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joplin/packages/renderer/MdToHtml/rules/image.ts

38 lines
1.4 KiB
TypeScript

import { RuleOptions } from '../../MdToHtml';
import htmlUtils from '../../htmlUtils';
import utils from '../../utils';
function plugin(markdownIt: any, ruleOptions: RuleOptions) {
const defaultRender = markdownIt.renderer.rules.image;
markdownIt.renderer.rules.image = (tokens: any[], idx: number, options: any, env: any, self: any) => {
const Resource = ruleOptions.ResourceModel;
const token = tokens[idx];
const src = utils.getAttr(token.attrs, 'src');
const title = utils.getAttr(token.attrs, 'title');
if (!Resource.isResourceUrl(src) || ruleOptions.plainResourceRendering) return defaultRender(tokens, idx, options, env, self);
const r = utils.imageReplacement(ruleOptions.ResourceModel, src, ruleOptions.resources, ruleOptions.resourceBaseUrl);
if (typeof r === 'string') return r;
if (r) {
let js = '';
if (ruleOptions.enableLongPress) {
const id = r['data-resource-id'];
const longPressHandler = `${ruleOptions.postMessageSyntax}('longclick:${id}')`;
const touchStart = `t=setTimeout(()=>{t=null; ${longPressHandler};}, ${utils.longPressDelay});`;
const cancel = 'if (!!t) clearTimeout(t); t=null';
js = ` ontouchstart="${touchStart}" ontouchend="${cancel}" ontouchcancel="${cancel}" ontouchmove="${cancel}"`;
}
return `<img data-from-md ${htmlUtils.attributesHtml(Object.assign({}, r, { title: title }))}${js}/>`;
}
return defaultRender(tokens, idx, options, env, self);
};
}
export default { plugin };