Method _setTabIndexValue

packages/main/src/SplitButton.ts:379–385

(innerButtonPressed?: boolean)

	}

	_setTabIndexValue(innerButtonPressed?: boolean) {
		this._tabIndex = this.disabled ? -1 : 0;

		if (this._tabIndex === -1 && innerButtonPressed) {
			this._tabIndex = 0;
		}
	}

	_onArrowButtonActiveStateChange(e: CustomEvent) {
		if (this.activeArrowButton) {