dmn-js-drd/lib/features/modeling/cmd/UpdateModdlePropertiesHandler.js

A decision requirements diagram view for dmn-js

import { reduce, keys, forEach } from 'min-dash';
export default function UpdateModdlePropertiesHandler(elementRegistry) {
  this._elementRegistry = elementRegistry;
}
UpdateModdlePropertiesHandler.$inject = ['elementRegistry'];
UpdateModdlePropertiesHandler.prototype.execute = function (context) {
  var element = context.element,
    moddleElement = context.moddleElement,
    properties = context.properties;
  if (!moddleElement) {
    throw new Error('<moddleElement> required');
  }

  // TODO(nikku): we need to ensure that ID properties
  // are properly registered / unregistered via
  // this._moddle.ids.assigned(id)
  var changed = context.changed || [element];
  var oldProperties = context.oldProperties || getModdleProperties(moddleElement, keys(properties));
  setModdleProperties(moddleElement, properties);
  context.oldProperties = oldProperties;
  context.changed = changed;
  return changed;
};
UpdateModdlePropertiesHandler.prototype.revert = function (context) {
  var oldProperties = context.oldProperties,
    moddleElement = context.moddleElement,
    changed = context.changed;
  setModdleProperties(moddleElement, oldProperties);
  return changed;
};

// helpers /////////////////

function getModdleProperties(moddleElement, propertyNames) {
  return reduce(propertyNames, function (result, key) {
    result[key] = moddleElement.get(key);
    return result;
  }, {});
}
function setModdleProperties(moddleElement, properties) {
  forEach(properties, function (value, key) {
    moddleElement.set(key, value);
  });
}
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