2278         got = OBT_PROP_GETS(self->window, WM_WINDOW_ROLE, locale, &s);
2279
2280     if (got)
2281         self->role = s;
2282     else
2283         self->role = g_strdup("");
2284
2285     /* get the WM_COMMAND */
2286     got = FALSE;
2287
2288     if (leader)
2289         got = OBT_PROP_GETSS(leader, WM_COMMAND, locale, &ss);
2290     if (!got)
2291         got = OBT_PROP_GETSS(self->window, WM_COMMAND, locale, &ss);
2292
2293     if (got) {
2294         /* merge/mash them all together */
2295         gchar *merge = NULL;
2296         gint i;
2297
2298         for (i = 0; ss[i]; ++i) {
2299             gchar *tmp = merge;
2300             if (merge)
2301                 merge = g_strconcat(merge, ss[i], NULL);
2302             else
2303                 merge = g_strconcat(ss[i], NULL);
2304             g_free(tmp);
2305         }
2306         g_strfreev(ss);
2307
2308         self->wm_command = merge;
2309     }
2310
2311     /* get the WM_CLIENT_MACHINE */
2312     got = FALSE;
2313     if (leader)
2314         got = OBT_PROP_GETS(leader, WM_CLIENT_MACHINE, locale, &s);
2315     if (!got)
2316         got = OBT_PROP_GETS(self->window, WM_CLIENT_MACHINE, locale, &s);
2317
2318     if (got) {
2319         gchar localhost[128];
2320         guint32 pid;
2321
2322         gethostname(localhost, 127);
2323         localhost[127] = '\0';
2324         if (strcmp(localhost, s) != 0)
2325             self->client_machine = s;
2326         else
2327             g_free(s);
2328
2329         /* see if it has the PID set too (the PID requires that the
2330            WM_CLIENT_MACHINE be set) */
2331         if (OBT_PROP_GET32(self->window, NET_WM_PID, CARDINAL, &pid))
2332             self->pid = pid;
2333     }
2334 }
2335
2336 /*! Save the properties used for app matching rules, as seen by Openbox when
2337   the window mapped, so that users can still access them later if the app
2338   changes them */
2339 static void client_save_app_rule_values(ObClient *self)
2340 {
2341     const gchar *type;
2342
2343     OBT_PROP_SETS(self->window, OB_APP_ROLE, utf8, self->role);
2344     OBT_PROP_SETS(self->window, OB_APP_NAME, utf8, self->name);
2345     OBT_PROP_SETS(self->window, OB_APP_CLASS, utf8, self->class);
2346     OBT_PROP_SETS(self->window, OB_APP_TITLE, utf8, self->original_title);
2347
2348     switch (self->type) {
2349     case OB_CLIENT_TYPE_NORMAL:
2350         type = "normal"; break;
2351     case OB_CLIENT_TYPE_DIALOG:
2352         type = "dialog"; break;
2353     case OB_CLIENT_TYPE_UTILITY:
2354         type = "utility"; break;
2355     case OB_CLIENT_TYPE_MENU:
2356         type = "menu"; break;
2357     case OB_CLIENT_TYPE_TOOLBAR:
2358         type = "toolbar"; break;
2359     case OB_CLIENT_TYPE_SPLASH:
2360         type = "splash"; break;
2361     case OB_CLIENT_TYPE_DESKTOP:
2362         type = "desktop"; break;
2363     case OB_CLIENT_TYPE_DOCK:
2364         type = "dock"; break;
2365     }
2366     OBT_PROP_SETS(self->window, OB_APP_TYPE, utf8, type);
2367 }
2368
2369 static void client_change_wm_state(ObClient *self)
2370 {
2371     gulong state[2];
2372     glong old;
2373
2374     old = self->wmstate;
2375
2376     if (self->shaded || self->iconic ||
2377         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2378     {
2379         self->wmstate = IconicState;
2380     } else
2381         self->wmstate = NormalState;
2382
2383     if (old != self->wmstate) {
2384         OBT_PROP_MSG(ob_screen, self->window, KDE_WM_CHANGE_STATE,
2385                      self->wmstate, 1, 0, 0, 0);
2386
2387         state[0] = self->wmstate;
2388         state[1] = None;
2389         OBT_PROP_SETA32(self->window, WM_STATE, WM_STATE, state, 2);
2390     }
2391 }
2392
2393 static void client_change_state(ObClient *self)
2394 {
2395     gulong netstate[12];
2396     guint num;
2397
2398     num = 0;
2399     if (self->modal)
2400         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_MODAL);
2401     if (self->shaded)
2402         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_SHADED);
2403     if (self->iconic)
2404         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_HIDDEN);
2405     if (self->skip_taskbar)
2406         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR);
2407     if (self->skip_pager)
2408         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER);
2409     if (self->fullscreen)
2410         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN);
2411     if (self->max_vert)
2412         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT);
2413     if (self->max_horz)
2414         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ);
2415     if (self->above)
2416         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_ABOVE);
2417     if (self->below)
2418         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_BELOW);
2419     if (self->demands_attention)
2420         netstate[num++] = OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION);
2421     if (self->undecorated)
2422         netstate[num++] = OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED);
2423     OBT_PROP_SETA32(self->window, NET_WM_STATE, ATOM, netstate, num);
2424
2425     if (self->frame)
2426         frame_adjust_state(self->frame);
2427 }
2428
2429 ObClient *client_search_focus_tree(ObClient *self)
2430 {
2431     GSList *it;
2432     ObClient *ret;
2433
2434     for (it = self->transients; it; it = g_slist_next(it)) {
2435         if (client_focused(it->data)) return it->data;
2436         if ((ret = client_search_focus_tree(it->data))) return ret;
2437     }
2438     return NULL;
2439 }
2440
2441 ObClient *client_search_focus_tree_full(ObClient *self)
2442 {
2443     if (self->parents) {
2444         GSList *it;
2445
2446         for (it = self->parents; it; it = g_slist_next(it)) {
2447             ObClient *c = it->data;
2448             if ((c = client_search_focus_tree_full(c))) return c;
2449         }
2450
2451         return NULL;
2452     }
2453     else {
2454         /* this function checks the whole tree, the client_search_focus_tree
2455            does not, so we need to check this window */
2456         if (client_focused(self))
2457             return self;
2458         return client_search_focus_tree(self);
2459     }
2460 }
2461
2462 ObClient *client_search_focus_group_full(ObClient *self)
2463 {
2464     GSList *it;
2465
2466     if (self->group) {
2467         for (it = self->group->members; it; it = g_slist_next(it)) {
2468             ObClient *c = it->data;
2469
2470             if (client_focused(c)) return c;
2471             if ((c = client_search_focus_tree(it->data))) return c;
2472         }
2473     } else
2474         if (client_focused(self)) return self;
2475     return NULL;
2476 }
2477
2478 gboolean client_has_parent(ObClient *self)
2479 {
2480     return self->parents != NULL;
2481 }
2482
2483 gboolean client_is_oldfullscreen(const ObClient *self,
2484                                  const Rect *area)
2485 {
2486     const Rect *monitor, *allmonitors;
2487
2488     /* No decorations and fills the monitor = oldskool fullscreen.
2489        But not for maximized windows.
2490     */
2491
2492     if (self->decorations || self->max_horz || self->max_vert) return FALSE;
2493
2494     monitor = screen_physical_area_monitor(screen_find_monitor(area));
2495     allmonitors = screen_physical_area_all_monitors();
2496
2497     return (RECT_EQUAL(*area, *monitor) ||
2498             RECT_EQUAL(*area, *allmonitors));
2499 }
2500
2501 static ObStackingLayer calc_layer(ObClient *self)
2502 {
2503     ObStackingLayer l;
2504
2505     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2506         l = OB_STACKING_LAYER_DESKTOP;
2507     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2508         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2509         else l = OB_STACKING_LAYER_ABOVE;
2510     }
2511     else if ((self->fullscreen ||
2512               client_is_oldfullscreen(self, &self->area)) &&
2513              /* you are fullscreen while you or your children are focused.. */
2514              (client_focused(self) || client_search_focus_tree(self) ||
2515               /* you can be fullscreen if you're on another desktop */
2516               (self->desktop != screen_desktop &&
2517                self->desktop != DESKTOP_ALL) ||
2518               /* and you can also be fullscreen if the focused client is on
2519                  another monitor, or nothing else is focused */
2520               (!focus_client ||
2521                client_monitor(focus_client) != client_monitor(self))))
2522         l = OB_STACKING_LAYER_FULLSCREEN;
2523     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2524     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2525     else l = OB_STACKING_LAYER_NORMAL;
2526
2527     return l;
2528 }
2529
2530 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2531                                         ObStackingLayer min)
2532 {
2533     ObStackingLayer old, own;
2534     GSList *it;
2535
2536     old = self->layer;
2537     own = calc_layer(self);
2538     self->layer = MAX(own, min);
2539
2540     if (self->layer != old) {
2541         stacking_remove(CLIENT_AS_WINDOW(self));
2542         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2543     }
2544
2545     /* we've been restacked */
2546     self->visited = TRUE;
2547
2548     for (it = self->transients; it; it = g_slist_next(it))
2549         client_calc_layer_recursive(it->data, orig,
2550                                     self->layer);
2551 }
2552
2553 static void client_calc_layer_internal(ObClient *self)
2554 {
2555     GSList *sit;
2556
2557     /* transients take on the layer of their parents */
2558     sit = client_search_all_top_parents(self);
2559
2560     for (; sit; sit = g_slist_next(sit))
2561         client_calc_layer_recursive(sit->data, self, 0);
2562 }
2563
2564 void client_calc_layer(ObClient *self)
2565 {
2566     GList *it;
2567
2568     /* skip over stuff above fullscreen layer */
2569     for (it = stacking_list; it; it = g_list_next(it))
2570         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2571
2572     /* find the windows in the fullscreen layer, and mark them not-visited */
2573     for (; it; it = g_list_next(it)) {
2574         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2575         else if (WINDOW_IS_CLIENT(it->data))
2576             WINDOW_AS_CLIENT(it->data)->visited = FALSE;
2577     }
2578
2579     client_calc_layer_internal(self);
2580
2581     /* skip over stuff above fullscreen layer */
2582     for (it = stacking_list; it; it = g_list_next(it))
2583         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2584
2585     /* now recalc any windows in the fullscreen layer which have not
2586        had their layer recalced already */
2587     for (; it; it = g_list_next(it)) {
2588         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2589         else if (WINDOW_IS_CLIENT(it->data) &&
2590                  !WINDOW_AS_CLIENT(it->data)->visited)
2591             client_calc_layer_internal(it->data);
2592     }
2593 }
2594
2595 gboolean client_should_show(ObClient *self)
2596 {
2597     if (self->iconic)
2598         return FALSE;
2599     if (client_normal(self) && screen_showing_desktop)
2600         return FALSE;
2601     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2602         return TRUE;
2603
2604     return FALSE;
2605 }
2606
2607 gboolean client_show(ObClient *self)
2608 {
2609     gboolean show = FALSE;
2610
2611     if (client_should_show(self)) {
2612         /* replay pending pointer event before showing the window, in case it
2613            should be going to something under the window */
2614         mouse_replay_pointer();
2615
2616         frame_show(self->frame);
2617         show = TRUE;
2618
2619         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2620            it needs to be in IconicState. This includes when it is on another
2621            desktop!
