i think that other emacs fix was "the right one" and this one where we don't always...
[mikachu/openbox.git] / openbox / event.c
1 /* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
2
3    event.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 "event.h"
21 #include "debug.h"
22 #include "window.h"
23 #include "openbox.h"
24 #include "dock.h"
25 #include "client.h"
26 #include "xerror.h"
27 #include "prop.h"
28 #include "config.h"
29 #include "screen.h"
30 #include "frame.h"
31 #include "grab.h"
32 #include "menu.h"
33 #include "menuframe.h"
34 #include "keyboard.h"
35 #include "modkeys.h"
36 #include "propwin.h"
37 #include "mouse.h"
38 #include "mainloop.h"
39 #include "framerender.h"
40 #include "focus.h"
41 #include "focus_cycle.h"
42 #include "moveresize.h"
43 #include "group.h"
44 #include "stacking.h"
45 #include "extensions.h"
46 #include "translate.h"
47
48 #include <X11/Xlib.h>
49 #include <X11/Xatom.h>
50 #include <glib.h>
51
52 #ifdef HAVE_SYS_SELECT_H
53 #  include <sys/select.h>
54 #endif
55 #ifdef HAVE_SIGNAL_H
56 #  include <signal.h>
57 #endif
58 #ifdef HAVE_UNISTD_H
59 #  include <unistd.h> /* for usleep() */
60 #endif
61 #ifdef XKB
62 #  include <X11/XKBlib.h>
63 #endif
64
65 #ifdef USE_SM
66 #include <X11/ICE/ICElib.h>
67 #endif
68
69 typedef struct
70 {
71     gboolean ignored;
72 } ObEventData;
73
74 typedef struct
75 {
76     ObClient *client;
77     Time time;
78 } ObFocusDelayData;
79
80 typedef struct
81 {
82     gulong start; /* inclusive */
83     gulong end;   /* inclusive */
84 } ObSerialRange;
85
86 static void event_process(const XEvent *e, gpointer data);
87 static void event_handle_root(XEvent *e);
88 static gboolean event_handle_menu_keyboard(XEvent *e);
89 static gboolean event_handle_menu(XEvent *e);
90 static void event_handle_dock(ObDock *s, XEvent *e);
91 static void event_handle_dockapp(ObDockApp *app, XEvent *e);
92 static void event_handle_client(ObClient *c, XEvent *e);
93 static void event_handle_user_time_window_clients(GSList *l, XEvent *e);
94 static void event_handle_user_input(ObClient *client, XEvent *e);
95 static gboolean is_enter_focus_event_ignored(XEvent *e);
96
97 static void focus_delay_dest(gpointer data);
98 static gboolean focus_delay_cmp(gconstpointer d1, gconstpointer d2);
99 static gboolean focus_delay_func(gpointer data);
100 static void focus_delay_client_dest(ObClient *client, gpointer data);
101
102 /* The time for the current event being processed */
103 Time event_curtime = CurrentTime;
104
105 static gboolean focus_left_screen = FALSE;
106 /*! A list of ObSerialRanges which are to be ignored for mouse enter events */
107 static GSList *ignore_serials = NULL;
108
109 #ifdef USE_SM
110 static void ice_handler(gint fd, gpointer conn)
111 {
112     Bool b;
113     IceProcessMessages(conn, NULL, &b);
114 }
115
116 static void ice_watch(IceConn conn, IcePointer data, Bool opening,
117                       IcePointer *watch_data)
118 {
119     static gint fd = -1;
120
121     if (opening) {
122         fd = IceConnectionNumber(conn);
123         ob_main_loop_fd_add(ob_main_loop, fd, ice_handler, conn, NULL);
124     } else {
125         ob_main_loop_fd_remove(ob_main_loop, fd);
126         fd = -1;
127     }
128 }
129 #endif
130
131 void event_startup(gboolean reconfig)
132 {
133     if (reconfig) return;
134
135     ob_main_loop_x_add(ob_main_loop, event_process, NULL, NULL);
136
137 #ifdef USE_SM
138     IceAddConnectionWatch(ice_watch, NULL);
139 #endif
140
141     client_add_destroy_notify(focus_delay_client_dest, NULL);
142 }
143
144 void event_shutdown(gboolean reconfig)
145 {
146     if (reconfig) return;
147
148 #ifdef USE_SM
149     IceRemoveConnectionWatch(ice_watch, NULL);
150 #endif
151
152     client_remove_destroy_notify(focus_delay_client_dest);
153 }
154
155 static Window event_get_window(XEvent *e)
156 {
157     Window window;
158
159     /* pick a window */
160     switch (e->type) {
161     case SelectionClear:
162         window = RootWindow(ob_display, ob_screen);
163         break;
164     case MapRequest:
165         window = e->xmap.window;
166         break;
167     case UnmapNotify:
168         window = e->xunmap.window;
169         break;
170     case DestroyNotify:
171         window = e->xdestroywindow.window;
172         break;
173     case ConfigureRequest:
174         window = e->xconfigurerequest.window;
175         break;
176     case ConfigureNotify:
177         window = e->xconfigure.window;
178         break;
179     default:
180 #ifdef XKB
181         if (extensions_xkb && e->type == extensions_xkb_event_basep) {
182             switch (((XkbAnyEvent*)e)->xkb_type) {
183             case XkbBellNotify:
184                 window = ((XkbBellNotifyEvent*)e)->window;
185             default:
186                 window = None;
187             }
188         } else
189 #endif
190 #ifdef SYNC
191         if (extensions_sync &&
192             e->type == extensions_sync_event_basep + XSyncAlarmNotify)
193         {
194             window = None;
195         } else
196 #endif
197             window = e->xany.window;
198     }
199     return window;
200 }
201
202 static void event_set_curtime(XEvent *e)
203 {
204     Time t = CurrentTime;
205
206     /* grab the lasttime and hack up the state */
207     switch (e->type) {
208     case ButtonPress:
209     case ButtonRelease:
210         t = e->xbutton.time;
211         break;
212     case KeyPress:
213         t = e->xkey.time;
214         break;
215     case KeyRelease:
216         t = e->xkey.time;
217         break;
218     case MotionNotify:
219         t = e->xmotion.time;
220         break;
221     case PropertyNotify:
222         t = e->xproperty.time;
223         break;
224     case EnterNotify:
225     case LeaveNotify:
226         t = e->xcrossing.time;
227         break;
228     default:
229 #ifdef SYNC
230         if (extensions_sync &&
231             e->type == extensions_sync_event_basep + XSyncAlarmNotify)
232         {
233             t = ((XSyncAlarmNotifyEvent*)e)->time;
234         }
235 #endif
236         /* if more event types are anticipated, get their timestamp
237            explicitly */
238         break;
239     }
240
241     event_curtime = t;
242 }
243
244 static void event_hack_mods(XEvent *e)
245 {
246 #ifdef XKB
247     XkbStateRec xkb_state;
248 #endif
249
250     switch (e->type) {
251     case ButtonPress:
252     case ButtonRelease:
253         e->xbutton.state = modkeys_only_modifier_masks(e->xbutton.state);
254         break;
255     case KeyPress:
256         e->xkey.state = modkeys_only_modifier_masks(e->xkey.state);
257         break;
258     case KeyRelease:
259         e->xkey.state = modkeys_only_modifier_masks(e->xkey.state);
260 #ifdef XKB
261         if (XkbGetState(ob_display, XkbUseCoreKbd, &xkb_state) == Success) {
262             e->xkey.state = xkb_state.compat_state;
263             break;
264         }
265 #endif
266         /* remove from the state the mask of the modifier key being released,
267            if it is a modifier key being released that is */
268         e->xkey.state &= ~modkeys_keycode_to_mask(e->xkey.keycode);
269         break;
270     case MotionNotify:
271         e->xmotion.state = modkeys_only_modifier_masks(e->xmotion.state);
272         /* compress events */
273         {
274             XEvent ce;
275             while (XCheckTypedWindowEvent(ob_display, e->xmotion.window,
276                                           e->type, &ce)) {
277                 e->xmotion.x = ce.xmotion.x;
278                 e->xmotion.y = ce.xmotion.y;
279                 e->xmotion.x_root = ce.xmotion.x_root;
280                 e->xmotion.y_root = ce.xmotion.y_root;
281             }
282         }
283         break;
284     }
285 }
286
287 static gboolean wanted_focusevent(XEvent *e, gboolean in_client_only)
288 {
289     gint mode = e->xfocus.mode;
290     gint detail = e->xfocus.detail;
291     Window win = e->xany.window;
292
293     if (e->type == FocusIn) {
294         /* These are ones we never want.. */
295
296         /* This means focus was given by a keyboard/mouse grab. */
297         if (mode == NotifyGrab)
298             return FALSE;
299         /* This means focus was given back from a keyboard/mouse grab. */
300         if (mode == NotifyUngrab)
301             return FALSE;
302
303         /* These are the ones we want.. */
304
305         if (win == RootWindow(ob_display, ob_screen)) {
306             /* If looking for a focus in on a client, then always return
307                FALSE for focus in's to the root window */
308             if (in_client_only)
309                 return FALSE;
310             /* This means focus reverted off of a client */
311             else if (detail == NotifyPointerRoot ||
312                      detail == NotifyDetailNone ||
313                      detail == NotifyInferior ||
314                      /* This means focus got here from another screen */
315                      detail == NotifyNonlinear)
316                 return TRUE;
317             else
318                 return FALSE;
319         }
320
321         /* It was on a client, was it a valid one?
