https://bugs.kde.org/show_bug.cgi?id=443176
Bug ID: 443176
Summary: Moving mouse up and sideways to click on a grouped app
preview can trigger adjacent icons
Product: plasmashell
Version: 5.22.90
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: Task Manager and Icons-Only Task Manager
Assignee: h...@kde.org
Reporter: nyanpas...@tuta.io
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 142051
--> https://bugs.kde.org/attachment.cgi?id=142051&action=edit
Recording of me triggering accidental app preview switching
SUMMARY
If I hover a grouped app to trigger 3+ preview icons, then move the mouse
towards a side app preview, and if the mouse intersects another app icon, the
preview switches to that app.
STEPS TO REPRODUCE
1. Open 3 windows of one app.
2. Hover the app icon in the task switcher.
3. Move the mouse towards a side window.
OBSERVED RESULT
If my mouse trajectory intersects an icon on the side, and if on any frame, the
mouse's current position lies on another icon, the previews switch to that
app's windows.
(If your mouse moves *down* from the preview towards the app icon, the same
thing can happen. However I'm not sure if this is something users do often.)
EXPECTED RESULT
Add a delay or a triangle filter (like Bug 434904) for switching apps in the
task manager.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.22.90
KDE Frameworks Version: 5.86.0
Qt Version: 5.15.2
Kernel Version: 5.14.8-zen1-1-zen (64-bit)
Graphics Platform: X11
Processors: 12 × AMD Ryzen 5 5600X 6-Core Processor
Memory: 15.6 GiB of RAM
Graphics Processor: NVIDIA GeForce GT 730/PCIe/SSE2
ADDITIONAL INFORMATION
I believe Windows 10 uses a delay before switching app previews.
Adding a delay for switching hovers may solve Bug 439363 as well. But oddly
enough, when you hover an multi-window icon on the second row of the taskbar,
Windows 10 displays the app previews *above* the entire taskbar on hover, but
moves it down to *above the second row* on click. However, on KDE, clicking an
app defaults to cycling its windows, so "moving on click" isn't achievable.
However I think a delay is a good enough solution.
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