RFR: 8351867: No UI changes while iconified

[Ambarish Rapte]

On Thu, 13 Mar 2025 10:36:40 GMT, John Hendrikx <jhendrikx at openjdk.org> wrote:

> Adds code to trigger a scene update when a Window is restored
> 
> This seems to solve https://bugs.openjdk.org/browse/JDK-8351867 and https://bugs.openjdk.org/browse/JDK-8146479

This does fix the issue on windows.
The issue on mac seems intermittent even without this change, and stays intermittent with this change.

The change seems to achieve the intended but the trigger check may not be the best way. `updateSceneState` is used when there are any changes with scene properties.
The redraw should be triggered by checking the change in scene graph. This change just triggers irrespective of that.

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PR Comment: https://git.openjdk.org/jfx/pull/1733#issuecomment-2733579704