Initial revision

wmlib/event.c

@@ -0,0 +1,95 @@
+/* event.c - WindowMaker event handler
+ * 
+ * WMlib - WindowMaker application programming interface
+ * 
+ * Copyright (C) 1997 Alfredo K. Kojima
+ *  
+ *  This library is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU Library General Public
+ *  License as published by the Free Software Foundation; either
+ *  version 2 of the License, or (at your option) any later version.
+ *  
+ *  This library is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ *  Library General Public License for more details.
+ *  
+ *  You should have received a copy of the GNU Library General Public
+ *  License along with this library; if not, write to the Free
+ *  Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <X11/Xlib.h>
+#include <X11/Xutil.h>
+
+#include "WMaker.h"
+#include "app.h"
+#include "menu.h"
+
+
+static Atom _XA_WINDOWMAKER_MENU=0;
+
+enum {
+    wmSelectItem = 1
+};
+
+
+static wmMenuEntry*
+findEntry(WMMenu *menu, int tag)
+{
+    wmMenuEntry *entry=menu->first;
+
+    while (entry) {
+	if (entry->tag == tag) {
+	    return entry;
+	}
+	if (entry->cascade) {
+	    wmMenuEntry *tmp;
+	    tmp = findEntry(entry->cascade, tag);
+	    if (tmp)
+	      return tmp;
+	}
+	entry = entry->next;
+    }
+    return NULL;
+}
+
+
+static void
+wmHandleMenuEvents(WMAppContext *app, XEvent *event)
+{
+    wmMenuEntry *entry;
+
+    switch (event->xclient.data.l[1]) {
+     case wmSelectItem:
+	entry = findEntry(app->main_menu, event->xclient.data.l[2]);
+	if (entry && entry->callback) {
+	    (*entry->callback)(entry->clientData, event->xclient.data.l[2],
+			       event->xclient.data.l[0]);
+	}
+	break;
+    }
+}
+
+
+int
+WMProcessEvent(WMAppContext *app, XEvent *event)
+{
+    int proc=False;
+    if (!_XA_WINDOWMAKER_MENU) {
+	_XA_WINDOWMAKER_MENU = XInternAtom(app->dpy, "_WINDOWMAKER_MENU", 
+					   False);
+    }
+    switch (event->type) {
+     case ClientMessage:
+	if (event->xclient.format == 32
+	    && event->xclient.message_type == _XA_WINDOWMAKER_MENU
+	    && event->xclient.window == app->main_window) {
+	    wmHandleMenuEvents(app, event);
+	    proc = True;
+	}
+    }
+    return proc;
+}