/****************************************************************************
**
** Copyright (C) 2015 The Qt Company Ltd.
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** This file is part of the Qt Labs Controls module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL3$
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** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 3 requirements
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** 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
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import QtQuick 2.6
import Qt.labs.templates 1.0 as T
import Qt.labs.controls.material 1.0

T.TextArea {
    id: control

    implicitWidth: Math.max(contentWidth + leftPadding + rightPadding,
                            background ? background.implicitWidth : 0,
                            placeholder.implicitWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(contentHeight + topPadding + bottomPadding,
                             background ? background.implicitHeight : 0,
                             placeholder.implicitHeight + topPadding + bottomPadding)

    padding: 6

    color: enabled ? Material.primaryTextColor : Material.hintTextColor
    selectionColor: Material.accentColor
    selectedTextColor: Material.primaryHighlightedTextColor
    cursorDelegate: Rectangle {
        id: cursor
        color: control.Material.accentColor
        width: 2
        visible: control.activeFocus && control.selectionStart === control.selectionEnd

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

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

    //! [placeholder]
    Text {
        id: placeholder
        x: control.leftPadding
        y: control.topPadding
        width: control.width - (control.leftPadding + control.rightPadding)
        height: control.height - (control.topPadding + control.bottomPadding)
        text: control.placeholderText
        font: control.font
        color: control.Material.hintTextColor
        horizontalAlignment: control.horizontalAlignment
        verticalAlignment: control.verticalAlignment
        elide: Text.ElideRight
        visible: !control.length && !control.preeditText && (!control.activeFocus || control.horizontalAlignment !== Qt.AlignHCenter)
    }
    //! [placeholder]

    //! [background]
    background: Rectangle {
        y: control.height - height
        implicitWidth: 120
        height: control.activeFocus ? 2 : 1
        color: control.activeFocus ? control.Material.accentColor : control.Material.hintTextColor
    }
    //! [background]
}