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Viewing / Editing File: fontawesome.js

/*!
 * Font Awesome Free 5.13.1 by @fontawesome - https://fontawesome.com
 * License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
 */
(function () {
  'use strict';

return _typeof(obj);
  }

function _classCallCheck(instance, Constructor) {
    if (!(instance instanceof Constructor)) {
      throw new TypeError("Cannot call a class as a function");
    }
  }

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;
  }

function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

return obj;
  }

function _objectSpread(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};
      var ownKeys = Object.keys(source);

if (typeof Object.getOwnPropertySymbols === 'function') {
        ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
        }));
      }

ownKeys.forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    }

return target;
  }

function _slicedToArray(arr, i) {
    return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest();
  }

function _toConsumableArray(arr) {
    return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread();
  }

function _arrayWithoutHoles(arr) {
    if (Array.isArray(arr)) {
      for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

return arr2;
    }
  }

function _arrayWithHoles(arr) {
    if (Array.isArray(arr)) return arr;
  }

function _iterableToArray(iter) {
    if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter);
  }

function _iterableToArrayLimit(arr, i) {
    var _arr = [];
    var _n = true;
    var _d = false;
    var _e = undefined;

try {
      for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
        _arr.push(_s.value);

if (i && _arr.length === i) break;
      }
    } catch (err) {
      _d = true;
      _e = err;
    } finally {
      try {
        if (!_n && _i["return"] != null) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

return _arr;
  }

function _nonIterableSpread() {
    throw new TypeError("Invalid attempt to spread non-iterable instance");
  }

function _nonIterableRest() {
    throw new TypeError("Invalid attempt to destructure non-iterable instance");
  }

var noop = function noop() {};

var _WINDOW = {};
  var _DOCUMENT = {};
  var _MUTATION_OBSERVER = null;
  var _PERFORMANCE = {
    mark: noop,
    measure: noop
  };

try {
    if (typeof window !== 'undefined') _WINDOW = window;
    if (typeof document !== 'undefined') _DOCUMENT = document;
    if (typeof MutationObserver !== 'undefined') _MUTATION_OBSERVER = MutationObserver;
    if (typeof performance !== 'undefined') _PERFORMANCE = performance;
  } catch (e) {}

var _ref = _WINDOW.navigator || {},
      _ref$userAgent = _ref.userAgent,
      userAgent = _ref$userAgent === void 0 ? '' : _ref$userAgent;

var WINDOW = _WINDOW;
  var DOCUMENT = _DOCUMENT;
  var MUTATION_OBSERVER = _MUTATION_OBSERVER;
  var PERFORMANCE = _PERFORMANCE;
  var IS_BROWSER = !!WINDOW.document;
  var IS_DOM = !!DOCUMENT.documentElement && !!DOCUMENT.head && typeof DOCUMENT.addEventListener === 'function' && typeof DOCUMENT.createElement === 'function';
  var IS_IE = ~userAgent.indexOf('MSIE') || ~userAgent.indexOf('Trident/');

var initial = WINDOW.FontAwesomeConfig || {};

function getAttrConfig(attr) {
    var element = DOCUMENT.querySelector('script[' + attr + ']');

if (element) {
      return element.getAttribute(attr);
    }
  }

function coerce(val) {
    // Getting an empty string will occur if the attribute is set on the HTML tag but without a value
    // We'll assume that this is an indication that it should be toggled to true
    // For example <script data-search-pseudo-elements src="..."></script>
    if (val === '') return true;
    if (val === 'false') return false;
    if (val === 'true') return true;
    return val;
  }

if (DOCUMENT && typeof DOCUMENT.querySelector === 'function') {
    var attrs = [['data-family-prefix', 'familyPrefix'], ['data-replacement-class', 'replacementClass'], ['data-auto-replace-svg', 'autoReplaceSvg'], ['data-auto-add-css', 'autoAddCss'], ['data-auto-a11y', 'autoA11y'], ['data-search-pseudo-elements', 'searchPseudoElements'], ['data-observe-mutations', 'observeMutations'], ['data-mutate-approach', 'mutateApproach'], ['data-keep-original-source', 'keepOriginalSource'], ['data-measure-performance', 'measurePerformance'], ['data-show-missing-icons', 'showMissingIcons']];
    attrs.forEach(function (_ref) {
      var _ref2 = _slicedToArray(_ref, 2),
          attr = _ref2[0],
          key = _ref2[1];

var val = coerce(getAttrConfig(attr));

if (val !== undefined && val !== null) {
        initial[key] = val;
      }
    });
  }

var _default = {
    familyPrefix: DEFAULT_FAMILY_PREFIX,
    replacementClass: DEFAULT_REPLACEMENT_CLASS,
    autoReplaceSvg: true,
    autoAddCss: true,
    autoA11y: true,
    searchPseudoElements: false,
    observeMutations: true,
    mutateApproach: 'async',
    keepOriginalSource: true,
    measurePerformance: false,
    showMissingIcons: true
  };

var _config = _objectSpread({}, _default, initial);

if (!_config.autoReplaceSvg) _config.observeMutations = false;

var config = _objectSpread({}, _config);

WINDOW.FontAwesomeConfig = config;

var functions = [];

var listener = function listener() {
    DOCUMENT.removeEventListener('DOMContentLoaded', listener);
    loaded = 1;
    functions.map(function (fn) {
      return fn();
    });
  };

var loaded = false;

if (IS_DOM) {
    loaded = (DOCUMENT.documentElement.doScroll ? /^loaded|^c/ : /^loaded|^i|^c/).test(DOCUMENT.readyState);
    if (!loaded) DOCUMENT.addEventListener('DOMContentLoaded', listener);
  }

function domready (fn) {
    if (!IS_DOM) return;
    loaded ? setTimeout(fn, 0) : functions.push(fn);
  }

var PENDING = 'pending';
  var SETTLED = 'settled';
  var FULFILLED = 'fulfilled';
  var REJECTED = 'rejected';

var NOOP = function NOOP() {};

var isNode = typeof global !== 'undefined' && typeof global.process !== 'undefined' && typeof global.process.emit === 'function';
  var asyncSetTimer = typeof setImmediate === 'undefined' ? setTimeout : setImmediate;
  var asyncQueue = [];
  var asyncTimer;

function asyncFlush() {
    // run promise callbacks
    for (var i = 0; i < asyncQueue.length; i++) {
      asyncQueue[i][0](asyncQueue[i][1]);
    } // reset async asyncQueue

asyncQueue = [];
    asyncTimer = false;
  }

function asyncCall(callback, arg) {
    asyncQueue.push([callback, arg]);

if (!asyncTimer) {
      asyncTimer = true;
      asyncSetTimer(asyncFlush, 0);
    }
  }

function invokeResolver(resolver, promise) {
    function resolvePromise(value) {
      resolve(promise, value);
    }

function rejectPromise(reason) {
      reject(promise, reason);
    }

try {
      resolver(resolvePromise, rejectPromise);
    } catch (e) {
      rejectPromise(e);
    }
  }

