use keypress for navigating the menu but use keyrelease for running things
[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 "actions.h"
26 #include "client.h"
27 #include "xerror.h"
28 #include "prop.h"
29 #include "config.h"
30 #include "screen.h"
31 #include "frame.h"
32 #include "grab.h"
33 #include "menu.h"
34 #include "menuframe.h"
35 #include "keyboard.h"
36 #include "modkeys.h"
37 #include "propwin.h"
38 #include "mouse.h"
39 #include "mainloop.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             !grab_on_keyboard())
813         {
814             /* use where the press occured */
815             con = frame_context(client, e->xbutton.window, px, py);
816             con = mouse_button_frame_context(con, e->xbutton.button,
817                                              e->xbutton.state);
818
819             if (e->type == ButtonRelease && e->xbutton.button == pb)
820                 pb = 0, px = py = -1;
821
822             switch (con) {
823             case OB_FRAME_CONTEXT_MAXIMIZE:
824                 client->frame->max_press = (e->type == ButtonPress);
825                 frame_adjust_state(client->frame);
826                 break;
827             case OB_FRAME_CONTEXT_CLOSE:
828                 client->frame->close_press = (e->type == ButtonPress);
829                 frame_adjust_state(client->frame);
830                 break;
831             case OB_FRAME_CONTEXT_ICONIFY:
832                 client->frame->iconify_press = (e->type == ButtonPress);
833                 frame_adjust_state(client->frame);
834                 break;
835             case OB_FRAME_CONTEXT_ALLDESKTOPS:
836                 client->frame->desk_press = (e->type == ButtonPress);
837                 frame_adjust_state(client->frame);
838                 break;
839             case OB_FRAME_CONTEXT_SHADE:
840                 client->frame->shade_press = (e->type == ButtonPress);
841                 frame_adjust_state(client->frame);
842                 break;
843             default:
844                 /* nothing changes with clicks for any other contexts */
845                 break;
846             }
847         }
848         break;
849     case MotionNotify:
850         /* when there is a grab on the pointer, we won't get enter/leave
851            notifies, but we still get motion events */
852         if (grab_on_pointer()) break;
853
854         con = frame_context(client, e->xmotion.window,
855                             e->xmotion.x, e->xmotion.y);
856         switch (con) {
857         case OB_FRAME_CONTEXT_TITLEBAR:
858         case OB_FRAME_CONTEXT_TLCORNER:
859         case OB_FRAME_CONTEXT_TRCORNER:
860             /* we've left the button area inside the titlebar */
861             if (client->frame->max_hover || client->frame->desk_hover ||
862                 client->frame->shade_hover || client->frame->iconify_hover ||
863                 client->frame->close_hover)
864             {
865                 client->frame->max_hover = FALSE;
866                 client->frame->desk_hover = FALSE;
867                 client->frame->shade_hover = FALSE;
868                 client->frame->iconify_hover = FALSE;
869                 client->frame->close_hover = FALSE;
870                 frame_adjust_state(client->frame);
871             }
872             break;
873         case OB_FRAME_CONTEXT_MAXIMIZE:
874             if (!client->frame->max_hover) {
875                 client->frame->max_hover = TRUE;
876                 frame_adjust_state(client->frame);
877             }
878             break;
879         case OB_FRAME_CONTEXT_ALLDESKTOPS:
880             if (!client->frame->desk_hover) {
881                 client->frame->desk_hover = TRUE;
882                 frame_adjust_state(client->frame);
883             }
884             break;
885         case OB_FRAME_CONTEXT_SHADE:
886             if (!client->frame->shade_hover) {
887                 client->frame->shade_hover = TRUE;
888                 frame_adjust_state(client->frame);
889             }
890             break;
891         case OB_FRAME_CONTEXT_ICONIFY:
892             if (!client->frame->iconify_hover) {
893                 client->frame->iconify_hover = TRUE;
894                 frame_adjust_state(client->frame);
895             }
896             break;
897         case OB_FRAME_CONTEXT_CLOSE:
898             if (!client->frame->close_hover) {
899                 client->frame->close_hover = TRUE;
900                 frame_adjust_state(client->frame);
901             }
902             break;
903         default:
904             break;
905         }
906         break;
907     case LeaveNotify:
908         con = frame_context(client, e->xcrossing.window,
909                             e->xcrossing.x, e->xcrossing.y);
910         switch (con) {
911         case OB_FRAME_CONTEXT_TITLEBAR:
912         case OB_FRAME_CONTEXT_TLCORNER:
913         case OB_FRAME_CONTEXT_TRCORNER:
914             /* we've left the button area inside the titlebar */
915             if (client->frame->max_hover || client->frame->desk_hover ||
916                 client->frame->shade_hover || client->frame->iconify_hover ||
917                 client->frame->close_hover)
918             {
919                 client->frame->max_hover = FALSE;
