<?xml version="1.0" encoding="iso-8859-1"?> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html> <head> <title>build_observer (ActionView::Helpers::PrototypeHelper)</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" /> <link rel="stylesheet" href="../../../.././rdoc-style.css" type="text/css" media="screen" /> </head> <body class="standalone-code"> <pre><span class="ruby-comment cmt"># File lib/action_view/helpers/prototype_helper.rb, line 1075</span> <span class="ruby-keyword kw">def</span> <span class="ruby-identifier">build_observer</span>(<span class="ruby-identifier">klass</span>, <span class="ruby-identifier">name</span>, <span class="ruby-identifier">options</span> = {}) <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:with</span>] <span class="ruby-operator">&&</span> (<span class="ruby-identifier">options</span>[<span class="ruby-identifier">:with</span>] <span class="ruby-operator">!~</span> <span class="ruby-regexp re">/[\{=(.]/</span>) <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:with</span>] = <span class="ruby-node">"'#{options[:with]}=' + encodeURIComponent(value)"</span> <span class="ruby-keyword kw">else</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:with</span>] <span class="ruby-operator">||=</span> <span class="ruby-value str">'value'</span> <span class="ruby-keyword kw">unless</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:function</span>] <span class="ruby-keyword kw">end</span> <span class="ruby-identifier">callback</span> = <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:function</span>] <span class="ruby-operator">||</span> <span class="ruby-identifier">remote_function</span>(<span class="ruby-identifier">options</span>) <span class="ruby-identifier">javascript</span> = <span class="ruby-node">"new #{klass}('#{name}', "</span> <span class="ruby-identifier">javascript</span> <span class="ruby-operator"><<</span> <span class="ruby-node">"#{options[:frequency]}, "</span> <span class="ruby-keyword kw">if</span> <span class="ruby-identifier">options</span>[<span class="ruby-identifier">:frequency</span>] <span class="ruby-identifier">javascript</span> <span class="ruby-operator"><<</span> <span class="ruby-value str">"function(element, value) {"</span> <span class="ruby-identifier">javascript</span> <span class="ruby-operator"><<</span> <span class="ruby-node">"#{callback}}"</span> <span class="ruby-identifier">javascript</span> <span class="ruby-operator"><<</span> <span class="ruby-value str">")"</span> <span class="ruby-identifier">javascript_tag</span>(<span class="ruby-identifier">javascript</span>) <span class="ruby-keyword kw">end</span></pre> </body> </html>