Font-Awesome/advanced-options/use-with-node-js/fontawesome-svg-core/index.es.js

/*!
 * Font Awesome Free 5.4.2 by @fontawesome - https://fontawesome.com
 * License - https://fontawesome.com/license/free (Icons: CC BY 4.0, Fonts: SIL OFL 1.1, Code: MIT License)
 */
var noop = function noop() {};

var _WINDOW = {};
var _DOCUMENT = {};
var _MUTATION_OBSERVER$1 = 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$1 = MutationObserver;
  if (typeof performance !== 'undefined') _PERFORMANCE = performance;
} catch (e) {}

var _ref = _WINDOW.navigator || {};
var _ref$userAgent = _ref.userAgent;
var userAgent = _ref$userAgent === undefined ? '' : _ref$userAgent;

var WINDOW = _WINDOW;
var DOCUMENT = _DOCUMENT;
var MUTATION_OBSERVER = _MUTATION_OBSERVER$1;
var PERFORMANCE = _PERFORMANCE;

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 NAMESPACE_IDENTIFIER = '___FONT_AWESOME___';
var UNITS_IN_GRID = 16;
var DEFAULT_FAMILY_PREFIX = 'fa';
var DEFAULT_REPLACEMENT_CLASS = 'svg-inline--fa';
var DATA_FA_I2SVG = 'data-fa-i2svg';
var DATA_FA_PSEUDO_ELEMENT = 'data-fa-pseudo-element';
var DATA_PREFIX = 'data-prefix';
var DATA_ICON = 'data-icon';
var HTML_CLASS_I2SVG_BASE_CLASS = 'fontawesome-i2svg';
var TAGNAMES_TO_SKIP_FOR_PSEUDOELEMENTS = ['HTML', 'HEAD', 'STYLE', 'SCRIPT'];
var PRODUCTION = function () {
  try {
    return process.env.NODE_ENV === 'production';
  } catch (e) {
    return false;
  }
}();

var oneToTen = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
var oneToTwenty = oneToTen.concat([11, 12, 13, 14, 15, 16, 17, 18, 19, 20]);

var ATTRIBUTES_WATCHED_FOR_MUTATION = ['class', 'data-prefix', 'data-icon', 'data-fa-transform', 'data-fa-mask'];

var RESERVED_CLASSES = ['xs', 'sm', 'lg', 'fw', 'ul', 'li', 'border', 'pull-left', 'pull-right', 'spin', 'pulse', 'rotate-90', 'rotate-180', 'rotate-270', 'flip-horizontal', 'flip-vertical', 'stack', 'stack-1x', 'stack-2x', 'inverse', 'layers', 'layers-text', 'layers-counter'].concat(oneToTen.map(function (n) {
  return n + 'x';
})).concat(oneToTwenty.map(function (n) {
  return 'w-' + n;
}));

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

var createClass = 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);
    }
  }

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



var _extends = Object.assign || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};



var slicedToArray = function () {
  function sliceIterator(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"]) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

    return _arr;
  }

  return function (arr, i) {
    if (Array.isArray(arr)) {
      return arr;
    } else if (Symbol.iterator in Object(arr)) {
      return sliceIterator(arr, i);
    } else {
      throw new TypeError("Invalid attempt to destructure non-iterable instance");
    }
  };
}();

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

    return arr2;
  } else {
    return Array.from(arr);
  }
};

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-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 = _extends({
  familyPrefix: DEFAULT_FAMILY_PREFIX,
  replacementClass: DEFAULT_REPLACEMENT_CLASS,
  autoReplaceSvg: true,
  autoAddCss: true,
  autoA11y: true,
  searchPseudoElements: false,
  observeMutations: true,
  keepOriginalSource: true,
  measurePerformance: false,
  showMissingIcons: true
}, initial);

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

var config = _extends({}, _default);

WINDOW.FontAwesomeConfig = config;

var w = WINDOW || {};

if (!w[NAMESPACE_IDENTIFIER]) w[NAMESPACE_IDENTIFIER] = {};
if (!w[NAMESPACE_IDENTIFIER].styles) w[NAMESPACE_IDENTIFIER].styles = {};
if (!w[NAMESPACE_IDENTIFIER].hooks) w[NAMESPACE_IDENTIFIER].hooks = {};
if (!w[NAMESPACE_IDENTIFIER].shims) w[NAMESPACE_IDENTIFIER].shims = [];

var namespace = w[NAMESPACE_IDENTIFIER];

