lucid-ui/lib/components/Resizer/Resizer.js

A UI component library from AppNexus.

function _typeof(obj) { "@babel/helpers - typeof"; if (typeof Symbol === "function" && typeof Symbol.iterator === "symbol") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; }; } return _typeof(obj); }

import _keys from "lodash/keys";

function _extends() { _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; }; return _extends.apply(this, arguments); }

function _objectWithoutProperties(source, excluded) { if (source == null) return {}; var target = _objectWithoutPropertiesLoose(source, excluded); var key, i; if (Object.getOwnPropertySymbols) { var sourceSymbolKeys = Object.getOwnPropertySymbols(source); for (i = 0; i < sourceSymbolKeys.length; i++) { key = sourceSymbolKeys[i]; if (excluded.indexOf(key) >= 0) continue; if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue; target[key] = source[key]; } } return target; }

function _objectWithoutPropertiesLoose(source, excluded) { if (source == null) return {}; var target = {}; var sourceKeys = Object.keys(source); var key, i; for (i = 0; i < sourceKeys.length; i++) { key = sourceKeys[i]; if (excluded.indexOf(key) >= 0) continue; target[key] = source[key]; } return target; }

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 _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function"); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, writable: true, configurable: true } }); if (superClass) _setPrototypeOf(subClass, superClass); }

function _setPrototypeOf(o, p) { _setPrototypeOf = Object.setPrototypeOf || function _setPrototypeOf(o, p) { o.__proto__ = p; return o; }; return _setPrototypeOf(o, p); }

function _createSuper(Derived) { var hasNativeReflectConstruct = _isNativeReflectConstruct(); return function _createSuperInternal() { var Super = _getPrototypeOf(Derived), result; if (hasNativeReflectConstruct) { var NewTarget = _getPrototypeOf(this).constructor; result = Reflect.construct(Super, arguments, NewTarget); } else { result = Super.apply(this, arguments); } return _possibleConstructorReturn(this, result); }; }

function _possibleConstructorReturn(self, call) { if (call && (_typeof(call) === "object" || typeof call === "function")) { return call; } return _assertThisInitialized(self); }

function _assertThisInitialized(self) { if (self === void 0) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return self; }

function _isNativeReflectConstruct() { if (typeof Reflect === "undefined" || !Reflect.construct) return false; if (Reflect.construct.sham) return false; if (typeof Proxy === "function") return true; try { Date.prototype.toString.call(Reflect.construct(Date, [], function () {})); return true; } catch (e) { return false; } }

function _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }

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; }

import React from 'react';
import PropTypes from 'react-peek/prop-types';
import { lucidClassNames } from '../../util/style-helpers';
import { omitProps } from '../../util/component-types';
import elementResizeDetectorMaker from 'element-resize-detector';
var cx = lucidClassNames.bind('&-Resizer');
var func = PropTypes.func,
    string = PropTypes.string;

var Resizer = /*#__PURE__*/function (_React$Component) {
  _inherits(Resizer, _React$Component);

  var _super = _createSuper(Resizer);

  function Resizer() {
    var _this;

    _classCallCheck(this, Resizer);

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

    _this = _super.call.apply(_super, [this].concat(args));

    _defineProperty(_assertThisInitialized(_this), "_element", /*#__PURE__*/React.createRef());

    _defineProperty(_assertThisInitialized(_this), "resizeDetector", elementResizeDetectorMaker({
      strategy: 'scroll'
    }));

    _defineProperty(_assertThisInitialized(_this), "state", {
      width: 0,
      height: 0
    });

    _defineProperty(_assertThisInitialized(_this), "handleResize", function (_ref) {
      var offsetWidth = _ref.offsetWidth,
          offsetHeight = _ref.offsetHeight;

      _this.setState({
        width: offsetWidth,
        height: offsetHeight
      });
    });

    return _this;
  }

  _createClass(Resizer, [{
    key: "componentDidMount",
    value: function componentDidMount() {
      if (this._element.current) {
        this.resizeDetector.listenTo(this._element.current, this.handleResize);
      }
    }
  }, {
    key: "componentWillUnmount",
    value: function componentWillUnmount() {
      if (this._element.current) {
        this.resizeDetector.removeListener(this._element.current, this.handleResize);
      }
    }
  }, {
    key: "render",
    value: function render() {
      var _this$props = this.props,
          className = _this$props.className,
          children = _this$props.children,
          passThroughs = _objectWithoutProperties(_this$props, ["className", "children"]);

      var _this$state = this.state,
          width = _this$state.width,
          height = _this$state.height;
      return /*#__PURE__*/React.createElement("div", _extends({}, omitProps(passThroughs, undefined, _keys(Resizer.propTypes)), {
        className: cx('&', className),
        ref: this._element
      }), children && children(width, height));
    }
  }]);

  return Resizer;
}(React.Component);

_defineProperty(Resizer, "displayName", 'Resizer');

_defineProperty(Resizer, "peek", {
  description: "\n\t\t\tThis is a helper component used for getting the width and height of a\n\t\t\tcontaining element. This component doesn't take normal children. It\n\t\t\texpects you to pass a single function for children. It will then call\n\t\t\tthat function with new `width` and `height` values if the container\n\t\t\tsize changes.\n\t\t",
  categories: ['utility']
});

_defineProperty(Resizer, "propTypes", {
  className: string,
  children: func
});

export default Resizer;