585379ec802399cf93561e24e414578ca0aa990e
[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 "xerror.h"
25 #include "screen.h"
26 #include "moveresize.h"
27 #include "ping.h"
28 #include "place.h"
29 #include "prop.h"
30 #include "extensions.h"
31 #include "frame.h"
32 #include "session.h"
33 #include "event.h"
34 #include "grab.h"
35 #include "prompt.h"
36 #include "focus.h"
37 #include "stacking.h"
38 #include "openbox.h"
39 #include "group.h"
40 #include "config.h"
41 #include "menuframe.h"
42 #include "keyboard.h"
43 #include "mouse.h"
44 #include "render/render.h"
45 #include "gettext.h"
46
47 #ifdef HAVE_UNISTD_H
48 #  include <unistd.h>
49 #endif
50
51 #ifdef HAVE_SIGNAL_H
52 #  include <signal.h> /* for kill() */
53 #endif
54
55 #include <glib.h>
56 #include <X11/Xutil.h>
57
58 /*! The event mask to grab on client windows */
59 #define CLIENT_EVENTMASK (PropertyChangeMask | StructureNotifyMask | \
60                           ColormapChangeMask)
61
62 #define CLIENT_NOPROPAGATEMASK (ButtonPressMask | ButtonReleaseMask | \
63                                 ButtonMotionMask)
64
65 typedef struct
66 {
67     ObClientCallback func;
68     gpointer data;
69 } ClientCallback;
70
71 GList          *client_list             = NULL;
72
73 static GSList  *client_destroy_notifies = NULL;
74 static RrImage *client_default_icon     = NULL;
75
76 static void client_get_all(ObClient *self, gboolean real);
77 static void client_get_startup_id(ObClient *self);
78 static void client_get_session_ids(ObClient *self);
79 static void client_get_area(ObClient *self);
80 static void client_get_desktop(ObClient *self);
81 static void client_get_state(ObClient *self);
82 static void client_get_shaped(ObClient *self);
83 static void client_get_mwm_hints(ObClient *self);
84 static void client_get_colormap(ObClient *self);
85 static void client_set_desktop_recursive(ObClient *self,
86                                          guint target,
87                                          gboolean donthide,
88                                          gboolean dontraise);
89 static void client_change_allowed_actions(ObClient *self);
90 static void client_change_state(ObClient *self);
91 static void client_change_wm_state(ObClient *self);
92 static void client_apply_startup_state(ObClient *self,
93                                        gint x, gint y, gint w, gint h);
94 static void client_restore_session_state(ObClient *self);
95 static gboolean client_restore_session_stacking(ObClient *self);
96 static ObAppSettings *client_get_settings_state(ObClient *self);
97 static void client_update_transient_tree(ObClient *self,
98                                          ObGroup *oldgroup, ObGroup *newgroup,
99                                          gboolean oldgtran, gboolean newgtran,
100                                          ObClient* oldparent,
101                                          ObClient *newparent);
102 static void client_present(ObClient *self, gboolean here, gboolean raise,
103                            gboolean unshade);
104 static GSList *client_search_all_top_parents_internal(ObClient *self,
105                                                       gboolean bylayer,
106                                                       ObStackingLayer layer);
107 static void client_call_notifies(ObClient *self, GSList *list);
108 static void client_ping_event(ObClient *self, gboolean dead);
109 static void client_prompt_kill(ObClient *self);
110
111
112 void client_startup(gboolean reconfig)
113 {
114     if ((client_default_icon = RrImageCacheFind(ob_rr_icons,
115                                                 ob_rr_theme->def_win_icon,
116                                                 ob_rr_theme->def_win_icon_w,
117                                                 ob_rr_theme->def_win_icon_h)))
118         RrImageRef(client_default_icon);
119     else {
120         client_default_icon = RrImageNew(ob_rr_icons);
121         RrImageAddPicture(client_default_icon,
122                           ob_rr_theme->def_win_icon,
123                           ob_rr_theme->def_win_icon_w,
124                           ob_rr_theme->def_win_icon_h);
125     }
126
127     if (reconfig) return;
128
129     client_set_list();
130 }
131
132 void client_shutdown(gboolean reconfig)
133 {
134     RrImageUnref(client_default_icon);
135     client_default_icon = NULL;
136
137     if (reconfig) return;
138 }
139
140 static void client_call_notifies(ObClient *self, GSList *list)
141 {
142     GSList *it;
143
144     for (it = list; it; it = g_slist_next(it)) {
145         ClientCallback *d = it->data;
146         d->func(self, d->data);
147     }
148 }
149
150 void client_add_destroy_notify(ObClientCallback func, gpointer data)
151 {
152     ClientCallback *d = g_new(ClientCallback, 1);
153     d->func = func;
154     d->data = data;
155     client_destroy_notifies = g_slist_prepend(client_destroy_notifies, d);
156 }
157
158 void client_remove_destroy_notify(ObClientCallback func)
159 {
160     GSList *it;
161
162     for (it = client_destroy_notifies; it; it = g_slist_next(it)) {
163         ClientCallback *d = it->data;
164         if (d->func == func) {
165             g_free(d);
166             client_destroy_notifies =
167                 g_slist_delete_link(client_destroy_notifies, it);
168             break;
169         }
170     }
171 }
172
173 void client_set_list(void)
174 {
175     Window *windows, *win_it;
176     GList *it;
177     guint size = g_list_length(client_list);
178
179     /* create an array of the window ids */
180     if (size > 0) {
181         windows = g_new(Window, size);
182         win_it = windows;
183         for (it = client_list; it; it = g_list_next(it), ++win_it)
184             *win_it = ((ObClient*)it->data)->window;
185     } else
186         windows = NULL;
187
188     PROP_SETA32(RootWindow(ob_display, ob_screen),
189                 net_client_list, window, (gulong*)windows, size);
190
191     if (windows)
192         g_free(windows);
193
194     stacking_set_list();
195 }
196
197 void client_manage_all(void)
198 {
199     guint i, j, nchild;
200     Window w, *children;
201     XWMHints *wmhints;
202     XWindowAttributes attrib;
203
204     XQueryTree(ob_display, RootWindow(ob_display, ob_screen),
205                &w, &w, &children, &nchild);
206
207     /* remove all icon windows from the list */
208     for (i = 0; i < nchild; i++) {
209         if (children[i] == None) continue;
210         wmhints = XGetWMHints(ob_display, children[i]);
211         if (wmhints) {
212             if ((wmhints->flags & IconWindowHint) &&
213                 (wmhints->icon_window != children[i]))
214                 for (j = 0; j < nchild; j++)
215                     if (children[j] == wmhints->icon_window) {
216                         children[j] = None;
217                         break;
218                     }
219             XFree(wmhints);
220         }
221     }
222
223     /* manage windows in reverse order from how they were originally mapped.
224        this is an attempt to manage children windows before their parents, so
225        that when the parent is mapped, it can find the child */
226     for (i = 0; i < nchild; ++i) {
227         if (children[i] == None)
228             continue;
229         if (XGetWindowAttributes(ob_display, children[i], &attrib)) {
230             if (attrib.override_redirect) continue;
231
232             if (attrib.map_state != IsUnmapped)
233                 client_manage(children[i], NULL);
234         }
235     }
236     XFree(children);
237 }
238
239 void client_manage(Window window, ObPrompt *prompt)
240 {
241     ObClient *self;
242     XEvent e;
243     XWindowAttributes attrib;
244     XSetWindowAttributes attrib_set;
245     XWMHints *wmhint;
246     gboolean activate = FALSE;
247     ObAppSettings *settings;
248     gboolean transient = FALSE;
249     Rect place, *monitor;
250     Time launch_time, map_time;
251
252     grab_server(TRUE);
253
254     /* check if it has already been unmapped by the time we started
255        mapping. the grab does a sync so we don't have to here */
256     if (XCheckTypedWindowEvent(ob_display, window, DestroyNotify, &e) ||
257         XCheckTypedWindowEvent(ob_display, window, UnmapNotify, &e))
258     {
259         XPutBackEvent(ob_display, &e);
260
261         ob_debug("Trying to manage unmapped window. Aborting that.\n");
262         grab_server(FALSE);
263         return; /* don't manage it */
264     }
265
266     /* make sure it isn't an override-redirect window */
267     if (!XGetWindowAttributes(ob_display, window, &attrib) ||
268         attrib.override_redirect)
269     {
270         grab_server(FALSE);
271         return; /* don't manage it */
272     }
273
274     /* is the window a docking app */
275     if ((wmhint = XGetWMHints(ob_display, window))) {
276         if ((wmhint->flags & StateHint) &&
277             wmhint->initial_state == WithdrawnState)
278         {
279             dock_add(window, wmhint);
280             grab_server(FALSE);
281             XFree(wmhint);
282             return;
283         }
284         XFree(wmhint);
285     }
286
287     ob_debug("Managing window: 0x%lx\n", window);
288
289     map_time = event_get_server_time();
290
291     /* choose the events we want to receive on the CLIENT window
292        (ObPrompt windows can request events too) */
293     attrib_set.event_mask = CLIENT_EVENTMASK |
294         (prompt ? prompt->event_mask : 0);
295     attrib_set.do_not_propagate_mask = CLIENT_NOPROPAGATEMASK;
296     XChangeWindowAttributes(ob_display, window,
297                             CWEventMask|CWDontPropagate, &attrib_set);
298
299     /* create the ObClient struct, and populate it from the hints on the
300        window */
301     self = g_new0(ObClient, 1);
302     self->obwin.type = Window_Client;
303     self->window = window;
304     self->prompt = prompt;
305
306     /* non-zero defaults */
307     self->wmstate = WithdrawnState; /* make sure it gets updated first time */
308     self->gravity = NorthWestGravity;
309     self->desktop = screen_num_desktops; /* always an invalid value */
310
311     /* get all the stuff off the window */
312     client_get_all(self, TRUE);
313
314     ob_debug("Window type: %d\n", self->type);
315     ob_debug("Window group: 0x%x\n", self->group?self->group->leader:0);
316
317     /* now we have all of the window's information so we can set this up.
318        do this before creating the frame, so it can tell that we are still
319        mapping and doesn't go applying things right away */
320     client_setup_decor_and_functions(self, FALSE);
321
322     /* specify that if we exit, the window should not be destroyed and
323        should be reparented back to root automatically, unless we are managing
324        an internal ObPrompt window  */
325     if (!self->prompt)
326         XChangeSaveSet(ob_display, window, SetModeInsert);
327
328     /* create the decoration frame for the client window */
329     self->frame = frame_new(self);
330
331     frame_grab_client(self->frame);
332
333     /* we've grabbed everything and set everything that we need to at mapping
334        time now */
335     grab_server(FALSE);
336
337     /* per-app settings override stuff from client_get_all, and return the
338        settings for other uses too. the returned settings is a shallow copy,
339        that needs to be freed with g_free(). */
340     settings = client_get_settings_state(self);
341     /* the session should get the last say though */
342     client_restore_session_state(self);
343
344     /* tell startup notification that this app started */
345     launch_time = sn_app_started(self->startup_id, self->class, self->name);
346
347     /* do this after we have a frame.. it uses the frame to help determine the
348        WM_STATE to apply. */
349     client_change_state(self);
350
351     /* add ourselves to the focus order */
352     focus_order_add_new(self);
353
354     /* do this to add ourselves to the stacking list in a non-intrusive way */
355     client_calc_layer(self);
356
357     /* focus the new window? */
358     if (ob_state() != OB_STATE_STARTING &&
359         (!self->session || self->session->focused) &&
360         /* this means focus=true for window is same as config_focus_new=true */
361         ((config_focus_new || (settings && settings->focus == 1)) ||
362          client_search_focus_tree_full(self)) &&
363         /* this checks for focus=false for the window */
364         (!settings || settings->focus != 0) &&
365         focus_valid_target(self, FALSE, FALSE, TRUE, FALSE, FALSE))
366     {
367         activate = TRUE;
368     }
369
370     /* remove the client's border */
371     XSetWindowBorderWidth(ob_display, self->window, 0);
372
373     /* adjust the frame to the client's size before showing or placing
374        the window */
375     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
376     frame_adjust_client_area(self->frame);
377
378     /* where the frame was placed is where the window was originally */
379     place = self->area;
380     monitor = screen_physical_area_monitor(screen_find_monitor(&place));
381
382     /* figure out placement for the window if the window is new */
383     if (ob_state() == OB_STATE_RUNNING) {
384         ob_debug("Positioned: %s @ %d %d\n",
385                  (!self->positioned ? "no" :
386                   (self->positioned == PPosition ? "program specified" :
387                    (self->positioned == USPosition ? "user specified" :
388                     (self->positioned == (PPosition | USPosition) ?
389                      "program + user specified" :
390                      "BADNESS !?")))), place.x, place.y);
391
392         ob_debug("Sized: %s @ %d %d\n",
393                  (!self->sized ? "no" :
394                   (self->sized == PSize ? "program specified" :
395                    (self->sized == USSize ? "user specified" :
396                     (self->sized == (PSize | USSize) ?
397                      "program + user specified" :
398                      "BADNESS !?")))), place.width, place.height);
399
400         /* splash screens are also returned as TRUE for transient,
401            and so will be forced on screen below */
402         transient = place_client(self, &place.x, &place.y, settings);
403
404         /* make sure the window is visible. */
405         client_find_onscreen(self, &place.x, &place.y,
406                              place.width, place.height,
407                              /* non-normal clients has less rules, and
408                                 windows that are being restored from a
409                                 session do also. we can assume you want
410                                 it back where you saved it. Clients saying
411                                 they placed themselves are subjected to
412                                 harder rules, ones that are placed by
413                                 place.c or by the user are allowed partially
414                                 off-screen and on xinerama divides (ie,
415                                 it is up to the placement routines to avoid
416                                 the xinerama divides)
417
418                                 splash screens get "transient" set to TRUE by
419                                 the place_client call
420                              */
421                              ob_state() == OB_STATE_RUNNING &&
422                              (transient ||
423                               (!((self->positioned & USPosition) ||
424                                  (settings && settings->pos_given)) &&
425                                client_normal(self) &&
426                                !self->session &&
427                                /* don't move oldschool fullscreen windows to
428                                   fit inside the struts (fixes Acroread, which
429                                   makes its fullscreen window fit the screen
430                                   but it is not USSize'd or USPosition'd) */
431                                !(self->decorations == 0 &&
432                                  RECT_EQUAL(place, *monitor)))));
433     }
434
435     /* if the window isn't user-sized, then make it fit inside
436        the visible screen area on its monitor. Use basically the same rules
437        for forcing the window on screen in the client_find_onscreen call.
438
439        do this after place_client, it chooses the monitor!
440
441        splash screens get "transient" set to TRUE by
442        the place_client call
443     */
444     if (ob_state() == OB_STATE_RUNNING &&
445         (transient ||
446          (!(self->sized & USSize || self->positioned & USPosition) &&
447           client_normal(self) &&
448           !self->session &&
449           /* don't shrink oldschool fullscreen windows to fit inside the
450              struts (fixes Acroread, which makes its fullscreen window
451              fit the screen but it is not USSize'd or USPosition'd) */
452           !(self->decorations == 0 && RECT_EQUAL(place, *monitor)))))
453     {
454         Rect *a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &place);
455
456         /* get the size of the frame */
457         place.width += self->frame->size.left + self->frame->size.right;
458         place.height += self->frame->size.top + self->frame->size.bottom;
459
460         /* fit the window inside the area */
461         place.width = MIN(place.width, a->width);
462         place.height = MIN(place.height, a->height);
463
464         ob_debug("setting window size to %dx%d\n", place.width, place.height);
465
466         /* get the size of the client back */
467         place.width -= self->frame->size.left + self->frame->size.right;
468         place.height -= self->frame->size.top + self->frame->size.bottom;
469
470         g_free(a);
471     }
472
473     ob_debug("placing window 0x%x at %d, %d with size %d x %d. "
474              "some restrictions may apply\n",
475              self->window, place.x, place.y, place.width, place.height);
476     if (self->session)
477         ob_debug("  but session requested %d, %d  %d x %d instead, "
478                  "overriding\n",
479                  self->session->x, self->session->y,
480                  self->session->w, self->session->h);
481
482     /* do this after the window is placed, so the premax/prefullscreen numbers
483        won't be all wacko!!
484
485        this also places the window
486     */
487     client_apply_startup_state(self, place.x, place.y,
488                                place.width, place.height);
489
490     g_free(monitor);
491     monitor = NULL;
492
493     ob_debug_type(OB_DEBUG_FOCUS, "Going to try activate new window? %s\n",
494                   activate ? "yes" : "no");
495     if (activate) {
496         gboolean raise = FALSE;
497         gboolean relative_focused;
498         gboolean parent_focused;
499
500         parent_focused = (focus_client != NULL &&
501                           client_search_focus_parent(self));
502         relative_focused = (focus_client != NULL &&
503                             (client_search_focus_tree_full(self) != NULL ||
504                              client_search_focus_group_full(self) != NULL));
505
506
507         /* This is focus stealing prevention */
508         ob_debug_type(OB_DEBUG_FOCUS,
509                       "Want to focus new window 0x%x at time %u "
510                       "launched at %u (last user interaction time %u)\n",
511                       self->window, map_time, launch_time,
512                       event_last_user_time);
513
514         if (menu_frame_visible || moveresize_in_progress) {
515             activate = FALSE;
516             raise = TRUE;
517             ob_debug_type(OB_DEBUG_FOCUS,
518                           "Not focusing the window because the user is inside "
519                           "an Openbox menu or is move/resizing a window and "
520                           "we don't want to interrupt them\n");
521         }
522
523         /* if it's on another desktop */
524         else if (!(self->desktop == screen_desktop ||
525                    self->desktop == DESKTOP_ALL) &&
526                  /* the timestamp is from before you changed desktops */
527                  launch_time && screen_desktop_user_time &&
528                  !event_time_after(launch_time, screen_desktop_user_time))
529         {
530             activate = FALSE;
531             raise = TRUE;
532             ob_debug_type(OB_DEBUG_FOCUS,
533                           "Not focusing the window because its on another "
534                           "desktop\n");
535         }
536         /* If something is focused... */
537         else if (focus_client) {
538             /* If the user is working in another window right now, then don't
539                steal focus */
540             if (!parent_focused &&
541                 event_last_user_time && launch_time &&
542                 event_time_after(event_last_user_time, launch_time) &&
543                 event_last_user_time != launch_time &&
544                 event_time_after(event_last_user_time,
545                                  map_time - OB_EVENT_USER_TIME_DELAY))
546             {
547                 activate = FALSE;
548                 ob_debug_type(OB_DEBUG_FOCUS,
549                               "Not focusing the window because the user is "
550                               "working in another window that is not "
551                               "its parent\n");
552             }
553             /* If the new window is a transient (and its relatives aren't
554                focused) */
555             else if (client_has_parent(self) && !relative_focused) {
556                 activate = FALSE;
557                 ob_debug_type(OB_DEBUG_FOCUS,
558                               "Not focusing the window because it is a "
559                               "transient, and its relatives aren't focused\n");
560             }
561             /* Don't steal focus from globally active clients.
