preact-dnd/lib/DragDropContext.js

Drag and Drop for Preact (port from React DnD)

'use strict';

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

var _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; };

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 _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

exports.default = DragDropContext;

var _preact = require('preact');

var _preact2 = _interopRequireDefault(_preact);

var _dndCore = require('dnd-core');

var _invariant = require('invariant');

var _invariant2 = _interopRequireDefault(_invariant);

var _checkDecoratorArguments = require('./utils/checkDecoratorArguments');

var _checkDecoratorArguments2 = _interopRequireDefault(_checkDecoratorArguments);

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

var _hoistNonReactStatics2 = _interopRequireDefault(_hoistNonReactStatics);

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; }

function DragDropContext(backendOrModule) {
  _checkDecoratorArguments2.default.apply(undefined, ['DragDropContext', 'backend'].concat(Array.prototype.slice.call(arguments)));

  // Auto-detect ES6 default export for people still using ES5
  var backend = void 0;
  if ((typeof backendOrModule === 'undefined' ? 'undefined' : _typeof(backendOrModule)) === 'object' && typeof backendOrModule.default === 'function') {
    backend = backendOrModule.default;
  } else {
    backend = backendOrModule;
  }

  (0, _invariant2.default)(typeof backend === 'function', 'Expected the backend to be a function or an ES6 module exporting a default function. ' + 'Read more: http://gaearon.github.io/react-dnd/docs-drag-drop-context.html');

  var childContext = {
    dragDropManager: new _dndCore.DragDropManager(backend)
  };

  return function decorateContext(DecoratedComponent) {
    var displayName = DecoratedComponent.displayName || DecoratedComponent.name || 'Component';

    var DragDropContextContainer = function (_Component) {
      _inherits(DragDropContextContainer, _Component);

      function DragDropContextContainer() {
        var _ref;

        var _temp, _this, _ret;

        _classCallCheck(this, DragDropContextContainer);

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

        return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref = DragDropContextContainer.__proto__ || Object.getPrototypeOf(DragDropContextContainer)).call.apply(_ref, [this].concat(args))), _this), _this.setChildRef = function (child) {
          _this.child = child;
        }, _temp), _possibleConstructorReturn(_this, _ret);
      }

      _createClass(DragDropContextContainer, [{
        key: 'getDecoratedComponentInstance',
        value: function getDecoratedComponentInstance() {
          return this.child;
        }
      }, {
        key: 'getManager',
        value: function getManager() {
          return childContext.dragDropManager;
        }
      }, {
        key: 'getChildContext',
        value: function getChildContext() {
          return childContext;
        }
      }, {
        key: 'render',
        value: function render() {
          return _preact2.default.h(DecoratedComponent, _extends({}, this.props, { ref: this.setChildRef }));
        }
      }]);

      return DragDropContextContainer;
    }(_preact.Component);

    DragDropContextContainer.DecoratedComponent = DecoratedComponent;
    DragDropContextContainer.displayName = 'DragDropContext(' + displayName + ')';


    return (0, _hoistNonReactStatics2.default)(DragDropContextContainer, DecoratedComponent);
  };
}