56 lines
1 KiB
Bash
Executable file
56 lines
1 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Locks the screens and lowers-brightness. Restores brightness on unlock
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# Defaults for levels when restored
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declare light_restore=3
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declare ddc_restore=3
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# Levels when dimmed
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declare -ri light_dim=1
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declare -ri ddc_dim=1
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get_brightness() {
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local lvl
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if command -v light &>/dev/null; then
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lvl="$(light -G)"
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if [[ $lvl =~ ^[0-9]+(\.[0-9]+)?$ ]]; then
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light_restore="$lvl"
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fi
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fi
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if command -v ddcutil &>/dev/null; then
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lvl="$(ddcutil getvcp 10 | awk '{
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gsub(" ",""); # Remove spaces
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split($0, a, "=");
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split(a[2], a, ","); print a[1]
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}')"
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if [[ $lvl =~ ^[0-9]+$ ]]; then
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ddc_restore="$lvl"
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fi
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fi
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}
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set_brightness() {
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local -r light_lvl="$1"
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local -r ddc_lvl="$2"
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if command -v light &>/dev/null; then
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light -S "$light_lvl"
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fi
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if command -v ddcutil &>/dev/null; then
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ddcutil setvcp 10 "$ddc_lvl"
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fi
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}
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swaylock &
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get_brightness
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set_brightness $light_dim $ddc_dim
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wait %swaylock
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set_brightness $light_restore $ddc_restore
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