69 lines
1.8 KiB
JavaScript
69 lines
1.8 KiB
JavaScript
import { cachedInlineOnebox } from 'pretty-text/inline-oneboxer';
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function applyInlineOnebox(state, silent) {
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if (silent || !state.tokens) {
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return;
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}
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for (let i=1; i<state.tokens.length; i++) {
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let token = state.tokens[i];
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if (token.type === "inline") {
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let children = token.children;
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for (let j=0; j<children.length-2; j++) {
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let child = children[j];
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if (child.type === "link_open" && child.markup === 'linkify' && child.info === 'auto') {
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if (j > children.length-3) {
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continue;
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}
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let text = children[j+1];
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let close = children[j+2];
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// check attrs only include a href
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let attrs = child.attrs;
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if (!attrs || attrs.length !== 1 || attrs[0][0] !== "href") {
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continue;
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}
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let href = attrs[0][1];
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if (!/^http|^\/\//i.test(href)) {
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continue;
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}
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// we already know text matches cause it is an auto link
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if (!close || close.type !== "link_close") {
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continue;
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}
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// link must be the same as the href
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if (!text || text.content !== href) {
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continue;
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}
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// check for href
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let onebox = cachedInlineOnebox(href);
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let options = state.md.options.discourse;
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if (options.lookupInlineOnebox) {
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onebox = options.lookupInlineOnebox(href);
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}
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if (onebox) {
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text.content = onebox.title;
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} else if (state.md.options.discourse.previewing) {
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attrs.push(["class", "inline-onebox-loading"]);
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}
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}
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}
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}
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}
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}
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export function setup(helper) {
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helper.registerPlugin(md => {
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md.core.ruler.after('onebox', 'inline-onebox', applyInlineOnebox);
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});
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}
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