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.components.extensions;
  
  import org.opencms.ui.components.CmsUploadButton.I_UploadListener;
  import org.opencms.ui.shared.components.CmsUploadAreaState;
  import org.opencms.ui.shared.rpc.I_CmsUploadRpc;
  
  import java.util.ArrayList;
  import java.util.List;
  
  import com.vaadin.server.AbstractExtension;
  import com.vaadin.ui.AbstractComponent;
  
  /**
   * Extends the given component to be an upload drop area.<p>
   */
  public class CmsUploadAreaExtension extends AbstractExtension implements I_CmsUploadRpc {
  
      /** The serial version id. */
      private static final long serialVersionUID = 3978957151754705873L;
  
      /** The registered window close listeners. */
      private List<I_UploadListener> m_listeners;
  
      /**
       * Constructor.<p>
       *
       * @param component the component to extend
       */
      public CmsUploadAreaExtension(AbstractComponent component) {
  
          extend(component);
          registerRpc(this);
          m_listeners = new ArrayList<I_UploadListener>();
      }
  
      /**
       * Adds a window close listener.<p>
       *
       * @param listener the listener to add
       */
      public void addUploadListener(I_UploadListener listener) {
  
          m_listeners.add(listener);
      }
  
      /**
       * @see org.opencms.ui.shared.rpc.I_CmsUploadRpc#onUploadFinished(java.util.List)
       */
      public void onUploadFinished(List<String> files) {
  
          for (I_UploadListener listener : m_listeners) {
              listener.onUploadFinished(files);
          }
      }
  
      /**
       * Removes the given window close listener.<p>
       *
       * @param listener the listener to remove
       */
      public void removeUploadListener(I_UploadListener listener) {
  
          m_listeners.remove(listener);
      }
  
      /**
       * Sets the upload target folder.<p>
       *
       * @param targetFolder the folder root path
       */
      public void setTargetFolder(String targetFolder) {
  
          getState().setTargetFolderRootPath(targetFolder);
      }
  
      /**
       * @see com.vaadin.server.AbstractClientConnector#getState()
       */
      @Override
      protected CmsUploadAreaState getState() {
  
          return (CmsUploadAreaState)super.getState();
      }
  }
  