/
jsx.ts
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/
jsx.ts
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import { React, ReactDOMServer } from "../deps/react.ts";
import loader from "../core/loaders/module.ts";
import { merge } from "../core/utils.ts";
import type { Data, Engine, Helper, Site } from "../core.ts";
export interface Options {
/** The list of extensions this plugin applies to */
extensions:
| string[]
| {
pages: string[];
components: string[];
};
}
// Default options
export const defaults: Options = {
extensions: [".jsx", ".tsx"],
};
// JSX children type
export type Children = React.ReactNode | React.ReactNode[];
// Ensure React is available in the global scope
// so no need to import it in every file
window.React ||= React;
/** Template engine to render JSX files */
export class JsxEngine implements Engine {
helpers: Record<string, Helper> = {};
basePath: string;
constructor(basePath: string) {
this.basePath = basePath;
}
deleteCache() {}
async render(content: unknown, data: Data = {}) {
// The content is a string, so we have to convert to a React element
if (typeof content === "string") {
content = React.createElement("div", {
dangerouslySetInnerHTML: { __html: content },
});
}
// Create the children property
let children = data.content;
// If the children is a string, convert it to a React element
if (typeof children === "string") {
children = React.createElement("div", {
dangerouslySetInnerHTML: { __html: children },
});
}
const element = typeof content === "object" && React.isValidElement(content)
? content
: ((typeof content === "function"
? await content({ ...data, children }, this.helpers)
: content) as React.ReactElement);
if (React.isValidElement(element)) {
return {
...element,
toString: () => ReactDOMServer.renderToStaticMarkup(element),
};
}
return element;
}
renderSync(content: unknown, data: Data = {}): { toString(): string } {
const element = typeof content === "function"
? content(data, this.helpers)
: content;
if (React.isValidElement(element)) {
return {
...element,
toString: () => ReactDOMServer.renderToStaticMarkup(element),
};
}
return element;
}
addHelper(name: string, fn: Helper) {
this.helpers[name] = fn;
}
}
/** Register the plugin to support JSX and TSX files */
export default function (userOptions?: Partial<Options>) {
const options = merge(defaults, userOptions);
const extensions = Array.isArray(options.extensions)
? { pages: options.extensions, components: options.extensions }
: options.extensions;
return (site: Site) => {
const engine = new JsxEngine(site.src("/"));
site.loadPages(extensions.pages, loader, engine);
site.loadComponents(extensions.components, loader, engine);
};
}