qtsd-fork/example/node_modules/react-dnd/lib/DragDropContextProvider.js

Do not use this please

'use strict';

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

var _createClass = 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); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; }();

var _class, _temp;

var _react = require('react');

var _propTypes = require('prop-types');

var _propTypes2 = _interopRequireDefault(_propTypes);

var _DragDropContext = require('./DragDropContext');

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

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _possibleConstructorReturn(self, call) { if (!self) { throw new ReferenceError("this hasn't been initialised - super() hasn't been called"); } return call && (typeof call === "object" || typeof call === "function") ? call : self; }

function _inherits(subClass, superClass) { if (typeof superClass !== "function" && superClass !== null) { throw new TypeError("Super expression must either be null or a function, not " + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

/**
 * This class is a React-Component based version of the DragDropContext.
 * This is an alternative to decorating an application component with an ES7 decorator.
 */
var DragDropContextProvider = (_temp = _class = function (_Component) {
	_inherits(DragDropContextProvider, _Component);

	function DragDropContextProvider(props, context) {
		_classCallCheck(this, DragDropContextProvider);

		/**
   * This property determines which window global to use for creating the DragDropManager.
   * If a window has been injected explicitly via props, that is used first. If it is available
   * as a context value, then use that, otherwise use the browser global.
   */
		var _this = _possibleConstructorReturn(this, (DragDropContextProvider.__proto__ || Object.getPrototypeOf(DragDropContextProvider)).call(this, props, context));

		var getWindow = function getWindow() {
			if (props && props.window) {
				return props.window;
			} else if (context && context.window) {
				return context.window;
			} else if (typeof window !== 'undefined') {
				return window;
			}
			return undefined;
		};

		_this.backend = (0, _DragDropContext.unpackBackendForEs5Users)(props.backend);
		_this.childContext = (0, _DragDropContext.createChildContext)(_this.backend, {
			window: getWindow()
		});
		return _this;
	}

	_createClass(DragDropContextProvider, [{
		key: 'componentWillReceiveProps',
		value: function componentWillReceiveProps(nextProps) {
			if (nextProps.backend !== this.props.backend || nextProps.window !== this.props.window) {
				throw new Error('DragDropContextProvider backend and window props must not change.');
			}
		}
	}, {
		key: 'getChildContext',
		value: function getChildContext() {
			return this.childContext;
		}
	}, {
		key: 'render',
		value: function render() {
			return _react.Children.only(this.props.children);
		}
	}]);

	return DragDropContextProvider;
}(_react.Component), _class.propTypes = {
	backend: _propTypes2.default.oneOfType([_propTypes2.default.func, _propTypes2.default.object]).isRequired,
	children: _propTypes2.default.element.isRequired,
	window: _propTypes2.default.object // eslint-disable-line react/forbid-prop-types
}, _class.defaultProps = {
	window: undefined
}, _class.childContextTypes = _DragDropContext.CHILD_CONTEXT_TYPES, _class.displayName = 'DragDropContextProvider', _class.contextTypes = {
	window: _propTypes2.default.object
}, _temp);
exports.default = DragDropContextProvider;