Module: Ratchet::IconHelper

Defined in:
app/helpers/ratchet/icon_helper.rb

Instance Method Summary collapse

Instance Method Details

#deployment_graphic ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 18

def deployment_graphic
  Site.deployment_icon
end

#deployment_icon(name, options = {}) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 107

def deployment_icon(name, options={})
  options[:stroke_width] ||= 8
  options[:text] ||= { "font-weight" => 600, "font-size" => "76px" }
  deployment_svg name, options
end

#deployment_info(name) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 4

def deployment_info(name)
  deployment = deployments[name.downcase]

  if deployment.nil? && !Rails.env.production?
    raise %Q{No deployment type "#{name}" exists.}
  end
    
  deployment
end

#deployment_svg(name, options = {}) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 93

def deployment_svg(name, options={})
  data = deployment_info(name)
  (options[:use] ||= {})
  options[:use][:stroke] ||= options.delete(:stroke) || "currentColor"
  options[:use][:stroke_width] ||= options.delete(:stroke_width) || 4
  options[:use][:class] ||= "deployment-icon-hex #{options[:use][:class]}".strip

  options[:fill]    ||= "url(##{data[:gradient]})"
  options[:color]   ||= "#fff"
  options[:content] ||= deployment_text(data[:short_name], options.delete(:text) || {})

  deployment_graphic.use(options).html_safe
end

#deployment_text(text, options = {}) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 41

def deployment_text(text, options={})
  options = {
    x: deployment_graphic.width.to_f / 2,
    y: deployment_graphic.height.to_f / 2,
    fill: "currentColor",
    "font-weight" => 700,
    "font-size" => "57px",
    "text-anchor" => "middle",
    "dominant-baseline" =>"central",
    "alignment-baseline" => "central"
  }.merge(options)

  content_tag(:text, text, options).html_safe
end

#deployment_topology(name, options = {}) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 56

def deployment_topology(name, options={})
  data = deployment_info(name)

  components = data[:topology].map do |item|
    Esvg.find_symbol("topology/#{item}")
  end

  base = 153 # height of top plane
  options[:spacing] ||= 10  # space between

  # Find height of each section
  heights = components.map(&:height).map { |h| h - base + options[:spacing] }

  # Start coordinates at 0
  y = [0].concat heights

  # Add previous height total to create next coordinate
  y = y.map.with_index { |h, i| y[0..i].reduce(:+) }

  # Full height = last calculated coordinate + base (minus the additional space)
  height = base + y.pop - options[:spacing]

  use = components.map.with_index do |c, i|
    part_name = c.name.sub('topology-','')
    c.use_tag(y: y[i], width: c.width, height: c.height, class:'capsule', "aria-label" => topology_desc(part_name, name.downcase))
  end.reverse.join

  attr = {
    version: "1.1",
    preserveAspectRatio: "xMidYMid meet",
    viewBox: "0 0 #{components.last.width} #{height}",
    'aria-label' => "Topology of a #{data[:name]} deployment"
  }.merge(options)

  content_tag(:svg, attr) { use.html_safe }
end

#deployments ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 14

def deployments
  Site.deployment_data['deployments']
end

#grid_bg(options = {}) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 22

def grid_bg(options={})
  options = {
    scale: true,
    class: "svg-bg bottom centered",
    "aria-hidden" => true
  }.merge(options)

  use_svg "graphics/grid", options
end

#topology_desc(part, deployment_name) ⇒ Object 



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# File 'app/helpers/ratchet/icon_helper.rb', line 32

def topology_desc(part, deployment_name)
  parts = Site.deployment_data['parts']
  if parts[deployment_name] && parts[deployment_name][part]
    parts[deployment_name][part]
  else
    parts[part]
  end
end