100 lines
3.0 KiB
Bash
Executable File
100 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
|
|
|
|
WAYVNCCTL=${WAYVNCCTL:-wayvncctl}
|
|
SWAYMSG=${SWAYMSG:-swaymsg}
|
|
|
|
SWAY_HAS_UNPLUG=false
|
|
IFS=" .-" read -r _ _ SWAYMAJOR SWAYMINOR _ < <($SWAYMSG -v)
|
|
if [[ $SWAYMAJOR -ge 1 && $SWAYMINOR -ge 8 ]]; then
|
|
echo "Detected sway version 1.8 or later: Enabling virtual output device mode"
|
|
SWAY_HAS_UNPLUG=true
|
|
else
|
|
echo "Detected sway version 1.7 or earlier: Not enabling virtual output device mode"
|
|
fi
|
|
|
|
find_output_matching() {
|
|
local pattern=$1
|
|
$WAYVNCCTL -j output-list | jq -r ".[].name | match(\"$pattern\").string"
|
|
}
|
|
|
|
wait_for_output_matching() {
|
|
local pattern=$1
|
|
local output
|
|
output=$(find_output_matching "$pattern")
|
|
while [[ -z $output ]]; do
|
|
sleep 0.5
|
|
output=$(find_output_matching "$pattern")
|
|
done
|
|
echo "$output"
|
|
}
|
|
|
|
OUTPUTS_TO_RECONNECT=()
|
|
HEADLESS=
|
|
restore_outputs() {
|
|
[[ ${#OUTPUTS_TO_RECONNECT[@]} -ge 1 ]] || return
|
|
echo "Restoring original output state"
|
|
for output in "${OUTPUTS_TO_RECONNECT[@]}"; do
|
|
echo "Re-enabling output $output"
|
|
$SWAYMSG output "$output" enable
|
|
done
|
|
if [[ $SWAY_HAS_UNPLUG == true && $HEADLESS ]]; then
|
|
local firstOutput=${OUTPUTS_TO_RECONNECT[0]}
|
|
echo "Switching wayvnc back to physical output $firstOutput"
|
|
wait_for_output_matching "$firstOutput" >/dev/null
|
|
$WAYVNCCTL output-set "$firstOutput"
|
|
echo "Removing virtual output $HEADLESS"
|
|
$SWAYMSG output "$HEADLESS" unplug
|
|
fi
|
|
OUTPUTS_TO_RECONNECT=()
|
|
HEADLESS=
|
|
}
|
|
trap restore_outputs EXIT
|
|
|
|
collapse_outputs() {
|
|
if [[ $SWAY_HAS_UNPLUG == true ]]; then
|
|
local preexisting="$(find_output_matching 'HEADLESS-\\d+')"
|
|
if [[ $preexisting ]]; then
|
|
echo "Switching to preexisting virtual output $preexisting"
|
|
$WAYVNCCTL output-set "$preexisting"
|
|
else
|
|
echo "Creating a virtual display"
|
|
$SWAYMSG create_output
|
|
echo "Waiting for virtusl output to be created..."
|
|
HEADLESS=$(wait_for_output_matching 'HEADLESS-\\d+')
|
|
echo "Switching to virtual output $HEADLESS"
|
|
$WAYVNCCTL output-set "$HEADLESS"
|
|
fi
|
|
fi
|
|
for output in $($WAYVNCCTL -j output-list | jq -r '.[] | select(.captured==false).name'); do
|
|
echo "Disabling extra output $output"
|
|
$SWAYMSG output "$output" disable
|
|
OUTPUTS_TO_RECONNECT+=("$output")
|
|
done
|
|
}
|
|
|
|
connection_count_now() {
|
|
local count=$1
|
|
if [[ $count == 1 ]]; then
|
|
collapse_outputs
|
|
elif [[ $count == 0 ]]; then
|
|
restore_outputs
|
|
fi
|
|
}
|
|
|
|
while IFS= read -r EVT; do
|
|
case "$(jq -r '.method' <<<"$EVT")" in
|
|
client-*onnected)
|
|
count=$(jq -r '.params.connection_count' <<<"$EVT")
|
|
connection_count_now "$count"
|
|
;;
|
|
wayvnc-shutdown)
|
|
echo "wayvncctl is no longer running"
|
|
connection_count_now 0
|
|
;;
|
|
wayvnc-startup)
|
|
echo "Ready to receive wayvnc events"
|
|
;;
|
|
esac
|
|
done < <("$WAYVNCCTL" --wait --reconnect --json event-receive)
|
|
|