Method _getFocusIndex

src/cdk/stepper/stepper.ts:541–543

Returns the index of the currently-focused step header.

()

  /** Returns the index of the currently-focused step header. */
  _getFocusIndex(): number | null {
    return this._keyManager ? this._keyManager.activeItemIndex : this._selectedIndex();
  }

  private _updateSelectedItemIndex(newIndex: number): void {
    const stepsArray = this.steps.toArray();