RFR: 8306121: Scene not rendered initially when changing scenes after fix for JDK-8296621 [v5]

[Kevin Rushforth]

On Mon, 24 Apr 2023 15:03:47 GMT, Jose Pereda <jpereda at openjdk.org> wrote:

>> Thiago Milczarek Sayao has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Change call to requestFocus
>
> modules/javafx.graphics/src/main/java/com/sun/glass/ui/gtk/GtkWindow.java line 51:
> 
>> 49:     // empty - not needed by this implementation
>> 50:     @Override
>> 51:     protected native void _updateViewSize(long ptr);
> 
> Is there a system test that can be used to verify these changes on Linux? Since you have mentioned this is the same as #1054, I take that SetSceneScalingTest can be used. 
> 
> Also, I'm not sure how you would run WinIconified test attached to the JBS ticket to see that it fails or passes. If that can be converted to system test, could you add it to this PR?

I noticed this earlier, and filed [JDK-8298500](https://bugs.openjdk.org/browse/JDK-8298500) to improve our test coverage in this area.

It would be good to make sure that we have a test that does this for at least an inconified window to help validate this PR.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1110#discussion_r1175879302