alert.coffee

class Dashing.Alert extends Dashing.Widget

  ready: ->

  onData: (data) ->

  @accessor 'isHigh', ->
    @get('level') in ['SEVERE', 'CRITICAL']

alert.html

<h1 class="title" data-bind="title"></h1>
<h2 class="level" data-bind="level"></h2>

alert.scss

.widget-alert {
    background: #00ff99;
}

.widget-alert > h2 {
    font-size: 50px;
}

.danger {
    background: #FF7400;
}

dashboard.erb

<% content_for :title do %>Dashboard<% end %>
<div class="gridster">
    <ul>
        <li data-row="1" data-col="1" data-sizex="1" data-sizey="1">
            <div data-id="terror" data-view="Alert" data-addclass-danger="isHigh"></div>
            <i class="icon-warning-sign icon-background"></i>
        </li>
    </ul>
</div>

terror.rb

require 'feedjira'

SCHEDULER.every '30s' do
  feed = Feedjira::Feed.fetch_and_parse('https://www.mi5.gov.uk/UKThreatLevel/UKThreatLevel.xml')
  entry = feed.entries.first

  send_event('terror', {
    title: entry.title,
    level: entry.summary.scan(/\b[A-Z]+\b/)[1]
  })
end

wiget.png