322            It's possible to get a FocusIn event for a client that was managed
323            but has disappeared.
324         */
325         if (in_client_only) {
326             ObWindow *w = g_hash_table_lookup(window_map, &e->xfocus.window);
327             if (!w || !WINDOW_IS_CLIENT(w))
328                 return FALSE;
329         }
330         else {
331             /* This means focus reverted to parent from the client (this
332                happens often during iconify animation) */
333             if (detail == NotifyInferior)
334                 return TRUE;
335         }
336
337         /* This means focus moved from the root window to a client */
338         if (detail == NotifyVirtual)
339             return TRUE;
340         /* This means focus moved from one client to another */
341         if (detail == NotifyNonlinearVirtual)
342             return TRUE;
343
344         /* Otherwise.. */
345         return FALSE;
346     } else {
347         g_assert(e->type == FocusOut);
348
349         /* These are ones we never want.. */
350
351         /* This means focus was taken by a keyboard/mouse grab. */
352         if (mode == NotifyGrab)
353             return FALSE;
354         /* This means focus was grabbed on a window and it was released. */
355         if (mode == NotifyUngrab)
356             return FALSE;
357
358         /* Focus left the root window revertedto state */
359         if (win == RootWindow(ob_display, ob_screen))
360             return FALSE;
361
362         /* These are the ones we want.. */
363
364         /* This means focus moved from a client to the root window */
365         if (detail == NotifyVirtual)
366             return TRUE;
367         /* This means focus moved from one client to another */
368         if (detail == NotifyNonlinearVirtual)
369             return TRUE;
370
371         /* Otherwise.. */
372         return FALSE;
373     }
374 }
375
376 static Bool event_look_for_focusin(Display *d, XEvent *e, XPointer arg)
377 {
378     return e->type == FocusIn && wanted_focusevent(e, FALSE);
379 }
380
381 static Bool event_look_for_focusin_client(Display *d, XEvent *e, XPointer arg)
382 {
383     return e->type == FocusIn && wanted_focusevent(e, TRUE);
384 }
385
386 static void print_focusevent(XEvent *e)
387 {
388     gint mode = e->xfocus.mode;
389     gint detail = e->xfocus.detail;
390     Window win = e->xany.window;
391     const gchar *modestr, *detailstr;
392
393     switch (mode) {
394     case NotifyNormal:       modestr="NotifyNormal";       break;
395     case NotifyGrab:         modestr="NotifyGrab";         break;
396     case NotifyUngrab:       modestr="NotifyUngrab";       break;
397     case NotifyWhileGrabbed: modestr="NotifyWhileGrabbed"; break;
398     }
399     switch (detail) {
400     case NotifyAncestor:    detailstr="NotifyAncestor";    break;
401     case NotifyVirtual:     detailstr="NotifyVirtual";     break;
402     case NotifyInferior:    detailstr="NotifyInferior";    break;
403     case NotifyNonlinear:   detailstr="NotifyNonlinear";   break;
404     case NotifyNonlinearVirtual: detailstr="NotifyNonlinearVirtual"; break;
405     case NotifyPointer:     detailstr="NotifyPointer";     break;
406     case NotifyPointerRoot: detailstr="NotifyPointerRoot"; break;
407     case NotifyDetailNone:  detailstr="NotifyDetailNone";  break;
408     }
409
410     if (mode == NotifyGrab || mode == NotifyUngrab)
411         return;
412
413     g_assert(modestr);
414     g_assert(detailstr);
415     ob_debug_type(OB_DEBUG_FOCUS, "Focus%s 0x%x mode=%s detail=%s\n",
416                   (e->xfocus.type == FocusIn ? "In" : "Out"),
417                   win,
418                   modestr, detailstr);
419
420 }
421
422 static gboolean event_ignore(XEvent *e, ObClient *client)
423 {
424     switch(e->type) {
425     case FocusIn:
426         print_focusevent(e);
427         if (!wanted_focusevent(e, FALSE))
428             return TRUE;
429         break;
430     case FocusOut:
431         print_focusevent(e);
432         if (!wanted_focusevent(e, FALSE))
433             return TRUE;
434         break;
435     }
436     return FALSE;
437 }
438
439 static void event_process(const XEvent *ec, gpointer data)
440 {
441     Window window;
442     ObClient *client = NULL;
443     ObDock *dock = NULL;
444     ObDockApp *dockapp = NULL;
445     ObWindow *obwin = NULL;
446     GSList *timewinclients = NULL;
447     XEvent ee, *e;
448     ObEventData *ed = data;
449
450     /* make a copy we can mangle */
451     ee = *ec;
452     e = &ee;
453
454     window = event_get_window(e);
455     if (e->type != PropertyNotify ||
456         !(timewinclients = propwin_get_clients(window,
457                                                OB_PROPWIN_USER_TIME)))
458         if ((obwin = g_hash_table_lookup(window_map, &window))) {
459             switch (obwin->type) {
460             case Window_Dock:
461                 dock = WINDOW_AS_DOCK(obwin);
462                 break;
463             case Window_DockApp:
464                 dockapp = WINDOW_AS_DOCKAPP(obwin);
465                 break;
466             case Window_Client:
467                 client = WINDOW_AS_CLIENT(obwin);
468                 break;
469             case Window_Menu:
470             case Window_Internal:
471                 /* not to be used for events */
472                 g_assert_not_reached();
473                 break;
474             }
475         }
476
477     event_set_curtime(e);
478     event_hack_mods(e);
479     if (event_ignore(e, client)) {
480         if (ed)
481             ed->ignored = TRUE;
482         return;
483     } else if (ed)
484             ed->ignored = FALSE;
485
486     /* deal with it in the kernel */
487
488     if (menu_frame_visible &&
489         (e->type == EnterNotify || e->type == LeaveNotify))
490     {
491         /* crossing events for menu */
492         event_handle_menu(e);
493     } else if (e->type == FocusIn) {
494         if (client &&
495             e->xfocus.detail == NotifyInferior)
496         {
497             ob_debug_type(OB_DEBUG_FOCUS,
498                           "Focus went to the frame window");
499
500             focus_left_screen = FALSE;
501
502             focus_fallback(FALSE, config_focus_under_mouse, TRUE);
503
504             /* We don't get a FocusOut for this case, because it's just moving
505                from our Inferior up to us. This happens when iconifying a
506                window with RevertToParent focus */
507             frame_adjust_focus(client->frame, FALSE);
508             /* focus_set_client(NULL) has already been called */
509             client_calc_layer(client);
510         }
511         if (e->xfocus.detail == NotifyPointerRoot ||
512             e->xfocus.detail == NotifyDetailNone ||
513             e->xfocus.detail == NotifyInferior ||
514             e->xfocus.detail == NotifyNonlinear)
515         {
516             XEvent ce;
517
518             ob_debug_type(OB_DEBUG_FOCUS,
519                           "Focus went to root or pointer root/none\n");
520
521             if (e->xfocus.detail == NotifyInferior ||
522                 e->xfocus.detail == NotifyNonlinear)
523             {
524                 focus_left_screen = FALSE;
525             }
526
527             /* If another FocusIn is in the queue then don't fallback yet. This
528                fixes the fun case of:
529                window map -> send focusin
530                window unmap -> get focusout
531                window map -> send focusin
532                get first focus out -> fall back to something (new window
533                  hasn't received focus yet, so something else) -> send focusin
534                which means the "something else" is the last thing to get a
535                focusin sent to it, so the new window doesn't end up with focus.
536
537                But if the other focus in is something like PointerRoot then we
538                still want to fall back.
539             */
540             if (XCheckIfEvent(ob_display, &ce, event_look_for_focusin_client,
541                               NULL))
542             {
543                 XPutBackEvent(ob_display, &ce);
544                 ob_debug_type(OB_DEBUG_FOCUS,
545                               "  but another FocusIn is coming\n");
546             } else {
547                 /* Focus has been reverted.
548
549                    FocusOut events come after UnmapNotify, so we don't need to
550                    worry about focusing an invalid window
551                 */
552
553                 if (!focus_left_screen)
554                     focus_fallback(FALSE, config_focus_under_mouse, TRUE);
555             }
556         }
557         else if (!client)
558         {
559             ob_debug_type(OB_DEBUG_FOCUS,
560                           "Focus went to a window that is already gone\n");
561
562             /* If you send focus to a window and then it disappears, you can
563                get the FocusIn for it, after it is unmanaged.
