module BrowseHelper
+ def element_single_current_link(type, object, url)
+ link_to url, { :class => element_class(type, object), :title => element_title(object), :rel => (link_follow(object) if type == "node") } do
+ element_strikethrough object do
+ printable_element_name object
+ end
+ end
+ end
+
+ def element_list_item(type, object, &block)
+ tag.li :class => element_class(type, object), :title => element_title(object) do
+ element_strikethrough object, &block
+ end
+ end
+
+ def printable_element_name(object)
+ id = if object.id.is_a?(Array)
+ object.id[0]
+ else
+ object.id
+ end
+ name = id.to_s
+
+ # don't look at object tags if redacted, so as to avoid giving
+ # away redacted version tag information.
+ unless object.redacted?
+ available_locales = Locale.list(name_locales(object))
+
+ locale = available_locales.preferred(preferred_languages, :default => nil)
+
+ if object.tags.include? "name:#{locale}"
+ name = t "printable_name.with_name_html", :name => tag.bdi(object.tags["name:#{locale}"].to_s), :id => tag.bdi(name)
+ elsif object.tags.include? "name"
+ name = t "printable_name.with_name_html", :name => tag.bdi(object.tags["name"].to_s), :id => tag.bdi(name)
+ elsif object.tags.include? "ref"
+ name = t "printable_name.with_name_html", :name => tag.bdi(object.tags["ref"].to_s), :id => tag.bdi(name)
+ end
+ end
+
+ name
+ end
+
+ def printable_element_version(object)
+ t "printable_name.version", :version => object.version
+ end
+
+ def element_strikethrough(object, &block)
+ if object.redacted? || !object.visible?
+ tag.s(&block)
+ else
+ yield
+ end
+ end
+
+ def element_class(type, object)
+ classes = [type]
+ classes += icon_tags(object).flatten.map { |t| h(t) } unless object.redacted?
+ classes.join(" ")
+ end
+
+ def element_title(object)
+ if object.redacted?
+ ""
+ else
+ h(icon_tags(object).map { |k, v| "#{k}=#{v}" }.to_sentence)
+ end
+ end
+
+ def link_follow(object)
+ "nofollow" if object.tags.empty?
+ end
+
+ def type_and_paginated_count(type, pages)
+ if pages.page_count == 1
+ t "browse.changeset.#{type}",
+ :count => pages.item_count
+ else
+ t "browse.changeset.#{type}_paginated",
+ :x => pages.current_page.first_item,
+ :y => pages.current_page.last_item,
+ :count => pages.item_count
+ end
+ end
+
+ private
+
+ ICON_TAGS = %w[aeroway amenity barrier building highway historic landuse leisure man_made natural railway shop tourism waterway].freeze
+
+ def icon_tags(object)
+ object.tags.find_all { |k, _v| ICON_TAGS.include? k }.sort
+ end
+
+ def name_locales(object)
+ object.tags.keys.map { |k| Regexp.last_match(1) if k =~ /^name:(.*)$/ }.flatten
+ end
end