class_name BasePopup
extends Control
## A window shown on top of the main window, such as Settings or About.
##
## Clicking outside [member panel] closes it. Popups that need to prepare or clean up
## override [method open] or [method close] and call [code]super()[/code].

## The visible part of the popup. Clicks outside it close the popup.

@export var panel: Control


## Shows the popup.
func open() -> void:
	visible = true


## Hides the popup.
func close() -> void:
	visible = false


## Opens the popup if it is closed and closes it if it is open.
func toggle() -> void:
	if visible:
		close()
	else:
		open()


func _input(event: InputEvent) -> void:
	if !visible || !(event is InputEventMouseButton) || !event.pressed:
		return
	var click: InputEventMouseButton = panel.make_input_local(event)
	if !Rect2(Vector2.ZERO, panel.size).has_point(click.position):
		close()
		# The click only closes the popup; it must not also press what is behind it
		get_viewport().set_input_as_handled()