discourse/app/assets/javascripts/pretty-text/engines/discourse-markdown/inject-line-number.js
Krzysztof Kotlarek dbec3792b7
FIX: pretty text allow list (#10977)
Reword whitelist to allowlist in pretty-text.
This library is used by plugins so we need deprecation notice.
2020-10-28 13:22:06 +11:00

53 lines
1.6 KiB
JavaScript

export function setup(helper) {
const opts = helper.getOptions();
if (opts.previewing && opts.injectLineNumbersToPreview) {
helper.allowList([
"p.preview-sync-line",
"p[data-line-number]",
"h1.preview-sync-line",
"h1[data-line-number]",
"h2.preview-sync-line",
"h2[data-line-number]",
"h3.preview-sync-line",
"h3[data-line-number]",
"h4.preview-sync-line",
"h4[data-line-number]",
"h5.preview-sync-line",
"h5[data-line-number]",
"h6.preview-sync-line",
"h6[data-line-number]",
"blockquote.preview-sync-line",
"blockquote[data-line-number]",
"hr.preview-sync-line",
"hr[data-line-number]",
"ul.preview-sync-line",
"ul[data-line-number]",
"ol.preview-sync-line",
"ol[data-line-number]",
]);
helper.registerPlugin((md) => {
const injectLineNumber = (tokens, index, options, env, self) => {
let line;
const token = tokens[index];
if (token.map && token.level === 0) {
line = token.map[0];
token.attrJoin("class", "preview-sync-line");
token.attrSet("data-line-number", String(line));
}
return self.renderToken(tokens, index, options, env, self);
};
md.renderer.rules.paragraph_open = injectLineNumber;
md.renderer.rules.heading_open = injectLineNumber;
md.renderer.rules.blockquote_open = injectLineNumber;
md.renderer.rules.hr = injectLineNumber;
md.renderer.rules.ordered_list_open = injectLineNumber;
md.renderer.rules.bullet_list_open = injectLineNumber;
});
}
}