React_Client_App_Access/node_modules/react-dnd/lib/createTargetConnector.js

'use strict';

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

var _wrapConnectorHooks = require('./wrapConnectorHooks');

var _wrapConnectorHooks2 = _interopRequireDefault(_wrapConnectorHooks);

var _areOptionsEqual = require('./areOptionsEqual');

var _areOptionsEqual2 = _interopRequireDefault(_areOptionsEqual);

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

function createTargetConnector(backend) {
	var currentHandlerId = void 0;

	var currentDropTargetNode = void 0;
	var currentDropTargetOptions = void 0;
	var disconnectCurrentDropTarget = void 0;

	function reconnectDropTarget() {
		if (disconnectCurrentDropTarget) {
			disconnectCurrentDropTarget();
			disconnectCurrentDropTarget = null;
		}

		if (currentHandlerId && currentDropTargetNode) {
			disconnectCurrentDropTarget = backend.connectDropTarget(currentHandlerId, currentDropTargetNode, currentDropTargetOptions);
		}
	}

	function receiveHandlerId(handlerId) {
		if (handlerId === currentHandlerId) {
			return;
		}

		currentHandlerId = handlerId;
		reconnectDropTarget();
	}

	var hooks = (0, _wrapConnectorHooks2.default)({
		dropTarget: function connectDropTarget(node, options) {
			if (node === currentDropTargetNode && (0, _areOptionsEqual2.default)(options, currentDropTargetOptions)) {
				return;
			}

			currentDropTargetNode = node;
			currentDropTargetOptions = options;

			reconnectDropTarget();
		}
	});

	return {
		receiveHandlerId: receiveHandlerId,
		hooks: hooks
	};
}