dunst/dunstctl
2020-05-01 15:35:23 +02:00

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#!/bin/sh
set -u
DBUS_NAME="org.freedesktop.Notifications"
DBUS_PATH="/org/freedesktop/Notifications"
DBUS_IFAC_DUNST="org.dunstproject.cmd0"
DBUS_IFAC_PROP="org.freedesktop.DBus.Properties"
DBUS_IFAC_FDN="org.freedesktop.Notifications"
die(){ printf "%s\n" "${1}" >&2; exit 1; }
show_help() {
cat <<-EOH
Usage: dunstctl <command> [parameters]"
Commands:
action Perform the default action, or open the
context menu of the notification at the
given position
close Close the last notification
close-all Close the all notifications
context Open context menu
history-pop Pop one notification from history
status Check if
status-set [true|false] Set the status
debug Print debugging information
help Show this help
EOH
}
dbus_send_checked() {
dbus-send "$@"
rc="$?"
if [ "$rc" -eq "1" ]; then
echo "Failed to communicate with dunst, is it running? Or maybe the version is outdated." >&2
echo "Hint: You can try 'dunstctl debug' as a next debugging step." >&2
exit 1
fi
}
method_call() {
dbus_send_checked --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "$@"
}
property_get() {
dbus_send_checked --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "${DBUS_IFAC_PROP}.Get" "string:${DBUS_IFAC_DUNST}" "string:${1}"
}
property_set() {
dbus_send_checked --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "${DBUS_IFAC_PROP}.Set" "string:${DBUS_IFAC_DUNST}" "string:${1}" "${2}"
}
command -v dbus-send >/dev/null 2>/dev/null || \
die "Command dbus-send not found"
case "${1:-}" in
"action")
method_call "${DBUS_IFAC_DUNST}.NotificationAction" "int32:${2:-0}" >/dev/null
;;
"close")
method_call "${DBUS_IFAC_DUNST}.NotificationCloseLast" >/dev/null
;;
"close-all")
method_call "${DBUS_IFAC_DUNST}.NotificationCloseAll" >/dev/null
;;
"context")
method_call "${DBUS_IFAC_DUNST}.ContextMenuCall" >/dev/null
;;
"history-pop")
method_call "${DBUS_IFAC_DUNST}.NotificationShow" >/dev/null
;;
"status")
property_get running | ( read -r _ _ status; printf "%s\n" "${status}"; )
;;
"status-set")
[ "${2:-}" ] \
|| die "No status parameter specified. Please give either 'true' or 'false' as running parameter."
[ "${2}" = "true" ] || [ "${2}" = "false" ] \
|| die "Please give either 'true' or 'false' as running parameter."
property_set running variant:boolean:"${2}"
;;
"help"|"--help"|"-h")
show_help
;;
"debug")
dbus-send --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "${DBUS_IFAC_FDN}.GetServerInformation" >/dev/null 2>/dev/null \
|| die "Dunst is not running."
dbus-send --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "${DBUS_IFAC_FDN}.GetServerInformation" \
| (
read -r name _ version _
[ "${name}" = "dunst" ]
printf "dunst version: %s\n" "${version}"
) \
|| die "Another notification manager is running. It's not dunst"
dbus-send --print-reply=literal --dest="${DBUS_NAME}" "${DBUS_PATH}" "${DBUS_IFAC_DUNST}.Ping" >/dev/null 2>/dev/null \
|| die "Dunst controlling interface not available. Is the version too old?"
;;
"")
die "dunstctl: No command specified. Please consult the usage."
;;
*)
die "dunstctl: unrecognized command '${1:-}'. Please consult the usage."
;;
esac