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);
}

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

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 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 ('' + 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 + (attributeName + '="' + htmlEscape(attributes[attributeName]) + '" ');
  }, '').trim();
}

function joinStyles(styles) {
  return Object.keys(styles || {}).reduce(function (acc, styleName) {
    return acc + (styleName + ': ' + 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(' + containerWidth / 2 + ' 256)'
  };
  var innerTranslate = 'translate(' + transform.x * 32 + ', ' + transform.y * 32 + ') ';
  var innerScale = 'scale(' + transform.size / 16 * (transform.flipX ? -1 : 1) + ', ' + transform.size / 16 * (transform.flipY ? -1 : 1) + ') ';
  var innerRotate = 'rotate(' + transform.rotate + ' 0 0)';
  var inner = {
    transform: innerTranslate + ' ' + innerScale + ' ' + innerRotate
  };
  var path = {
    transform: 'translate(' + 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 === undefined ? UNITS_IN_GRID : _ref2$width,
      _ref2$height = _ref2.height,
      height = _ref2$height === undefined ? UNITS_IN_GRID : _ref2$height,
      _ref2$startCentered = _ref2.startCentered,
      startCentered = _ref2$startCentered === undefined ? false : _ref2$startCentered;

  var val = '';

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

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

  return val;
}

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

var makeIconMasking = function (_ref) {
  var children = _ref.children,
      attributes = _ref.attributes,
      main = _ref.main,
      mask = _ref.mask,
      transform = _ref.transform;
  var mainWidth = main.width,
      mainPath = main.icon;
  var maskWidth = mask.width,
      maskPath = mask.icon;


  var trans = transformForSvg({ transform: transform, containerWidth: maskWidth, iconWidth: mainWidth });

  var maskRect = {
    tag: 'rect',
    attributes: _extends({}, ALL_SPACE, {
      fill: 'white'
    })
  };
  var maskInnerGroup = {
    tag: 'g',
    attributes: _extends({}, trans.inner),
    children: [{ tag: 'path', attributes: _extends({}, mainPath.attributes, trans.path, { fill: 'black' }) }]
  };
  var maskOuterGroup = {
    tag: 'g',
    attributes: _extends({}, trans.outer),
    children: [maskInnerGroup]
  };
  var maskId = 'mask-' + nextUniqueId();
  var clipId = 'clip-' + nextUniqueId();
  var maskTag = {
    tag: 'mask',
    attributes: _extends({}, ALL_SPACE, {
      id: maskId,
      maskUnits: 'userSpaceOnUse',
      maskContentUnits: 'userSpaceOnUse'
    }),
    children: [maskRect, maskOuterGroup]
  };
  var defs = {
    tag: 'defs',
    children: [{ tag: 'clipPath', attributes: { id: clipId }, children: [maskPath] }, maskTag]
  };

  children.push(defs, { tag: 'rect', attributes: _extends({ fill: 'currentColor', 'clip-path': 'url(#' + clipId + ')', mask: 'url(#' + maskId + ')' }, ALL_SPACE) });

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

var makeIconStandard = function (_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: _extends({}, trans.outer),
      children: [{
        tag: 'g',
        attributes: _extends({}, trans.inner),
        children: [{
          tag: main.icon.tag,
          children: main.icon.children,
          attributes: _extends({}, main.icon.attributes, trans.path)
        }]
      }]
    });
  } else {
    children.push(main.icon);
  }

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

var asIcon = function (_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(_extends({}, styles, {
      'transform-origin': offset.x + transform.x / 16 + 'em ' + (offset.y + transform.y / 16) + 'em'
    }));
  }

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

var asSymbol = function (_ref) {
  var prefix = _ref.prefix,
      iconName = _ref.iconName,
      children = _ref.children,
      attributes = _ref.attributes,
      symbol = _ref.symbol;

  var id = symbol === true ? prefix + '-' + config.familyPrefix + '-' + iconName : symbol;

  return [{
    tag: 'svg',
    attributes: {
      style: 'display: none;'
    },
    children: [{
      tag: 'symbol',
      attributes: _extends({}, attributes, { id: id }),
      children: children
    }]
  }];
};