function invokeCallback(subscriber) {
    var owner = subscriber.owner;
    var settled = owner._state;
    var value = owner._data;
    var callback = subscriber[settled];
    var promise = subscriber.then;

if (typeof callback === 'function') {
      settled = FULFILLED;

try {
        value = callback(value);
      } catch (e) {
        reject(promise, e);
      }
    }

if (!handleThenable(promise, value)) {
      if (settled === FULFILLED) {
        resolve(promise, value);
      }

if (settled === REJECTED) {
        reject(promise, value);
      }
    }
  }

function handleThenable(promise, value) {
    var resolved;

try {
      if (promise === value) {
        throw new TypeError('A promises callback cannot return that same promise.');
      }

if (value && (typeof value === 'function' || _typeof(value) === 'object')) {
        // then should be retrieved only once
        var then = value.then;

if (typeof then === 'function') {
          then.call(value, function (val) {
            if (!resolved) {
              resolved = true;

if (value === val) {
                fulfill(promise, val);
              } else {
                resolve(promise, val);
              }
            }
          }, function (reason) {
            if (!resolved) {
              resolved = true;
              reject(promise, reason);
            }
          });
          return true;
        }
      }
    } catch (e) {
      if (!resolved) {
        reject(promise, e);
      }

return true;
    }

return false;
  }

function resolve(promise, value) {
    if (promise === value || !handleThenable(promise, value)) {
      fulfill(promise, value);
    }
  }

function fulfill(promise, value) {
    if (promise._state === PENDING) {
      promise._state = SETTLED;
      promise._data = value;
      asyncCall(publishFulfillment, promise);
    }
  }

function reject(promise, reason) {
    if (promise._state === PENDING) {
      promise._state = SETTLED;
      promise._data = reason;
      asyncCall(publishRejection, promise);
    }
  }

function publish(promise) {
    promise._then = promise._then.forEach(invokeCallback);
  }

function publishFulfillment(promise) {
    promise._state = FULFILLED;
    publish(promise);
  }

function publishRejection(promise) {
    promise._state = REJECTED;
    publish(promise);

if (!promise._handled && isNode) {
      global.process.emit('unhandledRejection', promise._data, promise);
    }
  }

function notifyRejectionHandled(promise) {
    global.process.emit('rejectionHandled', promise);
  }
  /**
   * @class
   */

function P(resolver) {
    if (typeof resolver !== 'function') {
      throw new TypeError('Promise resolver ' + resolver + ' is not a function');
    }

if (this instanceof P === false) {
      throw new TypeError('Failed to construct \'Promise\': Please use the \'new\' operator, this object constructor cannot be called as a function.');
    }

this._then = [];
    invokeResolver(resolver, this);
  }

P.prototype = {
    constructor: P,
    _state: PENDING,
    _then: null,
    _data: undefined,
    _handled: false,
    then: function then(onFulfillment, onRejection) {
      var subscriber = {
        owner: this,
        then: new this.constructor(NOOP),
        fulfilled: onFulfillment,
        rejected: onRejection
      };

if ((onRejection || onFulfillment) && !this._handled) {
        this._handled = true;

if (this._state === REJECTED && isNode) {
          asyncCall(notifyRejectionHandled, this);
        }
      }

if (this._state === FULFILLED || this._state === REJECTED) {
        // already resolved, call callback async
        asyncCall(invokeCallback, subscriber);
      } else {
        // subscribe
        this._then.push(subscriber);
      }

return subscriber.then;
    },
    catch: function _catch(onRejection) {
      return this.then(null, onRejection);
    }
  };

P.all = function (promises) {
    if (!Array.isArray(promises)) {
      throw new TypeError('You must pass an array to Promise.all().');
    }

return new P(function (resolve, reject) {
      var results = [];
      var remaining = 0;

function resolver(index) {
        remaining++;
        return function (value) {
          results[index] = value;

if (! --remaining) {
            resolve(results);
          }
        };
      }

for (var i = 0, promise; i < promises.length; i++) {
        promise = promises[i];

if (promise && typeof promise.then === 'function') {
          promise.then(resolver(i), reject);
        } else {
          results[i] = promise;
        }
      }

if (!remaining) {
        resolve(results);
      }
    });
  };

P.race = function (promises) {
    if (!Array.isArray(promises)) {
      throw new TypeError('You must pass an array to Promise.race().');
    }

return new P(function (resolve, reject) {
      for (var i = 0, promise; i < promises.length; i++) {
        promise = promises[i];

if (promise && typeof promise.then === 'function') {
          promise.then(resolve, reject);
        } else {
          resolve(promise);
        }
      }
    });
  };

P.resolve = function (value) {
    if (value && _typeof(value) === 'object' && value.constructor === P) {
      return value;
    }

return new P(function (resolve) {
      resolve(value);
    });
  };

P.reject = function (reason) {
    return new P(function (resolve, reject) {
      reject(reason);
    });
  };

var picked = typeof Promise === 'function' ? Promise : P;

var d = UNITS_IN_GRID;
  var meaninglessTransform = {
    size: 16,
    x: 0,
    y: 0,
    rotate: 0,
    flipX: false,
    flipY: false
  };

function isReserved(name) {
    return ~RESERVED_CLASSES.indexOf(name);
  }

function bunker(fn) {
    try {
      fn();
    } catch (e) {
      if (!PRODUCTION) {
        throw e;
      }
    }
  }
  function insertCss(css) {
    if (!css || !IS_DOM) {
      return;
    }

var style = DOCUMENT.createElement('style');
    style.setAttribute('type', 'text/css');
    style.innerHTML = css;
    var headChildren = DOCUMENT.head.childNodes;
    var beforeChild = null;

for (var i = headChildren.length - 1; i > -1; i--) {
      var child = headChildren[i];
      var tagName = (child.tagName || '').toUpperCase();

if (['STYLE', 'LINK'].indexOf(tagName) > -1) {
        beforeChild = child;
      }
    }

DOCUMENT.head.insertBefore(style, beforeChild);
    return css;
  }
  var idPool = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
  function nextUniqueId() {
    var size = 12;
    var id = '';

while (size-- > 0) {
      id += idPool[Math.random() * 62 | 0];
    }

return id;
  }
  function toArray(obj) {
    var array = [];

for (var i = (obj || []).length >>> 0; i--;) {
      array[i] = obj[i];
    }

return array;
  }
  function classArray(node) {
    if (node.classList) {
      return toArray(node.classList);
    } else {
      return (node.getAttribute('class') || '').split(' ').filter(function (i) {
        return i;
      });
    }
  }
  function getIconName(familyPrefix, cls) {
    var parts = cls.split('-');
    var prefix = parts[0];
    var iconName = parts.slice(1).join('-');

