diff -r 000000000000 -r 6474c204b198 dom/interfaces/html/nsIDOMHTMLSelectElement.idl
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dom/interfaces/html/nsIDOMHTMLSelectElement.idl	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,60 @@
+/* -*- Mode: IDL; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIDOMHTMLElement.idl"
+#include "nsIDOMHTMLOptionsCollection.idl"
+
+/**
+ * The nsIDOMHTMLSelectElement interface is the interface to a [X]HTML
+ * select element.
+ *
+ * This interface is trying to follow the DOM Level 2 HTML specification:
+ * http://www.w3.org/TR/DOM-Level-2-HTML/
+ *
+ * with changes from the work-in-progress WHATWG HTML specification:
+ * http://www.whatwg.org/specs/web-apps/current-work/
+ */
+
+interface nsIDOMValidityState;
+
+[scriptable, uuid(d8914a2d-3556-4b66-911c-a84c4394e7fa)]
+interface nsIDOMHTMLSelectElement : nsISupports
+{
+           attribute boolean                     autofocus;
+           attribute boolean                     disabled;
+  readonly attribute nsIDOMHTMLFormElement       form;
+           attribute boolean                     multiple;
+           attribute DOMString                   name;
+           attribute unsigned long               size;
+
+  readonly attribute DOMString                   type;
+
+  readonly attribute nsIDOMHTMLOptionsCollection options;
+           attribute unsigned long               length;
+  nsIDOMNode                item(in unsigned long index);
+  nsIDOMNode                namedItem(in DOMString name);
+  // This add method implementation means the following
+  // since IDL doesn't support overfload.
+  //   void add(in nsIDOMHTMLElement, [optional] in nsIDOMHTMLElement)
+  //   void add(in nsIDOMHTMLElement, in long)
+  void                      add(in nsIDOMHTMLElement element, 
+                                [optional] in nsIVariant before)
+                                                     raises(DOMException);   
+  void                      remove(in long index);
+
+  readonly attribute nsIDOMHTMLCollection  selectedOptions;
+           attribute long                  selectedIndex;
+           attribute DOMString             value;
+
+  // The following lines are part of the constraint validation API, see:
+  // http://www.whatwg.org/specs/web-apps/current-work/#the-constraint-validation-api
+  readonly attribute boolean             willValidate;
+  readonly attribute nsIDOMValidityState validity;
+  readonly attribute DOMString           validationMessage;
+  boolean checkValidity();
+  void setCustomValidity(in DOMString error);
+
+  attribute boolean                      required;
+};