On Mon, 10 Aug 2026 21:44:08 GMT, Thiago Milczarek Sayao <[email protected]> 
wrote:

>> This is a continuation to 
>> [JDK-8236651](https://bugs.openjdk.org/browse/JDK-8236651) and it aims to 
>> stabilize the linux glass gtk backend.
>> 
>> It refactors the Glass GTK implementation with a primary focus on window 
>> sizing, positioning, and state management, addressing a number of 
>> long-standing issues.
>> 
>> Previously, three separate context classes existed, two of which were used 
>> for Java Web Start and Applets. These have been unified, as they are no 
>> longer required.
>> 
>> Additional tests have been introduced to improve coverage. Some tests 
>> produced different results depending on the StageStyle, so they have been 
>> converted to use `@ParameterizedTest` to exercise multiple styles.
>> 
>> Although the primary focus is XWayland, the changes have also been verified 
>> to work correctly on Xorg.
>> 
>> This replaces #1789. It removes the use of GdkWindow in favor of GtkWindow, 
>> reducing risk and simplifying the review process while preserving the same 
>> set of bug fixes. Additionally, #2025 requires a `GtkWindow` to be used when 
>> setting the parent of the file chooser dialog.
>> 
>> To show debug messages,  build with `-PCONF=DebugNative`  and run with 
>> `-Djdk.gtk.verbose=true`. Log categories can be passed with 
>> `-Dglass.gtk.logCategories=CATEGORY` 
>> 
>> `CATEGORY` can be one or more of:
>> - all
>> - size
>> - position
>> - focus
>> - state
>> - lifecycle
>> - input
>> - dialog
>> 
>> Multiple categories can be specified by separating them with commas (e.g. 
>> size,focus,input).
>> 
>> A manual test is provided:
>> `java @build/run.args tests/manual/stage/TestStage.java`
>> 
>> When a window property is set, it is reported immediately. However, once it 
>> reaches the native Glass layer, it may be adjusted or rejected, causing the 
>> property to be updated again. Introducing a delay helps ensure the final 
>> state has been applied before it is verified.
>> 
>> ---------
>> - [x] I confirm that I make this contribution in accordance with the 
>> [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai).
>
> Thiago Milczarek Sayao has updated the pull request with a new target base 
> due to a merge or a rebase. The pull request now contains 43 commits:
> 
>  - Merge branch 'master' into 8354943_v2
>  - mapped = true for popups
>  - Do not block sent configure events, as doing so breaks screen-change 
> detection.
>  - - Restore gdk_event_request_motions (it's needed even without event 
> compression)
>    - Remove cursor unref (it's aready de-referenced on gdk_window_set_cursor)
>    - Improve XComposite message
>  - Remove configurable delays
>  - Fix test
>  - Xorg fixes
>  - Revert "Rewrite WrongStageFocusWithApplicationModalityTest because it 
> fails intermittently"
>    
>    This reverts commit c6b9dd745e5d762adb89a3b596e53b0d8a790d7f.
>  - Rewrite WrongStageFocusWithApplicationModalityTest because it fails 
> intermittently
>  - Use existing verbose flag for GTK
>  - ... and 33 more: https://git.openjdk.org/jfx/compare/58a7bea2...969ed5f3

This PR should merge in master again.
I tested it, especially if it improves issues I found on Linux and for now, it 
looks very good.

It actually fixes a very annoying dialog bug for me, where the dialog is not 
correcty layouted for the very first time.

See here, only reproducable on Linux, fixed with your PR:

[dialog.webm](https://github.com/user-attachments/assets/dcf8a907-e7fe-4d83-8c11-dc9658876d94)

-------------

PR Comment: https://git.openjdk.org/jfx/pull/2139#issuecomment-5551699608

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