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

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

  var widthClass = 'fa-w-' + Math.ceil(width / height * 16);
  var attrClass = [config.replacementClass, iconName ? config.familyPrefix + '-' + iconName : '', widthClass].filter(function (c) {
    return extra.classes.indexOf(c) === -1;
  }).concat(extra.classes).join(' ');

  var content = {
    children: [],
    attributes: _extends({}, extra.attributes, {
      'data-prefix': prefix,
      'data-icon': iconName,
      'class': attrClass,
      'role': 'img',
      'xmlns': 'http://www.w3.org/2000/svg',
      'viewBox': '0 0 ' + width + ' ' + height
    })
  };

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

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

  var args = _extends({}, content, {
    prefix: prefix,
    iconName: iconName,
    main: main,
    mask: mask,
    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 === undefined ? false : _params$watchable2;


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

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

  var styles = _extends({}, 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 = _extends({}, 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$2 = function noop() {};
var p = config.measurePerformance && PERFORMANCE && PERFORMANCE.mark && PERFORMANCE.measure ? PERFORMANCE : { mark: noop$2, measure: noop$2 };
var preamble = 'FA "5.4.2"';

var begin = function begin(name) {
  p.mark(preamble + ' ' + name + ' begins');
  return function () {
    return end(name);
  };
};

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

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

'use strict';

/**
 * 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);
  };
};

'use strict';



/**
 * # 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;
};

var styles$2 = namespace.styles;
var shims = namespace.shims;


var _byUnicode = {};
var _byLigature = {};
var _byOldName = {};

var build = function build() {
  var lookup = function lookup(reducer) {
    return reduce(styles$2, function (o, style, prefix) {
      o[prefix] = reduce(style, reducer, {});
      return o;
    }, {});
  };

  _byUnicode = lookup(function (acc, icon, iconName) {
    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$2;

  _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 (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 === undefined ? {} : _abstractNodes$attrib,
      _abstractNodes$childr = abstractNodes.children,
      children = _abstractNodes$childr === undefined ? [] : _abstractNodes$childr;


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

var noop$1 = 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' ? '<!-- ' + node.outerHTML + ' -->' : '');
    } 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(config.familyPrefix + '-.*');

    delete abstract[0].attributes.style;

    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 perform(mutations, callback) {
  var callbackFunction = typeof callback === 'function' ? callback : noop$1;

  if (mutations.length === 0) {
    callbackFunction();
  } else {
    var frame = WINDOW.requestAnimationFrame || function (op) {
      return op();
    };

    frame(function () {
      var mutator = getMutator();
      var mark = perf.begin('mutate');

      mutations.map(mutator);

      mark();

      callbackFunction();
    });
  }
}

var disabled = false;

function disableObservation(operation) {
  disabled = true;
  operation();
  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 === undefined ? DOCUMENT.body : _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();
}

var styleParser = function (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 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;
}

var classParser = function (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);
  }
};

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

var symbolParser = function (node) {
  var symbol = node.getAttribute('data-fa-symbol');

  return symbol === null ? false : symbol === '' ? true : symbol;
};

var attributesParser = function (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');

  if (config.autoA11y) {
    if (title) {
      extraAttributes['aria-labelledby'] = config.replacementClass + '-title-' + nextUniqueId();
    } else {
      extraAttributes['aria-hidden'] = 'true';
    }
  }

  return extraAttributes;
};

