c064e18894
When an application translates a key event and drop its native event before passing to imquartz, it can't recognize the NSEvent. On this case imquartz doesn't emit any signals such as "commit" signal so that the application doesn't insert any text. To avoid no response, at least imquartz should fallback to slave GtkIMContextSimple. https://bugzilla.gnome.org/show_bug.cgi?id=694273#c27