git ssb

1
var pull = require('pull-stream')
2
var Cat = require('pull-cat')
3
var sort = require('ssb-sort')
4
var ref = require('ssb-ref')
5
var h = require('hyperscript')
6
var u = require('../util')
7
var Scroller = require('pull-scroll')
8
var self_id = require('../keys').id
9
10
function once (cont) {
11
  var ended = false
12
  return function (abort, cb) {
13
    if(abort) return cb(abort)
14
    else if (ended) return cb(ended)
15
    else
16
      cont(function (err, data) {
17
        if(err) return cb(ended = err)
18
        ended = true
19
        cb(null, data)
20
      })
21
  }
22
}
23
24
var plugs = require('../plugs')
25
26
var message_render = plugs.first(exports.message_render = [])
27
var message_name = plugs.first(exports.message_name = [])
28
var message_compose = plugs.first(exports.message_compose = [])
29
var message_unbox = plugs.first(exports.message_unbox = [])
30
31
var sbot_get = plugs.first(exports.sbot_get = [])
32
var sbot_links = plugs.first(exports.sbot_links = [])
33
34
function getThread (root, cb) {
35
  //in this case, it's inconvienent that panel only takes
36
  //a stream. maybe it would be better to accept an array?
37
38
  sbot_get(root, function (err, value) {
39
    var msg = {key: root, value: value}
40
//    if(value.content.root) return getThread(value.content.root, cb)
41
42
    pull(
43
      sbot_links({rel: 'root', dest: root, values: true, keys: true}),
44
      pull.collect(function (err, ary) {
45
        if(err) return cb(err)
46
        ary.unshift(msg)
47
        cb(null, ary)
48
      })
49
    )
50
  })
51
52
}
53
54
exports.screen_view = function (id) {
55
  if(ref.isMsg(id)) {
56
    var meta = {
57
      type: 'post',
58
      root: id,
59
      branch: id //mutated when thread is loaded.
60
    }
61
62
    var content = h('div.column.scroller__content')
63
    var div = h('div.column.scroller',
64
      {style: {'overflow-y': 'auto'}},
65
      h('div.scroller__wrapper',
66
        content,
67
        message_compose(meta, {shrink: false, placeholder: 'Write a reply'})
68
      )
69
    )
70
71
    message_name(id, function (err, name) {
72
      div.title = name
73
    })
74
75
    pull(
76
      sbot_links({
77
        rel: 'root', dest: id, keys: true, old: false
78
      }),
79
      pull.drain(function (msg) {
80
        loadThread() //redraw thread
81
      }, function () {} )
82
    )
83
84
85
    function loadThread () {
86
      getThread(id, function (err, thread) {
87
        //would probably be better keep an id for each message element
88
        //(i.e. message key) and then update it if necessary.
89
        //also, it may have moved (say, if you received a missing message)
90
        content.innerHTML = ''
91
        //decrypt
92
        thread = thread.map(function (msg) {
93
          return 'string' === typeof msg.value.content ? message_unbox(msg) : msg
94
        })
95
96
        if(err) return content.appendChild(h('pre', err.stack))
97
        sort(thread).map(message_render).filter(Boolean).forEach(function (el) {
98
          content.appendChild(el)
99
        })
100
101
        var branches = sort.heads(thread)
102
        meta.branch = branches.length > 1 ? branches : branches[0]
103
        meta.root = thread[0].value.content.root || thread[0].key
104
        meta.channel = thread[0].value.content.channel
105
106
        var recps = thread[0].value.content.recps
107
        var private = thread[0].value.private
108
        if(private) {
109
          if(recps)
110
            meta.recps = recps
111
          else
112
            meta.recps = [thread[0].value.author, self_id]
113
        }
114
      })
115
    }
116
117
    loadThread()
118
    return div
119
  }
120
}
121
122
123