Glass on Mac sends a PRESS key event for each keyDown native notification regardless of whether this is an auto-repeat press event or not.

Also, the TYPED event is generated synthetically just after the PRESS event. (see GlassView2D/3D.m keyDown:).

On Windows when OS generates auto-repeat key press events, the event sequence is as following:

PRESS
TYPED
TYPED
...
RELEASE

We need to make Glass on Mac behave the same way.

Also note that for Cmd+<> key sequences Mac doesn't generate a RELEASE event, therefore we syntehsize the event ourselves (see GlassViewDelegate.m sendJavaKeyEvent:). According to the events provide by the native OS, it seems that if user holds a Cmd+<> key and the system generates auto-repeat events, we have no choice but generate

PRESS
TYPED
RELEASE
PRESS
TYPED
RELEASE
...

Seems that for Cmd+<> key combinations this is unavoidable.