Method _getDDElements

src/dd-gridstack.ts:204–211

@internal returns a list of DD elements, creating them on the fly by default unless option is to destroy or disable

(els: GridStackElement, opts?: DDOpts)

  /** @internal returns a list of DD elements, creating them on the fly by default unless option is to destroy or disable */
  protected _getDDElements(els: GridStackElement, opts?: DDOpts): DDElement[] {
    // don't force create if we're going to destroy it, unless it's a grid which is used as drop target for it's children
    const create = (els as GridHTMLElement).gridstack ||  opts !== 'destroy' && opts !== 'disable';
    const hosts = Utils.getElements(els) as DDElementHost[];
    if (!hosts.length) return [];
    const list = hosts.map(e => e.ddElement || (create ? DDElement.init(e) : null)).filter(d => d); // remove nulls
    return list;
  }
}