/*
 *  SPDX-FileCopyrightText: 2019 Marco Martin <mart@kde.org>
 *
 *  SPDX-License-Identifier: GPL-2.0-or-later
 */

import QtQuick 2.4
import QtQuick.Layouts 1.1
import QtQuick.Controls 2.3 as Controls
import QtGraphicalEffects 1.6

import org.kde.plasma.plasmoid 2.0
import org.kde.plasma.core 2.0 as PlasmaCore
import org.kde.plasma.components 3.0 as PlasmaComponents
import org.kde.kquickcontrolsaddons 2.0

import org.kde.plasma.private.containmentlayoutmanager 1.0 as ContainmentLayoutManager 
import org.kde.plasma.private.mobileshell 1.0 as MobileShell

MouseArea {
    id: delegate
    width: GridView.view.cellWidth
    height: GridView.view.cellHeight

    property int reservedSpaceForLabel
    property alias iconItem: icon

    signal launch(int x, int y, var source, string title, string storageId)
    signal dragStarted(string imageSource, int x, int y, string mimeData)

    onPressAndHold: {
        delegate.grabToImage(function(result) {
            delegate.Drag.imageSource = result.url
            dragStarted(result.url, width/2, height/2, model.applicationStorageId)
        })
    }

    propagateComposedEvents: true
    onClicked: {
        mouse.accepted = true
        if (model.applicationRunning) {
            delegate.launch(0, 0, "", model.applicationName, model.applicationStorageId);
        } else {
            delegate.launch(delegate.x + (PlasmaCore.Units.smallSpacing * 2), delegate.y + (PlasmaCore.Units.smallSpacing * 2), icon.source, model.applicationName, model.applicationStorageId);
        }
    }

    //preventStealing: true
    ColumnLayout {
        anchors {
            fill: parent
            leftMargin: PlasmaCore.Units.smallSpacing * 2
            topMargin: PlasmaCore.Units.smallSpacing * 2
            rightMargin: PlasmaCore.Units.smallSpacing * 2
            bottomMargin: PlasmaCore.Units.smallSpacing * 2
        }
        spacing: 0

        PlasmaCore.IconItem {
            id: icon

            Layout.alignment: Qt.AlignHCenter | Qt.AlignTop
            Layout.fillWidth: true
            Layout.minimumHeight: parent.height - delegate.reservedSpaceForLabel
            Layout.preferredHeight: Layout.minimumHeight

            usesPlasmaTheme: false
            source: model.applicationIcon

            Rectangle {
                anchors {
                    horizontalCenter: parent.horizontalCenter
                    bottom: parent.bottom
                }
                visible: model.applicationRunning
                radius: width
                width: PlasmaCore.Units.smallSpacing
                height: width
                color: PlasmaCore.Theme.highlightColor
            }
        }

        PlasmaComponents.Label {
            id: label
            visible: text.length > 0

            Layout.fillWidth: true
            Layout.preferredHeight: delegate.reservedSpaceForLabel
            wrapMode: Text.WordWrap
            Layout.leftMargin: -parent.anchors.leftMargin + PlasmaCore.Units.smallSpacing
            Layout.rightMargin: -parent.anchors.rightMargin + PlasmaCore.Units.smallSpacing
            horizontalAlignment: Text.AlignHCenter
            verticalAlignment: Text.AlignTop
            maximumLineCount: 2
            elide: Text.ElideRight

            text:  model.applicationName

            //FIXME: export smallestReadableFont
            font.pointSize: PlasmaCore.Theme.defaultFont.pointSize * 0.9
            color: "white"
        }
    }
}