createvol: Make sure error boxes run synchronous if we are modal.

src/virtManager/createvol.py

@@ -265,11 +265,22 @@ class vmmCreateVolume(gobject.GObject):
             if fmt:
                 self.vol.format = fmt
         except ValueError, e:
-            return self.err.val_err(_("Volume Parameter Error"), str(e))
+            return self.val_err(_("Volume Parameter Error"), str(e))
         return True
 
     def show_err(self, info, details):
         async = not self.topwin.get_modal()
         self.err.show_err(info, details, async=async)
 
+    def val_err(self, info, details):
+        modal = self.topwin.get_modal()
+        ret = False
+        try:
+            self.topwin.set_modal(False)
+            ret = self.err.val_err(info, details, async=not modal)
+        finally:
+            self.topwin.set_modal(modal)
+
+        return ret
+
 gobject.type_register(vmmCreateVolume)

src/virtManager/error.py

@@ -90,7 +90,7 @@ class vmmErrorDialog (gtk.MessageDialog):
         else:
             self.run()
 
-    def _show_ok(self, dialog_type, text1, text2, title):
+    def _show_ok(self, dialog_type, text1, text2, title, async=True):
         def response_destroy(src, ignore):
             src.destroy()
 
@@ -106,20 +106,24 @@ class vmmErrorDialog (gtk.MessageDialog):
         if text2 is not None:
             self.val_err_box.format_secondary_text(text2)
 
-        self.val_err_box.show()
         self.val_err_box.connect("response", response_destroy)
+        if async:
+            self.val_err_box.show()
+        else:
+            self.val_err_box.run()
+
         return False
 
-    def val_err(self, text1, text2=None, title=None):
+    def val_err(self, text1, text2=None, title=None, async=True):
         logging.debug("Validation Error: %s" % text1)
         if title is None:
             title = _("Input Error")
-        return self._show_ok(gtk.MESSAGE_ERROR, text1, text2, title)
+        return self._show_ok(gtk.MESSAGE_ERROR, text1, text2, title, async)
 
-    def show_info(self, text1, text2=None, title=None):
+    def show_info(self, text1, text2=None, title=None, async=True):
         if title is None:
             title = ""
-        return self._show_ok(gtk.MESSAGE_INFO, text1, text2, title)
+        return self._show_ok(gtk.MESSAGE_INFO, text1, text2, title, async)
 
     def _show_warning(self, buttons, text1, text2):
         message_box = gtk.MessageDialog(self.get_transient_for(),