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62 lines
1.4 KiB
62 lines
1.4 KiB
#!/usr/bin/env bash
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set -o errexit
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set -o pipefail
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main() {
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export RUNNING_AS="${RUNNING_AS:-dan}"
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RUNNING_AS_ID="$(id -u "${RUNNING_AS}")"
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export RUNNING_AS_ID
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export XINPUT_EXE="${XINPUT_EXE:=xinput}"
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export XAUTHORITY="/run/user/${RUNNING_AS_ID}/gdm/Xauthority"
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export DBUS_SESSION_BUS_ADDRESS="unix:path=/run/user/${RUNNING_AS_ID}/bus"
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: "${DISPLAY:=0}"
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export DISPLAY
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export HOME="/home/${RUNNING_AS}"
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local device_id
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device_id="$(__get_device_id)"
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local natscroll_enabled
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natscroll_enabled="$(
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__get_prop_id "${device_id}" 'Natural Scrolling Enabled'
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)"
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local scrollmeth_enabled
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scrollmeth_enabled="$(
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__get_prop_id "${device_id}" 'Scroll Method Enabled'
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)"
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local scrollbutton
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scrollbutton="$(
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__get_prop_id "${device_id}" 'Button Scrolling Button'
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)"
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__run_xinput_as set-prop "${device_id}" "${natscroll_enabled}" 1
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__run_xinput_as set-prop "${device_id}" "${scrollmeth_enabled}" 0 0 1
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__run_xinput_as set-prop "${device_id}" "${scrollbutton}" 8
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}
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__get_device_id() {
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__run_xinput_as list |
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awk '/Logitech USB Trackball/ { sub(/id=/, "", $6); print $6 }'
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}
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__get_prop_id() {
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local device_id="${1}"
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local propmatch="${2}"
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__run_xinput_as list-props "${device_id}" |
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awk -F: '/'"${propmatch}"' \([0-9]+\)/ {
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sub(/.+\(/, "", $1);
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sub(/\).*/, "", $1);
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print $1;
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}'
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}
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__run_xinput_as() {
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sudo -E -u "${RUNNING_AS}" "${XINPUT_EXE}" "${@}"
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}
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main "${@}"
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