if (prefix === familyPrefix && iconName !== '' && !isReserved(iconName)) {
      return iconName;
    } else {
      return null;
    }
  }
  function htmlEscape(str) {
    return "".concat(str).replace(/&/g, '&amp;').replace(/"/g, '&quot;').replace(/'/g, '&#39;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
  }
  function joinAttributes(attributes) {
    return Object.keys(attributes || {}).reduce(function (acc, attributeName) {
      return acc + "".concat(attributeName, "=\"").concat(htmlEscape(attributes[attributeName]), "\" ");
    }, '').trim();
  }
  function joinStyles(styles) {
    return Object.keys(styles || {}).reduce(function (acc, styleName) {
      return acc + "".concat(styleName, ": ").concat(styles[styleName], ";");
    }, '');
  }
  function transformIsMeaningful(transform) {
    return transform.size !== meaninglessTransform.size || transform.x !== meaninglessTransform.x || transform.y !== meaninglessTransform.y || transform.rotate !== meaninglessTransform.rotate || transform.flipX || transform.flipY;
  }
  function transformForSvg(_ref) {
    var transform = _ref.transform,
        containerWidth = _ref.containerWidth,
        iconWidth = _ref.iconWidth;
    var outer = {
      transform: "translate(".concat(containerWidth / 2, " 256)")
    };
    var innerTranslate = "translate(".concat(transform.x * 32, ", ").concat(transform.y * 32, ") ");
    var innerScale = "scale(".concat(transform.size / 16 * (transform.flipX ? -1 : 1), ", ").concat(transform.size / 16 * (transform.flipY ? -1 : 1), ") ");
    var innerRotate = "rotate(".concat(transform.rotate, " 0 0)");
    var inner = {
      transform: "".concat(innerTranslate, " ").concat(innerScale, " ").concat(innerRotate)
    };
    var path = {
      transform: "translate(".concat(iconWidth / 2 * -1, " -256)")
    };
    return {
      outer: outer,
      inner: inner,
      path: path
    };
  }
  function transformForCss(_ref2) {
    var transform = _ref2.transform,
        _ref2$width = _ref2.width,
        width = _ref2$width === void 0 ? UNITS_IN_GRID : _ref2$width,
        _ref2$height = _ref2.height,
        height = _ref2$height === void 0 ? UNITS_IN_GRID : _ref2$height,
        _ref2$startCentered = _ref2.startCentered,
        startCentered = _ref2$startCentered === void 0 ? false : _ref2$startCentered;
    var val = '';

if (startCentered && IS_IE) {
      val += "translate(".concat(transform.x / d - width / 2, "em, ").concat(transform.y / d - height / 2, "em) ");
    } else if (startCentered) {
      val += "translate(calc(-50% + ".concat(transform.x / d, "em), calc(-50% + ").concat(transform.y / d, "em)) ");
    } else {
      val += "translate(".concat(transform.x / d, "em, ").concat(transform.y / d, "em) ");
    }

val += "scale(".concat(transform.size / d * (transform.flipX ? -1 : 1), ", ").concat(transform.size / d * (transform.flipY ? -1 : 1), ") ");
    val += "rotate(".concat(transform.rotate, "deg) ");
    return val;
  }

var ALL_SPACE = {
    x: 0,
    y: 0,
    width: '100%',
    height: '100%'
  };

function fillBlack(abstract) {
    var force = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : true;

if (abstract.attributes && (abstract.attributes.fill || force)) {
      abstract.attributes.fill = 'black';
    }

return abstract;
  }

function deGroup(abstract) {
    if (abstract.tag === 'g') {
      return abstract.children;
    } else {
      return [abstract];
    }
  }

function makeIconStandard (_ref) {
    var children = _ref.children,
        attributes = _ref.attributes,
        main = _ref.main,
        transform = _ref.transform,
        styles = _ref.styles;
    var styleString = joinStyles(styles);

if (styleString.length > 0) {
      attributes['style'] = styleString;
    }

if (transformIsMeaningful(transform)) {
      var trans = transformForSvg({
        transform: transform,
        containerWidth: main.width,
        iconWidth: main.width
      });
      children.push({
        tag: 'g',
        attributes: _objectSpread({}, trans.outer),
        children: [{
          tag: 'g',
          attributes: _objectSpread({}, trans.inner),
          children: [{
            tag: main.icon.tag,
            children: main.icon.children,
            attributes: _objectSpread({}, main.icon.attributes, trans.path)
          }]
        }]
      });
    } else {
      children.push(main.icon);
    }

return {
      children: children,
      attributes: attributes
    };
  }

function asIcon (_ref) {
    var children = _ref.children,
        main = _ref.main,
        mask = _ref.mask,
        attributes = _ref.attributes,
        styles = _ref.styles,
        transform = _ref.transform;

if (transformIsMeaningful(transform) && main.found && !mask.found) {
      var width = main.width,
          height = main.height;
      var offset = {
        x: width / height / 2,
        y: 0.5
      };
      attributes['style'] = joinStyles(_objectSpread({}, styles, {
        'transform-origin': "".concat(offset.x + transform.x / 16, "em ").concat(offset.y + transform.y / 16, "em")
      }));
    }

return [{
      tag: 'svg',
      attributes: attributes,
      children: children
    }];
  }

function makeInlineSvgAbstract(params) {
    var _params$icons = params.icons,
        main = _params$icons.main,
        mask = _params$icons.mask,
        prefix = params.prefix,
        iconName = params.iconName,
        transform = params.transform,
        symbol = params.symbol,
        title = params.title,
        maskId = params.maskId,
        titleId = params.titleId,
        extra = params.extra,
        _params$watchable = params.watchable,
        watchable = _params$watchable === void 0 ? false : _params$watchable;

var _ref = mask.found ? mask : main,
        width = _ref.width,
        height = _ref.height;

if (watchable) {
      content.attributes[DATA_FA_I2SVG] = '';
    }

if (title) content.children.push({
      tag: 'title',
      attributes: {
        id: content.attributes['aria-labelledby'] || "title-".concat(titleId || nextUniqueId())
      },
      children: [title]
    });

var args = _objectSpread({}, content, {
      prefix: prefix,
      iconName: iconName,
      main: main,
      mask: mask,
      maskId: maskId,
      transform: transform,
      symbol: symbol,
      styles: extra.styles
    });

var _ref2 = mask.found && main.found ? makeIconMasking(args) : makeIconStandard(args),
        children = _ref2.children,
        attributes = _ref2.attributes;

args.children = children;
    args.attributes = attributes;

if (symbol) {
      return asSymbol(args);
    } else {
      return asIcon(args);
    }
  }
  function makeLayersTextAbstract(params) {
    var content = params.content,
        width = params.width,
        height = params.height,
        transform = params.transform,
        title = params.title,
        extra = params.extra,
        _params$watchable2 = params.watchable,
        watchable = _params$watchable2 === void 0 ? false : _params$watchable2;

var attributes = _objectSpread({}, extra.attributes, title ? {
      'title': title
    } : {}, {
      'class': extra.classes.join(' ')
    });

if (watchable) {
      attributes[DATA_FA_I2SVG] = '';
    }

var styles = _objectSpread({}, extra.styles);

if (transformIsMeaningful(transform)) {
      styles['transform'] = transformForCss({
        transform: transform,
        startCentered: true,
        width: width,
        height: height
      });
      styles['-webkit-transform'] = styles['transform'];
    }

var styleString = joinStyles(styles);

if (styleString.length > 0) {
      attributes['style'] = styleString;
    }

var val = [];
    val.push({
      tag: 'span',
      attributes: attributes,
      children: [content]
    });

