git ssb

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var h = require('hyperscript')
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var suggest = require('suggest-box')
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var pull = require('pull-stream')
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var plugs = require('../plugs')
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var sbot_query = plugs.first(exports.sbot_query = [])
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var sbot_links2 = plugs.first(exports.sbot_links2 = [])
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var channels = []
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var signified = require('../plugs').first(exports.signified = [])
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var builtinTabs = [
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  '/public', '/private', '/notifications',
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  '/network', '/query', '/theme', '/versions'
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].map(function (name) {
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  return {
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    title: name,
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    value: name,
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  }
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})
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exports.search_box = function (go) {
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  var suggestBox
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  var search = h('input.searchprompt', {
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    type: 'search',
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    placeholder: '?word, @key, #channel',
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    onkeydown: function (ev) {
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      switch (ev.keyCode) {
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        case 13: // enter
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          if (suggestBox && suggestBox.active) {
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            suggestBox.complete()
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            ev.stopPropagation()
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          }
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          if (go(search.value.trim(), !ev.ctrlKey))
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            search.blur()
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          return
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        case 27: // escape
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          ev.preventDefault()
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          search.blur()
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          return
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      }
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    }
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  })
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  search.activate = function (sigil, ev) {
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    search.focus()
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    ev.preventDefault()
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    if (search.value[0] === sigil) {
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      search.selectionStart = 1
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      search.selectionEnd = search.value.length
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    } else {
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      search.value = sigil
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    }
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  }
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  var suggestions = {}
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  // delay until the element has a parent
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  setTimeout(function () {
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    suggestBox = suggest(search, function (word, cb) {
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      if(/^#\w/.test(word))
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        cb(null, channels.filter(function (chan) {
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          return ('#'+chan.name).substring(0, word.length) === word
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        })
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        .map(function (chan) {
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          var name = '#'+chan.name
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          return {
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            title: name,
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            value: name,
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            subtitle: chan.rank
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          }
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        }))
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      else if(/^@\w/.test(word)) {
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        signified(word, function (_, names) {
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          cb(null, names.map(function (e) {
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            return {
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              title: e.name + ':'+e.id.substring(0, 10),
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              value: e.id,
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              subtitle: e.rank
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            }
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          }))
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        })
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      } else if(/^\//.test(word)) {
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        cb(null, builtinTabs.filter(function (name) {
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          return name.value.substr(0, word.length) === word
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        }))
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      }
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    }, {})
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  }, 10)
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  pull(
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    sbot_query({query: [
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      {$filter: {value: {content: {channel: {$gt: ''}}}}},
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      {$reduce: {
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        name: ['value', 'content', 'channel'],
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        rank: {$count: true}
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      }}
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    ]}),
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    pull.collect(function (err, chans) {
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      if (err) return console.error(err)
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      channels = chans
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    })
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  )
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  return search
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}
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