2622         */
2623         client_change_wm_state(self);
2624     }
2625     return show;
2626 }
2627
2628 gboolean client_hide(ObClient *self)
2629 {
2630     gboolean hide = FALSE;
2631
2632     if (!client_should_show(self)) {
2633         /* We don't need to ignore enter events here.
2634            The window can hide/iconify in 3 different ways:
2635            1 - through an x message. in this case we ignore all enter events
2636                caused by responding to the x message (unless underMouse)
2637            2 - by a keyboard action. in this case we ignore all enter events
2638                caused by the action
2639            3 - by a mouse action. in this case they are doing stuff with the
2640                mouse and focus _should_ move.
2641
2642            Also in action_end, we simulate an enter event that can't be ignored
2643            so trying to ignore them is futile in case 3 anyways
2644         */
2645
2646         /* replay pending pointer event before hiding the window, in case it
2647            should be going to the window */
2648         mouse_replay_pointer();
2649
2650         frame_hide(self->frame);
2651         hide = TRUE;
2652
2653         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2654            it needs to be in IconicState. This includes when it is on another
2655            desktop!
2656         */
2657         client_change_wm_state(self);
2658     }
2659     return hide;
2660 }
2661
2662 void client_showhide(ObClient *self)
2663 {
2664     if (!client_show(self))
2665         client_hide(self);
2666 }
2667
2668 gboolean client_normal(ObClient *self) {
2669     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2670               self->type == OB_CLIENT_TYPE_DOCK ||
2671               self->type == OB_CLIENT_TYPE_SPLASH);
2672 }
2673
2674 gboolean client_helper(ObClient *self)
2675 {
2676     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2677             self->type == OB_CLIENT_TYPE_MENU ||
2678             self->type == OB_CLIENT_TYPE_TOOLBAR);
2679 }
2680
2681 gboolean client_mouse_focusable(ObClient *self)
2682 {
2683     return !(self->type == OB_CLIENT_TYPE_MENU ||
2684              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2685              self->type == OB_CLIENT_TYPE_SPLASH ||
2686              self->type == OB_CLIENT_TYPE_DOCK);
2687 }
2688
2689 gboolean client_enter_focusable(ObClient *self)
2690 {
2691     /* you can focus desktops but it shouldn't on enter */
2692     return (client_mouse_focusable(self) &&
2693             self->type != OB_CLIENT_TYPE_DESKTOP);
2694 }
2695
2696 static void client_apply_startup_state(ObClient *self,
2697                                        gint x, gint y, gint w, gint h)
2698 {
2699     /* save the states that we are going to apply */
2700     gboolean iconic = self->iconic;
2701     gboolean fullscreen = self->fullscreen;
2702     gboolean undecorated = self->undecorated;
2703     gboolean shaded = self->shaded;
2704     gboolean demands_attention = self->demands_attention;
2705     gboolean max_horz = self->max_horz;
2706     gboolean max_vert = self->max_vert;
2707     Rect oldarea;
2708     gint l;
2709
2710     /* turn them all off in the client, so they won't affect the window
2711        being placed */
2712     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2713         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2714
2715     /* move the client to its placed position, or it it's already there,
2716        generate a ConfigureNotify telling the client where it is.
2717
2718        do this after adjusting the frame. otherwise it gets all weird and
2719        clients don't work right
2720
2721        do this before applying the states so they have the correct
2722        pre-max/pre-fullscreen values
2723     */
2724     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2725     ob_debug("placed window 0x%x at %d, %d with size %d x %d",
2726              self->window, x, y, w, h);
2727     /* save the area, and make it where it should be for the premax stuff */
2728     oldarea = self->area;
2729     RECT_SET(self->area, x, y, w, h);
2730
2731     /* apply the states. these are in a carefully crafted order.. */
2732
2733     if (iconic)
2734         client_iconify(self, TRUE, FALSE, TRUE);
2735     if (fullscreen)
2736         client_fullscreen(self, TRUE);
2737     if (undecorated)
2738         client_set_undecorated(self, TRUE);
2739     if (shaded)
2740         client_shade(self, TRUE);
2741     if (demands_attention)
2742         client_hilite(self, TRUE);
2743
2744     if (max_vert && max_horz)
2745         client_maximize(self, TRUE, 0);
2746     else if (max_vert)
2747         client_maximize(self, TRUE, 2);
2748     else if (max_horz)
2749         client_maximize(self, TRUE, 1);
2750
2751     /* if the window hasn't been configured yet, then do so now, in fact the
2752        x,y,w,h may _not_ be the same as the area rect, which can end up
2753        meaning that the client isn't properly moved/resized by the fullscreen
2754        function
2755        pho can cause this because it maps at size of the screen but not 0,0
2756        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2757        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2758        cuz thats where the pre-fullscreen will be. however the actual area is
2759        not, so this needs to be called even if we have fullscreened/maxed
2760     */
2761     self->area = oldarea;
2762     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2763
2764     /* set the desktop hint, to make sure that it always exists */
2765     OBT_PROP_SET32(self->window, NET_WM_DESKTOP, CARDINAL, self->desktop);
2766
2767     /* nothing to do for the other states:
2768        skip_taskbar
2769        skip_pager
2770        modal
2771        above
2772        below
2773     */
2774 }
2775
2776 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2777 {
2778     /* these should be the current values. this is for when you're not moving,
2779        just resizing */
2780     g_assert(*x == self->area.x);
2781     g_assert(oldw == self->area.width);
2782
2783     /* horizontal */
2784     switch (self->gravity) {
2785     default:
2786     case NorthWestGravity:
2787     case WestGravity:
2788     case SouthWestGravity:
2789     case StaticGravity:
2790     case ForgetGravity:
2791         break;
2792     case NorthGravity:
2793     case CenterGravity:
2794     case SouthGravity:
2795         *x -= (neww - oldw) / 2;
2796         break;
2797     case NorthEastGravity:
2798     case EastGravity:
2799     case SouthEastGravity:
2800         *x -= neww - oldw;
2801         break;
2802     }
2803 }
2804
2805 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2806 {
2807     /* these should be the current values. this is for when you're not moving,
2808        just resizing */
2809     g_assert(*y == self->area.y);
2810     g_assert(oldh == self->area.height);
2811
2812     /* vertical */
2813     switch (self->gravity) {
2814     default:
2815     case NorthWestGravity:
2816     case NorthGravity:
2817     case NorthEastGravity:
2818     case StaticGravity:
2819     case ForgetGravity:
2820         break;
2821     case WestGravity:
2822     case CenterGravity:
2823     case EastGravity:
2824         *y -= (newh - oldh) / 2;
2825         break;
2826     case SouthWestGravity:
2827     case SouthGravity:
2828     case SouthEastGravity:
2829         *y -= newh - oldh;
2830         break;
2831     }
2832 }
2833
2834 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2835                           gint *logicalw, gint *logicalh,
2836                           gboolean user)
2837 {
2838     Rect desired = {*x, *y, *w, *h};
2839     frame_rect_to_frame(self->frame, &desired);
2840
2841     /* make the frame recalculate its dimensions n shit without changing
2842        anything visible for real, this way the constraints below can work with
2843        the updated frame dimensions. */
2844     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2845
2846     /* gets the frame's position */
2847     frame_client_gravity(self->frame, x, y);
2848
2849     /* these positions are frame positions, not client positions */
2850
2851     /* set the size and position if fullscreen */
2852     if (self->fullscreen) {
2853         const Rect *a;
2854         guint i;
2855
2856         i = screen_find_monitor(&desired);
2857         a = screen_physical_area_monitor(i);
2858
2859         *x = a->x;
2860         *y = a->y;
2861         *w = a->width;
2862         *h = a->height;
2863
2864         user = FALSE; /* ignore if the client can't be moved/resized when it
2865                          is fullscreening */
2866     } else if (self->max_horz || self->max_vert) {
2867         Rect *a;
2868         guint i;
2869
2870         /* use all possible struts when maximizing to the full screen */
2871         i = screen_find_monitor(&desired);
2872         a = screen_area(self->desktop, i,
2873                         (self->max_horz && self->max_vert ? NULL : &desired));
2874
2875         /* set the size and position if maximized */
2876         if (self->max_horz) {
2877             *x = a->x;
2878             *w = a->width - self->frame->size.left - self->frame->size.right;
2879         }
2880         if (self->max_vert) {
2881             *y = a->y;
2882             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2883         }
2884
2885         user = FALSE; /* ignore if the client can't be moved/resized when it
2886                          is maximizing */
2887
2888         g_slice_free(Rect, a);
2889     }
2890
2891     /* gets the client's position */
2892     frame_frame_gravity(self->frame, x, y);
2893
