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Viewing file:     decorateHandler.js (11.24 KB)      -rw-r--r--

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = decorateHandler;

var React = _interopRequireWildcard(require("react"));

var _shallowequal = require("@react-dnd/shallowequal");

var _invariant = require("@react-dnd/invariant");

var _hoistNonReactStatics = _interopRequireDefault(require("hoist-non-react-statics"));

var _index = require("../index");

var _js_utils = require("../utils/js_utils");

var _disposables = require("./disposables");

var _utils = require("./utils");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function _getRequireWildcardCache() { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || _typeof(obj) !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

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

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

function _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === "[object Arguments]")) { return; } 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 _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

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); }

function decorateHandler(_ref) {
  var DecoratedComponent = _ref.DecoratedComponent,
      createHandler = _ref.createHandler,
      createMonitor = _ref.createMonitor,
      createConnector = _ref.createConnector,
      registerHandler = _ref.registerHandler,
      containerDisplayName = _ref.containerDisplayName,
      getType = _ref.getType,
      collect = _ref.collect,
      options = _ref.options;
  var _options$arePropsEqua = options.arePropsEqual,
      arePropsEqual = _options$arePropsEqua === void 0 ? _shallowequal.shallowEqual : _options$arePropsEqua;
  var Decorated = DecoratedComponent;
  var displayName = DecoratedComponent.displayName || DecoratedComponent.name || 'Component';

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

    function DragDropContainer(props) {
      var _this;

      _classCallCheck(this, DragDropContainer);

      _this = _possibleConstructorReturn(this, _getPrototypeOf(DragDropContainer).call(this, props));
      _this.decoratedRef = React.createRef();

      _this.handleChange = function () {
        var nextState = _this.getCurrentState();

        if (!(0, _shallowequal.shallowEqual)(nextState, _this.state)) {
          _this.setState(nextState);
        }
      };

      _this.disposable = new _disposables.SerialDisposable();

      _this.receiveProps(props);

      _this.dispose();

      return _this;
    }

    _createClass(DragDropContainer, [{
      key: "getHandlerId",
      value: function getHandlerId() {
        return this.handlerId;
      }
    }, {
      key: "getDecoratedComponentInstance",
      value: function getDecoratedComponentInstance() {
        (0, _invariant.invariant)(this.decoratedRef.current, 'In order to access an instance of the decorated component, it must either be a class component or use React.forwardRef()');
        return this.decoratedRef.current;
      }
    }, {
      key: "shouldComponentUpdate",
      value: function shouldComponentUpdate(nextProps, nextState) {
        return !arePropsEqual(nextProps, this.props) || !(0, _shallowequal.shallowEqual)(nextState, this.state);
      }
    }, {
      key: "componentDidMount",
      value: function componentDidMount() {
        this.disposable = new _disposables.SerialDisposable();
        this.currentType = undefined;
        this.receiveProps(this.props);
        this.handleChange();
      }
    }, {
      key: "componentDidUpdate",
      value: function componentDidUpdate(prevProps) {
        if (!arePropsEqual(this.props, prevProps)) {
          this.receiveProps(this.props);
          this.handleChange();
        }
      }
    }, {
      key: "componentWillUnmount",
      value: function componentWillUnmount() {
        this.dispose();
      }
    }, {
      key: "receiveProps",
      value: function receiveProps(props) {
        if (!this.handler) {
          return;
        }

        this.handler.receiveProps(props);
        this.receiveType(getType(props));
      }
    }, {
      key: "receiveType",
      value: function receiveType(type) {
        if (!this.handlerMonitor || !this.manager || !this.handlerConnector) {
          return;
        }

        if (type === this.currentType) {
          return;
        }

        this.currentType = type;

        var _registerHandler = registerHandler(type, this.handler, this.manager),
            _registerHandler2 = _slicedToArray(_registerHandler, 2),
            handlerId = _registerHandler2[0],
            unregister = _registerHandler2[1];

        this.handlerId = handlerId;
        this.handlerMonitor.receiveHandlerId(handlerId);
        this.handlerConnector.receiveHandlerId(handlerId);
        var globalMonitor = this.manager.getMonitor();
        var unsubscribe = globalMonitor.subscribeToStateChange(this.handleChange, {
          handlerIds: [handlerId]
        });
        this.disposable.setDisposable(new _disposables.CompositeDisposable(new _disposables.Disposable(unsubscribe), new _disposables.Disposable(unregister)));
      }
    }, {
      key: "dispose",
      value: function dispose() {
        this.disposable.dispose();

        if (this.handlerConnector) {
          this.handlerConnector.receiveHandlerId(null);
        }
      }
    }, {
      key: "getCurrentState",
      value: function getCurrentState() {
        if (!this.handlerConnector) {
          return {};
        }

        var nextState = collect(this.handlerConnector.hooks, this.handlerMonitor, this.props);

        if (process.env.NODE_ENV !== 'production') {
          (0, _invariant.invariant)((0, _js_utils.isPlainObject)(nextState), 'Expected `collect` specified as the second argument to ' + '%s for %s to return a plain object of props to inject. ' + 'Instead, received %s.', containerDisplayName, displayName, nextState);
        }

        return nextState;
      }
    }, {
      key: "render",
      value: function render() {
        var _this2 = this;

        return React.createElement(_index.DndContext.Consumer, null, function (_ref2) {
          var dragDropManager = _ref2.dragDropManager;

          _this2.receiveDragDropManager(dragDropManager);

          if (typeof requestAnimationFrame !== 'undefined') {
            requestAnimationFrame(function () {
              return _this2.handlerConnector.reconnect();
            });
          }

          return React.createElement(Decorated, Object.assign({}, _this2.props, _this2.getCurrentState(), {
            // NOTE: if Decorated is a Function Component, decoratedRef will not be populated unless it's a refforwarding component.
            ref: (0, _utils.isRefable)(Decorated) ? _this2.decoratedRef : null
          }));
        });
      }
    }, {
      key: "receiveDragDropManager",
      value: function receiveDragDropManager(dragDropManager) {
        if (this.manager !== undefined) {
          return;
        }

        (0, _invariant.invariant)(dragDropManager !== undefined, '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);

        if (dragDropManager === undefined) {
          return;
        }

        this.manager = dragDropManager;
        this.handlerMonitor = createMonitor(dragDropManager);
        this.handlerConnector = createConnector(dragDropManager.getBackend());
        this.handler = createHandler(this.handlerMonitor, this.decoratedRef);
      }
    }]);

    return DragDropContainer;
  }(React.Component);

  DragDropContainer.DecoratedComponent = DecoratedComponent;
  DragDropContainer.displayName = "".concat(containerDisplayName, "(").concat(displayName, ")");
  return (0, _hoistNonReactStatics.default)(DragDropContainer, DecoratedComponent);
}