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.sitemap;
  
  import org.opencms.ui.CmsVaadinUtils;
  import org.opencms.ui.components.OpenCmsTheme;
  
  import com.vaadin.ui.Component;
  import com.vaadin.ui.ComponentContainer;
  import com.vaadin.ui.CssLayout;
  import com.vaadin.v7.ui.Label;
  
  /**
   * Widget displaying a sitemap tree node, with an openable area for its children.<p>
   */
  public class CmsSitemapTreeNode extends CssLayout {
  
      /** The serial version id. */
      private static final long serialVersionUID = 1L;
  
      /** The container for the children. */
      protected ComponentContainer m_children;
  
      /** The container for the content widget (usually a resource box). */
      protected CssLayout m_contentContainer;
  
      /** True if the child area is opened. */
      private boolean m_isOpen;
  
      /** The button to open/close the llst of children. */
      private CmsSitemapTreeNodeOpener m_opener;
  
      /** Creates a new instance. */
      public CmsSitemapTreeNode() {
          CmsVaadinUtils.readAndLocalizeDesign(this, CmsVaadinUtils.getWpMessagesForCurrentLocale(), null);
          setOpen(false);
          setContent(new Label("[content not set]"));
      }
  
      /**
       * Gets the container for the children.<p>
       *
       * @return the container for the children
       */
      public ComponentContainer getChildren() {
  
          return m_children;
      }
  
      /**
       * Gets the opener button.<p>
       *
       * @return the opener button
       */
      public CmsSitemapTreeNodeOpener getOpener() {
  
          return m_opener;
      }
  
      /**
       * Returns true if the child list is opened.<p>
       *
       * @return true if the child list is opened
       */
      public boolean isOpen() {
  
          return m_isOpen;
      }
  
      /**
       * Sets additional styles.<p>
       *
       * Useful for declarative layouts.
       *
       * TODO: check if this is actually used anywhere
       *
       * @param additionalStyles the additional styles to set
       */
      public void setAdditionalStyles(String additionalStyles) {
  
          addStyleName(additionalStyles);
      }
  
      /**
       * Sets the content widget.<p>
       *
       * @param content the content widget
       */
      public void setContent(Component content) {
  
          m_contentContainer.removeAllComponents();
          m_contentContainer.addComponent(content);
      }
  
      /**
       * Opens / closes the list of children.<p<
       *
       * @param isOpen true if the children should be opened, false if they should be closed
       */
      public void setOpen(boolean isOpen) {
  
          m_opener.setStyleOpen(isOpen);
          m_children.setVisible(isOpen);
          m_isOpen = isOpen;
      }
  
      /**
       * Shows or hides the opener button.<p>
       *
       * @param visible true if the opener should be shown, else false
       */
      public void setOpenerVisible(boolean visible) {
  
          if (visible) {
              m_opener.removeStyleName(OpenCmsTheme.BUTTON_INVISIBLE);
          } else {
              m_opener.addStyleName(OpenCmsTheme.BUTTON_INVISIBLE);
          }
      }
  
  }
  