37 lines
968 B
JavaScript
37 lines
968 B
JavaScript
import { h, Component as BaseComponent } from 'preact';
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import render from 'preact-render-to-string';
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import StaticHtml from './static-html.js';
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function check(Component, props, children) {
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if (typeof Component !== 'function') return false;
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if (Component.prototype != null && typeof Component.prototype.render === 'function') {
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return BaseComponent.isPrototypeOf(Component);
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}
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try {
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const { html } = renderToStaticMarkup(Component, props, children);
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if (typeof html !== 'string') {
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return false;
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}
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// There are edge cases (SolidJS) where Preact *might* render a string,
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// but components would be <undefined></undefined>
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return !/\<undefined\>/.test(html);
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} catch (err) {
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return false;
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}
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}
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function renderToStaticMarkup(Component, props, children) {
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const html = render(
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h(Component, props, children != null ? h(StaticHtml, { value: children }) : children)
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);
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return { html };
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}
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export default {
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check,
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renderToStaticMarkup,
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};
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