main.qml

import QtQuick 2.6
import QtQuick.Window 2.2
import QtQuick.Scene3D 2.12
import QtWayland.Compositor 1.3

WaylandCompositor {
    // The output defines the screen.
    WaylandOutput {
        sizeFollowsWindow: true
        scaleFactor: 1
        window: Window {
            width: 1600
            height: 900
            visible: true

            Scene3D {
                anchors.fill: parent
                entity: sceneRoot
                cameraAspectRatioMode: Scene3D.AutomaticAspectRatio
            }

            MainScene {
                id: sceneRoot
            }
        }
    }
    WlShell {
        onWlShellSurfaceCreated:
            shellSurfaceCreated(shellSurface, "wl");
    }
    XdgShellV6 {
        onToplevelCreated:
            shellSurfaceCreated(xdgSurface, "xdgv6");
    }
    XdgShell {
        onToplevelCreated:
            shellSurfaceCreated(xdgSurface, "xdg");
    }
    function shellSurfaceCreated (shellSurf, shellSurfType) {
        console.log("Creating surface...");
        var panelComponent = Qt.createComponent("Panel.qml");

        var panelInstance = panelComponent.createObject(sceneRoot, {
            "shellSurf": shellSurf,
            "shellSurfType": shellSurfType
        });
        console.log(shellSurfType + " surface Created");
    }

    function resizeShellSurface(shellSurf, shellSurfType, size) {
        switch(shellSurfType) {
        case "wl":
            shellSurf.sendConfigure(size, 0);
            break;
        case "xdg":
        case "xdgv6":
            shellSurf.sendFullscreen(size);
            break;
        }
    }
}