Change to the linux kernel coding style
[wmaker-crm.git] / wmlib / event.c
1 /* event.c - WindowMaker event handler
2  *
3  * WMlib - WindowMaker application programming interface
4  *
5  * Copyright (C) 1997-2003 Alfredo K. Kojima
6  *
7  *  This library is free software; you can redistribute it and/or
8  *  modify it under the terms of the GNU Library General Public
9  *  License as published by the Free Software Foundation; either
10  *  version 2 of the License, or (at your option) any later version.
11  *
12  *  This library 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 GNU
15  *  Library General Public License for more details.
16  *
17  *  You should have received a copy of the GNU Library General Public
18  *  License along with this library; if not, write to the Free
19  *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
20  */
21
22 #include <stdlib.h>
23 #include <stdio.h>
24 #include <X11/Xlib.h>
25 #include <X11/Xutil.h>
26
27 #include "WMaker.h"
28 #include "app.h"
29 #include "menu.h"
30
31 static Atom _XA_WINDOWMAKER_MENU = 0;
32
33 enum {
34         wmSelectItem = 1
35 };
36
37 static wmMenuEntry *findEntry(WMMenu * menu, int tag)
38 {
39         wmMenuEntry *entry = menu->first;
40
41         while (entry) {
42                 if (entry->tag == tag) {
43                         return entry;
44                 }
45                 if (entry->cascade) {
46                         wmMenuEntry *tmp;
47                         tmp = findEntry(entry->cascade, tag);
48                         if (tmp)
49                                 return tmp;
50                 }
51                 entry = entry->next;
52         }
53         return NULL;
54 }
55
56 static void wmHandleMenuEvents(WMAppContext * app, XEvent * event)
57 {
58         wmMenuEntry *entry;
59
60         switch (event->xclient.data.l[1]) {
61         case wmSelectItem:
62                 entry = findEntry(app->main_menu, event->xclient.data.l[2]);
63                 if (entry && entry->callback) {
64                         (*entry->callback) (entry->clientData, event->xclient.data.l[2], event->xclient.data.l[0]);
65                 }
66                 break;
67         }
68 }
69
70 int WMProcessEvent(WMAppContext * app, XEvent * event)
71 {
72         int proc = False;
73         if (!_XA_WINDOWMAKER_MENU) {
74                 _XA_WINDOWMAKER_MENU = XInternAtom(app->dpy, "_WINDOWMAKER_MENU", False);
75         }
76         switch (event->type) {
77         case ClientMessage:
78                 if (event->xclient.format == 32
79                     && event->xclient.message_type == _XA_WINDOWMAKER_MENU
80                     && event->xclient.window == app->main_window) {
81                         wmHandleMenuEvents(app, event);
82                         proc = True;
83                 }
84         }
85         return proc;
86 }