562                I stole this idea from KWin. It seems nice.
563              */
564             else if (!(focus_client->can_focus ||
565                        focus_client->focus_notify))
566             {
567                 activate = FALSE;
568                 ob_debug_type(OB_DEBUG_FOCUS,
569                               "Not focusing the window because a globally "
570                               "active client has focus\n");
571             }
572             /* Don't move focus if it's not going to go to this window
573                anyway */
574             else if (client_focus_target(self) != self) {
575                 activate = FALSE;
576                 raise = TRUE;
577                 ob_debug_type(OB_DEBUG_FOCUS,
578                               "Not focusing the window because another window "
579                               "would get the focus anyway\n");
580             }
581             /* Don't move focus if the window is not visible on the current
582                desktop and none of its relatives are focused */
583             else if (!(self->desktop == screen_desktop ||
584                        self->desktop == DESKTOP_ALL) &&
585                      !relative_focused)
586             {
587                 activate = FALSE;
588                 raise = TRUE;
589                 ob_debug_type(OB_DEBUG_FOCUS,
590                               "Not focusing the window because it is on "
591                               "another desktop and no relatives are focused ");
592             }
593         }
594
595         if (!activate) {
596             ob_debug_type(OB_DEBUG_FOCUS,
597                           "Focus stealing prevention activated for %s at "
598                           "time %u (last user interaction time %u)\n",
599                           self->title, map_time, event_last_user_time);
600             /* if the client isn't focused, then hilite it so the user
601                knows it is there */
602             client_hilite(self, TRUE);
603             /* we may want to raise it even tho we're not activating it */
604             if (raise && !client_restore_session_stacking(self))
605                 stacking_raise(CLIENT_AS_WINDOW(self));
606         }
607     }
608     else {
609         /* This may look rather odd. Well it's because new windows are added
610            to the stacking order non-intrusively. If we're not going to focus
611            the new window or hilite it, then we raise it to the top. This will
612            take affect for things that don't get focused like splash screens.
613            Also if you don't have focus_new enabled, then it's going to get
614            raised to the top. Legacy begets legacy I guess?
615         */
616         if (!client_restore_session_stacking(self))
617             stacking_raise(CLIENT_AS_WINDOW(self));
618     }
619
620     mouse_grab_for_client(self, TRUE);
621
622     /* this has to happen before we try focus the window, but we want it to
623        happen after the client's stacking has been determined or it looks bad
624     */
625     {
626         gulong ignore_start;
627         if (!config_focus_under_mouse)
628             ignore_start = event_start_ignore_all_enters();
629
630         client_show(self);
631
632         if (!config_focus_under_mouse)
633             event_end_ignore_all_enters(ignore_start);
634     }
635
636     if (activate) {
637         gboolean stacked = client_restore_session_stacking(self);
638         client_present(self, FALSE, !stacked, TRUE);
639     }
640
641     /* add to client list/map */
642     client_list = g_list_append(client_list, self);
643     g_hash_table_insert(window_map, &self->window, self);
644
645     /* this has to happen after we're in the client_list */
646     if (STRUT_EXISTS(self->strut))
647         screen_update_areas();
648
649     /* update the list hints */
650     client_set_list();
651
652     /* free the ObAppSettings shallow copy */
653     g_free(settings);
654
655     ob_debug("Managed window 0x%lx plate 0x%x (%s)\n",
656              window, self->frame->window, self->class);
657
658     return;
659 }
660
661
662 ObClient *client_fake_manage(Window window)
663 {
664     ObClient *self;
665     ObAppSettings *settings;
666
667     ob_debug("Pretend-managing window: %lx\n", window);
668
669     /* do this minimal stuff to figure out the client's decorations */
670
671     self = g_new0(ObClient, 1);
672     self->window = window;
673
674     client_get_all(self, FALSE);
675     /* per-app settings override stuff, and return the settings for other
676        uses too. this returns a shallow copy that needs to be freed */
677     settings = client_get_settings_state(self);
678
679     client_setup_decor_and_functions(self, FALSE);
680
681     /* create the decoration frame for the client window and adjust its size */
682     self->frame = frame_new(self);
683     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
684
685     ob_debug("gave extents left %d right %d top %d bottom %d\n",
686              self->frame->size.left, self->frame->size.right,
687              self->frame->size.top, self->frame->size.bottom);
688
689     /* free the ObAppSettings shallow copy */
690     g_free(settings);
691
692     return self;
693 }
694
695 void client_unmanage_all(void)
696 {
697     while (client_list)
698         client_unmanage(client_list->data);
699 }
700
701 void client_unmanage(ObClient *self)
702 {
703     GSList *it;
704     gulong ignore_start;
705
706     ob_debug("Unmanaging window: 0x%x plate 0x%x (%s) (%s)\n",
707              self->window, self->frame->window,
708              self->class, self->title ? self->title : "");
709
710     g_assert(self != NULL);
711
712     /* we dont want events no more. do this before hiding the frame so we
713        don't generate more events */
714     XSelectInput(ob_display, self->window, NoEventMask);
715
716     /* ignore enter events from the unmap so it doesnt mess with the focus */
717     if (!config_focus_under_mouse)
718         ignore_start = event_start_ignore_all_enters();
719
720     frame_hide(self->frame);
721     /* flush to send the hide to the server quickly */
722     XFlush(ob_display);
723
724     if (!config_focus_under_mouse)
725         event_end_ignore_all_enters(ignore_start);
726
727     mouse_grab_for_client(self, FALSE);
728
729     /* remove the window from our save set, unless we are managing an internal
730        ObPrompt window */
731     if (!self->prompt)
732         XChangeSaveSet(ob_display, self->window, SetModeDelete);
733
734     /* update the focus lists */
735     focus_order_remove(self);
736     if (client_focused(self)) {
737         /* don't leave an invalid focus_client */
738         focus_client = NULL;
739     }
740
741     /* if we're prompting to kill the client, close that */
742     prompt_unref(self->kill_prompt);
743     self->kill_prompt = NULL;
744
745     client_list = g_list_remove(client_list, self);
746     stacking_remove(self);
747     g_hash_table_remove(window_map, &self->window);
748
749     /* once the client is out of the list, update the struts to remove its
750        influence */
751     if (STRUT_EXISTS(self->strut))
752         screen_update_areas();
753
754     client_call_notifies(self, client_destroy_notifies);
755
756     /* tell our parent(s) that we're gone */
757     for (it = self->parents; it; it = g_slist_next(it))
758         ((ObClient*)it->data)->transients =
759             g_slist_remove(((ObClient*)it->data)->transients,self);
760
761     /* tell our transients that we're gone */
762     for (it = self->transients; it; it = g_slist_next(it)) {
763         ((ObClient*)it->data)->parents =
764             g_slist_remove(((ObClient*)it->data)->parents, self);
765         /* we could be keeping our children in a higher layer */
766         client_calc_layer(it->data);
767     }
768
769     /* remove from its group */
770     if (self->group) {
771         group_remove(self->group, self);
772         self->group = NULL;
773     }
774
775     /* restore the window's original geometry so it is not lost */
776     {
777         Rect a;
778
779         a = self->area;
780
781         if (self->fullscreen)
782             a = self->pre_fullscreen_area;
783         else if (self->max_horz || self->max_vert) {
784             if (self->max_horz) {
785                 a.x = self->pre_max_area.x;
786                 a.width = self->pre_max_area.width;
787             }
788             if (self->max_vert) {
789                 a.y = self->pre_max_area.y;
790                 a.height = self->pre_max_area.height;
791             }
792         }
793
794         self->fullscreen = self->max_horz = self->max_vert = FALSE;
795         /* let it be moved and resized no matter what */
796         self->functions = OB_CLIENT_FUNC_MOVE | OB_CLIENT_FUNC_RESIZE;
797         self->decorations = 0; /* unmanaged windows have no decor */
798
799         /* give the client its border back */
800         XSetWindowBorderWidth(ob_display, self->window, self->border_width);
801
802         client_move_resize(self, a.x, a.y, a.width, a.height);
803     }
804
805     /* reparent the window out of the frame, and free the frame */
806     frame_release_client(self->frame);
807     frame_free(self->frame);
808     self->frame = NULL;
809
810     if (ob_state() != OB_STATE_EXITING) {
811         /* these values should not be persisted across a window
812            unmapping/mapping */
813         PROP_ERASE(self->window, net_wm_desktop);
814         PROP_ERASE(self->window, net_wm_state);
815         PROP_ERASE(self->window, wm_state);
816     } else {
817         /* if we're left in an unmapped state, the client wont be mapped.
818            this is bad, since we will no longer be managing the window on
819            restart */
820         XMapWindow(ob_display, self->window);
821     }
822
823     /* these should not be left on the window ever.  other window managers
824        don't necessarily use them and it will mess them up (like compiz) */
825     PROP_ERASE(self->window, net_wm_visible_name);
826     PROP_ERASE(self->window, net_wm_visible_icon_name);
827
828     /* update the list hints */
829     client_set_list();
830
831     ob_debug("Unmanaged window 0x%lx\n", self->window);
832
833     /* free all data allocated in the client struct */
834     RrImageUnref(self->icon_set);
835     g_slist_free(self->transients);
836     g_free(self->startup_id);
837     g_free(self->wm_command);
838     g_free(self->title);
839     g_free(self->icon_title);
840     g_free(self->original_title);
841     g_free(self->name);
842     g_free(self->class);
843     g_free(self->role);
844     g_free(self->client_machine);
845     g_free(self->sm_client_id);
846     g_free(self);
847 }
848
849 void client_fake_unmanage(ObClient *self)
850 {
851     /* this is all that got allocated to get the decorations */
852
853     frame_free(self->frame);
854     g_free(self);
855 }
856
857 /*! Returns a new structure containing the per-app settings for this client.
858   The returned structure needs to be freed with g_free. */
859 static ObAppSettings *client_get_settings_state(ObClient *self)
860 {
861     ObAppSettings *settings;
862     GSList *it;
863
864     settings = config_create_app_settings();
865
866     for (it = config_per_app_settings; it; it = g_slist_next(it)) {
867         ObAppSettings *app = it->data;
868         gboolean match = TRUE;
869
870         g_assert(app->name != NULL || app->class != NULL);
871
872         /* we know that either name or class is not NULL so it will have to
873            match to use the rule */
874         if (app->name &&
875             !g_pattern_match(app->name, strlen(self->name), self->name, NULL))
876             match = FALSE;
877         else if (app->class &&
878                  !g_pattern_match(app->class,
879                                   strlen(self->class), self->class, NULL))
880             match = FALSE;
881         else if (app->role &&
882                  !g_pattern_match(app->role,
883                                   strlen(self->role), self->role, NULL))
884             match = FALSE;
885         else if ((signed)app->type >= 0 && app->type != self->type)
886             match = FALSE;
887
888         if (match) {
889             ob_debug("Window matching: %s\n", app->name);
890
891             /* copy the settings to our struct, overriding the existing
892                settings if they are not defaults */
893             config_app_settings_copy_non_defaults(app, settings);
894         }
895     }
896
897     if (settings->shade != -1)
898         self->shaded = !!settings->shade;
899     if (settings->decor != -1)
900         self->undecorated = !settings->decor;
901     if (settings->iconic != -1)
902         self->iconic = !!settings->iconic;
903     if (settings->skip_pager != -1)
904         self->skip_pager = !!settings->skip_pager;
905     if (settings->skip_taskbar != -1)
906         self->skip_taskbar = !!settings->skip_taskbar;
907
908     if (settings->max_vert != -1)
909         self->max_vert = !!settings->max_vert;
910     if (settings->max_horz != -1)
911         self->max_horz = !!settings->max_horz;
912
913     if (settings->fullscreen != -1)
914         self->fullscreen = !!settings->fullscreen;
915
916     if (settings->desktop) {
917         if (settings->desktop == DESKTOP_ALL)
918             self->desktop = settings->desktop;
919         else if (settings->desktop > 0 &&
920                  settings->desktop <= screen_num_desktops)
921             self->desktop = settings->desktop - 1;
922     }
923
924     if (settings->layer == -1) {
925         self->below = TRUE;
926         self->above = FALSE;
927     }
928     else if (settings->layer == 0) {
929         self->below = FALSE;
930         self->above = FALSE;
931     }
932     else if (settings->layer == 1) {
933         self->below = FALSE;
934         self->above = TRUE;
935     }
936     return settings;
937 }
938
939 static void client_restore_session_state(ObClient *self)
940 {
941     GList *it;
942
943     ob_debug_type(OB_DEBUG_SM,
944                   "Restore session for client %s\n", self->title);
945
946     if (!(it = session_state_find(self))) {
947         ob_debug_type(OB_DEBUG_SM,
948                       "Session data not found for client %s\n", self->title);
949         return;
950     }
951
952     self->session = it->data;
953
954     ob_debug_type(OB_DEBUG_SM, "Session data loaded for client %s\n",
955                   self->title);
956
957     RECT_SET_POINT(self->area, self->session->x, self->session->y);
958     self->positioned = USPosition;
959     self->sized = USSize;
960     if (self->session->w > 0)
961         self->area.width = self->session->w;
962     if (self->session->h > 0)
963         self->area.height = self->session->h;
964     XResizeWindow(ob_display, self->window,
965                   self->area.width, self->area.height);
966
967     self->desktop = (self->session->desktop == DESKTOP_ALL ?
968                      self->session->desktop :
969                      MIN(screen_num_desktops - 1, self->session->desktop));
970     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
971
972     self->shaded = self->session->shaded;
973     self->iconic = self->session->iconic;
974     self->skip_pager = self->session->skip_pager;
975     self->skip_taskbar = self->session->skip_taskbar;
976     self->fullscreen = self->session->fullscreen;
977     self->above = self->session->above;
978     self->below = self->session->below;
979     self->max_horz = self->session->max_horz;
980     self->max_vert = self->session->max_vert;
981     self->undecorated = self->session->undecorated;
982 }
983
984 static gboolean client_restore_session_stacking(ObClient *self)
985 {
986     GList *it, *mypos;
987
988     if (!self->session) return FALSE;
989
990     mypos = g_list_find(session_saved_state, self->session);
991     if (!mypos) return FALSE;
992
993     /* start above me and look for the first client */
994     for (it = g_list_previous(mypos); it; it = g_list_previous(it)) {
995         GList *cit;
996
997         for (cit = client_list; cit; cit = g_list_next(cit)) {
998             ObClient *c = cit->data;
999             /* found a client that was in the session, so go below it */
1000             if (c->session == it->data) {
1001                 stacking_below(CLIENT_AS_WINDOW(self),
1002                                CLIENT_AS_WINDOW(cit->data));
1003                 return TRUE;
1004             }
1005         }
1006     }
1007     return FALSE;
1008 }
1009
1010 void client_move_onscreen(ObClient *self, gboolean rude)
1011 {
1012     gint x = self->area.x;
1013     gint y = self->area.y;
1014     if (client_find_onscreen(self, &x, &y,
1015                              self->area.width,
1016                              self->area.height, rude)) {
1017         client_move(self, x, y);
1018     }
1019 }
1020
1021 gboolean client_find_onscreen(ObClient *self, gint *x, gint *y, gint w, gint h,
1022                               gboolean rude)
1023 {
1024     gint ox = *x, oy = *y;
1025     gboolean rudel = rude, ruder = rude, rudet = rude, rudeb = rude;
1026     gint fw, fh;
1027     Rect desired;
1028     guint i;
1029     gboolean found_mon;
1030
1031     RECT_SET(desired, *x, *y, w, h);
1032     frame_rect_to_frame(self->frame, &desired);
1033
1034     /* get where the frame would be */
1035     frame_client_gravity(self->frame, x, y);
1036
1037     /* get the requested size of the window with decorations */
1038     fw = self->frame->size.left + w + self->frame->size.right;
1039     fh = self->frame->size.top + h + self->frame->size.bottom;
1040
1041     /* If rudeness wasn't requested, then still be rude in a given direction
1042        if the client is not moving, only resizing in that direction */
1043     if (!rude) {
1044         Point oldtl, oldtr, oldbl, oldbr;
1045         Point newtl, newtr, newbl, newbr;
1046         gboolean stationary_l, stationary_r, stationary_t, stationary_b;
1047
1048         POINT_SET(oldtl, self->frame->area.x, self->frame->area.y);
1049         POINT_SET(oldbr, self->frame->area.x + self->frame->area.width - 1,
1050                   self->frame->area.y + self->frame->area.height - 1);
1051         POINT_SET(oldtr, oldbr.x, oldtl.y);
1052         POINT_SET(oldbl, oldtl.x, oldbr.y);
1053
1054         POINT_SET(newtl, *x, *y);
1055         POINT_SET(newbr, *x + fw - 1, *y + fh - 1);
1056         POINT_SET(newtr, newbr.x, newtl.y);
1057         POINT_SET(newbl, newtl.x, newbr.y);
1058
1059         /* is it moving or just resizing from some corner? */
1060         stationary_l = oldtl.x == newtl.x;
1061         stationary_r = oldtr.x == newtr.x;
1062         stationary_t = oldtl.y == newtl.y;
1063         stationary_b = oldbl.y == newbl.y;
1064
1065         /* if left edge is growing and didnt move right edge */
1066         if (stationary_r && newtl.x < oldtl.x)
1067             rudel = TRUE;
1068         /* if right edge is growing and didnt move left edge */
1069         if (stationary_l && newtr.x > oldtr.x)
1070             ruder = TRUE;
1071         /* if top edge is growing and didnt move bottom edge */
1072         if (stationary_b && newtl.y < oldtl.y)
1073             rudet = TRUE;
1074         /* if bottom edge is growing and didnt move top edge */
1075         if (stationary_t && newbl.y > oldbl.y)
1076             rudeb = TRUE;
1077     }
1078
1079     /* we iterate through every monitor that the window is at least partially
1080        on, to make sure it is obeying the rules on them all
1081
1082        if the window does not appear on any monitors, then use the first one
1083     */
1084     found_mon = FALSE;
1085     for (i = 0; i < screen_num_monitors; ++i) {
1086         Rect *a;
1087
1088         if (!screen_physical_area_monitor_contains(i, &desired)) {
1089             if (i < screen_num_monitors - 1 || found_mon)
1090                 continue;
1091
1092             /* the window is not inside any monitor! so just use the first
1093                one */
1094             a = screen_area(self->desktop, 0, NULL);
1095         } else {
1096             found_mon = TRUE;
1097             a = screen_area(self->desktop, SCREEN_AREA_ONE_MONITOR, &desired);
1098         }
1099
1100         /* This makes sure windows aren't entirely outside of the screen so you
1101            can't see them at all.
1102            It makes sure 10% of the window is on the screen at least. And don't
1103            let it move itself off the top of the screen, which would hide the
1104            titlebar on you. (The user can still do this if they want too, it's
1105            only limiting the application.