if (title) {
      val.push({
        tag: 'span',
        attributes: {
          class: 'sr-only'
        },
        children: [title]
      });
    }

return val;
  }
  function makeLayersCounterAbstract(params) {
    var content = params.content,
        title = params.title,
        extra = params.extra;

var attributes = _objectSpread({}, extra.attributes, title ? {
      'title': title
    } : {}, {
      'class': extra.classes.join(' ')
    });

var styleString = joinStyles(extra.styles);

if (styleString.length > 0) {
      attributes['style'] = styleString;
    }

var val = [];
    val.push({
      tag: 'span',
      attributes: attributes,
      children: [content]
    });

if (title) {
      val.push({
        tag: 'span',
        attributes: {
          class: 'sr-only'
        },
        children: [title]
      });
    }

return val;
  }

var noop$1 = function noop() {};

var p = config.measurePerformance && PERFORMANCE && PERFORMANCE.mark && PERFORMANCE.measure ? PERFORMANCE : {
    mark: noop$1,
    measure: noop$1
  };
  var preamble = "FA \"5.13.1\"";

var begin = function begin(name) {
    p.mark("".concat(preamble, " ").concat(name, " begins"));
    return function () {
      return end(name);
    };
  };

var end = function end(name) {
    p.mark("".concat(preamble, " ").concat(name, " ends"));
    p.measure("".concat(preamble, " ").concat(name), "".concat(preamble, " ").concat(name, " begins"), "".concat(preamble, " ").concat(name, " ends"));
  };

var perf = {
    begin: begin,
    end: end
  };

/**
   * Internal helper to bind a function known to have 4 arguments
   * to a given context.
   */

var bindInternal4 = function bindInternal4(func, thisContext) {
    return function (a, b, c, d) {
      return func.call(thisContext, a, b, c, d);
    };
  };

/**
   * # Reduce
   *
   * A fast object `.reduce()` implementation.
   *
   * @param  {Object}   subject      The object to reduce over.
   * @param  {Function} fn           The reducer function.
   * @param  {mixed}    initialValue The initial value for the reducer, defaults to subject[0].
   * @param  {Object}   thisContext  The context for the reducer.
   * @return {mixed}                 The final result.
   */

var reduce = function fastReduceObject(subject, fn, initialValue, thisContext) {
    var keys = Object.keys(subject),
        length = keys.length,
        iterator = thisContext !== undefined ? bindInternal4(fn, thisContext) : fn,
        i,
        key,
        result;

if (initialValue === undefined) {
      i = 1;
      result = subject[keys[0]];
    } else {
      i = 0;
      result = initialValue;
    }

for (; i < length; i++) {
      key = keys[i];
      result = iterator(result, subject[key], key, subject);
    }

return result;
  };

function toHex(unicode) {
    var result = '';

for (var i = 0; i < unicode.length; i++) {
      var hex = unicode.charCodeAt(i).toString(16);
      result += ('000' + hex).slice(-4);
    }

return result;
  }

function defineIcons(prefix, icons) {
    var params = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var _params$skipHooks = params.skipHooks,
        skipHooks = _params$skipHooks === void 0 ? false : _params$skipHooks;
    var normalized = Object.keys(icons).reduce(function (acc, iconName) {
      var icon = icons[iconName];
      var expanded = !!icon.icon;

if (expanded) {
        acc[icon.iconName] = icon.icon;
      } else {
        acc[iconName] = icon;
      }

return acc;
    }, {});

if (typeof namespace.hooks.addPack === 'function' && !skipHooks) {
      namespace.hooks.addPack(prefix, normalized);
    } else {
      namespace.styles[prefix] = _objectSpread({}, namespace.styles[prefix] || {}, normalized);
    }
    /**
     * Font Awesome 4 used the prefix of `fa` for all icons. With the introduction
     * of new styles we needed to differentiate between them. Prefix `fa` is now an alias
     * for `fas` so we'll easy the upgrade process for our users by automatically defining
     * this as well.
     */

if (prefix === 'fas') {
      defineIcons('fa', icons);
    }
  }

_byUnicode = lookup(function (acc, icon, iconName) {
      if (icon[3]) {
        acc[icon[3]] = iconName;
      }

return acc;
    });
    _byLigature = lookup(function (acc, icon, iconName) {
      var ligatures = icon[2];
      acc[iconName] = iconName;
      ligatures.forEach(function (ligature) {
        acc[ligature] = iconName;
      });
      return acc;
    });
    var hasRegular = 'far' in styles;
    _byOldName = reduce(shims, function (acc, shim) {
      var oldName = shim[0];
      var prefix = shim[1];
      var iconName = shim[2];

if (prefix === 'far' && !hasRegular) {
        prefix = 'fas';
      }

acc[oldName] = {
        prefix: prefix,
        iconName: iconName
      };
      return acc;
    }, {});
  };
  build();
  function byUnicode(prefix, unicode) {
    return (_byUnicode[prefix] || {})[unicode];
  }
  function byLigature(prefix, ligature) {
    return (_byLigature[prefix] || {})[ligature];
  }
  function byOldName(name) {
    return _byOldName[name] || {
      prefix: null,
      iconName: null
    };
  }

var styles$1 = namespace.styles;
  var emptyCanonicalIcon = function emptyCanonicalIcon() {
    return {
      prefix: null,
      iconName: null,
      rest: []
    };
  };
  function getCanonicalIcon(values) {
    return values.reduce(function (acc, cls) {
      var iconName = getIconName(config.familyPrefix, cls);

if (styles$1[cls]) {
        acc.prefix = cls;
      } else if (config.autoFetchSvg && ['fas', 'far', 'fal', 'fad', 'fab', 'fa'].indexOf(cls) > -1) {
        acc.prefix = cls;
      } else if (iconName) {
        var shim = acc.prefix === 'fa' ? byOldName(iconName) : {};
        acc.iconName = shim.iconName || iconName;
        acc.prefix = shim.prefix || acc.prefix;
      } else if (cls !== config.replacementClass && cls.indexOf('fa-w-') !== 0) {
        acc.rest.push(cls);
      }

return acc;
    }, emptyCanonicalIcon());
  }
  function iconFromMapping(mapping, prefix, iconName) {
    if (mapping && mapping[prefix] && mapping[prefix][iconName]) {
      return {
        prefix: prefix,
        iconName: iconName,
        icon: mapping[prefix][iconName]
      };
    }
  }

function toHtml(abstractNodes) {
    var tag = abstractNodes.tag,
        _abstractNodes$attrib = abstractNodes.attributes,
        attributes = _abstractNodes$attrib === void 0 ? {} : _abstractNodes$attrib,
        _abstractNodes$childr = abstractNodes.children,
        children = _abstractNodes$childr === void 0 ? [] : _abstractNodes$childr;

if (typeof abstractNodes === 'string') {
      return htmlEscape(abstractNodes);
    } else {
      return "<".concat(tag, " ").concat(joinAttributes(attributes), ">").concat(children.map(toHtml).join(''), "</").concat(tag, ">");
    }
  }

var noop$2 = function noop() {};

