Method _onHeaderFocusin

packages/main/src/TabContainer.ts:485–491

(e: FocusEvent)

	}

	_onHeaderFocusin(e: FocusEvent) {
		const tab = getTabInStrip(e.target as HTMLElement);

		if (tab) {
			this._itemNavigation.setCurrentItem(tab.realTabReference);
		}
	}

	_onDragStart(e: DragEvent) {
		if (!e.dataTransfer || !(e.target instanceof HTMLElement)) {