/**
    * This file Copyright (c) 2014-2018 Magnolia International
    * Ltd.  (http://www.magnolia-cms.com). All rights reserved.
    *
    *
    * This file is dual-licensed under both the Magnolia
    * Network Agreement and the GNU General Public License.
    * You may elect to use one or the other of these licenses.
    *
   * This file is distributed in the hope that it will be
   * useful, but AS-IS and WITHOUT ANY WARRANTY; without even the
   * implied warranty of MERCHANTABILITY or FITNESS FOR A
   * PARTICULAR PURPOSE, TITLE, or NONINFRINGEMENT.
   * Redistribution, except as permitted by whichever of the GPL
   * or MNA you select, is prohibited.
   *
   * 1. For the GPL license (GPL), you can redistribute and/or
   * modify this file under the terms of the GNU General
   * Public License, Version 3, as published by the Free Software
   * Foundation.  You should have received a copy of the GNU
   * General Public License, Version 3 along with this program;
   * if not, write to the Free Software Foundation, Inc., 51
   * Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
   *
   * 2. For the Magnolia Network Agreement (MNA), this file
   * and the accompanying materials are made available under the
   * terms of the MNA which accompanies this distribution, and
   * is available at http://www.magnolia-cms.com/mna.html
   *
   * Any modifications to this file must keep this entire header
   * intact.
   *
   */
  package info.magnolia.ui.workbench.tree;
  
  import com.vaadin.annotations.JavaScript;
  import com.vaadin.server.AbstractJavaScriptExtension;
  import com.vaadin.server.ClientConnector;
  import com.vaadin.v7.data.Container;
  import com.vaadin.v7.ui.Table;
  
  /**
   * Brings a table row into view.
   */
  @JavaScript("rowscroller_connector.js")
  public class RowScroller extends AbstractJavaScriptExtension {
  
      public static final String MGNL_TABLE = "mgnlTable";
  
      public RowScroller(Table table) {
          extend(table);
      }
  
      public void bringRowIntoView(Object rowId) {
          scrollRowIntoView(rowId);
      }
  
      @Override
      protected Class<? extends ClientConnector> getSupportedParentType() {
          return Table.class;
      }
  
      private void scrollRowIntoView(Object itemId) {
          int itemIndex = getItemIndex(itemId);
          if (itemIndex >= 0) {
              callFunction("scrollRowIntoView", itemIndex);
          }
      }
  
      @Override
      public Table getParent() {
          return (Table) super.getParent();
      }
  
      protected int getItemIndex(Object itemId) {
          Container container = getParent().getContainerDataSource();
          return ((Container.Indexed)container).indexOfId(itemId);
      }
  
      @Override
      public void attach() {
          super.attach();
          getParent().addStyleName(MGNL_TABLE + getParent().getConnectorId());
      }
  }