text: "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.toArray = toArray;
  exports.getActiveIndex = getActiveIndex;
  exports.getActiveKey = getActiveKey;
  exports.setTransform = setTransform;
  exports.isTransform3dSupported = isTransform3dSupported;
  exports.setTransition = setTransition;
  exports.getTransformPropValue = getTransformPropValue;
  exports.isVertical = isVertical;
  exports.getTransformByIndex = getTransformByIndex;
  exports.getMarginStyle = getMarginStyle;
  exports.getStyle = getStyle;
  exports.setPxStyle = setPxStyle;
  exports.getDataAttr = getDataAttr;
  exports.getLeft = getLeft;
  exports.getTop = getTop;
  
  var _react = _interopRequireDefault(require("react"));
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  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 toArray(children) {
    // allow [c,[a,b]]
    var c = [];
  
    _react.default.Children.forEach(children, function (child) {
      if (child) {
        c.push(child);
      }
    });
  
    return c;
  }
  
  function getActiveIndex(children, activeKey) {
    var c = toArray(children);
  
    for (var i = 0; i < c.length; i++) {
      if (c[i].key === activeKey) {
        return i;
      }
    }
  
    return -1;
  }
  
  function getActiveKey(children, index) {
    var c = toArray(children);
    return c[index].key;
  }
  
  function setTransform(style, v) {
    style.transform = v;
    style.webkitTransform = v;
    style.mozTransform = v;
  }
  
  function isTransform3dSupported(style) {
    return ('transform' in style || 'webkitTransform' in style || 'MozTransform' in style) && window.atob;
  }
  
  function setTransition(style, v) {
    style.transition = v;
    style.webkitTransition = v;
    style.MozTransition = v;
  }
  
  function getTransformPropValue(v) {
    return {
      transform: v,
      WebkitTransform: v,
      MozTransform: v
    };
  }
  
  function isVertical(tabBarPosition) {
    return tabBarPosition === 'left' || tabBarPosition === 'right';
  }
  
  function getTransformByIndex(index, tabBarPosition) {
    var direction = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'ltr';
    var translate = isVertical(tabBarPosition) ? 'translateY' : 'translateX';
  
    if (!isVertical(tabBarPosition) && direction === 'rtl') {
      return "".concat(translate, "(").concat(index * 100, "%) translateZ(0)");
    }
  
    return "".concat(translate, "(").concat(-index * 100, "%) translateZ(0)");
  }
  
  function getMarginStyle(index, tabBarPosition) {
    var direction = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : 'ltr';
    var marginDirection = isVertical(tabBarPosition) ? 'marginTop' : 'marginLeft';
  
    if (!isVertical(tabBarPosition) && direction === 'rtl') {
      return _defineProperty({}, marginDirection, "".concat((index + 1) * 100, "%"));
    }
  
    return _defineProperty({}, marginDirection, "".concat(-index * 100, "%"));
  }
  
  function getStyle(el, property) {
    return +window.getComputedStyle(el).getPropertyValue(property).replace('px', '');
  }
  
  function setPxStyle(el, value, vertical) {
    value = vertical ? "0px, ".concat(value, "px, 0px") : "".concat(value, "px, 0px, 0px");
    setTransform(el.style, "translate3d(".concat(value, ")"));
  }
  
  function getDataAttr(props) {
    return Object.keys(props).reduce(function (prev, key) {
      if (key.substr(0, 5) === 'aria-' || key.substr(0, 5) === 'data-' || key === 'role') {
        prev[key] = props[key];
      }
  
      return prev;
    }, {});
  }
  
  function toNum(style, property) {
    return +style.getPropertyValue(property).replace('px', '');
  }
  
  function getTypeValue(start, current, end, tabNode, wrapperNode) {
    var total = getStyle(wrapperNode, "padding-".concat(start));
  
    if (!tabNode || !tabNode.parentNode) {
      return total;
    }
  
    var childNodes = tabNode.parentNode.childNodes;
    Array.prototype.some.call(childNodes, function (node) {
      var style = window.getComputedStyle(node);
  
      if (node !== tabNode) {
        total += toNum(style, "margin-".concat(start));
        total += node[current];
        total += toNum(style, "margin-".concat(end));
  
        if (style.boxSizing === 'content-box') {
          total += toNum(style, "border-".concat(start, "-width")) + toNum(style, "border-".concat(end, "-width"));
        }
  
        return false;
      } // We need count current node margin
      // ref: https://github.com/react-component/tabs/pull/139#issuecomment-431005262
  
  
      total += toNum(style, "margin-".concat(start));
      return true;
    });
    return total;
  }
  
  function getLeft(tabNode, wrapperNode) {
    return getTypeValue('left', 'offsetWidth', 'right', tabNode, wrapperNode);
  }
  
  function getTop(tabNode, wrapperNode) {
    return getTypeValue('top', 'offsetHeight', 'bottom', tabNode, wrapperNode);
  }