RFR: 8345538: Robot.mouseMove doesn't clamp bounds on macOS when trying to move mouse off screen [v11]

[Alisen Chung]

On Wed, 30 Apr 2025 15:06:48 GMT, Alexander Zvegintsev <azvegint at openjdk.org> wrote:

>> These failures when moving to the offscreen point are actually because the new onscreen point being moved to is closer distance-wise than the onscreen point it would have moved to before the fix.
>
> I think it doesn't look like expected behavior anyway, the pre-clamping one seems more reasonable to me (as for Linux, haven't tested other platforms).
> 
> Anyway, if the we are only having issues getting the mouse pointer coordinates after moving it off-screen on macos, I guess the fix shouldn't change shared code and other platforms.

Linux tries to respect one of the bounds if it can, while my code just looks for the closest point across all screens. I think both are reasonable, but I've moved the code into macOS code so the behavior isn't changed on different platforms.

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PR Review Comment: https://git.openjdk.org/jdk/pull/22781#discussion_r2072709435