https://bugs.kde.org/show_bug.cgi?id=492484
Bug ID: 492484
Summary: Dialog windows for Wayland on a single 4K monitor have
same size & position as parent window, and unable to
set separate Kwin rules per ‘Window matching’ rules
settings
Classification: Plasma
Product: kwin
Version: 6.1.4
Platform: openSUSE
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: rules
Assignee: kwin-bugs-n...@kde.org
Reporter: pvdve...@posteo.net
CC: isma...@gmail.com
Target Milestone: ---
SUMMARY
Setting Kwin rules for size and position for any application, regardless of it
being a flatpak, GTK or Qt app results in all dialog or popup windows
inheriting the same size and position on the Wayland desktop. Trying to create
separate window rules for the dialog windows for a different size & position
compared to the parent window will either have no effect or interferes with the
rules for the parent window regardless of which ‘Window matching’ rules you
attempt to use.
STEPS TO REPRODUCE
1. Set 150% for the resolution for a single 4K monitor.
2. R-click on the title bar for an app, such as Okular and select 'More
Actions' -> 'Configure Special Window Settings ...'
3. Leave the ‘Window matching’ rules section at their default selections: e.g.
‘Window class’ is 'Exact Match' for ‘okular org.kde.okular’ and ‘Match whole
window class’ is 'Yes', with ‘Window types’ set as normal window only.
4. Add the size and position as extra Kwin rules.
5. Close and reopen Okular to ensure that the settings are working.
6. Select 'Save As' for the open document and observe that the dialog window
has the same size and position as the parent window.
7. Resize the ‘Save As’ dialog window and open the ‘Window Rules’ system
settings.
8. Choose the ‘Add new’ and then use the ‘Detect window settings’ option,
clicking on the title bar for the ‘Save As’ dialog window. Add description -
e.g. Okular Save As; ‘Window class’ as Exact Match for ‘org.kde.okular’; ’Match
whole window class' as ‘Yes’; ‘Window types’ set to ‘Dialog Window’; ‘Window
role’ as ‘Exact Match’ with the field to the right being blank by default;
‘Window title’ as ‘Exact Match’ with the field to the right pre-filled as ‘Save
As - Okular’. Then also add the ‘Position’ and ‘Size’ properties and save.
9. The new window rule appears down the bottom of the list of window rules.
Move it up above the rule set previously for Okular.
OBSERVED RESULT
After closing and reopening Okular the main window size and position is
correct, but when choosing ‘Save As’ the dialog window again has the same size
and position as the main window.
EXPECTED RESULT
The dialog window opens with the size and position that was set in the new
'Save As' window rule, smaller than the main dialog window.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: openSUSE Tumbleweed
KDE Plasma Version: 6.1.4 (Wayland)
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
ADDITIONAL INFORMATION
Similar, but not the same as bug 487001 or bug 460628
Sorry, I'm not exactly sure how the different Window matching’ rules choices
affect things as the ‘Help’ documentation did not explain properly for the
situation of a dialog window.
When deleting the new rule for ‘Save As’ and trying again it does not seem to
matter what choices are made as no separate window rule can be created to
provide a smaller window as desired.
All dialog windows for all the applications have the same issue. Some
applications such as Dolphin have their previouslyy created special window
rules “corrupted” when trying to create window rules for their dialog windows,
and lose their size and position settings - opening in the default 'centre' of
the screen as a result.
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