// Copyright (C) 2017 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

import QtQuick
import QtQuick.Templates as T
import QtQuick.Controls.impl
import QtQuick.Controls.Material
import QtQuick.Controls.Material.impl

T.DelayButton {
    id: control

    implicitWidth: Math.max(implicitBackgroundWidth + leftInset + rightInset,
                            implicitContentWidth + leftPadding + rightPadding)
    implicitHeight: Math.max(implicitBackgroundHeight + topInset + bottomInset,
                             implicitContentHeight + topPadding + bottomPadding)

    topInset: 6
    bottomInset: 6
    padding: 12
    horizontalPadding: padding - 4

    Material.elevation: control.down ? 8 : 2

    transition: Transition {
        NumberAnimation {
            duration: control.delay * (control.pressed ? 1.0 - control.progress : 0.3 * control.progress)
        }
    }

    contentItem: Text {
        text: control.text
        font: control.font
        color: !control.enabled ? control.Material.hintTextColor : control.Material.foreground
        horizontalAlignment: Text.AlignHCenter
        verticalAlignment: Text.AlignVCenter
        elide: Text.ElideRight
    }

    // TODO: Add a proper ripple/ink effect for mouse/touch input and focus state
    background: Rectangle {
        implicitWidth: 64
        implicitHeight: control.Material.buttonHeight

        radius: 2
        color: control.Material.buttonColor(control.Material.theme, control.Material.background,
            control.Material.accent, control.enabled, false /*flat*/, false /*highlighted*/, false /*checked*/)

        PaddedRectangle {
            y: parent.height - 4
            width: parent.width
            height: 4
            radius: 2
            topPadding: -2
            clip: true
            color: control.checked && control.enabled ? control.Material.accentColor : control.Material.secondaryTextColor

            PaddedRectangle {
                width: parent.width * control.progress
                height: 4
                radius: 2
                topPadding: -2
                rightPadding: Math.max(-2, width - parent.width)
                clip: true
                color: control.Material.accentColor
            }
        }

        layer.enabled: control.enabled && color.a > 0 && !control.flat
        layer.effect: ElevationEffect {
            elevation: control.Material.elevation
        }

        Ripple {
            clipRadius: 2
            width: parent.width
            height: parent.height
            pressed: control.pressed
            anchor: control
            active: enabled && (control.down || control.visualFocus || control.hovered)
            color: control.Material.rippleColor
        }
    }
}