wix-style-react/dist/src/DragAndDrop/Draggable/components/DraggableSource.js

wix-style-react

'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 _dec, _class;

var _react = require('react');

var _react2 = _interopRequireDefault(_react);

var _reactDom = require('react-dom');

var _reactDom2 = _interopRequireDefault(_reactDom);

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

var _propTypes2 = _interopRequireDefault(_propTypes);

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

var _reactDndHtml5Backend = require('react-dnd-html5-backend');

var _noop = require('lodash/noop');

var _noop2 = _interopRequireDefault(_noop);

var _DragLayer = require('./DragLayer');

var _DragLayer2 = _interopRequireDefault(_DragLayer);

var _types = require('../types');

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; }

/* eslint-disable new-cap */

var source = {
  beginDrag: function beginDrag(_ref) {
    var id = _ref.id,
        index = _ref.index,
        containerId = _ref.containerId,
        groupName = _ref.groupName,
        item = _ref.item,
        onMoveOut = _ref.onMoveOut,
        onDragStart = _ref.onDragStart;

    if (onDragStart) {
      onDragStart({
        id: id,
        index: index,
        containerId: containerId,
        groupName: groupName,
        item: item
      });
    }
    /** we setup monitor.getItem() snapshot, so we will be always able to get info about item that we drag */
    return {
      id: id,
      index: index,
      containerId: containerId,
      groupName: groupName,
      originalIndex: index, // as index is mutable during d&d, we need another storage for original index
      originalItem: item,
      onMoveOut: onMoveOut,
      realTime: {
        onMoveOut: onMoveOut,
        containerId: containerId
      }
    };
  },
  endDrag: function endDrag(_ref2, monitor) {
    var id = _ref2.id,
        index = _ref2.index,
        containerId = _ref2.containerId,
        groupName = _ref2.groupName,
        item = _ref2.item,
        onDrop = _ref2.onDrop,
        onDragEnd = _ref2.onDragEnd;

    /** if drop was called, on drop target and drag is end, then we notify parent about this */
    if (onDragEnd) {
      onDragEnd({
        id: id,
        index: index,
        containerId: containerId,
        groupName: groupName,
        item: item
      });
    }

    if (monitor.getDropResult()) {
      var isSameGroup = groupName && monitor.getItem().groupName && groupName === monitor.getDropResult().groupName;
      var isSameContainer = containerId === monitor.getDropResult().containerId;

      if (isSameGroup || isSameContainer) {
        onDrop({
          payload: monitor.getItem().originalItem, // original item
          removedIndex: monitor.getItem().originalIndex, // original item index
          addedIndex: monitor.getItem().index, // new item index
          addedToContainerId: monitor.getDropResult().containerId, // new container for item
          removedFromContainerId: containerId // original item container
        });
      }
    }
  },
  isDragging: function isDragging(_ref3, monitor) {
    var id = _ref3.id,
        containerId = _ref3.containerId,
        groupName = _ref3.groupName;

    var item = monitor.getItem();
    var isSameGroup = groupName && item.groupName && groupName === item.groupName;
    var isSameContainer = containerId === item.containerId;
    return (isSameGroup || isSameContainer) && item.id === id;
  }
};

var collect = function collect(connect, monitor) {
  return {
    connectDragSource: connect.dragSource(),
    connectDragPreview: connect.dragPreview(),
    isDragging: monitor.isDragging()
  };
};

var DraggableSource = (_dec = (0, _reactDnd.DragSource)(_types.ItemTypes.DRAGGABLE, source, collect), _dec(_class = function (_React$Component) {
  _inherits(DraggableSource, _React$Component);

  function DraggableSource() {
    var _ref4;

    var _temp, _this, _ret;

    _classCallCheck(this, DraggableSource);

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

    return _ret = (_temp = (_this = _possibleConstructorReturn(this, (_ref4 = DraggableSource.__proto__ || Object.getPrototypeOf(DraggableSource)).call.apply(_ref4, [this].concat(args))), _this), _this.state = {
      offsetOfHandle: { x: 0, y: 0 }
    }, _this._renderPreview = function (_ref5) {
      var previewStyles = _ref5.previewStyles;
      var _this$props = _this.props,
          renderItem = _this$props.renderItem,
          id = _this$props.id,
          item = _this$props.item;

      return renderItem({
        id: id,
        item: item,
        previewStyles: previewStyles,
        isPreview: true,
        connectHandle: _noop2.default
      });
    }, _temp), _possibleConstructorReturn(_this, _ret);
  }