1106         */
1107         if (client_normal(self)) {
1108             if (!self->strut.right && *x + fw/10 >= a->x + a->width - 1)
1109                 *x = a->x + a->width - fw/10;
1110             if (!self->strut.bottom && *y + fh/10 >= a->y + a->height - 1)
1111                 *y = a->y + a->height - fh/10;
1112             if (!self->strut.left && *x + fw*9/10 - 1 < a->x)
1113                 *x = a->x - fw*9/10;
1114             if (!self->strut.top && *y + fh*9/10 - 1 < a->y)
1115                 *y = a->y - fh*9/10;
1116         }
1117
1118         /* This here doesn't let windows even a pixel outside the
1119            struts/screen. When called from client_manage, programs placing
1120            themselves are forced completely onscreen, while things like
1121            xterm -geometry resolution-width/2 will work fine. Trying to
1122            place it completely offscreen will be handled in the above code.
1123            Sorry for this confused comment, i am tired. */
1124         if (rudel && !self->strut.left && *x < a->x) *x = a->x;
1125         if (ruder && !self->strut.right && *x + fw > a->x + a->width)
1126             *x = a->x + MAX(0, a->width - fw);
1127
1128         if (rudet && !self->strut.top && *y < a->y) *y = a->y;
1129         if (rudeb && !self->strut.bottom && *y + fh > a->y + a->height)
1130             *y = a->y + MAX(0, a->height - fh);
1131
1132         g_free(a);
1133     }
1134
1135     /* get where the client should be */
1136     frame_frame_gravity(self->frame, x, y);
1137
1138     return ox != *x || oy != *y;
1139 }
1140
1141 static void client_get_all(ObClient *self, gboolean real)
1142 {
1143     /* this is needed for the frame to set itself up */
1144     client_get_area(self);
1145
1146     /* these things can change the decor and functions of the window */
1147
1148     client_get_mwm_hints(self);
1149     /* this can change the mwmhints for special cases */
1150     client_get_type_and_transientness(self);
1151     client_get_state(self);
1152     client_update_normal_hints(self);
1153
1154     /* get the session related properties, these can change decorations
1155        from per-app settings */
1156     client_get_session_ids(self);
1157
1158     /* now we got everything that can affect the decorations */
1159     if (!real)
1160         return;
1161
1162     /* get this early so we have it for debugging */
1163     client_update_title(self);
1164
1165     client_update_protocols(self);
1166
1167     client_update_wmhints(self);
1168     /* this may have already been called from client_update_wmhints */
1169     if (!self->parents && !self->transient_for_group)
1170         client_update_transient_for(self);
1171
1172     client_get_startup_id(self);
1173     client_get_desktop(self);/* uses transient data/group/startup id if a
1174                                 desktop is not specified */
1175     client_get_shaped(self);
1176
1177     {
1178         /* a couple type-based defaults for new windows */
1179
1180         /* this makes sure that these windows appear on all desktops */
1181         if (self->type == OB_CLIENT_TYPE_DESKTOP)
1182             self->desktop = DESKTOP_ALL;
1183     }
1184
1185 #ifdef SYNC
1186     client_update_sync_request_counter(self);
1187 #endif
1188
1189     client_get_colormap(self);
1190     client_update_strut(self);
1191     client_update_icons(self);
1192     client_update_icon_geometry(self);
1193 }
1194
1195 static void client_get_startup_id(ObClient *self)
1196 {
1197     if (!(PROP_GETS(self->window, net_startup_id, utf8, &self->startup_id)))
1198         if (self->group)
1199             PROP_GETS(self->group->leader,
1200                       net_startup_id, utf8, &self->startup_id);
1201 }
1202
1203 static void client_get_area(ObClient *self)
1204 {
1205     XWindowAttributes wattrib;
1206     Status ret;
1207
1208     ret = XGetWindowAttributes(ob_display, self->window, &wattrib);
1209     g_assert(ret != BadWindow);
1210
1211     RECT_SET(self->area, wattrib.x, wattrib.y, wattrib.width, wattrib.height);
1212     POINT_SET(self->root_pos, wattrib.x, wattrib.y);
1213     self->border_width = wattrib.border_width;
1214
1215     ob_debug("client area: %d %d  %d %d  bw %d\n", wattrib.x, wattrib.y,
1216              wattrib.width, wattrib.height, wattrib.border_width);
1217 }
1218
1219 static void client_get_desktop(ObClient *self)
1220 {
1221     guint32 d = screen_num_desktops; /* an always-invalid value */
1222
1223     if (PROP_GET32(self->window, net_wm_desktop, cardinal, &d)) {
1224         if (d >= screen_num_desktops && d != DESKTOP_ALL)
1225             self->desktop = screen_num_desktops - 1;
1226         else
1227             self->desktop = d;
1228         ob_debug("client requested desktop 0x%x\n", self->desktop);
1229     } else {
1230         GSList *it;
1231         gboolean first = TRUE;
1232         guint all = screen_num_desktops; /* not a valid value */
1233
1234         /* if they are all on one desktop, then open it on the
1235            same desktop */
1236         for (it = self->parents; it; it = g_slist_next(it)) {
1237             ObClient *c = it->data;
1238
1239             if (c->desktop == DESKTOP_ALL) continue;
1240
1241             if (first) {
1242                 all = c->desktop;
1243                 first = FALSE;
1244             }
1245             else if (all != c->desktop)
1246                 all = screen_num_desktops; /* make it invalid */
1247         }
1248         if (all != screen_num_desktops) {
1249             self->desktop = all;
1250
1251             ob_debug("client desktop set from parents: 0x%x\n",
1252                      self->desktop);
1253         }
1254         /* try get from the startup-notification protocol */
1255         else if (sn_get_desktop(self->startup_id, &self->desktop)) {
1256             if (self->desktop >= screen_num_desktops &&
1257                 self->desktop != DESKTOP_ALL)
1258                 self->desktop = screen_num_desktops - 1;
1259             ob_debug("client desktop set from startup-notification: 0x%x\n",
1260                      self->desktop);
1261         }
1262         /* defaults to the current desktop */
1263         else {
1264             self->desktop = screen_desktop;
1265             ob_debug("client desktop set to the current desktop: %d\n",
1266                      self->desktop);
1267         }
1268     }
1269 }
1270
1271 static void client_get_state(ObClient *self)
1272 {
1273     guint32 *state;
1274     guint num;
1275
1276     if (PROP_GETA32(self->window, net_wm_state, atom, &state, &num)) {
1277         gulong i;
1278         for (i = 0; i < num; ++i) {
1279             if (state[i] == prop_atoms.net_wm_state_modal)
1280                 self->modal = TRUE;
1281             else if (state[i] == prop_atoms.net_wm_state_shaded)
1282                 self->shaded = TRUE;
1283             else if (state[i] == prop_atoms.net_wm_state_hidden)
1284                 self->iconic = TRUE;
1285             else if (state[i] == prop_atoms.net_wm_state_skip_taskbar)
1286                 self->skip_taskbar = TRUE;
1287             else if (state[i] == prop_atoms.net_wm_state_skip_pager)
1288                 self->skip_pager = TRUE;
1289             else if (state[i] == prop_atoms.net_wm_state_fullscreen)
1290                 self->fullscreen = TRUE;
1291             else if (state[i] == prop_atoms.net_wm_state_maximized_vert)
1292                 self->max_vert = TRUE;
1293             else if (state[i] == prop_atoms.net_wm_state_maximized_horz)
1294                 self->max_horz = TRUE;
1295             else if (state[i] == prop_atoms.net_wm_state_above)
1296                 self->above = TRUE;
1297             else if (state[i] == prop_atoms.net_wm_state_below)
1298                 self->below = TRUE;
1299             else if (state[i] == prop_atoms.net_wm_state_demands_attention)
1300                 self->demands_attention = TRUE;
1301             else if (state[i] == prop_atoms.ob_wm_state_undecorated)
1302                 self->undecorated = TRUE;
1303         }
1304
1305         g_free(state);
1306     }
1307 }
1308
1309 static void client_get_shaped(ObClient *self)
1310 {
1311     self->shaped = FALSE;
1312 #ifdef SHAPE
1313     if (extensions_shape) {
1314         gint foo;
1315         guint ufoo;
1316         gint s;
1317
1318         XShapeSelectInput(ob_display, self->window, ShapeNotifyMask);
1319
1320         XShapeQueryExtents(ob_display, self->window, &s, &foo,
1321                            &foo, &ufoo, &ufoo, &foo, &foo, &foo, &ufoo,
1322                            &ufoo);
1323         self->shaped = !!s;
1324     }
1325 #endif
1326 }
1327
1328 void client_update_transient_for(ObClient *self)
1329 {
1330     Window t = None;
1331     ObClient *target = NULL;
1332     gboolean trangroup = FALSE;
1333
1334     if (XGetTransientForHint(ob_display, self->window, &t)) {
1335         if (t != self->window) { /* can't be transient to itself! */
1336             target = g_hash_table_lookup(window_map, &t);
1337             /* if this happens then we need to check for it */
1338             g_assert(target != self);
1339             if (target && !WINDOW_IS_CLIENT(target)) {
1340                 /* watch out for windows with a parent that is something
1341                    different, like a dockapp for example */
1342                 target = NULL;
1343             }
1344         }
1345
1346         /* Setting the transient_for to Root is actually illegal, however
1347            applications from time have done this to specify transient for
1348            their group */
1349         if (!target && self->group && t == RootWindow(ob_display, ob_screen))
1350             trangroup = TRUE;
1351     } else if (self->group && self->transient)
1352         trangroup = TRUE;
1353
1354     client_update_transient_tree(self, self->group, self->group,
1355                                  self->transient_for_group, trangroup,
1356                                  client_direct_parent(self), target);
1357     self->transient_for_group = trangroup;
1358
1359 }
1360
1361 static void client_update_transient_tree(ObClient *self,
1362                                          ObGroup *oldgroup, ObGroup *newgroup,
1363                                          gboolean oldgtran, gboolean newgtran,
1364                                          ObClient* oldparent,
1365                                          ObClient *newparent)
1366 {
1367     GSList *it, *next;
1368     ObClient *c;
1369
1370     g_assert(!oldgtran || oldgroup);
1371     g_assert(!newgtran || newgroup);
1372     g_assert((!oldgtran && !oldparent) ||
1373              (oldgtran && !oldparent) ||
1374              (!oldgtran && oldparent));
1375     g_assert((!newgtran && !newparent) ||
1376              (newgtran && !newparent) ||
1377              (!newgtran && newparent));
1378
1379     /* * *
1380       Group transient windows are not allowed to have other group
1381       transient windows as their children.
1382       * * */
1383
1384
1385     /* No change has occured */
1386     if (oldgroup == newgroup &&
1387         oldgtran == newgtran &&
1388         oldparent == newparent) return;
1389
1390     /** Remove the client from the transient tree **/
1391
1392     for (it = self->transients; it; it = next) {
1393         next = g_slist_next(it);
1394         c = it->data;
1395         self->transients = g_slist_delete_link(self->transients, it);
1396         c->parents = g_slist_remove(c->parents, self);
1397     }
1398     for (it = self->parents; it; it = next) {
1399         next = g_slist_next(it);
1400         c = it->data;
1401         self->parents = g_slist_delete_link(self->parents, it);
1402         c->transients = g_slist_remove(c->transients, self);
1403     }
1404
1405     /** Re-add the client to the transient tree **/
1406
1407     /* If we're transient for a group then we need to add ourselves to all our
1408        parents */
1409     if (newgtran) {
1410         for (it = newgroup->members; it; it = g_slist_next(it)) {
1411             c = it->data;
1412             if (c != self &&
1413                 !client_search_top_direct_parent(c)->transient_for_group &&
1414                 client_normal(c))
1415             {
1416                 c->transients = g_slist_prepend(c->transients, self);
1417                 self->parents = g_slist_prepend(self->parents, c);
1418             }
1419         }
1420     }
1421
1422     /* If we are now transient for a single window we need to add ourselves to
1423        its children
1424
1425        WARNING: Cyclical transient-ness is possible if two windows are
1426        transient for eachother.
1427     */
1428     else if (newparent &&
1429              /* don't make ourself its child if it is already our child */
1430              !client_is_direct_child(self, newparent) &&
1431              client_normal(newparent))
1432     {
1433         newparent->transients = g_slist_prepend(newparent->transients, self);
1434         self->parents = g_slist_prepend(self->parents, newparent);
1435     }
1436
1437     /* Add any group transient windows to our children. But if we're transient
1438        for the group, then other group transients are not our children.
1439
1440        WARNING: Cyclical transient-ness is possible. For e.g. if:
1441        A is transient for the group
1442        B is transient for A
1443        C is transient for B
1444        A can't be transient for C or we have a cycle
1445     */
1446     if (!newgtran && newgroup &&
1447         (!newparent ||
1448          !client_search_top_direct_parent(newparent)->transient_for_group) &&
1449         client_normal(self))
1450     {
1451         for (it = newgroup->members; it; it = g_slist_next(it)) {
1452             c = it->data;
1453             if (c != self && c->transient_for_group &&
1454                 /* Don't make it our child if it is already our parent */
1455                 !client_is_direct_child(c, self))
1456             {
1457                 self->transients = g_slist_prepend(self->transients, c);
1458                 c->parents = g_slist_prepend(c->parents, self);
1459             }
1460         }
1461     }
1462
1463     /** If we change our group transient-ness, our children change their
1464         effective group transient-ness, which affects how they relate to other
1465         group windows **/
1466
1467     for (it = self->transients; it; it = g_slist_next(it)) {
1468         c = it->data;
1469         if (!c->transient_for_group)
1470             client_update_transient_tree(c, c->group, c->group,
1471                                          c->transient_for_group,
1472                                          c->transient_for_group,
1473                                          client_direct_parent(c),
1474                                          client_direct_parent(c));
1475     }
1476 }
1477
1478 static void client_get_mwm_hints(ObClient *self)
1479 {
1480     guint num;
1481     guint32 *hints;
1482
1483     self->mwmhints.flags = 0; /* default to none */
1484
1485     if (PROP_GETA32(self->window, motif_wm_hints, motif_wm_hints,
1486                     &hints, &num)) {
1487         if (num >= OB_MWM_ELEMENTS) {
1488             self->mwmhints.flags = hints[0];
1489             self->mwmhints.functions = hints[1];
1490             self->mwmhints.decorations = hints[2];
1491         }
1492         g_free(hints);
1493     }
1494 }
1495
1496 void client_get_type_and_transientness(ObClient *self)
1497 {
1498     guint num, i;
1499     guint32 *val;
1500     Window t;
1501
1502     self->type = -1;
1503     self->transient = FALSE;
1504
1505     if (PROP_GETA32(self->window, net_wm_window_type, atom, &val, &num)) {
1506         /* use the first value that we know about in the array */
1507         for (i = 0; i < num; ++i) {
1508             if (val[i] == prop_atoms.net_wm_window_type_desktop)
1509                 self->type = OB_CLIENT_TYPE_DESKTOP;
1510             else if (val[i] == prop_atoms.net_wm_window_type_dock)
1511                 self->type = OB_CLIENT_TYPE_DOCK;
1512             else if (val[i] == prop_atoms.net_wm_window_type_toolbar)
1513                 self->type = OB_CLIENT_TYPE_TOOLBAR;
1514             else if (val[i] == prop_atoms.net_wm_window_type_menu)
1515                 self->type = OB_CLIENT_TYPE_MENU;
1516             else if (val[i] == prop_atoms.net_wm_window_type_utility)
1517                 self->type = OB_CLIENT_TYPE_UTILITY;
1518             else if (val[i] == prop_atoms.net_wm_window_type_splash)
1519                 self->type = OB_CLIENT_TYPE_SPLASH;
1520             else if (val[i] == prop_atoms.net_wm_window_type_dialog)
1521                 self->type = OB_CLIENT_TYPE_DIALOG;
1522             else if (val[i] == prop_atoms.net_wm_window_type_normal)
1523                 self->type = OB_CLIENT_TYPE_NORMAL;
1524             else if (val[i] == prop_atoms.kde_net_wm_window_type_override) {
1525                 /* prevent this window from getting any decor or
1526                    functionality */
1527                 self->mwmhints.flags &= (OB_MWM_FLAG_FUNCTIONS |
1528                                          OB_MWM_FLAG_DECORATIONS);
1529                 self->mwmhints.decorations = 0;
1530                 self->mwmhints.functions = 0;
1531             }
1532             if (self->type != (ObClientType) -1)
1533                 break; /* grab the first legit type */
1534         }
1535         g_free(val);
1536     }
1537
1538     if (XGetTransientForHint(ob_display, self->window, &t))
1539         self->transient = TRUE;
1540
1541     if (self->type == (ObClientType) -1) {
1542         /*the window type hint was not set, which means we either classify
1543           ourself as a normal window or a dialog, depending on if we are a
1544           transient. */
1545         if (self->transient)
1546             self->type = OB_CLIENT_TYPE_DIALOG;
1547         else