2894     /* work within the preferred sizes given by the window, these may have
2895        changed rather than it's requested width and height, so always run
2896        through this code */
2897     {
2898         gint basew, baseh, minw, minh;
2899         gint incw, inch, maxw, maxh;
2900         gfloat minratio, maxratio;
2901
2902         incw = self->size_inc.width;
2903         inch = self->size_inc.height;
2904         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2905             0 : self->min_ratio;
2906         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2907             0 : self->max_ratio;
2908
2909         /* base size is substituted with min size if not specified */
2910         if (self->base_size.width >= 0 || self->base_size.height >= 0) {
2911             basew = self->base_size.width;
2912             baseh = self->base_size.height;
2913         } else {
2914             basew = self->min_size.width;
2915             baseh = self->min_size.height;
2916         }
2917         /* min size is substituted with base size if not specified */
2918         if (self->min_size.width || self->min_size.height) {
2919             minw = self->min_size.width;
2920             minh = self->min_size.height;
2921         } else {
2922             minw = self->base_size.width;
2923             minh = self->base_size.height;
2924         }
2925
2926         /* This comment is no longer true */
2927         /* if this is a user-requested resize, then check against min/max
2928            sizes */
2929
2930         /* smaller than min size or bigger than max size? */
2931         if (*w > self->max_size.width) *w = self->max_size.width;
2932         if (*w < minw) *w = minw;
2933         if (*h > self->max_size.height) *h = self->max_size.height;
2934         if (*h < minh) *h = minh;
2935
2936         *w -= basew;
2937         *h -= baseh;
2938
2939         /* the sizes to used for maximized */
2940         maxw = *w;
2941         maxh = *h;
2942
2943         /* keep to the increments */
2944         *w /= incw;
2945         *h /= inch;
2946
2947         /* you cannot resize to nothing */
2948         if (basew + *w < 1) *w = 1 - basew;
2949         if (baseh + *h < 1) *h = 1 - baseh;
2950
2951         /* save the logical size */
2952         *logicalw = incw > 1 ? *w : *w + basew;
2953         *logicalh = inch > 1 ? *h : *h + baseh;
2954
2955         *w *= incw;
2956         *h *= inch;
2957
2958         /* if maximized/fs then don't use the size increments */
2959         if (self->fullscreen || self->max_horz) *w = maxw;
2960         if (self->fullscreen || self->max_vert) *h = maxh;
2961
2962         *w += basew;
2963         *h += baseh;
2964
2965         /* adjust the height to match the width for the aspect ratios.
2966            for this, min size is not substituted for base size ever. */
2967         *w -= self->base_size.width;
2968         *h -= self->base_size.height;
2969
2970         if (minratio)
2971             if (*h * minratio > *w) {
2972                 *h = (gint)(*w / minratio);
2973
2974                 /* you cannot resize to nothing */
2975                 if (*h < 1) {
2976                     *h = 1;
2977                     *w = (gint)(*h * minratio);
2978                 }
2979             }
2980         if (maxratio)
2981             if (*h * maxratio < *w) {
2982                 *h = (gint)(*w / maxratio);
2983
2984                 /* you cannot resize to nothing */
2985                 if (*h < 1) {
2986                     *h = 1;
2987                     *w = (gint)(*h * minratio);
2988                 }
2989             }
2990
2991         *w += self->base_size.width;
2992         *h += self->base_size.height;
2993     }
2994
2995     /* these override the above states! if you cant move you can't move! */
2996     if (user) {
2997         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2998             *x = self->area.x;
2999             *y = self->area.y;
3000         }
3001         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
3002             *w = self->area.width;
3003             *h = self->area.height;
3004         }
3005     }
3006
3007     g_assert(*w > 0);
3008     g_assert(*h > 0);
3009 }
3010
3011 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
3012                       gboolean user, gboolean final, gboolean force_reply)
3013 {
3014     Rect oldframe, oldclient;
3015     gboolean send_resize_client;
3016     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
3017     gboolean fmoved, fresized;
3018     guint fdecor = self->frame->decorations;
3019     gboolean fhorz = self->frame->max_horz;
3020     gboolean fvert = self->frame->max_vert;
3021     gint logicalw, logicalh;
3022
3023     /* find the new x, y, width, and height (and logical size) */
3024     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
3025
3026     /* set the logical size if things changed */
3027     if (!(w == self->area.width && h == self->area.height))
3028         SIZE_SET(self->logical_size, logicalw, logicalh);
3029
3030     /* figure out if we moved or resized or what */
3031     moved = (x != self->area.x || y != self->area.y);
3032     resized = (w != self->area.width || h != self->area.height);
3033
3034     oldframe = self->frame->area;
3035     oldclient = self->area;
3036     RECT_SET(self->area, x, y, w, h);
3037
3038     /* for app-requested resizes, always resize if 'resized' is true.
3039        for user-requested ones, only resize if final is true, or when
3040        resizing in redraw mode */
3041     send_resize_client = ((!user && resized) ||
3042                           (user && (final ||
3043                                     (resized && config_resize_redraw))));
3044
3045     /* if the client is enlarging, then resize the client before the frame */
3046     if (send_resize_client && (w > oldclient.width || h > oldclient.height)) {
3047         XMoveResizeWindow(obt_display, self->window,
3048                           self->frame->size.left, self->frame->size.top,
3049                           MAX(w, oldclient.width), MAX(h, oldclient.height));
3050         frame_adjust_client_area(self->frame);
3051     }
3052
3053     /* find the frame's dimensions and move/resize it */
3054     fmoved = moved;
3055     fresized = resized;
3056
3057     /* if decorations changed, then readjust everything for the frame */
3058     if (self->decorations != fdecor ||
3059         self->max_horz != fhorz || self->max_vert != fvert)
3060     {
3061         fmoved = fresized = TRUE;
3062     }
3063
3064     /* adjust the frame */
3065     if (fmoved || fresized) {
3066         gulong ignore_start;
3067         if (!user)
3068             ignore_start = event_start_ignore_all_enters();
3069
3070         /* replay pending pointer event before move the window, in case it
3071            would change what window gets the event */
3072         mouse_replay_pointer();
3073
3074         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
3075
3076         if (!user)
3077             event_end_ignore_all_enters(ignore_start);
3078     }
3079
3080     if (!user || final) {
3081         gint oldrx = self->root_pos.x;
3082         gint oldry = self->root_pos.y;
3083         /* we have reset the client to 0 border width, so don't include
3084            it in these coords */
3085         POINT_SET(self->root_pos,
3086                   self->frame->area.x + self->frame->size.left -
3087                   self->border_width,
3088                   self->frame->area.y + self->frame->size.top -
3089                   self->border_width);
3090         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
3091             rootmoved = TRUE;
3092     }
3093
3094     /* This is kinda tricky and should not be changed.. let me explain!
3095
3096        When user = FALSE, then the request is coming from the application
3097        itself, and we are more strict about when to send a synthetic
3098        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3099        in this case (or send one if force_reply is true)
3100
3101        When user = TRUE, then the request is coming from "us", like when we
3102        maximize a window or something.  In this case we are more lenient.  We
3103        used to follow the same rules as above, but _Java_ Swing can't handle
3104        this. So just to appease Swing, when user = TRUE, we always send
3105        a synthetic ConfigureNotify to give the window its root coordinates.
3106        Lastly, if force_reply is TRUE, we always send a
3107        ConfigureNotify, which is needed during a resize with XSYNCronization.
3108     */
3109     if ((!user && !resized && (rootmoved || force_reply)) ||
3110         (user && ((!resized && force_reply) || (final && rootmoved))))
3111     {
3112         XEvent event;
3113
3114         event.type = ConfigureNotify;
3115         event.xconfigure.display = obt_display;
3116         event.xconfigure.event = self->window;
3117         event.xconfigure.window = self->window;
3118
3119         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d",
3120                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3121
3122         /* root window real coords */
3123         event.xconfigure.x = self->root_pos.x;
3124         event.xconfigure.y = self->root_pos.y;
3125         event.xconfigure.width = w;
3126         event.xconfigure.height = h;
3127         event.xconfigure.border_width = self->border_width;
3128         event.xconfigure.above = None;
3129         event.xconfigure.override_redirect = FALSE;
3130         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3131                    FALSE, StructureNotifyMask, &event);
3132     }
3133
3134     /* if the client is shrinking, then resize the frame before the client.