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

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

var blankMeta = {
  iconName: null,
  title: null,
  prefix: null,
  transform: meaninglessTransform,
  symbol: false,
  mask: 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'),
    prefix: prefix,
    transform: transform,
    symbol: symbol,
    mask: mask,
    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 FILL = { fill: 'currentColor' };
var ANIMATION_BASE = {
  attributeType: 'XML',
  repeatCount: 'indefinite',
  dur: '2s'
};
var RING = {
  tag: 'path',
  attributes: _extends({}, FILL, {
    d: 'M156.5,447.7l-12.6,29.5c-18.7-9.5-35.9-21.2-51.5-34.9l22.7-22.7C127.6,430.5,141.5,440,156.5,447.7z M40.6,272H8.5 c1.4,21.2,5.4,41.7,11.7,61.1L50,321.2C45.1,305.5,41.8,289,40.6,272z M40.6,240c1.4-18.8,5.2-37,11.1-54.1l-29.5-12.6 C14.7,194.3,10,216.7,8.5,240H40.6z M64.3,156.5c7.8-14.9,17.2-28.8,28.1-41.5L69.7,92.3c-13.7,15.6-25.5,32.8-34.9,51.5 L64.3,156.5z M397,419.6c-13.9,12-29.4,22.3-46.1,30.4l11.9,29.8c20.7-9.9,39.8-22.6,56.9-37.6L397,419.6z M115,92.4 c13.9-12,29.4-22.3,46.1-30.4l-11.9-29.8c-20.7,9.9-39.8,22.6-56.8,37.6L115,92.4z M447.7,355.5c-7.8,14.9-17.2,28.8-28.1,41.5 l22.7,22.7c13.7-15.6,25.5-32.9,34.9-51.5L447.7,355.5z M471.4,272c-1.4,18.8-5.2,37-11.1,54.1l29.5,12.6 c7.5-21.1,12.2-43.5,13.6-66.8H471.4z M321.2,462c-15.7,5-32.2,8.2-49.2,9.4v32.1c21.2-1.4,41.7-5.4,61.1-11.7L321.2,462z M240,471.4c-18.8-1.4-37-5.2-54.1-11.1l-12.6,29.5c21.1,7.5,43.5,12.2,66.8,13.6V471.4z M462,190.8c5,15.7,8.2,32.2,9.4,49.2h32.1 c-1.4-21.2-5.4-41.7-11.7-61.1L462,190.8z M92.4,397c-12-13.9-22.3-29.4-30.4-46.1l-29.8,11.9c9.9,20.7,22.6,39.8,37.6,56.9 L92.4,397z M272,40.6c18.8,1.4,36.9,5.2,54.1,11.1l12.6-29.5C317.7,14.7,295.3,10,272,8.5V40.6z M190.8,50 c15.7-5,32.2-8.2,49.2-9.4V8.5c-21.2,1.4-41.7,5.4-61.1,11.7L190.8,50z M442.3,92.3L419.6,115c12,13.9,22.3,29.4,30.5,46.1 l29.8-11.9C470,128.5,457.3,109.4,442.3,92.3z M397,92.4l22.7-22.7c-15.6-13.7-32.8-25.5-51.5-34.9l-12.6,29.5 C370.4,72.1,384.4,81.5,397,92.4z'
  })
};
var OPACITY_ANIMATE = _extends({}, ANIMATION_BASE, {
  attributeName: 'opacity'
});
var DOT = {
  tag: 'circle',
  attributes: _extends({}, FILL, {
    cx: '256',
    cy: '364',
    r: '28'
  }),
  children: [{ tag: 'animate', attributes: _extends({}, ANIMATION_BASE, { attributeName: 'r', values: '28;14;28;28;14;28;' }) }, { tag: 'animate', attributes: _extends({}, OPACITY_ANIMATE, { values: '1;0;1;1;0;1;' }) }]
};
var QUESTION = {
  tag: 'path',
  attributes: _extends({}, FILL, {
    opacity: '1',
    d: 'M263.7,312h-16c-6.6,0-12-5.4-12-12c0-71,77.4-63.9,77.4-107.8c0-20-17.8-40.2-57.4-40.2c-29.1,0-44.3,9.6-59.2,28.7 c-3.9,5-11.1,6-16.2,2.4l-13.1-9.2c-5.6-3.9-6.9-11.8-2.6-17.2c21.2-27.2,46.4-44.7,91.2-44.7c52.3,0,97.4,29.8,97.4,80.2 c0,67.6-77.4,63.5-77.4,107.8C275.7,306.6,270.3,312,263.7,312z'
  }),
  children: [{ tag: 'animate', attributes: _extends({}, OPACITY_ANIMATE, { values: '1;0;0;0;0;1;' }) }]
};
var EXCLAMATION = {
  tag: 'path',
  attributes: _extends({}, FILL, {
    opacity: '0',
    d: 'M232.5,134.5l7,168c0.3,6.4,5.6,11.5,12,11.5h9c6.4,0,11.7-5.1,12-11.5l7-168c0.3-6.8-5.2-12.5-12-12.5h-23 C237.7,122,232.2,127.7,232.5,134.5z'
  }),
  children: [{ tag: 'animate', attributes: _extends({}, OPACITY_ANIMATE, { values: '0;0;1;1;0;0;' }) }]
};

var missing = { tag: 'g', children: [RING, DOT, QUESTION, EXCLAMATION] };

var styles = namespace.styles;

