Bootstrap/js/dist/button.js

/*!
  * Bootstrap button.js v4.5.0 (https://getbootstrap.com/)
  * Copyright 2011-2020 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory(require('jquery')) :
  typeof define === 'function' && define.amd ? define(['jquery'], factory) :
  (global = global || self, global.Button = factory(global.jQuery));
}(this, (function ($) { 'use strict';

  $ = $ && Object.prototype.hasOwnProperty.call($, 'default') ? $['default'] : $;

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  /**
   * ------------------------------------------------------------------------
   * Constants
   * ------------------------------------------------------------------------
   */

  var NAME = 'button';
  var VERSION = '4.5.0';
  var DATA_KEY = 'bs.button';
  var EVENT_KEY = "." + DATA_KEY;
  var DATA_API_KEY = '.data-api';
  var JQUERY_NO_CONFLICT = $.fn[NAME];
  var CLASS_NAME_ACTIVE = 'active';
  var CLASS_NAME_BUTTON = 'btn';
  var CLASS_NAME_FOCUS = 'focus';
  var SELECTOR_DATA_TOGGLE_CARROT = '[data-toggle^="button"]';
  var SELECTOR_DATA_TOGGLES = '[data-toggle="buttons"]';
  var SELECTOR_DATA_TOGGLE = '[data-toggle="button"]';
  var SELECTOR_DATA_TOGGLES_BUTTONS = '[data-toggle="buttons"] .btn';
  var SELECTOR_INPUT = 'input:not([type="hidden"])';
  var SELECTOR_ACTIVE = '.active';
  var SELECTOR_BUTTON = '.btn';
  var EVENT_CLICK_DATA_API = "click" + EVENT_KEY + DATA_API_KEY;
  var EVENT_FOCUS_BLUR_DATA_API = "focus" + EVENT_KEY + DATA_API_KEY + " " + ("blur" + EVENT_KEY + DATA_API_KEY);
  var EVENT_LOAD_DATA_API = "load" + EVENT_KEY + DATA_API_KEY;
  /**
   * ------------------------------------------------------------------------
   * Class Definition
   * ------------------------------------------------------------------------
   */

  var Button = /*#__PURE__*/function () {
    function Button(element) {
      this._element = element;
    } // Getters


    var _proto = Button.prototype;

    // Public
    _proto.toggle = function toggle() {
      var triggerChangeEvent = true;
      var addAriaPressed = true;
      var rootElement = $(this._element).closest(SELECTOR_DATA_TOGGLES)[0];

      if (rootElement) {
        var input = this._element.querySelector(SELECTOR_INPUT);

        if (input) {
          if (input.type === 'radio') {
            if (input.checked && this._element.classList.contains(CLASS_NAME_ACTIVE)) {
              triggerChangeEvent = false;
            } else {
              var activeElement = rootElement.querySelector(SELECTOR_ACTIVE);

              if (activeElement) {
                $(activeElement).removeClass(CLASS_NAME_ACTIVE);
              }
            }
          }

          if (triggerChangeEvent) {
            // if it's not a radio button or checkbox don't add a pointless/invalid checked property to the input
            if (input.type === 'checkbox' || input.type === 'radio') {
              input.checked = !this._element.classList.contains(CLASS_NAME_ACTIVE);
            }

            $(input).trigger('change');
          }

          input.focus();
          addAriaPressed = false;
        }
      }

      if (!(this._element.hasAttribute('disabled') || this._element.classList.contains('disabled'))) {
        if (addAriaPressed) {
          this._element.setAttribute('aria-pressed', !this._element.classList.contains(CLASS_NAME_ACTIVE));
        }

        if (triggerChangeEvent) {
          $(this._element).toggleClass(CLASS_NAME_ACTIVE);
        }
      }
    };

    _proto.dispose = function dispose() {
      $.removeData(this._element, DATA_KEY);
      this._element = null;
    } // Static
    ;

    Button._jQueryInterface = function _jQueryInterface(config) {
      return this.each(function () {
        var data = $(this).data(DATA_KEY);

        if (!data) {
          data = new Button(this);
          $(this).data(DATA_KEY, data);
        }

        if (config === 'toggle') {
          data[config]();
        }
      });
    };

    _createClass(Button, null, [{
      key: "VERSION",
      get: function get() {
        return VERSION;
      }
    }]);

    return Button;
  }();
  /**
   * ------------------------------------------------------------------------
   * Data Api implementation
   * ------------------------------------------------------------------------
   */


  $(document).on(EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, function (event) {
    var button = event.target;
    var initialButton = button;

    if (!$(button).hasClass(CLASS_NAME_BUTTON)) {
      button = $(button).closest(SELECTOR_BUTTON)[0];
    }

    if (!button || button.hasAttribute('disabled') || button.classList.contains('disabled')) {
      event.preventDefault(); // work around Firefox bug #1540995
    } else {
      var inputBtn = button.querySelector(SELECTOR_INPUT);

      if (inputBtn && (inputBtn.hasAttribute('disabled') || inputBtn.classList.contains('disabled'))) {
        event.preventDefault(); // work around Firefox bug #1540995

        return;
      }

      if (initialButton.tagName === 'LABEL' && inputBtn && inputBtn.type === 'checkbox') {
        event.preventDefault(); // work around event sent to label and input
      }

      Button._jQueryInterface.call($(button), 'toggle');
    }
  }).on(EVENT_FOCUS_BLUR_DATA_API, SELECTOR_DATA_TOGGLE_CARROT, function (event) {
    var button = $(event.target).closest(SELECTOR_BUTTON)[0];
    $(button).toggleClass(CLASS_NAME_FOCUS, /^focus(in)?$/.test(event.type));
  });
  $(window).on(EVENT_LOAD_DATA_API, function () {
    // ensure correct active class is set to match the controls' actual values/states
    // find all checkboxes/readio buttons inside data-toggle groups
    var buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLES_BUTTONS));

    for (var i = 0, len = buttons.length; i < len; i++) {
      var button = buttons[i];
      var input = button.querySelector(SELECTOR_INPUT);

      if (input.checked || input.hasAttribute('checked')) {
        button.classList.add(CLASS_NAME_ACTIVE);
      } else {
        button.classList.remove(CLASS_NAME_ACTIVE);
      }
    } // find all button toggles


    buttons = [].slice.call(document.querySelectorAll(SELECTOR_DATA_TOGGLE));

    for (var _i = 0, _len = buttons.length; _i < _len; _i++) {
      var _button = buttons[_i];

      if (_button.getAttribute('aria-pressed') === 'true') {
        _button.classList.add(CLASS_NAME_ACTIVE);
      } else {
        _button.classList.remove(CLASS_NAME_ACTIVE);
      }
    }
  });
  /**
   * ------------------------------------------------------------------------
   * jQuery
   * ------------------------------------------------------------------------
   */

  $.fn[NAME] = Button._jQueryInterface;
  $.fn[NAME].Constructor = Button;

  $.fn[NAME].noConflict = function () {
    $.fn[NAME] = JQUERY_NO_CONFLICT;
    return Button._jQueryInterface;
  };

  return Button;

})));
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