3135
3136        both of these resize sections may run, because the top one only resizes
3137        in the direction that is growing
3138      */
3139     if (send_resize_client && (w <= oldclient.width || h <= oldclient.height))
3140     {
3141         frame_adjust_client_area(self->frame);
3142         XMoveResizeWindow(obt_display, self->window,
3143                           self->frame->size.left, self->frame->size.top, w, h);
3144     }
3145
3146     XFlush(obt_display);
3147
3148     /* if it moved between monitors, then this can affect the stacking
3149        layer of this window or others - for fullscreen windows.
3150        also if it changed to/from oldschool fullscreen then its layer may
3151        change
3152
3153        watch out tho, don't try change stacking stuff if the window is no
3154        longer being managed !
3155     */
3156     if (self->managed &&
3157         (screen_find_monitor(&self->frame->area) !=
3158          screen_find_monitor(&oldframe) ||
3159          (final && (client_is_oldfullscreen(self, &oldclient) !=
3160                     client_is_oldfullscreen(self, &self->area)))))
3161     {
3162         client_calc_layer(self);
3163     }
3164 }
3165
3166 void client_fullscreen(ObClient *self, gboolean fs)
3167 {
3168     gint x, y, w, h;
3169
3170     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3171         self->fullscreen == fs) return;                   /* already done */
3172
3173     self->fullscreen = fs;
3174     client_change_state(self); /* change the state hints on the client */
3175
3176     if (fs) {
3177         self->pre_fullscreen_area = self->area;
3178         self->pre_fullscreen_max_horz = self->max_horz;
3179         self->pre_fullscreen_max_vert = self->max_vert;
3180
3181         /* if the window is maximized, its area isn't all that meaningful.
3182            save its premax area instead. */
3183         if (self->max_horz) {
3184             self->pre_fullscreen_area.x = self->pre_max_area.x;
3185             self->pre_fullscreen_area.width = self->pre_max_area.width;
3186         }
3187         if (self->max_vert) {
3188             self->pre_fullscreen_area.y = self->pre_max_area.y;
3189             self->pre_fullscreen_area.height = self->pre_max_area.height;
3190         }
3191
3192         /* these will help configure_full figure out where to fullscreen
3193            the window */
3194         x = self->area.x;
3195         y = self->area.y;
3196         w = self->area.width;
3197         h = self->area.height;
3198     } else {
3199         g_assert(self->pre_fullscreen_area.width > 0 &&
3200                  self->pre_fullscreen_area.height > 0);
3201
3202         self->max_horz = self->pre_fullscreen_max_horz;
3203         self->max_vert = self->pre_fullscreen_max_vert;
3204         if (self->max_horz) {
3205             self->pre_max_area.x = self->pre_fullscreen_area.x;
3206             self->pre_max_area.width = self->pre_fullscreen_area.width;
3207         }
3208         if (self->max_vert) {
3209             self->pre_max_area.y = self->pre_fullscreen_area.y;
3210             self->pre_max_area.height = self->pre_fullscreen_area.height;
3211         }
3212
3213         x = self->pre_fullscreen_area.x;
3214         y = self->pre_fullscreen_area.y;
3215         w = self->pre_fullscreen_area.width;
3216         h = self->pre_fullscreen_area.height;
3217         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3218     }
3219
3220     ob_debug("Window %s going fullscreen (%d)",
3221              self->title, self->fullscreen);
3222
3223     if (fs) {
3224         /* make sure the window is on some monitor */
3225         client_find_onscreen(self, &x, &y, w, h, FALSE);
3226     }
3227
3228     client_setup_decor_and_functions(self, FALSE);
3229     client_move_resize(self, x, y, w, h);
3230
3231     /* and adjust our layer/stacking. do this after resizing the window,
3232        and applying decorations, because windows which fill the screen are
3233        considered "fullscreen" and it affects their layer */
3234     client_calc_layer(self);
3235
3236     if (fs) {
3237         /* try focus us when we go into fullscreen mode */
3238         client_focus(self);
3239     }
3240 }
3241
3242 static void client_iconify_recursive(ObClient *self,
3243                                      gboolean iconic, gboolean curdesk,
3244                                      gboolean hide_animation)
3245 {
3246     GSList *it;
3247     gboolean changed = FALSE;
3248
3249     if (self->iconic != iconic) {
3250         ob_debug("%sconifying window: 0x%lx", (iconic ? "I" : "Uni"),
3251                  self->window);
3252
3253         if (iconic) {
3254             /* don't let non-normal windows iconify along with their parents
3255                or whatever */
3256             if (client_normal(self)) {
3257                 self->iconic = iconic;
3258
3259                 /* update the focus lists.. iconic windows go to the bottom of
3260                    the list. this will also call focus_cycle_addremove(). */
3261                 focus_order_to_bottom(self);
3262
3263                 changed = TRUE;
3264             }
3265         } else {
3266             self->iconic = iconic;
3267
3268             if (curdesk && self->desktop != screen_desktop &&
3269                 self->desktop != DESKTOP_ALL)
3270                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3271
3272             /* this puts it after the current focused window, this will
3273                also cause focus_cycle_addremove() to be called for the
3274                client */
3275             focus_order_like_new(self);
3276
3277             changed = TRUE;
3278         }
3279     }
3280
3281     if (changed) {
3282         client_change_state(self);
3283         if (config_animate_iconify && !hide_animation)
3284             frame_begin_iconify_animation(self->frame, iconic);
3285         /* do this after starting the animation so it doesn't flash */
3286         client_showhide(self);
3287     }
3288
3289     /* iconify all direct transients, and deiconify all transients
3290        (non-direct too) */
3291     for (it = self->transients; it; it = g_slist_next(it))
3292         if (it->data != self)
3293             if (client_is_direct_child(self, it->data) || !iconic)
3294                 client_iconify_recursive(it->data, iconic, curdesk,
3295                                          hide_animation);
3296 }
3297
3298 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3299                     gboolean hide_animation)
3300 {
3301     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3302         /* move up the transient chain as far as possible first */
3303         self = client_search_top_direct_parent(self);
3304         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3305     }
3306 }
3307
3308 void client_maximize(ObClient *self, gboolean max, gint dir)
3309 {
3310     gint x, y, w, h;
3311
3312     g_assert(dir == 0 || dir == 1 || dir == 2);
3313     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && max) return;/* can't */
3314
3315     /* check if already done */
3316     if (max) {
3317         if (dir == 0 && self->max_horz && self->max_vert) return;
3318         if (dir == 1 && self->max_horz) return;
3319         if (dir == 2 && self->max_vert) return;
3320     } else {
3321         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3322         if (dir == 1 && !self->max_horz) return;
3323         if (dir == 2 && !self->max_vert) return;
3324     }
3325
3326     /* these will help configure_full figure out which screen to fill with
3327        the window */
3328     x = self->area.x;
3329     y = self->area.y;
3330     w = self->area.width;
3331     h = self->area.height;
3332
3333     if (max) {
3334         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3335             RECT_SET(self->pre_max_area,
3336                      self->area.x, self->pre_max_area.y,
3337                      self->area.width, self->pre_max_area.height);
3338         }
3339         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3340             RECT_SET(self->pre_max_area,
3341                      self->pre_max_area.x, self->area.y,
3342                      self->pre_max_area.width, self->area.height);
3343         }
3344     } else {
3345         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3346             g_assert(self->pre_max_area.width > 0);
3347
3348             x = self->pre_max_area.x;
3349             w = self->pre_max_area.width;
3350
3351             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3352                      0, self->pre_max_area.height);
3353         }
3354         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3355             g_assert(self->pre_max_area.height > 0);
3356
3357             y = self->pre_max_area.y;
3358             h = self->pre_max_area.height;
3359
3360             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3361                      self->pre_max_area.width, 0);
3362         }
3363     }
3364
3365     if (dir == 0 || dir == 1) /* horz */
3366         self->max_horz = max;
3367     if (dir == 0 || dir == 2) /* vert */
3368         self->max_vert = max;
3369
3370     if (max) {
3371         /* make sure the window is on some monitor */
3372         client_find_onscreen(self, &x, &y, w, h, FALSE);
3373     }
3374
3375     client_change_state(self); /* change the state hints on the client */
3376
3377     client_setup_decor_and_functions(self, FALSE);
3378     client_move_resize(self, x, y, w, h);
3379 }
3380
3381 void client_shade(ObClient *self, gboolean shade)
3382 {
3383     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3384          shade) ||                         /* can't shade */
3385         self->shaded == shade) return;     /* already done */
3386
3387     self->shaded = shade;
3388     client_change_state(self);
3389     client_change_wm_state(self); /* the window is being hidden/shown */
3390     /* resize the frame to just the titlebar */
3391     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3392 }
3393
3394 static void client_ping_event(ObClient *self, gboolean dead)
3395 {
3396     if (self->not_responding != dead) {
