package org.jboss.errai.demo.todo.client.local;
import javax.inject.Inject;
import org.jboss.errai.bus.client.api.BusErrorCallback;
import org.jboss.errai.bus.client.api.messaging.Message;
import org.jboss.errai.common.client.api.Caller;
import org.jboss.errai.common.client.api.RemoteCallback;
import org.jboss.errai.security.shared.api.identity.User;
import org.jboss.errai.security.shared.service.AuthenticationService;
import org.jboss.errai.ui.nav.client.local.Page;
import org.jboss.errai.ui.nav.client.local.PageShowing;
import org.jboss.errai.ui.nav.client.local.TransitionAnchor;
import org.jboss.errai.ui.nav.client.local.TransitionTo;
import org.jboss.errai.ui.nav.client.local.api.SecurityError;
import org.jboss.errai.ui.shared.api.annotations.DataField;
import org.jboss.errai.ui.shared.api.annotations.EventHandler;
import org.jboss.errai.ui.shared.api.annotations.Templated;
import com.google.gwt.dom.client.Document;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.DomEvent;
import com.google.gwt.event.dom.client.FocusEvent;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyDownEvent;
import com.google.gwt.user.client.ui.Button;
import com.google.gwt.user.client.ui.Composite;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.TextBox;
@Templated("#main")
@Page(path = "login", role = { org.jboss.errai.ui.nav.client.local.api.LoginPage.class, SecurityError.class })
public class LoginPage extends Composite {
@Inject
private Caller<AuthenticationService> authCaller;
@Inject
private @DataField
Label loginError;
@Inject
private
@DataField
TextBox username;
@Inject
private
@DataField
PasswordTextBox password;
@Inject
private @DataField
Button loginButton;
@Inject
private @DataField
TransitionAnchor<SignupPage> signupLink;
@Inject
private TransitionTo<TodoListPage> toListPage;
@PageShowing
private void onPageShowing() {
loginError.setVisible(false);
}
@EventHandler
private void hideErrorLabel(FocusEvent e) {
loginError.setVisible(false);
}
@EventHandler("loginButton")
private void login(ClickEvent e) {
authCaller.call(new RemoteCallback<User>() {
@Override
public void callback(User user) {
toListPage.go();
}
}, new BusErrorCallback() {
@Override
public boolean error(Message message, Throwable throwable) {
loginError.setVisible(true);
return false;
}
}).login(username.getText(), password.getText());
}
@EventHandler({ "username", "password" })
private void onKeyDown(KeyDownEvent event) {
// fire change events to update the binder properties
DomEvent.fireNativeEvent(Document.get().createChangeEvent(), password);
DomEvent.fireNativeEvent(Document.get().createChangeEvent(), username);
// auto-submit login form when user presses enter
if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER &&
!username.getText().trim().equals("") &&
!password.getText().trim().equals("")) {
login(null);
}
}
}