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ref: 2da1dde5ea566f82ebe6532bc6d3b8670fd77ce8 dotfiles/i3/.local/share/i3/i3lock.sh -rw-r--r-- 1.4 KiB
2da1dde5Greg Anders Note 'open' subcommand opens editor in NOTES_DIR when no argument given 1 year, 3 months ago
                                                                                
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#!/bin/bash

# Example locker script -- demonstrates how to use the --transfer-sleep-lock
# option with i3lock's forking mode to delay sleep until the screen is locked.

## CONFIGURATION ##############################################################

# Options to pass to i3lock
tmp=$(mktemp --dry-run --tmpdir tmp.XXXXXXXXXX.png)
i3lock_options="--dpms --ignore-empty-password --image $tmp --tiling"

# Run before starting the locker
pre_lock() {
    bg=$(awk '/^feh/ {print $(NF)}' ~/.fehbg | tr -d "'")
    cp -f "$bg" "$tmp"
    return
}

# Run after the locker exits
post_lock() {
    rm -f "$tmp"
    return
}

###############################################################################

pre_lock

# We set a trap to kill the locker if we get killed, then start the locker and
# wait for it to exit. The waiting is not that straightforward when the locker
# forks, so we use this polling only if we have a sleep lock to deal with.
if [[ -e /dev/fd/${XSS_SLEEP_LOCK_FD:--1} ]]; then
    kill_i3lock() {
        pkill -xu $EUID "$@" i3lock
    }

    trap kill_i3lock TERM INT

    # we have to make sure the locker does not inherit a copy of the lock fd
    i3lock $i3lock_options {XSS_SLEEP_LOCK_FD}<&-

    # now close our fd (only remaining copy) to indicate we're ready to sleep
    exec {XSS_SLEEP_LOCK_FD}<&-

    while kill_i3lock -0; do
        sleep 0.5
    done
else
    trap 'kill %%' TERM INT
    i3lock -n $i3lock_options &
    wait
fi

post_lock