3397         self->not_responding = dead;
3398         client_update_title(self);
3399
3400         if (dead)
3401             /* the client isn't responding, so ask to kill it */
3402             client_prompt_kill(self);
3403         else {
3404             /* it came back to life ! */
3405
3406             if (self->kill_prompt) {
3407                 prompt_unref(self->kill_prompt);
3408                 self->kill_prompt = NULL;
3409             }
3410
3411             self->kill_level = 0;
3412         }
3413     }
3414 }
3415
3416 void client_close(ObClient *self)
3417 {
3418     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3419
3420     /* if closing an internal obprompt, that is just cancelling it */
3421     if (self->prompt) {
3422         prompt_cancel(self->prompt);
3423         return;
3424     }
3425
3426     /* in the case that the client provides no means to requesting that it
3427        close, we just kill it */
3428     if (!self->delete_window)
3429         /* don't use client_kill(), we should only kill based on PID in
3430            response to a lack of PING replies */
3431         XKillClient(obt_display, self->window);
3432     else {
3433         /* request the client to close with WM_DELETE_WINDOW */
3434         OBT_PROP_MSG_TO(self->window, self->window, WM_PROTOCOLS,
3435                         OBT_PROP_ATOM(WM_DELETE_WINDOW), event_time(),
3436                         0, 0, 0, NoEventMask);
3437
3438         /* we're trying to close the window, so see if it is responding. if it
3439            is not, then we will let them kill the window */
3440         if (self->ping)
3441             ping_start(self, client_ping_event);
3442
3443         /* if we already know the window isn't responding (maybe they clicked
3444            no in the kill dialog but it hasn't come back to life), then show
3445            the kill dialog */
3446         if (self->not_responding)
3447             client_prompt_kill(self);
3448     }
3449 }
3450
3451 #define OB_KILL_RESULT_NO 0
3452 #define OB_KILL_RESULT_YES 1
3453
3454 static gboolean client_kill_requested(ObPrompt *p, gint result, gpointer data)
3455 {
3456     ObClient *self = data;
3457
3458     if (result == OB_KILL_RESULT_YES)
3459         client_kill(self);
3460     return TRUE; /* call the cleanup func */
3461 }
3462
3463 static void client_kill_cleanup(ObPrompt *p, gpointer data)
3464 {
3465     ObClient *self = data;
3466
3467     g_assert(p == self->kill_prompt);
3468
3469     prompt_unref(self->kill_prompt);
3470     self->kill_prompt = NULL;
3471 }
3472
3473 static void client_prompt_kill(ObClient *self)
3474 {
3475     /* check if we're already prompting */
3476     if (!self->kill_prompt) {
3477         ObPromptAnswer answers[] = {
3478             { 0, OB_KILL_RESULT_NO },
3479             { 0, OB_KILL_RESULT_YES }
3480         };
3481         gchar *m;
3482         const gchar *y, *title;
3483
3484         title = self->original_title;
3485         if (title[0] == '\0') {
3486             /* empty string, so use its parent */
3487             ObClient *p = client_search_top_direct_parent(self);
3488             if (p) title = p->original_title;
3489         }
3490
3491         if (client_on_localhost(self)) {
3492             const gchar *sig;
3493
3494             if (self->kill_level == 0)
3495                 sig = "terminate";
3496             else
3497                 sig = "kill";
3498
3499             m = g_strdup_printf
3500                 (_("The window \"%s\" does not seem to be responding.  Do you want to force it to exit by sending the %s signal?"),
3501                  title, sig);
3502             y = _("End Process");
3503         }
3504         else {
3505             m = g_strdup_printf
3506                 (_("The window \"%s\" does not seem to be responding.  Do you want to disconnect it from the X server?"),
3507                  title);
3508             y = _("Disconnect");
3509         }
3510         /* set the dialog buttons' text */
3511         answers[0].text = _("Cancel");  /* "no" */
3512         answers[1].text = y;            /* "yes" */
3513
3514         self->kill_prompt = prompt_new(m, NULL, answers,
3515                                        sizeof(answers)/sizeof(answers[0]),
3516                                        OB_KILL_RESULT_NO, /* default = no */
3517                                        OB_KILL_RESULT_NO, /* cancel = no */
3518                                        client_kill_requested,
3519                                        client_kill_cleanup,
3520                                        self);
3521         g_free(m);
3522     }
3523
3524     prompt_show(self->kill_prompt, self, TRUE);
3525 }
3526
3527 void client_kill(ObClient *self)
3528 {
3529     /* don't kill our own windows */
3530     if (self->prompt) return;
3531
3532     if (client_on_localhost(self) && self->pid) {
3533         /* running on the local host */
3534         if (self->kill_level == 0) {
3535             ob_debug("killing window 0x%x with pid %lu, with SIGTERM",
3536                      self->window, self->pid);
3537             kill(self->pid, SIGTERM);
3538             ++self->kill_level;
3539
3540             /* show that we're trying to kill it */
3541             client_update_title(self);
3542         }
3543         else {
3544             ob_debug("killing window 0x%x with pid %lu, with SIGKILL",
3545                      self->window, self->pid);
3546             kill(self->pid, SIGKILL); /* kill -9 */
3547         }
3548     }
3549     else {
3550         /* running on a remote host */
3551         XKillClient(obt_display, self->window);
3552     }
3553 }
3554
3555 void client_hilite(ObClient *self, gboolean hilite)
3556 {
3557     if (self->demands_attention == hilite)
3558         return; /* no change */
3559
3560     /* don't allow focused windows to hilite */
3561     self->demands_attention = hilite && !client_focused(self);
3562     if (self->frame != NULL) { /* if we're mapping, just set the state */
3563         if (self->demands_attention) {
3564             frame_flash_start(self->frame);
3565
3566             /* if the window is on another desktop then raise it and make it
3567                the most recently used window */
3568             if (self->desktop != screen_desktop &&
3569                 self->desktop != DESKTOP_ALL)
3570             {
3571                 stacking_raise(CLIENT_AS_WINDOW(self));
3572                 focus_order_to_top(self);
3573             }
3574         }
3575         else
3576             frame_flash_stop(self->frame);
3577         client_change_state(self);
3578     }
3579 }
3580
3581 static void client_set_desktop_recursive(ObClient *self,
3582                                          guint target,
3583                                          gboolean donthide,
3584                                          gboolean dontraise)
3585 {
3586     guint old;
3587     GSList *it;
3588
3589     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3590
3591         ob_debug("Setting desktop %u", target+1);
3592
3593         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3594
3595         old = self->desktop;
3596         self->desktop = target;
3597         OBT_PROP_SET32(self->window, NET_WM_DESKTOP, CARDINAL, target);
3598         /* the frame can display the current desktop state */
3599         frame_adjust_state(self->frame);
3600         /* 'move' the window to the new desktop */
3601         if (!donthide)
3602             client_hide(self);
3603         client_show(self);
3604         /* raise if it was not already on the desktop */
3605         if (old != DESKTOP_ALL && !dontraise)
3606             stacking_raise(CLIENT_AS_WINDOW(self));
3607         if (STRUT_EXISTS(self->strut))
3608             screen_update_areas();
3609         else
3610             /* the new desktop's geometry may be different, so we may need to
3611                resize, for example if we are maximized */
3612             client_reconfigure(self, FALSE);
3613
3614         focus_cycle_addremove(self, FALSE);
3615     }
3616
3617     /* move all transients */
3618     for (it = self->transients; it; it = g_slist_next(it))
3619         if (it->data != self)
3620             if (client_is_direct_child(self, it->data))
3621                 client_set_desktop_recursive(it->data, target,
3622                                              donthide, dontraise);
3623 }
3624
3625 void client_set_desktop(ObClient *self, guint target,
3626                         gboolean donthide, gboolean dontraise)
3627 {
3628     self = client_search_top_direct_parent(self);
3629     client_set_desktop_recursive(self, target, donthide, dontraise);
3630
3631     focus_cycle_addremove(NULL, TRUE);
3632 }
3633
3634 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3635 {
3636     while (child != parent && (child = client_direct_parent(child)));
3637     return child == parent;
3638 }
3639
3640 ObClient *client_search_modal_child(ObClient *self)
3641 {
3642     GSList *it;
3643     ObClient *ret;
3644
3645     for (it = self->transients; it; it = g_slist_next(it)) {
3646         ObClient *c = it->data;
3647         if ((ret = client_search_modal_child(c))) return ret;
3648         if (c->modal) return c;
3649     }
3650     return NULL;
3651 }
3652
3653 struct ObClientFindDestroyUnmap {
3654     Window window;
3655     gint ignore_unmaps;
3656 };
3657
3658 static gboolean find_destroy_unmap(XEvent *e, gpointer data)
3659 {
3660     struct ObClientFindDestroyUnmap *find = data;
3661     if (e->type == DestroyNotify)
3662         return e->xdestroywindow.window == find->window;
3663     if (e->type == UnmapNotify && e->xunmap.window == find->window)
3664         /* ignore the first $find->ignore_unmaps$ many unmap events */
3665         return --find->ignore_unmaps < 0;
3666     return FALSE;
3667 }
3668
3669 gboolean client_validate(ObClient *self)
3670 {
3671     struct ObClientFindDestroyUnmap find;
3672
3673     XSync(obt_display, FALSE); /* get all events on the server */
3674
3675     find.window = self->window;
3676     find.ignore_unmaps = self->ignore_unmaps;
3677     if (xqueue_exists_local(find_destroy_unmap, &find))
3678         return FALSE;