var LAYERS_TEXT_CLASSNAME = 'fa-layers-text';
var FONT_FAMILY_PATTERN = /Font Awesome 5 (Solid|Regular|Light|Brands|Free|Pro)/;
var STYLE_TO_PREFIX = {
  'Solid': 'fas',
  'Regular': 'far',
  'Light': 'fal',
  'Brands': 'fab'
};
var FONT_WEIGHT_TO_PREFIX = {
  '900': 'fas',
  '400': 'far',
  '300': 'fal'
};

function findIcon(iconName, prefix) {
  var val = {
    found: false,
    width: 512,
    height: 512,
    icon: missing
  };

  if (iconName && prefix && styles[prefix] && styles[prefix][iconName]) {
    var icon = styles[prefix][iconName];
    var width = icon[0];
    var height = icon[1];
    var vectorData = icon.slice(4);

    val = {
      found: true,
      width: width,
      height: height,
      icon: { tag: 'path', attributes: { fill: 'currentColor', d: vectorData[0] } }
    };
  } else if (iconName && prefix && !config.showMissingIcons) {
    throw new MissingIcon('Icon is missing for prefix ' + prefix + ' with icon name ' + iconName);
  }

  return val;
}

function generateSvgReplacementMutation(node, nodeMeta) {
  var iconName = nodeMeta.iconName,
      title = nodeMeta.title,
      prefix = nodeMeta.prefix,
      transform = nodeMeta.transform,
      symbol = nodeMeta.symbol,
      mask = nodeMeta.mask,
      extra = nodeMeta.extra;


  return [node, makeInlineSvgAbstract({
    icons: {
      main: findIcon(iconName, prefix),
      mask: findIcon(mask.iconName, mask.prefix)
    },
    prefix: prefix,
    iconName: iconName,
    transform: transform,
    symbol: symbol,
    mask: mask,
    title: title,
    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 [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 searchPseudoElements(root) {
  if (!IS_DOM) return;

  var end = perf.begin('searchPseudoElements');

  disableObservation(function () {
    toArray(root.querySelectorAll('*')).filter(function (n) {
      return n.parentNode !== document.head && !~TAGNAMES_TO_SKIP_FOR_PSEUDOELEMENTS.indexOf(n.tagName.toUpperCase()) && !n.getAttribute(DATA_FA_PSEUDO_ELEMENT) && (!n.parentNode || n.parentNode.tagName !== 'svg');
    }).forEach(function (node) {
      [':before', ':after'].forEach(function (pos) {
        var children = toArray(node.children);
        var alreadyProcessedPseudoElement = children.filter(function (c) {
          return c.getAttribute(DATA_FA_PSEUDO_ELEMENT) === pos;
        })[0];

        var styles = WINDOW.getComputedStyle(node, pos);
        var fontFamily = styles.getPropertyValue('font-family').match(FONT_FAMILY_PATTERN);
        var fontWeight = styles.getPropertyValue('font-weight');

        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);
        } else if (fontFamily) {
          var content = styles.getPropertyValue('content');
          var prefix = ~['Light', 'Regular', 'Solid', 'Brands'].indexOf(fontFamily[1]) ? STYLE_TO_PREFIX[fontFamily[1]] : FONT_WEIGHT_TO_PREFIX[fontWeight];
          var iconName = byUnicode(prefix, toHex(content.length === 3 ? content.substr(1, 1) : content));
          // 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 (!alreadyProcessedPseudoElement || alreadyProcessedPseudoElement.getAttribute(DATA_PREFIX) !== prefix || alreadyProcessedPseudoElement.getAttribute(DATA_ICON) !== iconName) {
            if (alreadyProcessedPseudoElement) {
              // Delete the old one, since we're replacing it with a new one
              node.removeChild(alreadyProcessedPseudoElement);
            }

            var extra = blankMeta.extra;

            extra.attributes[DATA_FA_PSEUDO_ELEMENT] = pos;
            var abstract = makeInlineSvgAbstract(_extends({}, blankMeta, {
              icons: {
                main: findIcon(iconName, prefix),
                mask: emptyCanonicalIcon()
              },
              prefix: prefix,
              iconName: iconName,
              extra: extra,
              watchable: true
            }));

            var element = DOCUMENT.createElement('svg');

