mapcomplete/UI/Base/LazyElement.ts
2020-12-05 03:22:17 +01:00

30 lines
No EOL
646 B
TypeScript

import {UIElement} from "../UIElement";
export default class LazyElement extends UIElement {
private _content: UIElement = undefined;
public Activate: () => void;
constructor(content: (() => UIElement)) {
super();
this.dumbMode = false;
const self = this;
this.Activate = () => {
if (this._content === undefined) {
self._content = content();
}
self.Update();
}
}
InnerRender(): string {
if (this._content === undefined) {
return "Rendering...";
}
return this._content.InnerRender();
}
}