3679
3680     return TRUE;
3681 }
3682
3683 void client_set_wm_state(ObClient *self, glong state)
3684 {
3685     if (state == self->wmstate) return; /* no change */
3686
3687     switch (state) {
3688     case IconicState:
3689         client_iconify(self, TRUE, TRUE, FALSE);
3690         break;
3691     case NormalState:
3692         client_iconify(self, FALSE, TRUE, FALSE);
3693         break;
3694     }
3695 }
3696
3697 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3698 {
3699     gboolean shaded = self->shaded;
3700     gboolean fullscreen = self->fullscreen;
3701     gboolean undecorated = self->undecorated;
3702     gboolean max_horz = self->max_horz;
3703     gboolean max_vert = self->max_vert;
3704     gboolean modal = self->modal;
3705     gboolean iconic = self->iconic;
3706     gboolean demands_attention = self->demands_attention;
3707     gboolean above = self->above;
3708     gboolean below = self->below;
3709     gint i;
3710     gboolean value;
3711
3712     if (!(action == OBT_PROP_ATOM(NET_WM_STATE_ADD) ||
3713           action == OBT_PROP_ATOM(NET_WM_STATE_REMOVE) ||
3714           action == OBT_PROP_ATOM(NET_WM_STATE_TOGGLE)))
3715         /* an invalid action was passed to the client message, ignore it */
3716         return;
3717
3718     for (i = 0; i < 2; ++i) {
3719         Atom state = i == 0 ? data1 : data2;
3720
3721         if (!state) continue;
3722
3723         /* if toggling, then pick whether we're adding or removing */
3724         if (action == OBT_PROP_ATOM(NET_WM_STATE_TOGGLE)) {
3725             if (state == OBT_PROP_ATOM(NET_WM_STATE_MODAL))
3726                 value = modal;
3727             else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT))
3728                 value = self->max_vert;
3729             else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ))
3730                 value = self->max_horz;
3731             else if (state == OBT_PROP_ATOM(NET_WM_STATE_SHADED))
3732                 value = shaded;
3733             else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR))
3734                 value = self->skip_taskbar;
3735             else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER))
3736                 value = self->skip_pager;
3737             else if (state == OBT_PROP_ATOM(NET_WM_STATE_HIDDEN))
3738                 value = self->iconic;
3739             else if (state == OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN))
3740                 value = fullscreen;
3741             else if (state == OBT_PROP_ATOM(NET_WM_STATE_ABOVE))
3742                 value = self->above;
3743             else if (state == OBT_PROP_ATOM(NET_WM_STATE_BELOW))
3744                 value = self->below;
3745             else if (state == OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION))
3746                 value = self->demands_attention;
3747             else if (state == OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED))
3748                 value = undecorated;
3749             else
3750                 g_assert_not_reached();
3751             action = value ? OBT_PROP_ATOM(NET_WM_STATE_REMOVE) :
3752                              OBT_PROP_ATOM(NET_WM_STATE_ADD);
3753         }
3754
3755         value = action == OBT_PROP_ATOM(NET_WM_STATE_ADD);
3756         if (state == OBT_PROP_ATOM(NET_WM_STATE_MODAL)) {
3757             modal = value;
3758         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_VERT)) {
3759             max_vert = value;
3760         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_MAXIMIZED_HORZ)) {
3761             max_horz = value;
3762         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_SHADED)) {
3763             shaded = value;
3764         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_TASKBAR)) {
3765             self->skip_taskbar = value;
3766         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_SKIP_PAGER)) {
3767             self->skip_pager = value;
3768         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_HIDDEN)) {
3769             iconic = value;
3770         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_FULLSCREEN)) {
3771             fullscreen = value;
3772         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_ABOVE)) {
3773             above = value;
3774             /* only unset below when setting above, otherwise you can't get to
3775                the normal layer */
3776             if (value)
3777                 below = FALSE;
3778         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_BELOW)) {
3779             /* and vice versa */
3780             if (value)
3781                 above = FALSE;
3782             below = value;
3783         } else if (state == OBT_PROP_ATOM(NET_WM_STATE_DEMANDS_ATTENTION)){
3784             demands_attention = value;
3785         } else if (state == OBT_PROP_ATOM(OB_WM_STATE_UNDECORATED)) {
3786             undecorated = value;
3787         }
3788     }
3789
3790     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3791         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3792             /* toggling both */
3793             if (max_horz == max_vert) { /* both going the same way */
3794                 client_maximize(self, max_horz, 0);
3795             } else {
3796                 client_maximize(self, max_horz, 1);
3797                 client_maximize(self, max_vert, 2);
3798             }
3799         } else {
3800             /* toggling one */
3801             if (max_horz != self->max_horz)
3802                 client_maximize(self, max_horz, 1);
3803             else
3804                 client_maximize(self, max_vert, 2);
3805         }
3806     }
3807     /* change fullscreen state before shading, as it will affect if the window
3808        can shade or not */
3809     if (fullscreen != self->fullscreen)
3810         client_fullscreen(self, fullscreen);
3811     if (shaded != self->shaded)
3812         client_shade(self, shaded);
3813     if (undecorated != self->undecorated)
3814         client_set_undecorated(self, undecorated);
3815     if (above != self->above || below != self->below) {
3816         self->above = above;
3817         self->below = below;
3818         client_calc_layer(self);
3819     }
3820
3821     if (modal != self->modal) {
3822         self->modal = modal;
3823         /* when a window changes modality, then its stacking order with its
3824            transients needs to change */
3825         stacking_raise(CLIENT_AS_WINDOW(self));
3826
3827         /* it also may get focused. if something is focused that shouldn't
3828            be focused anymore, then move the focus */
3829         if (focus_client && client_focus_target(focus_client) != focus_client)
3830             client_focus(focus_client);
3831     }
3832
3833     if (iconic != self->iconic)
3834         client_iconify(self, iconic, FALSE, FALSE);
3835
3836     if (demands_attention != self->demands_attention)
3837         client_hilite(self, demands_attention);
3838
3839     client_change_state(self); /* change the hint to reflect these changes */
3840
3841     focus_cycle_addremove(self, TRUE);
3842 }
3843
3844 ObClient *client_focus_target(ObClient *self)
3845 {
3846     ObClient *child = NULL;
3847
3848     child = client_search_modal_child(self);
3849     if (child) return child;
3850     return self;
3851 }
3852
3853 gboolean client_can_focus(ObClient *self)
3854 {
3855     /* choose the correct target */
3856     self = client_focus_target(self);
3857
3858     if (!self->frame->visible)
3859         return FALSE;
3860
3861     if (!(self->can_focus || self->focus_notify))
3862         return FALSE;
3863
3864     return TRUE;
3865 }
3866
3867 gboolean client_focus(ObClient *self)
3868 {
3869     if (!client_validate(self)) return FALSE;
3870
3871     /* we might not focus this window, so if we have modal children which would
3872        be focused instead, bring them to this desktop */
3873     client_bring_modal_windows(self);
3874
3875     /* choose the correct target */
3876     self = client_focus_target(self);
3877
3878     if (!client_can_focus(self)) {
3879         ob_debug_type(OB_DEBUG_FOCUS,
3880                       "Client %s can't be focused", self->title);
3881         return FALSE;
3882     }
3883
3884     ob_debug_type(OB_DEBUG_FOCUS,
3885                   "Focusing client \"%s\" (0x%x) at time %u",
3886                   self->title, self->window, event_time());
3887
3888     /* if using focus_delay, stop the timer now so that focus doesn't
3889        go moving on us */
3890     event_halt_focus_delay();
3891
3892     obt_display_ignore_errors(TRUE);
3893
3894     if (self->can_focus) {
3895         /* This can cause a BadMatch error with CurrentTime, or if an app
3896            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3897         XSetInputFocus(obt_display, self->window, RevertToPointerRoot,
3898                        event_time());
3899     }
3900
3901     if (self->focus_notify) {
3902         XEvent ce;
3903         ce.xclient.type = ClientMessage;
3904         ce.xclient.message_type = OBT_PROP_ATOM(WM_PROTOCOLS);
3905         ce.xclient.display = obt_display;
3906         ce.xclient.window = self->window;
3907         ce.xclient.format = 32;
3908         ce.xclient.data.l[0] = OBT_PROP_ATOM(WM_TAKE_FOCUS);
3909         ce.xclient.data.l[1] = event_time();
3910         ce.xclient.data.l[2] = 0l;
3911         ce.xclient.data.l[3] = 0l;
3912         ce.xclient.data.l[4] = 0l;
3913         XSendEvent(obt_display, self->window, FALSE, NoEventMask, &ce);
3914     }
3915
3916     obt_display_ignore_errors(FALSE);
3917
3918     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d",
3919                   obt_display_error_occured);
3920     return !obt_display_error_occured;
3921 }
3922
3923 static void client_present(ObClient *self, gboolean here, gboolean raise,
3924                            gboolean unshade)
3925 {
3926     if (client_normal(self) && screen_showing_desktop)
3927         screen_show_desktop(FALSE, self);
3928     if (self->iconic)
3929         client_iconify(self, FALSE, here, FALSE);
3930     if (self->desktop != DESKTOP_ALL &&
3931         self->desktop != screen_desktop)
