Comment 1 for bug 1517204

This seems to be a default behaviour of the TextField component, that removes focus from the field when validating it from the OSK, thus hiding the OSK.

Ideally we would use a validator on the field, but there doesn’t seem to be a way to specify a custom validation function, the closest we can get is a RegExpValidator, but that won’t work for us.

Not sure how to prevent the text field from emitting the accepted() signal when the URL is not valid.