Hi, Il 13/08/25 10:02, Moss Heim via Development ha scritto:
I would just like to point out that removing these calls (for example in tst_focus::policy) causes some tests to fail consistently with XCB on Ubuntu 24.04 and 25.04. As best I can tell this is due to "focus stealing prevention" behavior in GNOME[1]. We also saw this in the WebEngine project, both on CI and locally, which triggered me to ask the original question on Teams which is linked from the codereview comment.[2]In other words, as best I can tell you are not guaranteed to get active focus when opening and closing several windows in rapid succession on GNOME, this could be from a race condition or from some throttling behavior. If it's expected that show()ing a window**/always/**gives it active focus in these instances, I believe there is some bug in Qt's XCB platform code.
TBH, if a WM decides not to give focus to a window (to prevent focus stealing and what not), it shouldn't give it even after a requestActivate() or somesuch. But that's another discussion.
More on topic: if ultimately it is platform specific whether show() alone is sufficient or one needs show()+requestAcivate() (+ QVERIFY), couldn't this combination be packaged in some QtTest helper function, so that people can simply call that function and it'll always do the right thing?
My 2 c, -- Giuseppe D'Angelo | giuseppe.dang...@kdab.com | Senior Software Engineer KDAB (France) S.A.S., a KDAB Group company Tel. France +33 (0)4 90 84 08 53, http://www.kdab.com KDAB - Trusted Software Excellence
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