1548             self->type = OB_CLIENT_TYPE_NORMAL;
1549     }
1550
1551     /* then, based on our type, we can update our transientness.. */
1552     if (self->type == OB_CLIENT_TYPE_DIALOG ||
1553         self->type == OB_CLIENT_TYPE_TOOLBAR ||
1554         self->type == OB_CLIENT_TYPE_MENU ||
1555         self->type == OB_CLIENT_TYPE_UTILITY)
1556     {
1557         self->transient = TRUE;
1558     }
1559 }
1560
1561 void client_update_protocols(ObClient *self)
1562 {
1563     guint32 *proto;
1564     guint num_return, i;
1565
1566     self->focus_notify = FALSE;
1567     self->delete_window = FALSE;
1568
1569     if (PROP_GETA32(self->window, wm_protocols, atom, &proto, &num_return)) {
1570         for (i = 0; i < num_return; ++i) {
1571             if (proto[i] == prop_atoms.wm_delete_window)
1572                 /* this means we can request the window to close */
1573                 self->delete_window = TRUE;
1574             else if (proto[i] == prop_atoms.wm_take_focus)
1575                 /* if this protocol is requested, then the window will be
1576                    notified whenever we want it to receive focus */
1577                 self->focus_notify = TRUE;
1578             else if (proto[i] == prop_atoms.net_wm_ping)
1579                 /* if this protocol is requested, then the window will allow
1580                    pings to determine if it is still alive */
1581                 self->ping = TRUE;
1582 #ifdef SYNC
1583             else if (proto[i] == prop_atoms.net_wm_sync_request)
1584                 /* if this protocol is requested, then resizing the
1585                    window will be synchronized between the frame and the
1586                    client */
1587                 self->sync_request = TRUE;
1588 #endif
1589         }
1590         g_free(proto);
1591     }
1592 }
1593
1594 #ifdef SYNC
1595 void client_update_sync_request_counter(ObClient *self)
1596 {
1597     guint32 i;
1598
1599     if (PROP_GET32(self->window, net_wm_sync_request_counter, cardinal, &i)) {
1600         self->sync_counter = i;
1601     } else
1602         self->sync_counter = None;
1603 }
1604 #endif
1605
1606 static void client_get_colormap(ObClient *self)
1607 {
1608     XWindowAttributes wa;
1609
1610     if (XGetWindowAttributes(ob_display, self->window, &wa))
1611         client_update_colormap(self, wa.colormap);
1612 }
1613
1614 void client_update_colormap(ObClient *self, Colormap colormap)
1615 {
1616     if (colormap == self->colormap) return;
1617
1618     ob_debug("Setting client %s colormap: 0x%x\n", self->title, colormap);
1619
1620     if (client_focused(self)) {
1621         screen_install_colormap(self, FALSE); /* uninstall old one */
1622         self->colormap = colormap;
1623         screen_install_colormap(self, TRUE); /* install new one */
1624     } else
1625         self->colormap = colormap;
1626 }
1627
1628 void client_update_normal_hints(ObClient *self)
1629 {
1630     XSizeHints size;
1631     glong ret;
1632
1633     /* defaults */
1634     self->min_ratio = 0.0f;
1635     self->max_ratio = 0.0f;
1636     SIZE_SET(self->size_inc, 1, 1);
1637     SIZE_SET(self->base_size, -1, -1);
1638     SIZE_SET(self->min_size, 0, 0);
1639     SIZE_SET(self->max_size, G_MAXINT, G_MAXINT);
1640
1641     /* get the hints from the window */
1642     if (XGetWMNormalHints(ob_display, self->window, &size, &ret)) {
1643         /* normal windows can't request placement! har har
1644         if (!client_normal(self))
1645         */
1646         self->positioned = (size.flags & (PPosition|USPosition));
1647         self->sized = (size.flags & (PSize|USSize));
1648
1649         if (size.flags & PWinGravity)
1650             self->gravity = size.win_gravity;
1651
1652         if (size.flags & PAspect) {
1653             if (size.min_aspect.y)
1654                 self->min_ratio =
1655                     (gfloat) size.min_aspect.x / size.min_aspect.y;
1656             if (size.max_aspect.y)
1657                 self->max_ratio =
1658                     (gfloat) size.max_aspect.x / size.max_aspect.y;
1659         }
1660
1661         if (size.flags & PMinSize)
1662             SIZE_SET(self->min_size, size.min_width, size.min_height);
1663
1664         if (size.flags & PMaxSize)
1665             SIZE_SET(self->max_size, size.max_width, size.max_height);
1666
1667         if (size.flags & PBaseSize)
1668             SIZE_SET(self->base_size, size.base_width, size.base_height);
1669
1670         if (size.flags & PResizeInc && size.width_inc && size.height_inc)
1671             SIZE_SET(self->size_inc, size.width_inc, size.height_inc);
1672
1673         ob_debug("Normal hints: min size (%d %d) max size (%d %d)\n   "
1674                  "size inc (%d %d) base size (%d %d)\n",
1675                  self->min_size.width, self->min_size.height,
1676                  self->max_size.width, self->max_size.height,
1677                  self->size_inc.width, self->size_inc.height,
1678                  self->base_size.width, self->base_size.height);
1679     }
1680     else
1681         ob_debug("Normal hints: not set\n");
1682 }
1683
1684 void client_setup_decor_and_functions(ObClient *self, gboolean reconfig)
1685 {
1686     /* start with everything (cept fullscreen) */
1687     self->decorations =
1688         (OB_FRAME_DECOR_TITLEBAR |
1689          OB_FRAME_DECOR_HANDLE |
1690          OB_FRAME_DECOR_GRIPS |
1691          OB_FRAME_DECOR_BORDER |
1692          OB_FRAME_DECOR_ICON |
1693          OB_FRAME_DECOR_ALLDESKTOPS |
1694          OB_FRAME_DECOR_ICONIFY |
1695          OB_FRAME_DECOR_MAXIMIZE |
1696          OB_FRAME_DECOR_SHADE |
1697          OB_FRAME_DECOR_CLOSE);
1698     self->functions =
1699         (OB_CLIENT_FUNC_RESIZE |
1700          OB_CLIENT_FUNC_MOVE |
1701          OB_CLIENT_FUNC_ICONIFY |
1702          OB_CLIENT_FUNC_MAXIMIZE |
1703          OB_CLIENT_FUNC_SHADE |
1704          OB_CLIENT_FUNC_CLOSE |
1705          OB_CLIENT_FUNC_BELOW |
1706          OB_CLIENT_FUNC_ABOVE |
1707          OB_CLIENT_FUNC_UNDECORATE);
1708
1709     if (!(self->min_size.width < self->max_size.width ||
1710           self->min_size.height < self->max_size.height))
1711         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1712
1713     switch (self->type) {
1714     case OB_CLIENT_TYPE_NORMAL:
1715         /* normal windows retain all of the possible decorations and
1716            functionality, and can be fullscreen */
1717         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1718         break;
1719
1720     case OB_CLIENT_TYPE_DIALOG:
1721         /* sometimes apps make dialog windows fullscreen for some reason (for
1722            e.g. kpdf does this..) */
1723         self->functions |= OB_CLIENT_FUNC_FULLSCREEN;
1724         break;
1725
1726     case OB_CLIENT_TYPE_UTILITY:
1727         /* these windows don't have anything added or removed by default */
1728         break;
1729
1730     case OB_CLIENT_TYPE_MENU:
1731     case OB_CLIENT_TYPE_TOOLBAR:
1732         /* these windows can't iconify or maximize */
1733         self->decorations &= ~(OB_FRAME_DECOR_ICONIFY |
1734                                OB_FRAME_DECOR_MAXIMIZE);
1735         self->functions &= ~(OB_CLIENT_FUNC_ICONIFY |
1736                              OB_CLIENT_FUNC_MAXIMIZE);
1737         break;
1738
1739     case OB_CLIENT_TYPE_SPLASH:
1740         /* these don't get get any decorations, and the only thing you can
1741            do with them is move them */
1742         self->decorations = 0;
1743         self->functions = OB_CLIENT_FUNC_MOVE;
1744         break;
1745
1746     case OB_CLIENT_TYPE_DESKTOP:
1747         /* these windows are not manipulated by the window manager */
1748         self->decorations = 0;
1749         self->functions = 0;
1750         break;
1751
1752     case OB_CLIENT_TYPE_DOCK:
1753         /* these windows are not manipulated by the window manager, but they
1754            can set below layer which has a special meaning */
1755         self->decorations = 0;
1756         self->functions = OB_CLIENT_FUNC_BELOW;
1757         break;
1758     }
1759
1760     /* Mwm Hints are applied subtractively to what has already been chosen for
1761        decor and functionality */
1762     if (self->mwmhints.flags & OB_MWM_FLAG_DECORATIONS) {
1763         if (! (self->mwmhints.decorations & OB_MWM_DECOR_ALL)) {
1764             if (! ((self->mwmhints.decorations & OB_MWM_DECOR_HANDLE) ||
1765                    (self->mwmhints.decorations & OB_MWM_DECOR_TITLE)))
1766             {
1767                 /* if the mwm hints request no handle or title, then all
1768                    decorations are disabled, but keep the border if that's
1769                    specified */
1770                 if (self->mwmhints.decorations & OB_MWM_DECOR_BORDER)
1771                     self->decorations = OB_FRAME_DECOR_BORDER;
1772                 else
1773                     self->decorations = 0;
1774             }
1775         }
1776     }
1777
1778     if (self->mwmhints.flags & OB_MWM_FLAG_FUNCTIONS) {
1779         if (! (self->mwmhints.functions & OB_MWM_FUNC_ALL)) {
1780             if (! (self->mwmhints.functions & OB_MWM_FUNC_RESIZE))
1781                 self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1782             if (! (self->mwmhints.functions & OB_MWM_FUNC_MOVE))
1783                 self->functions &= ~OB_CLIENT_FUNC_MOVE;
1784             /* dont let mwm hints kill any buttons
1785                if (! (self->mwmhints.functions & OB_MWM_FUNC_ICONIFY))
1786                self->functions &= ~OB_CLIENT_FUNC_ICONIFY;
1787                if (! (self->mwmhints.functions & OB_MWM_FUNC_MAXIMIZE))
1788                self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1789             */
1790             /* dont let mwm hints kill the close button
1791                if (! (self->mwmhints.functions & MwmFunc_Close))
1792                self->functions &= ~OB_CLIENT_FUNC_CLOSE; */
1793         }
1794     }
1795
1796     if (!(self->functions & OB_CLIENT_FUNC_SHADE))
1797         self->decorations &= ~OB_FRAME_DECOR_SHADE;
1798     if (!(self->functions & OB_CLIENT_FUNC_ICONIFY))
1799         self->decorations &= ~OB_FRAME_DECOR_ICONIFY;
1800     if (!(self->functions & OB_CLIENT_FUNC_RESIZE))
1801         self->decorations &= ~(OB_FRAME_DECOR_GRIPS | OB_FRAME_DECOR_HANDLE);
1802
1803     /* can't maximize without moving/resizing */
1804     if (!((self->functions & OB_CLIENT_FUNC_MAXIMIZE) &&
1805           (self->functions & OB_CLIENT_FUNC_MOVE) &&
1806           (self->functions & OB_CLIENT_FUNC_RESIZE))) {
1807         self->functions &= ~OB_CLIENT_FUNC_MAXIMIZE;
1808         self->decorations &= ~OB_FRAME_DECOR_MAXIMIZE;
1809     }
1810
1811     if (self->max_horz && self->max_vert) {
1812         /* you can't resize fully maximized windows */
1813         self->functions &= ~OB_CLIENT_FUNC_RESIZE;
1814         /* kill the handle on fully maxed windows */
1815         self->decorations &= ~(OB_FRAME_DECOR_HANDLE | OB_FRAME_DECOR_GRIPS);
1816     }
1817
1818     /* If there are no decorations to remove, don't allow the user to try
1819        toggle the state */
1820     if (self->decorations == 0)
1821         self->functions &= ~OB_CLIENT_FUNC_UNDECORATE;
1822
1823     /* finally, the user can have requested no decorations, which overrides
1824        everything (but doesnt give it a border if it doesnt have one) */
1825     if (self->undecorated)
1826         self->decorations = 0;
1827
1828     /* if we don't have a titlebar, then we cannot shade! */
1829     if (!(self->decorations & OB_FRAME_DECOR_TITLEBAR))
1830         self->functions &= ~OB_CLIENT_FUNC_SHADE;
1831
1832     /* now we need to check against rules for the client's current state */
1833     if (self->fullscreen) {
1834         self->functions &= (OB_CLIENT_FUNC_CLOSE |
1835                             OB_CLIENT_FUNC_FULLSCREEN |
1836                             OB_CLIENT_FUNC_ICONIFY);
1837         self->decorations = 0;
1838     }
1839
1840     client_change_allowed_actions(self);
1841
1842     if (reconfig)
1843         /* force reconfigure to make sure decorations are updated */
1844         client_reconfigure(self, TRUE);
1845 }
1846
1847 static void client_change_allowed_actions(ObClient *self)
1848 {
1849     gulong actions[12];
1850     gint num = 0;
1851
1852     /* desktop windows are kept on all desktops */
1853     if (self->type != OB_CLIENT_TYPE_DESKTOP)
1854         actions[num++] = prop_atoms.net_wm_action_change_desktop;
1855
1856     if (self->functions & OB_CLIENT_FUNC_SHADE)
1857         actions[num++] = prop_atoms.net_wm_action_shade;
1858     if (self->functions & OB_CLIENT_FUNC_CLOSE)
1859         actions[num++] = prop_atoms.net_wm_action_close;
1860     if (self->functions & OB_CLIENT_FUNC_MOVE)
1861         actions[num++] = prop_atoms.net_wm_action_move;
1862     if (self->functions & OB_CLIENT_FUNC_ICONIFY)
1863         actions[num++] = prop_atoms.net_wm_action_minimize;
1864     if (self->functions & OB_CLIENT_FUNC_RESIZE)
1865         actions[num++] = prop_atoms.net_wm_action_resize;
1866     if (self->functions & OB_CLIENT_FUNC_FULLSCREEN)
1867         actions[num++] = prop_atoms.net_wm_action_fullscreen;
1868     if (self->functions & OB_CLIENT_FUNC_MAXIMIZE) {
1869         actions[num++] = prop_atoms.net_wm_action_maximize_horz;
1870         actions[num++] = prop_atoms.net_wm_action_maximize_vert;
1871     }
1872     if (self->functions & OB_CLIENT_FUNC_ABOVE)
1873         actions[num++] = prop_atoms.net_wm_action_above;
1874     if (self->functions & OB_CLIENT_FUNC_BELOW)
1875         actions[num++] = prop_atoms.net_wm_action_below;
1876     if (self->functions & OB_CLIENT_FUNC_UNDECORATE)
1877         actions[num++] = prop_atoms.ob_wm_action_undecorate;
1878
1879     PROP_SETA32(self->window, net_wm_allowed_actions, atom, actions, num);
1880
1881    /* make sure the window isn't breaking any rules now
1882
1883    don't check ICONIFY here.  just cuz a window can't iconify doesnt mean
1884    it can't be iconified with its parent
1885    */
1886
1887     if (!(self->functions & OB_CLIENT_FUNC_SHADE) && self->shaded) {
1888         if (self->frame) client_shade(self, FALSE);
1889         else self->shaded = FALSE;
1890     }
1891     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) && self->fullscreen) {
1892         if (self->frame) client_fullscreen(self, FALSE);
1893         else self->fullscreen = FALSE;
1894     }
1895     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && (self->max_horz ||
1896                                                          self->max_vert)) {
1897         if (self->frame) client_maximize(self, FALSE, 0);
1898         else self->max_vert = self->max_horz = FALSE;
1899     }
1900 }
1901
1902 void client_update_wmhints(ObClient *self)
1903 {
1904     XWMHints *hints;
1905
1906     /* assume a window takes input if it doesn't specify */
1907     self->can_focus = TRUE;
1908
1909     if ((hints = XGetWMHints(ob_display, self->window)) != NULL) {
1910         gboolean ur;
1911
1912         if (hints->flags & InputHint)
1913             self->can_focus = hints->input;
1914
1915         /* only do this when first managing the window *AND* when we aren't
1916            starting up! */
1917         if (ob_state() != OB_STATE_STARTING && self->frame == NULL)
1918             if (hints->flags & StateHint)
1919                 self->iconic = hints->initial_state == IconicState;
1920
1921         ur = self->urgent;
1922         self->urgent = (hints->flags & XUrgencyHint);
1923         if (self->urgent && !ur)
1924             client_hilite(self, TRUE);
1925         else if (!self->urgent && ur && self->demands_attention)
1926             client_hilite(self, FALSE);
1927
1928         if (!(hints->flags & WindowGroupHint))
1929             hints->window_group = None;
1930
1931         /* did the group state change? */
1932         if (hints->window_group !=
1933             (self->group ? self->group->leader : None))
1934         {
1935             ObGroup *oldgroup = self->group;
1936
1937             /* remove from the old group if there was one */
1938             if (self->group) {
1939                 group_remove(self->group, self);
1940                 self->group = NULL;
1941             }
1942
1943             /* add ourself to the group if we have one */
1944             if (hints->window_group != None) {
1945                 self->group = group_add(hints->window_group, self);
1946             }
1947
1948             /* Put ourselves into the new group's transient tree, and remove
1949                ourselves from the old group's */
1950             client_update_transient_tree(self, oldgroup, self->group,
1951                                          self->transient_for_group,
1952                                          self->transient_for_group,
1953                                          client_direct_parent(self),
1954                                          client_direct_parent(self));
1955
1956             /* Lastly, being in a group, or not, can change if the window is
1957                transient for anything.
1958
1959                The logic for this is:
1960                self->transient = TRUE always if the window wants to be
1961                transient for something, even if transient_for was NULL because
1962                it wasn't in a group before.
1963
1964                If parents was NULL and oldgroup was NULL we can assume
1965                that when we add the new group, it will become transient for
1966                something.
1967
1968                If transient_for_group is TRUE, then it must have already
1969                had a group. If it is getting a new group, the above call to
1970                client_update_transient_tree has already taken care of
1971                everything ! If it is losing all group status then it will
1972                no longer be transient for anything and that needs to be
1973                updated.
