Merge pull request #14 from tomhughes/routing

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

diff --git a/app/helpers/browse_helper.rb b/app/helpers/browse_helper.rb
index c86ad5b71c0701bd1b3f65a7ce7381b4afcc74ad..b192a63d558ee4c4ba8bd7e06dc815536168a1fa 100644 (file)
--- a/app/helpers/browse_helper.rb
+++ b/app/helpers/browse_helper.rb
@@ -1,2 +1,143 @@
 module BrowseHelper
+  def printable_name(object, version=false)
+    if object.id.is_a?(Array)
+      id = object.id[0]
+    else
+      id = object.id
+    end
+    name = t 'printable_name.with_id', :id => id.to_s
+    if version
+      name = t 'printable_name.with_version', :id => name, :version => object.version.to_s
+    end
+
+    # don't look at object tags if redacted, so as to avoid giving
+    # away redacted version tag information.
+    unless object.redacted?
+      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
+    end
+
+    return name
+  end
+
+  def link_class(type, object)
+    classes = [ type ]
+
+    if object.redacted?
+      classes << "deleted"
+    else
+      classes += icon_tags(object).flatten.map { |t| h(t) }
+      classes << "deleted" unless object.visible?
+    end
+
+    classes.join(" ")
+  end
+
+  def link_title(object)
+    if object.redacted?
+      ""
+    else
+      h(icon_tags(object).map { |k,v| k + '=' + v }.to_sentence)
+    end
+  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
+
+  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 = [
+    "aeroway", "amenity", "barrier", "building", "highway", "historic", "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
+
+    # update-wiki-pages does s/ /_/g on keys before saving them, we
+    # have to replace spaces with underscore so we'll link
+    # e.g. `source=Isle of Man Government aerial imagery (2001)' to
+    # the correct page.
+    lookup_us = lookup.tr(" ", "_")
+
+    if page = WIKI_PAGES[locale][type][lookup_us] rescue nil
+      url = "http://wiki.openstreetmap.org/wiki/#{page}?uselang=#{locale}"
+    elsif page = WIKI_PAGES["en"][type][lookup_us] 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 =~ /^https?:\/\//
+
+    if key == "wikipedia"
+      # This regex should match Wikipedia language codes, everything
+      # from de to zh-classical
+      if value =~ /^([a-z-]{2,12}):(.+)$/i
+        # Value is <lang>:<title> so split it up
+        # Note that value is always left as-is, see: https://trac.openstreetmap.org/ticket/4315
+        lang  = $1
+      else
+        # Value is <title> so default to English Wikipedia
+        lang = 'en'
+      end
+    elsif key =~ /^wikipedia:(\S+)$/
+      # Language is in the key, so assume value is the title
+      lang = $1
+    else
+      # Not a wikipedia key!
+      return nil
+    end
+
+    if value =~ /^([^#]*)(#.*)/ then
+      # Contains a reference to a section of the wikipedia article
+      # Must break it up to correctly build the url
+      value = $1
+      section = $2
+    else
+      section = ""
+    end
+
+    return {
+      :url => "http://#{lang}.wikipedia.org/wiki/#{value}?uselang=#{I18n.locale}#{section}",
+      :title => value + section
+    }
+  end
 end