function isWatched(node) {
    var i2svg = node.getAttribute ? node.getAttribute(DATA_FA_I2SVG) : null;
    return typeof i2svg === 'string';
  }

function getMutator() {
    if (config.autoReplaceSvg === true) {
      return mutators.replace;
    }

var mutator = mutators[config.autoReplaceSvg];
    return mutator || mutators.replace;
  }

var mutators = {
    replace: function replace(mutation) {
      var node = mutation[0];
      var abstract = mutation[1];
      var newOuterHTML = abstract.map(function (a) {
        return toHtml(a);
      }).join('\n');

if (node.parentNode && node.outerHTML) {
        node.outerHTML = newOuterHTML + (config.keepOriginalSource && node.tagName.toLowerCase() !== 'svg' ? "") : '');
      } else if (node.parentNode) {
        var newNode = document.createElement('span');
        node.parentNode.replaceChild(newNode, node);
        newNode.outerHTML = newOuterHTML;
      }
    },
    nest: function nest(mutation) {
      var node = mutation[0];
      var abstract = mutation[1]; // If we already have a replaced node we do not want to continue nesting within it.
      // Short-circuit to the standard replacement

if (~classArray(node).indexOf(config.replacementClass)) {
        return mutators.replace(mutation);
      }

var forSvg = new RegExp("".concat(config.familyPrefix, "-.*"));
      delete abstract[0].attributes.style;
      delete abstract[0].attributes.id;
      var splitClasses = abstract[0].attributes.class.split(' ').reduce(function (acc, cls) {
        if (cls === config.replacementClass || cls.match(forSvg)) {
          acc.toSvg.push(cls);
        } else {
          acc.toNode.push(cls);
        }

return acc;
      }, {
        toNode: [],
        toSvg: []
      });
      abstract[0].attributes.class = splitClasses.toSvg.join(' ');
      var newInnerHTML = abstract.map(function (a) {
        return toHtml(a);
      }).join('\n');
      node.setAttribute('class', splitClasses.toNode.join(' '));
      node.setAttribute(DATA_FA_I2SVG, '');
      node.innerHTML = newInnerHTML;
    }
  };

function performOperationSync(op) {
    op();
  }

function perform(mutations, callback) {
    var callbackFunction = typeof callback === 'function' ? callback : noop$2;

if (mutations.length === 0) {
      callbackFunction();
    } else {
      var frame = performOperationSync;

if (config.mutateApproach === MUTATION_APPROACH_ASYNC) {
        frame = WINDOW.requestAnimationFrame || performOperationSync;
      }

frame(function () {
        var mutator = getMutator();
        var mark = perf.begin('mutate');
        mutations.map(mutator);
        mark();
        callbackFunction();
      });
    }
  }
  var disabled = false;
  function disableObservation() {
    disabled = true;
  }
  function enableObservation() {
    disabled = false;
  }
  var mo = null;
  function observe(options) {
    if (!MUTATION_OBSERVER) {
      return;
    }

if (!config.observeMutations) {
      return;
    }

var treeCallback = options.treeCallback,
        nodeCallback = options.nodeCallback,
        pseudoElementsCallback = options.pseudoElementsCallback,
        _options$observeMutat = options.observeMutationsRoot,
        observeMutationsRoot = _options$observeMutat === void 0 ? DOCUMENT : _options$observeMutat;
    mo = new MUTATION_OBSERVER(function (objects) {
      if (disabled) return;
      toArray(objects).forEach(function (mutationRecord) {
        if (mutationRecord.type === 'childList' && mutationRecord.addedNodes.length > 0 && !isWatched(mutationRecord.addedNodes[0])) {
          if (config.searchPseudoElements) {
            pseudoElementsCallback(mutationRecord.target);
          }

treeCallback(mutationRecord.target);
        }

if (mutationRecord.type === 'attributes' && mutationRecord.target.parentNode && config.searchPseudoElements) {
          pseudoElementsCallback(mutationRecord.target.parentNode);
        }

if (mutationRecord.type === 'attributes' && isWatched(mutationRecord.target) && ~ATTRIBUTES_WATCHED_FOR_MUTATION.indexOf(mutationRecord.attributeName)) {
          if (mutationRecord.attributeName === 'class') {
            var _getCanonicalIcon = getCanonicalIcon(classArray(mutationRecord.target)),
                prefix = _getCanonicalIcon.prefix,
                iconName = _getCanonicalIcon.iconName;

if (prefix) mutationRecord.target.setAttribute('data-prefix', prefix);
            if (iconName) mutationRecord.target.setAttribute('data-icon', iconName);
          } else {
            nodeCallback(mutationRecord.target);
          }
        }
      });
    });
    if (!IS_DOM) return;
    mo.observe(observeMutationsRoot, {
      childList: true,
      attributes: true,
      characterData: true,
      subtree: true
    });
  }
  function disconnect() {
    if (!mo) return;
    mo.disconnect();
  }

function styleParser (node) {
    var style = node.getAttribute('style');
    var val = [];

if (style) {
      val = style.split(';').reduce(function (acc, style) {
        var styles = style.split(':');
        var prop = styles[0];
        var value = styles.slice(1);

if (prop && value.length > 0) {
          acc[prop] = value.join(':').trim();
        }

return acc;
      }, {});
    }

return val;
  }

function classParser (node) {
    var existingPrefix = node.getAttribute('data-prefix');
    var existingIconName = node.getAttribute('data-icon');
    var innerText = node.innerText !== undefined ? node.innerText.trim() : '';
    var val = getCanonicalIcon(classArray(node));

if (existingPrefix && existingIconName) {
      val.prefix = existingPrefix;
      val.iconName = existingIconName;
    }

if (val.prefix && innerText.length > 1) {
      val.iconName = byLigature(val.prefix, node.innerText);
    } else if (val.prefix && innerText.length === 1) {
      val.iconName = byUnicode(val.prefix, toHex(node.innerText));
    }

return val;
  }

var parseTransformString = function parseTransformString(transformString) {
    var transform = {
      size: 16,
      x: 0,
      y: 0,
      flipX: false,
      flipY: false,
      rotate: 0
    };

if (!transformString) {
      return transform;
    } else {
      return transformString.toLowerCase().split(' ').reduce(function (acc, n) {
        var parts = n.toLowerCase().split('-');
        var first = parts[0];
        var rest = parts.slice(1).join('-');

if (first && rest === 'h') {
          acc.flipX = true;
          return acc;
        }

if (first && rest === 'v') {
          acc.flipY = true;
          return acc;
        }

rest = parseFloat(rest);

if (isNaN(rest)) {
          return acc;
        }

switch (first) {
          case 'grow':
            acc.size = acc.size + rest;
            break;

case 'shrink':
            acc.size = acc.size - rest;
            break;

case 'left':
            acc.x = acc.x - rest;
            break;

case 'right':
            acc.x = acc.x + rest;
            break;

case 'up':
            acc.y = acc.y - rest;
            break;

case 'down':
            acc.y = acc.y + rest;
            break;

case 'rotate':
            acc.rotate = acc.rotate + rest;
            break;
        }

