views: refactor quick search forms.

app/helpers/application_helper.rb

@@ -158,6 +158,14 @@ module ApplicationHelper
     tag.input value: "Preview", type: "button", class: "dtext-preview-button", "data-input-id": input_id, "data-preview-id": preview_id
   end
 
+  def quick_search_form_for(attribute, url, name, autocomplete: nil, &block)
+    tag.li do
+      search_form_for(url, classes: "quick-search-form one-line-form") do |f|
+        f.input attribute, label: false, placeholder: "Search #{name}", input_html: { id: nil, "data-autocomplete": autocomplete }
+      end
+    end
+  end
+
   def search_form_for(url, classes: "inline-form", &block)
     defaults = { required: false }
     html_options = { autocomplete: "off", class: "search-form #{classes}" }