99 lines
2.0 KiB
JavaScript
99 lines
2.0 KiB
JavaScript
const async = require('async');
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const Remarkable = require('remarkable');
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const compile = require('./compile');
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const evaluate = require('./eval');
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const uuid = require('uuid').v4;
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const templates = {
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plain: (style, body) => `
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<style>${style}</style>
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${body}
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`,
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iframe: (style, body) => {
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const _body = body.replace(/"/g, '\'');
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return `
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<iframe srcdoc="
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<html>
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<style>${style}</style>
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<body>${_body}</body>">
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</iframe>
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`;
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},
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shadow: (style, body) => {
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const id = uuid();
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const script = `(function() {
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const element = document.getElementById('${id}').attachShadow({
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mode: 'closed'
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});
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const template = document.getElementById('${id}-template');
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element.appendChild(document.importNode(template.content, true));
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})();`;
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return `
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<div id="${id}"></div>
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<template id="${id}-template">
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${templates.plain(style, body)}
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</template>
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<script>${script}</script>
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`;
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}
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};
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module.exports = ({
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mode = 'shadow',
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fullname,
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source,
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config = {}
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}, fn) => {
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const instance = new Remarkable(config.renderer);
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const {
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parse,
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renderer,
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options
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} = instance;
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const entrypoint = fullname.replace(/\.md$/, '.js');
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const tokens = parse.call(instance, source, options, {});
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async.map(tokens, (token, fn) => {
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if ((token.type !== 'fence') || (token.params !== 'embed')) {
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return fn(null, token);
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}
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compile({
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source: token.content,
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config: config.webpack,
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entrypoint
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}, (err, {
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body,
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style
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}) => {
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if (err) {
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return fn(err);
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}
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const evaluated = evaluate({
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entrypoint,
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source: body
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});
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const content = templates[mode](style, evaluated);
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return fn(null, {
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type: 'htmlblock',
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content
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});
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});
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}, (err, tokens) => {
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if (err) {
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return fn(err);
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}
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fn(err, renderer.render.call(instance.renderer, tokens, options, {}));
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});
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};
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