return acc;
      }, transform);
    }
  };
  function transformParser (node) {
    return parseTransformString(node.getAttribute('data-fa-transform'));
  }

function symbolParser (node) {
    var symbol = node.getAttribute('data-fa-symbol');
    return symbol === null ? false : symbol === '' ? true : symbol;
  }

function attributesParser (node) {
    var extraAttributes = toArray(node.attributes).reduce(function (acc, attr) {
      if (acc.name !== 'class' && acc.name !== 'style') {
        acc[attr.name] = attr.value;
      }

return acc;
    }, {});
    var title = node.getAttribute('title');
    var titleId = node.getAttribute('data-fa-title-id');

if (config.autoA11y) {
      if (title) {
        extraAttributes['aria-labelledby'] = "".concat(config.replacementClass, "-title-").concat(titleId || nextUniqueId());
      } else {
        extraAttributes['aria-hidden'] = 'true';
        extraAttributes['focusable'] = 'false';
      }
    }

return extraAttributes;
  }

function maskParser (node) {
    var mask = node.getAttribute('data-fa-mask');

if (!mask) {
      return emptyCanonicalIcon();
    } else {
      return getCanonicalIcon(mask.split(' ').map(function (i) {
        return i.trim();
      }));
    }
  }

function blankMeta() {
    return {
      iconName: null,
      title: null,
      titleId: null,
      prefix: null,
      transform: meaninglessTransform,
      symbol: false,
      mask: null,
      maskId: null,
      extra: {
        classes: [],
        styles: {},
        attributes: {}
      }
    };
  }
  function parseMeta(node) {
    var _classParser = classParser(node),
        iconName = _classParser.iconName,
        prefix = _classParser.prefix,
        extraClasses = _classParser.rest;

var extraStyles = styleParser(node);
    var transform = transformParser(node);
    var symbol = symbolParser(node);
    var extraAttributes = attributesParser(node);
    var mask = maskParser(node);
    return {
      iconName: iconName,
      title: node.getAttribute('title'),
      titleId: node.getAttribute('data-fa-title-id'),
      prefix: prefix,
      transform: transform,
      symbol: symbol,
      mask: mask,
      maskId: node.getAttribute('data-fa-mask-id'),
      extra: {
        classes: extraClasses,
        styles: extraStyles,
        attributes: extraAttributes
      }
    };
  }

function MissingIcon(error) {
    this.name = 'MissingIcon';
    this.message = error || 'Icon unavailable';
    this.stack = new Error().stack;
  }
  MissingIcon.prototype = Object.create(Error.prototype);
  MissingIcon.prototype.constructor = MissingIcon;

var OPACITY_ANIMATE = _objectSpread({}, ANIMATION_BASE, {
    attributeName: 'opacity'
  });

var styles$2 = namespace.styles;
  function asFoundIcon(icon) {
    var width = icon[0];
    var height = icon[1];

var _icon$slice = icon.slice(4),
        _icon$slice2 = _slicedToArray(_icon$slice, 1),
        vectorData = _icon$slice2[0];

var element = null;

if (Array.isArray(vectorData)) {
      element = {
        tag: 'g',
        attributes: {
          class: "".concat(config.familyPrefix, "-").concat(DUOTONE_CLASSES.GROUP)
        },
        children: [{
          tag: 'path',
          attributes: {
            class: "".concat(config.familyPrefix, "-").concat(DUOTONE_CLASSES.SECONDARY),
            fill: 'currentColor',
            d: vectorData[0]
          }
        }, {
          tag: 'path',
          attributes: {
            class: "".concat(config.familyPrefix, "-").concat(DUOTONE_CLASSES.PRIMARY),
            fill: 'currentColor',
            d: vectorData[1]
          }
        }]
      };
    } else {
      element = {
        tag: 'path',
        attributes: {
          fill: 'currentColor',
          d: vectorData
        }
      };
    }

return {
      found: true,
      width: width,
      height: height,
      icon: element
    };
  }
  function findIcon(iconName, prefix) {
    return new picked(function (resolve, reject) {
      var val = {
        found: false,
        width: 512,
        height: 512,
        icon: missing
      };

if (iconName && prefix && styles$2[prefix] && styles$2[prefix][iconName]) {
        var icon = styles$2[prefix][iconName];
        return resolve(asFoundIcon(icon));
      }

var headers = {};

if (_typeof(WINDOW.FontAwesomeKitConfig) === 'object' && typeof window.FontAwesomeKitConfig.token === 'string') {
        headers['fa-kit-token'] = WINDOW.FontAwesomeKitConfig.token;
      }

if (iconName && prefix && !config.showMissingIcons) {
        reject(new MissingIcon("Icon is missing for prefix ".concat(prefix, " with icon name ").concat(iconName)));
      } else {
        resolve(val);
      }
    });
  }

var styles$3 = namespace.styles;

function generateSvgReplacementMutation(node, nodeMeta) {
    var iconName = nodeMeta.iconName,
        title = nodeMeta.title,
        titleId = nodeMeta.titleId,
        prefix = nodeMeta.prefix,
        transform = nodeMeta.transform,
        symbol = nodeMeta.symbol,
        mask = nodeMeta.mask,
        maskId = nodeMeta.maskId,
        extra = nodeMeta.extra;
    return new picked(function (resolve, reject) {
      picked.all([findIcon(iconName, prefix), findIcon(mask.iconName, mask.prefix)]).then(function (_ref) {
        var _ref2 = _slicedToArray(_ref, 2),
            main = _ref2[0],
            mask = _ref2[1];

resolve([node, makeInlineSvgAbstract({
          icons: {
            main: main,
            mask: mask
          },
          prefix: prefix,
          iconName: iconName,
          transform: transform,
          symbol: symbol,
          mask: mask,
          maskId: maskId,
          title: title,
          titleId: titleId,
          extra: extra,
          watchable: true
        })]);
      });
    });
  }

function generateLayersText(node, nodeMeta) {
    var title = nodeMeta.title,
        transform = nodeMeta.transform,
        extra = nodeMeta.extra;
    var width = null;
    var height = null;

if (IS_IE) {
      var computedFontSize = parseInt(getComputedStyle(node).fontSize, 10);
      var boundingClientRect = node.getBoundingClientRect();
      width = boundingClientRect.width / computedFontSize;
      height = boundingClientRect.height / computedFontSize;
    }

if (config.autoA11y && !title) {
      extra.attributes['aria-hidden'] = 'true';
    }

return picked.resolve([node, makeLayersTextAbstract({
      content: node.innerHTML,
      width: width,
      height: height,
      transform: transform,
      title: title,
      extra: extra,
      watchable: true
    })]);
  }

function generateMutation(node) {
    var nodeMeta = parseMeta(node);

if (~nodeMeta.extra.classes.indexOf(LAYERS_TEXT_CLASSNAME)) {
      return generateLayersText(node, nodeMeta);
    } else {
      return generateSvgReplacementMutation(node, nodeMeta);
    }
  }

function onTree(root) {
    var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
    if (!IS_DOM) return;
    var htmlClassList = DOCUMENT.documentElement.classList;

