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Contents
module Skyline::Rendering::Helpers::BreadCrumbHelper
# Helper to easily create breadcrumbs that are cut off in the middle.
#
# @param bc [Array<Array>] An array of arrays with two elements: [[title,url],[title,url]...]
# @param options [Hash] Options
#
# @option options :max_length [Integer] () Limit the max length in chars. Returns an array with nil element where
# something has been cut away.
#
# @return [Array<Array>] Array of arrays with the first element the title and as second element the url.
def bread_crumb(bc,options={})
if bc.kind_of? Skyline::ArticleVersion
page = bc
bc = bc.page.nesting.map{|p| [p.published_publication_data.andand.navigation_title,p.url]}
bc[-1][0] = page.data.navigation_title
end
if options[:max_length] && bc.size > 1
# always display the last page
b = [bc.pop]
length = b[-1][0].size
# then try to 'add' the first page if it fits
first = nil
if length + bc[0][0].to_s.size <= options[:max_length]
first = bc.shift
length += first[0].to_s.size
end
# try to add pages in between starting from the 2nd to last page and going back as long as it fits
bc.reverse.each do |p|
if length + p[0].to_s.size <= options[:max_length]
b.unshift(p)
length += p[0].to_s.size
else
b.unshift(nil)
break
end
end
b.unshift(first) if first
b
else
bc
end
end
end
Version data entries
6 entries across 6 versions & 2 rubygems