Util : Add _twice.

module/common/bash/module/Util.sh

@@ -132,7 +132,22 @@ function _bell() {
 	echo -e '\a'
 }
 
+# Get users.
 function _get_users() {
 	local users=("voronind" "dasha")
 	echo ${users[@]}
 }
+
+# Force the command to be called twice within the specified period in seconds. Used primarily in important keyboard shortcuts like poweroff.
+# Usage: _twice <PERIOD> <COMMAND>
+function _twice() {
+	local IFS=$'\n'
+	local file="/tmp/.twice"
+	local period=${1}
+	local command="${@:2}"
+
+	[[ "$(cat ${file} 2> /dev/null)" = "${command}" ]] && ${command}
+	echo "${command}" > "${file}"
+	sleep ${period}
+	rm "${file}" 2> /dev/null
+}

module/sway/module/20-Keybind

@@ -18,8 +18,8 @@ floating_modifier $mod normal
 bindsym $mod+Shift+c reload
 
 # Exit sway (logs you out of your Wayland session).
-bindsym $mod+z exec 'swaylock -F -c 000000 -k --font "SF Pro Display Medium" --font-size 14'
+bindsym $mod+z exec '_twice 1 swaylock -F -c 000000 -k --font "SF Pro Display Medium" --font-size 14'
-bindsym $mod+Shift+z exec 'swaymsg exit'
+bindsym $mod+Shift+z exec '_twice 1 swaymsg exit'
 
 # Show last notification.
 bindsym $mod+n exec makoctl restore
@@ -33,6 +33,3 @@ bindsym XF86MonBrightnessUp   exec light -A 10
 bindsym XF86AudioRaiseVolume exec 'pactl set-sink-volume @DEFAULT_SINK@ +1%'
 bindsym XF86AudioLowerVolume exec 'pactl set-sink-volume @DEFAULT_SINK@ -1%'
 bindsym XF86AudioMute        exec 'pactl set-sink-mute   @DEFAULT_SINK@ toggle'
-
-# Lock screen
-bindsym $mod+z exec 'swaylock -k -c 000000'