paper-input-addon-behavior.js

/**
@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
*/
import '@polymer/polymer/polymer-legacy.js';

/**
 * Use `Polymer.PaperInputAddonBehavior` to implement an add-on for
 * `<paper-input-container>`. A add-on appears below the input, and may display
 * information based on the input value and validity such as a character counter
 * or an error message.
 * @polymerBehavior
 */
export const PaperInputAddonBehavior = {
  attached: function() {
    this.fire('addon-attached');
  },

  /**
   * The function called by `<paper-input-container>` when the input value or
   * validity changes.
   * @param {{
   *   invalid: boolean,
   *   inputElement: (Element|undefined),
   *   value: (string|undefined)
   * }} state -
   *     inputElement: The input element.
   *     value: The input value.
   *     invalid: True if the input value is invalid.
   */
  update: function(state) {}

};