https://bugs.kde.org/show_bug.cgi?id=416319
Bug ID: 416319
Summary: forceActiveWindow() function raises window but may not
give it focus.
Product: frameworks-kwindowsystem
Version: 5.65.0
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kdelibs-b...@kde.org
Reporter: i...@xuzhao.net
Target Milestone: ---
Created attachment 125159
--> https://bugs.kde.org/attachment.cgi?id=125159&action=edit
The screenshot showing the specified window is not getting focus
SUMMARY
I discover this bug when developing a simple KRunner extension that switches
windows on Plasma.
In this extension, I use forceActiveWindow(Wid w) call to raise and focus a
window, see
https://github.com/xuzhao9/krunner-switcher/blob/master/src/switcher.cpp#L135
This function call successfully returns, the window specified in argument
always raises, but may not get focus (non-deterministic).
STEPS TO REPRODUCE
1. Install the krunner-switcher plugin of KRunner
2. Use KRunner to activate a window
OBSERVED RESULT
The specified window is activated and gets focus.
EXPECTED RESULT
The specified window is raised to the front, but may not get focus (the old
window keeps focus). If you call activeWindow() at this moment, it returns the
new window, i.e., the one specified in the argument of forceActiveWindow().
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: openSUSE Tumbleweed 20200113
KDE Plasma Version: 5.17.5
KDE Frameworks Version: 5.65.0
Qt Version: 5.13.1
ADDITIONAL INFORMATION
This bug is non-deterministic. You may need to try it multiple times to
reproduce it.
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