920                 client->frame->desk_hover = FALSE;
921                 client->frame->shade_hover = FALSE;
922                 client->frame->iconify_hover = FALSE;
923                 client->frame->close_hover = FALSE;
924                 frame_adjust_state(client->frame);
925             }
926             break;
927         case OB_FRAME_CONTEXT_MAXIMIZE:
928             client->frame->max_hover = FALSE;
929             frame_adjust_state(client->frame);
930             break;
931         case OB_FRAME_CONTEXT_ALLDESKTOPS:
932             client->frame->desk_hover = FALSE;
933             frame_adjust_state(client->frame);
934             break;
935         case OB_FRAME_CONTEXT_SHADE:
936             client->frame->shade_hover = FALSE;
937             frame_adjust_state(client->frame);
938             break;
939         case OB_FRAME_CONTEXT_ICONIFY:
940             client->frame->iconify_hover = FALSE;
941             frame_adjust_state(client->frame);
942             break;
943         case OB_FRAME_CONTEXT_CLOSE:
944             client->frame->close_hover = FALSE;
945             frame_adjust_state(client->frame);
946             break;
947         case OB_FRAME_CONTEXT_FRAME:
948             /* When the mouse leaves an animating window, don't use the
949                corresponding enter events. Pretend like the animating window
950                doesn't even exist..! */
951             if (frame_iconify_animating(client->frame))
952                 event_end_ignore_all_enters(event_start_ignore_all_enters());
953
954             ob_debug_type(OB_DEBUG_FOCUS,
955                           "%sNotify mode %d detail %d on %lx\n",
956                           (e->type == EnterNotify ? "Enter" : "Leave"),
957                           e->xcrossing.mode,
958                           e->xcrossing.detail, (client?client->window:0));
959             if (grab_on_keyboard())
960                 break;
961             if (config_focus_follow && config_focus_delay &&
962                 /* leave inferior events can happen when the mouse goes onto
963                    the window's border and then into the window before the
964                    delay is up */
965                 e->xcrossing.detail != NotifyInferior)
966             {
967                 ob_main_loop_timeout_remove_data(ob_main_loop,
968                                                  focus_delay_func,
969                                                  client, FALSE);
970             }
971             break;
972         default:
973             break;
974         }
975         break;
976     case EnterNotify:
977     {
978         con = frame_context(client, e->xcrossing.window,
979                             e->xcrossing.x, e->xcrossing.y);
980         switch (con) {
981         case OB_FRAME_CONTEXT_MAXIMIZE:
982             client->frame->max_hover = TRUE;
983             frame_adjust_state(client->frame);
984             break;
985         case OB_FRAME_CONTEXT_ALLDESKTOPS:
986             client->frame->desk_hover = TRUE;
987             frame_adjust_state(client->frame);
988             break;
989         case OB_FRAME_CONTEXT_SHADE:
990             client->frame->shade_hover = TRUE;
991             frame_adjust_state(client->frame);
992             break;
993         case OB_FRAME_CONTEXT_ICONIFY:
994             client->frame->iconify_hover = TRUE;
995             frame_adjust_state(client->frame);
996             break;
997         case OB_FRAME_CONTEXT_CLOSE:
998             client->frame->close_hover = TRUE;
999             frame_adjust_state(client->frame);
1000             break;
1001         case OB_FRAME_CONTEXT_FRAME:
1002             if (grab_on_keyboard())
1003                 break;
1004             if (e->xcrossing.mode == NotifyGrab ||
1005                 e->xcrossing.mode == NotifyUngrab ||
1006                 /*ignore enters when we're already in the window */
1007                 e->xcrossing.detail == NotifyInferior ||
1008                 is_enter_focus_event_ignored(e))
1009             {
1010                 ob_debug_type(OB_DEBUG_FOCUS,
1011                               "%sNotify mode %d detail %d on %lx IGNORED\n",
1012                               (e->type == EnterNotify ? "Enter" : "Leave"),
1013                               e->xcrossing.mode,
1014                               e->xcrossing.detail, client?client->window:0);
1015             }
1016             else {
1017                 ob_debug_type(OB_DEBUG_FOCUS,
1018                               "%sNotify mode %d detail %d on %lx, "
1019                               "focusing window\n",
1020                               (e->type == EnterNotify ? "Enter" : "Leave"),
1021                               e->xcrossing.mode,
1022                               e->xcrossing.detail, (client?client->window:0));
1023                 if (config_focus_follow)
1024                     event_enter_client(client);
1025             }
1026             break;
1027         default:
1028             break;
1029         }
1030         break;
1031     }
1032     case ConfigureRequest:
1033     {
1034         /* dont compress these unless you're going to watch for property
1035            notifies in between (these can change what the configure would
1036            do to the window).