var hclAdd = function hclAdd(suffix) {
      return htmlClassList.add("".concat(HTML_CLASS_I2SVG_BASE_CLASS, "-").concat(suffix));
    };

var hclRemove = function hclRemove(suffix) {
      return htmlClassList.remove("".concat(HTML_CLASS_I2SVG_BASE_CLASS, "-").concat(suffix));
    };

var prefixes = config.autoFetchSvg ? Object.keys(PREFIX_TO_STYLE) : Object.keys(styles$3);
    var prefixesDomQuery = [".".concat(LAYERS_TEXT_CLASSNAME, ":not([").concat(DATA_FA_I2SVG, "])")].concat(prefixes.map(function (p) {
      return ".".concat(p, ":not([").concat(DATA_FA_I2SVG, "])");
    })).join(', ');

if (prefixesDomQuery.length === 0) {
      return;
    }

var candidates = [];

try {
      candidates = toArray(root.querySelectorAll(prefixesDomQuery));
    } catch (e) {// noop
    }

if (candidates.length > 0) {
      hclAdd('pending');
      hclRemove('complete');
    } else {
      return;
    }

var mark = perf.begin('onTree');
    var mutations = candidates.reduce(function (acc, node) {
      try {
        var mutation = generateMutation(node);

if (mutation) {
          acc.push(mutation);
        }
      } catch (e) {
        if (!PRODUCTION) {
          if (e instanceof MissingIcon) {
            console.error(e);
          }
        }
      }

return acc;
    }, []);
    return new picked(function (resolve, reject) {
      picked.all(mutations).then(function (resolvedMutations) {
        perform(resolvedMutations, function () {
          hclAdd('active');
          hclAdd('complete');
          hclRemove('pending');
          if (typeof callback === 'function') callback();
          mark();
          resolve();
        });
      }).catch(function () {
        mark();
        reject();
      });
    });
  }
  function onNode(node) {
    var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;
    generateMutation(node).then(function (mutation) {
      if (mutation) {
        perform([mutation], callback);
      }
    });
  }

function replaceForPosition(node, position) {
    var pendingAttribute = "".concat(DATA_FA_PSEUDO_ELEMENT_PENDING).concat(position.replace(':', '-'));
    return new picked(function (resolve, reject) {
      if (node.getAttribute(pendingAttribute) !== null) {
        // This node is already being processed
        return resolve();
      }

var children = toArray(node.children);
      var alreadyProcessedPseudoElement = children.filter(function (c) {
        return c.getAttribute(DATA_FA_PSEUDO_ELEMENT) === position;
      })[0];
      var styles = WINDOW.getComputedStyle(node, position);
      var fontFamily = styles.getPropertyValue('font-family').match(FONT_FAMILY_PATTERN);
      var fontWeight = styles.getPropertyValue('font-weight');
      var content = styles.getPropertyValue('content');

if (alreadyProcessedPseudoElement && !fontFamily) {
        // If we've already processed it but the current computed style does not result in a font-family,
        // that probably means that a class name that was previously present to make the icon has been
        // removed. So we now should delete the icon.
        node.removeChild(alreadyProcessedPseudoElement);
        return resolve();
      } else if (fontFamily && content !== 'none' && content !== '') {
        var prefix = ~['Solid', 'Regular', 'Light', 'Duotone', 'Brands'].indexOf(fontFamily[1]) ? STYLE_TO_PREFIX[fontFamily[1].toLowerCase()] : FONT_WEIGHT_TO_PREFIX[fontWeight];
        var hexValue = toHex(content.length === 3 ? content.substr(1, 1) : content);
        var iconName = byUnicode(prefix, hexValue);
        var iconIdentifier = iconName; // Only convert the pseudo element in this :before/:after position into an icon if we haven't
        // already done so with the same prefix and iconName

if (iconName && (!alreadyProcessedPseudoElement || alreadyProcessedPseudoElement.getAttribute(DATA_PREFIX) !== prefix || alreadyProcessedPseudoElement.getAttribute(DATA_ICON) !== iconIdentifier)) {
          node.setAttribute(pendingAttribute, iconIdentifier);

if (alreadyProcessedPseudoElement) {
            // Delete the old one, since we're replacing it with a new one
            node.removeChild(alreadyProcessedPseudoElement);
          }

if (position === ':before') {
              node.insertBefore(element, node.firstChild);
            } else {
              node.appendChild(element);
            }

element.outerHTML = abstract.map(function (a) {
              return toHtml(a);
            }).join('\n');
            node.removeAttribute(pendingAttribute);
            resolve();
          }).catch(reject);
        } else {
          resolve();
        }
      } else {
        resolve();
      }
    });
  }

function replace(node) {
    return picked.all([replaceForPosition(node, ':before'), replaceForPosition(node, ':after')]);
  }

function processable(node) {
    return node.parentNode !== document.head && !~TAGNAMES_TO_SKIP_FOR_PSEUDOELEMENTS.indexOf(node.tagName.toUpperCase()) && !node.getAttribute(DATA_FA_PSEUDO_ELEMENT) && (!node.parentNode || node.parentNode.tagName !== 'svg');
  }

function css () {
    var dfp = DEFAULT_FAMILY_PREFIX;
    var drc = DEFAULT_REPLACEMENT_CLASS;
    var fp = config.familyPrefix;
    var rc = config.replacementClass;
    var s = baseStyles;

if (fp !== dfp || rc !== drc) {
      var dPatt = new RegExp("\\.".concat(dfp, "\\-"), 'g');
      var customPropPatt = new RegExp("\\--".concat(dfp, "\\-"), 'g');
      var rPatt = new RegExp("\\.".concat(drc), 'g');
      s = s.replace(dPatt, ".".concat(fp, "-")).replace(customPropPatt, "--".concat(fp, "-")).replace(rPatt, ".".concat(rc));
    }

return s;
  }

var Library =
  /*#__PURE__*/
  function () {
    function Library() {
      _classCallCheck(this, Library);

this.definitions = {};
    }

_createClass(Library, [{
      key: "add",
      value: function add() {
        var _this = this;

for (var _len = arguments.length, definitions = new Array(_len), _key = 0; _key < _len; _key++) {
          definitions[_key] = arguments[_key];
        }

return Library;
  }();

function ensureCss() {
    if (config.autoAddCss && !_cssInserted) {
      insertCss(css());

_cssInserted = true;
    }
  }

function findIconDefinition(iconLookup) {
    var _iconLookup$prefix = iconLookup.prefix,
        prefix = _iconLookup$prefix === void 0 ? 'fa' : _iconLookup$prefix,
        iconName = iconLookup.iconName;
    if (!iconName) return;
    return iconFromMapping(library.definitions, prefix, iconName) || iconFromMapping(namespace.styles, prefix, iconName);
  }

if (mask) {
        mask = (mask || {}).icon ? mask : findIconDefinition(mask || {});
      }

return next(iconDefinition, _objectSpread({}, params, {
        mask: mask
      }));
    };
  }

var library = new Library();
  var noAuto = function noAuto() {
    config.autoReplaceSvg = false;
    config.observeMutations = false;
    disconnect();
  };
  var _cssInserted = false;
  var dom = {
    i2svg: function i2svg() {
      var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};

if (IS_DOM) {
        ensureCss();
        var _params$node = params.node,
            node = _params$node === void 0 ? DOCUMENT : _params$node,
            _params$callback = params.callback,
            callback = _params$callback === void 0 ? function () {} : _params$callback;

if (config.searchPseudoElements) {
          searchPseudoElements(node);
        }

return onTree(node, callback);
      } else {
        return picked.reject('Operation requires a DOM of some kind.');
      }
    },
    css: css,
    insertCss: function insertCss$$1() {
      if (!_cssInserted) {
        insertCss(css());