564                Just wait for the next FocusOut/FocusIn pair, but make note that
565                the window that was focused no longer is. */
566             focus_set_client(NULL);
567         }
568         else if (client != focus_client) {
569             focus_left_screen = FALSE;
570             frame_adjust_focus(client->frame, TRUE);
571             focus_set_client(client);
572             client_calc_layer(client);
573             client_bring_helper_windows(client);
574         }
575     } else if (e->type == FocusOut) {
576         XEvent ce;
577
578         /* Look for the followup FocusIn */
579         if (!XCheckIfEvent(ob_display, &ce, event_look_for_focusin, NULL)) {
580             /* There is no FocusIn, this means focus went to a window that
581                is not being managed, or a window on another screen. */
582             Window win, root;
583             gint i;
584             guint u;
585             xerror_set_ignore(TRUE);
586             if (XGetInputFocus(ob_display, &win, &i) != 0 &&
587                 XGetGeometry(ob_display, win, &root, &i,&i,&u,&u,&u,&u) != 0 &&
588                 root != RootWindow(ob_display, ob_screen))
589             {
590                 ob_debug_type(OB_DEBUG_FOCUS,
591                               "Focus went to another screen !\n");
592                 focus_left_screen = TRUE;
593             }
594             else
595                 ob_debug_type(OB_DEBUG_FOCUS,
596                               "Focus went to a black hole !\n");
597             xerror_set_ignore(FALSE);
598             /* nothing is focused */
599             focus_set_client(NULL);
600         } else {
601             /* Focus moved, so process the FocusIn event */
602             ObEventData ed = { .ignored = FALSE };
603             event_process(&ce, &ed);
604             if (ed.ignored) {
605                 /* The FocusIn was ignored, this means it was on a window
606                    that isn't a client. */
607                 ob_debug_type(OB_DEBUG_FOCUS,
608                               "Focus went to an unmanaged window 0x%x !\n",
609                               ce.xfocus.window);
610                 focus_fallback(TRUE, config_focus_under_mouse, TRUE);
611             }
612         }
613
614         if (client && client != focus_client) {
615             frame_adjust_focus(client->frame, FALSE);
616             /* focus_set_client(NULL) has already been called in this
617                section or by focus_fallback */
618             client_calc_layer(client);
619         }
620     } else if (timewinclients)
621         event_handle_user_time_window_clients(timewinclients, e);
622     else if (client)
623         event_handle_client(client, e);
624     else if (dockapp)
625         event_handle_dockapp(dockapp, e);
626     else if (dock)
627         event_handle_dock(dock, e);
628     else if (window == RootWindow(ob_display, ob_screen))
629         event_handle_root(e);
630     else if (e->type == MapRequest)
631         client_manage(window);
632     else if (e->type == ClientMessage) {
633         /* This is for _NET_WM_REQUEST_FRAME_EXTENTS messages. They come for
634            windows that are not managed yet. */
635         if (e->xclient.message_type == prop_atoms.net_request_frame_extents) {
636             /* Pretend to manage the client, getting information used to
637                determine its decorations */
638             ObClient *c = client_fake_manage(e->xclient.window);
639             gulong vals[4];
640
641             /* set the frame extents on the window */
642             vals[0] = c->frame->size.left;
643             vals[1] = c->frame->size.right;
644             vals[2] = c->frame->size.top;
645             vals[3] = c->frame->size.bottom;
646             PROP_SETA32(e->xclient.window, net_frame_extents,
647                         cardinal, vals, 4);
648
649             /* Free the pretend client */
650             client_fake_unmanage(c);
651         }
652     }
653     else if (e->type == ConfigureRequest) {
654         /* unhandled configure requests must be used to configure the
655            window directly */
656         XWindowChanges xwc;
657
658         xwc.x = e->xconfigurerequest.x;
659         xwc.y = e->xconfigurerequest.y;
660         xwc.width = e->xconfigurerequest.width;
661         xwc.height = e->xconfigurerequest.height;
662         xwc.border_width = e->xconfigurerequest.border_width;
663         xwc.sibling = e->xconfigurerequest.above;
664         xwc.stack_mode = e->xconfigurerequest.detail;
665        
666         /* we are not to be held responsible if someone sends us an
667            invalid request! */
668         xerror_set_ignore(TRUE);
669         XConfigureWindow(ob_display, window,
670                          e->xconfigurerequest.value_mask, &xwc);
671         xerror_set_ignore(FALSE);
672     }
673 #ifdef SYNC
674     else if (extensions_sync &&
675         e->type == extensions_sync_event_basep + XSyncAlarmNotify)
676     {
677         XSyncAlarmNotifyEvent *se = (XSyncAlarmNotifyEvent*)e;
678         if (se->alarm == moveresize_alarm && moveresize_in_progress)
679             moveresize_event(e);
680     }
681 #endif
682
683     if (e->type == ButtonPress || e->type == ButtonRelease ||
684         e->type == MotionNotify || e->type == KeyPress ||
685         e->type == KeyRelease)
686     {
687         event_handle_user_input(client, e);
688     }
689
690     /* if something happens and it's not from an XEvent, then we don't know
691        the time */
692     event_curtime = CurrentTime;
693 }
694
695 static void event_handle_root(XEvent *e)
696 {
697     Atom msgtype;
698      
699     switch(e->type) {
700     case SelectionClear:
701         ob_debug("Another WM has requested to replace us. Exiting.\n");
702         ob_exit_replace();
703         break;
704
705     case ClientMessage:
706         if (e->xclient.format != 32) break;
707
708         msgtype = e->xclient.message_type;
709         if (msgtype == prop_atoms.net_current_desktop) {
710             guint d = e->xclient.data.l[0];
711             if (d < screen_num_desktops) {
712                 event_curtime = e->xclient.data.l[1];
713                 if (event_curtime == 0)
714                     ob_debug_type(OB_DEBUG_APP_BUGS,
715                                   "_NET_CURRENT_DESKTOP message is missing "
716                                   "a timestamp\n");
717                 screen_set_desktop(d, TRUE);
718             }
719         } else if (msgtype == prop_atoms.net_number_of_desktops) {
720             guint d = e->xclient.data.l[0];
721             if (d > 0 && d <= 1000)
722                 screen_set_num_desktops(d);
723         } else if (msgtype == prop_atoms.net_showing_desktop) {
724             screen_show_desktop(e->xclient.data.l[0] != 0, NULL);
725         } else if (msgtype == prop_atoms.ob_control) {
726             ob_debug("OB_CONTROL: %d\n", e->xclient.data.l[0]);
727             if (e->xclient.data.l[0] == 1)
728                 ob_reconfigure();
729             else if (e->xclient.data.l[0] == 2)
730                 ob_restart();
731         }
732         break;
733     case PropertyNotify:
734         if (e->xproperty.atom == prop_atoms.net_desktop_names) {
735             ob_debug("UPDATE DESKTOP NAMES\n");
736             screen_update_desktop_names();
737         }
738         else if (e->xproperty.atom == prop_atoms.net_desktop_layout)
739             screen_update_layout();
740         break;
741     case ConfigureNotify:
742 #ifdef XRANDR
743         XRRUpdateConfiguration(e);
744 #endif
745         screen_resize();
746         break;
747     default:
748         ;
749     }
750 }
751
752 void event_enter_client(ObClient *client)
753 {
754     g_assert(config_focus_follow);
755
756     if (client_enter_focusable(client) && client_can_focus(client)) {
757         if (config_focus_delay) {
758             ObFocusDelayData *data;
759
760             ob_main_loop_timeout_remove(ob_main_loop, focus_delay_func);
761
762             data = g_new(ObFocusDelayData, 1);
763             data->client = client;
764             data->time = event_curtime;
765
766             ob_main_loop_timeout_add(ob_main_loop,
767                                      config_focus_delay,
768                                      focus_delay_func,
769                                      data, focus_delay_cmp, focus_delay_dest);
770         } else {
771             ObFocusDelayData data;
772             data.client = client;
773             data.time = event_curtime;
774             focus_delay_func(&data);
775         }
776     }
777 }
778
779 static void event_handle_user_time_window_clients(GSList *l, XEvent *e)
780 {
781     g_assert(e->type == PropertyNotify);
782     if (e->xproperty.atom == prop_atoms.net_wm_user_time) {
783         for (; l; l = g_slist_next(l))
784             client_update_user_time(l->data);
785     }
786 }
787
788 static void event_handle_client(ObClient *client, XEvent *e)
789 {
790     XEvent ce;
791     Atom msgtype;
792     ObFrameContext con;
793     static gint px = -1, py = -1;
794     static guint pb = 0;
795      
796     switch (e->type) {
797     case ButtonPress:
798         /* save where the press occured for the first button pressed */
799         if (!pb) {
800             pb = e->xbutton.button;
801             px = e->xbutton.x;
802             py = e->xbutton.y;
803         }
804     case ButtonRelease:
805         /* Wheel buttons don't draw because they are an instant click, so it
806            is a waste of resources to go drawing it.