1974             */
1975             if (self->transient &&
1976                 ((self->parents == NULL && oldgroup == NULL) ||
1977                  (self->transient_for_group && !self->group)))
1978                 client_update_transient_for(self);
1979         }
1980
1981         /* the WM_HINTS can contain an icon */
1982         if (hints->flags & IconPixmapHint)
1983             client_update_icons(self);
1984
1985         XFree(hints);
1986     }
1987 }
1988
1989 void client_update_title(ObClient *self)
1990 {
1991     gchar *data = NULL;
1992     gchar *visible = NULL;
1993
1994     g_free(self->title);
1995     g_free(self->original_title);
1996
1997     /* try netwm */
1998     if (!PROP_GETS(self->window, net_wm_name, utf8, &data)) {
1999         /* try old x stuff */
2000         if (!(PROP_GETS(self->window, wm_name, locale, &data)
2001               || PROP_GETS(self->window, wm_name, utf8, &data))) {
2002             if (self->transient) {
2003     /*
2004     GNOME alert windows are not given titles:
2005     http://developer.gnome.org/projects/gup/hig/draft_hig_new/windows-alert.html
2006     */
2007                 data = g_strdup("");
2008             } else
2009                 data = g_strdup(_("Unnamed Window"));
2010         }
2011     }
2012     self->original_title = g_strdup(data);
2013
2014     if (self->client_machine) {
2015         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
2016         g_free(data);
2017     } else
2018         visible = data;
2019
2020     if (self->not_responding) {
2021         data = visible;
2022         if (self->kill_level > 0)
2023             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
2024         else
2025             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
2026         g_free(data);
2027     }
2028
2029     PROP_SETS(self->window, net_wm_visible_name, visible);
2030     self->title = visible;
2031
2032     if (self->frame)
2033         frame_adjust_title(self->frame);
2034
2035     /* update the icon title */
2036     data = NULL;
2037     g_free(self->icon_title);
2038
2039     /* try netwm */
2040     if (!PROP_GETS(self->window, net_wm_icon_name, utf8, &data))
2041         /* try old x stuff */
2042         if (!(PROP_GETS(self->window, wm_icon_name, locale, &data) ||
2043               PROP_GETS(self->window, wm_icon_name, utf8, &data)))
2044             data = g_strdup(self->title);
2045
2046     if (self->client_machine) {
2047         visible = g_strdup_printf("%s (%s)", data, self->client_machine);
2048         g_free(data);
2049     } else
2050         visible = data;
2051
2052     if (self->not_responding) {
2053         data = visible;
2054         if (self->kill_level > 0)
2055             visible = g_strdup_printf("%s - [%s]", data, _("Killing..."));
2056         else
2057             visible = g_strdup_printf("%s - [%s]", data, _("Not Responding"));
2058         g_free(data);
2059     }
2060
2061     PROP_SETS(self->window, net_wm_visible_icon_name, visible);
2062     self->icon_title = visible;
2063 }
2064
2065 void client_update_strut(ObClient *self)
2066 {
2067     guint num;
2068     guint32 *data;
2069     gboolean got = FALSE;
2070     StrutPartial strut;
2071
2072     if (PROP_GETA32(self->window, net_wm_strut_partial, cardinal,
2073                     &data, &num)) {
2074         if (num == 12) {
2075             got = TRUE;
2076             STRUT_PARTIAL_SET(strut,
2077                               data[0], data[2], data[1], data[3],
2078                               data[4], data[5], data[8], data[9],
2079                               data[6], data[7], data[10], data[11]);
2080         }
2081         g_free(data);
2082     }
2083
2084     if (!got &&
2085         PROP_GETA32(self->window, net_wm_strut, cardinal, &data, &num)) {
2086         if (num == 4) {
2087             Rect *a;
2088
2089             got = TRUE;
2090
2091             /* use the screen's width/height */
2092             a = screen_physical_area_all_monitors();
2093
2094             STRUT_PARTIAL_SET(strut,
2095                               data[0], data[2], data[1], data[3],
2096                               a->y, a->y + a->height - 1,
2097                               a->x, a->x + a->width - 1,
2098                               a->y, a->y + a->height - 1,
2099                               a->x, a->x + a->width - 1);
2100             g_free(a);
2101         }
2102         g_free(data);
2103     }
2104
2105     if (!got)
2106         STRUT_PARTIAL_SET(strut, 0, 0, 0, 0,
2107                           0, 0, 0, 0, 0, 0, 0, 0);
2108
2109     if (!STRUT_EQUAL(strut, self->strut)) {
2110         self->strut = strut;
2111
2112         /* updating here is pointless while we're being mapped cuz we're not in
2113            the client list yet */
2114         if (self->frame)
2115             screen_update_areas();
2116     }
2117 }
2118
2119 void client_update_icons(ObClient *self)
2120 {
2121     guint num;
2122     guint32 *data;
2123     guint w, h, i, j;
2124     guint num_seen;  /* number of icons present */
2125     RrImage *img;
2126
2127     img = NULL;
2128
2129     /* grab the server, because we might be setting the window's icon and
2130        we don't want them to set it in between and we overwrite their own
2131        icon */
2132     grab_server(TRUE);
2133
2134     if (PROP_GETA32(self->window, net_wm_icon, cardinal, &data, &num)) {
2135         /* figure out how many valid icons are in here */
2136         i = 0;
2137         num_seen = 0;
2138         while (i + 2 < num) { /* +2 is to make sure there is a w and h */
2139             w = data[i++];
2140             h = data[i++];
2141             /* watch for the data being too small for the specified size,
2142                or for zero sized icons. */
2143             if (i + w*h > num || w == 0 || h == 0) break;
2144
2145             /* convert it to the right bit order for ObRender */
2146             for (j = 0; j < w*h; ++j)
2147                 data[i+j] =
2148                     (((data[i+j] >> 24) & 0xff) << RrDefaultAlphaOffset) +
2149                     (((data[i+j] >> 16) & 0xff) << RrDefaultRedOffset)   +
2150                     (((data[i+j] >>  8) & 0xff) << RrDefaultGreenOffset) +
2151                     (((data[i+j] >>  0) & 0xff) << RrDefaultBlueOffset);
2152
2153             /* is it in the cache? */
2154             img = RrImageCacheFind(ob_rr_icons, &data[i], w, h);
2155             if (img) RrImageRef(img); /* own it */
2156
2157             i += w*h;
2158             ++num_seen;
2159
2160             /* don't bother looping anymore if we already found it in the cache
2161                since we'll just use that! */
2162             if (img) break;
2163         }
2164
2165         /* if it's not in the cache yet, then add it to the cache now.
2166            we have already converted it to the correct bit order above */
2167         if (!img && num_seen > 0) {
2168             img = RrImageNew(ob_rr_icons);
2169             i = 0;
2170             for (j = 0; j < num_seen; ++j) {
2171                 w = data[i++];
2172                 h = data[i++];
2173                 RrImageAddPicture(img, &data[i], w, h);
2174                 i += w*h;
2175             }
2176         }
2177
2178         g_free(data);
2179     }
2180
2181     /* if we didn't find an image from the NET_WM_ICON stuff, then try the
2182        legacy X hints */
2183     if (!img) {
2184         XWMHints *hints;
2185
2186         if ((hints = XGetWMHints(ob_display, self->window))) {
2187             if (hints->flags & IconPixmapHint) {
2188                 gboolean xicon;
2189                 xerror_set_ignore(TRUE);
2190                 xicon = RrPixmapToRGBA(ob_rr_inst,
2191                                        hints->icon_pixmap,
2192                                        (hints->flags & IconMaskHint ?
2193                                         hints->icon_mask : None),
2194                                        (gint*)&w, (gint*)&h, &data);
2195                 xerror_set_ignore(FALSE);
2196
2197
2198                 if (xicon) {
2199                     if (w > 0 && h > 0) {
2200                         /* is this icon in the cache yet? */
2201                         img = RrImageCacheFind(ob_rr_icons, data, w, h);
2202                         if (img) RrImageRef(img); /* own it */
2203
2204                         /* if not, then add it */
2205                         if (!img) {
2206                             img = RrImageNew(ob_rr_icons);
2207                             RrImageAddPicture(img, data, w, h);
2208                         }
2209                     }
2210
2211                     g_free(data);
2212                 }
2213             }
2214             XFree(hints);
2215         }
2216     }
2217
2218     /* set the client's icons to be whatever we found */
2219     RrImageUnref(self->icon_set);
2220     self->icon_set = img;
2221
2222     /* if the client has no icon at all, then we set a default icon onto it.
2223        but, if it has parents, then one of them will have an icon already
2224     */
2225     if (!self->icon_set && !self->parents) {
2226         RrPixel32 *icon = ob_rr_theme->def_win_icon;
2227         gulong *ldata; /* use a long here to satisfy OBT_PROP_SETA32 */
2228
2229         w = ob_rr_theme->def_win_icon_w;
2230         h = ob_rr_theme->def_win_icon_h;
2231         ldata = g_new(gulong, w*h+2);
2232         ldata[0] = w;
2233         ldata[1] = h;
2234         for (i = 0; i < w*h; ++i)
2235             ldata[i+2] = (((icon[i] >> RrDefaultAlphaOffset) & 0xff) << 24) +
2236                 (((icon[i] >> RrDefaultRedOffset) & 0xff) << 16) +
2237                 (((icon[i] >> RrDefaultGreenOffset) & 0xff) << 8) +
2238                 (((icon[i] >> RrDefaultBlueOffset) & 0xff) << 0);
2239         PROP_SETA32(self->window, net_wm_icon, cardinal, ldata, w*h+2);
2240         g_free(ldata);
2241     } else if (self->frame)
2242         /* don't draw the icon empty if we're just setting one now anyways,
2243            we'll get the property change any second */
2244         frame_adjust_icon(self->frame);
2245
2246     grab_server(FALSE);
2247 }
2248
2249 void client_update_icon_geometry(ObClient *self)
2250 {
2251     guint num;
2252     guint32 *data;
2253
2254     RECT_SET(self->icon_geometry, 0, 0, 0, 0);
2255
2256     if (PROP_GETA32(self->window, net_wm_icon_geometry, cardinal, &data, &num))
2257     {
2258         if (num == 4)
2259             /* don't let them set it with an area < 0 */
2260             RECT_SET(self->icon_geometry, data[0], data[1],
2261                      MAX(data[2],0), MAX(data[3],0));
2262         g_free(data);
2263     }
2264 }
2265
2266 static void client_get_session_ids(ObClient *self)
2267 {
2268     guint32 leader;
2269     gboolean got;
2270     gchar *s;
2271     gchar **ss;
2272
2273     if (!PROP_GET32(self->window, wm_client_leader, window, &leader))
2274         leader = None;
2275
2276     /* get the SM_CLIENT_ID */
2277     got = FALSE;
2278     if (leader)
2279         got = PROP_GETS(leader, sm_client_id, locale, &self->sm_client_id);
2280     if (!got)
2281         PROP_GETS(self->window, sm_client_id, locale, &self->sm_client_id);
2282
2283     /* get the WM_CLASS (name and class). make them "" if they are not
2284        provided */
2285     got = FALSE;
2286     if (leader)
2287         got = PROP_GETSS(leader, wm_class, locale, &ss);
2288     if (!got)
2289         got = PROP_GETSS(self->window, wm_class, locale, &ss);
2290
2291     if (got) {
2292         if (ss[0]) {
2293             self->name = g_strdup(ss[0]);
2294             if (ss[1])
2295                 self->class = g_strdup(ss[1]);
2296         }
2297         g_strfreev(ss);
2298     }
2299
2300     if (self->name == NULL) self->name = g_strdup("");
2301     if (self->class == NULL) self->class = g_strdup("");
2302
2303     /* get the WM_WINDOW_ROLE. make it "" if it is not provided */
2304     got = FALSE;
2305     if (leader)
2306         got = PROP_GETS(leader, wm_window_role, locale, &s);
2307     if (!got)
2308         got = PROP_GETS(self->window, wm_window_role, locale, &s);
2309
2310     if (got)
2311         self->role = s;
2312     else
2313         self->role = g_strdup("");
2314
2315     /* get the WM_COMMAND */
2316     got = FALSE;
2317
2318     if (leader)
2319         got = PROP_GETSS(leader, wm_command, locale, &ss);
2320     if (!got)
2321         got = PROP_GETSS(self->window, wm_command, locale, &ss);
2322
2323     if (got) {
2324         /* merge/mash them all together */
2325         gchar *merge = NULL;
2326         gint i;
2327
2328         for (i = 0; ss[i]; ++i) {
2329             gchar *tmp = merge;
2330             if (merge)
2331                 merge = g_strconcat(merge, ss[i], NULL);
2332             else
2333                 merge = g_strconcat(ss[i], NULL);
2334             g_free(tmp);
2335         }
2336         g_strfreev(ss);
2337
2338         self->wm_command = merge;
2339     }
2340
2341     /* get the WM_CLIENT_MACHINE */
2342     got = FALSE;
2343     if (leader)
2344         got = PROP_GETS(leader, wm_client_machine, locale, &s);
2345     if (!got)
2346         got = PROP_GETS(self->window, wm_client_machine, locale, &s);
2347
2348     if (got) {
2349         gchar localhost[128];
2350         guint32 pid;
2351
2352         gethostname(localhost, 127);
2353         localhost[127] = '\0';
2354         if (strcmp(localhost, s) != 0)
2355             self->client_machine = s;
2356         else
2357             g_free(s);
2358
2359         /* see if it has the PID set too (the PID requires that the
2360            WM_CLIENT_MACHINE be set) */
2361         if (PROP_GET32(self->window, net_wm_pid, cardinal, &pid))
2362             self->pid = pid;
2363     }
2364 }
2365
2366 static void client_change_wm_state(ObClient *self)
2367 {
2368     gulong state[2];
2369     glong old;
2370
2371     old = self->wmstate;
2372
2373     if (self->shaded || self->iconic ||
2374         (self->desktop != DESKTOP_ALL && self->desktop != screen_desktop))
2375     {
2376         self->wmstate = IconicState;
2377     } else
2378         self->wmstate = NormalState;
2379
2380     if (old != self->wmstate) {
2381         PROP_MSG(self->window, kde_wm_change_state,
2382                  self->wmstate, 1, 0, 0);
2383
2384         state[0] = self->wmstate;
2385         state[1] = None;
2386         PROP_SETA32(self->window, wm_state, wm_state, state, 2);
2387     }
2388 }
2389
2390 static void client_change_state(ObClient *self)
2391 {
2392     gulong netstate[12];
2393     guint num;
2394
2395     num = 0;
2396     if (self->modal)
2397         netstate[num++] = prop_atoms.net_wm_state_modal;
2398     if (self->shaded)
2399         netstate[num++] = prop_atoms.net_wm_state_shaded;
2400     if (self->iconic)
2401         netstate[num++] = prop_atoms.net_wm_state_hidden;
2402     if (self->skip_taskbar)
2403         netstate[num++] = prop_atoms.net_wm_state_skip_taskbar;
2404     if (self->skip_pager)
2405         netstate[num++] = prop_atoms.net_wm_state_skip_pager;
2406     if (self->fullscreen)
2407         netstate[num++] = prop_atoms.net_wm_state_fullscreen;
2408     if (self->max_vert)
2409         netstate[num++] = prop_atoms.net_wm_state_maximized_vert;
2410     if (self->max_horz)
2411         netstate[num++] = prop_atoms.net_wm_state_maximized_horz;
2412     if (self->above)
2413         netstate[num++] = prop_atoms.net_wm_state_above;
2414     if (self->below)
2415         netstate[num++] = prop_atoms.net_wm_state_below;
2416     if (self->demands_attention)
2417         netstate[num++] = prop_atoms.net_wm_state_demands_attention;
2418     if (self->undecorated)
2419         netstate[num++] = prop_atoms.ob_wm_state_undecorated;
2420     PROP_SETA32(self->window, net_wm_state, atom, netstate, num);
2421
2422     if (self->frame)
2423         frame_adjust_state(self->frame);
2424 }
2425
2426 ObClient *client_search_focus_tree(ObClient *self)
2427 {
2428     GSList *it;
2429     ObClient *ret;
2430
2431     for (it = self->transients; it; it = g_slist_next(it)) {
2432         if (client_focused(it->data)) return it->data;
2433         if ((ret = client_search_focus_tree(it->data))) return ret;
2434     }
2435     return NULL;
2436 }
2437
2438 ObClient *client_search_focus_tree_full(ObClient *self)
2439 {
2440     if (self->parents) {
2441         GSList *it;
2442
2443         for (it = self->parents; it; it = g_slist_next(it)) {
2444             ObClient *c = it->data;
2445             if ((c = client_search_focus_tree_full(it->data))) return c;
2446         }
2447
2448         return NULL;
2449     }
2450     else {
2451         /* this function checks the whole tree, the client_search_focus_tree
2452            does not, so we need to check this window */
2453         if (client_focused(self))
2454             return self;
2455         return client_search_focus_tree(self);
2456     }
2457 }
2458
2459 ObClient *client_search_focus_group_full(ObClient *self)
2460 {
2461     GSList *it;
2462
2463     if (self->group) {
2464         for (it = self->group->members; it; it = g_slist_next(it)) {
2465             ObClient *c = it->data;
2466
2467             if (client_focused(c)) return c;
2468             if ((c = client_search_focus_tree(it->data))) return c;
2469         }
2470     } else
2471         if (client_focused(self)) return self;
2472     return NULL;
2473 }
2474
2475 gboolean client_has_parent(ObClient *self)
2476 {
2477     return self->parents != NULL;
2478 }
2479
2480 static ObStackingLayer calc_layer(ObClient *self)
2481 {
2482     ObStackingLayer l;
2483     Rect *monitor;
2484
2485     monitor = screen_physical_area_monitor(client_monitor(self));
2486
2487     if (self->type == OB_CLIENT_TYPE_DESKTOP)
2488         l = OB_STACKING_LAYER_DESKTOP;
2489     else if (self->type == OB_CLIENT_TYPE_DOCK) {
2490         if (self->below) l = OB_STACKING_LAYER_NORMAL;
2491         else l = OB_STACKING_LAYER_ABOVE;
2492     }
2493     else if ((self->fullscreen ||
2494               /* No decorations and fills the monitor = oldskool fullscreen.
2495                  But not for maximized windows.
2496               */
2497               (self->decorations == 0 &&
2498                !(self->max_horz && self->max_vert) &&
2499                RECT_EQUAL(self->area, *monitor))) &&
2500              /* you are fullscreen while you or your children are focused.. */
2501              (client_focused(self) || client_search_focus_tree(self) ||
2502               /* you can be fullscreen if you're on another desktop */
2503               (self->desktop != screen_desktop &&
2504                self->desktop != DESKTOP_ALL) ||
2505               /* and you can also be fullscreen if the focused client is on
2506                  another monitor, or nothing else is focused */
2507               (!focus_client ||
2508                client_monitor(focus_client) != client_monitor(self))))
2509         l = OB_STACKING_LAYER_FULLSCREEN;
2510     else if (self->above) l = OB_STACKING_LAYER_ABOVE;
2511     else if (self->below) l = OB_STACKING_LAYER_BELOW;
2512     else l = OB_STACKING_LAYER_NORMAL;
2513
2514     g_free(monitor);
2515
2516     return l;
2517 }
2518
2519 static void client_calc_layer_recursive(ObClient *self, ObClient *orig,
2520                                         ObStackingLayer min)
2521 {
2522     ObStackingLayer old, own;
2523     GSList *it;
2524
2525     old = self->layer;
2526     own = calc_layer(self);
2527     self->layer = MAX(own, min);
2528
2529     if (self->layer != old) {
2530         stacking_remove(CLIENT_AS_WINDOW(self));
2531         stacking_add_nonintrusive(CLIENT_AS_WINDOW(self));
2532     }
2533
2534     /* we've been restacked */
2535     self->visited = TRUE;
2536
2537     for (it = self->transients; it; it = g_slist_next(it))
2538         client_calc_layer_recursive(it->data, orig,
2539                                     self->layer);
2540 }
2541
2542 static void client_calc_layer_internal(ObClient *self)
2543 {
2544     GSList *sit;
2545
2546     /* transients take on the layer of their parents */
2547     sit = client_search_all_top_parents(self);
2548
2549     for (; sit; sit = g_slist_next(sit))
2550         client_calc_layer_recursive(sit->data, self, 0);
2551 }
2552
2553 void client_calc_layer(ObClient *self)
2554 {
2555     GList *it;
2556
2557     /* skip over stuff above fullscreen layer */
2558     for (it = stacking_list; it; it = g_list_next(it))
2559         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2560
2561     /* find the windows in the fullscreen layer, and mark them not-visited */
2562     for (; it; it = g_list_next(it)) {
2563         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2564         else if (WINDOW_IS_CLIENT(it->data))
2565             WINDOW_AS_CLIENT(it->data)->visited = FALSE;
2566     }
2567
2568     client_calc_layer_internal(self);
2569
2570     /* skip over stuff above fullscreen layer */
2571     for (it = stacking_list; it; it = g_list_next(it))
2572         if (window_layer(it->data) <= OB_STACKING_LAYER_FULLSCREEN) break;
2573
2574     /* now recalc any windows in the fullscreen layer which have not
2575        had their layer recalced already */
2576     for (; it; it = g_list_next(it)) {
2577         if (window_layer(it->data) < OB_STACKING_LAYER_FULLSCREEN) break;
2578         else if (WINDOW_IS_CLIENT(it->data) &&
2579                  !WINDOW_AS_CLIENT(it->data)->visited)
2580             client_calc_layer_internal(it->data);
2581     }
2582 }
2583
2584 gboolean client_should_show(ObClient *self)
2585 {
2586     if (self->iconic)
2587         return FALSE;
2588     if (client_normal(self) && screen_showing_desktop)
2589         return FALSE;
2590     if (self->desktop == screen_desktop || self->desktop == DESKTOP_ALL)
2591         return TRUE;
2592
2593     return FALSE;
2594 }
2595
2596 gboolean client_show(ObClient *self)
2597 {
2598     gboolean show = FALSE;
2599
2600     if (client_should_show(self)) {
2601         /* replay pending pointer event before showing the window, in case it
2602            should be going to something under the window */
2603         mouse_replay_pointer();
2604
2605         frame_show(self->frame);
2606         show = TRUE;
2607
2608         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2609            it needs to be in IconicState. This includes when it is on another
2610            desktop!
