在godot中监听iframe父消息

Question

我正在尝试在 iframe 游戏窗口中监听来自家长的消息。

以下代码可能是正确的方法吗？

func _ready():
  var window = JavaScriptBridge.get_interface("window")

  var callback = JavaScriptBridge.create_callback(on_message_received)
  window.addEventListener("message", callback)

func on_message_received(event):
    print("Message received in godot. ")

实际上这不起作用（函数 on_message_received 未触发），但以下代码起作用：

JavaScriptBridge.eval("
    window.addEventListener('message', (event) => {
               console.log('LISTEN')
            })
    ")

Answer 1

我已经修复了它，将回调的定义移动为我的脚本的属性，这样它就不会被释放。

var callback = JavaScriptBridge.create_callback(on_message_received)

func _ready():
  var window = JavaScriptBridge.get_interface("window")

  window.addEventListener("message", callback)

func on_message_received(event):
    print("Message received in godot. ")