1037            also you can't compress stacking events
1038         */
1039
1040         gint x, y, w, h;
1041         gboolean move = FALSE;
1042         gboolean resize = FALSE;
1043
1044         /* get the current area */
1045         RECT_TO_DIMS(client->area, x, y, w, h);
1046
1047         ob_debug("ConfigureRequest for \"%s\" desktop %d wmstate %d "
1048                  "visibile %d\n"
1049                  "                     x %d y %d w %d h %d b %d\n",
1050                  client->title,
1051                  screen_desktop, client->wmstate, client->frame->visible,
1052                  x, y, w, h, client->border_width);
1053
1054         if (e->xconfigurerequest.value_mask & CWBorderWidth)
1055             if (client->border_width != e->xconfigurerequest.border_width) {
1056                 client->border_width = e->xconfigurerequest.border_width;
1057
1058                 /* if the border width is changing then that is the same
1059                    as requesting a resize, but we don't actually change
1060                    the client's border, so it will change their root
1061                    coordiantes (since they include the border width) and
1062                    we need to a notify then */
1063                 move = TRUE;
1064             }
1065
1066
1067         if (e->xconfigurerequest.value_mask & CWStackMode) {
1068             ObClient *sibling = NULL;
1069             gulong ignore_start;
1070             gboolean ok = TRUE;
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 (win && WINDOW_IS_CLIENT(win) &&
1078                     WINDOW_AS_CLIENT(win) != client)
1079                 {
1080                     sibling = WINDOW_AS_CLIENT(win);
1081                 }
1082                 else
1083                     /* an invalid sibling was specified so don't restack at
1084                        all, it won't make sense no matter what we do */
1085                     ok = FALSE;
1086             }
1087
1088             if (ok) {
1089                 if (!config_focus_under_mouse)
1090                     ignore_start = event_start_ignore_all_enters();
1091                 stacking_restack_request(client, sibling,
1092                                          e->xconfigurerequest.detail);
1093                 if (!config_focus_under_mouse)
1094                     event_end_ignore_all_enters(ignore_start);
1095             }
1096
1097             /* a stacking change moves the window without resizing */
1098             move = TRUE;
1099         }
1100
1101         if ((e->xconfigurerequest.value_mask & CWX) ||
1102             (e->xconfigurerequest.value_mask & CWY) ||
1103             (e->xconfigurerequest.value_mask & CWWidth) ||
1104             (e->xconfigurerequest.value_mask & CWHeight))
1105         {
1106             if (e->xconfigurerequest.value_mask & CWX) {
1107                 /* don't allow clients to move shaded windows (fvwm does this)
1108                  */
1109                 if (!client->shaded)
1110                     x = e->xconfigurerequest.x;
1111                 move = TRUE;
1112             }
1113             if (e->xconfigurerequest.value_mask & CWY) {
1114                 /* don't allow clients to move shaded windows (fvwm does this)
1115                  */
1116                 if (!client->shaded)
1117                     y = e->xconfigurerequest.y;
1118                 move = TRUE;
1119             }
1120
1121             if (e->xconfigurerequest.value_mask & CWWidth) {
1122                 w = e->xconfigurerequest.width;
1123                 resize = TRUE;
1124             }
1125             if (e->xconfigurerequest.value_mask & CWHeight) {
1126                 h = e->xconfigurerequest.height;
1127                 resize = TRUE;
1128             }
1129         }
1130
1131         ob_debug("ConfigureRequest x(%d) %d y(%d) %d w(%d) %d h(%d) %d "
1132                  "move %d resize %d\n",
1133                  e->xconfigurerequest.value_mask & CWX, x,
1134                  e->xconfigurerequest.value_mask & CWY, y,
1135                  e->xconfigurerequest.value_mask & CWWidth, w,
1136                  e->xconfigurerequest.value_mask & CWHeight, h,
1137                  move, resize);
1138
1139         /* check for broken apps moving to their root position
1140
1141            XXX remove this some day...that would be nice. right now all
1142            kde apps do this when they try activate themselves on another
1143            desktop. eg. open amarok window on desktop 1, switch to desktop
1144            2, click amarok tray icon. it will move by its decoration size.
1145         */
1146         if (x != client->area.x &&
1147             x == (client->frame->area.x + client->frame->size.left -
1148                   (gint)client->border_width) &&
1149             y != client->area.y &&
1150             y == (client->frame->area.y + client->frame->size.top -
1151                   (gint)client->border_width) &&
1152             w == client->area.width &&
1153             h == client->area.height)
1154         {
1155             ob_debug_type(OB_DEBUG_APP_BUGS,
1156                           "Application %s is trying to move via "
1157                           "ConfigureRequest to it's root window position "
1158                           "but it is not using StaticGravity\n",
1159                           client->title);
1160             /* don't move it */
1161             x = client->area.x;
1162             y = client->area.y;
1163
1164             /* they still requested a move, so don't change whether a
1165                notify is sent or not */
1166         }
1167
1168         {
1169             gint lw,lh;
1170
1171             client_try_configure(client, &x, &y, &w, &h, &lw, &lh, FALSE);
1172
1173             /* if x was not given, then use gravity to figure out the new
1174                x.  the reference point should not be moved */
1175             if ((e->xconfigurerequest.value_mask & CWWidth &&
1176                  !(e->xconfigurerequest.value_mask & CWX)))
1177                 client_gravity_resize_w(client, &x, client->area.width, w);
1178             /* if y was not given, then use gravity to figure out the new
1179                y.  the reference point should not be moved */
1180             if ((e->xconfigurerequest.value_mask & CWHeight &&
1181                  !(e->xconfigurerequest.value_mask & CWY)))
1182                 client_gravity_resize_h(client, &y, client->area.height,h);
1183
1184             client_find_onscreen(client, &x, &y, w, h, FALSE);
1185
1186             ob_debug("Granting ConfigureRequest x %d y %d w %d h %d\n",
1187                      x, y, w, h);
1188             client_configure(client, x, y, w, h, FALSE, TRUE, TRUE);
1189         }
1190         break;
1191     }
1192     case UnmapNotify:
1193         if (client->ignore_unmaps) {
1194             client->ignore_unmaps--;
1195             break;
1196         }
1197         ob_debug("UnmapNotify for window 0x%x eventwin 0x%x sendevent %d "
1198                  "ignores left %d\n",
1199                  client->window, e->xunmap.event, e->xunmap.from_configure,
1200                  client->ignore_unmaps);
1201         client_unmanage(client);
1202         break;
1203     case DestroyNotify:
1204         ob_debug("DestroyNotify for window 0x%x\n", client->window);
1205         client_unmanage(client);
1206         break;
1207     case ReparentNotify:
1208         /* this is when the client is first taken captive in the frame */
1209         if (e->xreparent.parent == client->frame->window) break;
1210
1211         /*
1212           This event is quite rare and is usually handled in unmapHandler.
1213           However, if the window is unmapped when the reparent event occurs,
1214           the window manager never sees it because an unmap event is not sent
1215           to an already unmapped window.