2611         */
2612         client_change_wm_state(self);
2613     }
2614     return show;
2615 }
2616
2617 gboolean client_hide(ObClient *self)
2618 {
2619     gboolean hide = FALSE;
2620
2621     if (!client_should_show(self)) {
2622         if (self == focus_client) {
2623             event_cancel_all_key_grabs();
2624         }
2625
2626         /* We don't need to ignore enter events here.
2627            The window can hide/iconify in 3 different ways:
2628            1 - through an x message. in this case we ignore all enter events
2629                caused by responding to the x message (unless underMouse)
2630            2 - by a keyboard action. in this case we ignore all enter events
2631                caused by the action
2632            3 - by a mouse action. in this case they are doing stuff with the
2633                mouse and focus _should_ move.
2634
2635            Also in action_end, we simulate an enter event that can't be ignored
2636            so trying to ignore them is futile in case 3 anyways
2637         */
2638
2639         /* replay pending pointer event before hiding the window, in case it
2640            should be going to the window */
2641         mouse_replay_pointer();
2642
2643         frame_hide(self->frame);
2644         hide = TRUE;
2645
2646         /* According to the ICCCM (sec 4.1.3.1) when a window is not visible,
2647            it needs to be in IconicState. This includes when it is on another
2648            desktop!
2649         */
2650         client_change_wm_state(self);
2651     }
2652     return hide;
2653 }
2654
2655 void client_showhide(ObClient *self)
2656 {
2657     if (!client_show(self))
2658         client_hide(self);
2659 }
2660
2661 gboolean client_normal(ObClient *self) {
2662     return ! (self->type == OB_CLIENT_TYPE_DESKTOP ||
2663               self->type == OB_CLIENT_TYPE_DOCK ||
2664               self->type == OB_CLIENT_TYPE_SPLASH);
2665 }
2666
2667 gboolean client_helper(ObClient *self)
2668 {
2669     return (self->type == OB_CLIENT_TYPE_UTILITY ||
2670             self->type == OB_CLIENT_TYPE_MENU ||
2671             self->type == OB_CLIENT_TYPE_TOOLBAR);
2672 }
2673
2674 gboolean client_mouse_focusable(ObClient *self)
2675 {
2676     return !(self->type == OB_CLIENT_TYPE_MENU ||
2677              self->type == OB_CLIENT_TYPE_TOOLBAR ||
2678              self->type == OB_CLIENT_TYPE_SPLASH ||
2679              self->type == OB_CLIENT_TYPE_DOCK);
2680 }
2681
2682 gboolean client_enter_focusable(ObClient *self)
2683 {
2684     /* you can focus desktops but it shouldn't on enter */
2685     return (client_mouse_focusable(self) &&
2686             self->type != OB_CLIENT_TYPE_DESKTOP);
2687 }
2688
2689
2690 static void client_apply_startup_state(ObClient *self,
2691                                        gint x, gint y, gint w, gint h)
2692 {
2693     /* save the states that we are going to apply */
2694     gboolean iconic = self->iconic;
2695     gboolean fullscreen = self->fullscreen;
2696     gboolean undecorated = self->undecorated;
2697     gboolean shaded = self->shaded;
2698     gboolean demands_attention = self->demands_attention;
2699     gboolean max_horz = self->max_horz;
2700     gboolean max_vert = self->max_vert;
2701     Rect oldarea;
2702     gint l;
2703
2704     /* turn them all off in the client, so they won't affect the window
2705        being placed */
2706     self->iconic = self->fullscreen = self->undecorated = self->shaded =
2707         self->demands_attention = self->max_horz = self->max_vert = FALSE;
2708
2709     /* move the client to its placed position, or it it's already there,
2710        generate a ConfigureNotify telling the client where it is.
2711
2712        do this after adjusting the frame. otherwise it gets all weird and
2713        clients don't work right
2714
2715        do this before applying the states so they have the correct
2716        pre-max/pre-fullscreen values
2717     */
2718     client_try_configure(self, &x, &y, &w, &h, &l, &l, FALSE);
2719     ob_debug("placed window 0x%x at %d, %d with size %d x %d\n",
2720              self->window, x, y, w, h);
2721     /* save the area, and make it where it should be for the premax stuff */
2722     oldarea = self->area;
2723     RECT_SET(self->area, x, y, w, h);
2724
2725     /* apply the states. these are in a carefully crafted order.. */
2726
2727     if (iconic)
2728         client_iconify(self, TRUE, FALSE, TRUE);
2729     if (fullscreen)
2730         client_fullscreen(self, TRUE);
2731     if (undecorated)
2732         client_set_undecorated(self, TRUE);
2733     if (shaded)
2734         client_shade(self, TRUE);
2735     if (demands_attention)
2736         client_hilite(self, TRUE);
2737
2738     if (max_vert && max_horz)
2739         client_maximize(self, TRUE, 0);
2740     else if (max_vert)
2741         client_maximize(self, TRUE, 2);
2742     else if (max_horz)
2743         client_maximize(self, TRUE, 1);
2744
2745     /* if the window hasn't been configured yet, then do so now, in fact the
2746        x,y,w,h may _not_ be the same as the area rect, which can end up
2747        meaning that the client isn't properly moved/resized by the fullscreen
2748        function
2749        pho can cause this because it maps at size of the screen but not 0,0
2750        so openbox moves it on screen to 0,0 (thus x,y=0,0 and area.x,y don't).
2751        then fullscreen'ing makes it go to 0,0 which it thinks it already is at
2752        cuz thats where the pre-fullscreen will be. however the actual area is
2753        not, so this needs to be called even if we have fullscreened/maxed
2754     */
2755     self->area = oldarea;
2756     client_configure(self, x, y, w, h, FALSE, TRUE, FALSE);
2757
2758     /* set the desktop hint, to make sure that it always exists */
2759     PROP_SET32(self->window, net_wm_desktop, cardinal, self->desktop);
2760
2761     /* nothing to do for the other states:
2762        skip_taskbar
2763        skip_pager
2764        modal
2765        above
2766        below
2767     */
2768 }
2769
2770 void client_gravity_resize_w(ObClient *self, gint *x, gint oldw, gint neww)
2771 {
2772     /* these should be the current values. this is for when you're not moving,
2773        just resizing */
2774     g_assert(*x == self->area.x);
2775     g_assert(oldw == self->area.width);
2776
2777     /* horizontal */
2778     switch (self->gravity) {
2779     default:
2780     case NorthWestGravity:
2781     case WestGravity:
2782     case SouthWestGravity:
2783     case StaticGravity:
2784     case ForgetGravity:
2785         break;
2786     case NorthGravity:
2787     case CenterGravity:
2788     case SouthGravity:
2789         *x -= (neww - oldw) / 2;
2790         break;
2791     case NorthEastGravity:
2792     case EastGravity:
2793     case SouthEastGravity:
2794         *x -= neww - oldw;
2795         break;
2796     }
2797 }
2798
2799 void client_gravity_resize_h(ObClient *self, gint *y, gint oldh, gint newh)
2800 {
2801     /* these should be the current values. this is for when you're not moving,
2802        just resizing */
2803     g_assert(*y == self->area.y);
2804     g_assert(oldh == self->area.height);
2805
2806     /* vertical */
2807     switch (self->gravity) {
2808     default:
2809     case NorthWestGravity:
2810     case NorthGravity:
2811     case NorthEastGravity:
2812     case StaticGravity:
2813     case ForgetGravity:
2814         break;
2815     case WestGravity:
2816     case CenterGravity:
2817     case EastGravity:
2818         *y -= (newh - oldh) / 2;
2819         break;
2820     case SouthWestGravity:
2821     case SouthGravity:
2822     case SouthEastGravity:
2823         *y -= newh - oldh;
2824         break;
2825     }
2826 }
2827
2828 void client_try_configure(ObClient *self, gint *x, gint *y, gint *w, gint *h,
2829                           gint *logicalw, gint *logicalh,
2830                           gboolean user)
2831 {
2832     Rect desired = {*x, *y, *w, *h};
2833     frame_rect_to_frame(self->frame, &desired);
2834
2835     /* make the frame recalculate its dimensions n shit without changing
2836        anything visible for real, this way the constraints below can work with
2837        the updated frame dimensions. */
2838     frame_adjust_area(self->frame, FALSE, TRUE, TRUE);
2839
2840     /* gets the frame's position */
2841     frame_client_gravity(self->frame, x, y);
2842
2843     /* these positions are frame positions, not client positions */
2844
2845     /* set the size and position if fullscreen */
2846     if (self->fullscreen) {
2847         Rect *a;
2848         guint i;
2849
2850         i = screen_find_monitor(&desired);
2851         a = screen_physical_area_monitor(i);
2852
2853         *x = a->x;
2854         *y = a->y;
2855         *w = a->width;
2856         *h = a->height;
2857
2858         user = FALSE; /* ignore if the client can't be moved/resized when it
2859                          is fullscreening */
2860
2861         g_free(a);
2862     } else if (self->max_horz || self->max_vert) {
2863         Rect *a;
2864         guint i;
2865
2866         /* use all possible struts when maximizing to the full screen */
2867         i = screen_find_monitor(&desired);
2868         a = screen_area(self->desktop, i,
2869                         (self->max_horz && self->max_vert ? NULL : &desired));
2870
2871         /* set the size and position if maximized */
2872         if (self->max_horz) {
2873             *x = a->x;
2874             *w = a->width - self->frame->size.left - self->frame->size.right;
2875         }
2876         if (self->max_vert) {
2877             *y = a->y;
2878             *h = a->height - self->frame->size.top - self->frame->size.bottom;
2879         }
2880
2881         user = FALSE; /* ignore if the client can't be moved/resized when it
2882                          is maximizing */
2883
2884         g_free(a);
2885     }
2886
2887     /* gets the client's position */
2888     frame_frame_gravity(self->frame, x, y);
2889
2890     /* work within the preferred sizes given by the window, these may have
2891        changed rather than it's requested width and height, so always run
2892        through this code */
2893     {
2894         gint basew, baseh, minw, minh;
2895         gint incw, inch;
2896         gfloat minratio, maxratio;
2897
2898         incw = self->fullscreen || self->max_horz ? 1 : self->size_inc.width;
2899         inch = self->fullscreen || self->max_vert ? 1 : self->size_inc.height;
2900         minratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2901             0 : self->min_ratio;
2902         maxratio = self->fullscreen || (self->max_horz && self->max_vert) ?
2903             0 : self->max_ratio;
2904
2905         /* base size is substituted with min size if not specified */
2906         if (self->base_size.width >= 0 || self->base_size.height >= 0) {
2907             basew = self->base_size.width;
2908             baseh = self->base_size.height;
2909         } else {
2910             basew = self->min_size.width;
2911             baseh = self->min_size.height;
2912         }
2913         /* min size is substituted with base size if not specified */
2914         if (self->min_size.width || self->min_size.height) {
2915             minw = self->min_size.width;
2916             minh = self->min_size.height;
2917         } else {
2918             minw = self->base_size.width;
2919             minh = self->base_size.height;
2920         }
2921
2922         /* This comment is no longer true */
2923         /* if this is a user-requested resize, then check against min/max
2924            sizes */
2925
2926         /* smaller than min size or bigger than max size? */
2927         if (*w > self->max_size.width) *w = self->max_size.width;
2928         if (*w < minw) *w = minw;
2929         if (*h > self->max_size.height) *h = self->max_size.height;
2930         if (*h < minh) *h = minh;
2931
2932         *w -= basew;
2933         *h -= baseh;
2934
2935         /* keep to the increments */
2936         *w /= incw;
2937         *h /= inch;
2938
2939         /* you cannot resize to nothing */
2940         if (basew + *w < 1) *w = 1 - basew;
2941         if (baseh + *h < 1) *h = 1 - baseh;
2942
2943         /* save the logical size */
2944         *logicalw = incw > 1 ? *w : *w + basew;
2945         *logicalh = inch > 1 ? *h : *h + baseh;
2946
2947         *w *= incw;
2948         *h *= inch;
2949
2950         *w += basew;
2951         *h += baseh;
2952
2953         /* adjust the height to match the width for the aspect ratios.
2954            for this, min size is not substituted for base size ever. */
2955         *w -= self->base_size.width;
2956         *h -= self->base_size.height;
2957
2958         if (minratio)
2959             if (*h * minratio > *w) {
2960                 *h = (gint)(*w / minratio);
2961
2962                 /* you cannot resize to nothing */
2963                 if (*h < 1) {
2964                     *h = 1;
2965                     *w = (gint)(*h * minratio);
2966                 }
2967             }
2968         if (maxratio)
2969             if (*h * maxratio < *w) {
2970                 *h = (gint)(*w / maxratio);
2971
2972                 /* you cannot resize to nothing */
2973                 if (*h < 1) {
2974                     *h = 1;
2975                     *w = (gint)(*h * minratio);
2976                 }
2977             }
2978
2979         *w += self->base_size.width;
2980         *h += self->base_size.height;
2981     }
2982
2983     /* these override the above states! if you cant move you can't move! */
2984     if (user) {
2985         if (!(self->functions & OB_CLIENT_FUNC_MOVE)) {
2986             *x = self->area.x;
2987             *y = self->area.y;
2988         }
2989         if (!(self->functions & OB_CLIENT_FUNC_RESIZE)) {
2990             *w = self->area.width;
2991             *h = self->area.height;
2992         }
2993     }
2994
2995     g_assert(*w > 0);
2996     g_assert(*h > 0);
2997 }
2998
2999
3000 void client_configure(ObClient *self, gint x, gint y, gint w, gint h,
3001                       gboolean user, gboolean final, gboolean force_reply)
3002 {
3003     Rect oldframe;
3004     gint oldw, oldh;
3005     gboolean send_resize_client;
3006     gboolean moved = FALSE, resized = FALSE, rootmoved = FALSE;
3007     gboolean fmoved, fresized;
3008     guint fdecor = self->frame->decorations;
3009     gboolean fhorz = self->frame->max_horz;
3010     gboolean fvert = self->frame->max_vert;
3011     gint logicalw, logicalh;
3012
3013     /* find the new x, y, width, and height (and logical size) */
3014     client_try_configure(self, &x, &y, &w, &h, &logicalw, &logicalh, user);
3015
3016     /* set the logical size if things changed */
3017     if (!(w == self->area.width && h == self->area.height))
3018         SIZE_SET(self->logical_size, logicalw, logicalh);
3019
3020     /* figure out if we moved or resized or what */
3021     moved = (x != self->area.x || y != self->area.y);
3022     resized = (w != self->area.width || h != self->area.height);
3023
3024     oldw = self->area.width;
3025     oldh = self->area.height;
3026     oldframe = self->frame->area;
3027     RECT_SET(self->area, x, y, w, h);
3028
3029     /* for app-requested resizes, always resize if 'resized' is true.
3030        for user-requested ones, only resize if final is true, or when
3031        resizing in redraw mode */
3032     send_resize_client = ((!user && resized) ||
3033                           (user && (final ||
3034                                     (resized && config_resize_redraw))));
3035
3036     /* if the client is enlarging, then resize the client before the frame */
3037     if (send_resize_client && (w > oldw || h > oldh)) {
3038         XMoveResizeWindow(ob_display, self->window,
3039                           self->frame->size.left, self->frame->size.top,
3040                           MAX(w, oldw), MAX(h, oldh));
3041         frame_adjust_client_area(self->frame);
3042     }
3043
3044     /* find the frame's dimensions and move/resize it */
3045     fmoved = moved;
3046     fresized = resized;
3047
3048     /* if decorations changed, then readjust everything for the frame */
3049     if (self->decorations != fdecor ||
3050         self->max_horz != fhorz || self->max_vert != fvert)
3051     {
3052         fmoved = fresized = TRUE;
3053     }
3054
3055     /* adjust the frame */
3056     if (fmoved || fresized) {
3057         gulong ignore_start;
3058         if (!user)
3059             ignore_start = event_start_ignore_all_enters();
3060
3061         /* replay pending pointer event before move the window, in case it
3062            would change what window gets the event */
3063         mouse_replay_pointer();
3064
3065         frame_adjust_area(self->frame, fmoved, fresized, FALSE);
3066
3067         if (!user)
3068             event_end_ignore_all_enters(ignore_start);
3069     }
3070
3071     if (!user || final) {
3072         gint oldrx = self->root_pos.x;
3073         gint oldry = self->root_pos.y;
3074         /* we have reset the client to 0 border width, so don't include
3075            it in these coords */
3076         POINT_SET(self->root_pos,
3077                   self->frame->area.x + self->frame->size.left -
3078                   self->border_width,
3079                   self->frame->area.y + self->frame->size.top -
3080                   self->border_width);
3081         if (self->root_pos.x != oldrx || self->root_pos.y != oldry)
3082             rootmoved = TRUE;
3083     }
3084
3085     /* This is kinda tricky and should not be changed.. let me explain!
3086
3087        When user = FALSE, then the request is coming from the application
3088        itself, and we are more strict about when to send a synthetic
3089        ConfigureNotify.  We strictly follow the rules of the ICCCM sec 4.1.5
3090        in this case (if force_reply is true)
3091
3092        When user = TRUE, then the request is coming from "us", like when we
3093        maximize a window or something.  In this case we are more lenient.  We
3094        used to follow the same rules as above, but _Java_ Swing can't handle
3095        this. So just to appease Swing, when user = TRUE, we always send
3096        a synthetic ConfigureNotify to give the window its root coordinates.
3097     */
3098     if ((!user && !resized && (rootmoved || force_reply)) ||
3099         (user && final && rootmoved))
3100     {
3101         XEvent event;
3102
3103         event.type = ConfigureNotify;
3104         event.xconfigure.display = ob_display;
3105         event.xconfigure.event = self->window;
3106         event.xconfigure.window = self->window;
3107
3108         ob_debug("Sending ConfigureNotify to %s for %d,%d %dx%d\n",
3109                  self->title, self->root_pos.x, self->root_pos.y, w, h);
3110
3111         /* root window real coords */
3112         event.xconfigure.x = self->root_pos.x;
3113         event.xconfigure.y = self->root_pos.y;
3114         event.xconfigure.width = w;
3115         event.xconfigure.height = h;
3116         event.xconfigure.border_width = self->border_width;
3117         event.xconfigure.above = None;
3118         event.xconfigure.override_redirect = FALSE;
3119         XSendEvent(event.xconfigure.display, event.xconfigure.window,
3120                    FALSE, StructureNotifyMask, &event);
3121     }
3122
3123     /* if the client is shrinking, then resize the frame before the client.