807            if the user is doing an intereactive thing, or has a menu open then
808            the mouse is grabbed (possibly) and if we get these events we don't
809            want to deal with them
810         */
811         if (!(e->xbutton.button == 4 || e->xbutton.button == 5) &&
812             !keyboard_interactively_grabbed() &&
813             !menu_frame_visible)
814         {
815             /* use where the press occured */
816             con = frame_context(client, e->xbutton.window, px, py);
817             con = mouse_button_frame_context(con, e->xbutton.button,
818                                              e->xbutton.state);
819
820             if (e->type == ButtonRelease && e->xbutton.button == pb)
821                 pb = 0, px = py = -1;
822
823             switch (con) {
824             case OB_FRAME_CONTEXT_MAXIMIZE:
825                 client->frame->max_press = (e->type == ButtonPress);
826                 framerender_frame(client->frame);
827                 break;
828             case OB_FRAME_CONTEXT_CLOSE:
829                 client->frame->close_press = (e->type == ButtonPress);
830                 framerender_frame(client->frame);
831                 break;
832             case OB_FRAME_CONTEXT_ICONIFY:
833                 client->frame->iconify_press = (e->type == ButtonPress);
834                 framerender_frame(client->frame);
835                 break;
836             case OB_FRAME_CONTEXT_ALLDESKTOPS:
837                 client->frame->desk_press = (e->type == ButtonPress);
838                 framerender_frame(client->frame);
839                 break; 
840             case OB_FRAME_CONTEXT_SHADE:
841                 client->frame->shade_press = (e->type == ButtonPress);
842                 framerender_frame(client->frame);
843                 break;
844             default:
845                 /* nothing changes with clicks for any other contexts */
846                 break;
847             }
848         }
849         break;
850     case MotionNotify:
851         /* when there is a grab on the pointer, we won't get enter/leave
852            notifies, but we still get motion events */
853         if (grab_on_pointer()) break;
854
855         con = frame_context(client, e->xmotion.window,
856                             e->xmotion.x, e->xmotion.y);
857         switch (con) {
858         case OB_FRAME_CONTEXT_TITLEBAR:
859         case OB_FRAME_CONTEXT_TLCORNER:
860         case OB_FRAME_CONTEXT_TRCORNER:
861             /* we've left the button area inside the titlebar */
862             if (client->frame->max_hover || client->frame->desk_hover ||
863                 client->frame->shade_hover || client->frame->iconify_hover ||
864                 client->frame->close_hover)
865             {
866                 client->frame->max_hover = FALSE;
867                 client->frame->desk_hover = FALSE;
868                 client->frame->shade_hover = FALSE;
869                 client->frame->iconify_hover = FALSE;
870                 client->frame->close_hover = FALSE;
871                 frame_adjust_state(client->frame);
872             }
873             break;
874         case OB_FRAME_CONTEXT_MAXIMIZE:
875             if (!client->frame->max_hover) {
876                 client->frame->max_hover = TRUE;
877                 frame_adjust_state(client->frame);
878             }
879             break;
880         case OB_FRAME_CONTEXT_ALLDESKTOPS:
881             if (!client->frame->desk_hover) {
882                 client->frame->desk_hover = TRUE;
883                 frame_adjust_state(client->frame);
884             }
885             break;
886         case OB_FRAME_CONTEXT_SHADE:
887             if (!client->frame->shade_hover) {
888                 client->frame->shade_hover = TRUE;
889                 frame_adjust_state(client->frame);
890             }
891             break;
892         case OB_FRAME_CONTEXT_ICONIFY:
893             if (!client->frame->iconify_hover) {
894                 client->frame->iconify_hover = TRUE;
895                 frame_adjust_state(client->frame);
896             }
897             break;
898         case OB_FRAME_CONTEXT_CLOSE:
899             if (!client->frame->close_hover) {
900                 client->frame->close_hover = TRUE;
901                 frame_adjust_state(client->frame);
902             }
903             break;
904         default:
905             break;
906         }
907         break;
908     case LeaveNotify:
909         con = frame_context(client, e->xcrossing.window,
910                             e->xcrossing.x, e->xcrossing.y);
911         switch (con) {
912         case OB_FRAME_CONTEXT_TITLEBAR:
913         case OB_FRAME_CONTEXT_TLCORNER:
914         case OB_FRAME_CONTEXT_TRCORNER:
915             /* we've left the button area inside the titlebar */
916             if (client->frame->max_hover || client->frame->desk_hover ||
917                 client->frame->shade_hover || client->frame->iconify_hover ||
918                 client->frame->close_hover)
919             {
920                 client->frame->max_hover = FALSE;
921                 client->frame->desk_hover = FALSE;
922                 client->frame->shade_hover = FALSE;
923                 client->frame->iconify_hover = FALSE;
924                 client->frame->close_hover = FALSE;
925                 frame_adjust_state(client->frame);
926             }
927             break;
928         case OB_FRAME_CONTEXT_MAXIMIZE:
929             client->frame->max_hover = FALSE;
930             frame_adjust_state(client->frame);
931             break;
932         case OB_FRAME_CONTEXT_ALLDESKTOPS:
933             client->frame->desk_hover = FALSE;
934             frame_adjust_state(client->frame);
935             break;
936         case OB_FRAME_CONTEXT_SHADE:
937             client->frame->shade_hover = FALSE;
938             frame_adjust_state(client->frame);
939             break;
940         case OB_FRAME_CONTEXT_ICONIFY:
941             client->frame->iconify_hover = FALSE;
942             frame_adjust_state(client->frame);
943             break;
944         case OB_FRAME_CONTEXT_CLOSE:
945             client->frame->close_hover = FALSE;
946             frame_adjust_state(client->frame);
947             break;
948         case OB_FRAME_CONTEXT_FRAME:
949             /* When the mouse leaves an animating window, don't use the
950                corresponding enter events. Pretend like the animating window
951                doesn't even exist..! */
952             if (frame_iconify_animating(client->frame))
953                 event_end_ignore_all_enters(event_start_ignore_all_enters());
954
955             ob_debug_type(OB_DEBUG_FOCUS,
956                           "%sNotify mode %d detail %d on %lx\n",
957                           (e->type == EnterNotify ? "Enter" : "Leave"),
958                           e->xcrossing.mode,
959                           e->xcrossing.detail, (client?client->window:0));
960             if (keyboard_interactively_grabbed())
961                 break;
962             if (config_focus_follow && config_focus_delay &&
963                 /* leave inferior events can happen when the mouse goes onto
964                    the window's border and then into the window before the
965                    delay is up */
966                 e->xcrossing.detail != NotifyInferior)
967             {
968                 ob_main_loop_timeout_remove_data(ob_main_loop,
969                                                  focus_delay_func,
970                                                  client, FALSE);
971             }
972             break;
973         default:
974             break;
975         }
976         break;
977     case EnterNotify:
978     {
979         con = frame_context(client, e->xcrossing.window,
980                             e->xcrossing.x, e->xcrossing.y);
981         switch (con) {
982         case OB_FRAME_CONTEXT_MAXIMIZE:
983             client->frame->max_hover = TRUE;
984             frame_adjust_state(client->frame);
985             break;
986         case OB_FRAME_CONTEXT_ALLDESKTOPS:
987             client->frame->desk_hover = TRUE;
988             frame_adjust_state(client->frame);
989             break;
990         case OB_FRAME_CONTEXT_SHADE:
991             client->frame->shade_hover = TRUE;
992             frame_adjust_state(client->frame);
993             break;
994         case OB_FRAME_CONTEXT_ICONIFY:
995             client->frame->iconify_hover = TRUE;
996             frame_adjust_state(client->frame);
997             break;
998         case OB_FRAME_CONTEXT_CLOSE:
999             client->frame->close_hover = TRUE;
1000             frame_adjust_state(client->frame);
1001             break;
1002         case OB_FRAME_CONTEXT_FRAME:
1003             if (keyboard_interactively_grabbed())
1004                 break;
1005             if (e->xcrossing.mode == NotifyGrab ||
1006                 e->xcrossing.mode == NotifyUngrab ||
1007                 /*ignore enters when we're already in the window */
1008                 e->xcrossing.detail == NotifyInferior ||
1009                 is_enter_focus_event_ignored(e))
1010             {
1011                 ob_debug_type(OB_DEBUG_FOCUS,
1012                               "%sNotify mode %d detail %d on %lx IGNORED\n",
1013                               (e->type == EnterNotify ? "Enter" : "Leave"),
1014                               e->xcrossing.mode,
1015                               e->xcrossing.detail, client?client->window:0);
1016             }
1017             else {
1018                 ob_debug_type(OB_DEBUG_FOCUS,
1019                               "%sNotify mode %d detail %d on %lx, "
1020                               "focusing window\n",
1021                               (e->type == EnterNotify ? "Enter" : "Leave"),
1022                               e->xcrossing.mode,
1023                               e->xcrossing.detail, (client?client->window:0));
1024                 if (config_focus_follow)
1025                     event_enter_client(client);
1026             }
1027             break;
1028         default:
1029             break;
1030         }
1031         break;
1032     }
1033     case ConfigureRequest:
1034     {
1035         /* dont compress these unless you're going to watch for property
1036            notifies in between (these can change what the configure would
1037            do to the window).
