bpmn-js/lib/features/modeling/cmd/UpdateSemanticParentHandler.js

/**
 * @typedef {import('diagram-js/lib/command/CommandHandler').default} CommandHandler
 *
 * @typedef {import('../BpmnUpdater').default} BpmnUpdater
 */

/**
 * @implements {CommandHandler}
 *
 * @param {BpmnUpdater} bpmnUpdater
 */
export default function UpdateSemanticParentHandler(bpmnUpdater) {
  this._bpmnUpdater = bpmnUpdater;
}

UpdateSemanticParentHandler.$inject = [ 'bpmnUpdater' ];


UpdateSemanticParentHandler.prototype.execute = function(context) {
  var dataStoreBo = context.dataStoreBo,
      dataStoreDi = context.dataStoreDi,
      newSemanticParent = context.newSemanticParent,
      newDiParent = context.newDiParent;

  context.oldSemanticParent = dataStoreBo.$parent;
  context.oldDiParent = dataStoreDi.$parent;

  // update semantic parent
  this._bpmnUpdater.updateSemanticParent(dataStoreBo, newSemanticParent);

  // update DI parent
  this._bpmnUpdater.updateDiParent(dataStoreDi, newDiParent);

  return [];
};

UpdateSemanticParentHandler.prototype.revert = function(context) {
  var dataStoreBo = context.dataStoreBo,
      dataStoreDi = context.dataStoreDi,
      oldSemanticParent = context.oldSemanticParent,
      oldDiParent = context.oldDiParent;

  // update semantic parent
  this._bpmnUpdater.updateSemanticParent(dataStoreBo, oldSemanticParent);

  // update DI parent
  this._bpmnUpdater.updateDiParent(dataStoreDi, oldDiParent);

  return [];
};