text: /**
   * @license
   * Copyright 2015 Google Inc. All Rights Reserved.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *      http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  (function () {
    'use strict';
  
    /**
     * Class constructor for Radio MDL component.
     * Implements MDL component design pattern defined at:
     * https://github.com/jasonmayes/mdl-component-design-pattern
     *
     * @constructor
     * @param {HTMLElement} element The element that will be upgraded.
     */
    var MaterialRadio = function MaterialRadio(element) {
      this.element_ = element;
  
      // Initialize instance.
      this.init();
    };
    window['MaterialRadio'] = MaterialRadio;
  
    /**
     * Store constants in one place so they can be updated easily.
     *
     * @enum {string | number}
     * @private
     */
    MaterialRadio.prototype.Constant_ = {
      TINY_TIMEOUT: 0.001
    };
  
    /**
     * Store strings for class names defined by this component that are used in
     * JavaScript. This allows us to simply change it in one place should we
     * decide to modify at a later date.
     *
     * @enum {string}
     * @private
     */
    MaterialRadio.prototype.CssClasses_ = {
      IS_FOCUSED: 'is-focused',
      IS_DISABLED: 'is-disabled',
      IS_CHECKED: 'is-checked',
      IS_UPGRADED: 'is-upgraded',
      JS_RADIO: 'mdl-js-radio',
      RADIO_BTN: 'mdl-radio__button',
      RADIO_OUTER_CIRCLE: 'mdl-radio__outer-circle',
      RADIO_INNER_CIRCLE: 'mdl-radio__inner-circle',
      RIPPLE_EFFECT: 'mdl-js-ripple-effect',
      RIPPLE_IGNORE_EVENTS: 'mdl-js-ripple-effect--ignore-events',
      RIPPLE_CONTAINER: 'mdl-radio__ripple-container',
      RIPPLE_CENTER: 'mdl-ripple--center',
      RIPPLE: 'mdl-ripple'
    };
  
    /**
     * Handle change of state.
     *
     * @param {Event} event The event that fired.
     * @private
     */
    MaterialRadio.prototype.onChange_ = function (event) {
      // Since other radio buttons don't get change events, we need to look for
      // them to update their classes.
      var radios = document.getElementsByClassName(this.CssClasses_.JS_RADIO);
      for (var i = 0; i < radios.length; i++) {
        var button = radios[i].querySelector('.' + this.CssClasses_.RADIO_BTN);
        // Different name == different group, so no point updating those.
        if (button.getAttribute('name') === this.btnElement_.getAttribute('name')) {
          if (typeof radios[i]['MaterialRadio'] !== 'undefined') {
            radios[i]['MaterialRadio'].updateClasses_();
          }
        }
      }
    };
  
    /**
     * Handle focus.
     *
     * @param {Event} event The event that fired.
     * @private
     */
    MaterialRadio.prototype.onFocus_ = function (event) {
      this.element_.classList.add(this.CssClasses_.IS_FOCUSED);
    };
  
    /**
     * Handle lost focus.
     *
     * @param {Event} event The event that fired.
     * @private
     */
    MaterialRadio.prototype.onBlur_ = function (event) {
      this.element_.classList.remove(this.CssClasses_.IS_FOCUSED);
    };
  
    /**
     * Handle mouseup.
     *
     * @param {Event} event The event that fired.
     * @private
     */
    MaterialRadio.prototype.onMouseup_ = function (event) {
      this.blur_();
    };
  
    /**
     * Update classes.
     *
     * @private
     */
    MaterialRadio.prototype.updateClasses_ = function () {
      this.checkDisabled();
      this.checkToggleState();
    };
  
    /**
     * Add blur.
     *
     * @private
     */
    MaterialRadio.prototype.blur_ = function () {
  
      // TODO: figure out why there's a focus event being fired after our blur,
      // so that we can avoid this hack.
      window.setTimeout(function () {
        this.btnElement_.blur();
      }.bind(this), /** @type {number} */(this.Constant_.TINY_TIMEOUT));
    };
  
    // Public methods.
  