1038            also you can't compress stacking events
1039         */
1040
1041         gint x, y, w, h;
1042         gboolean move = FALSE;
1043         gboolean resize = FALSE;
1044
1045         /* get the current area */
1046         RECT_TO_DIMS(client->area, x, y, w, h);
1047
1048         ob_debug("ConfigureRequest for \"%s\" desktop %d wmstate %d "
1049                  "visibile %d\n"
1050                  "                     x %d y %d w %d h %d b %d\n",
1051                  client->title,
1052                  screen_desktop, client->wmstate, client->frame->visible,
1053                  x, y, w, h, client->border_width);
1054
1055         if (e->xconfigurerequest.value_mask & CWBorderWidth)
1056             if (client->border_width != e->xconfigurerequest.border_width) {
1057                 client->border_width = e->xconfigurerequest.border_width;
1058
1059                 /* if the border width is changing then that is the same
1060                    as requesting a resize, but we don't actually change
1061                    the client's border, so it will change their root
1062                    coordiantes (since they include the border width) and
1063                    we need to a notify then */
1064                 move = TRUE;
1065             }
1066
1067
1068         if (e->xconfigurerequest.value_mask & CWStackMode) {
1069             ObClient *sibling = NULL;
1070             gulong ignore_start;
1071
1072             /* get the sibling */
1073             if (e->xconfigurerequest.value_mask & CWSibling) {
1074                 ObWindow *win;
1075                 win = g_hash_table_lookup(window_map,
1076                                           &e->xconfigurerequest.above);
1077                 if (WINDOW_IS_CLIENT(win) && WINDOW_AS_CLIENT(win) != client)
1078                     sibling = WINDOW_AS_CLIENT(win);
1079             }
1080
1081             /* activate it rather than just focus it */
1082             if (!config_focus_under_mouse)
1083                 ignore_start = event_start_ignore_all_enters();
1084             stacking_restack_request(client, sibling,
1085                                      e->xconfigurerequest.detail,
1086                                      TRUE);
1087             if (!config_focus_under_mouse)
1088                 event_end_ignore_all_enters(ignore_start);
1089
1090             /* if a stacking change moves the window without resizing */
1091             move = TRUE;
1092         }
1093
1094         if ((e->xconfigurerequest.value_mask & CWX) ||
1095             (e->xconfigurerequest.value_mask & CWY) ||
1096             (e->xconfigurerequest.value_mask & CWWidth) ||
1097             (e->xconfigurerequest.value_mask & CWHeight))
1098         {
1099             if (e->xconfigurerequest.value_mask & CWX) {
1100                 /* don't allow clients to move shaded windows (fvwm does this)
1101                  */
1102                 if (!client->shaded)
1103                     x = e->xconfigurerequest.x;
1104                 move = TRUE;
1105             }
1106             if (e->xconfigurerequest.value_mask & CWY) {
1107                 /* don't allow clients to move shaded windows (fvwm does this)
1108                  */
1109                 if (!client->shaded)
1110                     y = e->xconfigurerequest.y;
1111                 move = TRUE;
1112             }
1113
1114             if (e->xconfigurerequest.value_mask & CWWidth) {
1115                 w = e->xconfigurerequest.width;
1116                 resize = TRUE;
1117             }
1118             if (e->xconfigurerequest.value_mask & CWHeight) {
1119                 h = e->xconfigurerequest.height;
1120                 resize = TRUE;
1121             }
1122         }
1123
1124         ob_debug("ConfigureRequest x(%d) %d y(%d) %d w(%d) %d h(%d) %d "
1125                  "move %d resize %d\n",
1126                  e->xconfigurerequest.value_mask & CWX, x,
1127                  e->xconfigurerequest.value_mask & CWY, y,
1128                  e->xconfigurerequest.value_mask & CWWidth, w,
1129                  e->xconfigurerequest.value_mask & CWHeight, h,
1130                  move, resize);
1131
1132         /* check for broken apps moving to their root position
1133
1134            XXX remove this some day...that would be nice. right now all
1135            kde apps do this when they try activate themselves on another
1136            desktop. eg. open amarok window on desktop 1, switch to desktop
1137            2, click amarok tray icon. it will move by its decoration size.
1138         */
1139         if (x != client->area.x &&
1140             x == (client->frame->area.x + client->frame->size.left -
1141                   (gint)client->border_width) &&
1142             y != client->area.y &&
1143             y == (client->frame->area.y + client->frame->size.top -
1144                   (gint)client->border_width) &&
1145             w == client->area.width &&
1146             h == client->area.height)
1147         {
1148             ob_debug_type(OB_DEBUG_APP_BUGS,
1149                           "Application %s is trying to move via "
1150                           "ConfigureRequest to it's root window position "
1151                           "but it is not using StaticGravity\n",
1152                           client->title);
1153             /* don't move it */
1154             x = client->area.x;
1155             y = client->area.y;
1156
1157             /* they still requested a move, so don't change whether a
1158                notify is sent or not */
1159         }
1160
1161         {
1162             gint lw,lh;
1163             gulong ignore_start;
1164
1165             client_try_configure(client, &x, &y, &w, &h, &lw, &lh, FALSE);
1166
1167             /* if x was not given, then use gravity to figure out the new
1168                x.  the reference point should not be moved */
1169             if ((e->xconfigurerequest.value_mask & CWWidth &&
1170                  !(e->xconfigurerequest.value_mask & CWX)))
1171                 client_gravity_resize_w(client, &x, client->area.width, w);
1172             /* if y was not given, then use gravity to figure out the new
1173                y.  the reference point should not be moved */
1174             if ((e->xconfigurerequest.value_mask & CWHeight &&
1175                  !(e->xconfigurerequest.value_mask & CWY)))
1176                 client_gravity_resize_h(client, &y, client->area.height,h);
1177
1178             client_find_onscreen(client, &x, &y, w, h, FALSE);
1179
1180             ob_debug("Granting ConfigureRequest x %d y %d w %d h %d\n",
1181                      x, y, w, h);
1182             ignore_start = event_start_ignore_all_enters();
1183             client_configure(client, x, y, w, h, FALSE, TRUE);
1184             event_end_ignore_all_enters(ignore_start);
1185         }
1186         break;
1187     }
1188     case UnmapNotify:
1189         if (client->ignore_unmaps) {
1190             client->ignore_unmaps--;
1191             break;
1192         }
1193         ob_debug("UnmapNotify for window 0x%x eventwin 0x%x sendevent %d "
1194                  "ignores left %d\n",
1195                  client->window, e->xunmap.event, e->xunmap.from_configure,
1196                  client->ignore_unmaps);
1197         client_unmanage(client);
1198         break;
1199     case DestroyNotify:
1200         ob_debug("DestroyNotify for window 0x%x\n", client->window);
1201         client_unmanage(client);
1202         break;
1203     case ReparentNotify:
1204         /* this is when the client is first taken captive in the frame */
1205         if (e->xreparent.parent == client->frame->window) break;
1206
1207         /*
1208           This event is quite rare and is usually handled in unmapHandler.
1209           However, if the window is unmapped when the reparent event occurs,
1210           the window manager never sees it because an unmap event is not sent
1211           to an already unmapped window.
1212         */
1213
1214         /* we don't want the reparent event, put it back on the stack for the
1215            X server to deal with after we unmanage the window */
1216         XPutBackEvent(ob_display, e);
1217      
1218         ob_debug("ReparentNotify for window 0x%x\n", client->window);
1219         client_unmanage(client);
1220         break;
1221     case MapRequest:
1222         ob_debug("MapRequest for 0x%lx\n", client->window);
1223         if (!client->iconic) break; /* this normally doesn't happen, but if it
1224                                        does, we don't want it!
