X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/98bfaace9aeba7fb387596cc16b2e661506173c6..bf4d8fc2d0e9fa8f828ff9a6b1dc7c6e0a41170b:/lib/rich_text.rb diff --git a/lib/rich_text.rb b/lib/rich_text.rb index 56d358bd8..bdf9c37ca 100644 --- a/lib/rich_text.rb +++ b/lib/rich_text.rb @@ -3,6 +3,8 @@ module RichText "Business Description:", "Additional Keywords:" ].freeze + MAX_DESCRIPTION_LENGTH = 500 + def self.new(format, text) case format when "html" then HTML.new(text || "") @@ -49,6 +51,18 @@ module RichText (spammy_phrases * 40) end + def image + nil + end + + def image_alt + nil + end + + def description + nil + end + protected def simple_format(text) @@ -80,12 +94,82 @@ module RichText class Markdown < Base def to_html - linkify(sanitize(Kramdown::Document.new(self).to_html), :all) + linkify(sanitize(document.to_html), :all) end def to_text to_s end + + def image + @image_element = first_image_element(document.root) unless defined? @image_element + @image_element.attr["src"] if @image_element + end + + def image_alt + @image_element = first_image_element(document.root) unless defined? @image_element + @image_element.attr["alt"] if @image_element + end + + def description + return @description if defined? @description + + @description = first_truncated_text_content(document.root) + end + + private + + def document + @document ||= Kramdown::Document.new(self) + end + + def first_image_element(element) + return element if image?(element) && element.attr["src"].present? + + element.children.find do |child| + nested_image = first_image_element(child) + break nested_image if nested_image + end + end + + def first_truncated_text_content(element) + if paragraph?(element) + truncated_text_content(element) + else + element.children.find do |child| + text = first_truncated_text_content(child) + break text unless text.nil? + end + end + end + + def truncated_text_content(element) + text = "" + + append_text = lambda do |child| + if child.type == :text + text << child.value + else + child.children.each do |c| + append_text.call(c) + break if text.length > MAX_DESCRIPTION_LENGTH + end + end + end + append_text.call(element) + + return nil if text.blank? + + text.truncate(MAX_DESCRIPTION_LENGTH) + end + + def image?(element) + element.type == :img || (element.type == :html_element && element.value == "img") + end + + def paragraph?(element) + element.type == :p || (element.type == :html_element && element.value == "p") + end end class Text < Base