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.ui.dialogs.embedded;
  
  import org.opencms.file.CmsObject;
  import org.opencms.gwt.shared.CmsDataViewConstants;
  import org.opencms.gwt.shared.CmsDataViewParamEncoder;
  import org.opencms.json.JSONArray;
  import org.opencms.json.JSONException;
  import org.opencms.json.JSONObject;
  import org.opencms.main.CmsLog;
  import org.opencms.ui.I_CmsDialogContext;
  import org.opencms.util.CmsStringUtil;
  import org.opencms.widgets.dataview.I_CmsDataView;
  import org.opencms.widgets.dataview.I_CmsDataViewItem;
  
  import java.util.List;
  import java.util.Locale;
  
  import org.apache.commons.logging.Log;
  
  /**
   * Class representing the configuration passed to the Vaadin data view dialog by the client.<p>
   */
  public class CmsDataViewParams {
  
      /** Logger instance for this class. */
      private static final Log LOG = CmsLog.getLog(CmsDataViewParams.class);
  
      /** The callback to call with the selected items. */
      private String m_callback;
  
      /** Argument to pass back to the callback. */
      private String m_callbackArg;
  
      /** Value of multiselect option. */
      private String m_multiSelect;
  
      /** Value of class option. */
      private String m_viewClass;
  
      /** Configuration string for the data view class. */
      private String m_viewArg;
  
      /**
       * Creates a new instance by parsing the query string of the given URI.<p>
       *
       * @param context the dialog context
       */
      public CmsDataViewParams(I_CmsDialogContext context) {
  
          if (context.getParameters().get(CmsDataViewConstants.PARAM_CONFIG) != null) {
              try {
                  JSONObject json = new JSONObject(CmsDataViewParamEncoder.decodeString(context.getParameters().get(CmsDataViewConstants.PARAM_CONFIG)));
                  m_callback = json.optString(CmsDataViewConstants.PARAM_CALLBACK);
                  m_callbackArg = json.optString(CmsDataViewConstants.PARAM_CALLBACK_ARG);
                  m_viewClass = json.optString(CmsDataViewConstants.CONFIG_VIEW_CLASS);
                  m_viewArg = json.optString(CmsDataViewConstants.CONFIG_VIEW_ARG);
                  m_multiSelect = json.optString(CmsDataViewConstants.CONFIG_MULTI_SELECT);
              } catch (JSONException e) {
                  LOG.error(e.getLocalizedMessage(), e);
              }
          }
      }
  
      /**
       * Creates the data view instance.<p>
       *
       * @param cms the CMS context
       * @param locale the locale
       * @return the new data view instance
       */
      public I_CmsDataView createViewInstance(CmsObject cms, Locale locale) {
  
          try {
              Class<?> cls = Class.forName(m_viewClass);
              Object viewObj = cls.newInstance();
              I_CmsDataView dataView = (I_CmsDataView)viewObj;
              dataView.initialize(cms, m_viewArg, locale);
              return dataView;
          } catch (Exception e) {
              LOG.error(e.getLocalizedMessage(), e);
              return null;
          }
      }
  
      /**
       * Return true if the list should have multi-selection enabled.<p>
       *
       * @return true if multi-selection should be enabled
       */
      public boolean isMultiSelect() {
  
          return Boolean.parseBoolean(m_multiSelect);
      }
  
      /**
       * Creates the script which calls the callback with the result.<p>
       *
       * @param result the list of result data items
       * @return the script to call the callback
       */
      public String prepareCallbackScript(List<I_CmsDataViewItem> result) {
  
          try {
              if (CmsStringUtil.isEmptyOrWhitespaceOnly(m_callbackArg)) {
                  m_callbackArg = "{}";
              }
              JSONObject obj = new JSONObject(m_callbackArg);
              JSONArray selection = new JSONArray();
              for (I_CmsDataViewItem item : result) {
                  JSONObject singleResult = new JSONObject();
                  singleResult.put(CmsDataViewConstants.FIELD_ID, item.getId());
                  singleResult.put(CmsDataViewConstants.FIELD_TITLE, item.getTitle());
                  singleResult.put(CmsDataViewConstants.FIELD_DESCRIPTION, item.getDescription());
                  singleResult.put(CmsDataViewConstants.FIELD_DATA, item.getData());
                  selection.put(singleResult);
              }
              obj.put(CmsDataViewConstants.KEY_RESULT, selection);
              String jsonString = obj.toString();
              return "parent." + m_callback + "(" + jsonString + ")";
          } catch (Exception e) {
              return null;
          }
  
      }
  
  }
  