react-dnd-html5-backend/dist/cjs/NativeDragSources/NativeDragSource.js

HTML5 backend for React DnD

"use strict";

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

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 _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; }

var NativeDragSource = /*#__PURE__*/function () {
  function NativeDragSource(config) {
    _classCallCheck(this, NativeDragSource);

    _defineProperty(this, "item", void 0);

    _defineProperty(this, "config", void 0);

    this.config = config;
    this.item = {};
    this.initializeExposedProperties();
  }

  _createClass(NativeDragSource, [{
    key: "initializeExposedProperties",
    value: function initializeExposedProperties() {
      var _this = this;

      Object.keys(this.config.exposeProperties).forEach(function (property) {
        Object.defineProperty(_this.item, property, {
          configurable: true,
          enumerable: true,
          get: function get() {
            // eslint-disable-next-line no-console
            console.warn("Browser doesn't allow reading \"".concat(property, "\" until the drop event."));
            return null;
          }
        });
      });
    }
  }, {
    key: "loadDataTransfer",
    value: function loadDataTransfer(dataTransfer) {
      var _this2 = this;

      if (dataTransfer) {
        var newProperties = {};
        Object.keys(this.config.exposeProperties).forEach(function (property) {
          newProperties[property] = {
            value: _this2.config.exposeProperties[property](dataTransfer, _this2.config.matchesTypes),
            configurable: true,
            enumerable: true
          };
        });
        Object.defineProperties(this.item, newProperties);
      }
    }
  }, {
    key: "canDrag",
    value: function canDrag() {
      return true;
    }
  }, {
    key: "beginDrag",
    value: function beginDrag() {
      return this.item;
    }
  }, {
    key: "isDragging",
    value: function isDragging(monitor, handle) {
      return handle === monitor.getSourceId();
    }
  }, {
    key: "endDrag",
    value: function endDrag() {// empty
    }
  }]);

  return NativeDragSource;
}();

exports.NativeDragSource = NativeDragSource;