/**
    * This file Copyright (c) 2010-2014 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.contentapp.field;
  
  import info.magnolia.event.EventBus;
  import info.magnolia.ui.imageprovider.definition.ImageProviderDefinition;
  import info.magnolia.ui.workbench.WorkbenchPresenter;
  import info.magnolia.ui.workbench.WorkbenchView;
  import info.magnolia.ui.workbench.definition.WorkbenchDefinition;
  import info.magnolia.ui.workbench.event.SearchEvent;
  import info.magnolia.ui.workbench.event.SelectionChangedEvent;
  import info.magnolia.ui.workbench.tree.TreePresenterDefinition;
  
  import org.slf4j.Logger;
  import org.slf4j.LoggerFactory;
  
  import com.vaadin.data.Item;
  import com.vaadin.ui.Component;
  import com.vaadin.ui.CustomField;
  
  /**
   * Wraps a workbench instance into a field. While it is quite useful in dialogs the users are discouraged
   * from using it in a form.
   */
  public class WorkbenchField extends CustomField<Object> {
  
      private static final String DEFAULT_HEIGHT = "400px";
  
      private Logger log = LoggerFactory.getLogger(getClass());
  
      private ImageProviderDefinition imageProvider;
  
      private WorkbenchDefinition workbenchDefinition;
  
      private WorkbenchPresenter presenter;
  
      private EventBus workbenchEventbus;
  
      private WorkbenchView view;
  
      public WorkbenchField(WorkbenchDefinition definition, ImageProviderDefinition imageProvider, WorkbenchPresenter presenter, EventBus eventBus) {
          this.workbenchDefinition = definition;
          this.imageProvider = imageProvider;
          this.presenter = presenter;
          this.workbenchEventbus = eventBus;
      }
  
      @Override
      protected Component initContent() {
          this.view = presenter.start(workbenchDefinition, imageProvider, workbenchEventbus);
          this.view.setViewType(TreePresenterDefinition.VIEW_TYPE);
          this.view.asVaadinComponent().setHeight(DEFAULT_HEIGHT);
          presenter.select(getValue());
  
          workbenchEventbus.addHandler(SelectionChangedEvent.class, new SelectionChangedEvent.Handler() {
              @Override
              public void onSelectionChanged(SelectionChangedEvent event) {
                  setValue(event.getFirstItemId(), false);
              }
          });
  
          workbenchEventbus.addHandler(SearchEvent.class, new SearchEvent.Handler() {
              @Override
              public void onSearch(SearchEvent event) {
                  presenter.doSearch(event.getSearchExpression());
              }
          });
  
         return this.view.asVaadinComponent();
     }
 
     @Override
     public void setPropertyDataSource(com.vaadin.data.Property newDataSource) {
         super.setPropertyDataSource(null);
     }
 
     @Override
     public Class<? extends Item> getType() {
         return Item.class;
     }
 
     public WorkbenchPresenter getPresenter() {
         return presenter;
     }
 }