How to switch to new window after login in.

Antek832

Hello, I want to create simple app where after typing username: "user" and password: "12345" login window will be closed and new windows with actuall content will apear. My first idea was connect signal emmited by button with C++ class that will validate data and later destroy actual window and create new one from another QML file. This approach demands from me interacting with C++. Can I deal with it using only QML or at least constrain C++ usage? For example: login window won't be destroyed but it's content will be replaced. Below is what I have already done.

QML code

import QtQuick
import QtQuick.Controls
import QtQuick.Layouts

Window {
    width: 240
    height: 380
    visible: true
    title: qsTr("login window")

    ColumnLayout{
        anchors.centerIn: parent
        spacing: 15

        Text{

            text: "Username"
            Layout.fillWidth: true
        }
        TextField{
            id: usernameTextField
            placeholderText: "type username"
            Layout.fillWidth: true
        }
        Text{
            text: "Password"
            Layout.fillWidth: true
        }
        TextField{
            id: passwordTextField
            placeholderText: "type password"
            echoMode: TextInput.Password
            Layout.fillWidth: true
        }
        Button{
            objectName: "loginButton"
            signal sendLoginData(string username, string password)
            text: "Login in"
            Layout.fillWidth: true
            onClicked: sendLoginData(usernameTextField.text, passwordTextField.text)
        }
    }
}

main.cpp

#include <QGuiApplication>
#include <QQmlApplicationEngine>
#include <QQuickView>
#include <QQuickItem>
#include <QString>
#include <QUrl>

#include "loginlogic.h"

int main(int argc, char *argv[])
{
    QGuiApplication app(argc, argv);

    QQmlApplicationEngine engine;

    loginLogic logger;
    QQmlComponent component(&engine, QUrl(QStringLiteral("qrc:/simpleLoginInSystem/main.qml")));
    QObject *sender = component.create();
    sender = sender->findChild<QObject*>("loginButton");

    QObject::connect(sender, SIGNAL(sendLoginData(QString, QString)), &logger, SLOT(getUsernameAndData(QString, 
          QString)));

    return app.exec();
}

Rusticus

You could make the original windows invisible until you have a valid login and with start-up you just load another pop up with the login system