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joplin/ReactNativeClient/lib/renderers/MdToHtml/rules/image.js

29 lines
1.1 KiB
JavaScript

const Entities = require('html-entities').AllHtmlEntities;
const htmlentities = (new Entities()).encode;
const Resource = require('lib/models/Resource.js');
const utils = require('../../utils');
const htmlUtils = require('lib/htmlUtils.js');
function installRule(markdownIt, mdOptions, ruleOptions) {
const defaultRender = markdownIt.renderer.rules.image;
markdownIt.renderer.rules.image = (tokens, idx, options, env, self) => {
const token = tokens[idx];
const src = utils.getAttr(token.attrs, 'src');
const title = utils.getAttr(token.attrs, 'title');
if (!Resource.isResourceUrl(src)) return defaultRender(tokens, idx, options, env, self);
const r = utils.imageReplacement(src, ruleOptions.resources, ruleOptions.resourceBaseUrl);
if (typeof r === 'string') return r;
if (r) return '<img data-from-md ' + htmlUtils.attributesHtml(Object.assign({}, r, { title: title })) + '/>';
return defaultRender(tokens, idx, options, env, self);
};
}
module.exports = function(context, ruleOptions) {
return function(md, mdOptions) {
installRule(md, mdOptions, ruleOptions);
};
};