_cssInserted = true;
      }
    },
    watch: function watch() {
      var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
      var autoReplaceSvgRoot = params.autoReplaceSvgRoot,
          observeMutationsRoot = params.observeMutationsRoot;

if (config.autoReplaceSvg === false) {
        config.autoReplaceSvg = true;
      }

config.observeMutations = true;
      domready(function () {
        autoReplace({
          autoReplaceSvgRoot: autoReplaceSvgRoot
        });
        observe({
          treeCallback: onTree,
          nodeCallback: onNode,
          pseudoElementsCallback: searchPseudoElements,
          observeMutationsRoot: observeMutationsRoot
        });
      });
    }
  };
  var parse = {
    transform: function transform(transformString) {
      return parseTransformString(transformString);
    }
  };
  var icon = resolveIcons(function (iconDefinition) {
    var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var _params$transform = params.transform,
        transform = _params$transform === void 0 ? meaninglessTransform : _params$transform,
        _params$symbol = params.symbol,
        symbol = _params$symbol === void 0 ? false : _params$symbol,
        _params$mask = params.mask,
        mask = _params$mask === void 0 ? null : _params$mask,
        _params$maskId = params.maskId,
        maskId = _params$maskId === void 0 ? null : _params$maskId,
        _params$title = params.title,
        title = _params$title === void 0 ? null : _params$title,
        _params$titleId = params.titleId,
        titleId = _params$titleId === void 0 ? null : _params$titleId,
        _params$classes = params.classes,
        classes = _params$classes === void 0 ? [] : _params$classes,
        _params$attributes = params.attributes,
        attributes = _params$attributes === void 0 ? {} : _params$attributes,
        _params$styles = params.styles,
        styles = _params$styles === void 0 ? {} : _params$styles;
    if (!iconDefinition) return;
    var prefix = iconDefinition.prefix,
        iconName = iconDefinition.iconName,
        icon = iconDefinition.icon;
    return apiObject(_objectSpread({
      type: 'icon'
    }, iconDefinition), function () {
      ensureCss();

if (config.autoA11y) {
        if (title) {
          attributes['aria-labelledby'] = "".concat(config.replacementClass, "-title-").concat(titleId || nextUniqueId());
        } else {
          attributes['aria-hidden'] = 'true';
          attributes['focusable'] = 'false';
        }
      }

return makeInlineSvgAbstract({
        icons: {
          main: asFoundIcon(icon),
          mask: mask ? asFoundIcon(mask.icon) : {
            found: false,
            width: null,
            height: null,
            icon: {}
          }
        },
        prefix: prefix,
        iconName: iconName,
        transform: _objectSpread({}, meaninglessTransform, transform),
        symbol: symbol,
        title: title,
        maskId: maskId,
        titleId: titleId,
        extra: {
          attributes: attributes,
          styles: styles,
          classes: classes
        }
      });
    });
  });
  var text = function text(content) {
    var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var _params$transform2 = params.transform,
        transform = _params$transform2 === void 0 ? meaninglessTransform : _params$transform2,
        _params$title2 = params.title,
        title = _params$title2 === void 0 ? null : _params$title2,
        _params$classes2 = params.classes,
        classes = _params$classes2 === void 0 ? [] : _params$classes2,
        _params$attributes2 = params.attributes,
        attributes = _params$attributes2 === void 0 ? {} : _params$attributes2,
        _params$styles2 = params.styles,
        styles = _params$styles2 === void 0 ? {} : _params$styles2;
    return apiObject({
      type: 'text',
      content: content
    }, function () {
      ensureCss();
      return makeLayersTextAbstract({
        content: content,
        transform: _objectSpread({}, meaninglessTransform, transform),
        title: title,
        extra: {
          attributes: attributes,
          styles: styles,
          classes: ["".concat(config.familyPrefix, "-layers-text")].concat(_toConsumableArray(classes))
        }
      });
    });
  };
  var counter = function counter(content) {
    var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var _params$title3 = params.title,
        title = _params$title3 === void 0 ? null : _params$title3,
        _params$classes3 = params.classes,
        classes = _params$classes3 === void 0 ? [] : _params$classes3,
        _params$attributes3 = params.attributes,
        attributes = _params$attributes3 === void 0 ? {} : _params$attributes3,
        _params$styles3 = params.styles,
        styles = _params$styles3 === void 0 ? {} : _params$styles3;
    return apiObject({
      type: 'counter',
      content: content
    }, function () {
      ensureCss();
      return makeLayersCounterAbstract({
        content: content.toString(),
        title: title,
        extra: {
          attributes: attributes,
          styles: styles,
          classes: ["".concat(config.familyPrefix, "-layers-counter")].concat(_toConsumableArray(classes))
        }
      });
    });
  };
  var layer = function layer(assembler) {
    var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    var _params$classes4 = params.classes,
        classes = _params$classes4 === void 0 ? [] : _params$classes4;
    return apiObject({
      type: 'layer'
    }, function () {
      ensureCss();
      var children = [];
      assembler(function (args) {
        Array.isArray(args) ? args.map(function (a) {
          children = children.concat(a.abstract);
        }) : children = children.concat(args.abstract);
      });
      return [{
        tag: 'span',
        attributes: {
          class: ["".concat(config.familyPrefix, "-layers")].concat(_toConsumableArray(classes)).join(' ')
        },
        children: children
      }];
    });
  };
  var api = {
    noAuto: noAuto,
    config: config,
    dom: dom,
    library: library,
    parse: parse,
    findIconDefinition: findIconDefinition,
    icon: icon,
    text: text,
    counter: counter,
    layer: layer,
    toHtml: toHtml
  };

function bootstrap() {
    if (IS_BROWSER) {
      if (!WINDOW.FontAwesome) {
        WINDOW.FontAwesome = api;
      }

domready(function () {
        autoReplace();
        observe({
          treeCallback: onTree,
          nodeCallback: onNode,
          pseudoElementsCallback: searchPseudoElements
        });
      });
    }

namespace.hooks = _objectSpread({}, namespace.hooks, {
      addPack: function addPack(prefix, icons) {
        namespace.styles[prefix] = _objectSpread({}, namespace.styles[prefix] || {}, icons);
        build();
        autoReplace();
      },
      addShims: function addShims(shims) {
        var _namespace$shims;

(_namespace$shims = namespace.shims).push.apply(_namespace$shims, _toConsumableArray(shims));

build();
        autoReplace();
      }
    });
  }

bunker(bootstrap);

}());

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