https://bugs.kde.org/show_bug.cgi?id=444231
Bug ID: 444231
Summary: Illegal null property access resulting in `TypeError`s
Product: plasma-systemmonitor
Version: master
Platform: Other
OS: Linux
Status: REPORTED
Severity: minor
Priority: NOR
Component: general
Assignee: ksysguard-b...@kde.org
Reporter: m...@ratijas.tk
CC: ahiems...@heimr.nl, plasma-b...@kde.org
Target Milestone: ---
SUMMARY
When switching pages, loading some of them generates QML/JS `TypeError`s. It
only happens on some pages, and only during first time loading -- I guess after
that they get cached or something.
I took a quick look at the code, but couldn't figure it out immediately, hence
filing a bug for later(tm).
Also, it doesn't seem to break stuff. I think properties eventually receive
intended values during same update cycle of event loop, before they get a
chance to display inconsistency on a screen.
STEPS TO REPRODUCE
1. Launch plasma-systemmonitor.
2. Select pages from the sidebar, one by one.
OBSERVED RESULT
file::/main.qml:25: TypeError: Cannot read property 'title' of null
file::/main.qml:81: TypeError: Value is null and could not be converted to
an object
qrc:/GlobalMenu.qml:32: TypeError: Value is null and could not be converted
to an object
EXPECTED RESULT
No errors
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.23.80
KDE Frameworks Version: 5.88.0
Qt Version: 5.15.2
Kernel Version: 5.14.12-arch1-1 (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-6700HQ CPU @ 2.60GHz
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GTX 970M/PCIe/SSE2
ADDITIONAL INFORMATION
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