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

            element.outerHTML = abstract.map(function (a) {
              return toHtml(a);
            }).join('\n');
          }
        }
      });
    });
  });

  end();
}

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(HTML_CLASS_I2SVG_BASE_CLASS + '-' + suffix);
  };
  var hclRemove = function hclRemove(suffix) {
    return htmlClassList.remove(HTML_CLASS_I2SVG_BASE_CLASS + '-' + suffix);
  };
  var prefixes = Object.keys(styles);
  var prefixesDomQuery = ['.' + LAYERS_TEXT_CLASSNAME + ':not([' + DATA_FA_I2SVG + '])'].concat(prefixes.map(function (p) {
    return '.' + p + ':not([' + DATA_FA_I2SVG + '])';
  })).join(', ');

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

  var candidates = toArray(root.querySelectorAll(prefixesDomQuery));

  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;
  }, []);

  mark();

  perform(mutations, function () {
    hclAdd('active');
    hclAdd('complete');
    hclRemove('pending');

    if (typeof callback === 'function') callback();
  });
}

function onNode(node) {
  var callback = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : null;

  var mutation = generateMutation(node);

  if (mutation) {
    perform([mutation], callback);
  }
}

var baseStyles = "svg:not(:root).svg-inline--fa {\n  overflow: visible; }\n\n.svg-inline--fa {\n  display: inline-block;\n  font-size: inherit;\n  height: 1em;\n  overflow: visible;\n  vertical-align: -.125em; }\n  .svg-inline--fa.fa-lg {\n    vertical-align: -.225em; }\n  .svg-inline--fa.fa-w-1 {\n    width: 0.0625em; }\n  .svg-inline--fa.fa-w-2 {\n    width: 0.125em; }\n  .svg-inline--fa.fa-w-3 {\n    width: 0.1875em; }\n  .svg-inline--fa.fa-w-4 {\n    width: 0.25em; }\n  .svg-inline--fa.fa-w-5 {\n    width: 0.3125em; }\n  .svg-inline--fa.fa-w-6 {\n    width: 0.375em; }\n  .svg-inline--fa.fa-w-7 {\n    width: 0.4375em; }\n  .svg-inline--fa.fa-w-8 {\n    width: 0.5em; }\n  .svg-inline--fa.fa-w-9 {\n    width: 0.5625em; }\n  .svg-inline--fa.fa-w-10 {\n    width: 0.625em; }\n  .svg-inline--fa.fa-w-11 {\n    width: 0.6875em; }\n  .svg-inline--fa.fa-w-12 {\n    width: 0.75em; }\n  .svg-inline--fa.fa-w-13 {\n    width: 0.8125em; }\n  .svg-inline--fa.fa-w-14 {\n    width: 0.875em; }\n  .svg-inline--fa.fa-w-15 {\n    width: 0.9375em; }\n  .svg-inline--fa.fa-w-16 {\n    width: 1em; }\n  .svg-inline--fa.fa-w-17 {\n    width: 1.0625em; }\n  .svg-inline--fa.fa-w-18 {\n    width: 1.125em; }\n  .svg-inline--fa.fa-w-19 {\n    width: 1.1875em; }\n  .svg-inline--fa.fa-w-20 {\n    width: 1.25em; }\n  .svg-inline--fa.fa-pull-left {\n    margin-right: .3em;\n    width: auto; }\n  .svg-inline--fa.fa-pull-right {\n    margin-left: .3em;\n    width: auto; }\n  .svg-inline--fa.fa-border {\n    height: 1.5em; }\n  .svg-inline--fa.fa-li {\n    width: 2em; }\n  .svg-inline--fa.fa-fw {\n    width: 1.25em; }\n\n.fa-layers svg.svg-inline--fa {\n  bottom: 0;\n  left: 0;\n  margin: auto;\n  position: absolute;\n  right: 0;\n  top: 0; }\n\n.fa-layers {\n  display: inline-block;\n  height: 1em;\n  position: relative;\n  text-align: center;\n  vertical-align: -.125em;\n  width: 1em; }\n  .fa-layers svg.svg-inline--fa {\n    -webkit-transform-origin: center center;\n            transform-origin: center center; }\n\n.fa-layers-text, .fa-layers-counter {\n  display: inline-block;\n  position: absolute;\n  text-align: center; }\n\n.fa-layers-text {\n  left: 50%;\n  top: 50%;\n  -webkit-transform: translate(-50%, -50%);\n          transform: translate(-50%, -50%);\n  -webkit-transform-origin: center center;\n          transform-origin: center center; }\n\n.fa-layers-counter {\n  background-color: #ff253a;\n  border-radius: 1em;\n  -webkit-box-sizing: border-box;\n          box-sizing: border-box;\n  color: #fff;\n  height: 1.5em;\n  line-height: 1;\n  max-width: 5em;\n  min-width: 1.5em;\n  overflow: hidden;\n  padding: .25em;\n  right: 0;\n  text-overflow: ellipsis;\n  top: 0;\n  -webkit-transform: scale(0.25);\n          transform: scale(0.25);\n  -webkit-transform-origin: top right;\n          transform-origin: top right; }\n\n.fa-layers-bottom-right {\n  bottom: 0;\n  right: 0;\n  top: auto;\n  -webkit-transform: scale(0.25);\n          transform: scale(0.25);\n  -webkit-transform-origin: bottom right;\n          transform-origin: bottom right; }\n\n.fa-layers-bottom-left {\n  bottom: 0;\n  left: 0;\n  right: auto;\n  top: auto;\n  -webkit-transform: scale(0.25);\n          transform: scale(0.25);\n  -webkit-transform-origin: bottom left;\n          transform-origin: bottom left; }\n\n.fa-layers-top-right {\n  right: 0;\n  top: 0;\n  -webkit-transform: scale(0.25);\n          transform: scale(0.25);\n  -webkit-transform-origin: top right;\n          transform-origin: top right; }\n\n.fa-layers-top-left {\n  left: 0;\n  right: auto;\n  top: 0;\n  -webkit-transform: scale(0.25);\n          transform: scale(0.25);\n  -webkit-transform-origin: top left;\n          transform-origin: top left; }\n\n.fa-lg {\n  font-size: 1.33333em;\n  line-height: 0.75em;\n  vertical-align: -.0667em; }\n\n.fa-xs {\n  font-size: .75em; }\n\n.fa-sm {\n  font-size: .875em; }\n\n.fa-1x {\n  font-size: 1em; }\n\n.fa-2x {\n  font-size: 2em; }\n\n.fa-3x {\n  font-size: 3em; }\n\n.fa-4x {\n  font-size: 4em; }\n\n.fa-5x {\n  font-size: 5em; }\n\n.fa-6x {\n  font-size: 6em; }\n\n.fa-7x