1225                                        it can happen now when the window is on
1226                                        another desktop, but we still don't
1227                                        want it! */
1228         client_activate(client, FALSE, TRUE);
1229         break;
1230     case ClientMessage:
1231         /* validate cuz we query stuff off the client here */
1232         if (!client_validate(client)) break;
1233
1234         if (e->xclient.format != 32) return;
1235
1236         msgtype = e->xclient.message_type;
1237         if (msgtype == prop_atoms.wm_change_state) {
1238             /* compress changes into a single change */
1239             while (XCheckTypedWindowEvent(ob_display, client->window,
1240                                           e->type, &ce)) {
1241                 /* XXX: it would be nice to compress ALL messages of a
1242                    type, not just messages in a row without other
1243                    message types between. */
1244                 if (ce.xclient.message_type != msgtype) {
1245                     XPutBackEvent(ob_display, &ce);
1246                     break;
1247                 }
1248                 e->xclient = ce.xclient;
1249             }
1250             client_set_wm_state(client, e->xclient.data.l[0]);
1251         } else if (msgtype == prop_atoms.net_wm_desktop) {
1252             /* compress changes into a single change */
1253             while (XCheckTypedWindowEvent(ob_display, client->window,
1254                                           e->type, &ce)) {
1255                 /* XXX: it would be nice to compress ALL messages of a
1256                    type, not just messages in a row without other
1257                    message types between. */
1258                 if (ce.xclient.message_type != msgtype) {
1259                     XPutBackEvent(ob_display, &ce);
1260                     break;
1261                 }
1262                 e->xclient = ce.xclient;
1263             }
1264             if ((unsigned)e->xclient.data.l[0] < screen_num_desktops ||
1265                 (unsigned)e->xclient.data.l[0] == DESKTOP_ALL)
1266                 client_set_desktop(client, (unsigned)e->xclient.data.l[0],
1267                                    FALSE);
1268         } else if (msgtype == prop_atoms.net_wm_state) {
1269             gulong ignore_start;
1270
1271             /* can't compress these */
1272             ob_debug("net_wm_state %s %ld %ld for 0x%lx\n",
1273                      (e->xclient.data.l[0] == 0 ? "Remove" :
1274                       e->xclient.data.l[0] == 1 ? "Add" :
1275                       e->xclient.data.l[0] == 2 ? "Toggle" : "INVALID"),
1276                      e->xclient.data.l[1], e->xclient.data.l[2],
1277                      client->window);
1278
1279             /* ignore enter events caused by these like ob actions do */
1280             if (!config_focus_under_mouse)
1281                 ignore_start = event_start_ignore_all_enters();
1282             client_set_state(client, e->xclient.data.l[0],
1283                              e->xclient.data.l[1], e->xclient.data.l[2]);
1284             if (!config_focus_under_mouse)
1285                 event_end_ignore_all_enters(ignore_start);
1286         } else if (msgtype == prop_atoms.net_close_window) {
1287             ob_debug("net_close_window for 0x%lx\n", client->window);
1288             client_close(client);
1289         } else if (msgtype == prop_atoms.net_active_window) {
1290             ob_debug("net_active_window for 0x%lx source=%s\n",
1291                      client->window,
1292                      (e->xclient.data.l[0] == 0 ? "unknown" :
1293                       (e->xclient.data.l[0] == 1 ? "application" :
1294                        (e->xclient.data.l[0] == 2 ? "user" : "INVALID"))));
1295             /* XXX make use of data.l[2] !? */
1296             if (e->xclient.data.l[0] == 1 || e->xclient.data.l[0] == 2) {
1297                 event_curtime = e->xclient.data.l[1];
1298                 if (event_curtime == 0)
1299                     ob_debug_type(OB_DEBUG_APP_BUGS,
1300                                   "_NET_ACTIVE_WINDOW message for window %s is"
1301                                   " missing a timestamp\n", client->title);
1302             } else
1303                 ob_debug_type(OB_DEBUG_APP_BUGS,
1304                               "_NET_ACTIVE_WINDOW message for window %s is "
1305                               "missing source indication\n");
1306             client_activate(client, FALSE,
1307                             (e->xclient.data.l[0] == 0 ||
1308                              e->xclient.data.l[0] == 2));
1309         } else if (msgtype == prop_atoms.net_wm_moveresize) {
1310             ob_debug("net_wm_moveresize for 0x%lx direction %d\n",
1311                      client->window, e->xclient.data.l[2]);
1312             if ((Atom)e->xclient.data.l[2] ==
1313                 prop_atoms.net_wm_moveresize_size_topleft ||
1314                 (Atom)e->xclient.data.l[2] ==
1315                 prop_atoms.net_wm_moveresize_size_top ||
1316                 (Atom)e->xclient.data.l[2] ==
1317                 prop_atoms.net_wm_moveresize_size_topright ||
1318                 (Atom)e->xclient.data.l[2] ==
1319                 prop_atoms.net_wm_moveresize_size_right ||
1320                 (Atom)e->xclient.data.l[2] ==
1321                 prop_atoms.net_wm_moveresize_size_right ||
1322                 (Atom)e->xclient.data.l[2] ==
1323                 prop_atoms.net_wm_moveresize_size_bottomright ||
1324                 (Atom)e->xclient.data.l[2] ==
1325                 prop_atoms.net_wm_moveresize_size_bottom ||
1326                 (Atom)e->xclient.data.l[2] ==
1327                 prop_atoms.net_wm_moveresize_size_bottomleft ||
1328                 (Atom)e->xclient.data.l[2] ==
1329                 prop_atoms.net_wm_moveresize_size_left ||
1330                 (Atom)e->xclient.data.l[2] ==
1331                 prop_atoms.net_wm_moveresize_move ||
1332                 (Atom)e->xclient.data.l[2] ==
1333                 prop_atoms.net_wm_moveresize_size_keyboard ||
1334                 (Atom)e->xclient.data.l[2] ==
1335                 prop_atoms.net_wm_moveresize_move_keyboard) {
1336
1337                 moveresize_start(client, e->xclient.data.l[0],
1338                                  e->xclient.data.l[1], e->xclient.data.l[3],
1339                                  e->xclient.data.l[2]);
1340             }
1341             else if ((Atom)e->xclient.data.l[2] ==
1342                      prop_atoms.net_wm_moveresize_cancel)
1343                 moveresize_end(TRUE);
1344         } else if (msgtype == prop_atoms.net_moveresize_window) {
1345             gint ograv, x, y, w, h;
1346             gulong ignore_start;
1347
1348             ograv = client->gravity;
1349
1350             if (e->xclient.data.l[0] & 0xff)
1351                 client->gravity = e->xclient.data.l[0] & 0xff;
1352
1353             if (e->xclient.data.l[0] & 1 << 8)
1354                 x = e->xclient.data.l[1];
1355             else
1356                 x = client->area.x;
1357             if (e->xclient.data.l[0] & 1 << 9)
1358                 y = e->xclient.data.l[2];
1359             else
1360                 y = client->area.y;
1361
1362             if (e->xclient.data.l[0] & 1 << 10) {
1363                 w = e->xclient.data.l[3];
1364
1365                 /* if x was not given, then use gravity to figure out the new
1366                    x.  the reference point should not be moved */
1367                 if (!(e->xclient.data.l[0] & 1 << 8))
1368                     client_gravity_resize_w(client, &x, client->area.width, w);
1369             }
1370             else
1371                 w = client->area.width;
1372
1373             if (e->xclient.data.l[0] & 1 << 11) {
1374                 h = e->xclient.data.l[4];
1375
1376                 /* if y was not given, then use gravity to figure out the new
1377                    y.  the reference point should not be moved */
1378                 if (!(e->xclient.data.l[0] & 1 << 9))
1379                     client_gravity_resize_h(client, &y, client->area.height,h);
1380             }
1381             else
1382                 h = client->area.height;
1383
1384             ob_debug("MOVERESIZE x %d %d y %d %d (gravity %d)\n",
1385                      e->xclient.data.l[0] & 1 << 8, x,
1386                      e->xclient.data.l[0] & 1 << 9, y,
1387                      client->gravity);
1388
1389             client_find_onscreen(client, &x, &y, w, h, FALSE);
1390
1391             /* ignore enter events caused by these like ob actions do */
1392             ignore_start = event_start_ignore_all_enters();
1393             client_configure(client, x, y, w, h, FALSE, TRUE);
1394             event_end_ignore_all_enters(ignore_start);
1395
1396             client->gravity = ograv;
1397         } else if (msgtype == prop_atoms.net_restack_window) {
1398             if (e->xclient.data.l[0] != 2) {
1399                 ob_debug_type(OB_DEBUG_APP_BUGS,
1400                               "_NET_RESTACK_WINDOW sent for window %s with "
1401                               "invalid source indication %ld\n",
1402                               client->title, e->xclient.data.l[0]);
1403             } else {
1404                 ObClient *sibling = NULL;
1405                 if (e->xclient.data.l[1]) {
1406                     ObWindow *win = g_hash_table_lookup