3932     {
3933         if (here)
3934             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3935         else
3936             screen_set_desktop(self->desktop, FALSE);
3937     } else if (!self->frame->visible)
3938         /* if its not visible for other reasons, then don't mess
3939            with it */
3940         return;
3941     if (self->shaded && unshade)
3942         client_shade(self, FALSE);
3943     if (raise)
3944         stacking_raise(CLIENT_AS_WINDOW(self));
3945
3946     client_focus(self);
3947 }
3948
3949 /* this function exists to map to the net_active_window message in the ewmh */
3950 void client_activate(ObClient *self, gboolean desktop,
3951                      gboolean here, gboolean raise,
3952                      gboolean unshade, gboolean user)
3953 {
3954     if ((user && (desktop ||
3955                   self->desktop == DESKTOP_ALL ||
3956                   self->desktop == screen_desktop)) ||
3957         client_can_steal_focus(self, desktop, event_time(), CurrentTime))
3958     {
3959         client_present(self, here, raise, unshade);
3960     }
3961     else
3962         client_hilite(self, TRUE);
3963 }
3964
3965 static void client_bring_windows_recursive(ObClient *self,
3966                                            guint desktop,
3967                                            gboolean helpers,
3968                                            gboolean modals,
3969                                            gboolean iconic)
3970 {
3971     GSList *it;
3972
3973     for (it = self->transients; it; it = g_slist_next(it))
3974         client_bring_windows_recursive(it->data, desktop,
3975                                        helpers, modals, iconic);
3976
3977     if (((helpers && client_helper(self)) ||
3978          (modals && self->modal)) &&
3979         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3980          (iconic && self->iconic)))
3981     {
3982         if (iconic && self->iconic)
3983             client_iconify(self, FALSE, TRUE, FALSE);
3984         else
3985             client_set_desktop(self, desktop, FALSE, FALSE);
3986     }
3987 }
3988
3989 void client_bring_helper_windows(ObClient *self)
3990 {
3991     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3992 }
3993
3994 void client_bring_modal_windows(ObClient *self)
3995 {
3996     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3997 }
3998
3999 gboolean client_focused(ObClient *self)
4000 {
4001     return self == focus_client;
4002 }
4003
4004 RrImage* client_icon(ObClient *self)
4005 {
4006     RrImage *ret = NULL;
4007
4008     if (self->icon_set)
4009         ret = self->icon_set;
4010     else if (self->parents) {
4011         GSList *it;
4012         for (it = self->parents; it && !ret; it = g_slist_next(it))
4013             ret = client_icon(it->data);
4014     }
4015     if (!ret)
4016         ret = client_default_icon;
4017     return ret;
4018 }
4019
4020 void client_set_layer(ObClient *self, gint layer)
4021 {
4022     if (layer < 0) {
4023         self->below = TRUE;
4024         self->above = FALSE;
4025     } else if (layer == 0) {
4026         self->below = self->above = FALSE;
4027     } else {
4028         self->below = FALSE;
4029         self->above = TRUE;
4030     }
4031     client_calc_layer(self);
4032     client_change_state(self); /* reflect this in the state hints */
4033 }
4034
4035 void client_set_undecorated(ObClient *self, gboolean undecorated)
4036 {
4037     if (self->undecorated != undecorated &&
4038         /* don't let it undecorate if the function is missing, but let
4039            it redecorate */
4040         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
4041     {
4042         self->undecorated = undecorated;
4043         client_setup_decor_and_functions(self, TRUE);
4044         client_change_state(self); /* reflect this in the state hints */
4045     }
4046 }
4047
4048 guint client_monitor(ObClient *self)
4049 {
4050     return screen_find_monitor(&self->frame->area);
4051 }
4052
4053 ObClient *client_direct_parent(ObClient *self)
4054 {
4055     if (!self->parents) return NULL;
4056     if (self->transient_for_group) return NULL;
4057     return self->parents->data;
4058 }
4059
4060 ObClient *client_search_top_direct_parent(ObClient *self)
4061 {
4062     ObClient *p;
4063     while ((p = client_direct_parent(self))) self = p;
4064     return self;
4065 }
4066
4067 static GSList *client_search_all_top_parents_internal(ObClient *self,
4068                                                       gboolean bylayer,
4069                                                       ObStackingLayer layer)
4070 {
4071     GSList *ret;
4072     ObClient *p;
4073
4074     /* move up the direct transient chain as far as possible */
4075     while ((p = client_direct_parent(self)) &&
4076            (!bylayer || p->layer == layer))
4077         self = p;
4078
4079     if (!self->parents)
4080         ret = g_slist_prepend(NULL, self);
4081     else
4082         ret = g_slist_copy(self->parents);
4083
4084     return ret;
4085 }
4086
4087 GSList *client_search_all_top_parents(ObClient *self)
4088 {
4089     return client_search_all_top_parents_internal(self, FALSE, 0);
4090 }
4091
4092 GSList *client_search_all_top_parents_layer(ObClient *self)
4093 {
4094     return client_search_all_top_parents_internal(self, TRUE, self->layer);
4095 }
4096
4097 ObClient *client_search_focus_parent(ObClient *self)
4098 {
4099     GSList *it;
4100
4101     for (it = self->parents; it; it = g_slist_next(it))
4102         if (client_focused(it->data)) return it->data;
4103
4104     return NULL;
4105 }
4106
4107 ObClient *client_search_focus_parent_full(ObClient *self)
4108 {
4109     GSList *it;
4110     ObClient *ret = NULL;
4111
4112     for (it = self->parents; it; it = g_slist_next(it)) {
4113         if (client_focused(it->data))
4114             ret = it->data;
4115         else
4116             ret = client_search_focus_parent_full(it->data);
4117         if (ret) break;
4118     }
4119     return ret;
4120 }
4121
4122 ObClient *client_search_parent(ObClient *self, ObClient *search)
4123 {
4124     GSList *it;
4125
4126     for (it = self->parents; it; it = g_slist_next(it))
4127         if (it->data == search) return search;
4128
4129     return NULL;
4130 }
4131
4132 ObClient *client_search_transient(ObClient *self, ObClient *search)
4133 {
4134     GSList *sit;
4135
4136     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
4137         if (sit->data == search)
4138             return search;
4139         if (client_search_transient(sit->data, search))
4140             return search;
4141     }
4142     return NULL;
4143 }
4144
4145 static void detect_edge(Rect area, ObDirection dir,
4146                         gint my_head, gint my_size,
4147                         gint my_edge_start, gint my_edge_size,
4148                         gint *dest, gboolean *near_edge)
4149 {
4150     gint edge_start, edge_size, head, tail;
4151     gboolean skip_head = FALSE, skip_tail = FALSE;
4152
4153     switch (dir) {
4154         case OB_DIRECTION_NORTH:
4155         case OB_DIRECTION_SOUTH:
4156             edge_start = area.x;
4157             edge_size = area.width;
4158             break;
4159         case OB_DIRECTION_EAST:
4160         case OB_DIRECTION_WEST:
4161             edge_start = area.y;
4162             edge_size = area.height;
4163             break;
4164         default:
4165             g_assert_not_reached();
4166     }
4167
4168     /* do we collide with this window? */
4169     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
4170                 edge_start, edge_size))
4171         return;
4172
4173     switch (dir) {
4174         case OB_DIRECTION_NORTH:
4175             head = RECT_BOTTOM(area);
4176             tail = RECT_TOP(area);
4177             break;
4178         case OB_DIRECTION_SOUTH:
4179             head = RECT_TOP(area);
4180             tail = RECT_BOTTOM(area);
4181             break;
4182         case OB_DIRECTION_WEST:
4183             head = RECT_RIGHT(area);
4184             tail = RECT_LEFT(area);
4185             break;
4186         case OB_DIRECTION_EAST:
4187             head = RECT_LEFT(area);
4188             tail = RECT_RIGHT(area);
4189             break;
4190         default:
4191             g_assert_not_reached();
4192     }
4193     switch (dir) {
4194         case OB_DIRECTION_NORTH:
4195         case OB_DIRECTION_WEST:
4196             /* check if our window is past the head of this window */
4197             if (my_head <= head + 1)
4198                 skip_head = TRUE;
4199             /* check if our window's tail is past the tail of this window */
4200             if (my_head + my_size - 1 <= tail)
4201                 skip_tail = TRUE;
4202             /* check if the head of this window is closer than the previously
4203                chosen edge (take into account that the previously chosen
4204                edge might have been a tail, not a head) */
4205             if (head + (*near_edge ? 0 : my_size) <= *dest)
4206                 skip_head = TRUE;
4207             /* check if the tail of this window is closer than the previously
4208                chosen edge (take into account that the previously chosen
4209                edge might have been a head, not a tail) */
4210             if (tail - (!*near_edge ? 0 : my_size) <= *dest)
4211                 skip_tail = TRUE;
4212             break;
4213         case OB_DIRECTION_SOUTH:
4214         case OB_DIRECTION_EAST:
4215             /* check if our window is past the head of this window */
4216             if (my_head >= head - 1)
4217                 skip_head = TRUE;
4218             /* check if our window's tail is past the tail of this window */
4219             if (my_head - my_size + 1 >= tail)
4220                 skip_tail = TRUE;
4221             /* check if the head of this window is closer than the previously
4222                chosen edge (take into account that the previously chosen
4223                edge might have been a tail, not a head) */
4224             if (head - (*near_edge ? 0 : my_size) >= *dest)
4225                 skip_head = TRUE;
