cellrenderer text (editable) loses focus if AltGr, and Alt key is pressed.

Submitted by Holger Seelig

Assigned to gtk..@..tk.org

Description

Created attachment 349123 Example of TreeView editable

If in a GtkCellrendererText, which is editable, the AltGr Key, or the Alt Key is pressed, then the editable widget loses the focus. That mean a lot of keys are not accessable, for instance on a German keyboard.

The described behaviour is visible in gtkmm and pygtk. I attached a Python example.

Attachment 349123, "Example of TreeView editable":
TreeView-editable.py

Version: 3.20.x