margin.at
Margin is an open annotation layer for the internet. Powered by the AT Protocol.
margin.at
extension
web
atproto
comments
scanash.com
v0.3.0 - PDF support, we now bundle pdf.js - You can now turn highlights into annotations - Improvements and bug fixes
1import { initContentScript } from '@/utils/overlay';
2
3export default defineUnlistedScript(async () => {
4 await waitForPdfTextLayer();
5
6 await initContentScript({
7 onInvalidated: (cb: () => void) => {
8 window.addEventListener('beforeunload', cb);
9 },
10 });
11});
12
13function waitForPdfTextLayer(): Promise<void> {
14 return new Promise((resolve) => {
15 if (document.querySelectorAll('.textLayer span').length > 0) {
16 resolve();
17 return;
18 }
19
20 const observer = new MutationObserver(() => {
21 if (document.querySelectorAll('.textLayer span').length > 0) {
22 observer.disconnect();
23 setTimeout(resolve, 500);
24 }
25 });
26
27 observer.observe(document.body || document.documentElement, {
28 childList: true,
29 subtree: true,
30 });
31
32 setTimeout(() => {
33 observer.disconnect();
34 resolve();
35 }, 10000);
36 });
37}