Synnefo

/*

 * Copyright 2009 Electronic Business Systems Ltd.

 *

 * This file is part of GSS.

 *

 * GSS is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * GSS is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with GSS.  If not, see <http://www.gnu.org/licenses/>.

 */

package gr.ebs.gss.client;

import com.google.gwt.dom.client.NativeEvent;

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.user.client.Event.NativePreviewEvent;

import com.google.gwt.user.client.ui.Button;

import com.google.gwt.user.client.ui.DialogBox;

import com.google.gwt.user.client.ui.HTML;

import com.google.gwt.user.client.ui.HasHorizontalAlignment;

import com.google.gwt.user.client.ui.VerticalPanel;

/**

 * @author kman

 *

 */

public class SessionExpiredDialog extends DialogBox {

        /**

         * The widget constructor.

         */

        public SessionExpiredDialog() {

                // Set the dialog's caption.

                setText("Session Expired");

                setAnimationEnabled(true);

                VerticalPanel outer = new VerticalPanel();

                // Create the text and set a style name so we can style it with CSS.

                HTML text = new HTML("<p>Your session has expired. You will have to reauthenticate with your Identity Provider.</p> ");

                text.setStyleName("gss-AboutText");

                outer.add(text);

                // Create the 'OK' button, along with a listener that hides the dialog

                // when the button is clicked.

                Button confirm = new Button("Proceed", new ClickHandler() {

                        @Override

                        public void onClick(ClickEvent event) {

                                GSS.get().authenticateUser();

                                hide();

                        }

                });

                outer.add(confirm);

                outer.setCellHorizontalAlignment(confirm, HasHorizontalAlignment.ALIGN_CENTER);

                outer.setSpacing(8);

                setWidget(outer);

        }

        @Override

        protected void onPreviewNativeEvent(NativePreviewEvent preview) {

                super.onPreviewNativeEvent(preview);

                NativeEvent evt = preview.getNativeEvent();

                if (evt.getType().equals("keydown"))

                        // Use the popup's key preview hooks to close the dialog when either

                        // enter or escape is pressed.

                        switch (evt.getKeyCode()) {

                                case KeyCodes.KEY_ENTER:

                                        GSS.get().authenticateUser();

                                        hide();

                                        break;

                                case KeyCodes.KEY_ESCAPE:

                                        hide();

                                        break;

                        }

        }

}