Added time_tag helper to AP for HTML5 time tag [#5919 state:resolved]

Signed-off-by: Santiago Pastorino <santiago@wyeworks.com>

actionpack/lib/action_view/helpers/date_helper.rb

@@ -566,6 +566,25 @@ module ActionView
       def select_year(date, options = {}, html_options = {})
         DateTimeSelector.new(date, options, html_options).select_year
       end
+      
+      # Returns an html time tag for the given date or time.
+      #
+      # ==== Examples
+      #   time_tag Date.today  # =>
+      #     <time datetime="2010-11-04">November 04, 2010</time>
+      #   time_tag Time.now  # =>
+      #     <time datetime="2010-11-04T17:55:45+01:00">November 04, 2010 17:55</time>
+      #   time_tag Date.yesterday, 'Yesterday'  # =>
+      #     <time datetime="2010-11-03">Yesterday</time>
+      #   time_tag Date.today, :pubdate => true  # =>
+      #     <time datetime="2010-11-04" pubdate="pubdate">November 04, 2010</time>
+      #
+      def time_tag(date_or_time, *args)
+        options  = args.extract_options!
+        content  = args.first || I18n.l(date_or_time, :format => :long)
+        datetime = date_or_time.acts_like?(:time) ? date_or_time.xmlschema : date_or_time.rfc3339
+        content_tag :time, content, options.reverse_merge(:datetime => datetime)
+      end
     end
 
     class DateTimeSelector #:nodoc:

actionpack/lib/action_view/helpers/tag_helper.rb

@@ -14,7 +14,7 @@ module ActionView
       BOOLEAN_ATTRIBUTES = %w(disabled readonly multiple checked autobuffer
                            autoplay controls loop selected hidden scoped async
                            defer reversed ismap seemless muted required
-                           autofocus novalidate formnovalidate open).to_set
+                           autofocus novalidate formnovalidate open pubdate).to_set
       BOOLEAN_ATTRIBUTES.merge(BOOLEAN_ATTRIBUTES.map {|attribute| attribute.to_sym })
 
       # Returns an empty HTML tag of type +name+ which by default is XHTML

actionpack/test/template/date_helper_test.rb

@@ -2699,7 +2699,27 @@ class DateHelperTest < ActionView::TestCase
     assert date_select("post", "written_on", :default => Time.local(2006, 9, 19, 15, 16, 35), :include_blank => true).html_safe?
     assert time_select("post", "written_on", :ignore_date => true).html_safe?
   end
-
+    
+  def test_time_tag_with_date
+    date = Date.today
+    expected = "<time datetime=\"#{date.rfc3339}\">#{I18n.l(date, :format => :long)}</time>"
+    assert_equal expected, time_tag(date)
+  end
+  
+  def test_time_tag_with_time
+    time = Time.now
+    expected = "<time datetime=\"#{time.xmlschema}\">#{I18n.l(time, :format => :long)}</time>"
+    assert_equal expected, time_tag(time)
+  end
+    
+  def test_time_tag_pubdate_option
+    assert_match /<time.*pubdate="pubdate">.*<\/time>/, time_tag(Time.now, :pubdate => true)
+  end
+    
+  def test_time_tag_with_given_text
+    assert_match /<time.*>Right now<\/time>/, time_tag(Time.now, 'Right now')
+  end
+  
   protected
     def with_env_tz(new_tz = 'US/Eastern')
       old_tz, ENV['TZ'] = ENV['TZ'], new_tz