Function _prepareGroup

modular/sortable.complete.esm.js:969–1001

(options)

    return ret;
  },
  _prepareGroup = function _prepareGroup(options) {
    function toFn(value, pull) {
      return function (to, from, dragEl, evt) {
        var sameGroup = to.options.group.name && from.options.group.name && to.options.group.name === from.options.group.name;
        if (value == null && (pull || sameGroup)) {
          // Default pull value
          // Default pull and put value if same group
          return true;
        } else if (value == null || value === false) {
          return false;
        } else if (pull && value === 'clone') {
          return value;
        } else if (typeof value === 'function') {
          return toFn(value(to, from, dragEl, evt), pull)(to, from, dragEl, evt);
        } else {
          var otherGroup = (pull ? to : from).options.group.name;
          return value === true || typeof value === 'string' && value === otherGroup || value.join && value.indexOf(otherGroup) > -1;
        }
      };
    }
    var group = {};
    var originalGroup = options.group;
    if (!originalGroup || _typeof(originalGroup) != 'object') {
      originalGroup = {
        name: originalGroup
      };
    }
    group.name = originalGroup.name;
    group.checkPull = toFn(originalGroup.pull, true);
    group.checkPut = toFn(originalGroup.put);
    group.revertClone = originalGroup.revertClone;
    options.group = group;
  },
  _hideGhostForTarget = function _hideGhostForTarget() {
    if (!supportCssPointerEvents && ghostEl) {
      css(ghostEl, 'display', 'none');