RFR: 8354943: [Linux] Simplify and update glass gtk backend: window sizing, positioning, and state management issues [v20]

Sat May 17 20:21:56 UTC 2025

On Sun, 11 May 2025 12:26:57 GMT, Thiago Milczarek Sayao <tsayao at openjdk.org> wrote:

> There are still two bugs I need to fix (that I know of):
> 
> * Popup menu grab is not working;
> * Sometimes there's a glitch of the size of the decoration on top of the view;

Last test run on Ubuntu 24.04:
- Wayland: All tests pass
- Xorg: 1 fail on  `DatePickerUpdateOnAlertCloseTest` (probably unrelated).

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PR Comment: https://git.openjdk.org/jfx/pull/1789#issuecomment-2888568290