var css = function () {
  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('\\.' + dfp + '\\-', 'g');
    var rPatt = new RegExp('\\.' + drc, 'g');

    s = s.replace(dPatt, '.' + fp + '-').replace(rPatt, '.' + rc);
  }

  return s;
};

function define(prefix, icons) {
  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') {
    namespace.hooks.addPack(prefix, normalized);
  } else {
    namespace.styles[prefix] = _extends({}, 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') {
    define('fa', icons);
  }
}

var Library = function () {
  function Library() {
    classCallCheck(this, Library);

    this.definitions = {};
  }

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

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

      var additions = definitions.reduce(this._pullDefinitions, {});

      Object.keys(additions).forEach(function (key) {
        _this.definitions[key] = _extends({}, _this.definitions[key] || {}, additions[key]);
        define(key, additions[key]);
        build();
      });
    }
  }, {
    key: 'reset',
    value: function reset() {
      this.definitions = {};
    }
  }, {
    key: '_pullDefinitions',
    value: function _pullDefinitions(additions, definition) {
      var normalized = definition.prefix && definition.iconName && definition.icon ? { 0: definition } : definition;

      Object.keys(normalized).map(function (key) {
        var _normalized$key = normalized[key],
            prefix = _normalized$key.prefix,
            iconName = _normalized$key.iconName,
            icon = _normalized$key.icon;


        if (!additions[prefix]) additions[prefix] = {};

        additions[prefix][iconName] = icon;
      });

      return additions;
    }
  }]);
  return Library;
}();

function prepIcon(icon) {
  var width = icon[0];
  var height = icon[1];
  var vectorData = icon.slice(4);

  return {
    found: true,
    width: width,
    height: height,
    icon: { tag: 'path', attributes: { fill: 'currentColor', d: vectorData[0] } }
  };
}

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

function apiObject(val, abstractCreator) {
  Object.defineProperty(val, 'abstract', {
    get: abstractCreator
  });

  Object.defineProperty(val, 'html', {
    get: function get() {
      return val.abstract.map(function (a) {
        return toHtml(a);
      });
    }
  });

