RFR: 8351867: No UI changes while iconified

[Kevin Rushforth]

On Tue, 18 Mar 2025 15:01:46 GMT, Ambarish Rapte <arapte 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.

Reviewers: @arapte @lukostyra

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PR Comment: https://git.openjdk.org/jfx/pull/1733#issuecomment-2776884766