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.apache.commons.lang3.StringUtils;
  12 import org.vaadin.spring.events.EventScope;
  13
  14 import com.vaadin.data.validator.EmailValidator;
  15 import com.vaadin.data.validator.StringLengthValidator;
  16 import com.vaadin.event.ShortcutAction.KeyCode;
  17 import com.vaadin.navigator.View;
  18 import com.vaadin.navigator.ViewChangeListener.ViewChangeEvent;
  19 import com.vaadin.spring.annotation.SpringView;
  20 import com.vaadin.ui.Alignment;
  21 import com.vaadin.ui.Button.ClickEvent;
  22 import com.vaadin.ui.VerticalLayout;
  23 import com.vaadin.ui.themes.ValoTheme;
  24
  25 import eu.etaxonomy.cdm.vaadin.component.LoginDialog;
  26 import eu.etaxonomy.cdm.vaadin.event.AuthenticationAttemptEvent;
  27 import eu.etaxonomy.cdm.vaadin.event.UserAccountEvent;
  28 import eu.etaxonomy.vaadin.mvp.AbstractView;
  29 import eu.etaxonomy.vaadin.ui.navigation.NavigationEvent;
  30
  31 /**
  32  * @author a.kohlbecker
  33  * @since Apr 25, 2017
  34  *
  35  */
  36 @SpringView(name=LoginViewBean.NAME)
  37 public class LoginViewBean  extends AbstractView<LoginPresenter> implements LoginView, View  {
  38
  39     private static final long serialVersionUID = 8527714663738364972L;
  40
  41     public static final String NAME = "login";
  42
  43     private LoginDialog loginDialog = new LoginDialog();
  44
  45     public LoginViewBean() {
  46         super();
  47     }
  48
  49     @Override
  50     protected void initContent() {
  51         VerticalLayout root = new VerticalLayout();
  52         root.setSizeFull();
  53         root.addComponent(loginDialog);
  54         root.setMargin(true);
  55         root.setComponentAlignment(loginDialog, Alignment.MIDDLE_CENTER);
  56         setCompositionRoot(root);
  57
  58         // --- login tab
  59         loginDialog.getLoginButton().addClickListener(e -> handleLoginClick(e));
  60         loginDialog.getLoginButton().setClickShortcut(KeyCode.ENTER);
  61         // NOTE: null viewName will be replaced by the default view name in NavigationManagerBean
  62         loginDialog.getCancelLoginButton().addClickListener(e -> getViewEventBus().publish(EventScope.UI, this, new NavigationEvent(null)));
  63
  64         // --- Register tab
  65         loginDialog.getRegisterButton().addClickListener(e -> {
  66                 getViewEventBus().publish(this, new UserAccountEvent(UserAccountEvent.UserAccountAction.REGISTER_ACCOUNT, e));
  67             }
  68         );
  69         loginDialog.getCancelRegistrationButton().addClickListener(e -> getViewEventBus().publish(EventScope.UI, this, new NavigationEvent(null)));
  70         loginDialog.getEmail().addValidator(new EmailValidator("The enterd E-mail address is not valid."));
  71         loginDialog.getEmail().addValueChangeListener(e -> updateRegisterButtonState());
  72         // further validators added in the presenter
  73
  74         // --- Password reset tab
  75         StringLengthValidator nameOrEmailValidator = new StringLengthValidator("Please enter your username or email address.");
  76         loginDialog.getUserNameOrEmail().addValidator(nameOrEmailValidator);
  77         loginDialog.getUserNameOrEmail().addTextChangeListener(e -> {
  78             String text = e.getText();
  79             loginDialog.getSendOnetimeLogin().setEnabled(text != null && text.length() > 1);
  80         });
  81         loginDialog.getSendOnetimeLogin().addClickListener(e -> {
  82             getViewEventBus().publish(this, new UserAccountEvent(UserAccountEvent.UserAccountAction.REQUEST_PASSWORD_RESET,e));
  83         });
  84     }
  85
  86     private void updateRegisterButtonState() {
  87         loginDialog.getRegisterButton().setEnabled(StringUtils.isNoneBlank(loginDialog.getEmail().getValue()) && loginDialog.getEmail().getErrorMessage() == null);
  88     }
  89
  90     private void handleLoginClick(ClickEvent e) {
  91         getViewEventBus().publish(EventScope.UI, this, new AuthenticationAttemptEvent(e, loginDialog.getUserName().getValue()));
  92     }
  93
  94     @Override
  95     public LoginDialog getLoginDialog(){
  96         return loginDialog;
  97     }
  98
  99     @Override
 100     // TODO pull up to AbstractView and let AbstractView implement View?
 101     public void enter(ViewChangeEvent event) {
 102         getPresenter().onViewEnter();
 103     }
 104
 105     @Override
 106     public void showErrorMessage(String text){
 107         loginDialog.getLoginMessageLabel().setVisible(true);
 108         loginDialog.getLoginMessageLabel().setStyleName(ValoTheme.BUTTON_TINY + " " +  ValoTheme.LABEL_FAILURE);
 109         loginDialog.getLoginMessageLabel().setValue(text);
 110     }
 111
 112     @Override
 113     public void clearMessage(){
 114         loginDialog.getLoginMessageLabel().setVisible(false);
 115         loginDialog.getLoginMessageLabel().setStyleName("");
 116         loginDialog.getLoginMessageLabel().setValue("");
 117     }
 118 }