@entando/ddtable/dist/js/TableDragLayer.js

react components used to render drag and drop tables in Entando projects

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.collect = exports.getItemStyles = 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 _react = require('react');

var _react2 = _interopRequireDefault(_react);

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

var _propTypes2 = _interopRequireDefault(_propTypes);

var _reactDnd = require('react-dnd');

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; }

var headerHeight = 26;

var layerStyles = {
  position: 'absolute',
  overflow: 'hidden',
  pointerEvents: 'none',
  zIndex: 100,
  left: 0,
  top: headerHeight,
  width: '100%',
  height: 'calc(100% - ' + headerHeight + 'px)'
};

var getItemStyles = exports.getItemStyles = function getItemStyles(props, rootEl) {
  var initialOffset = props.initialOffset,
      differenceOffset = props.differenceOffset;

  if (!initialOffset || !rootEl) {
    return {
      display: 'none'
    };
  }

  var x = 30;

  var parentTop = rootEl && rootEl.getBoundingClientRect().top;
  var y = initialOffset.y - parentTop + differenceOffset.y;

  var transform = 'translate(' + x + 'px, ' + y + 'px)';
  return {
    transform: transform,
    WebkitTransform: transform
  };
};

var collect = exports.collect = function collect(monitor) {
  return {
    item: monitor.getItem(),
    initialOffset: monitor.getInitialSourceClientOffset(),
    differenceOffset: monitor.getDifferenceFromInitialOffset(),
    isDragging: monitor.isDragging()
  };
};

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

  function TableDragLayer(props) {
    _classCallCheck(this, TableDragLayer);

    var _this = _possibleConstructorReturn(this, (TableDragLayer.__proto__ || Object.getPrototypeOf(TableDragLayer)).call(this, props));

    _this.rootEl = null;
    return _this;
  }

  _createClass(TableDragLayer, [{
    key: 'render',
    value: function render() {
      var _this2 = this;

      var _props = this.props,
          item = _props.item,
          isDragging = _props.isDragging,
          PreviewRenderer = _props.PreviewRenderer;


      if (!isDragging) {
        return null;
      }

      return _react2.default.createElement(
        'div',
        { className: 'TableDragLayer', style: layerStyles, ref: function ref(root) {
            _this2.rootEl = root;
          } },
        _react2.default.createElement(
          'div',
          { style: getItemStyles(this.props, this.rootEl) },
          _react2.default.createElement(PreviewRenderer, { rowData: item })
        )
      );
    }
  }]);

  return TableDragLayer;
}(_react.Component);

TableDragLayer.propTypes = {
  item: _propTypes2.default.shape({}),
  isDragging: _propTypes2.default.bool,
  PreviewRenderer: _propTypes2.default.func.isRequired
};

TableDragLayer.defaultProps = {
  item: null,
  isDragging: false
};

exports.default = (0, _reactDnd.DragLayer)(collect)(TableDragLayer);