ch.bfh.blue.UI.HomeView.java Source code

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Here is the source code for ch.bfh.blue.UI.HomeView.java

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/*
 * Copyright (c) 2016 Berner Fachhochschule, Switzerland.
 *
 * Project Smart Reservation System.
 *
 * Distributable under GPL license. See terms of license at gnu.org.
 */
package ch.bfh.blue.UI;

import com.vaadin.navigator.Navigator;
import com.vaadin.navigator.View;
import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;
import com.vaadin.ui.Button;
import com.vaadin.ui.Component;
import com.vaadin.ui.FormLayout;
import com.vaadin.ui.Label;

import ch.bfh.blue.service.Controller;

/**
 * This is the main page which is also set as default in the navigator
 *
 * @author SRS-Team
 *
 */

public class HomeView extends FormLayout implements View {

    /**
     *
     */
    private static final long serialVersionUID = 1L;

    private Navigator navigator;
    private Controller controller;

    // Labels and Components
    private final Label label = new Label();
    private final Label lLabel = new Label();
    private final Label rLabel = new Label();

    // Buttons
    private final Button loginBtn = new Button("Login here");
    private final Button registerBtn = new Button("Register here");
    private final Button initBtn = new Button("Take default Database");

    public HomeView(Controller contr) {
        controller = contr;
        for (Component c : new Component[] { label, lLabel, loginBtn, rLabel, registerBtn, initBtn })
            this.addComponent(c);
        configureUI();
        configureButtons();
    }

    // configure all the settings for the different UI components
    private void configureUI() {
        label.setValue("Welcome to SRS!");
        label.setStyleName("mainCaption");
        lLabel.setValue("To use the SRS, please login.");
        rLabel.setValue("New here?\n Register a new Account.");
        initBtn.setDisableOnClick(true);
    }

    // configure handlers and settings for the buttons
    private void configureButtons() {
        loginBtn.addClickListener(e -> {
            navigator.navigateTo("login");
        });

        registerBtn.addClickListener(e -> {
            navigator.navigateTo("register");
        });

        initBtn.addClickListener(e -> {
            if ((Boolean) getSession().getAttribute("databaseLock") == true) {
                createDemoPersons();
                createDemoRooms();
                getSession().setAttribute("databaseLock", false);
            }
        });
    }

    /**
     * adds a few rooms to the db to test the functionality
     */
    private void createDemoRooms() {
        controller.createSpace("aula", 1);
        controller.createSpace("garage", 2);
        controller.createSpace("tennisplatz", 3);
    }

    /**
     * creates a few persons with username and pw to test the functionality
     */
    private void createDemoPersons() {
        controller.createPerson("one@mail", "one", "1");
        controller.createPerson("two@mail", "two", "2");
        controller.createPerson("three@mail", "three", "3");
    }

    @Override
    public void enter(ViewChangeEvent event) {
        navigator = event.getNavigator();
    }

}