1216         */
1217
1218         /* we don't want the reparent event, put it back on the stack for the
1219            X server to deal with after we unmanage the window */
1220         XPutBackEvent(ob_display, e);
1221
1222         ob_debug("ReparentNotify for window 0x%x\n", client->window);
1223         client_unmanage(client);
1224         break;
1225     case MapRequest:
1226         ob_debug("MapRequest for 0x%lx\n", client->window);
1227         if (!client->iconic) break; /* this normally doesn't happen, but if it
1228                                        does, we don't want it!
1229                                        it can happen now when the window is on
1230                                        another desktop, but we still don't
1231                                        want it! */
1232         client_activate(client, FALSE, TRUE, TRUE, TRUE);
1233         break;
1234     case ClientMessage:
1235         /* validate cuz we query stuff off the client here */
1236         if (!client_validate(client)) break;
1237
1238         if (e->xclient.format != 32) return;
1239
1240         msgtype = e->xclient.message_type;
1241         if (msgtype == prop_atoms.wm_change_state) {
1242             /* compress changes into a single change */
1243             while (XCheckTypedWindowEvent(ob_display, client->window,
1244                                           e->type, &ce)) {
1245                 /* XXX: it would be nice to compress ALL messages of a
1246                    type, not just messages in a row without other
1247                    message types between. */
1248                 if (ce.xclient.message_type != msgtype) {
1249                     XPutBackEvent(ob_display, &ce);
1250                     break;
1251                 }
1252                 e->xclient = ce.xclient;
1253             }
1254             client_set_wm_state(client, e->xclient.data.l[0]);
1255         } else if (msgtype == prop_atoms.net_wm_desktop) {
1256             /* compress changes into a single change */
1257             while (XCheckTypedWindowEvent(ob_display, client->window,
1258                                           e->type, &ce)) {
1259                 /* XXX: it would be nice to compress ALL messages of a
1260                    type, not just messages in a row without other
1261                    message types between. */
1262                 if (ce.xclient.message_type != msgtype) {
1263                     XPutBackEvent(ob_display, &ce);
1264                     break;
1265                 }
1266                 e->xclient = ce.xclient;
1267             }
1268             if ((unsigned)e->xclient.data.l[0] < screen_num_desktops ||
1269                 (unsigned)e->xclient.data.l[0] == DESKTOP_ALL)
1270                 client_set_desktop(client, (unsigned)e->xclient.data.l[0],
1271                                    FALSE, FALSE);
1272         } else if (msgtype == prop_atoms.net_wm_state) {
1273             gulong ignore_start;
1274
1275             /* can't compress these */
1276             ob_debug("net_wm_state %s %ld %ld for 0x%lx\n",
1277                      (e->xclient.data.l[0] == 0 ? "Remove" :
1278                       e->xclient.data.l[0] == 1 ? "Add" :
1279                       e->xclient.data.l[0] == 2 ? "Toggle" : "INVALID"),
1280                      e->xclient.data.l[1], e->xclient.data.l[2],
1281                      client->window);
1282
1283             /* ignore enter events caused by these like ob actions do */
1284             if (!config_focus_under_mouse)
1285                 ignore_start = event_start_ignore_all_enters();
1286             client_set_state(client, e->xclient.data.l[0],
1287                              e->xclient.data.l[1], e->xclient.data.l[2]);
1288             if (!config_focus_under_mouse)
1289                 event_end_ignore_all_enters(ignore_start);
1290         } else if (msgtype == prop_atoms.net_close_window) {
1291             ob_debug("net_close_window for 0x%lx\n", client->window);
1292             client_close(client);
1293         } else if (msgtype == prop_atoms.net_active_window) {
1294             ob_debug("net_active_window for 0x%lx source=%s\n",
1295                      client->window,
1296                      (e->xclient.data.l[0] == 0 ? "unknown" :
1297                       (e->xclient.data.l[0] == 1 ? "application" :
1298                        (e->xclient.data.l[0] == 2 ? "user" : "INVALID"))));
1299             /* XXX make use of data.l[2] !? */
1300             if (e->xclient.data.l[0] == 1 || e->xclient.data.l[0] == 2) {
1301                 event_curtime = e->xclient.data.l[1];
1302                 if (event_curtime == 0)
1303                     ob_debug_type(OB_DEBUG_APP_BUGS,
1304                                   "_NET_ACTIVE_WINDOW message for window %s is"
1305                                   " missing a timestamp\n", client->title);
1306             } else
1307                 ob_debug_type(OB_DEBUG_APP_BUGS,
1308                               "_NET_ACTIVE_WINDOW message for window %s is "
1309                               "missing source indication\n");
1310             client_activate(client, FALSE, TRUE, TRUE,
1311                             (e->xclient.data.l[0] == 0 ||
1312                              e->xclient.data.l[0] == 2));
