text: function _typeof(obj) { 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); }
  
  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 _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 _getPrototypeOf(o) { _getPrototypeOf = Object.setPrototypeOf ? Object.getPrototypeOf : function _getPrototypeOf(o) { return o.__proto__ || Object.getPrototypeOf(o); }; return _getPrototypeOf(o); }
  
  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); }
  
  import * as React from 'react';
  import { shallowEqual } from '@react-dnd/shallowequal';
  import hoistStatics from 'hoist-non-react-statics';
  import { invariant } from '@react-dnd/invariant';
  import { DndContext } from '../index';
  import { isPlainObject } from '../utils/js_utils';
  import { isRefable, checkDecoratorArguments } from './utils';
  export function DragLayer(collect) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
    checkDecoratorArguments('DragLayer', 'collect[, options]', collect, options);
    invariant(typeof collect === 'function', 'Expected "collect" provided as the first argument to DragLayer to be a function that collects props to inject into the component. ', 'Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-layer', collect);
    invariant(isPlainObject(options), 'Expected "options" provided as the second argument to DragLayer to be a plain object when specified. ' + 'Instead, received %s. Read more: http://react-dnd.github.io/react-dnd/docs/api/drag-layer', options);
    return function decorateLayer(DecoratedComponent) {
      var Decorated = DecoratedComponent;
      var _options$arePropsEqua = options.arePropsEqual,
          arePropsEqual = _options$arePropsEqua === void 0 ? shallowEqual : _options$arePropsEqua;
      var displayName = Decorated.displayName || Decorated.name || 'Component';
  
      var DragLayerContainer =
      /*#__PURE__*/
      function (_React$Component) {
        _inherits(DragLayerContainer, _React$Component);
  
        function DragLayerContainer() {
          var _this;
  
          _classCallCheck(this, DragLayerContainer);
  
          _this = _possibleConstructorReturn(this, _getPrototypeOf(DragLayerContainer).apply(this, arguments));
          _this.isCurrentlyMounted = false;
          _this.ref = React.createRef();
  
          _this.handleChange = function () {
            if (!_this.isCurrentlyMounted) {
              return;
            }
  
            var nextState = _this.getCurrentState();
  
            if (!shallowEqual(nextState, _this.state)) {
              _this.setState(nextState);
            }
          };
  
          return _this;
        }
  
        _createClass(DragLayerContainer, [{
          key: "getDecoratedComponentInstance",
          value: function getDecoratedComponentInstance() {
            invariant(this.ref.current, 'In order to access an instance of the decorated component, it must either be a class component or use React.forwardRef()');
            return this.ref.current;
          }
        }, {
          key: "shouldComponentUpdate",
          value: function shouldComponentUpdate(nextProps, nextState) {
            return !arePropsEqual(nextProps, this.props) || !shallowEqual(nextState, this.state);
          }
        }, {
          key: "componentDidMount",
          value: function componentDidMount() {
            this.isCurrentlyMounted = true;
            this.handleChange();
          }
        }, {
          key: "componentWillUnmount",
          value: function componentWillUnmount() {
            this.isCurrentlyMounted = false;
  
            if (this.unsubscribeFromOffsetChange) {
              this.unsubscribeFromOffsetChange();
              this.unsubscribeFromOffsetChange = undefined;
            }
  
            if (this.unsubscribeFromStateChange) {
              this.unsubscribeFromStateChange();
              this.unsubscribeFromStateChange = undefined;
            }
          }
        }, {
          key: "render",
          value: function render() {
            var _this2 = this;
  
            return React.createElement(DndContext.Consumer, null, function (_ref) {
              var dragDropManager = _ref.dragDropManager;
  
              if (dragDropManager === undefined) {
                return null;
              }
  
              _this2.receiveDragDropManager(dragDropManager); // Let componentDidMount fire to initialize the collected state
  
  
              if (!_this2.isCurrentlyMounted) {
                return null;
              }
  
              return React.createElement(Decorated, Object.assign({}, _this2.props, _this2.state, {
                ref: isRefable(Decorated) ? _this2.ref : null
              }));
            });
          }
        }, {
          key: "receiveDragDropManager",
          value: function receiveDragDropManager(dragDropManager) {
            if (this.manager !== undefined) {
              return;
            }
  
            this.manager = dragDropManager;
            invariant(_typeof(dragDropManager) === 'object', 'Could not find the drag and drop manager in the context of %s. ' + 'Make sure to render a DndProvider component in your top-level component. ' + 'Read more: http://react-dnd.github.io/react-dnd/docs/troubleshooting#could-not-find-the-drag-and-drop-manager-in-the-context', displayName, displayName);
            var monitor = this.manager.getMonitor();
            this.unsubscribeFromOffsetChange = monitor.subscribeToOffsetChange(this.handleChange);
            this.unsubscribeFromStateChange = monitor.subscribeToStateChange(this.handleChange);
          }
        }, {
          key: "getCurrentState",
          value: function getCurrentState() {
            if (!this.manager) {
              return {};
            }
  
            var monitor = this.manager.getMonitor();
            return collect(monitor, this.props);
          }
        }]);
  
        return DragLayerContainer;
      }(React.Component);
  
      DragLayerContainer.displayName = "DragLayer(".concat(displayName, ")");
      DragLayerContainer.DecoratedComponent = DecoratedComponent;
      return hoistStatics(DragLayerContainer, DecoratedComponent);
    };
  }