git ssb

1
var ui = require('../ui')
2
var pull = require('pull-stream')
3
var Cat = require('pull-cat')
4
var sort = require('ssb-sort')
5
var ref = require('ssb-ref')
6
var h = require('hyperscript')
7
var u = require('../util')
8
var Scroller = require('pull-scroll')
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_compose = plugs.first(exports.message_compose = [])
28
var message_unbox = plugs.first(exports.message_unbox = [])
29
30
var sbot_get = plugs.first(exports.sbot_get = [])
31
var sbot_links = plugs.first(exports.sbot_links = [])
32
33
function getThread (root, cb) {
34
  //in this case, it's inconvienent that panel only takes
35
  //a stream. maybe it would be better to accept an array?
36
37
  sbot_get(root, function (err, value) {
38
    var msg = {key: root, value: value}
39
    if(value.content.root) return getThread(value.content.root, cb)
40
41
    pull(
42
      sbot_links({rel: 'root', dest: root, values: true, keys: true}),
43
      pull.collect(function (err, ary) {
44
        if(err) return cb(err)
45
        ary.unshift(msg)
46
        cb(null, ary)
47
      })
48
    )
49
  })
50
51
//  return pull(Cat([
52
//    once(function (cb) {
53
//      sbot_get(root, function (err, value) {
54
//        cb(err, {key: root, value: value})
55
//      })
56
//    }),
57
//    sbot_links({rel: 'root', dest: root, values: true, keys: true})
58
//  ]), pull.collect(cb))
59
}
60
61
exports.screen_view = function (id, sbot) {
62
  if(ref.isMsg(id)) {
63
    var meta = {
64
      type: 'post',
65
      root: id,
66
      branch: id //mutated when thread is loaded.
67
    }
68
69
    var content = h('div')
70
    var div = h('div.column',
71
      {style: {'overflow-y': 'auto'}},
72
      content,
73
      h('div.editor', message_compose(meta))
74
    )
75
76
    pull(
77
      sbot_links({
78
        rel: 'root', dest: id, keys: true, old: false
79
      }),
80
      pull.drain(function (msg) {
81
        loadThread() //redraw thread
82
      }, function () {} )
83
    )
84
85
86
    function loadThread () {
87
      getThread(id, function (err, thread) {
88
        //would probably be better keep an id for each message element
89
        //(i.e. message key) and then update it if necessary.
90
        //also, it may have moved (say, if you received a missing message)
91
        content.innerHTML = ''
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).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].key
104
105
        var recps = thread[0].value.content.recps
106
        if(recps && thread[0].value.private)
107
          meta.recps = recps
108
      })
109
    }
110
111
    loadThread()
112
    return div
113
  }
114
}
115
116
117
118
119
120