git ssb

1
const nest = require('depnest')
2
3
exports.gives = nest('app.async.catchLinkClick')
4
5
exports.needs = nest({
6
  'app.html.externalConfirm': 'first',
7
  'app.sync.goTo': 'first',
8
  'router.async.normalise': 'first'
9
})
10
11
exports.create = function (api) {
12
  return nest('app.async.catchLinkClick', catchLinkClick)
13
14
  function catchLinkClick (root, cb = defaultCallback) {
15
    root.addEventListener('click', (ev) => {
16
      if (ev.target.tagName === 'INPUT' &&
17
          (ev.target.type === 'file' || ev.target.type === 'checkbox')) return
18
      if (ev.target.tagName === 'AUDIO') return
19
      if (ev.target.tagName === 'VIDEO') return
20
      if (ev.defaultPrevented) return // TODO check this is in the right place
21
      ev.preventDefault()
22
      ev.stopPropagation()
23
24
      var anchor = null
25
      for (var n = ev.target; n.parentNode; n = n.parentNode) {
26
        if (n.nodeName === 'A') {
27
          anchor = n
28
          break
29
        }
30
      }
31
      if (!anchor) return true
32
33
      var href = anchor.getAttribute('href')
34
      if (!href || href === '#') return
35
36
      var url
37
38
      try {
39
        url = new URL(href)
40
      } catch (e) {
41
        // In case we pass an invalid URL
42
        url = {}
43
      }
44
45
      var opts = {
46
        altKey: ev.altKey,
47
        ctrlKey: ev.ctrlKey,
48
        metaKey: ev.metaKey,
49
        shiftKey: ev.shiftKey,
50
        isExternal: !!url.host || url.protocol === 'magnet:' || url.protocol === 'dat:'
51
      }
52
53
      cb(href, opts)
54
    })
55
  }
56
57
  function defaultCallback (link, { ctrlKey, isExternal }) {
58
    if (isExternal) return api.app.html.externalConfirm(link)
59
60
    const openBackground = ctrlKey
61
    api.router.async.normalise(link, (err, location) => {
62
      if (err) throw err
63
      if (location) api.app.sync.goTo(location, { openBackground })
64
    })
65
  }
66
}
67