simplednd/build/SimpleDnD.js

A simple drag and drop component for React.js

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = void 0;

var _react = _interopRequireDefault(require("react"));

var _propTypes = _interopRequireDefault(require("prop-types"));

var _v = _interopRequireDefault(require("uuid/v1"));

require("./simple-dnd.css");

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

function _extends() { _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; }; return _extends.apply(this, arguments); }

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 _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }

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

function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }

function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }

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); }

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

  function SimpleDnD() {
    var _getPrototypeOf2;

    var _this;

    _classCallCheck(this, SimpleDnD);

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

    _this = _possibleConstructorReturn(this, (_getPrototypeOf2 = _getPrototypeOf(SimpleDnD)).call.apply(_getPrototypeOf2, [this].concat(args)));
    _this.state = {
      dragging: 0,
      draggable: false,
      salt: 'abc'
    };

    _this.onDragOver = function (index) {
      var _this$props = _this.props,
          someArray = _this$props.someArray,
          saveToState = _this$props.saveToState;
      var dragging = _this.state.dragging; // prevents unnessasary processing

      if (index === dragging) return; // create a temporary unmutable new array
      // (only using the first layer so spread operator is fine)

      var newArray = _toConsumableArray(someArray); // change positions of array items to match the drag


      var old = newArray[dragging];
      newArray[dragging] = newArray[index];
      newArray[index] = old; // set the current drag index to state and then save the new array back to the parent component

      _this.setState({
        dragging: index
      }, function () {
        return saveToState(newArray);
      });
    };

    return _this;
  }

  _createClass(SimpleDnD, [{
    key: "componentWillMount",
    value: function componentWillMount() {
      this.setState({
        salt: (0, _v.default)()
      });
    } // Event to be fired when an element is being dragged

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

      var _this$state = this.state,
          draggable = _this$state.draggable,
          salt = _this$state.salt;
      var _this$props2 = this.props,
          someArray = _this$props2.someArray,
          ArrayTemplate = _this$props2.ArrayTemplate,
          LastTileTemplate = _this$props2.LastTileTemplate;
      return _react.default.createElement("div", {
        className: "tiles ".concat(draggable ? 'draggable' : '')
      }, someArray.map(function (item, i) {
        return _react.default.createElement("div", {
          key: "simplednd-".concat(i, "-").concat(salt),
          className: "dnd-container-box",
          onDragOver: function onDragOver() {
            return _this2.onDragOver(i);
          }
        }, _react.default.createElement("div", {
          className: "tile",
          draggable: "true",
          onDragEnd: function onDragEnd() {
            return _this2.setState({
              draggable: false
            });
          },
          onDragStart: function onDragStart() {
            return _this2.setState({
              draggable: true,
              dragging: i
            });
          }
        }, _react.default.createElement("div", {
          className: "tile-inner"
        }, _react.default.createElement(ArrayTemplate, item))));
      }), LastTileTemplate !== null ? _react.default.createElement("div", {
        className: "dnd-container-box"
      }, _react.default.createElement("div", {
        className: "tile last-tile"
      }, _react.default.createElement("div", {
        className: "tile-inner last-tile"
      }, _react.default.createElement(LastTileTemplate, null)))) : null);
    }
  }]);

  return SimpleDnD;
}(_react.default.Component);

exports.default = SimpleDnD;
SimpleDnD.defaultProps = {
  LastTileTemplate: null,
  ArrayTemplate: function ArrayTemplate(_ref) {
    var item = _extends({}, _ref);

    return _react.default.createElement("div", {
      style: {
        height: 80,
        padding: 20,
        background: 'rgba(144,244,144,0.3)',
        border: '5px solid white'
      }
    }, _react.default.createElement("h4", {
      style: {
        color: '#000'
      }
    }, JSON.stringify(item)));
  }
};
SimpleDnD.propTypes = {
  ArrayTemplate: _propTypes.default.node,
  LastTileTemplate: _propTypes.default.node,
  someArray: _propTypes.default.array.isRequired,
  saveToState: _propTypes.default.func.isRequired
};