git ssb

1
const nest = require('depnest')
2
const { h, when, send, resolve, Value, computed } = require('mutant')
3
const assign = require('lodash/assign')
4
const ssbMentions = require('ssb-mentions')
5
const addSuggest = require('suggest-box')
6
7
exports.gives = nest('message.html.compose')
8
9
exports.needs = nest({
10
  'about.async.suggest': 'first',
11
  'blob.html.input': 'first',
12
  'channel.async.suggest': 'first',
13
  'emoji.async.suggest': 'first',
14
  'emoji.sync.names': 'first',
15
  'emoji.sync.url': 'first',
16
  'message.async.publish': 'first',
17
  'message.html.markdown': 'first',
18
  // 'message.html.confirm': 'first'
19
  'translations.sync.strings': 'first'
20
})
21
22
exports.create = function (api) {
23
  return nest('message.html.compose', compose)
24
25
  function compose (options, cb) {
26
    var {
27
      meta, // required
28
      placeholder,
29
      shrink = true,
30
      canAttach = true, canPreview = true,
31
      prepublish
32
    } = options
33
34
    const strings = api.translations.sync.strings()
35
    const getProfileSuggestions = api.about.async.suggest()
36
    const getChannelSuggestions = api.channel.async.suggest()
37
    const getEmojiSuggestions = api.emoji.async.suggest()
38
39
    placeholder = placeholder || strings.writeMessage
40
41
    var files = []
42
    var filesById = {}
43
    var textAreaFocused = Value(false)
44
    var focused = textAreaFocused
45
    var hasContent = Value(false)
46
47
    var blurTimeout = null
48
49
    var expanded = computed([shrink, focused, hasContent], (shrink, focused, hasContent) => {
50
      if (!shrink || hasContent) return true
51
52
      return focused
53
    })
54
55
    var textRaw = Value('')
56
    var textArea = h('textarea', {
57
      'ev-input': () => textRaw.set(textArea.value),
58
      'ev-blur': () => {
59
        clearTimeout(blurTimeout)
60
        blurTimeout = setTimeout(() => textAreaFocused.set(false), 200)
61
      },
62
      'ev-focus': send(textAreaFocused.set, true),
63
      placeholder
64
    })
65
    textRaw(text => hasContent.set(!!text))
66
67
    textArea.publish = publish // TODO: fix - clunky api for the keyboard shortcut to target
68
69
    var fileInput
70
    if(!meta.recps) {
71
      fileInput = api.blob.html.input(file => {
72
        files.push(file)
73
        filesById[file.link] = file
74
75
        var embed = file.type.match(/^image/) ? '!' : ''
76
        var spacer = embed ? '\n' : ' '
77
        var insertLink = spacer + embed + '[' + file.name + ']' + '(' + file.link + ')' + spacer
78
79
        var pos = textArea.selectionStart
80
        var newText = textRaw().slice(0, pos) + insertLink + textRaw().slice(pos)
81
        textArea.value = newText
82
        textRaw.set(newText)
83
84
        console.log('added:', file)
85
      })
86
87
      fileInput.onclick = () => hasContent.set(true)
88
    }
89
    // if fileInput is null, send button moves to the left side
90
    // and we don't want that.
91
    else
92
      fileInput = h('input', { style: {visibility: 'hidden'} })
93
94
    var showPreview = Value(false)
95
    var previewBtn = h('Button',
96
      {
97
        className: when(showPreview, '-strong', '-subtle'),
98
        'ev-click': () => showPreview.set(!showPreview())
99
      }, 
100
      when(showPreview, strings.blogNew.actions.edit, strings.blogNew.actions.preview)
101
    )
102
    var preview = computed(textRaw, text => api.message.html.markdown(text))
103
104
    var publishBtn = h('Button -primary', { 'ev-click': publish }, strings.sendMessage)
105
106
    var actions = h('section.actions', [
107
      canAttach ? fileInput : '',
108
      canPreview ? previewBtn : '',
109
      publishBtn
110
    ])
111
112
    var composer = h('Compose', {
113
      classList: when(expanded, '-expanded', '-contracted')
114
    }, [
115
      when(showPreview, preview, textArea),
116
      actions
117
    ])
118
119
    addSuggest(textArea, (inputText, cb) => {
120
      const char = inputText[0]
121
      const wordFragment = inputText.slice(1)
122
123
      if (char === '@') cb(null, getProfileSuggestions(wordFragment))
124
      if (char === '#') cb(null, getChannelSuggestions(wordFragment))
125
      if (char === ':') cb(null, getEmojiSuggestions(wordFragment))
126
    }, {cls: 'PatchSuggest'})
127
128
    return composer
129
130
    // scoped
131
132
    function publish () {
133
      publishBtn.disabled = true
134
      const text = resolve(textRaw)
135
136
      const mentions = ssbMentions(text).map(mention => {
137
        // merge markdown-detected mention with file info
138
        var file = filesById[mention.link]
139
        if (file) {
140
          if (file.type) mention.type = file.type
141
          if (file.size) mention.size = file.size
142
        }
143
        return mention
144
      })
145
146
      var content = assign({}, resolve(meta), {
147
        text,
148
        mentions
149
      })
150
      for(var k in content)
151
          content[k] = resolve(content[k])
152
153
      if (!content.channel) delete content.channel
154
      if (!mentions.length) delete content.mentions
155
      if (content.recps && content.recps.length === 0) delete content.recps
156
157
      if (typeof prepublish === 'function') {
158
        prepublish(content, function (err, content) {
159
          if(err) handleErr(err)
160
          else api.message.async.publish(content, done)
161
        })
162
      }
163
      else
164
        api.message.async.publish(content, done)
165
166
      function done (err, msg) {
167
        publishBtn.disabled = false
168
        if (err) handleErr(err)
169
        else if (msg) { 
170
          textRaw.set('')
171
          textArea.value = ''
172
        }
173
        if (cb) cb(err, msg)
174
      }
175
176
      function handleErr (err) {
177
        publishBtn.disabled = false
178
        if (cb) cb(err)
179
        else throw err
180
      }
181
    }
182
  }
183
}
184
185
186