1313         } else if (msgtype == prop_atoms.net_wm_moveresize) {
1314             ob_debug("net_wm_moveresize for 0x%lx direction %d\n",
1315                      client->window, e->xclient.data.l[2]);
1316             if ((Atom)e->xclient.data.l[2] ==
1317                 prop_atoms.net_wm_moveresize_size_topleft ||
1318                 (Atom)e->xclient.data.l[2] ==
1319                 prop_atoms.net_wm_moveresize_size_top ||
1320                 (Atom)e->xclient.data.l[2] ==
1321                 prop_atoms.net_wm_moveresize_size_topright ||
1322                 (Atom)e->xclient.data.l[2] ==
1323                 prop_atoms.net_wm_moveresize_size_right ||
1324                 (Atom)e->xclient.data.l[2] ==
1325                 prop_atoms.net_wm_moveresize_size_right ||
1326                 (Atom)e->xclient.data.l[2] ==
1327                 prop_atoms.net_wm_moveresize_size_bottomright ||
1328                 (Atom)e->xclient.data.l[2] ==
1329                 prop_atoms.net_wm_moveresize_size_bottom ||
1330                 (Atom)e->xclient.data.l[2] ==
1331                 prop_atoms.net_wm_moveresize_size_bottomleft ||
1332                 (Atom)e->xclient.data.l[2] ==
1333                 prop_atoms.net_wm_moveresize_size_left ||
1334                 (Atom)e->xclient.data.l[2] ==
1335                 prop_atoms.net_wm_moveresize_move ||
1336                 (Atom)e->xclient.data.l[2] ==
1337                 prop_atoms.net_wm_moveresize_size_keyboard ||
1338                 (Atom)e->xclient.data.l[2] ==
1339                 prop_atoms.net_wm_moveresize_move_keyboard) {
1340
1341                 moveresize_start(client, e->xclient.data.l[0],
1342                                  e->xclient.data.l[1], e->xclient.data.l[3],
1343                                  e->xclient.data.l[2]);
1344             }
1345             else if ((Atom)e->xclient.data.l[2] ==
1346                      prop_atoms.net_wm_moveresize_cancel)
1347                 moveresize_end(TRUE);
1348         } else if (msgtype == prop_atoms.net_moveresize_window) {
1349             gint ograv, x, y, w, h;
1350
1351             ograv = client->gravity;
1352
1353             if (e->xclient.data.l[0] & 0xff)
1354                 client->gravity = e->xclient.data.l[0] & 0xff;
1355
1356             if (e->xclient.data.l[0] & 1 << 8)
1357                 x = e->xclient.data.l[1];
1358             else
1359                 x = client->area.x;
1360             if (e->xclient.data.l[0] & 1 << 9)
1361                 y = e->xclient.data.l[2];
1362             else
1363                 y = client->area.y;
1364
1365             if (e->xclient.data.l[0] & 1 << 10) {
1366                 w = e->xclient.data.l[3];
1367
1368                 /* if x was not given, then use gravity to figure out the new
1369                    x.  the reference point should not be moved */
1370                 if (!(e->xclient.data.l[0] & 1 << 8))
1371                     client_gravity_resize_w(client, &x, client->area.width, w);
1372             }
1373             else
1374                 w = client->area.width;
1375
1376             if (e->xclient.data.l[0] & 1 << 11) {
1377                 h = e->xclient.data.l[4];
1378
1379                 /* if y was not given, then use gravity to figure out the new
1380                    y.  the reference point should not be moved */
1381                 if (!(e->xclient.data.l[0] & 1 << 9))
1382                     client_gravity_resize_h(client, &y, client->area.height,h);
1383             }
1384             else
1385                 h = client->area.height;
1386
1387             ob_debug("MOVERESIZE x %d %d y %d %d (gravity %d)\n",
1388                      e->xclient.data.l[0] & 1 << 8, x,
1389                      e->xclient.data.l[0] & 1 << 9, y,
1390                      client->gravity);
1391
1392             client_find_onscreen(client, &x, &y, w, h, FALSE);
1393
1394             client_configure(client, x, y, w, h, FALSE, TRUE, FALSE);
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]);
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, TRUE);
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             ob_debug("Update NORMAL hints\n");
1485             client_update_normal_hints(client);
1486             /* normal hints can make a window non-resizable */
1487             client_setup_decor_and_functions(client, FALSE);
1488
1489             /* make sure the client's sizes are within its bounds, but only
1490                reconfigure the window if it needs to. emacs will update its
1491                normal hints every time it receives a conigurenotify */
1492             client_reconfigure(client, FALSE);
1493         } else if (msgtype == XA_WM_HINTS) {
1494             client_update_wmhints(client);
1495         } else if (msgtype == XA_WM_TRANSIENT_FOR) {
1496             client_update_transient_for(client);
1497             client_get_type_and_transientness(client);
1498             /* type may have changed, so update the layer */
1499             client_calc_layer(client);
1500             client_setup_decor_and_functions(client, TRUE);
1501         } else if (msgtype == prop_atoms.net_wm_name ||
1502                    msgtype == prop_atoms.wm_name ||
