shift-shell/containments/homescreen/package/contents/ui/launcher/LauncherRepeater.qml

/*
 *  Copyright 2021 Marco Martin <mart@kde.org>
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  2.010-1301, USA.
 */

import QtQuick 2.14
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 2.0 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
import org.kde.plasma.private.nanoshell 2.0 as NanoShell
import org.kde.phone.homescreen 1.0
import org.kde.kirigami 2.14 as Kirigami

Repeater {
    id: launcherRepeater
    model: plasmoid.nativeInterface.applicationListModel
    property ContainmentLayoutManager.AppletsLayout appletsLayout
    property FavoriteStrip favoriteStrip
    property int cellWidth
    property int cellHeight

    delegate: HomeDelegate {
        id: delegate
        width: launcherRepeater.cellWidth
        height: Math.min(parent.height, launcherRepeater.cellHeight)
        appletsLayout: launcherRepeater.appletsLayout

        //just the normal inline binding in height: fails as it gets broken, make it explicit
        Binding {
            target: delegate
            property: "height"
            value: Math.min(parent.height, launcherRepeater.cellHeight)
        }
        parent: parentFromLocation
        reservedSpaceForLabel: metrics.height
        property Item parentFromLocation: {
            switch (model.applicationLocation) {
            case ApplicationListModel.Favorites:
                return favoriteStrip.flow;
            case ApplicationListModel.Desktop:
            default:
                return appletsLayout;
            }
        }
        Component.onCompleted: {
            if (model.applicationLocation === ApplicationListModel.Desktop) {
                appletsLayout.restoreItem(delegate);
            }
        }

        onLaunch: (x, y, icon, title) => {
            if (icon !== "") {
                print(delegate.iconItem)
                NanoShell.StartupFeedback.open(
                        icon,
                        title,
                        delegate.iconItem.Kirigami.ScenePosition.x + delegate.iconItem.width/2,
                        delegate.iconItem.Kirigami.ScenePosition.y + delegate.iconItem.height/2,
                        Math.min(delegate.iconItem.width, delegate.iconItem.height));
            }
            root.launched();
        }
        onParentFromLocationChanged: {
            if (!launcherDragManager.active && parent != parentFromLocation) {
                parent = parentFromLocation;
                if (model.applicationLocation === ApplicationListModel.Favorites) {
                    plasmoid.nativeInterface.stackBefore(delegate, parentFromLocation.children[index]);

                } else if (model.applicationLocation === ApplicationListModel.Grid) {
                    plasmoid.nativeInterface.stackBefore(delegate, parentFromLocation.children[Math.max(0, index - plasmoid.nativeInterface.applicationListModel.favoriteCount)]);
                }
            }
        }
    }
}