  Object.defineProperty(val, 'node', {
    get: function get() {
      if (!IS_DOM) return;

      var container = DOCUMENT.createElement('div');
      container.innerHTML = val.html;
      return container.children;
    }
  });

  return val;
}

function findIconDefinition(params) {
  var _params$prefix = params.prefix,
      prefix = _params$prefix === undefined ? 'fa' : _params$prefix,
      iconName = params.iconName;


  if (!iconName) return;

  return iconFromMapping(library.definitions, prefix, iconName) || iconFromMapping(namespace.styles, prefix, iconName);
}

function resolveIcons(next) {
  return function (maybeIconDefinition) {
    var params = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    var iconDefinition = (maybeIconDefinition || {}).icon ? maybeIconDefinition : findIconDefinition(maybeIconDefinition || {});

    var mask = params.mask;


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

    return next(iconDefinition, _extends({}, 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 === undefined ? DOCUMENT : _params$node,
          _params$callback = params.callback,
          callback = _params$callback === undefined ? function () {} : _params$callback;


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

      onTree(node, callback);
    }
  },

  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 === undefined ? meaninglessTransform : _params$transform,
      _params$symbol = params.symbol,
      symbol = _params$symbol === undefined ? false : _params$symbol,
      _params$mask = params.mask,
      mask = _params$mask === undefined ? null : _params$mask,
      _params$title = params.title,
      title = _params$title === undefined ? null : _params$title,
      _params$classes = params.classes,
      classes = _params$classes === undefined ? [] : _params$classes,
      _params$attributes = params.attributes,
      attributes = _params$attributes === undefined ? {} : _params$attributes,
      _params$styles = params.styles,
      styles = _params$styles === undefined ? {} : _params$styles;


  if (!iconDefinition) return;

  var prefix = iconDefinition.prefix,
      iconName = iconDefinition.iconName,
      icon = iconDefinition.icon;


  return apiObject(_extends({ type: 'icon' }, iconDefinition), function () {
    ensureCss();

    if (config.autoA11y) {
      if (title) {
        attributes['aria-labelledby'] = config.replacementClass + '-title-' + nextUniqueId();
      } else {
        attributes['aria-hidden'] = 'true';
      }
    }

    return makeInlineSvgAbstract({
      icons: {
        main: prepIcon(icon),
        mask: mask ? prepIcon(mask.icon) : { found: false, width: null, height: null, icon: {} }
      },
      prefix: prefix,
      iconName: iconName,
      transform: _extends({}, meaninglessTransform, transform),
      symbol: symbol,
      title: title,
      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 === undefined ? meaninglessTransform : _params$transform2,
      _params$title2 = params.title,
      title = _params$title2 === undefined ? null : _params$title2,
      _params$classes2 = params.classes,
      classes = _params$classes2 === undefined ? [] : _params$classes2,
      _params$attributes2 = params.attributes,
      attributes = _params$attributes2 === undefined ? {} : _params$attributes2,
      _params$styles2 = params.styles,
      styles = _params$styles2 === undefined ? {} : _params$styles2;


  return apiObject({ type: 'text', content: content }, function () {
    ensureCss();

    return makeLayersTextAbstract({
      content: content,
      transform: _extends({}, meaninglessTransform, transform),
      title: title,
      extra: {
        attributes: attributes,
        styles: styles,
        classes: [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 === undefined ? null : _params$title3,
      _params$classes3 = params.classes,
      classes = _params$classes3 === undefined ? [] : _params$classes3,
      _params$attributes3 = params.attributes,
      attributes = _params$attributes3 === undefined ? {} : _params$attributes3,
      _params$styles3 = params.styles,
      styles = _params$styles3 === undefined ? {} : _params$styles3;


  return apiObject({ type: 'counter', content: content }, function () {
    ensureCss();

    return makeLayersCounterAbstract({
      content: content.toString(),
      title: title,
      extra: {
        attributes: attributes,
        styles: styles,
        classes: [config.familyPrefix + '-layers-counter'].concat(toConsumableArray(classes))
      }
    });
  });
};

var layer = function layer(assembler) {
  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: config.familyPrefix + '-layers' },
      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
};

var autoReplace = function autoReplace() {
  var params = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : {};
  var _params$autoReplaceSv = params.autoReplaceSvgRoot,
      autoReplaceSvgRoot = _params$autoReplaceSv === undefined ? DOCUMENT : _params$autoReplaceSv;


  if (Object.keys(namespace.styles).length > 0 && IS_DOM && config.autoReplaceSvg) api.dom.i2svg({ node: autoReplaceSvgRoot });
};

export { icon, noAuto, config, toHtml, layer, text, counter, library, dom, parse, findIconDefinition };