<!– @license Copyright © 2015 The Polymer Project Authors. All rights reserved. This code may only be used under the BSD style license found at polymer.github.io/LICENSE.txt The complete set of authors may be found at polymer.github.io/AUTHORS.txt The complete set of contributors may be found at 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 polymer.github.io/PATENTS.txt –>

<link rel=“import” href=“../polymer/polymer.html”> <link rel=“import” href=“../iron-checked-element-behavior/iron-checked-element-behavior.html”> <link rel=“import” href=“paper-inky-focus-behavior.html”>

<script>

/**
 * Use `Polymer.PaperCheckedElementBehavior` to implement a custom element
 * that has a `checked` property similar to `Polymer.IronCheckedElementBehavior`
 * and is compatible with having a ripple effect.
 * @polymerBehavior Polymer.PaperCheckedElementBehavior
 */
Polymer.PaperCheckedElementBehaviorImpl = {
  /**
   * Synchronizes the element's checked state with its ripple effect.
   */
  _checkedChanged: function() {
    Polymer.IronCheckedElementBehaviorImpl._checkedChanged.call(this);
    if (this.hasRipple()) {
      if (this.checked) {
        this._ripple.setAttribute('checked', '');
      } else {
        this._ripple.removeAttribute('checked');
      }
    }
  },

  /**
   * Synchronizes the element's `active` and `checked` state.
   */
  _buttonStateChanged: function() {
    Polymer.PaperRippleBehavior._buttonStateChanged.call(this);
    if (this.disabled) {
      return;
    }
    if (this.isAttached) {
      this.checked = this.active;
    }
  }
};

/** @polymerBehavior Polymer.PaperCheckedElementBehavior */
Polymer.PaperCheckedElementBehavior = [
  Polymer.PaperInkyFocusBehavior,
  Polymer.IronCheckedElementBehavior,
  Polymer.PaperCheckedElementBehaviorImpl
];

</script>