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/****************************************************************************
**
** Copyright (C) 2017 The Qt Company Ltd.
** Contact: http://www.qt.io/licensing/
**
** This file is part of the Qt Quick Controls 2 module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL3$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see http://www.qt.io/terms-conditions. For further
** information use the contact form at http://www.qt.io/contact-us.
**
** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 3 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPLv3 included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
** will be met: https://www.gnu.org/licenses/lgpl.html.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 2.0 or later as published by the Free
** Software Foundation and appearing in the file LICENSE.GPL included in
** the packaging of this file. Please review the following information to
** ensure the GNU General Public License version 2.0 requirements will be
** met: http://www.gnu.org/licenses/gpl-2.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.12
import QtQuick.Controls.Material 2.12

Rectangle {
    id: cursor

    color: parent.Material.accentColor
    width: 2
    visible: parent.activeFocus && !parent.readOnly && parent.selectionStart === parent.selectionEnd

    Connections {
        target: cursor.parent
        function onCursorPositionChanged() {
            // keep a moving cursor visible
            cursor.opacity = 1
            timer.restart()
        }
    }

    Timer {
        id: timer
        running: cursor.parent.activeFocus && !cursor.parent.readOnly && interval != 0
        repeat: true
        interval: Qt.styleHints.cursorFlashTime / 2
        onTriggered: cursor.opacity = !cursor.opacity ? 1 : 0
        // force the cursor visible when gaining focus
        onRunningChanged: cursor.opacity = 1
    }
}