dmn-js-drd/lib/features/generate-di/DiGenerator.js

A decision requirements diagram view for dmn-js

import { forEach } from 'min-dash';
import { containsDi } from 'dmn-js-shared/lib/util/DiUtil';
import { is } from 'dmn-js-shared/lib/util/ModelUtil';

/**
 * Generates missing DI on import.
 *
 * @param {DrdFactory} drdFactory
 * @param {ElementFactory} elementFactory
 * @param {EventBus} eventBus
 */
export default function DiGenerator(drdFactory, elementFactory, eventBus, drdUpdater) {
  function createDi(definitions) {
    // retrieve or create dmnDI
    var dmnDI = definitions.dmnDI;
    if (!dmnDI) {
      dmnDI = drdFactory.create('dmndi:DMNDI');
      definitions.set('dmnDI', dmnDI);
    }
    var diagram = drdFactory.create('dmndi:DMNDiagram');
    dmnDI.set('diagrams', [diagram]);
    var index = 0;
    forEach(definitions.get('drgElement'), function (drgElement) {
      // generate DI for decisions only
      if (!is(drgElement, 'dmn:Decision')) {
        return;
      }
      var dimensions = elementFactory._getDefaultSize(drgElement);
      var di = drdFactory.createDiShape(drgElement, {
        x: 150 + index * 30,
        y: 150 + index * 30,
        width: dimensions.width,
        height: dimensions.height
      });
      drdUpdater.updateDiParent(di, diagram);
      index++;
    });
  }
  eventBus.on('import.start', ({
    definitions
  }) => {
    if (!containsDi(definitions)) {
      createDi(definitions);
    }
  });
}
DiGenerator.$inject = ['drdFactory', 'elementFactory', 'eventBus', 'drdUpdater'];
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