https://bugs.kde.org/show_bug.cgi?id=384979
Bug ID: 384979
Summary: Task manager's "Highlight windows" option is not
working well when many windows are open
Product: plasmashell
Version: 5.10.5
Platform: Other
OS: Linux
Status: UNCONFIRMED
Severity: normal
Priority: NOR
Component: Task Manager
Assignee: h...@kde.org
Reporter: fe...@bioinf.uni-leipzig.de
CC: plasma-b...@kde.org
Target Milestone: 1.0
Created attachment 107959
--> https://bugs.kde.org/attachment.cgi?id=107959&action=edit
Screenshot demonstrating the cluttered visuals
The "Highlight windows" option of the task manager is supposed to present the
user a preview of a window when hovering the mouse cursor on the window's icon
in the task manager widget. This is working well for the window lying on top of
all other windows: it is raised and the other windows turn translucent while
the user hovers the top window's icon.
If the user, however, points his cursor on a window which is covered by other
window(s), the covering window(s) turn translucent, but since they remain
partially visible, the readability of the selected window is impaired. This
might not be a problem for two or three windows, but when opening e.g. six pdf
files the visuals become so cluttered that one cannot even recognize which
window is currently selected, let alone reading the window content.
Reproducability: always
Steps to reproduce:
1) Right-click the task manager widget, select settings -> General and tick
"Highlight windows".
2) Open about 6--10 windows, ideally with different content, e.g. pdf files,
jpegs, etc.
3) Arrange them such that most of the windows overlap.
4) Hover the cursor over different application icons in the task manger. The
selected window will be shown, but covering windows will be displayed in a
translucent manner and impair the selected window's readability.
Proposed solution:
When hovering a window, it should -- temporary, while the user keeps hovering
-- be raised to the top. No translucent windows should be drawn on top of it.
The translucency effect may still be used for the areas not covered by the
hovered window.
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