tree 9127e7db56bdaa375cdd02bad03b80ac3b7ac406
parent c73c9971427538d8183e57dc10b51566839bebb2
author Ryan C. Gordon <icculus@icculus.org> 1561569703 -0400
committer Ryan C. Gordon <icculus@icculus.org> 1561569703 -0400

cocoa: Check for capslock in -[NSResponder flagsChanged], not with IOKit.

Using IOKit for this pops up a warning at startup on macOS 10.15 ("Catalina"),
asking the user to authorize the app to listen to all keyboard input in the
system, which is unacceptable.

I _think_ we were using IOKit under incorrect presumptions here; the Stack
Overflow link mentioned in it was complaining about not being able to use
flagsChanged to differentiate between left and right mod keys, but that's not
an issue for capslock.

It's also possible this code was trying to deal with capslock changing when
the window didn't have focus, but we handle this elsewhere now, if we didn't
at the time.