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dotfiles/.config/polybar/scripts/task_manager

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#!/usr/bin/env bash
STATUS_FILE=/dev/shm/polybar_task_manager
REFRESH=2
MAX_TASKS=10
get_icon_by_name()
{
name=$(echo "$1" | tr '[:upper:]' '[:lower:]')
declare -A ICON_MAP=(
[tilix]=
[code]=
[firefox]=
[chromium]=
[nautilus]=
[gnome-calculator]=
[gnome-calendar]=
[eog]=
[keepassxc]=
)
if [ ${ICON_MAP[$name]+_} ]; then
echo "${ICON_MAP[$name]}"
fi
}
show_tasks()
{
wmctrl -lx | awk '{if ($2 > -1) print $3,$1}' \
| awk -F'.' '{ print $NF }' \
| tail -$MAX_TASKS | sort > $STATUS_FILE.current
diff -q $STATUS_FILE $STATUS_FILE.current > /dev/null 2>&1
if [ $? -ne 1 ]; then
rm -rf $STATUS_FILE.current
return 0
fi
mv $STATUS_FILE.current $STATUS_FILE
counter=1
num_windows=$(wc -l $STATUS_FILE | cut -f 1 -d " ")
while [ $counter -le "$MAX_TASKS" ]; do
if [ $counter -le "$num_windows" ]; then
polybar-msg hook taskbar$counter 2 > /dev/null
else
polybar-msg hook taskbar"$counter" 1 > /dev/null
fi
sleep 0.1
counter=$((counter+1))
done
}
print_task_name()
{
name=$(sed "${1}q;d" $STATUS_FILE | cut -f 1 -d " " | tr '[:upper:]' '[:lower:]')
icon=$(get_icon_by_name "$name")
if [ -n "$icon" ]; then
name="$name "
fi
printf "%s%s" "${name^}" "$icon"
}
get_task_id()
{
sed "${1}q;d" $STATUS_FILE | cut -f 2 -d " "
}
daemon()
{
while true; do
show_tasks
sleep $REFRESH
done
}
case "$1" in
--daemon)
> /dev/shm/polybar_task_manager
daemon
;;
--set-task)
print_task_name "$2"
;;
--show-window)
id=$(get_task_id "$2")
wmctrl -ia "$id"
print_task_name "$2"
;;
--close-window)
id=$(get_task_id "$2")
wmctrl -ic "$id"
;;
esac
exit 0