content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (c) Alkacon Software GmbH & Co. KG (https://www.alkacon.com)
   *
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   *
   * This library 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
   * Lesser General Public License for more details.
   *
   * For further information about Alkacon Software, please see the
   * company website: https://www.alkacon.com
   *
   * For further information about OpenCms, please see the
   * project website: https://www.opencms.org
   *
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  
  package org.opencms.gwt.client.ui.contextmenu;
  
  import org.opencms.gwt.client.CmsCoreProvider;
  import org.opencms.gwt.client.Messages;
  import org.opencms.gwt.client.ui.CmsPopup;
  import org.opencms.gwt.client.ui.CmsPushButton;
  import org.opencms.gwt.client.ui.I_CmsButton.ButtonColor;
  import org.opencms.gwt.client.ui.I_CmsButton.ButtonStyle;
  import org.opencms.gwt.shared.CmsContextMenuEntryBean;
  import org.opencms.util.CmsUUID;
  
  import com.google.gwt.event.dom.client.ClickEvent;
  import com.google.gwt.event.dom.client.ClickHandler;
  import com.google.gwt.user.client.Window;
  import com.google.gwt.user.client.ui.FlowPanel;
  import com.google.gwt.user.client.ui.Frame;
  
  /**
   * Dialog used to display the "About" information in an iframe.<p>
   */
  public class CmsAbout implements I_CmsHasContextMenuCommand, I_CmsContextMenuCommand {
  
      /**
       * Creates a new context menu command.<p>
       *
       * @return the context menu command created
       */
      public static I_CmsContextMenuCommand getContextMenuCommand() {
  
          return new CmsAbout();
      }
  
      /**
       * Shows the OpenCms about dialog.<p>
       */
      public static void showAbout() {
  
          final CmsPopup popup = new CmsPopup(Messages.get().key(Messages.GUI_ABOUT_DIALOG_TITLE_0));
          FlowPanel container = new FlowPanel();
          int height = 450;
          if (Window.getClientHeight() < height) {
              height = Math.max(300, Window.getClientHeight() - 50);
          }
          container.setHeight(height + "px");
          Frame frame = new Frame();
  
          frame.setWidth("100%");
          frame.setHeight("100%");
          frame.setUrl(CmsCoreProvider.get().getAboutLink());
          container.add(frame);
          popup.setMainContent(container);
          popup.center();
          popup.addDialogClose(null);
          CmsPushButton closeButton = new CmsPushButton();
          closeButton.setText(Messages.get().key(Messages.GUI_CLOSE_0));
          closeButton.setUseMinWidth(true);
  
          closeButton.setButtonStyle(ButtonStyle.TEXT, ButtonColor.BLUE);
          closeButton.addClickHandler(new ClickHandler() {
  
              /**
               * @see com.google.gwt.event.dom.client.ClickHandler#onClick(com.google.gwt.event.dom.client.ClickEvent)
               */
              public void onClick(ClickEvent event) {
  
                  popup.hide();
              }
          });
          popup.addButton(closeButton);
          popup.addDialogClose(null);
      }
  
      /**
       * @see org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuCommand#execute(org.opencms.util.CmsUUID, org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuHandler, org.opencms.gwt.shared.CmsContextMenuEntryBean)
       */
      public void execute(CmsUUID structureId, I_CmsContextMenuHandler handler, CmsContextMenuEntryBean bean) {
  
          showAbout();
      }
  
      /**
       * @see org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuCommand#getItemWidget(org.opencms.util.CmsUUID, org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuHandler, org.opencms.gwt.shared.CmsContextMenuEntryBean)
       */
      public A_CmsContextMenuItem getItemWidget(
          CmsUUID structureId,
          I_CmsContextMenuHandler handler,
          CmsContextMenuEntryBean bean) {
  
          return null;
      }
  
      /**
       * @see org.opencms.gwt.client.ui.contextmenu.I_CmsContextMenuCommand#hasItemWidget()
       */
      public boolean hasItemWidget() {
  
          return false;
      }
  
  }
  