From 5b3bc3139a1b15054f26092eb95a5fbc8fdc07aa Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Thu, 16 Jun 2005 06:00:18 +0000
Subject: Added a third parameter to TextHelper#auto_link called href_options
 for specifying additional tag options on the links generated #1401
 [tyler.kovacs@gmail.com]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@1432 5ecf4fe2-1ee6-0310-87b1-e25e094e27de
---
 actionpack/CHANGELOG                              |  2 ++
 actionpack/lib/action_view/helpers/text_helper.rb | 13 ++++++++-----
 actionpack/test/template/text_helper_test.rb      |  3 +++
 3 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/actionpack/CHANGELOG b/actionpack/CHANGELOG
index b161b1d552..e49ae64a99 100644
--- a/actionpack/CHANGELOG
+++ b/actionpack/CHANGELOG
@@ -1,5 +1,7 @@
 *SVN*
 
+* Added a third parameter to TextHelper#auto_link called href_options for specifying additional tag options on the links generated #1401 [tyler.kovacs@gmail.com]. Example: auto_link(text, :all, { :target => "_blank" }) to have all the generated links open in a new window.
+
 * Fixed TextHelper#highlight to return the text, not nil, if the phrase is blank #1409 [patrick@lenz.sh]
 
 * Fixed TagHelper such that :name and 'name' keys in the options doesn't result in two attributes #1455 [take_tk]
diff --git a/actionpack/lib/action_view/helpers/text_helper.rb b/actionpack/lib/action_view/helpers/text_helper.rb
index 0abd8e79fa..a65a979343 100644
--- a/actionpack/lib/action_view/helpers/text_helper.rb
+++ b/actionpack/lib/action_view/helpers/text_helper.rb
@@ -1,3 +1,5 @@
+require File.dirname(__FILE__) + '/tag_helper'
+
 module ActionView
   module Helpers #:nodoc:
     # Provides a set of methods for working with text strings that can help unburden the level of inline Ruby code in the
@@ -116,11 +118,11 @@ module ActionView
       #   auto_link("Go to http://www.rubyonrails.com and say hello to david@loudthinking.com") =>
       #     Go to <a href="http://www.rubyonrails.com">http://www.rubyonrails.com</a> and
       #     say hello to <a href="mailto:david@loudthinking.com">david@loudthinking.com</a>
-      def auto_link(text, link = :all)
+      def auto_link(text, link = :all, href_options = {})
         case link
-          when :all             then auto_link_urls(auto_link_email_addresses(text))
+          when :all             then auto_link_urls(auto_link_email_addresses(text), href_options)
           when :email_addresses then auto_link_email_addresses(text)
-          when :urls            then auto_link_urls(text)
+          when :urls            then auto_link_urls(text, href_options)
         end
       end
 
@@ -191,13 +193,14 @@ module ActionView
         end
 
         # Turns all urls into clickable links.
-        def auto_link_urls(text)
+        def auto_link_urls(text, href_options = {})
           text.gsub(/(<\w+.*?>|[^=!:'"\/]|^)((?:http[s]?:\/\/)|(?:www\.))([^\s<]+\/?)([[:punct:]]|\s|<|$)/) do
             all, a, b, c, d = $&, $1, $2, $3, $4
             if a =~ /<a\s/i # don't replace URL's that are already linked
               all
             else
-              %(#{a}<a href="#{b=="www."?"http://www.":b}#{c}">#{b}#{c}</a>#{d})
+              extra_options = tag_options(href_options.stringify_keys) || ""
+              %(#{a}<a href="#{b=="www."?"http://www.":b}#{c}"#{extra_options}>#{b}#{c}</a>#{d})
             end
           end
         end
diff --git a/actionpack/test/template/text_helper_test.rb b/actionpack/test/template/text_helper_test.rb
index 81aca6f638..722f08a7cf 100644
--- a/actionpack/test/template/text_helper_test.rb
+++ b/actionpack/test/template/text_helper_test.rb
@@ -4,6 +4,7 @@ require File.dirname(__FILE__) + '/../../../activesupport/lib/active_support/cor
 
 class TextHelperTest < Test::Unit::TestCase
   include ActionView::Helpers::TextHelper
+  include ActionView::Helpers::TagHelper
   
   def test_simple_format
     assert_equal "<p>crazy\n<br /> cross\n<br /> platform linebreaks</p>", simple_format("crazy\r\n cross\r platform linebreaks")
@@ -77,6 +78,7 @@ class TextHelperTest < Test::Unit::TestCase
     email_result = %{<a href="mailto:#{email_raw}">#{email_raw}</a>}
     link_raw     = 'http://www.rubyonrails.com'
     link_result  = %{<a href="#{link_raw}">#{link_raw}</a>}
+    link_result_with_options  = %{<a href="#{link_raw}" target="_blank">#{link_raw}</a>}
     link2_raw    = 'www.rubyonrails.com'
     link2_result = %{<a href="http://#{link2_raw}">#{link2_raw}</a>}
 
@@ -90,6 +92,7 @@ class TextHelperTest < Test::Unit::TestCase
     assert_equal %(Go to #{link2_raw}), auto_link("Go to #{link2_raw}", :email_addresses)
     assert_equal %(<p>Link #{link2_result}</p>), auto_link("<p>Link #{link2_raw}</p>")
     assert_equal %(<p>#{link2_result} Link</p>), auto_link("<p>#{link2_raw} Link</p>")
+    assert_equal %(<p>Link #{link_result_with_options}</p>), auto_link("<p>Link #{link_raw}</p>", :all, {:target => "_blank"})
   end
 
   def test_sanitize_form
-- 
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