keyboardfocusindication.cpp
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keyboardfocusindication.cpp
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	/* keyboardfocusindication.cpp - Helper for extended keyboard focus indication.
	* Copyright (C) 2022 g10 Code GmbH
	*
	* Software engineering by Ingo Klöcker <dev@ingo-kloecker.de>
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of the GNU General Public License as
	* published by the Free Software Foundation; either version 2 of the
	* License, or (at your option) any later version.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, see <https://www.gnu.org/licenses/>.
	* SPDX-License-Identifier: GPL-2.0+
	*/

	#include "keyboardfocusindication.h"

	#include "focusframe.h"

	#include <QApplication>

	KeyboardFocusIndication::KeyboardFocusIndication(QObject *parent)
	: QObject{parent}
	{
	connect(qApp, &QApplication::focusChanged, this, &KeyboardFocusIndication::updateFocusFrame);
	}

	void KeyboardFocusIndication::updateFocusFrame(QWidget , QWidget focusWidget)
	{
	if (focusWidget && focusWidget->inherits("QLabel") && focusWidget->window()->testAttribute(Qt::WA_KeyboardFocusChange)) {
	if (!focusFrame) {
	focusFrame = new FocusFrame{focusWidget};
	}
	focusFrame->setWidget(focusWidget);
	} else if (focusFrame) {
	focusFrame->setWidget(nullptr);
	}
	}

	#include "keyboardfocusindication.moc"