62 lines
1.9 KiB
JavaScript
62 lines
1.9 KiB
JavaScript
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import ReactDOM from 'react-dom';
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// This attribute holds the name of component which should be mounted
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// example: `data-react-class="MyApp.Items.EditForm"`
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const CLASS_NAME_ATTR = 'data-react-class';
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// This attribute holds JSON stringified props for initializing the component
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// example: `data-react-props="{\"item\": { \"id\": 1, \"name\": \"My Item\"} }"`
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const PROPS_ATTR = 'data-react-props';
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// This attribute holds which method to use between: ReactDOM.hydrate, ReactDOM.render
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const RENDER_ATTR = 'data-hydrate';
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function findDOMNodes() {
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return document.querySelectorAll(`[${CLASS_NAME_ATTR}]`);
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}
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export default class ReactUJS {
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constructor(loadComponent) {
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this.loadComponent = loadComponent;
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}
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async mountComponents() {
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const nodes = findDOMNodes();
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for (let node of nodes) {
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const className = node.getAttribute(CLASS_NAME_ATTR);
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const createReactUJSElement = await this.loadComponent(className).catch(
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() => null
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);
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if (!createReactUJSElement) {
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const message = "Cannot find component: '" + className + "'";
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// eslint-disable-next-line no-console
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console.error(
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'%c[react-rails] %c' + message + ' for element',
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'font-weight: bold',
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'',
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node
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);
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throw new Error(
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message + '. Make sure your component is available to render.'
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);
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} else {
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const propsJson = node.getAttribute(PROPS_ATTR);
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const props = propsJson && JSON.parse(propsJson);
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const hydrate = node.getAttribute(RENDER_ATTR);
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if (hydrate && typeof ReactDOM.hydrate === 'function') {
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ReactDOM.hydrate(createReactUJSElement(props), node);
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} else {
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ReactDOM.render(createReactUJSElement(props), node);
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}
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}
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}
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}
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start() {
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addEventListener('turbolinks:load', () => this.mountComponents());
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}
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}
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