SUMMARY In RTL mode Task Manager correctly lays out icons from right to left, but mouse filtering does not work at all. STEPS TO REPRODUCE 1. Start Plasma with some Arabic language, e.g. LANGUAGE=ar:en_US LANG=ar_EG.UTF-8 LC_ALL= plasmashell --replace 2. Open multiple windows of the same app. 3. Hover over app and move cursor in a straight line to the window thumbnail on the left or right of it, so that cursor crosses over some other item for a split second on its path. OBSERVED RESULT Mouse filtering does not work, other app gets the hover, tooltip with thumbnails disappear. EXPECTED RESULT Mouse filtering should work and be consistent with LTR (Left-to-Right) layout direction. SOFTWARE/OS VERSIONS Operating System: Arch Linux KDE Plasma Version: 5.27.4 KDE Frameworks Version: 5.106.0 Qt Version: 5.15.9 Kernel Version: 6.2.12-arch1-1 (64-bit) Graphics Platform: X11
Urgh.
The issue can also be reproduced when the option "New tasks appear: To the right" is enabled, even without an RTL language. A vertical panel layout is also affected. I might be able to look into this.
Created attachment 170343 [details] mouse movement I can't seem to be able to reproduce the bug: this screenshot is the plasma running with --reverse and trying to move the mouse following the red arrow, the tooltip does not disappear, what i'm i missing?
That exact thing is failing for me in `LANGUAGE=ar_AR plasmashell --replace` with a horizontal panel and two Dolphin windows.
ok, i can partially reproduce with ar_AR, the tooltip gets broken only when doing the triangular motion to the right, while doing it to the left the tooltip stays
Created attachment 170366 [details] triangle filter more or less working with ar here (on master, x11) the triangle filter more or less working with ar_AR it seems to work more or less fine, not always triggered with the mouse movements on the screencast, but on the real world works just fine
(In reply to Marco Martin from comment #6) > here (on master, x11) the triangle filter more or less working with ar_AR in Wayland as well the triangle filter seems to be ok, this with Qt 6.8
Maybe it's fixed with a later Qt version? FWIW I am also having trouble reproducing the issue, here with Qt 6.7.1. Ivan, can you still reproduce the issue as originally described with a recent Qt version?
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
The bug is totally valid, and now I see why. It happens non-deterministically due to QtQuick/QML binding loops, so sometimes TriangleMouseFilter is getting stuck not covering all the Task Manager tasks. When that happens, of course the filter can not filter the events outsize its area. On my setup with an RTL locale it happens most of the time, and when it does — the TriangleMouseFilter is missing one left-most icon.