<AWT Dev>  Review request for 8166591 [macos 10.12] Trackpad scrolling of text on OS X 10.12 Sierra is very fast (Trackpad, Retina only)
alexandr.scherbatiy at oracle.com
Wed Sep 28 17:16:20 UTC 2016
Could you review the fix:
This issue has been risen and investigated by JetBrains team in the
MacOS Sierra 10.12 sends many scroll events with values close to zero
when the trackpad is used. The small scroll values are rounded to +1 or
-1 so one line scroll would be possible. It leads that many small scroll
events causes fast scrolling.
The proposed fix accumulates scroll values from the trackpad until
they exceed some threshold values. Only after that
MouseWheelEvent.wheelRotation value is set. Mouse wheel scroll events
are handled as before, small values are just rounded to + or -1.
More information about the awt-dev