ExtMenuList.java

/*! ******************************************************************************
 *
 * Pentaho Data Integration
 *
 * Copyright (C) 2002-2013 by Pentaho : http://www.pentaho.com
 *
 *******************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
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package org.pentaho.di.ui.core.database.dialog.tags;

import org.eclipse.swt.SWT;
import org.eclipse.swt.events.ModifyEvent;
import org.eclipse.swt.events.ModifyListener;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Composite;
import org.pentaho.di.core.database.DatabaseMeta;
import org.pentaho.di.core.variables.VariableSpace;
import org.pentaho.di.ui.core.widget.ComboVar;
import org.pentaho.ui.xul.XulComponent;
import org.pentaho.ui.xul.XulDomContainer;
import org.pentaho.ui.xul.containers.XulTree;
import org.pentaho.ui.xul.dom.Element;
import org.pentaho.ui.xul.jface.tags.JfaceCMenuList;

/*
 * a Menu List with variable substitution capability
 */
public class ExtMenuList extends JfaceCMenuList {
  public ComboVar extCombo;
  private VariableSpace variableSpace;
  private XulComponent xulParent;

  private int style = SWT.NONE;

  public ExtMenuList( Element self, XulComponent parent, XulDomContainer container, String tagName ) {
    super( self, parent, container, tagName );
    xulParent = parent;
    createNewExtMenuList( parent );
  }

  @Override
  protected void setupCombobox() {

  }

  private void createNewExtMenuList( XulComponent parent ) {
    xulParent = parent;

    if ( ( xulParent != null ) && ( xulParent instanceof XulTree ) ) {
      variableSpace = (DatabaseMeta) ( (XulTree) xulParent ).getData();

    } else {
      variableSpace = new DatabaseMeta();
      style = SWT.BORDER;
    }

    extCombo = new ComboVar( variableSpace, (Composite) parent.getManagedObject(), style );
    combobox = extCombo.getCComboWidget();
    setManagedObject( extCombo );

    combobox.addSelectionListener( new SelectionAdapter() {
      public void widgetSelected( SelectionEvent e ) {
        fireSelectedEvents();
      }
    } );

    combobox.addModifyListener( new ModifyListener() {
      public void modifyText( ModifyEvent modifyEvent ) {
        fireModifiedEvents();
      }
    } );
  }

  public void setVariableSpace( VariableSpace space ) {
    variableSpace = space;
    extCombo.setVariables( variableSpace );
  }

}