org.jboss.errai.workspaces.client.modules.auth.AuthenticationDisplay.java Source code

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Here is the source code for org.jboss.errai.workspaces.client.modules.auth.AuthenticationDisplay.java

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/*
 * Copyright 2010 JBoss, a divison Red Hat, Inc
 *
 * 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.jboss.errai.workspaces.client.modules.auth;

import com.google.gwt.event.dom.client.*;
import com.google.gwt.event.logical.shared.CloseEvent;
import com.google.gwt.event.logical.shared.CloseHandler;
import com.google.gwt.event.logical.shared.HasCloseHandlers;
import com.google.gwt.user.client.Timer;
import com.google.gwt.user.client.ui.*;
import org.gwt.mosaic.ui.client.Caption;
import org.gwt.mosaic.ui.client.MessageBox;
import org.gwt.mosaic.ui.client.WindowPanel;
import org.gwt.mosaic.ui.client.layout.BoxLayout;
import org.gwt.mosaic.ui.client.layout.LayoutPanel;

/**
 * A mosaic based based login box
 */
public class AuthenticationDisplay extends LayoutPanel implements AuthenticationModule.Display

{
    private TextBox userNameInput;
    private PasswordTextBox passwordInput;
    private Button loginButton;

    private WindowPanel windowPanel;

    public AuthenticationDisplay() {
        super();

        userNameInput = new TextBox();
        passwordInput = new PasswordTextBox();

        loginButton = new Button("Submit");

        createLayoutWindowPanel();

        userNameInput.setFocus(true);
    }

    private void createLayoutWindowPanel() {
        windowPanel = new WindowPanel("Authentication required");
        Widget closeBtn = windowPanel.getHeader().getWidget(0, Caption.CaptionRegion.RIGHT);
        closeBtn.setVisible(false);
        windowPanel.setAnimationEnabled(false);
        LayoutPanel panel = new LayoutPanel();
        // panel.addStyleName("WSLogin");
        windowPanel.setWidget(panel);

        // create contents
        panel.setLayout(new BoxLayout(BoxLayout.Orientation.VERTICAL));
        Grid grid = new Grid(3, 2);
        grid.setWidget(0, 0, new Label("Username:"));
        grid.setWidget(0, 1, userNameInput);

        grid.setWidget(1, 0, new Label("Password:"));
        grid.setWidget(1, 1, passwordInput);

        grid.setWidget(2, 0, new HTML(""));
        grid.setWidget(2, 1, loginButton);

        /**
         * Create a handler so that striking enter automatically submits the login.
         */
        KeyDownHandler clickOnEnter = new KeyDownHandler() {

            public void onKeyDown(KeyDownEvent event) {
                if (event.getNativeKeyCode() == KeyCodes.KEY_ENTER) {
                    loginButton.click();
                }
            }
        };

        userNameInput.addKeyDownHandler(clickOnEnter);
        passwordInput.addKeyDownHandler(clickOnEnter);

        /**
         * Close the window immediately upon submission.
         */
        loginButton.addClickHandler(new ClickHandler() {

            public void onClick(ClickEvent event) {
                windowPanel.hide();
            }
        });

        panel.add(grid);

        windowPanel.getHeader().add(Caption.IMAGES.window().createImage());

        windowPanel.addCloseHandler(new CloseHandler<PopupPanel>() {
            public void onClose(CloseEvent<PopupPanel> event) {
                windowPanel = null;
            }
        });
    }

    public void showLoginPanel() {
        if (null == windowPanel)
            createLayoutWindowPanel();

        clearPanel();
        windowPanel.pack();
        windowPanel.center();
    }

    public void clearPanel() {
        userNameInput.setText("");
        passwordInput.setText("");
    }

    public void hideLoginPanel() {
        if (windowPanel != null)
            windowPanel.hide();
    }

    public HasText getUsernameInput() {
        return userNameInput;
    }

    public HasText getPasswordInput() {
        return passwordInput;
    }

    public HasClickHandlers getSubmitButton() {
        return loginButton;
    }

    public HasCloseHandlers getWindowPanel() {
        return windowPanel;
    }

    public void showWelcomeMessage(final String messageText) {
        Timer t = new Timer() {

            public void run() {
                MessageBox.info("Welcome", messageText);
            }
        };

        t.schedule(500);
    }
}