1503                    msgtype == prop_atoms.net_wm_icon_name ||
1504                    msgtype == prop_atoms.wm_icon_name) {
1505             client_update_title(client);
1506         } else if (msgtype == prop_atoms.wm_protocols) {
1507             client_update_protocols(client);
1508             client_setup_decor_and_functions(client, TRUE);
1509         }
1510         else if (msgtype == prop_atoms.net_wm_strut) {
1511             client_update_strut(client);
1512         }
1513         else if (msgtype == prop_atoms.net_wm_strut_partial) {
1514             client_update_strut(client);
1515         }
1516         else if (msgtype == prop_atoms.net_wm_icon) {
1517             client_update_icons(client);
1518         }
1519         else if (msgtype == prop_atoms.net_wm_icon_geometry) {
1520             client_update_icon_geometry(client);
1521         }
1522         else if (msgtype == prop_atoms.net_wm_user_time) {
1523             client_update_user_time(client);
1524         }
1525         else if (msgtype == prop_atoms.net_wm_user_time_window) {
1526             client_update_user_time_window(client);
1527         }
1528 #ifdef SYNC
1529         else if (msgtype == prop_atoms.net_wm_sync_request_counter) {
1530             client_update_sync_request_counter(client);
1531         }
1532 #endif
1533         break;
1534     case ColormapNotify:
1535         client_update_colormap(client, e->xcolormap.colormap);
1536         break;
1537     default:
1538         ;
1539 #ifdef SHAPE
1540         if (extensions_shape && e->type == extensions_shape_event_basep) {
1541             client->shaped = ((XShapeEvent*)e)->shaped;
1542             frame_adjust_shape(client->frame);
1543         }
1544 #endif
1545     }
1546 }
1547
1548 static void event_handle_dock(ObDock *s, XEvent *e)
1549 {
1550     switch (e->type) {
1551     case ButtonPress:
1552         if (e->xbutton.button == 1)
1553             stacking_raise(DOCK_AS_WINDOW(s));
1554         else if (e->xbutton.button == 2)
1555             stacking_lower(DOCK_AS_WINDOW(s));
1556         break;
1557     case EnterNotify:
1558         dock_hide(FALSE);
1559         break;
1560     case LeaveNotify:
1561         /* don't hide when moving into a dock app */
1562         if (e->xcrossing.detail != NotifyInferior)
1563             dock_hide(TRUE);
1564         break;
1565     }
1566 }
1567
1568 static void event_handle_dockapp(ObDockApp *app, XEvent *e)
1569 {
1570     switch (e->type) {
1571     case MotionNotify:
1572         dock_app_drag(app, &e->xmotion);
1573         break;
1574     case UnmapNotify:
1575         if (app->ignore_unmaps) {
1576             app->ignore_unmaps--;
1577             break;
1578         }
1579         dock_remove(app, TRUE);
1580         break;
1581     case DestroyNotify:
1582         dock_remove(app, FALSE);
1583         break;
1584     case ReparentNotify:
1585         dock_remove(app, FALSE);
1586         break;
1587     case ConfigureNotify:
1588         dock_app_configure(app, e->xconfigure.width, e->xconfigure.height);
1589         break;
1590     }
1591 }
1592
1593 static ObMenuFrame* find_active_menu()
1594 {
1595     GList *it;
1596     ObMenuFrame *ret = NULL;
1597
1598     for (it = menu_frame_visible; it; it = g_list_next(it)) {
1599         ret = it->data;
1600         if (ret->selected)
1601             break;
1602         ret = NULL;
1603     }
1604     return ret;
1605 }
1606
1607 static ObMenuFrame* find_active_or_last_menu()
1608 {
1609     ObMenuFrame *ret = NULL;
1610
1611     ret = find_active_menu();
1612     if (!ret && menu_frame_visible)
1613         ret = menu_frame_visible->data;
1614     return ret;
1615 }
1616
1617 static gboolean event_handle_menu_keyboard(XEvent *ev)
1618 {
1619     guint keycode, state;
1620     gunichar unikey;
1621     ObMenuFrame *frame;
1622     gboolean ret = FALSE;
1623
1624     keycode = ev->xkey.keycode;
1625     state = ev->xkey.state;
1626     unikey = translate_unichar(keycode);
1627
1628     frame = find_active_or_last_menu();
1629     if (frame == NULL)
1630         g_assert_not_reached(); /* there is no active menu */
1631
1632     else if (ev->type == KeyPress) {
1633         if (keycode == ob_keycode(OB_KEY_ESCAPE) && state == 0) {
1634             menu_frame_hide_all();
1635             ret = TRUE;
1636         }
1637
1638         else if (keycode == ob_keycode(OB_KEY_LEFT) && ev->xkey.state == 0) {
1639             /* Left goes to the parent menu */
1640             menu_frame_select(frame, NULL, TRUE);
1641             ret = TRUE;
1642         }
1643
1644         else if (keycode == ob_keycode(OB_KEY_RIGHT) && ev->xkey.state == 0) {
1645             /* Right goes to the selected submenu */
1646             if (frame->child) menu_frame_select_next(frame->child);
1647             ret = TRUE;
1648         }
1649
1650         else if (keycode == ob_keycode(OB_KEY_UP) && state == 0) {
1651             menu_frame_select_previous(frame);
1652             ret = TRUE;
1653         }
1654
1655         else if (keycode == ob_keycode(OB_KEY_DOWN) && state == 0) {
1656             menu_frame_select_next(frame);
1657             ret = TRUE;
1658         }
1659     }
1660
1661     /* Use KeyRelease events for running things so that the key release doesn't
1662        get sent to the focused application.
