class StatusText: TextBlock {
    activeColor: String

    function activate(self: StatusText, event: Event): Unit {
        self.setText("继承的原生文本已更新")
        self.setColor(self.activeColor)
    }
}

class CustomStatus: StatusText {
    message: String

    function activate(self: CustomStatus, event: Event): Unit {
        TextBlock.setText(self, self.message)
        self.setColor(self.activeColor)
    }
}

class ActionButton: Button {
    target: Block

    function activate(self: ActionButton, event: Event): Unit {
        self.target.activate(event)
    }
}

class CustomPage: Page {
    caption: String
}

label = CustomStatus("点击按钮更新同一个自定义文本对象", 2, "#242422", "#237A45", "源码子类与原生载荷共同工作")
button = ActionButton("调用源码子类方法", label)
button.onClick(button.activate)
page = CustomPage("Endor 原生类型的源码继承")
page.render(Column(24, 16, TextBlock(page.caption, 2), label, label, button, ui.textOf(label, "message")))