@ui-schema/kit-dnd/calcIntentDataKeys/calcIntentDataKeys.js

Drag and Drop Tools for (not only) UI-Schema

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.calcIntentDataKeys = void 0;
var _KitDnd = require("@ui-schema/kit-dnd/KitDnd");
var calcIntentDataKeys = exports.calcIntentDataKeys = function calcIntentDataKeys(_ref) {
  var toIndex = _ref.toIndex,
    toDataKeys = _ref.toDataKeys,
    fromIndex = _ref.fromIndex,
    fromDataKeys = _ref.fromDataKeys;
  if (fromDataKeys.size < toDataKeys.size) {
    var toRelativeLeadingKeys = toDataKeys.slice(0, fromDataKeys.size + 1);
    var toIndexRelativeFirst = toRelativeLeadingKeys.last();
    var willBeParent = toRelativeLeadingKeys.equals(fromDataKeys.push(fromIndex));
    var _wasBeforeRelative = typeof toIndexRelativeFirst === 'number' && toRelativeLeadingKeys.splice(-1, 1).equals(fromDataKeys) && fromIndex < toIndexRelativeFirst;
    return {
      wasBeforeRelative: _wasBeforeRelative,
      willBeParent: willBeParent,
      level: _KitDnd.DndIntents.down
    };
  }
  if (fromDataKeys.size > toDataKeys.size) {
    var _willBeParent = fromDataKeys.slice(0, (toDataKeys.size || 0) + 1).equals(toDataKeys.push(toIndex));
    var willBeDirectRoot = fromDataKeys.equals(toDataKeys.push(toIndex));
    return {
      isParent: _willBeParent && fromDataKeys.size - toDataKeys.size === 1,
      willBeParent: _willBeParent,
      willBeDirectRoot: willBeDirectRoot,
      level: _KitDnd.DndIntents.up
    };
  }
  var hasSameDirectRoot = fromDataKeys.equals(toDataKeys);
  if (!hasSameDirectRoot) {
    return {
      level: _KitDnd.DndIntents["switch"]
    };
  }
  if (fromIndex === toIndex) {
    return undefined;
  }
  var wasBeforeRelative = fromIndex < toIndex;
  return {
    wasBeforeRelative: wasBeforeRelative,
    level: _KitDnd.DndIntents.same,
    container: wasBeforeRelative ? _KitDnd.DndIntents.down : _KitDnd.DndIntents.up
  };
};