4226             /* check if the tail of this window is closer than the previously
4227                chosen edge (take into account that the previously chosen
4228                edge might have been a head, not a tail) */
4229             if (tail + (!*near_edge ? 0 : my_size) >= *dest)
4230                 skip_tail = TRUE;
4231             break;
4232         default:
4233             g_assert_not_reached();
4234     }
4235
4236     ob_debug("my head %d size %d", my_head, my_size);
4237     ob_debug("head %d tail %d dest %d", head, tail, *dest);
4238     if (!skip_head) {
4239         ob_debug("using near edge %d", head);
4240         *dest = head;
4241         *near_edge = TRUE;
4242     }
4243     else if (!skip_tail) {
4244         ob_debug("using far edge %d", tail);
4245         *dest = tail;
4246         *near_edge = FALSE;
4247     }
4248 }
4249
4250 void client_find_edge_directional(ObClient *self, ObDirection dir,
4251                                   gint my_head, gint my_size,
4252                                   gint my_edge_start, gint my_edge_size,
4253                                   gint *dest, gboolean *near_edge)
4254 {
4255     GList *it;
4256     Rect *a;
4257     Rect dock_area;
4258     gint edge;
4259     guint i;
4260
4261     a = screen_area(self->desktop, SCREEN_AREA_ALL_MONITORS,
4262                     &self->frame->area);
4263
4264     switch (dir) {
4265     case OB_DIRECTION_NORTH:
4266         edge = RECT_TOP(*a) - 1;
4267         break;
4268     case OB_DIRECTION_SOUTH:
4269         edge = RECT_BOTTOM(*a) + 1;
4270         break;
4271     case OB_DIRECTION_EAST:
4272         edge = RECT_RIGHT(*a) + 1;
4273         break;
4274     case OB_DIRECTION_WEST:
4275         edge = RECT_LEFT(*a) - 1;
4276         break;
4277     default:
4278         g_assert_not_reached();
4279     }
4280     /* default to the far edge, then narrow it down */
4281     *dest = edge;
4282     *near_edge = TRUE;
4283
4284     /* search for edges of monitors */
4285     for (i = 0; i < screen_num_monitors; ++i) {
4286         Rect *area = screen_area(self->desktop, i, NULL);
4287         detect_edge(*area, dir, my_head, my_size, my_edge_start,
4288                     my_edge_size, dest, near_edge);
4289         g_slice_free(Rect, area);
4290     }
4291
4292     /* search for edges of clients */
4293     if (((dir == OB_DIRECTION_NORTH || dir == OB_DIRECTION_SOUTH) &&
4294          !self->max_vert) ||
4295         ((dir == OB_DIRECTION_EAST || dir == OB_DIRECTION_WEST) &&
4296          !self->max_horz))
4297     {
4298         for (it = client_list; it; it = g_list_next(it)) {
4299             ObClient *cur = it->data;
4300
4301             /* skip windows to not bump into */
4302             if (cur == self)
4303                 continue;
4304             if (cur->iconic)
4305                 continue;
4306             if (self->desktop != cur->desktop && cur->desktop != DESKTOP_ALL &&
4307                 cur->desktop != screen_desktop)
4308                 continue;
4309
4310             ob_debug("trying window %s", cur->title);
4311
4312             detect_edge(cur->frame->area, dir, my_head, my_size, my_edge_start,
4313                         my_edge_size, dest, near_edge);
4314         }
4315         dock_get_area(&dock_area);
4316         detect_edge(dock_area, dir, my_head, my_size, my_edge_start,
4317                     my_edge_size, dest, near_edge);
4318     }
4319
4320     g_slice_free(Rect, a);
4321 }
4322
4323 void client_find_move_directional(ObClient *self, ObDirection dir,
4324                                   gint *x, gint *y)
4325 {
4326     gint head, size;
4327     gint e, e_start, e_size;
4328     gboolean near;
4329
4330     switch (dir) {
4331     case OB_DIRECTION_EAST:
4332         head = RECT_RIGHT(self->frame->area);
4333         size = self->frame->area.width;
4334         e_start = RECT_TOP(self->frame->area);
4335         e_size = self->frame->area.height;
4336         break;
4337     case OB_DIRECTION_WEST:
4338         head = RECT_LEFT(self->frame->area);
4339         size = self->frame->area.width;
4340         e_start = RECT_TOP(self->frame->area);
4341         e_size = self->frame->area.height;
4342         break;
4343     case OB_DIRECTION_NORTH:
4344         head = RECT_TOP(self->frame->area);
4345         size = self->frame->area.height;
4346         e_start = RECT_LEFT(self->frame->area);
4347         e_size = self->frame->area.width;
4348         break;
4349     case OB_DIRECTION_SOUTH:
4350         head = RECT_BOTTOM(self->frame->area);
4351         size = self->frame->area.height;
4352         e_start = RECT_LEFT(self->frame->area);
4353         e_size = self->frame->area.width;
4354         break;
4355     default:
4356         g_assert_not_reached();
4357     }
4358
4359     client_find_edge_directional(self, dir, head, size,
4360                                  e_start, e_size, &e, &near);
4361     *x = self->frame->area.x;
4362     *y = self->frame->area.y;
4363     switch (dir) {
4364     case OB_DIRECTION_EAST:
4365         if (near) e -= self->frame->area.width;
4366         else      e++;
4367         *x = e;
4368         break;
4369     case OB_DIRECTION_WEST:
4370         if (near) e++;
4371         else      e -= self->frame->area.width;
4372         *x = e;
4373         break;
4374     case OB_DIRECTION_NORTH:
4375         if (near) e++;
4376         else      e -= self->frame->area.height;
4377         *y = e;
4378         break;
4379     case OB_DIRECTION_SOUTH:
4380         if (near) e -= self->frame->area.height;
4381         else      e++;
4382         *y = e;
4383         break;
4384     default:
4385         g_assert_not_reached();
4386     }
4387     frame_frame_gravity(self->frame, x, y);
4388 }
4389
4390 void client_find_resize_directional(ObClient *self, ObDirection side,
4391                                     gboolean grow,
4392                                     gint *x, gint *y, gint *w, gint *h)
4393 {
4394     gint head;
4395     gint e, e_start, e_size, delta;
4396     gboolean near;
4397     ObDirection dir;
4398
4399     switch (side) {
4400     case OB_DIRECTION_EAST:
4401         head = RECT_RIGHT(self->frame->area) +
4402             (self->size_inc.width - 1) * (grow ? 1 : 0);
4403         e_start = RECT_TOP(self->frame->area);
4404         e_size = self->frame->area.height;
4405         dir = grow ? OB_DIRECTION_EAST : OB_DIRECTION_WEST;
4406         break;
4407     case OB_DIRECTION_WEST:
4408         head = RECT_LEFT(self->frame->area) -
4409             (self->size_inc.width - 1) * (grow ? 1 : 0);
4410         e_start = RECT_TOP(self->frame->area);
4411         e_size = self->frame->area.height;
4412         dir = grow ? OB_DIRECTION_WEST : OB_DIRECTION_EAST;
4413         break;
4414     case OB_DIRECTION_NORTH:
4415         head = RECT_TOP(self->frame->area) -
4416             (self->size_inc.height - 1) * (grow ? 1 : 0);
4417         e_start = RECT_LEFT(self->frame->area);
4418         e_size = self->frame->area.width;
4419         dir = grow ? OB_DIRECTION_NORTH : OB_DIRECTION_SOUTH;
4420         break;
4421     case OB_DIRECTION_SOUTH:
4422         head = RECT_BOTTOM(self->frame->area) +
4423             (self->size_inc.height - 1) * (grow ? 1 : 0);
4424         e_start = RECT_LEFT(self->frame->area);
4425         e_size = self->frame->area.width;
4426         dir = grow ? OB_DIRECTION_SOUTH : OB_DIRECTION_NORTH;
4427         break;
4428     default:
4429         g_assert_not_reached();
4430     }
4431
4432     ob_debug("head %d dir %d", head, dir);
4433     client_find_edge_directional(self, dir, head, 1,
4434                                  e_start, e_size, &e, &near);
4435     ob_debug("edge %d", e);
4436     *x = self->frame->area.x;
4437     *y = self->frame->area.y;
4438     *w = self->frame->area.width;
4439     *h = self->frame->area.height;
4440     switch (side) {
4441     case OB_DIRECTION_EAST:
4442         if (grow == near) --e;
4443         delta = e - RECT_RIGHT(self->frame->area);
4444         *w += delta;
4445         break;
4446     case OB_DIRECTION_WEST:
4447         if (grow == near) ++e;
4448         delta = RECT_LEFT(self->frame->area) - e;
4449         *x -= delta;
4450         *w += delta;
4451         break;
4452     case OB_DIRECTION_NORTH:
4453         if (grow == near) ++e;
4454         delta = RECT_TOP(self->frame->area) - e;
4455         *y -= delta;
4456         *h += delta;
4457         break;
4458     case OB_DIRECTION_SOUTH:
4459         if (grow == near) --e;
4460         delta = e - RECT_BOTTOM(self->frame->area);
4461         *h += delta;
4462         break;
4463     default:
4464         g_assert_not_reached();
4465     }
4466     frame_frame_gravity(self->frame, x, y);
4467     *w -= self->frame->size.left + self->frame->size.right;
4468     *h -= self->frame->size.top + self->frame->size.bottom;
4469 }
4470
4471 ObClient* client_under_pointer(void)
4472 {
4473     gint x, y;
4474     GList *it;
4475     ObClient *ret = NULL;
4476
4477     if (screen_pointer_pos(&x, &y)) {
4478         for (it = stacking_list; it; it = g_list_next(it)) {
4479             if (WINDOW_IS_CLIENT(it->data)) {
4480                 ObClient *c = WINDOW_AS_CLIENT(it->data);
4481                 if (c->frame->visible &&
4482                     /* check the desktop, this is done during desktop
4483                        switching and windows are shown/hidden status is not
4484                        reliable */
4485                     (c->desktop == screen_desktop ||
4486                      c->desktop == DESKTOP_ALL) &&
4487                     /* ignore all animating windows */
4488                     !frame_iconify_animating(c->frame) &&
4489                     RECT_CONTAINS(c->frame->area, x, y))
4490                 {
4491                     ret = c;
4492                     break;
4493                 }
4494             }
4495         }
4496     }
4497     return ret;
4498 }
4499
4500 gboolean client_has_group_siblings(ObClient *self)
4501 {
4502     return self->group && self->group->members->next;
4503 }
4504
4505 /*! Returns TRUE if the client is running on the same machine as Openbox */
4506 gboolean client_on_localhost(ObClient *self)
4507 {
4508     return self->client_machine == NULL;
4509 }