elc_multibuttonentry: input panel should be shown whenever mbe is clicked.

Summary:
When mbe got focus the input panel will be shown.
Otherwise, input panel will be hidden.

If the mbe still got focus then input panel hide by user action.
there is no way to reactivate the input panel in case.

Reviewers: woohyun, jpeg, cedric, Hermet

Reviewed By: jpeg

Subscribers: cedric, jpeg

Differential Revision: https://phab.enlightenment.org/D4661

src/lib/elementary/elc_multibuttonentry.c

@@ -990,6 +990,10 @@ _mouse_clicked_signal_cb(void *data EINA_UNUSED,
                          const char *emission EINA_UNUSED,
                          const char *source EINA_UNUSED)
 {
+   ELM_MULTIBUTTONENTRY_DATA_GET_OR_RETURN(obj, sd);
+
+   if (sd->editable) elm_entry_input_panel_show(sd->entry);
+
    efl_event_callback_legacy_call(obj, EFL_UI_EVENT_CLICKED, NULL);
 }