    /**
     * Check the components disabled state.
     *
     * @public
     */
    MaterialRadio.prototype.checkDisabled = function () {
      if (this.btnElement_.disabled) {
        this.element_.classList.add(this.CssClasses_.IS_DISABLED);
      } else {
        this.element_.classList.remove(this.CssClasses_.IS_DISABLED);
      }
    };
    MaterialRadio.prototype['checkDisabled'] =
      MaterialRadio.prototype.checkDisabled;
  
    /**
     * Check the components toggled state.
     *
     * @public
     */
    MaterialRadio.prototype.checkToggleState = function () {
      if (this.btnElement_.checked) {
        this.element_.classList.add(this.CssClasses_.IS_CHECKED);
      } else {
        this.element_.classList.remove(this.CssClasses_.IS_CHECKED);
      }
    };
    MaterialRadio.prototype['checkToggleState'] =
      MaterialRadio.prototype.checkToggleState;
  
    /**
     * Disable radio.
     *
     * @public
     */
    MaterialRadio.prototype.disable = function () {
      this.btnElement_.disabled = true;
      this.updateClasses_();
    };
    MaterialRadio.prototype['disable'] = MaterialRadio.prototype.disable;
  
    /**
     * Enable radio.
     *
     * @public
     */
    MaterialRadio.prototype.enable = function () {
      this.btnElement_.disabled = false;
      this.updateClasses_();
    };
    MaterialRadio.prototype['enable'] = MaterialRadio.prototype.enable;
  
    /**
     * Check radio.
     *
     * @public
     */
    MaterialRadio.prototype.check = function () {
      this.btnElement_.checked = true;
      this.onChange_(null);
    };
    MaterialRadio.prototype['check'] = MaterialRadio.prototype.check;
  
    /**
     * Uncheck radio.
     *
     * @public
     */
    MaterialRadio.prototype.uncheck = function () {
      this.btnElement_.checked = false;
      this.onChange_(null);
    };
    MaterialRadio.prototype['uncheck'] = MaterialRadio.prototype.uncheck;
  
    /**
     * Initialize element.
     */
    MaterialRadio.prototype.init = function () {
      if (this.element_) {
        this.btnElement_ = this.element_.querySelector('.' +
          this.CssClasses_.RADIO_BTN);
  
        this.boundChangeHandler_ = this.onChange_.bind(this);
        this.boundFocusHandler_ = this.onChange_.bind(this);
        this.boundBlurHandler_ = this.onBlur_.bind(this);
        this.boundMouseUpHandler_ = this.onMouseup_.bind(this);
  
        var outerCircle = document.createElement('span');
        outerCircle.classList.add(this.CssClasses_.RADIO_OUTER_CIRCLE);
  
        var innerCircle = document.createElement('span');
        innerCircle.classList.add(this.CssClasses_.RADIO_INNER_CIRCLE);
  
        this.element_.appendChild(outerCircle);
        this.element_.appendChild(innerCircle);
  
        var rippleContainer;
        if (this.element_.classList.contains(
          this.CssClasses_.RIPPLE_EFFECT)) {
          this.element_.classList.add(
            this.CssClasses_.RIPPLE_IGNORE_EVENTS);
          rippleContainer = document.createElement('span');
          rippleContainer.classList.add(
            this.CssClasses_.RIPPLE_CONTAINER);
          rippleContainer.classList.add(this.CssClasses_.RIPPLE_EFFECT);
          rippleContainer.classList.add(this.CssClasses_.RIPPLE_CENTER);
          rippleContainer.addEventListener('mouseup', this.boundMouseUpHandler_);
  
          var ripple = document.createElement('span');
          ripple.classList.add(this.CssClasses_.RIPPLE);
  
          rippleContainer.appendChild(ripple);
          this.element_.appendChild(rippleContainer);
        }
  
        this.btnElement_.addEventListener('change', this.boundChangeHandler_);
        this.btnElement_.addEventListener('focus', this.boundFocusHandler_);
        this.btnElement_.addEventListener('blur', this.boundBlurHandler_);
        this.element_.addEventListener('mouseup', this.boundMouseUpHandler_);
  
        this.updateClasses_();
        this.element_.classList.add(this.CssClasses_.IS_UPGRADED);
      }
    };
  
    // The component registers itself. It can assume componentHandler is available
    // in the global scope.
    componentHandler.register({
      constructor: MaterialRadio,
      classAsString: 'MaterialRadio',
      cssClass: 'mdl-js-radio',
      widget: true
    });
  })();
  export default MaterialRadio;