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 GmbH & Co. KG, 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.workplace.list;
  
  import java.io.IOException;
  import java.util.Iterator;
  import java.util.List;
  
  import javax.servlet.ServletException;
  import javax.servlet.jsp.JspException;
  import javax.servlet.jsp.JspWriter;
  
  /**
   * Helper class for managing three lists on the same dialog.<p>
   *
   * @since 6.0.0
   */
  public class CmsMultiListDialog {
  
      /** the workplace instance for the active list. */
      private A_CmsListDialog m_activeWp;
  
      /** the workplace instances for the lists. */
      private List<A_CmsListDialog> m_wps;
  
      /**
       * Default constructor.<p>
       *
       * @param wps the lists to be displayed
       */
      public CmsMultiListDialog(List<A_CmsListDialog> wps) {
  
          m_wps = wps;
          Iterator<A_CmsListDialog> i = m_wps.iterator();
          while (i.hasNext()) {
              A_CmsListDialog wp = i.next();
              if (wp.isActive()) {
                  m_activeWp = wp;
              }
          }
          if (m_activeWp == null) {
              m_activeWp = m_wps.get(0);
          }
      }
  
      /**
       * Display method for two list dialogs.<p>
       *
       * @throws JspException if dialog actions fail
       * @throws IOException if writing to the JSP out fails, or in case of errros forwarding to the required result page
       * @throws ServletException in case of errros forwarding to the required result page
       */
      public void displayDialog() throws JspException, IOException, ServletException {
  
          displayDialog(false);
      }
  
      /**
       * Display method for two list dialogs, executes actions, but only displays if needed.<p>
       *
       * @param writeLater if <code>true</code> no output is written,
       *                   you have to call manually the <code>{@link #defaultActionHtml()}</code> method.
       *
       * @throws JspException if dialog actions fail
       * @throws IOException if writing to the JSP out fails, or in case of errros forwarding to the required result page
       * @throws ServletException in case of errros forwarding to the required result page
       */
      public void displayDialog(boolean writeLater) throws JspException, IOException, ServletException {
  
          // perform the active list actions
          m_activeWp.actionDialog();
          if (m_activeWp.isForwarded()) {
              return;
          }
  
          Iterator<A_CmsListDialog> i = m_wps.iterator();
          while (i.hasNext()) {
              A_CmsListDialog wp = i.next();
              wp.refreshList();
          }
  
          if (writeLater) {
              return;
          }
          writeDialog();
      }
  
      /**
       * Returns the activeWp.<p>
       *
       * @return the activeWp
       */
      public A_CmsListDialog getActiveWp() {
  
          return m_activeWp;
      }
  
      /**
       * Returns <code>true</code> if one of the lists has been forwarded.<p>
       *
       * @return <code>true</code> if one of the lists has been forwarded
       */
      public boolean isForwarded() {
  
          Iterator<A_CmsListDialog> i = m_wps.iterator();
          while (i.hasNext()) {
              A_CmsListDialog wp = i.next();
              if (wp.isForwarded()) {
                  return true;
              }
          }
          return false;
      }
  
      /**
       * Writes the dialog html code, only if the <code>{@link org.opencms.workplace.CmsDialog#ACTION_DEFAULT}</code> is set.<p>
       *
       * @throws IOException if writing to the JSP out fails, or in case of errros forwarding to the required result page
       */
      public void writeDialog() throws IOException {
  
          JspWriter out = m_activeWp.getJsp().getJspContext().getOut();
          out.print(defaultActionHtml());
      }
  
      /**
       * Generates the dialog starting html code.<p>
       *
       * @return html code
       */
      protected String defaultActionHtml() {
  
          StringBuffer result = new StringBuffer(2048);
          result.append(defaultActionHtmlStart());
          result.append(defaultActionHtmlContent());
          result.append(defaultActionHtmlEnd());
          return result.toString();
      }
  
      /**
       * Returns the html code for the default action content.<p>
       *
       * @return html code
       */
      protected String defaultActionHtmlContent() {
  
          StringBuffer result = new StringBuffer(2048);
          result.append("<table id='twolists' cellpadding='0' cellspacing='0' align='center' width='100%'>\n");
          Iterator<A_CmsListDialog> i = m_wps.iterator();
          while (i.hasNext()) {
              A_CmsListDialog wp = i.next();
              result.append("\t<tr>\n");
              result.append("\t\t<td valign='top'>\n");
              result.append("\t\t\t").append(wp.defaultActionHtmlContent()).append("\n");
              result.append("\t\t</td>\n");
              result.append("\t</tr>\n");
              result.append("\t<tr><td height='20'/></tr>\n");
          }
          result.append("</table>\n");
          return result.toString();
      }
  
      /**
       * Generates the dialog ending html code.<p>
       *
       * @return html code
       */
      protected String defaultActionHtmlEnd() {
  
          return m_activeWp.defaultActionHtmlEnd() + m_activeWp.dialogContentEnd();
      }
  
      /**
       * Generates the dialog starting html code.<p>
       *
       * @return html code
       */
      protected String defaultActionHtmlStart() {
  
          return m_activeWp.getList().listJs() + m_activeWp.dialogContentStart(getActiveWp().getParamTitle());
      }
  }
  