Merge branch 'master' into openstreetbugs

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

diff --git a/app/helpers/browse_helper.rb b/app/helpers/browse_helper.rb
index 1d0b02df03e88229b7b86b72bb626c04d4ae0357..f121f2f0bb3cd61a5e0ea9c89e29e7f13340cdc4 100644 (file)
--- a/app/helpers/browse_helper.rb
+++ b/app/helpers/browse_helper.rb
@@ -2,7 +2,7 @@ module BrowseHelper
   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
@@ -16,6 +16,14 @@ module BrowseHelper
     return name
   end
 
+  def link_class(type, object)
+    return type + " " + h(icon_tags(object).join(' '))
+  end
+
+  def link_title(object)
+    return h(icon_tags(object).map { |k,v| k + '=' + v }.to_sentence)
+  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)
@@ -25,7 +33,9 @@ module BrowseHelper
   end
 
   def format_value(key, value)
-    if url = wiki_link("tag", "#{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)
@@ -34,6 +44,15 @@ module BrowseHelper
 
 private
 
+  ICON_TAGS = [ 
+    "aeroway", "amenity", "barrier", "building", "highway", "landuse",
+    "leisure", "man_made", "natural", "railway", "shop", "tourism", "waterway"
+  ]
+
+  def icon_tags(object)
+    object.tags.find_all { |k,v| ICON_TAGS.include? k }
+  end
+
   def wiki_link(type, lookup)
     locale = I18n.locale.to_s
 
@@ -45,4 +64,33 @@ private
 
     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