git ssb

1
const { h, when, send, resolve, Value, computed } = require('mutant')
2
const nest = require('depnest')
3
const ssbMentions = require('ssb-mentions')
4
const extend = require('xtend')
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
  'channel.async.suggest': 'first',
12
  'emoji.async.suggest': 'first',
13
  'meme.async.suggest': 'first',
14
  'blob.html.input': 'first',
15
  'message.html.confirm': 'first',
16
  'drafts.sync.get': 'first',
17
  'drafts.sync.set': 'first',
18
  'drafts.sync.remove': 'first',
19
  'settings.obs.get': 'first'
20
})
21
22
exports.create = function (api) {
23
  return nest({ 'message.html.compose': compose })
24
25
  function compose (options, cb) {
26
    const {
27
      meta,
28
      location,
29
      feedIdsInThread = [],
30
      prepublish,
31
      placeholder = 'Write a message',
32
      shrink = true
33
    } = options
34
35
    if (typeof resolve(meta) !== 'object') throw new Error('Compose needs meta data about what sort of message composer you are making')
36
    if (!location) throw new Error('Compose expects a unique location so it can save drafts of messages')
37
38
    var files = []
39
    var filesById = {}
40
    var channelInputFocused = Value(false)
41
    var textAreaFocused = Value(false)
42
    var focused = computed([channelInputFocused, textAreaFocused], (a, b) => a || b)
43
    var hasContent = Value(false)
44
45
    var blurTimeout = null
46
47
    var expanded = computed([shrink, focused, hasContent], (shrink, focused, hasContent) => {
48
      if (!shrink || hasContent) return true
49
50
      return focused
51
    })
52
53
    var channelInput = h('input.channel', {
54
      'ev-input': () => hasContent.set(!!channelInput.value),
55
      'ev-keyup': ev => {
56
        ev.target.value = ev.target.value.replace(/^#*([\w@%&])/, '#$1')
57
      },
58
      'ev-blur': () => {
59
        clearTimeout(blurTimeout)
60
        blurTimeout = setTimeout(() => channelInputFocused.set(false), 200)
61
      },
62
      'ev-focus': send(channelInputFocused.set, true),
63
      placeholder: '#channel (optional)',
64
      value: computed(meta.channel, ch => ch ? '#' + ch : null),
65
      disabled: when(meta.channel, true),
66
      title: when(meta.channel, 'Reply is in same channel as original message')
67
    })
68
69
    var draftPerstTimeout = null
70
    var draftLocation = location
71
    var textArea = h('textarea', {
72
      'ev-input': () => {
73
        hasContent.set(!!textArea.value)
74
        clearTimeout(draftPerstTimeout)
75
        draftPerstTimeout = setTimeout(() => {
76
          api.drafts.sync.set(draftLocation, textArea.value)
77
        }, 200)
78
      },
79
      'ev-blur': () => {
80
        clearTimeout(blurTimeout)
81
        blurTimeout = setTimeout(() => textAreaFocused.set(false), 200)
82
      },
83
      'ev-focus': send(textAreaFocused.set, true),
84
      placeholder
85
    })
86
    textArea.publish = publish // TODO: fix - clunky api for the keyboard shortcut to target
87
88
    // load draft
89
    let draft = api.drafts.sync.get(draftLocation)
90
    if (typeof draft === 'string') {
91
      textArea.value = draft
92
      hasContent.set(true)
93
    }
94
95
    var isPrivate = location.page === 'private' ||
96
          (location.key && !location.value) ||
97
          (location.value && location.value.private)
98
99
    var warningMessage = Value(null)
100
    var warning = h('section.warning',
101
      { className: when(warningMessage, '-open', '-closed') },
102
      [
103
        h('div.warning', warningMessage),
104
        h('div.close', { 'ev-click': () => warningMessage.set(null) }, 'x')
105
      ]
106
    )
107
    var fileInput = api.blob.html.input(file => {
108
      const megabytes = file.size / 1024 / 1024
109
      if (megabytes >= 5) {
110
        const rounded = Math.floor(megabytes * 100) / 100
111
        warningMessage.set([
112
          h('i.fa.fa-exclamation-triangle'),
113
          h('strong', file.name),
114
          ` is ${rounded}MB - the current limit is 5MB`