3124
3125        both of these resize sections may run, because the top one only resizes
3126        in the direction that is growing
3127      */
3128     if (send_resize_client && (w <= oldw || h <= oldh)) {
3129         frame_adjust_client_area(self->frame);
3130         XMoveResizeWindow(ob_display, self->window,
3131                           self->frame->size.left, self->frame->size.top, w, h);
3132     }
3133
3134     XFlush(ob_display);
3135
3136     /* if it moved between monitors, then this can affect the stacking
3137        layer of this window or others - for fullscreen windows */
3138     if (screen_find_monitor(&self->frame->area) !=
3139         screen_find_monitor(&oldframe))
3140     {
3141         client_calc_layer(self);
3142     }
3143 }
3144
3145 void client_fullscreen(ObClient *self, gboolean fs)
3146 {
3147     gint x, y, w, h;
3148
3149     if (!(self->functions & OB_CLIENT_FUNC_FULLSCREEN) || /* can't */
3150         self->fullscreen == fs) return;                   /* already done */
3151
3152     self->fullscreen = fs;
3153     client_change_state(self); /* change the state hints on the client */
3154
3155     if (fs) {
3156         self->pre_fullscreen_area = self->area;
3157         /* if the window is maximized, its area isn't all that meaningful.
3158            save its premax area instead. */
3159         if (self->max_horz) {
3160             self->pre_fullscreen_area.x = self->pre_max_area.x;
3161             self->pre_fullscreen_area.width = self->pre_max_area.width;
3162         }
3163         if (self->max_vert) {
3164             self->pre_fullscreen_area.y = self->pre_max_area.y;
3165             self->pre_fullscreen_area.height = self->pre_max_area.height;
3166         }
3167
3168         /* these will help configure_full figure out where to fullscreen
3169            the window */
3170         x = self->area.x;
3171         y = self->area.y;
3172         w = self->area.width;
3173         h = self->area.height;
3174     } else {
3175         g_assert(self->pre_fullscreen_area.width > 0 &&
3176                  self->pre_fullscreen_area.height > 0);
3177
3178         x = self->pre_fullscreen_area.x;
3179         y = self->pre_fullscreen_area.y;
3180         w = self->pre_fullscreen_area.width;
3181         h = self->pre_fullscreen_area.height;
3182         RECT_SET(self->pre_fullscreen_area, 0, 0, 0, 0);
3183     }
3184
3185     ob_debug("Window %s going fullscreen (%d)\n",
3186              self->title, self->fullscreen);
3187
3188     client_setup_decor_and_functions(self, FALSE);
3189     client_move_resize(self, x, y, w, h);
3190
3191     /* and adjust our layer/stacking. do this after resizing the window,
3192        and applying decorations, because windows which fill the screen are
3193        considered "fullscreen" and it affects their layer */
3194     client_calc_layer(self);
3195
3196     if (fs) {
3197         /* try focus us when we go into fullscreen mode */
3198         client_focus(self);
3199     }
3200 }
3201
3202 static void client_iconify_recursive(ObClient *self,
3203                                      gboolean iconic, gboolean curdesk,
3204                                      gboolean hide_animation)
3205 {
3206     GSList *it;
3207     gboolean changed = FALSE;
3208
3209     if (self->iconic != iconic) {
3210         ob_debug("%sconifying window: 0x%lx\n", (iconic ? "I" : "Uni"),
3211                  self->window);
3212
3213         if (iconic) {
3214             /* don't let non-normal windows iconify along with their parents
3215                or whatever */
3216             if (client_normal(self)) {
3217                 self->iconic = iconic;
3218
3219                 /* update the focus lists.. iconic windows go to the bottom of
3220                    the list */
3221                 focus_order_to_bottom(self);
3222
3223                 changed = TRUE;
3224             }
3225         } else {
3226             self->iconic = iconic;
3227
3228             if (curdesk && self->desktop != screen_desktop &&
3229                 self->desktop != DESKTOP_ALL)
3230                 client_set_desktop(self, screen_desktop, FALSE, FALSE);
3231
3232             /* this puts it after the current focused window */
3233             focus_order_remove(self);
3234             focus_order_add_new(self);
3235
3236             changed = TRUE;
3237         }
3238     }
3239
3240     if (changed) {
3241         client_change_state(self);
3242         if (config_animate_iconify && !hide_animation)
3243             frame_begin_iconify_animation(self->frame, iconic);
3244         /* do this after starting the animation so it doesn't flash */
3245         client_showhide(self);
3246     }
3247
3248     /* iconify all direct transients, and deiconify all transients
3249        (non-direct too) */
3250     for (it = self->transients; it; it = g_slist_next(it))
3251         if (it->data != self)
3252             if (client_is_direct_child(self, it->data) || !iconic)
3253                 client_iconify_recursive(it->data, iconic, curdesk,
3254                                          hide_animation);
3255 }
3256
3257 void client_iconify(ObClient *self, gboolean iconic, gboolean curdesk,
3258                     gboolean hide_animation)
3259 {
3260     if (self->functions & OB_CLIENT_FUNC_ICONIFY || !iconic) {
3261         /* move up the transient chain as far as possible first */
3262         self = client_search_top_direct_parent(self);
3263         client_iconify_recursive(self, iconic, curdesk, hide_animation);
3264     }
3265 }
3266
3267 void client_maximize(ObClient *self, gboolean max, gint dir)
3268 {
3269     gint x, y, w, h;
3270
3271     g_assert(dir == 0 || dir == 1 || dir == 2);
3272     if (!(self->functions & OB_CLIENT_FUNC_MAXIMIZE) && max) return;/* can't */
3273
3274     /* check if already done */
3275     if (max) {
3276         if (dir == 0 && self->max_horz && self->max_vert) return;
3277         if (dir == 1 && self->max_horz) return;
3278         if (dir == 2 && self->max_vert) return;
3279     } else {
3280         if (dir == 0 && !self->max_horz && !self->max_vert) return;
3281         if (dir == 1 && !self->max_horz) return;
3282         if (dir == 2 && !self->max_vert) return;
3283     }
3284
3285     /* these will help configure_full figure out which screen to fill with
3286        the window */
3287     x = self->area.x;
3288     y = self->area.y;
3289     w = self->area.width;
3290     h = self->area.height;
3291
3292     if (max) {
3293         if ((dir == 0 || dir == 1) && !self->max_horz) { /* horz */
3294             RECT_SET(self->pre_max_area,
3295                      self->area.x, self->pre_max_area.y,
3296                      self->area.width, self->pre_max_area.height);
3297         }
3298         if ((dir == 0 || dir == 2) && !self->max_vert) { /* vert */
3299             RECT_SET(self->pre_max_area,
3300                      self->pre_max_area.x, self->area.y,
3301                      self->pre_max_area.width, self->area.height);
3302         }
3303     } else {
3304         if ((dir == 0 || dir == 1) && self->max_horz) { /* horz */
3305             g_assert(self->pre_max_area.width > 0);
3306
3307             x = self->pre_max_area.x;
3308             w = self->pre_max_area.width;
3309
3310             RECT_SET(self->pre_max_area, 0, self->pre_max_area.y,
3311                      0, self->pre_max_area.height);
3312         }
3313         if ((dir == 0 || dir == 2) && self->max_vert) { /* vert */
3314             g_assert(self->pre_max_area.height > 0);
3315
3316             y = self->pre_max_area.y;
3317             h = self->pre_max_area.height;
3318
3319             RECT_SET(self->pre_max_area, self->pre_max_area.x, 0,
3320                      self->pre_max_area.width, 0);
3321         }
3322     }
3323
3324     if (dir == 0 || dir == 1) /* horz */
3325         self->max_horz = max;
3326     if (dir == 0 || dir == 2) /* vert */
3327         self->max_vert = max;
3328
3329     client_change_state(self); /* change the state hints on the client */
3330
3331     client_setup_decor_and_functions(self, FALSE);
3332     client_move_resize(self, x, y, w, h);
3333 }
3334
3335 void client_shade(ObClient *self, gboolean shade)
3336 {
3337     if ((!(self->functions & OB_CLIENT_FUNC_SHADE) &&
3338          shade) ||                         /* can't shade */
3339         self->shaded == shade) return;     /* already done */
3340
3341     self->shaded = shade;
3342     client_change_state(self);
3343     client_change_wm_state(self); /* the window is being hidden/shown */
3344     /* resize the frame to just the titlebar */
3345     frame_adjust_area(self->frame, FALSE, TRUE, FALSE);
3346 }
3347
3348 static void client_ping_event(ObClient *self, gboolean dead)
3349 {
3350     if (self->not_responding != dead) {
3351         self->not_responding = dead;
3352         client_update_title(self);
3353
3354         if (dead)
3355             /* the client isn't responding, so ask to kill it */
3356             client_prompt_kill(self);
3357         else {
3358             /* it came back to life ! */
3359
3360             if (self->kill_prompt) {
3361                 prompt_unref(self->kill_prompt);
3362                 self->kill_prompt = NULL;
3363             }
3364
3365             self->kill_level = 0;
3366         }
3367     }
3368 }
3369
3370 void client_close(ObClient *self)
3371 {
3372     if (!(self->functions & OB_CLIENT_FUNC_CLOSE)) return;
3373
3374     /* if closing an internal obprompt, that is just cancelling it */
3375     if (self->prompt) {
3376         prompt_cancel(self->prompt);
3377         return;
3378     }
3379
3380     /* in the case that the client provides no means to requesting that it
3381        close, we just kill it */
3382     if (!self->delete_window)
3383         /* don't use client_kill(), we should only kill based on PID in
3384            response to a lack of PING replies */
3385         XKillClient(ob_display, self->window);
3386     else {
3387         /* request the client to close with WM_DELETE_WINDOW */
3388         PROP_MSG_TO(self->window, self->window, wm_protocols,
3389                     prop_atoms.wm_delete_window, event_curtime, 0, 0, 0,
3390                     NoEventMask);
3391
3392         /* we're trying to close the window, so see if it is responding. if it
3393            is not, then we will let them kill the window */
3394         if (self->ping)
3395             ping_start(self, client_ping_event);
3396
3397         /* if we already know the window isn't responding (maybe they clicked
3398            no in the kill dialog but it hasn't come back to life), then show
3399            the kill dialog */
3400         if (self->not_responding)
3401             client_prompt_kill(self);
3402     }
3403 }
3404
3405 #define OB_KILL_RESULT_NO 0
3406 #define OB_KILL_RESULT_YES 1
3407
3408 static gboolean client_kill_requested(ObPrompt *p, gint result, gpointer data)
3409 {
3410     ObClient *self = data;
3411
3412     if (result == OB_KILL_RESULT_YES)
3413         client_kill(self);
3414     return TRUE; /* call the cleanup func */
3415 }
3416
3417 static void client_kill_cleanup(ObPrompt *p, gpointer data)
3418 {
3419     ObClient *self = data;
3420
3421     g_assert(p == self->kill_prompt);
3422
3423     prompt_unref(self->kill_prompt);
3424     self->kill_prompt = NULL;
3425 }
3426
3427 static void client_prompt_kill(ObClient *self)
3428 {
3429     /* check if we're already prompting */
3430     if (!self->kill_prompt) {
3431         ObPromptAnswer answers[] = {
3432             { 0, OB_KILL_RESULT_NO },
3433             { 0, OB_KILL_RESULT_YES }
3434         };
3435         gchar *m;
3436         const gchar *y, *title;
3437
3438         title = self->original_title;
3439         if (title[0] == '\0') {
3440             /* empty string, so use its parent */
3441             ObClient *p = client_search_top_direct_parent(self);
3442             if (p) title = p->original_title;
3443         }
3444
3445         if (client_on_localhost(self)) {
3446             const gchar *sig;
3447
3448             if (self->kill_level == 0)
3449                 sig = "terminate";
3450             else
3451                 sig = "kill";
3452
3453             m = g_strdup_printf
3454                 (_("The window \"%s\" does not seem to be responding.  Do you want to force it to exit by sending the %s signal?"),
3455                  title, sig);
3456             y = _("End Process");
3457         }
3458         else {
3459             m = g_strdup_printf
3460                 (_("The window \"%s\" does not seem to be responding.  Do you want to disconnect it from the X server?"),
3461                  title);
3462             y = _("Disconnect");
3463         }
3464         /* set the dialog buttons' text */
3465         answers[0].text = _("Cancel");  /* "no" */
3466         answers[1].text = y;            /* "yes" */
3467
3468         self->kill_prompt = prompt_new(m, NULL, answers,
3469                                        sizeof(answers)/sizeof(answers[0]),
3470                                        OB_KILL_RESULT_NO, /* default = no */
3471                                        OB_KILL_RESULT_NO, /* cancel = no */
3472                                        client_kill_requested,
3473                                        client_kill_cleanup,
3474                                        self);
3475         g_free(m);
3476     }
3477
3478     prompt_show(self->kill_prompt, self, TRUE);
3479 }
3480
3481 void client_kill(ObClient *self)
3482 {
3483     /* don't kill our own windows */
3484     if (self->prompt) return;
3485
3486     if (client_on_localhost(self) && self->pid) {
3487         /* running on the local host */
3488         if (self->kill_level == 0) {
3489             ob_debug("killing window 0x%x with pid %lu, with SIGTERM",
3490                      self->window, self->pid);
3491             kill(self->pid, SIGTERM);
3492             ++self->kill_level;
3493
3494             /* show that we're trying to kill it */
3495             client_update_title(self);
3496         }
3497         else {
3498             ob_debug("killing window 0x%x with pid %lu, with SIGKILL\n",
3499                      self->window, self->pid);
3500             kill(self->pid, SIGKILL); /* kill -9 */
3501         }
3502     }
3503     else {
3504         /* running on a remote host */
3505         XKillClient(ob_display, self->window);
3506     }
3507 }
3508
3509 void client_hilite(ObClient *self, gboolean hilite)
3510 {
3511     if (self->demands_attention == hilite)
3512         return; /* no change */
3513
3514     /* don't allow focused windows to hilite */
3515     self->demands_attention = hilite && !client_focused(self);
3516     if (self->frame != NULL) { /* if we're mapping, just set the state */
3517         if (self->demands_attention)
3518             frame_flash_start(self->frame);
3519         else
3520             frame_flash_stop(self->frame);
3521         client_change_state(self);
3522     }
3523 }
3524
3525 static void client_set_desktop_recursive(ObClient *self,
3526                                          guint target,
3527                                          gboolean donthide,
3528                                          gboolean dontraise)
3529 {
3530     guint old;
3531     GSList *it;
3532
3533     if (target != self->desktop && self->type != OB_CLIENT_TYPE_DESKTOP) {
3534
3535         ob_debug("Setting desktop %u\n", target+1);
3536
3537         g_assert(target < screen_num_desktops || target == DESKTOP_ALL);
3538
3539         old = self->desktop;
3540         self->desktop = target;
3541         PROP_SET32(self->window, net_wm_desktop, cardinal, target);
3542         /* the frame can display the current desktop state */
3543         frame_adjust_state(self->frame);
3544         /* 'move' the window to the new desktop */
3545         if (!donthide)
3546             client_hide(self);
3547         client_show(self);
3548         /* raise if it was not already on the desktop */
3549         if (old != DESKTOP_ALL && !dontraise)
3550             stacking_raise(CLIENT_AS_WINDOW(self));
3551         if (STRUT_EXISTS(self->strut))
3552             screen_update_areas();
3553         else
3554             /* the new desktop's geometry may be different, so we may need to
3555                resize, for example if we are maximized */
3556             client_reconfigure(self, FALSE);
3557     }
3558
3559     /* move all transients */
3560     for (it = self->transients; it; it = g_slist_next(it))
3561         if (it->data != self)
3562             if (client_is_direct_child(self, it->data))
3563                 client_set_desktop_recursive(it->data, target,
3564                                              donthide, dontraise);
3565 }
3566
3567 void client_set_desktop(ObClient *self, guint target,
3568                         gboolean donthide, gboolean dontraise)
3569 {
3570     self = client_search_top_direct_parent(self);
3571     client_set_desktop_recursive(self, target, donthide, dontraise);
3572 }
3573
3574 gboolean client_is_direct_child(ObClient *parent, ObClient *child)
3575 {
3576     while (child != parent && (child = client_direct_parent(child)));
3577     return child == parent;
3578 }
3579
3580 ObClient *client_search_modal_child(ObClient *self)
3581 {
3582     GSList *it;
3583     ObClient *ret;
3584
3585     for (it = self->transients; it; it = g_slist_next(it)) {
3586         ObClient *c = it->data;
3587         if ((ret = client_search_modal_child(c))) return ret;
3588         if (c->modal) return c;
3589     }
3590     return NULL;
3591 }
3592
3593 gboolean client_validate(ObClient *self)
3594 {
3595     XEvent e;
3596
3597     XSync(ob_display, FALSE); /* get all events on the server */
3598
3599     if (XCheckTypedWindowEvent(ob_display, self->window, DestroyNotify, &e) ||
3600         XCheckTypedWindowEvent(ob_display, self->window, UnmapNotify, &e)) {
3601         XPutBackEvent(ob_display, &e);
3602         return FALSE;
3603     }
3604
3605     return TRUE;
3606 }
3607
3608 void client_set_wm_state(ObClient *self, glong state)
3609 {
3610     if (state == self->wmstate) return; /* no change */
3611
3612     switch (state) {
3613     case IconicState:
3614         client_iconify(self, TRUE, TRUE, FALSE);
3615         break;
3616     case NormalState:
3617         client_iconify(self, FALSE, TRUE, FALSE);
3618         break;
3619     }
3620 }
3621
3622 void client_set_state(ObClient *self, Atom action, glong data1, glong data2)
3623 {
3624     gboolean shaded = self->shaded;
3625     gboolean fullscreen = self->fullscreen;
3626     gboolean undecorated = self->undecorated;
3627     gboolean max_horz = self->max_horz;
3628     gboolean max_vert = self->max_vert;
3629     gboolean modal = self->modal;
3630     gboolean iconic = self->iconic;
3631     gboolean demands_attention = self->demands_attention;
3632     gboolean above = self->above;
3633     gboolean below = self->below;
3634     gint i;
3635
3636     if (!(action == prop_atoms.net_wm_state_add ||
3637           action == prop_atoms.net_wm_state_remove ||
3638           action == prop_atoms.net_wm_state_toggle))
3639         /* an invalid action was passed to the client message, ignore it */
3640         return;
3641
3642     for (i = 0; i < 2; ++i) {
3643         Atom state = i == 0 ? data1 : data2;
3644
3645         if (!state) continue;
3646
3647         /* if toggling, then pick whether we're adding or removing */
3648         if (action == prop_atoms.net_wm_state_toggle) {
3649             if (state == prop_atoms.net_wm_state_modal)
3650                 action = modal ? prop_atoms.net_wm_state_remove :
3651                     prop_atoms.net_wm_state_add;
3652             else if (state == prop_atoms.net_wm_state_maximized_vert)
3653                 action = self->max_vert ? prop_atoms.net_wm_state_remove :
3654                     prop_atoms.net_wm_state_add;
3655             else if (state == prop_atoms.net_wm_state_maximized_horz)
3656                 action = self->max_horz ? prop_atoms.net_wm_state_remove :
3657                     prop_atoms.net_wm_state_add;
3658             else if (state == prop_atoms.net_wm_state_shaded)
3659                 action = shaded ? prop_atoms.net_wm_state_remove :
3660                     prop_atoms.net_wm_state_add;
3661             else if (state == prop_atoms.net_wm_state_skip_taskbar)
3662                 action = self->skip_taskbar ?
