Integrated: 8345538: Robot.mouseMove doesn't clamp bounds on macOS when trying to move mouse off screen

[Alisen Chung]

On Tue, 17 Dec 2024 01:01:55 GMT, Alisen Chung <achung at openjdk.org> wrote:

> Currently on macOS when mouseMove is given an offscreen coordinate to move the mouse to, mouseMove will physically clamp to the edge of the screen, but if you try to grab the mouse location immediately after by using MouseInfo.getPointerInfo().getLocation() you will get the value of the offscreen point.
> 
> Windows and linux do this clamping and coordinate handling for us, but new distributions may not necessarily handle clamping the same way, so Robot should be checking for clamping rather than delegating it to native.
> 
> This fix updates shared code to cache the screen bounds and adds a check to not exceed the bounds in mouseMove. The caching is done in the Robot constructor, so if the screen bounds changes the constructor must be called again to update to the new bounds.

This pull request has now been integrated.

Changeset: 461cb842
Author:    Alisen Chung <achung at openjdk.org>
URL:       https://git.openjdk.org/jdk/commit/461cb84277b40d01c5d04be3c74f25d8667a207c
Stats:     121 lines in 2 files changed: 119 ins; 0 del; 2 mod

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

Reviewed-by: honkar, prr

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PR: https://git.openjdk.org/jdk/pull/22781