/*
* Copyright (c) 2009-2011 Lockheed Martin Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.eurekastreams.web.client.ui.common.dialog.login;
import org.eurekastreams.web.client.events.FormLoginCompleteEvent;
import org.eurekastreams.web.client.ui.Session;
import org.eurekastreams.web.client.ui.common.dialog.BaseDialogContent;
import org.eurekastreams.web.client.ui.pages.master.StaticResourceBundle;
import com.google.gwt.event.dom.client.ClickEvent;
import com.google.gwt.event.dom.client.ClickHandler;
import com.google.gwt.event.dom.client.KeyCodes;
import com.google.gwt.event.dom.client.KeyUpEvent;
import com.google.gwt.event.dom.client.KeyUpHandler;
import com.google.gwt.user.client.History;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.ui.CheckBox;
import com.google.gwt.user.client.ui.FlowPanel;
import com.google.gwt.user.client.ui.FormPanel;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteEvent;
import com.google.gwt.user.client.ui.FormPanel.SubmitCompleteHandler;
import com.google.gwt.user.client.ui.Hidden;
import com.google.gwt.user.client.ui.Hyperlink;
import com.google.gwt.user.client.ui.Label;
import com.google.gwt.user.client.ui.PasswordTextBox;
import com.google.gwt.user.client.ui.TextBox;
import com.google.gwt.user.client.ui.Widget;
/**
* Template for a login dialog.
*/
public class LoginDialogContent extends BaseDialogContent
{
/** The login form. */
private final FormPanel loginForm = new FormPanel();
/** The error label. */
private final Label errorMessage = new Label("");
/** The submit button. */
private final Hyperlink submitButton = new Hyperlink("Submit", History.getToken());
/** The cancel button. */
private final Hyperlink cancelButton = new Hyperlink("Cancel", History.getToken());
/** The user name text box. */
private final TextBox username = new TextBox();
/** The password text box. */
private final PasswordTextBox password = new PasswordTextBox();
/** Remember me checkbox. */
private final CheckBox rememberMe = new CheckBox("Keep me logged in.");
/** Container for login elements. */
private final FlowPanel loginContentContainer = new FlowPanel();
/**
* Default constructor. Builds up widgets.
*/
public LoginDialogContent()
{
setupWidgets();
setupEvents();
}
/**
* Builds the UI.
*/
private void setupWidgets()
{
loginForm.setAction("/j_spring_security_check");
loginForm.setMethod(FormPanel.METHOD_POST);
loginContentContainer.addStyleName(StaticResourceBundle.INSTANCE.coreCss().loginContentContainer());
FlowPanel loginPanel = new FlowPanel();
loginPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().loginContent());
loginForm.setWidget(loginPanel);
FlowPanel navPanel = new FlowPanel();
navPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().loginNavPanel());
navPanel.add(errorMessage);
loginContentContainer.add(navPanel);
submitButton.addStyleName(StaticResourceBundle.INSTANCE.coreCss().loginButton());
cancelButton.addStyleName(StaticResourceBundle.INSTANCE.coreCss().cancelButton());
final FlowPanel usernamePanel = new FlowPanel();
usernamePanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().formElement());
Label usernameLabel = new Label("Username: ");
usernameLabel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().formLabel());
usernamePanel.add(usernameLabel);
username.setName("j_username");
usernamePanel.add(username);
loginPanel.add(usernamePanel);
final FlowPanel passwordPanel = new FlowPanel();
Label passwordLabel = new Label("Password: ");
passwordPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().formElement());
passwordLabel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().formLabel());
passwordPanel.add(passwordLabel);
password.setName("j_password");
passwordPanel.add(password);
Hidden returnTo = new Hidden("spring-security-redirect", "/login.html");
returnTo.setName("spring-security-redirect");
loginPanel.add(returnTo);
rememberMe.setName("_spring_security_remember_me");
loginPanel.add(passwordPanel);
loginPanel.add(rememberMe);
errorMessage.addStyleName(StaticResourceBundle.INSTANCE.coreCss().formErrorBox());
errorMessage.setVisible(false);
loginContentContainer.add(loginPanel);
FlowPanel buttonPanel = new FlowPanel();
buttonPanel.addStyleName(StaticResourceBundle.INSTANCE.coreCss().loginButtonPanel());
buttonPanel.add(submitButton);
buttonPanel.add(cancelButton);
loginContentContainer.add(buttonPanel);
loginForm.add(loginContentContainer);
}
/**
* Wires up events.
*/
private void setupEvents()
{
submitButton.addClickHandler(new ClickHandler()
{
public void onClick(final ClickEvent inArg0)
{
loginForm.submit();
}
});
KeyUpHandler enterKeyHandler = new KeyUpHandler()
{
public void onKeyUp(final KeyUpEvent ev)
{
if (ev.getNativeKeyCode() == KeyCodes.KEY_ENTER && !ev.isAnyModifierKeyDown())
{
loginForm.submit();
}
}
};
username.addKeyUpHandler(enterKeyHandler);
password.addKeyUpHandler(enterKeyHandler);
rememberMe.addKeyUpHandler(enterKeyHandler);
cancelButton.addClickHandler(new ClickHandler()
{
public void onClick(final ClickEvent inArg0)
{
close();
}
});
loginForm.addSubmitCompleteHandler(new SubmitCompleteHandler()
{
public void onSubmitComplete(final SubmitCompleteEvent ev)
{
// result ends (or may end) with a newline, so check using startsWith
String formReturnValue = ev.getResults();
if (formReturnValue.startsWith("LOGIN_SUCCESS"))
{
errorMessage.setVisible(false);
close();
Session.getInstance().getEventBus().notifyObservers(new FormLoginCompleteEvent());
}
else if (formReturnValue.startsWith("LOGIN_DISABLED"))
{
errorMessage.setVisible(false);
close();
Window.Location.assign("/requestaccess.html");
}
else
{
errorMessage.setText("The user name or password you entered was incorrect.");
errorMessage.setVisible(true);
}
}
});
}
/**
* The title of the login dialog.
*
* @return the title.
*/
public final String getTitle()
{
return "Login";
}
/**
* The login form.
*
* @return the login form.
*/
public final Widget getBody()
{
return loginForm;
}
/**
* The CSS class to use for this dialog.
*
* @return the name of the CSS class to use.
*/
public String getCssName()
{
return StaticResourceBundle.INSTANCE.coreCss().loginDialog();
}
/**
* Provides a hook to fire off events when the dialog is shown.
*/
@Override
public void show()
{
username.setText("");
password.setText("");
errorMessage.setVisible(false);
username.setFocus(true);
}
}