88 lines
2.2 KiB
Plaintext
Executable File
88 lines
2.2 KiB
Plaintext
Executable File
#!/usr/bin/env nix-shell
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#!nix-shell -i bash -p jq -p sway -p util-linux
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help() {
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echo "queries the focused window and apply an appropriate display-wide scale."
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echo "this should be considered a temporary workaround until more apps support small displays."
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echo ""
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echo "args:"
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echo " -v | --verbose"
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echo " --loop-sec N: re-compute the scale every N seconds. else, run once and exit."
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echo ""
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echo "environment variables:"
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echo " SWAY_DEFAULT_SCALE=N: scale to apply when no known window is selected."
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# TODO: could use map-style environment variables to allow external per-app config
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# - SWAY_SCALE_org.gnome.Maps=1 ; ...
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}
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options=$(getopt -l h,loop-sec:,verbose -o h,v -- "" "${@}")
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eval "set -- ${options}"
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verbose=false
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loop=false
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loop_sec=
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while true; do
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case "$1" in
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(-h|--help)
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shift
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help
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exit
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;;
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(--loop-sec)
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shift
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loop=true
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loop_sec="$1"
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shift
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;;
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(-v|--verbose)
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shift
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verbose=true
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;;
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(--)
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shift
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if [ $# -eq 1 ]; then
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break
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fi
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;;
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(*)
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echo "invalid arguments: '$1'"
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echo ""
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help
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exit 1
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;;
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esac
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done
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autoscale() {
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focused=$(swaymsg -t get_tree | jq --raw-output '.. | select(.type?) | select(.focused==true) | .app_id')
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$verbose && echo "focused: '$focused'"
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scale=${SWAY_DEFAULT_SCALE:-1}
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case "$focused" in
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(org.gnome.Maps)
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# scale=1.6: 3 turns visible at once in landscape
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# scale=1.25: max scale at which no text/menuitems are cutoff in vertical mode
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# 5 turns visible at once in landscape
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# scale=1.2: max of 6 turns visible at once in landscape
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# scale=1.1: max of 7 turns visible at once in landscape
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# scale=1: max of 8 turns visible at once in landscape
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#
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# as scale is increased past 1.1, vertical mode becomes substantially less usable
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# as scale is decreased past 1.3, the whole desktop UI becomes less usable (keyboard, workspaces)
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scale=1.2
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;;
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esac
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$verbose && echo "scaling to $scale"
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swaymsg -q -- output '*' scale "$scale"
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}
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if $loop; then
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while true; do
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autoscale
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sleep "$loop_sec"
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done
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else
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autoscale
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fi
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