1663
1664        Allow ControlMask only, and don't bother if the menu is empty */
1665     else if ((ev->xkey.state & ~ControlMask) == 0 && frame->entries) {
1666         if (keycode == ob_keycode(OB_KEY_RETURN)) {
1667             /* Enter runs the active item or goes into the submenu.
1668                Control-Enter runs it without closing the menu. */
1669             if (frame->child)
1670                 menu_frame_select_next(frame->child);
1671             else if (frame->selected)
1672                 menu_entry_frame_execute(frame->selected, state);
1673
1674             ret = TRUE;
1675         }
1676
1677         /* keyboard accelerator shortcuts. (if it was a valid key) */
1678         else if (unikey != 0) {
1679             GList *start;
1680             GList *it;
1681             ObMenuEntryFrame *found = NULL;
1682             guint num_found = 0;
1683
1684             /* start after the selected one */
1685             start = frame->entries;
1686             if (frame->selected) {
1687                 for (it = start; frame->selected != it->data;
1688                      it = g_list_next(it))
1689                     g_assert(it != NULL); /* nothing was selected? */
1690                 /* next with wraparound */
1691                 start = g_list_next(it);
1692                 if (start == NULL) start = frame->entries;
1693             }
1694
1695             it = start;
1696             do {
1697                 ObMenuEntryFrame *e = it->data;
1698                 gunichar entrykey = 0;
1699
1700                 if (e->entry->type == OB_MENU_ENTRY_TYPE_NORMAL)
1701                     entrykey = e->entry->data.normal.shortcut;
1702                 else if (e->entry->type == OB_MENU_ENTRY_TYPE_SUBMENU)
1703                     entrykey = e->entry->data.submenu.submenu->shortcut;
1704
1705                 if (unikey == entrykey) {
1706                     if (found == NULL) found = e;
1707                     ++num_found;
1708                 }
1709
1710                 /* next with wraparound */
1711                 it = g_list_next(it);
1712                 if (it == NULL) it = frame->entries;
1713             } while (it != start);
1714
1715             if (found) {
1716                 if (found->entry->type == OB_MENU_ENTRY_TYPE_NORMAL &&
1717                     num_found == 1)
1718                 {
1719                     menu_frame_select(frame, found, TRUE);
1720                     usleep(50000); /* highlight the item for a short bit so the
1721                                       user can see what happened */
1722                     menu_entry_frame_execute(found, state);
1723                 } else {
1724                     menu_frame_select(frame, found, TRUE);
1725                     if (num_found == 1)
1726                         menu_frame_select_next(frame->child);
1727                 }
1728
1729                 ret = TRUE;
1730             }
1731         }
1732     }
1733
1734     return ret;
1735 }
1736
1737 static gboolean event_handle_menu(XEvent *ev)
1738 {
1739     ObMenuFrame *f;
1740     ObMenuEntryFrame *e;
1741     gboolean ret = TRUE;
1742
1743     switch (ev->type) {
1744     case ButtonRelease:
1745         if (menu_hide_delay_reached() &&
1746             (ev->xbutton.button < 4 || ev->xbutton.button > 5))
1747         {
1748             if ((e = menu_entry_frame_under(ev->xbutton.x_root,
1749                                             ev->xbutton.y_root)))
1750             {
1751                 menu_frame_select(e->frame, e, TRUE);
1752                 menu_entry_frame_execute(e, ev->xbutton.state);
1753             }
1754             else
1755                 menu_frame_hide_all();
1756         }
1757         break;
1758     case EnterNotify:
1759         if ((e = g_hash_table_lookup(menu_frame_map, &ev->xcrossing.window))) {
1760             if (e->ignore_enters)
1761                 --e->ignore_enters;
1762             else if (!(f = find_active_menu()) ||
1763                      f == e->frame ||
1764                      f->parent == e->frame ||
1765                      f->child == e->frame)
1766                 menu_frame_select(e->frame, e, FALSE);
1767         }
1768         break;
1769     case LeaveNotify:
1770         /*ignore leaves when we're already in the window */
1771         if (ev->xcrossing.detail == NotifyInferior)
1772             break;
1773
1774         if ((e = g_hash_table_lookup(menu_frame_map, &ev->xcrossing.window)) &&
1775             (f = find_active_menu()) && f->selected == e &&
1776             e->entry->type != OB_MENU_ENTRY_TYPE_SUBMENU)
1777         {
1778             menu_frame_select(e->frame, NULL, FALSE);
1779         }
1780         break;
1781     case MotionNotify:
1782         if ((e = menu_entry_frame_under(ev->xmotion.x_root,
1783                                         ev->xmotion.y_root)))
1784             if (!(f = find_active_menu()) ||
1785                 f == e->frame ||
1786                 f->parent == e->frame ||
1787                 f->child == e->frame)
1788                 menu_frame_select(e->frame, e, FALSE);
1789         break;
1790     case KeyPress:
1791     case KeyRelease:
1792         ret = event_handle_menu_keyboard(ev);
1793         break;
1794     }
1795     return ret;
1796 }
1797
1798 static void event_handle_user_input(ObClient *client, XEvent *e)
1799 {
1800     g_assert(e->type == ButtonPress || e->type == ButtonRelease ||
