Class: Pigeon::Renderer::Base

Inherits:
Object
  • Object
show all
Includes:
ActionView::Helpers::AssetTagHelper, ActionView::Helpers::OutputSafetyHelper, ActionView::Helpers::TagHelper, ActionView::Helpers::TextHelper, Sprockets::Helpers::IsolatedHelper, Sprockets::Helpers::RailsHelper
Defined in:
app/helpers/pigeon/renderer/base.rb

Direct Known Subclasses

ChannelRenderer

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#delegate ⇒ Object

Returns the value of attribute delegate.



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# File 'app/helpers/pigeon/renderer/base.rb', line 29

def delegate
  @delegate
end

Class Method Details

.find_handler(command) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 17

def find_handler(command)
  @handlers ||= {}
  @handlers.fetch(command.to_s) do |command|
    if superclass.respond_to?(:find_handler)
      self.superclass.find_handler(command)
    else
      nil
    end
  end
end

.handle(command, handler) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 12

def handle(command, handler)
  @handlers ||= {}
  @handlers[command.to_s] = handler
end

Instance Method Details

#extract_options(data) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 58

def extract_options(data)
  if data[1].is_a?(Hash)
    [data[0], data[1], data.drop(2)]
  else
    [data[0], {}, data.drop(1)]
  end
end

#render(v) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 36

def render(v)
  return '' if v.empty?

  if v.first.starts_with? '@'
    render_at_command(v)
  else
    render_vector(v)
  end
end

#render_at_command(v) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 46

def render_at_command(v)
  command = v.first[1..-1]
  handler = find_handler(command)
  if !handler.nil?
    dispatch_command_handler(handler, v)
  elsif delegate.present? && delegate.respond_to?(:call)
    delegate.call(v)
  else
    ''
  end
end

#render_raw(data) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 106

def render_raw(data)
  data.drop(1).join.html_safe
end

#render_template_command(v) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 110

def render_template_command(v)
  command, options, content = extract_options(v)

  options = options.inject({}) do |options, (key, value)|
    if %w(class style).include?(key.to_s) || key.to_s.starts_with?('data-')
      options[key] = value
    else
      options["data-#{key.to_s}"] = value
    end
    options
  end
  if %w(@template @wizard).include?(command)
    options["data-application-name"] ||= Pigeon.config.application_name
    options["data-twitter-path"] = Pigeon::Engine.routes.url_helpers.twitter_path
  end

  case command
  when '@wizard'
    render ["div.pigeon.pigeon_wizard", options] + content
  when '@page'
    render ["div.pigeon_wizard_page", options] + content
  when '@template'
    render ["div.pigeon.pigeon_template", options] + content
  else
    ''
  end
end

#render_vector(v) ⇒ Object 



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# File 'app/helpers/pigeon/renderer/base.rb', line 66

def render_vector(v)
  selector, user_options, content = extract_options(v)
  tag_name, options = parse_tag_name(selector)

  options.update(user_options.with_indifferent_access) do |key, oldval, newval|
    case key.to_s
    when "id"
      oldval
    when "class"
      oldval + " " + newval
    else
      newval
    end
  end

  if tag_name.downcase == 'img'
    if URI(path = options[:src]).relative?
      options[:src] = image_path(path)
    end
  end

  if content.empty?
    if %w(br meta img link script hr).include? tag_name.downcase
      tag tag_name, options
    else
      content_tag tag_name, '', options
    end
  else
    content_html = safe_join(content.map do |elt|
      case elt
      when Array
        render(elt)
      else
        elt
      end
    end)
    content_tag tag_name, content_html, options
  end
end