Files: 9ec71e984281e5ef4646b07b557b54375092fbcd / lib / catch-links.js
1015 bytesRaw
1 | |
2 | module.exports = function (root, cb) { |
3 | root.addEventListener('click', (ev) => { |
4 | if (ev.altKey || ev.ctrlKey || ev.metaKey || ev.shiftKey || ev.defaultPrevented) { |
5 | return true |
6 | } |
7 | |
8 | let anchor = null |
9 | for (let n = ev.target; n.parentNode; n = n.parentNode) { |
10 | if (n.nodeName === 'A') { |
11 | anchor = n |
12 | break |
13 | } |
14 | } |
15 | if (!anchor) return true |
16 | |
17 | let href = anchor.getAttribute('href') |
18 | |
19 | if (href) { |
20 | if (href.startsWith('#')) { |
21 | try { |
22 | href = decodeURIComponent(href) |
23 | } catch (e) { |
24 | // Safely ignore error because href isn't URI-encoded. |
25 | } |
26 | } |
27 | let isUrl |
28 | let url |
29 | |
30 | try { |
31 | url = new URL(href) |
32 | isUrl = true |
33 | } catch (e) { |
34 | isUrl = false |
35 | } |
36 | |
37 | if (isUrl && (url.host || url.protocol === 'magnet:')) { |
38 | cb(href, true) |
39 | } else if (href !== '#') { |
40 | cb(href, false, anchor.anchor) |
41 | } |
42 | } |
43 | |
44 | ev.preventDefault() |
45 | ev.stopPropagation() |
46 | }) |
47 | } |
48 |
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