# Put this file into ~/.fgfs/Nasal/, *not* into $FG_ROOT/Nasal/!

var state = 0;
var text = nil;

setlistener("/devices/status/keyboard/event", func(event) {
	#debug.tree(event);
	if (!event.getNode("pressed").getValue())
		return;
	var key = event.getNode("key").getValue();
	if (state == 1) {
		if (key == `\n` or key == `\r`) {
			screen.log.write(text);
			state = 0;
		} elsif (key == 27) {       # escape -> cancel
			state = 0;
		} elsif (key == 8) {        # backspace
			text = substr(text, 0, size(text) - 1);
		} else {
			text ~= chr(key);
		}
		gui.popupTip(text, 2);
	} elsif (key == `~`) {
		text = "";
		state = 1;
		gui.popupTip("> ", 2);
	} else {
		return;                     # pass key event
	}
	event.getNode("key").setValue(0);   # drop key event
});