shift-shell/containments/homescreen/package/contents/ui/main.qml

/*
 *  SPDX-FileCopyrightText: 2019 Marco Martin <mart@kde.org>
 *  SPDX-FileCopyrightText: 2021 Devin Lin <devin@kde.org>
 *
 *   SPDX-License-Identifier: LGPL-2.0-or-later
 */

import QtQuick 2.15
import QtQuick.Window 2.15
import QtQuick.Layouts 1.1

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.plasma.private.mobilehomescreencomponents 0.1 as HomeScreenComponents
import org.kde.plasma.private.mobileshell 1.0 as MobileShell

FocusScope {
    id: root
    width: 640
    height: 480

//BEGIN functions

    function recalculateMaxFavoriteCount() {
        if (!componentComplete) {
            return;
        }
        HomeScreenComponents.ApplicationListModel.maxFavoriteCount = Math.max(4, Math.floor(Math.min(width, height) / homescreen.homeScreenContents.appletsLayout.cellWidth));
    }

//END functions

//BEGIN API implementation
    Connections {
        target: MobileShell.HomeScreenControls
        
        property real lastRequestedPosition: 0
        
        function onResetHomeScreenPosition() {
            homescreen.flickablePages.scrollToPage(0);
            homescreen.appDrawer.close();
        }
        
        function onSnapHomeScreenPosition() {
            if (lastRequestedPosition < 0) {
                homescreen.appDrawer.open();
            } else {
                homescreen.appDrawer.close();
            }
        }
        
        function onRequestRelativeScroll(pos) {
            homescreen.appDrawer.offset -= pos.y;
            lastRequestedPosition = pos.y;
        }
        
        function onHideHomeScreen(animate) {
            if (animate) {
                opacityAnimation.to = 0;
                opacityAnimation.restart();
            } else {
                homescreen.opacity = 0;
            }
        }
        
        function onShowHomeScreen(animate) {
            if (animate) {
                opacityAnimation.to = 1;
                opacityAnimation.restart();
            } else {
                homescreen.opacity = 1;
            }
        }
    }
    
    Plasmoid.onScreenChanged: {
        if (plasmoid.screen == 0) {
            MobileShell.HomeScreenControls.homeScreen = root
            MobileShell.HomeScreenControls.homeScreenWindow = root.Window.window
        }
    }
    Window.onWindowChanged: {
        if (plasmoid.screen == 0) {
            MobileShell.HomeScreenControls.homeScreenWindow = root.Window.window
        }
    }

//END API implementation

    property bool componentComplete: false
    onWidthChanged: recalculateMaxFavoriteCount()
    onHeightChanged: recalculateMaxFavoriteCount()
    
    Component.onCompleted: {
        // ApplicationListModel doesn't have a plasmoid as is not the one that should be doing writing
        HomeScreenComponents.ApplicationListModel.loadApplications();
        HomeScreenComponents.FavoritesModel.applet = plasmoid;
        HomeScreenComponents.FavoritesModel.loadApplications();

        // set API variables
        if (plasmoid.screen == 0) {
            MobileShell.HomeScreenControls.homeScreen = root;
            MobileShell.HomeScreenControls.homeScreenWindow = root.Window.window;
        }
        componentComplete = true;
        recalculateMaxFavoriteCount()
        
        // ensure the gestures work immediately on load
        forceActiveFocus();
    }
    
    Plasmoid.onActivated: {
        console.log("Triggered!", plasmoid.nativeInterface.showingDesktop)
        homescreen.activate();
    }
    
    HomeScreen {
        id: homescreen
        anchors.fill: parent
     
        opacity: 1
        NumberAnimation on opacity {
            id: opacityAnimation
            duration: PlasmaCore.Units.longDuration
        }
    }
}