Function createPortsData

packages/joint-react/src/data/create-ports-data.ts:32–63

()

 * @category Port
 */
export function createPortsData() {
  const data = {
    ports: new Map<string, SVGElement>(),
  };

  return {
    set(cellId: dia.Cell.ID, portElementsCache: Record<string, PortElementsCacheEntry>) {
      for (const portId in portElementsCache) {
        const { portSelectors } = portElementsCache[portId];
        const portalElement = portSelectors[PORTAL_SELECTOR];
        if (!portalElement) {
          throw new Error(
            `Portal element not found for port id: ${portId} via ${PORTAL_SELECTOR} selector`
          );
        }
        const element = Array.isArray(portalElement) ? portalElement[0] : portalElement;
        const id = getId(cellId, portId);
        if (util.isEqual(data.ports.get(id), element)) {
          continue;
        }
        data.ports.set(id, element);
      }
    },
    get(cellId: dia.Cell.ID, portId: string) {
      const id = getId(cellId, portId);
      return data.ports.get(id);
    },
    clear() {
      data.ports.clear();
    },
  };
}