rudeshark.net/src/mfm/html.ts
2018-12-09 03:40:40 +09:00

156 lines
3.7 KiB
TypeScript

const jsdom = require('jsdom');
const { JSDOM } = jsdom;
import config from '../config';
import { INote } from '../models/note';
import { Node } from './parser';
import { intersperse } from '../prelude/array';
export default (tokens: Node[], mentionedRemoteUsers: INote['mentionedRemoteUsers'] = []) => {
if (tokens == null) {
return null;
}
const { window } = new JSDOM('');
const doc = window.document;
function dive(nodes: Node[]): any[] {
return nodes.map(n => handlers[n.name](n));
}
const handlers: { [key: string]: (token: Node) => any } = {
bold(token) {
const el = doc.createElement('b');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
big(token) {
const el = doc.createElement('strong');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
small(token) {
const el = doc.createElement('small');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
strike(token) {
const el = doc.createElement('del');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
italic(token) {
const el = doc.createElement('i');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
motion(token) {
const el = doc.createElement('i');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
blockCode(token) {
const pre = doc.createElement('pre');
const inner = doc.createElement('code');
inner.innerHTML = token.props.code;
pre.appendChild(inner);
return pre;
},
center(token) {
const el = doc.createElement('div');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
emoji(token) {
return doc.createTextNode(token.props.emoji ? token.props.emoji : `:${token.props.name}:`);
},
hashtag(token) {
const a = doc.createElement('a');
a.href = `${config.url}/tags/${token.props.hashtag}`;
a.textContent = `#${token.props.hashtag}`;
a.setAttribute('rel', 'tag');
return a;
},
inlineCode(token) {
const el = doc.createElement('code');
el.textContent = token.props.code;
return el;
},
math(token) {
const el = doc.createElement('code');
el.textContent = token.props.formula;
return el;
},
link(token) {
const a = doc.createElement('a');
a.href = token.props.url;
dive(token.children).forEach(child => a.appendChild(child));
return a;
},
mention(token) {
const a = doc.createElement('a');
const { username, host, acct } = token.props;
const remoteUserInfo = mentionedRemoteUsers.find(remoteUser => remoteUser.username === username && remoteUser.host === host);
a.href = remoteUserInfo ? remoteUserInfo.uri : `${config.url}/${acct}`;
a.textContent = acct;
return a;
},
quote(token) {
const el = doc.createElement('blockquote');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
title(token) {
const el = doc.createElement('h1');
dive(token.children).forEach(child => el.appendChild(child));
return el;
},
text(token) {
const el = doc.createElement('span');
const nodes = (token.props.text as string).split('\n').map(x => doc.createTextNode(x));
for (const x of intersperse('br', nodes)) {
el.appendChild(x === 'br' ? doc.createElement('br') : x);
}
return el;
},
url(token) {
const a = doc.createElement('a');
a.href = token.props.url;
a.textContent = token.props.url;
return a;
},
search(token) {
const a = doc.createElement('a');
a.href = `https://www.google.com/?#q=${token.props.query}`;
a.textContent = token.props.content;
return a;
}
};
dive(tokens).forEach(x => {
doc.body.appendChild(x);
});
return `<p>${doc.body.innerHTML}</p>`;
};