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.defaultPrevented) return // TODO check this is in the right place
19
      ev.preventDefault()
20
      ev.stopPropagation()
21
22
      var anchor = null
23
      for (var n = ev.target; n.parentNode; n = n.parentNode) {
24
        if (n.nodeName === 'A') {
25
          anchor = n
26
          break
27
        }
28
      }
29
      if (!anchor) return true
30
31
      var href = anchor.getAttribute('href')
32
      if (!href || href === '#') return
33
34
      var url
35
36
      try {
37
        url = new URL(href)
38
      } catch (e) {
39
        // In case we pass an invalid URL
40
        url = {}
41
      }
42
43
      var opts = {
44
        altKey: ev.altKey,
45
        ctrlKey: ev.ctrlKey,
46
        metaKey: ev.metaKey,
47
        shiftKey: ev.shiftKey,
48
        isExternal: !!url.host || url.protocol === 'magnet:' || url.protocol === 'dat:'
49
      }
50
51
      cb(href, opts)
52
    })
53
  }
54
55
  function defaultCallback (link, { ctrlKey, isExternal }) {
56
    if (isExternal) return api.app.html.externalConfirm(link)
57
58
    const openBackground = ctrlKey
59
    api.router.async.normalise(link, (err, location) => {
60
      if (err) throw err
61
      if (location) api.app.sync.goTo(location, { openBackground })
62
    })
63
  }
64
}
65