1407                         (window_map, &e->xclient.data.l[1]);
1408                     if (WINDOW_IS_CLIENT(win) &&
1409                         WINDOW_AS_CLIENT(win) != client)
1410                     {
1411                         sibling = WINDOW_AS_CLIENT(win);
1412                     }
1413                     if (sibling == NULL)
1414                         ob_debug_type(OB_DEBUG_APP_BUGS,
1415                                       "_NET_RESTACK_WINDOW sent for window %s "
1416                                       "with invalid sibling 0x%x\n",
1417                                  client->title, e->xclient.data.l[1]);
1418                 }
1419                 if (e->xclient.data.l[2] == Below ||
1420                     e->xclient.data.l[2] == BottomIf ||
1421                     e->xclient.data.l[2] == Above ||
1422                     e->xclient.data.l[2] == TopIf ||
1423                     e->xclient.data.l[2] == Opposite)
1424                 {
1425                     gulong ignore_start;
1426
1427                     if (!config_focus_under_mouse)
1428                         ignore_start = event_start_ignore_all_enters();
1429                     /* just raise, don't activate */
1430                     stacking_restack_request(client, sibling,
1431                                              e->xclient.data.l[2], FALSE);
1432                     if (!config_focus_under_mouse)
1433                         event_end_ignore_all_enters(ignore_start);
1434
1435                     /* send a synthetic ConfigureNotify, cuz this is supposed
1436                        to be like a ConfigureRequest. */
1437                     client_reconfigure(client);
1438                 } else
1439                     ob_debug_type(OB_DEBUG_APP_BUGS,
1440                                   "_NET_RESTACK_WINDOW sent for window %s "
1441                                   "with invalid detail %d\n",
1442                                   client->title, e->xclient.data.l[2]);
1443             }
1444         }
1445         break;
1446     case PropertyNotify:
1447         /* validate cuz we query stuff off the client here */
1448         if (!client_validate(client)) break;
1449   
1450         /* compress changes to a single property into a single change */
1451         while (XCheckTypedWindowEvent(ob_display, client->window,
1452                                       e->type, &ce)) {
1453             Atom a, b;
1454
1455             /* XXX: it would be nice to compress ALL changes to a property,
1456                not just changes in a row without other props between. */
1457
1458             a = ce.xproperty.atom;
1459             b = e->xproperty.atom;
1460
1461             if (a == b)
1462                 continue;
1463             if ((a == prop_atoms.net_wm_name ||
1464                  a == prop_atoms.wm_name ||
1465                  a == prop_atoms.net_wm_icon_name ||
1466                  a == prop_atoms.wm_icon_name)
1467                 &&
1468                 (b == prop_atoms.net_wm_name ||
1469                  b == prop_atoms.wm_name ||
1470                  b == prop_atoms.net_wm_icon_name ||
1471                  b == prop_atoms.wm_icon_name)) {
1472                 continue;
1473             }
1474             if (a == prop_atoms.net_wm_icon &&
1475                 b == prop_atoms.net_wm_icon)
1476                 continue;
1477
1478             XPutBackEvent(ob_display, &ce);
1479             break;
1480         }
1481
1482         msgtype = e->xproperty.atom;
1483         if (msgtype == XA_WM_NORMAL_HINTS) {
1484             gint x, y, w, h, lw, lh;
1485
1486             ob_debug("Update NORMAL hints\n");
1487             client_update_normal_hints(client);
1488             /* normal hints can make a window non-resizable */
1489             client_setup_decor_and_functions(client, FALSE);
1490
1491             /* make sure the client's sizes are within its bounds */
1492             RECT_TO_DIMS(client->area, x, y, w, h);
1493             client_try_configure(client, &x, &y, &w, &h, &lw, &lh, FALSE);
1494             if (!RECT_EQUAL_DIMS(client->area, x, y, w, h)) {
1495                 gulong ignore_start;
1496
1497                 ob_debug("Configuring client x %d y %d w %d h %d\n",
1498                          x, y, w, h);
1499                 ignore_start = event_start_ignore_all_enters();
1500                 client_configure(client, x, y, w, h, FALSE, TRUE);
1501                 event_end_ignore_all_enters(ignore_start);
1502             }
1503         } else if (msgtype == XA_WM_HINTS) {
1504             client_update_wmhints(client);
1505         } else if (msgtype == XA_WM_TRANSIENT_FOR) {
1506             client_update_transient_for(client);
1507             client_get_type_and_transientness(client);
1508             /* type may have changed, so update the layer */
1509             client_calc_layer(client);
1510             client_setup_decor_and_functions(client, TRUE);
1511         } else if (msgtype == prop_atoms.net_wm_name ||
1512                    msgtype == prop_atoms.wm_name ||
1513                    msgtype == prop_atoms.net_wm_icon_name ||
1514                    msgtype == prop_atoms.wm_icon_name) {
1515             client_update_title(client);
1516         } else if (msgtype == prop_atoms.wm_protocols) {
1517             client_update_protocols(client);
1518             client_setup_decor_and_functions(client, TRUE);
1519         }
1520         else if (msgtype == prop_atoms.net_wm_strut) {
1521             client_update_strut(client);
1522         }
1523         else if (msgtype == prop_atoms.net_wm_strut_partial) {
1524             client_update_strut(client);
1525         }
1526         else if (msgtype == prop_atoms.net_wm_icon) {
1527             client_update_icons(client);
1528         }
1529         else if (msgtype == prop_atoms.net_wm_icon_geometry) {
1530             client_update_icon_geometry(client);
1531         }
1532         else if (msgtype == prop_atoms.net_wm_user_time) {
1533             client_update_user_time(client);
1534         }
1535         else if (msgtype == prop_atoms.net_wm_user_time_window) {
1536             client_update_user_time_window(client);
1537         }
1538 #ifdef SYNC
1539         else if (msgtype == prop_atoms.net_wm_sync_request_counter) {
1540             client_update_sync_request_counter(client);
1541         }
1542 #endif
1543         break;
1544     case ColormapNotify:
1545         client_update_colormap(client, e->xcolormap.colormap);
1546         break;
1547     default:
1548         ;
1549 #ifdef SHAPE
1550         if (extensions_shape && e->type == extensions_shape_event_basep) {
1551             client->shaped = ((XShapeEvent*)e)->shaped;
1552             frame_adjust_shape(client->frame);
1553         }
1554 #endif
1555     }
1556 }
1557
1558 static void event_handle_dock(ObDock *s, XEvent *e)
1559 {
1560     switch (e->type) {
1561     case ButtonPress:
1562         if (e->xbutton.button == 1)
1563             stacking_raise(DOCK_AS_WINDOW(s));
1564         else if (e->xbutton.button == 2)
1565             stacking_lower(DOCK_AS_WINDOW(s));
1566         break;
1567     case EnterNotify:
1568         dock_hide(FALSE);
1569         break;
1570     case LeaveNotify:
1571         /* don't hide when moving into a dock app */
1572         if (e->xcrossing.detail != NotifyInferior)
1573             dock_hide(TRUE);
1574         break;
1575     }
1576 }
1577
1578 static void event_handle_dockapp(ObDockApp *app, XEvent *e)
1579 {
1580     switch (e->type) {
1581     case MotionNotify:
1582         dock_app_drag(app, &e->xmotion);
1583         break;
1584     case UnmapNotify:
1585         if (app->ignore_unmaps) {
1586             app->ignore_unmaps--;
1587             break;
1588         }
1589         dock_remove(app, TRUE);
1590         break;
1591     case DestroyNotify:
1592         dock_remove(app, FALSE);
1593         break;
1594     case ReparentNotify:
1595         dock_remove(app, FALSE);
1596         break;
1597     case ConfigureNotify:
1598         dock_app_configure(app, e->xconfigure.width, e->xconfigure.height);
1599         break;
1600     }
1601 }
1602
1603 static ObMenuFrame* find_active_menu()
1604 {
1605     GList *it;
1606     ObMenuFrame *ret = NULL;
1607
1608     for (it = menu_frame_visible; it; it = g_list_next(it)) {
1609         ret = it->data;
1610         if (ret->selected)
1611             break;
1612         ret = NULL;
1613     }
1614     return ret;
1615 }
1616
1617 static ObMenuFrame* find_active_or_last_menu()
1618 {
1619     ObMenuFrame *ret = NULL;
1620
1621     ret = find_active_menu();
1622     if (!ret && menu_frame_visible)
1623         ret = menu_frame_visible->data;
1624     return ret;
1625 }
1626
1627 static gboolean event_handle_menu_keyboard(XEvent *ev)
1628 {
1629     guint keycode, state;
1630     gunichar unikey;
1631     ObMenuFrame *frame;
1632     gboolean ret = TRUE;
1633
1634     keycode = ev->xkey.keycode;
1635     state = ev->xkey.state;
1636     unikey = translate_unichar(keycode);
1637
1638     frame = find_active_or_last_menu();
1639     if (frame == NULL)
1640         ret = FALSE;
1641
1642     else if (keycode == ob_keycode(OB_KEY_ESCAPE) && state == 0)
1643         menu_frame_hide_all();
1644
1645     else if (keycode == ob_keycode(OB_KEY_RETURN) && (state == 0 ||
1646                                                       state == ControlMask))
1647     {
1648         /* Enter runs the active item or goes into the submenu.
