i3-settree: Add kdialog integration

i3-settree

@@ -97,10 +97,25 @@ step_act() {
 	case "$choice" in
 		Save)
 			file="$treespath/$name-layout-$(date +%s%N).json"
+			if command -v kdialog > /dev/null 2>&1; then
+				# Handle with kdialog
+				newpath="$(kdialog --getsavefilename "$file" "i3 Layout Trees (*.json)")"
+				# Shellcheck you're a dumb
+				# We need that output, man
+				#shellcheck disable=2181
+				if ! [ $? -eq 0 ]; then
+					log "User canceled the save operation"
+					return 61
+				else
+					file="$newpath"
+				fi
+			else
+				# Basic handling
 				if [ -f "$file" ]; then
 					log "Not clobbering existing layout file: $file"
 					return 60
 				fi
+			fi
 			i3-save-tree > "$file"
 			notify-send \
 				-u normal \