git ssb

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var h = require('mutant/h')
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var nest = require('depnest')
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var extend = require('xtend')
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exports.needs = nest({
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  'message.html': {
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    decorate: 'reduce',
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    layout: 'first',
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    link: 'first',
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    markdown: 'first'
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  }
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})
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exports.gives = nest({
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  'message.html': {
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    canRender: true,
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    render: true
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  }
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})
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exports.create = function (api) {
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  return nest('message.html', {
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    canRender: isRenderable,
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    render: channel
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  })
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  function channel (msg, opts) {
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    if (!isRenderable(msg)) return
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    var element = api.message.html.layout(msg, extend({
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      content: renderContent(msg),
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      layout: 'mini'
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    }, opts))
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    return api.message.html.decorate(element, {
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      msg
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    })
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  }
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  function renderContent (msg) {
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    var channel = '#' + msg.value.content.channel
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    return [
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      msg.value.content.subscribed ? 'subscribed to channel' : 'unsubscribed from channel', ' ', h('a.channel', {
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        href: channel
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      }, channel)
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    ]
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  }
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  function isRenderable (msg) {
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    return msg.value.content.type === 'channel' ? true : undefined
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  }
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}
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