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Classroom_Desktop/config/plasma/xdg/kwinrulesrc
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ekklesiaandClaude Opus 5 87b55761c6 feat: give the classroom a desktop instead of a shell
The whole appliance UI is now configuration for a desktop Debian already
ships: a Plasma 6.3 session with a colour scheme, a look and feel package
that builds the bar, window rules, and KDE's own Kiosk restrictions.

Two things were measured rather than assumed, and both changed a decision.

Plasma restarts a crashed panel three times a minute and then gives up,
which is the failure a classroom has already had. Four lines of systemd
drop-in make it unconditional; the panel then survived eight SIGKILLs a
second apart, back each time in 2.4s.

Plasma draws a minimised task and a background task identically, so the
five states the room needs cannot all be shown. Rather than write a task
manager, the classroom removes minimise: clicking a launcher always means
show me this.

Co-Authored-By: Claude Opus 5 <[email protected]>
2026-09-10 08:35:12 -05:00

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# Window rules.
#
# There are three, they are all about size, and none of them is about
# stacking. Dialogs staying in front of the window that opened them,
# secondary windows floating over the main one instead of resizing it, and
# a print dialog being the window in front are all ordinary window-manager
# behaviour here, so there is nothing to write down.
#
# `types=1` is NET::Normal only. Without it a rule that maximises would
# also maximise the dialogs, which is exactly the behaviour the classroom
# is moving away from.
[General]
count=3
rules=classroom-browser,classroom-wonderink,classroom-video
[classroom-browser]
Description=The classroom browser fills the screen
wmclass=google-chrome
wmclassmatch=1
wmclasscomplete=false
types=1
maximizehoriz=true
maximizehorizrule=3
maximizevert=true
maximizevertrule=3
[classroom-wonderink]
Description=Wonder Ink fills the screen
# Chrome derives this from the --app URL. Measured on a running session
# rather than guessed; it is also what the launcher's StartupWMClass says,
# and the two have to agree or the panel shows two buttons for one app.
wmclass=chrome-app.wonderink.org__-Default
wmclassmatch=1
wmclasscomplete=false
types=1
maximizehoriz=true
maximizehorizrule=3
maximizevert=true
maximizevertrule=3
[classroom-video]
Description=Video is an appliance screen, not a window
wmclass=vlc
wmclassmatch=2
wmclasscomplete=false
noborder=true
noborderrule=2