src/main/java/eu/etaxonomy/cdm/vaadin/view/LoginViewBean.java

   1 /**
   2 * Copyright (C) 2017 EDIT
   3 * European Distributed Institute of Taxonomy
   4 * http://www.e-taxonomy.eu
   5 *
   6 * The contents of this file are subject to the Mozilla Public License Version 1.1
   7 * See LICENSE.TXT at the top of this package for the full license terms.
   8 */
   9 package eu.etaxonomy.cdm.vaadin.view;
  10
  11 import org.vaadin.spring.events.EventScope;
  12
  13 import com.vaadin.data.validator.StringLengthValidator;
  14 import com.vaadin.event.ShortcutAction.KeyCode;
  15 import com.vaadin.navigator.View;
  16 import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;
  17 import com.vaadin.spring.annotation.SpringView;
  18 import com.vaadin.ui.Alignment;
  19 import com.vaadin.ui.Button.ClickEvent;
  20 import com.vaadin.ui.VerticalLayout;
  21 import com.vaadin.ui.themes.ValoTheme;
  22
  23 import eu.etaxonomy.cdm.vaadin.component.LoginDialog;
  24 import eu.etaxonomy.cdm.vaadin.event.AuthenticationAttemptEvent;
  25 import eu.etaxonomy.cdm.vaadin.event.PasswordRevoveryEvent;
  26 import eu.etaxonomy.cdm.vaadin.event.RegisterNewUserEvent;
  27 import eu.etaxonomy.vaadin.mvp.AbstractView;
  28 import eu.etaxonomy.vaadin.ui.navigation.NavigationEvent;
  29
  30 /**
  31  * @author a.kohlbecker
  32  * @since Apr 25, 2017
  33  *
  34  */
  35 @SpringView(name=LoginViewBean.NAME)
  36 public class LoginViewBean  extends AbstractView<LoginPresenter> implements LoginView, View  {
  37
  38     private static final long serialVersionUID = 8527714663738364972L;
  39
  40     public static final String NAME = "login";
  41
  42     private LoginDialog loginDialog = new LoginDialog();
  43
  44     public LoginViewBean() {
  45         super();
  46     }
  47
  48     @Override
  49     protected void initContent() {
  50         VerticalLayout root = new VerticalLayout();
  51         root.setSizeFull();
  52         root.addComponent(loginDialog);
  53         root.setMargin(true);
  54         root.setComponentAlignment(loginDialog, Alignment.MIDDLE_CENTER);
  55         setCompositionRoot(root);
  56
  57         loginDialog.getLoginButton().addClickListener(e -> handleLoginClick(e));
  58         loginDialog.getLoginButton().setClickShortcut(KeyCode.ENTER);
  59         loginDialog.getRegisterButton().addClickListener(e -> getViewEventBus().publish(EventScope.UI, this, new RegisterNewUserEvent(e)));
  60         loginDialog.getSendOnetimeLogin().addClickListener(e -> {
  61             getViewEventBus().publish(this, new PasswordRevoveryEvent(e));
  62         });
  63         // NOTE: null viewName will be replaced by the default view name in NavigationManagerBean
  64         loginDialog.getCancelLoginButton().addClickListener(e -> getViewEventBus().publish(EventScope.UI, this, new NavigationEvent(null)));
  65
  66         loginDialog.getCancelRegistrationButton().addClickListener(e -> getViewEventBus().publish(EventScope.UI, this, new NavigationEvent(null)));
  67
  68         StringLengthValidator nameOrEmailValidator = new StringLengthValidator("Please enter your username or email address.");
  69         loginDialog.getUserNameOrEmail().addValidator(nameOrEmailValidator);
  70         loginDialog.getUserNameOrEmail().addTextChangeListener(e -> {
  71             String text = e.getText();
  72             logger.debug("text: " + text);
  73             loginDialog.getSendOnetimeLogin().setEnabled(text != null && text.length() > 1);
  74         });
  75     }
  76
  77     private void handleLoginClick(ClickEvent e) {
  78         getViewEventBus().publish(EventScope.UI, this, new AuthenticationAttemptEvent(e, loginDialog.getUserName().getValue()));
  79     }
  80
  81     @Override
  82     public LoginDialog getLoginDialog(){
  83         return loginDialog;
  84     }
  85
  86     @Override
  87     // TODO pull up to AbstractView and let AbstractView implement View?
  88     public void enter(ViewChangeEvent event) {
  89         getPresenter().onViewEnter();
  90     }
  91
  92     @Override
  93     public void showErrorMessage(String text){
  94         loginDialog.getLoginMessageLabel().setVisible(true);
  95         loginDialog.getLoginMessageLabel().setStyleName(ValoTheme.BUTTON_TINY + " " +  ValoTheme.LABEL_FAILURE);
  96         loginDialog.getLoginMessageLabel().setValue(text);
  97     }
  98
  99     @Override
 100     public void clearMessage(){
 101         loginDialog.getLoginMessageLabel().setVisible(false);
 102         loginDialog.getLoginMessageLabel().setStyleName("");
 103         loginDialog.getLoginMessageLabel().setValue("");
 104     }
 105 }