ensure getPrototypeOf is defined in old browsers

aya-soft · Jun 14, 2013 · 5d8c249 · 5d8c249
1 parent 0168b2f
commit 5d8c249
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diff --git a/app/assets/javascripts/active_scaffold.js.erb b/app/assets/javascripts/active_scaffold.js.erb
@@ -1,5 +1,6 @@
 <% case ActiveScaffold.js_framework %>
 <% when :jquery %>
+<% require_asset "getprototypeof" %>
 <% if Jquery::Rails.const_defined? 'JQUERY_UI_VERSION' %>
 <% require_asset "jquery-ui" %>
 <% require_asset "jquery-ui-timepicker-addon" %>

diff --git a/vendor/assets/javascripts/getprototypeof.js b/vendor/assets/javascripts/getprototypeof.js
@@ -0,0 +1,12 @@
+if ( typeof Object.getPrototypeOf !== "function" ) {
+  if ( typeof "test".__proto__ === "object" ) {
+    Object.getPrototypeOf = function(object){
+      return object.__proto__;
+    };
+  } else {
+    Object.getPrototypeOf = function(object){
+      // May break if the constructor has been tampered with
+      return object.constructor.prototype;
+    };
+  }
+}