From 87a677347e9df53f4746aa95f1f4e490d03a8e0e Mon Sep 17 00:00:00 2001
From: Rodrigo Souto <rodrigo@colivre.coop.br>
Date: Thu, 5 Jul 2012 17:52:44 -0300
Subject: [PATCH] Including a helper method for using token_input

---
 app/helpers/application_helper.rb | 49 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 49 insertions(+), 0 deletions(-)

diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 2aaf9a3..fae3f0e 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1337,4 +1337,53 @@ module ApplicationHelper
       _("Are you sure that you want to remove the item \"#{article.name}\"?")
     end
   end
+
+  def token_input_field_tag(name, element_id, search_action, options = {}, text_field_options = {}, html_options = {})
+    options[:min_chars] ||= 3
+    options[:hint_text] ||= _("Type in a search term")
+    options[:no_results_text] ||= _("No results")
+    options[:searching_text] ||= _("Searching...")
+    options[:search_delay] ||= 1000
+    options[:prevent_duplicates] ||=  true
+    options[:backspace_delete_item] ||= false
+    options[:focus] ||= false
+    options[:avoid_enter] ||= true
+    options[:on_result] ||= 'null'
+    options[:on_add] ||= 'null'
+    options[:on_delete] ||= 'null'
+    options[:on_ready] ||= 'null'
+
+    result = text_field_tag(name, nil, text_field_options.merge(html_options.merge({:id => element_id})))
+    result +=
+    "
+    <script type='text/javascript'>
+      jQuery('##{element_id}')
+      .tokenInput('#{url_for(search_action)}', {
+        minChars: #{options[:min_chars].to_json},
+        prePopulate: #{options[:pre_populate].to_json},
+        hintText: #{options[:hint_text].to_json},
+        noResultsText: #{options[:no_results_text].to_json},
+        searchingText: #{options[:searching_text].to_json},
+        searchDelay: #{options[:serach_delay].to_json},
+        preventDuplicates: #{options[:prevent_duplicates].to_json},
+        backspaceDeleteItem: #{options[:backspace_delete_item].to_json},
+        queryParam: #{name.to_json},
+        tokenLimit: #{options[:token_limit].to_json},
+        onResult: #{options[:on_result]},
+        onAdd: #{options[:on_add]},
+        onDelete: #{options[:on_delete]},
+        onReady: #{options[:on_ready]},
+      })
+    "
+    result += options[:focus] ? ".focus();" : ";"
+    if options[:avoid_enter]
+      result += "jQuery('#token-input-#{element_id}')
+                    .live('keydown', function(event){
+                    if(event.keyCode == '13') return false;
+                  });"
+    end
+    result += "</script>"
+    result
+  end
+
 end
--
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