@augment-vir/web/dist/augments/elements/walk-active-element.js

A collection of augments, helpers types, functions, and classes only for web (frontend) JavaScript environments.

/* node:coverage disable */
/**
 * Get the currently active element and walks the shadow dom to find, if any, the truly active
 * element nested within the shadow dom.
 *
 * @category Web : Elements
 * @category Package : @augment-vir/web
 * @returns The depth that walking stopped at.
 * @package [`@augment-vir/web`](https://www.npmjs.com/package/@augment-vir/web)
 */
export function walkActiveElement(callback) {
    let depth = 0;
    let activeElement = document.activeElement || undefined;
    while (activeElement) {
        if (callback({
            depth,
            element: activeElement,
        })) {
            return depth;
        }
        activeElement = activeElement.shadowRoot?.activeElement || undefined;
        if (activeElement) {
            ++depth;
        }
    }
    return depth;
}