115
        ])
116
        return
117
      }
118
119
      files.push(file)
120
      filesById[file.link] = file
121
122
      const pos = textArea.selectionStart
123
      const embed = file.type.match(/^image/) ? '!' : ''
124
      const spacer = embed ? '\n' : ' '
125
      const insertLink = spacer + embed + '[' + file.name + ']' + '(' + file.link + ')' + spacer
126
127
      textArea.value = textArea.value.slice(0, pos) + insertLink + textArea.value.slice(pos)
128
129
      console.log('added:', file)
130
    }, { private: isPrivate, removeExif: api.settings.obs.get('patchbay.removeExif', true) })
131
132
    fileInput.onclick = () => hasContent.set(true)
133
134
    var publishBtn = h('button', { 'ev-click': publish }, isPrivate ? 'Reply' : 'Publish')
135
136
    var actions = h('section.actions', [
137
      fileInput,
138
      publishBtn
139
    ])
140
141
    var composer = h('Compose', {
142
      classList: when(expanded, '-expanded', '-contracted')
143
    }, [
144
      channelInput,
145
      textArea,
146
      warning,
147
      actions
148
    ])
149
150
    composer.addQuote = function (data) {
151
      try {
152
        if (typeof data.content.text === 'string') {
153
          var text = data.content.text
154
          textArea.value += '> ' + text.replace(/\r\n|\r|\n/g, '\n> ') + '\r\n\n'
155
          hasContent.set(!!textArea.value)
156
        }
157
      } catch (err) {
158
        // object not have text or content
159
      }
160
    }
161
162
    if (location.action === 'quote') { composer.addQuote(location.value) }
163
164
    addSuggest(channelInput, (inputText, cb) => {
165
      if (inputText[0] === '#') {
166
        api.channel.async.suggest(inputText.slice(1), cb)
167
      }
168
    }, {cls: 'PatchSuggest'})
169
    channelInput.addEventListener('suggestselect', ev => {
170
      channelInput.value = ev.detail.id // HACK : this over-rides the markdown value
171
    })
172
173
    addSuggest(textArea, (inputText, cb) => {
174
      const char = inputText[0]
175
      const wordFragment = inputText.slice(1)
176
177
      if (char === '@') api.about.async.suggest(wordFragment, feedIdsInThread, cb)
178
      if (char === '#') api.channel.async.suggest(wordFragment, cb)
179
      if (char === ':') api.emoji.async.suggest(wordFragment, cb)
180
      if (char === '&') api.meme.async.suggest(wordFragment, cb)
181
    }, {cls: 'PatchSuggest'})
182
183
    return composer
184
185
    // scoped
186
187
    function publish () {
188
      publishBtn.disabled = true
189
190
      const channel = channelInput.value.startsWith('#')
191
        ? channelInput.value.substr(1).trim()
192
        : channelInput.value.trim()
193
      const mentions = ssbMentions(textArea.value).map(mention => {
194
        // merge markdown-detected mention with file info
195
        var file = filesById[mention.link]
196
        if (file) {
197
          if (file.type) mention.type = file.type
198
          if (file.size) mention.size = file.size
199
        }
200
        return mention
201
      })
202
203
      var content = extend(resolve(meta), {
204
        text: textArea.value,
205
        channel,
206
        mentions
207
      })
208
209
      if (!channel) delete content.channel
210
      if (!mentions.length) delete content.mentions
211
      if (content.recps && content.recps.length === 0) delete content.recps
212
213
      try {
214
        if (typeof prepublish === 'function') {
215
          content = prepublish(content)
216
        }
217
      } catch (err) {
218
        publishBtn.disabled = false
219
        if (cb) cb(err)
220
        else throw err
221
      }
222
223
      return api.message.html.confirm(content, done)
224
225
      function done (err, msg) {
226
        publishBtn.disabled = false
227
        if (err) throw err
228
        else if (msg) {
229
          textArea.value = ''
230
          api.drafts.sync.remove(draftLocation)
231
        }
232
        if (cb) cb(err, msg)
233
      }
234
    }
235
  }
236
}
237