nooLight/main.qml

import QtQuick 2.9
import QtQuick.Controls 2.2
import Qt.labs.settings 1.0

ApplicationWindow {
    id: window

    visible: true
    width: 640
    height: 480
    title: qsTr("Stack")

    Settings {
        id: settings

        property string serviceUrl: ""
    }

    LightsModel {
        id: lightsModel

        serviceUrl: settings.serviceUrl

        onError: stackView.showError(text)
    }

    header: ToolBar {
        contentHeight: 36

        MenuBackButton {
            id: menuButton

            anchors.verticalCenter: parent.verticalCenter
            anchors.left: parent.left
            anchors.leftMargin: 8

            width: 24
            height: 24

            state: stackView.depth > 1 ? "back" : "menu"

            onClicked: {
                drawer.open()
            }

            onBack: {
                stackView.pop()
            }
        }

        Label {
            text: stackView.currentItem.title
            anchors.centerIn: parent
        }
    }

    Drawer {
        id: drawer
        width: window.width * 0.66
        height: window.height

        Column {
            anchors.fill: parent

            Row {
                width: parent.width
                height: 100

                Image {
                    anchors.top: parent.top
                    anchors.bottom: parent.bottom
                    anchors.margins: 10
                    source: "lamp.png"
                }

                Label {
                    anchors.verticalCenter: parent.verticalCenter
                    font.pointSize: 20
                    text: qsTr("nooLight v0.1")
                }
            }

            ItemDelegate {
                text: qsTr("Service")
                width: parent.width
                onClicked: {
                    stackView.openPage("ServiceForm.qml")
                }
            }

            ItemDelegate {
                text: qsTr("Settings")
                width: parent.width
                onClicked: {
                    stackView.openPage("SettingsForm.qml")
                }
            }
        }
    }

    StackView {
        id: stackView
        initialItem: "HomeForm.qml"
        anchors.fill: parent

        function openPage(page) {
            if (depth > 1) {
                pop()
            }

            push(page)
            drawer.close()
        }

        function showError(text) {
            ToolTip.show(text, 1000)
        }
    }

    onClosing: {
        if (stackView.depth > 1) {
            close.accepted = false
            stackView.pop()
        }
    }
}