79 lines
1.7 KiB
TypeScript
79 lines
1.7 KiB
TypeScript
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import React from 'react';
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interface IProps {
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/** The View class, which will be instantiated then treated like a Backbone View */
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readonly View: IBackboneViewConstructor;
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/** Options to be passed along to the view when constructed */
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readonly options: object;
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}
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interface IBackboneView {
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remove: () => void;
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render: () => void;
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el: HTMLElement;
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}
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interface IBackboneViewConstructor {
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new (options: object): IBackboneView;
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}
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/**
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* Allows Backbone Views to be rendered inside of React (primarily for the styleguide)
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* while we slowly replace the internals of a given Backbone view with React.
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*/
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export class BackboneWrapper extends React.Component<IProps, {}> {
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protected el: Element | null;
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protected view: IBackboneView | null;
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protected setEl: (element: HTMLDivElement | null) => void;
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constructor(props: IProps) {
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super(props);
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this.el = null;
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this.view = null;
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this.setEl = (element: HTMLDivElement | null) => {
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this.el = element;
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this.setup();
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};
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this.setup = this.setup.bind(this);
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}
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public setup() {
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const { el } = this;
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const { View, options } = this.props;
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if (!el) {
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return;
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}
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this.view = new View(options);
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this.view.render();
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// It's important to let the view create its own root DOM element. This ensures that
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// its tagName property actually takes effect.
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el.appendChild(this.view.el);
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}
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public teardown() {
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if (!this.view) {
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return;
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}
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this.view.remove();
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this.view = null;
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}
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public componentWillUnmount() {
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this.teardown();
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}
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public shouldComponentUpdate() {
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// we're handling all updates manually
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return false;
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}
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public render() {
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return <div ref={this.setEl} />;
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}
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}
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