dmn-js-drd/lib/features/label-editing/LabelUtil.js

A decision requirements diagram view for dmn-js

import { is } from 'dmn-js-shared/lib/util/ModelUtil';
function getLabelAttr(semantic) {
  if (is(semantic, 'dmn:Decision') || is(semantic, 'dmn:BusinessKnowledgeModel') || is(semantic, 'dmn:InputData') || is(semantic, 'dmn:KnowledgeSource')) {
    return 'name';
  }
  if (is(semantic, 'dmn:TextAnnotation')) {
    return 'text';
  }
}
export function getLabel(element) {
  var semantic = element.businessObject,
    attr = getLabelAttr(semantic);
  if (attr) {
    return semantic[attr] || '';
  }
}
export function setLabel(element, text, isExternal) {
  var semantic = element.businessObject,
    attr = getLabelAttr(semantic);
  if (attr) {
    semantic[attr] = text;
  }

  // show external label if not empty
  if (isExternal) {
    element.hidden = !text;
  }
  return element;
}
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