Function focusIndex

src/material/tabs/paginated-tab-header.ts:395–397

Tracks which element has focus; used for keyboard navigation

()

  /** Tracks which element has focus; used for keyboard navigation */
  get focusIndex(): number {
    return this._keyManager ? this._keyManager.activeItemIndex! : 0;
  }

  /** When the focus index is set, we must manually send focus to the correct label */
  set focusIndex(value: number) {