RFR: 8273379: GTK3 stops sending key events during drag and drop [v32]

Sun May 28 21:10:11 UTC 2023

On Sat, 27 May 2023 17:34:39 GMT, Martin Fox <duke at openjdk.org> wrote:

> I don't think the original bug should be fixed as written. On both Mac and Windows the platform drag-and-drop system consumes all key events (well, on the Mac we see some `keyUp:` events but not for modifiers). That's a good thing, it prevents the user from invoking shortcuts that might close the app or source window. I don't see why Linux should be any different. It would be very odd for a UI toolkit to allow key events through during drag-and-drop and even odder if that only happened on one platform.
> 
> Whoever reported that bug has a problem they're trying to solve but I think they proposed the wrong solution.

Now that you said, I agree. 

There are some fragile parts that I replaced in this PR, that could be causing some bugs as [8280383](https://bugs.openjdk.org/browse/JDK-8280383). I could rework it so it has less changes.

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PR Comment: https://git.openjdk.org/jfx/pull/986#issuecomment-1566263876