Sha256: 0eb067f61a629e8242e8856078ab2e282602d8218330e03410284920e23af571
Contents?: true
Size: 1.66 KB
Versions: 21
Compression:
Stored size: 1.66 KB
Contents
require 'forwardable'
module SimpleNavigation
module Renderer
# This is the base class for all renderers.
#
# A renderer is responsible for rendering an ItemContainer and its containing items to HTML.
class Base
extend Forwardable
attr_reader :options, :adapter
def_delegators :adapter, :link_to, :content_tag
def initialize(options) #:nodoc:
@options = options
@adapter = SimpleNavigation.adapter
end
def expand_all?
!!options[:expand_all]
end
def level
options[:level] || :all
end
def skip_if_empty?
!!options[:skip_if_empty]
end
def include_sub_navigation?(item)
consider_sub_navigation?(item) && expand_sub_navigation?(item)
end
def render_sub_navigation_for(item)
item.sub_navigation.render(self.options)
end
# Renders the specified ItemContainer to HTML.
#
# When implementing a renderer, please consider to call include_sub_navigation? to determin
# whether an item's sub_navigation should be rendered or not.
#
def render(item_container)
raise 'subclass responsibility'
end
protected
def consider_sub_navigation?(item)
return false if item.sub_navigation.nil?
case level
when :all
return true
when Integer
return false
when Range
return item.sub_navigation.level <= level.max
end
false
end
def expand_sub_navigation?(item)
expand_all? || item.selected?
end
end
end
end
Version data entries
21 entries across 21 versions & 2 rubygems