+static dbus_bool_t
+spi_dbus_add_disconnect_match (DBusConnection *bus, const char *name)
+{
+ char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
+ if (match)
+ {
+ DBusError error;
+ dbus_error_init (&error);
+ dbus_bus_add_match (bus, match, &error);
+ g_free (match);
+ return !dbus_error_is_set (&error);
+ }
+ else return FALSE;
+}
+
+static dbus_bool_t
+spi_dbus_remove_disconnect_match (DBusConnection *bus, const char *name)
+{
+ char *match = g_strdup_printf ("interface=%s,member=NameOwnerChanged,arg0=%s", DBUS_INTERFACE_DBUS, name);
+ if (match)
+ {
+ DBusError error;
+ dbus_error_init (&error);
+ dbus_bus_remove_match (bus, match, &error);
+ g_free (match);
+ return !dbus_error_is_set (&error);
+ }
+ else return FALSE;
+}
+
+static unsigned int
+keysym_mod_mask (KeySym keysym, KeyCode keycode)
+{
+ /* we really should use XKB and look directly at the keymap */
+ /* this is very inelegant */
+ Display *display = spi_get_display ();
+ unsigned int mods_rtn = 0;
+ unsigned int retval = 0;
+ KeySym sym_rtn;
+
+ if (XkbLookupKeySym (display, keycode, 0, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = 0;
+ }
+ else if (XkbLookupKeySym (display, keycode, ShiftMask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = ShiftMask;
+ }
+ else if (XkbLookupKeySym (display, keycode, Mod2Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = Mod2Mask;
+ }
+ else if (XkbLookupKeySym (display, keycode, Mod3Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = Mod3Mask;
+ }
+ else if (XkbLookupKeySym (display, keycode,
+ ShiftMask | Mod2Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = (Mod2Mask | ShiftMask);
+ }
+ else if (XkbLookupKeySym (display, keycode,
+ ShiftMask | Mod3Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = (Mod3Mask | ShiftMask);
+ }
+ else if (XkbLookupKeySym (display, keycode,
+ ShiftMask | Mod4Mask, &mods_rtn, &sym_rtn) &&
+ (sym_rtn == keysym)) {
+ retval = (Mod4Mask | ShiftMask);
+ }
+ else
+ retval = 0xFFFF;
+ return retval;
+}
+
+static gboolean
+spi_dec_replace_map_keysym (DEControllerPrivateData *priv, KeyCode keycode, KeySym keysym)
+{
+#ifdef HAVE_XKB
+ Display *dpy = spi_get_display ();
+ XkbDescPtr desc;
+ if (!(desc = XkbGetMap (dpy, XkbAllMapComponentsMask, XkbUseCoreKbd)))
+ {
+ fprintf (stderr, "ERROR getting map\n");
+ }
+ XFlush (dpy);
+ XSync (dpy, False);
+ if (desc && desc->map)
+ {
+ gint offset = desc->map->key_sym_map[keycode].offset;
+ desc->map->syms[offset] = keysym;
+ }
+ else
+ {
+ fprintf (stderr, "Error changing key map: empty server structure\n");
+ }
+ XkbSetMap (dpy, XkbAllMapComponentsMask, desc);
+ /**
+ * FIXME: the use of XkbChangeMap, and the reuse of the priv->xkb_desc structure,
+ * would be far preferable.
+ * HOWEVER it does not seem to work using XFree 4.3.
+ **/
+ /* XkbChangeMap (dpy, priv->xkb_desc, priv->changes); */
+ XFlush (dpy);
+ XSync (dpy, False);
+ XkbFreeKeyboard (desc, 0, TRUE);
+
+ return TRUE;
+#else
+ return FALSE;
+#endif
+}
+
+static gboolean
+spi_dec_reset_reserved (gpointer data)
+{
+ DEControllerPrivateData *priv = data;
+ spi_dec_replace_map_keysym (priv, priv->reserved_keycode, priv->reserved_keysym);
+ priv->reserved_reset_timeout = 0;
+ return FALSE;
+}