Function isDelegableContainer

mods/spatial-navigation-polyfill.js:827–829

* Decide whether an element is delegable container or not. * NOTE: THIS IS NON-NORMATIVE API. * @function isDelegableContainer * @param element {Node} element * @returns {boolean}

(element)

   * @returns {boolean}
   */
  function isDelegableContainer(element) {
    return readCssVar(element, 'spatial-navigation-contain') === 'delegable';
  }

  /**
   * Decide whether an element is a scrollable container or not.