1801              e->type == MotionNotify || e->type == KeyPress ||
1802              e->type == KeyRelease);
1803
1804     if (menu_frame_visible) {
1805         if (event_handle_menu(e))
1806             /* don't use the event if the menu used it, but if the menu
1807                didn't use it and it's a keypress that is bound, it will
1808                close the menu and be used */
1809             return;
1810     }
1811
1812     /* if the keyboard interactive action uses the event then dont
1813        use it for bindings. likewise is moveresize uses the event. */
1814     if (!actions_interactive_input_event(e) && !moveresize_event(e)) {
1815         if (moveresize_in_progress)
1816             /* make further actions work on the client being
1817                moved/resized */
1818             client = moveresize_client;
1819
1820         if (e->type == ButtonPress ||
1821             e->type == ButtonRelease ||
1822             e->type == MotionNotify)
1823         {
1824             /* the frame may not be "visible" but they can still click on it
1825                in the case where it is animating before disappearing */
1826             if (!client || !frame_iconify_animating(client->frame))
1827                 mouse_event(client, e);
1828         } else
1829             keyboard_event((focus_cycle_target ? focus_cycle_target :
1830                             (client ? client : focus_client)), e);
1831     }
1832 }
1833
1834 static void focus_delay_dest(gpointer data)
1835 {
1836     g_free(data);
1837 }
1838
1839 static gboolean focus_delay_cmp(gconstpointer d1, gconstpointer d2)
1840 {
1841     const ObFocusDelayData *f1 = d1;
1842     return f1->client == d2;
1843 }
1844
1845 static gboolean focus_delay_func(gpointer data)
1846 {
1847     ObFocusDelayData *d = data;
1848     Time old = event_curtime;
1849
1850     event_curtime = d->time;
1851     if (focus_client != d->client) {
1852         if (client_focus(d->client) && config_focus_raise)
1853             stacking_raise(CLIENT_AS_WINDOW(d->client));
1854     }
1855     event_curtime = old;
1856     return FALSE; /* no repeat */
1857 }
1858
1859 static void focus_delay_client_dest(ObClient *client, gpointer data)
1860 {
1861     ob_main_loop_timeout_remove_data(ob_main_loop, focus_delay_func,
1862                                      client, FALSE);
1863 }
1864
1865 void event_halt_focus_delay()
1866 {
1867     ob_main_loop_timeout_remove(ob_main_loop, focus_delay_func);
1868 }
1869
1870 gulong event_start_ignore_all_enters()
1871 {
1872     XSync(ob_display, FALSE);
1873     return LastKnownRequestProcessed(ob_display);
1874 }
1875
1876 void event_end_ignore_all_enters(gulong start)
1877 {
1878     ObSerialRange *r;
1879
1880     g_assert(start != 0);
1881     XSync(ob_display, FALSE);
1882
1883     r = g_new(ObSerialRange, 1);
1884     r->start = start;
1885     r->end = LastKnownRequestProcessed(ob_display);
1886     ignore_serials = g_slist_prepend(ignore_serials, r);
1887
1888     /* increment the serial so we don't ignore events we weren't meant to */
1889     XSync(ob_display, FALSE);
1890 }
1891
1892 static gboolean is_enter_focus_event_ignored(XEvent *e)
1893 {
1894     GSList *it, *next;
1895
1896     g_assert(e->type == EnterNotify &&
1897              !(e->xcrossing.mode == NotifyGrab ||
1898                e->xcrossing.mode == NotifyUngrab ||
1899                e->xcrossing.detail == NotifyInferior));
1900
1901     for (it = ignore_serials; it; it = next) {
1902         ObSerialRange *r = it->data;
1903
1904         next = g_slist_next(it);
1905
1906         if ((glong)(e->xany.serial - r->end) > 0) {
1907             /* past the end */
1908             ignore_serials = g_slist_delete_link(ignore_serials, it);
1909             g_free(r);
1910         }
1911         else if ((glong)(e->xany.serial - r->start) >= 0)
1912             return TRUE;
1913     }
1914     return FALSE;
1915 }
1916
1917 void event_cancel_all_key_grabs()
1918 {
1919     if (actions_interactive_act_running()) {
1920         actions_interactive_cancel_act();
1921         ob_debug("KILLED interactive action\n");
1922     }
1923     else if (menu_frame_visible) {
1924         menu_frame_hide_all();
1925         ob_debug("KILLED open menus\n");
1926     }
1927     else if (grab_on_keyboard()) {
1928         ungrab_keyboard();
1929         ob_debug("KILLED active grab on keyboard\n");
1930     }
1931     else
1932         ungrab_passive_key();
1933 }
1934
1935 gboolean event_time_after(Time t1, Time t2)
1936 {
1937     g_assert(t1 != CurrentTime);
1938     g_assert(t2 != CurrentTime);
1939
1940     /*
1941       Timestamp values wrap around (after about 49.7 days). The server, given
1942       its current time is represented by timestamp T, always interprets
1943       timestamps from clients by treating half of the timestamp space as being
1944       later in time than T.
1945       - http://tronche.com/gui/x/xlib/input/pointer-grabbing.html
1946     */
1947
1948     /* TIME_HALF is half of the number space of a Time type variable */
1949 #define TIME_HALF (Time)(1 << (sizeof(Time)*8-1))
1950
1951     if (t2 >= TIME_HALF)
1952         /* t2 is in the second half so t1 might wrap around and be smaller than
1953            t2 */
1954         return t1 >= t2 || t1 < (t2 + TIME_HALF);
1955     else
1956         /* t2 is in the first half so t1 has to come after it */
1957         return t1 >= t2 && t1 < (t2 + TIME_HALF);
1958 }