Use rails_autosize_jquery

best_in_place.gemspec

@@ -25,6 +25,7 @@ DESC
   s.require_paths = ["lib"]
 
   s.add_runtime_dependency 'actionpack', '>= 3.2'
+  s.add_runtime_dependency 'rails_autosize_jquery', '3.0.15'
   s.add_runtime_dependency 'railties', '>= 3.2'
 
 end

lib/assets/javascripts/best_in_place.js

@@ -574,7 +574,7 @@ BestInPlaceEditor.forms = {
 
             // set width and height of textarea
             jQuery(this.element.find("textarea")[0]).css({'min-width': width, 'min-height': height});
-            jQuery(this.element.find("textarea")[0]).autosize();
+            autosize(this.element.find("textarea")[0]);
 
             this.element.find("textarea")[0].focus();
             this.element.find("form").bind('submit', {editor: this}, BestInPlaceEditor.forms.textarea.submitHandler);

lib/best_in_place/engine.rb

@@ -1,5 +1,6 @@
 module BestInPlace
   class Engine < Rails::Engine
+    require 'rails_autosize_jquery'
     initializer 'best_in_place' do
       ActionView::Base.send(:include, BestInPlace::Helper)
       ActionController::Base.send(:include, BestInPlace::ControllerExtensions)