[i3] rename.sh that can rename back to empty

i3/config

@@ -396,9 +396,7 @@ mode "workspace" {
 
 bindsym $mod+s mode workspace
 
-bindsym $mod+shift+S exec i3-input -F \
+bindsym $mod+shift+S exec $HOME/.config/i3/rename.sh
-	'rename workspace to "'$(i3-msg -t get_workspaces | jq '.[] | select(.focused==true).num')': %s"' \
-	-P 'Rename workspace to '$(i3-msg -t get_workspaces | jq '.[] | select(.focused==true).num')': '
 
 
 # Monitor stuff {{{2

i3/rename.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+cur_ws="$(i3-msg -t get_workspaces | jq '.[] | select(.focused==true)')"
+cur_ws_number="$(echo "$cur_ws" | jq '.num')"
+
+cur_ws_name="$(echo "$cur_ws" | jq --raw-output '.name')"
+# Strip workspace number from name
+if [[ $cur_ws_name == [0-9] ]]; then
+	cur_ws_name=""
+else
+	cur_ws_name="${cur_ws_name#[0-9]:}"
+	cur_ws_name="${cur_ws_name# }"
+fi
+
+newname="$(
+	rofi -dmenu \
+		-p "rename workspace $cur_ws_number:" ||
+	echo "$cur_ws_name"
+)"
+
+echo "renaming to \`$newname\`"
+
+if [[ -z $newname ]]; then
+	i3-msg "rename workspace to \"$cur_ws_number\""
+else
+	i3-msg "rename workspace to \"$cur_ws_number: ${newname//"/\\"}\""
+fi