content: /*
   * This library is part of OpenCms -
   * the Open Source Content Management System
   *
   * Copyright (C) Alkacon Software (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.ade.sitemap.client.alias;
  
  import org.opencms.gwt.client.ui.css.I_CmsCellTableResources;
  import org.opencms.gwt.client.util.CmsDomUtil;
  
  import com.google.gwt.safehtml.shared.SafeHtml;
  import com.google.gwt.safehtml.shared.SafeHtmlUtils;
  import com.google.gwt.user.cellview.client.CellTable;
  import com.google.gwt.user.cellview.client.LoadingStateChangeEvent;
  import com.google.gwt.user.client.Timer;
  
  /**
   * Various static utility methods for dealing with cell tables.<p>
   */
  public final class CmsCellTableUtil {
  
      /** CSS class for the error text. */
      public static final String STATUS_ERROR = I_CmsCellTableResources.INSTANCE.cellTableStyle().statusError();
  
      /** CSS class for the 'Status OK' text. */
      public static final String STATUS_OK = I_CmsCellTableResources.INSTANCE.cellTableStyle().statusOk();
  
      /**
       * Hidden constructor.<p>
       */
      private CmsCellTableUtil() {
  
          // nothing
      }
  
      /**
       * Ensures that surrounding scroll panels are notified when a table changes size.<p>
       *
       * @param table the table for which the parent scroll panels should be notified
       */
      public static void ensureCellTableParentResize(final CellTable<?> table) {
  
          // we need to update the scroll panel when the table is redrawn, but the redraw() method of the table is asynchronous,
          // i.e. it only schedules an actual redraw. However, the method which is responsible for the actual redrawing triggers a
          // loading state event before it does the redrawing. Using a timer at this point, we can execute code after the redrawing
          // has happend.
          table.addLoadingStateChangeHandler(new LoadingStateChangeEvent.Handler() {
  
              public void onLoadingStateChanged(LoadingStateChangeEvent event) {
  
                  Timer resizeTimer = new Timer() {
  
                      @Override
                      public void run() {
  
                          CmsDomUtil.resizeAncestor(table);
                      }
                  };
                  resizeTimer.schedule(10);
              }
          });
      }
  
      /**
       * Formats the HTML for the error column of a cell table given an error message.<p>
       *
       * @param error the error message (null for no error)
       *
       * @return the SafeHtml representing the contents of the error cell
       */
      public static SafeHtml formatErrorHtml(String error) {
  
          String text;
          String cssClass;
          String title = "";
  
          if (error == null) {
              text = CmsAliasMessages.messageStatusOk();
              cssClass = STATUS_OK;
          } else {
              text = CmsAliasMessages.messageStatusError();
              title = SafeHtmlUtils.htmlEscape(error);
              cssClass = STATUS_ERROR;
          }
          String html = "<div class='" + cssClass + "' title='" + title + "'>" + text + "</div>";
          return SafeHtmlUtils.fromSafeConstant(html);
      }
  
  }
  