3663                     prop_atoms.net_wm_state_remove :
3664                     prop_atoms.net_wm_state_add;
3665             else if (state == prop_atoms.net_wm_state_skip_pager)
3666                 action = self->skip_pager ?
3667                     prop_atoms.net_wm_state_remove :
3668                     prop_atoms.net_wm_state_add;
3669             else if (state == prop_atoms.net_wm_state_hidden)
3670                 action = self->iconic ?
3671                     prop_atoms.net_wm_state_remove :
3672                     prop_atoms.net_wm_state_add;
3673             else if (state == prop_atoms.net_wm_state_fullscreen)
3674                 action = fullscreen ?
3675                     prop_atoms.net_wm_state_remove :
3676                     prop_atoms.net_wm_state_add;
3677             else if (state == prop_atoms.net_wm_state_above)
3678                 action = self->above ? prop_atoms.net_wm_state_remove :
3679                     prop_atoms.net_wm_state_add;
3680             else if (state == prop_atoms.net_wm_state_below)
3681                 action = self->below ? prop_atoms.net_wm_state_remove :
3682                     prop_atoms.net_wm_state_add;
3683             else if (state == prop_atoms.net_wm_state_demands_attention)
3684                 action = self->demands_attention ?
3685                     prop_atoms.net_wm_state_remove :
3686                     prop_atoms.net_wm_state_add;
3687             else if (state == prop_atoms.ob_wm_state_undecorated)
3688                 action = undecorated ? prop_atoms.net_wm_state_remove :
3689                     prop_atoms.net_wm_state_add;
3690         }
3691
3692         if (action == prop_atoms.net_wm_state_add) {
3693             if (state == prop_atoms.net_wm_state_modal) {
3694                 modal = TRUE;
3695             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3696                 max_vert = TRUE;
3697             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3698                 max_horz = TRUE;
3699             } else if (state == prop_atoms.net_wm_state_shaded) {
3700                 shaded = TRUE;
3701             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3702                 self->skip_taskbar = TRUE;
3703             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3704                 self->skip_pager = TRUE;
3705             } else if (state == prop_atoms.net_wm_state_hidden) {
3706                 iconic = TRUE;
3707             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3708                 fullscreen = TRUE;
3709             } else if (state == prop_atoms.net_wm_state_above) {
3710                 above = TRUE;
3711                 below = FALSE;
3712             } else if (state == prop_atoms.net_wm_state_below) {
3713                 above = FALSE;
3714                 below = TRUE;
3715             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3716                 demands_attention = TRUE;
3717             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3718                 undecorated = TRUE;
3719             }
3720
3721         } else { /* action == prop_atoms.net_wm_state_remove */
3722             if (state == prop_atoms.net_wm_state_modal) {
3723                 modal = FALSE;
3724             } else if (state == prop_atoms.net_wm_state_maximized_vert) {
3725                 max_vert = FALSE;
3726             } else if (state == prop_atoms.net_wm_state_maximized_horz) {
3727                 max_horz = FALSE;
3728             } else if (state == prop_atoms.net_wm_state_shaded) {
3729                 shaded = FALSE;
3730             } else if (state == prop_atoms.net_wm_state_skip_taskbar) {
3731                 self->skip_taskbar = FALSE;
3732             } else if (state == prop_atoms.net_wm_state_skip_pager) {
3733                 self->skip_pager = FALSE;
3734             } else if (state == prop_atoms.net_wm_state_hidden) {
3735                 iconic = FALSE;
3736             } else if (state == prop_atoms.net_wm_state_fullscreen) {
3737                 fullscreen = FALSE;
3738             } else if (state == prop_atoms.net_wm_state_above) {
3739                 above = FALSE;
3740             } else if (state == prop_atoms.net_wm_state_below) {
3741                 below = FALSE;
3742             } else if (state == prop_atoms.net_wm_state_demands_attention) {
3743                 demands_attention = FALSE;
3744             } else if (state == prop_atoms.ob_wm_state_undecorated) {
3745                 undecorated = FALSE;
3746             }
3747         }
3748     }
3749
3750     if (max_horz != self->max_horz || max_vert != self->max_vert) {
3751         if (max_horz != self->max_horz && max_vert != self->max_vert) {
3752             /* toggling both */
3753             if (max_horz == max_vert) { /* both going the same way */
3754                 client_maximize(self, max_horz, 0);
3755             } else {
3756                 client_maximize(self, max_horz, 1);
3757                 client_maximize(self, max_vert, 2);
3758             }
3759         } else {
3760             /* toggling one */
3761             if (max_horz != self->max_horz)
3762                 client_maximize(self, max_horz, 1);
3763             else
3764                 client_maximize(self, max_vert, 2);
3765         }
3766     }
3767     /* change fullscreen state before shading, as it will affect if the window
3768        can shade or not */
3769     if (fullscreen != self->fullscreen)
3770         client_fullscreen(self, fullscreen);
3771     if (shaded != self->shaded)
3772         client_shade(self, shaded);
3773     if (undecorated != self->undecorated)
3774         client_set_undecorated(self, undecorated);
3775     if (above != self->above || below != self->below) {
3776         self->above = above;
3777         self->below = below;
3778         client_calc_layer(self);
3779     }
3780
3781     if (modal != self->modal) {
3782         self->modal = modal;
3783         /* when a window changes modality, then its stacking order with its
3784            transients needs to change */
3785         stacking_raise(CLIENT_AS_WINDOW(self));
3786
3787         /* it also may get focused. if something is focused that shouldn't
3788            be focused anymore, then move the focus */
3789         if (focus_client && client_focus_target(focus_client) != focus_client)
3790             client_focus(focus_client);
3791     }
3792
3793     if (iconic != self->iconic)
3794         client_iconify(self, iconic, FALSE, FALSE);
3795
3796     if (demands_attention != self->demands_attention)
3797         client_hilite(self, demands_attention);
3798
3799     client_change_state(self); /* change the hint to reflect these changes */
3800 }
3801
3802 ObClient *client_focus_target(ObClient *self)
3803 {
3804     ObClient *child = NULL;
3805
3806     child = client_search_modal_child(self);
3807     if (child) return child;
3808     return self;
3809 }
3810
3811 gboolean client_can_focus(ObClient *self)
3812 {
3813     /* choose the correct target */
3814     self = client_focus_target(self);
3815
3816     if (!self->frame->visible)
3817         return FALSE;
3818
3819     if (!(self->can_focus || self->focus_notify))
3820         return FALSE;
3821
3822     return TRUE;
3823 }
3824
3825 gboolean client_focus(ObClient *self)
3826 {
3827     /* we might not focus this window, so if we have modal children which would
3828        be focused instead, bring them to this desktop */
3829     client_bring_modal_windows(self);
3830
3831     /* choose the correct target */
3832     self = client_focus_target(self);
3833
3834     if (!client_can_focus(self)) {
3835         ob_debug_type(OB_DEBUG_FOCUS,
3836                       "Client %s can't be focused\n", self->title);
3837         return FALSE;
3838     }
3839
3840     ob_debug_type(OB_DEBUG_FOCUS,
3841                   "Focusing client \"%s\" (0x%x) at time %u\n",
3842                   self->title, self->window, event_curtime);
3843
3844     /* if using focus_delay, stop the timer now so that focus doesn't
3845        go moving on us */
3846     event_halt_focus_delay();
3847
3848     event_cancel_all_key_grabs();
3849
3850     xerror_set_ignore(TRUE);
3851     xerror_occured = FALSE;
3852
3853     if (self->can_focus) {
3854         /* This can cause a BadMatch error with CurrentTime, or if an app
3855            passed in a bad time for _NET_WM_ACTIVE_WINDOW. */
3856         XSetInputFocus(ob_display, self->window, RevertToPointerRoot,
3857                        event_curtime);
3858     }
3859
3860     if (self->focus_notify) {
3861         XEvent ce;
3862         ce.xclient.type = ClientMessage;
3863         ce.xclient.message_type = prop_atoms.wm_protocols;
3864         ce.xclient.display = ob_display;
3865         ce.xclient.window = self->window;
3866         ce.xclient.format = 32;
3867         ce.xclient.data.l[0] = prop_atoms.wm_take_focus;
3868         ce.xclient.data.l[1] = event_curtime;
3869         ce.xclient.data.l[2] = 0l;
3870         ce.xclient.data.l[3] = 0l;
3871         ce.xclient.data.l[4] = 0l;
3872         XSendEvent(ob_display, self->window, FALSE, NoEventMask, &ce);
3873     }
3874
3875     xerror_set_ignore(FALSE);
3876
3877     ob_debug_type(OB_DEBUG_FOCUS, "Error focusing? %d\n", xerror_occured);
3878     return !xerror_occured;
3879 }
3880
3881 static void client_present(ObClient *self, gboolean here, gboolean raise,
3882                            gboolean unshade)
3883 {
3884     if (client_normal(self) && screen_showing_desktop)
3885         screen_show_desktop(FALSE, self);
3886     if (self->iconic)
3887         client_iconify(self, FALSE, here, FALSE);
3888     if (self->desktop != DESKTOP_ALL &&
3889         self->desktop != screen_desktop)
3890     {
3891         if (here)
3892             client_set_desktop(self, screen_desktop, FALSE, TRUE);
3893         else
3894             screen_set_desktop(self->desktop, FALSE);
3895     } else if (!self->frame->visible)
3896         /* if its not visible for other reasons, then don't mess
3897            with it */
3898         return;
3899     if (self->shaded && unshade)
3900         client_shade(self, FALSE);
3901     if (raise)
3902         stacking_raise(CLIENT_AS_WINDOW(self));
3903
3904     client_focus(self);
3905 }
3906
3907 /* this function exists to map to the client_activate message in the ewmh,
3908    the user arg is unused because nobody uses it correctly anyway. */
3909 void client_activate(ObClient *self, gboolean here, gboolean raise,
3910                      gboolean unshade, gboolean user)
3911 {
3912     client_present(self, here, raise, unshade);
3913 }
3914
3915 static void client_bring_windows_recursive(ObClient *self,
3916                                            guint desktop,
3917                                            gboolean helpers,
3918                                            gboolean modals,
3919                                            gboolean iconic)
3920 {
3921     GSList *it;
3922
3923     for (it = self->transients; it; it = g_slist_next(it))
3924         client_bring_windows_recursive(it->data, desktop,
3925                                        helpers, modals, iconic);
3926
3927     if (((helpers && client_helper(self)) ||
3928          (modals && self->modal)) &&
3929         ((self->desktop != desktop && self->desktop != DESKTOP_ALL) ||
3930          (iconic && self->iconic)))
3931     {
3932         if (iconic && self->iconic)
3933             client_iconify(self, FALSE, TRUE, FALSE);
3934         else
3935             client_set_desktop(self, desktop, FALSE, FALSE);
3936     }
3937 }
3938
3939 void client_bring_helper_windows(ObClient *self)
3940 {
3941     client_bring_windows_recursive(self, self->desktop, TRUE, FALSE, FALSE);
3942 }
3943
3944 void client_bring_modal_windows(ObClient *self)
3945 {
3946     client_bring_windows_recursive(self, self->desktop, FALSE, TRUE, TRUE);
3947 }
3948
3949 gboolean client_focused(ObClient *self)
3950 {
3951     return self == focus_client;
3952 }
3953
3954 RrImage* client_icon(ObClient *self)
3955 {
3956     RrImage *ret = NULL;
3957
3958     if (self->icon_set)
3959         ret = self->icon_set;
3960     else if (self->parents) {
3961         GSList *it;
3962         for (it = self->parents; it && !ret; it = g_slist_next(it))
3963             ret = client_icon(it->data);
3964     }
3965     if (!ret)
3966         ret = client_default_icon;
3967     return ret;
3968 }
3969
3970 void client_set_layer(ObClient *self, gint layer)
3971 {
3972     if (layer < 0) {
3973         self->below = TRUE;
3974         self->above = FALSE;
3975     } else if (layer == 0) {
3976         self->below = self->above = FALSE;
3977     } else {
3978         self->below = FALSE;
3979         self->above = TRUE;
3980     }
3981     client_calc_layer(self);
3982     client_change_state(self); /* reflect this in the state hints */
3983 }
3984
3985 void client_set_undecorated(ObClient *self, gboolean undecorated)
3986 {
3987     if (self->undecorated != undecorated &&
3988         /* don't let it undecorate if the function is missing, but let
3989            it redecorate */
3990         (self->functions & OB_CLIENT_FUNC_UNDECORATE || !undecorated))
3991     {
3992         self->undecorated = undecorated;
3993         client_setup_decor_and_functions(self, TRUE);
3994         client_change_state(self); /* reflect this in the state hints */
3995     }
3996 }
3997
3998 guint client_monitor(ObClient *self)
3999 {
4000     return screen_find_monitor(&self->frame->area);
4001 }
4002
4003 ObClient *client_direct_parent(ObClient *self)
4004 {
4005     if (!self->parents) return NULL;
4006     if (self->transient_for_group) return NULL;
4007     return self->parents->data;
4008 }
4009
4010 ObClient *client_search_top_direct_parent(ObClient *self)
4011 {
4012     ObClient *p;
4013     while ((p = client_direct_parent(self))) self = p;
4014     return self;
4015 }
4016
4017 static GSList *client_search_all_top_parents_internal(ObClient *self,
4018                                                       gboolean bylayer,
4019                                                       ObStackingLayer layer)
4020 {
4021     GSList *ret;
4022     ObClient *p;
4023
4024     /* move up the direct transient chain as far as possible */
4025     while ((p = client_direct_parent(self)) &&
4026            (!bylayer || p->layer == layer))
4027         self = p;
4028
4029     if (!self->parents)
4030         ret = g_slist_prepend(NULL, self);
4031     else
4032         ret = g_slist_copy(self->parents);
4033
4034     return ret;
4035 }
4036
4037 GSList *client_search_all_top_parents(ObClient *self)
4038 {
4039     return client_search_all_top_parents_internal(self, FALSE, 0);
4040 }
4041
4042 GSList *client_search_all_top_parents_layer(ObClient *self)
4043 {
4044     return client_search_all_top_parents_internal(self, TRUE, self->layer);
4045 }
4046
4047 ObClient *client_search_focus_parent(ObClient *self)
4048 {
4049     GSList *it;
4050
4051     for (it = self->parents; it; it = g_slist_next(it))
4052         if (client_focused(it->data)) return it->data;
4053
4054     return NULL;
4055 }
4056
4057 ObClient *client_search_focus_parent_full(ObClient *self)
4058 {
4059     GSList *it;
4060     ObClient *ret = NULL;
4061
4062     for (it = self->parents; it; it = g_slist_next(it)) {
4063         if (client_focused(it->data))
4064             ret = it->data;
4065         else
4066             ret = client_search_focus_parent_full(it->data);
4067         if (ret) break;
4068     }
4069     return ret;
4070 }
4071
4072 ObClient *client_search_parent(ObClient *self, ObClient *search)
4073 {
4074     GSList *it;
4075
4076     for (it = self->parents; it; it = g_slist_next(it))
4077         if (it->data == search) return search;
4078
4079     return NULL;
4080 }
4081
4082 ObClient *client_search_transient(ObClient *self, ObClient *search)
4083 {
4084     GSList *sit;
4085
4086     for (sit = self->transients; sit; sit = g_slist_next(sit)) {
4087         if (sit->data == search)
4088             return search;
4089         if (client_search_transient(sit->data, search))
4090             return search;
4091     }
4092     return NULL;
4093 }
4094
4095 static void detect_edge(Rect area, ObDirection dir,
4096                         gint my_head, gint my_size,
4097                         gint my_edge_start, gint my_edge_size,
4098                         gint *dest, gboolean *near_edge)
4099 {
4100     gint edge_start, edge_size, head, tail;
4101     gboolean skip_head = FALSE, skip_tail = FALSE;
4102
4103     switch (dir) {
4104         case OB_DIRECTION_NORTH:
4105         case OB_DIRECTION_SOUTH:
4106             edge_start = area.x;
4107             edge_size = area.width;
4108             break;
4109         case OB_DIRECTION_EAST:
4110         case OB_DIRECTION_WEST:
4111             edge_start = area.y;
4112             edge_size = area.height;
4113             break;
4114         default:
4115             g_assert_not_reached();
4116     }
4117
4118     /* do we collide with this window? */
4119     if (!RANGES_INTERSECT(my_edge_start, my_edge_size,
4120                 edge_start, edge_size))
4121         return;
4122
4123     switch (dir) {
4124         case OB_DIRECTION_NORTH:
4125             head = RECT_BOTTOM(area);
4126             tail = RECT_TOP(area);
4127             break;
4128         case OB_DIRECTION_SOUTH:
4129             head = RECT_TOP(area);
4130             tail = RECT_BOTTOM(area);
4131             break;
4132         case OB_DIRECTION_WEST:
4133             head = RECT_RIGHT(area);
4134             tail = RECT_LEFT(area);
4135             break;
4136         case OB_DIRECTION_EAST:
4137             head = RECT_LEFT(area);
4138             tail = RECT_RIGHT(area);
4139             break;
4140         default:
4141             g_assert_not_reached();
4142     }
4143     switch (dir) {
4144         case OB_DIRECTION_NORTH:
4145         case OB_DIRECTION_WEST:
4146             /* check if our window is past the head of this window */
4147             if (my_head <= head + 1)
4148                 skip_head = TRUE;
4149             /* check if our window's tail is past the tail of this window */
4150             if (my_head + my_size - 1 <= tail)
4151                 skip_tail = TRUE;
4152             /* check if the head of this window is closer than the previously
4153                chosen edge (take into account that the previously chosen
4154                edge might have been a tail, not a head) */
4155             if (head + (*near_edge ? 0 : my_size) <= *dest)
4156                 skip_head = TRUE;
4157             /* check if the tail of this window is closer than the previously
4158                chosen edge (take into account that the previously chosen
4159                edge might have been a head, not a tail) */
4160             if (tail - (!*near_edge ? 0 : my_size) <= *dest)
4161                 skip_tail = TRUE;
4162             break;
4163         case OB_DIRECTION_SOUTH:
4164         case OB_DIRECTION_EAST:
4165             /* check if our window is past the head of this window */
4166             if (my_head >= head - 1)
4167   &