Fix mangling of wikipedia links

[rails.git] / app / helpers / browse_helper.rb

diff --git a/app/helpers/browse_helper.rb b/app/helpers/browse_helper.rb
index 34302a8af2d7f8af01c963d1b7ba1b2059216742..ff702aed11f7a0ac04a0d284c604b4d3f467c9d8 100644 (file)
--- a/app/helpers/browse_helper.rb
+++ b/app/helpers/browse_helper.rb
@@ -2,4 +2,78 @@ module BrowseHelper
   def link_to_page(page, page_param)
     return link_to(page, page_param => page)
   end
   def link_to_page(page, page_param)
     return link_to(page, page_param => page)
   end

+  
+  def printable_name(object, version=false)
+    name = t 'printable_name.with_id', :id => object.id.to_s
+    if version
+      name = t 'printable_name.with_version', :id => name, :version => object.version.to_s
+    end
+    if object.tags.include? "name:#{I18n.locale}"
+      name = t 'printable_name.with_name',  :name => object.tags["name:#{I18n.locale}"].to_s, :id => name
+    elsif object.tags.include? 'name'
+      name = t 'printable_name.with_name',  :name => object.tags['name'].to_s, :id => name
+    end
+    return name
+  end
+
+  def format_key(key)
+    if url = wiki_link("key", key)
+      link_to h(key), url, :title => t('browse.tag_details.wiki_link.key', :key => key)
+    else
+      h(key)
+    end
+  end
+
+  def format_value(key, value)
+    if wp = wikipedia_link(key, value)
+      link_to h(wp[:title]), wp[:url], :title => t('browse.tag_details.wikipedia_link', :page => wp[:title])
+    elsif url = wiki_link("tag", "#{key}=#{value}")
+      link_to h(value), url, :title => t('browse.tag_details.wiki_link.tag', :key => key, :value => value)
+    else
+      linkify h(value)
+    end
+  end
+
+private
+
+  def wiki_link(type, lookup)
+    locale = I18n.locale.to_s
+
+    if page = WIKI_PAGES[locale][type][lookup] rescue nil
+      url = "http://wiki.openstreetmap.org/wiki/#{page}?uselang=#{locale}"
+    elsif page = WIKI_PAGES["en"][type][lookup] rescue nil
+      url = "http://wiki.openstreetmap.org/wiki/#{page}?uselang=#{locale}"
+    end
+
+    return url
+  end
+
+  def wikipedia_link(key, value)
+    # Some k/v's are wikipedia=http://en.wikipedia.org/wiki/Full%20URL
+    return nil if value =~ /^http:\/\//
+
+    if key == "wikipedia"
+      # This regex should match Wikipedia language codes, everything
+      # from de to zh-classical
+      if value =~ /^([a-z-]{2,12}):(.+)$/
+        # Value is <lang>:<title> so split it up
+        lang  = $1
+        value = $2
+      else
+        # Value is <title> so default to English Wikipedia
+        lang = 'en'
+      end
+    elsif key =~ /^wikipedia:(\S+)$/
+      # Language is in the key, so assume value is a simple title
+      lang = $1
+    else
+      # Not a wikipedia key!
+      return nil
+    end
+
+    return {
+      :url => "http://#{lang}.wikipedia.org/wiki/#{value}?uselang=#{I18n.locale}",
+      :title => value
+    }
+  end

 end
 end