Allow easy disabling of PRIMARY selection thru configuration?

[Jeremy Morton]

One of the long-term bugbears of users coming to Linux from just about 
any other GUI is the existence of two totally separate clipboards; the 
PRIMARY selection and the CLIPBOARD selection.  I doubt I'm gonna get 
the default behaviour changed, even though I think this default is 
terribly confusing.  However, how about we at least allow easy 
configuration of this through some settings in /etc?

As far as I understand it, X11 is responsible for the double-clipboard 
behaviour so X11 (or Wayland) is where it needs to be configurable.  I 
propose this: provide easy configuration of Wayland that allows the 
PRIMARY selection to be silently ignored.  When text is selected, 
Wayland will acknowledge to the application ownership of PRIMARY, and 
silently drop the content.  It will not inform other programs that 
PRIMARY has been taken ownership of, so other programs will not (IMHO 
unintuitively) deselect their selections.  When it comes to pasting 
from PRIMARY (ie. via middle-click), Wayland will paste from the 
CLIPBOARD selection instead of PRIMARY.

Would this be feasible?  It would finally allow Windows-style 
clipboard behaviour and satisfy many users (myself included).

-- 
Best regards,
Jeremy Morton (Jez)