<!-- @license Copyright (c) 2015 The Polymer Project Authors. All rights reserved. This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as part of the polymer project is also subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt --> <link rel="import" href="../../polymer/polymer.html"> <link rel="import" href="../iron-validatable-behavior.html"> <script> Polymer({ is: 'validatable-input', extends: 'input', properties: { invalid: { notify: true, type: Boolean, value: false } }, behaviors: [ Polymer.IronValidatableBehavior ], listeners: { 'input': '_onInput' }, _onInput: function(event) { this.invalid = !this.validate(event.target.value); } }); </script>