// 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.Material
import QtQuick.Controls.Material.impl
import QtQuick.Window

T.Menu {
    id: control

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

    margins: 0
    verticalPadding: 8

    transformOrigin: !cascade ? Item.Top : (mirrored ? Item.TopRight : Item.TopLeft)

    Material.elevation: 4
    Material.roundedScale: Material.ExtraSmallScale

    delegate: MenuItem { }

    enter: Transition {
        // grow_fade_in
        NumberAnimation { property: "scale"; from: 0.9; to: 1.0; easing.type: Easing.OutQuint; duration: 220 }
        NumberAnimation { property: "opacity"; from: 0.0; to: 1.0; easing.type: Easing.OutCubic; duration: 150 }
    }

    exit: Transition {
        // shrink_fade_out
        NumberAnimation { property: "scale"; from: 1.0; to: 0.9; easing.type: Easing.OutQuint; duration: 220 }
        NumberAnimation { property: "opacity"; from: 1.0; to: 0.0; easing.type: Easing.OutCubic; duration: 150 }
    }

    contentItem: ListView {
        implicitHeight: contentHeight

        model: control.contentModel
        interactive: Window.window
                     ? contentHeight + control.topPadding + control.bottomPadding > control.height
                     : false
        clip: true
        currentIndex: control.currentIndex

        ScrollIndicator.vertical: ScrollIndicator {}
    }

    background: Rectangle {
        implicitWidth: 200
        implicitHeight: control.Material.menuItemHeight
        // FullScale doesn't make sense for Menu.
        radius: control.Material.roundedScale
        color: control.Material.dialogColor

        layer.enabled: control.Material.elevation > 0
        layer.effect: RoundedElevationEffect {
            elevation: control.Material.elevation
            roundedScale: control.background.radius
        }
    }

    T.Overlay.modal: Rectangle {
        color: control.Material.backgroundDimColor
        Behavior on opacity { NumberAnimation { duration: 150 } }
    }

    T.Overlay.modeless: Rectangle {
        color: control.Material.backgroundDimColor
        Behavior on opacity { NumberAnimation { duration: 150 } }
    }
}