1649            Control-Enter runs it without closing the menu. */
1650         if (frame->child)
1651             menu_frame_select_next(frame->child);
1652         else if (frame->selected)
1653             menu_entry_frame_execute(frame->selected, state, ev->xkey.time);
1654     }
1655
1656     else if (keycode == ob_keycode(OB_KEY_LEFT) && ev->xkey.state == 0) {
1657         /* Left goes to the parent menu */
1658         menu_frame_select(frame, NULL, TRUE);
1659     }
1660
1661     else if (keycode == ob_keycode(OB_KEY_RIGHT) && ev->xkey.state == 0) {
1662         /* Right goes to the selected submenu */
1663         if (frame->child) menu_frame_select_next(frame->child);
1664     }
1665
1666     else if (keycode == ob_keycode(OB_KEY_UP) && state == 0) {
1667         menu_frame_select_previous(frame);
1668     }
1669
1670     else if (keycode == ob_keycode(OB_KEY_DOWN) && state == 0) {
1671         menu_frame_select_next(frame);
1672     }
1673
1674     /* keyboard accelerator shortcuts. (allow controlmask) */
1675     else if ((ev->xkey.state & ~ControlMask) == 0 &&
1676              /* was it a valid key? */
1677              unikey != 0 &&
1678              /* don't bother if the menu is empty. */
1679              frame->entries)
1680     {
1681         GList *start;
1682         GList *it;
1683         ObMenuEntryFrame *found = NULL;
1684         guint num_found = 0;
1685
1686         /* start after the selected one */
1687         start = frame->entries;
1688         if (frame->selected) {
1689             for (it = start; frame->selected != it->data; it = g_list_next(it))
1690                 g_assert(it != NULL); /* nothing was selected? */
1691             /* next with wraparound */
1692             start = g_list_next(it);
1693             if (start == NULL) start = frame->entries;
1694         }
1695
1696         it = start;
1697         do {
1698             ObMenuEntryFrame *e = it->data;
1699             gunichar entrykey = 0;
1700
1701             if (e->entry->type == OB_MENU_ENTRY_TYPE_NORMAL)
1702                 entrykey = e->entry->data.normal.shortcut;
1703             else if (e->entry->type == OB_MENU_ENTRY_TYPE_SUBMENU)
1704                 entrykey = e->entry->data.submenu.submenu->shortcut;
1705
1706             if (unikey == entrykey) {
1707                 if (found == NULL) found = e;
1708                 ++num_found;
1709             }
1710
1711             /* next with wraparound */
1712             it = g_list_next(it);
1713             if (it == NULL) it = frame->entries;
1714         } while (it != start);
1715
1716         if (found) {
1717             if (found->entry->type == OB_MENU_ENTRY_TYPE_NORMAL &&
1718                 num_found == 1)
1719             {
1720                 menu_frame_select(frame, found, TRUE);
1721                 usleep(50000); /* highlight the item for a short bit so the
1722                                   user can see what happened */
1723                 menu_entry_frame_execute(found, state, ev->xkey.time);
1724             } else {
1725                 menu_frame_select(frame, found, TRUE);
1726                 if (num_found == 1)
1727                     menu_frame_select_next(frame->child);
1728             }
1729         } else
1730             ret = FALSE;
1731     }
1732     else
1733         ret = FALSE;
1734
1735     return ret;
1736 }
1737
1738 static gboolean event_handle_menu(XEvent *ev)
1739 {
1740     ObMenuFrame *f;
1741     ObMenuEntryFrame *e;
1742     gboolean ret = TRUE;
1743
1744     switch (ev->type) {
1745     case ButtonRelease:
1746         if (menu_hide_delay_reached() &&
1747             (ev->xbutton.button < 4 || ev->xbutton.button > 5))
1748         {
1749             if ((e = menu_entry_frame_under(ev->xbutton.x_root,
1750                                             ev->xbutton.y_root)))
1751             {
1752                 menu_frame_select(e->frame, e, TRUE);
1753                 menu_entry_frame_execute(e, ev->xbutton.state,
1754                                          ev->xbutton.time);
1755             }
1756             else
1757                 menu_frame_hide_all();
1758         }
1759         break;
1760     case EnterNotify:
1761         if ((e = g_hash_table_lookup(menu_frame_map, &ev->xcrossing.window))) {
1762             if (e->ignore_enters)
1763                 --e->ignore_enters;
1764             else if (!(f = find_active_menu()) ||
1765                      f == e->frame ||
1766                      f->parent == e->frame ||
1767                      f->child == e->frame)
1768                 menu_frame_select(e->frame, e, FALSE);
1769         }
1770         break;
1771     case LeaveNotify:
1772         /*ignore leaves when we're already in the window */
1773         if (ev->xcrossing.detail == NotifyInferior)
1774             break;
1775
1776         if ((e = g_hash_table_lookup(menu_frame_map, &ev->xcrossing.window)) &&
1777             (f = find_active_menu()) && f->selected == e &&
1778             e->entry->type != OB_MENU_ENTRY_TYPE_SUBMENU)
1779         {
1780             menu_frame_select(e->frame, NULL, FALSE);
1781         }
1782         break;
1783     case MotionNotify:   
1784         if ((e = menu_entry_frame_under(ev->xmotion.x_root,   
1785                                         ev->xmotion.y_root)))
1786             if (!(f = find_active_menu()) ||
1787                 f == e->frame ||
1788                 f->parent == e->frame ||
1789                 f->child == e->frame)
1790                 menu_frame_select(e->frame, e, FALSE);
1791         break;
1792     case KeyPress:
1793         ret = event_handle_menu_keyboard(ev);
1794         break;
1795     }
1796     return ret;
1797 }
1798
1799 static void event_handle_user_input(ObClient *client, XEvent *e)
1800 {
1801     g_assert(e->type == ButtonPress || e->type == ButtonRelease ||
1802              e->type == MotionNotify || e->type == KeyPress ||
1803              e->type == KeyRelease);
1804
1805     if (menu_frame_visible) {
1806         if (event_handle_menu(e))
1807             /* don't use the event if the menu used it, but if the menu
1808                didn't use it and it's a keypress that is bound, it will
1809                close the menu and be used */
1810             return;
1811     }
1812
1813     /* if the keyboard interactive action uses the event then dont
1814        use it for bindings. likewise is moveresize uses the event. */
1815     if (!keyboard_process_interactive_grab(e, &client) &&
1816         !(moveresize_in_progress && moveresize_event(e)))
1817     {
1818         if (moveresize_in_progress)
1819             /* make further actions work on the client being
1820                moved/resized */
1821             client = moveresize_client;
1822
1823         if (e->type == ButtonPress ||
1824             e->type == ButtonRelease ||
1825             e->type == MotionNotify)
1826         {
1827             /* the frame may not be "visible" but they can still click on it
1828                in the case where it is animating before disappearing */
1829             if (!client || !frame_iconify_animating(client->frame))
1830                 mouse_event(client, e);
1831         } else if (e->type == KeyPress) {
1832             keyboard_event((focus_cycle_target ? focus_cycle_target :
1833                             (client ? client : focus_client)), e);
1834         }
1835     }
1836 }
1837
1838 static void focus_delay_dest(gpointer data)
1839 {
1840     g_free(data);
1841 }
1842
1843 static gboolean focus_delay_cmp(gconstpointer d1, gconstpointer d2)
1844 {
1845     const ObFocusDelayData *f1 = d1;
1846     return f1->client == d2;
1847 }
1848
1849 static gboolean focus_delay_func(gpointer data)
1850 {
1851     ObFocusDelayData *d = data;
1852     Time old = event_curtime;
1853
1854     event_curtime = d->time;
1855     if (focus_client != d->client) {
1856         if (client_focus(d->client) && config_focus_raise)
1857             stacking_raise(CLIENT_AS_WINDOW(d->client));
1858     }
1859     event_curtime = old;
1860     return FALSE; /* no repeat */
1861 }
1862
1863 static void focus_delay_client_dest(ObClient *client, gpointer data)
1864 {
1865     ob_main_loop_timeout_remove_data(ob_main_loop, focus_delay_func,
1866                                      client, FALSE);
1867 }
1868
1869 void event_halt_focus_delay()
1870 {
1871     ob_main_loop_timeout_remove(ob_main_loop, focus_delay_func);
1872 }
1873
1874 gulong event_start_ignore_all_enters()
1875 {
1876     XSync(ob_display, FALSE);
1877     return LastKnownRequestProcessed(ob_display);
1878 }
1879
1880 void event_end_ignore_all_enters(gulong start)
1881 {
1882     ObSerialRange *r;
1883
1884     g_assert(start != 0);
1885     XSync(ob_display, FALSE);
1886
1887     r = g_new(ObSerialRange, 1);
1888     r->start = start;
1889     r->end = LastKnownRequestProcessed(ob_display);
1890     ignore_serials = g_slist_prepend(ignore_serials, r);
1891
1892     /* increment the serial so we don't ignore events we weren't meant to */
1893     XSync(ob_display, FALSE);
1894 }
1895
1896 static gboolean is_enter_focus_event_ignored(XEvent *e)
1897 {
1898     GSList *it, *next;
1899
1900     g_assert(e->type == EnterNotify &&
1901              !(e->xcrossing.mode == NotifyGrab ||
1902                e->xcrossing.mode == NotifyUngrab ||
1903                e->xcrossing.detail == NotifyInferior));
1904
1905     for (it = ignore_serials; it; it = next) {
1906         ObSerialRange *r = it->data;
1907
1908         next = g_slist_next(it);
1909
1910         if ((glong)(e->xany.serial - r->end) > 0) {
1911             /* past the end */
1912             ignore_serials = g_slist_delete_link(ignore_serials, it);
1913             g_free(r);
1914         }
1915         else if ((glong)(e->xany.serial - r->start) >= 0)
1916             return TRUE;
1917     }
1918     return FALSE;
1919 }
1920
1921 void event_cancel_all_key_grabs()
1922 {
1923     if (keyboard_interactively_grabbed())
1924         keyboard_interactive_cancel();
1925     else if (menu_frame_visible)
1926         menu_frame_hide_all();
1927     else if (grab_on_keyboard())
1928         ungrab_keyboard();
1929     else
1930         /* If we don't have the keyboard grabbed, then ungrab it with
1931            XUngrabKeyboard, so that there is not a passive grab left
1932            on from the KeyPress. If the grab is left on, and focus
1933            moves during that time, it will be NotifyWhileGrabbed, and
1934            applications like to ignore those! */
1935         if (!keyboard_interactively_grabbed())
1936             XUngrabKeyboard(ob_display, CurrentTime);
1937
1938 }
1939
1940 gboolean event_time_after(Time t1, Time t2)
1941 {
1942     g_assert(t1 != CurrentTime);
1943     g_assert(t2 != CurrentTime);
1944
1945     /*
1946       Timestamp values wrap around (after about 49.7 days). The server, given
1947       its current time is represented by timestamp T, always interprets
1948       timestamps from clients by treating half of the timestamp space as being
1949       later in time than T.
1950       - http://tronche.com/gui/x/xlib/input/pointer-grabbing.html
1951     */
1952
1953     /* TIME_HALF is half of the number space of a Time type variable */
1954 #define TIME_HALF (Time)(1 << (sizeof(Time)*8-1))
1955
1956     if (t2 >= TIME_HALF)
1957         /* t2 is in the second half so t1 might wrap around and be smaller than
1958            t2 */
1959         return t1 >= t2 || t1 < (t2 + TIME_HALF);
1960     else
1961         /* t2 is in the first half so t1 has to come after it */
1962         return t1 >= t2 && t1 < (t2 + TIME_HALF);
1963 }