  _createClass(DraggableSource, [{
    key: 'componentDidMount',
    value: function componentDidMount() {
      if (this.props.connectDragPreview) {
        this.props.connectDragPreview((0, _reactDndHtml5Backend.getEmptyImage)(), {
          captureDraggingState: true
        });
      }
      this.updateDiff();
    }
  }, {
    key: 'componentDidUpdate',
    value: function componentDidUpdate(prevProps) {
      if (prevProps.id !== this.props.id || prevProps.containerId !== this.props.containerId) {
        this.updateDiff();
      }
    }
  }, {
    key: 'updateDiff',
    value: function updateDiff() {
      /* in case if we have handle, the drag will start in wrong position and we need to fix this */
      if (this.props.withHandle && this.handleNode) {
        this.setState({
          offsetOfHandle: {
            x: this.handleNode.getBoundingClientRect().x - this.rootNode.getBoundingClientRect().x,
            y: this.handleNode.getBoundingClientRect().y - this.rootNode.getBoundingClientRect().y
          }
        });
      }
    }
  }, {
    key: '_renderDraggableItem',
    value: function _renderDraggableItem() {
      var _this2 = this;

      var _props = this.props,
          isDragging = _props.isDragging,
          connectDragSource = _props.connectDragSource,
          withHandle = _props.withHandle,
          renderItem = _props.renderItem,
          id = _props.id,
          item = _props.item;

      if (withHandle) {
        return renderItem({
          id: id,
          item: item,
          isPlaceholder: isDragging,
          connectHandle: function connectHandle(handle) {
            var handleWithRef = _react2.default.cloneElement(handle, {
              ref: function ref(node) {
                return _this2.handleNode = _reactDom2.default.findDOMNode(node);
              }
            });
            return connectDragSource(handleWithRef);
          }
        });
      }

      return connectDragSource(renderItem({
        id: id,
        item: item,
        isPlaceholder: isDragging,
        connectHandle: _noop2.default
      }));
    }
  }, {
    key: '_renderPreviewItem',
    value: function _renderPreviewItem() {
      var _props2 = this.props,
          id = _props2.id,
          usePortal = _props2.usePortal;

      return _react2.default.createElement(_DragLayer2.default, {
        offsetOfHandle: this.state.offsetOfHandle,
        usePortal: usePortal,
        renderPreview: this._renderPreview,
        id: id,
        draggedType: _types.ItemTypes.DRAGGABLE
      });
    }
  }, {
    key: 'render',
    value: function render() {
      var _this3 = this;

      var connectDragSource = this.props.connectDragSource;

      return connectDragSource ? _react2.default.createElement(
        'div',
        { ref: function ref(node) {
            return _this3.rootNode = node;
          } },
        this._renderDraggableItem(),
        this._renderPreviewItem()
      ) : null;
    }
  }]);

  return DraggableSource;
}(_react2.default.Component)) || _class);
exports.default = DraggableSource;


DraggableSource.propTypes = {
  isDragging: _propTypes2.default.bool, // from react-dnd
  connectDragSource: _propTypes2.default.func, // from react-dnd
  connectDragPreview: _propTypes2.default.func, // from react-dnd

  usePortal: _propTypes2.default.bool,
  groupName: _propTypes2.default.string,
  containerId: _propTypes2.default.oneOfType([_propTypes2.default.number, _propTypes2.default.string]),
  renderItem: _propTypes2.default.func,
  index: _propTypes2.default.number,
  id: _propTypes2.default.oneOfType([_propTypes2.default.number, _propTypes2.default.string]),
  item: _propTypes2.default.object,
  withHandle: _propTypes2.default.bool,
  onDrop: _propTypes2.default.func,
  onMoveOut: _propTypes2.default.func,
  onDragStart: _propTypes2.default.func,
  onDragEnd: _propTypes2.default.func
};