/*******************************************************************************
 * Copyright (c) 2001, 2006 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package org.eclipse.wst.xsd.ui.common.actions;

import org.eclipse.emf.common.notify.Adapter;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.wst.xsd.editor.internal.adapters.XSDAdapterFactory;
import org.eclipse.wst.xsd.editor.internal.adapters.XSDBaseAdapter;
import org.eclipse.wst.xsd.ui.common.commands.AddXSDAttributeDeclarationCommand;
import org.eclipse.xsd.XSDAttributeGroupDefinition;
import org.eclipse.xsd.XSDAttributeUse;
import org.eclipse.xsd.XSDComplexTypeDefinition;
import org.eclipse.xsd.XSDConcreteComponent;
import org.eclipse.xsd.XSDSchema;

public class AddXSDAttributeDeclarationAction extends XSDBaseAction
{
  public static String ID = "AddXSDAttributeAction";

  public AddXSDAttributeDeclarationAction(IWorkbenchPart part)
  {
    super(part);
    setText("Add Attribute");
    setId(ID);
  }

  public void run()
  {
    Object selection = ((IStructuredSelection) getSelection()).getFirstElement();

    if (selection instanceof XSDBaseAdapter)
    {
      selection = ((XSDBaseAdapter) selection).getTarget();
    }
    AddXSDAttributeDeclarationCommand command = null;
    if (selection instanceof XSDComplexTypeDefinition)
    {
      command = new AddXSDAttributeDeclarationCommand("Add Attribute", (XSDComplexTypeDefinition) selection);
      getCommandStack().execute(command);
    }
    else if (selection instanceof XSDAttributeUse)
    {
      XSDAttributeUse xsdAttributeUse = (XSDAttributeUse) selection;
      XSDConcreteComponent parent = null;
      XSDComplexTypeDefinition ct = null;
      for (parent = xsdAttributeUse.getContainer(); parent != null;)
      {
        if (parent instanceof XSDComplexTypeDefinition)
        {
          ct = (XSDComplexTypeDefinition) parent;
          break;
        }
        parent = parent.getContainer();
      }
      if (ct != null)
      {
        command = new AddXSDAttributeDeclarationCommand("Add Attribute", ct);
        getCommandStack().execute(command);
      }
    }
    else if (selection instanceof XSDAttributeGroupDefinition)
    {
      command = new AddXSDAttributeDeclarationCommand("Add Attribute", (XSDAttributeGroupDefinition)selection);
      getCommandStack().execute(command);
    }
    else if (selection instanceof XSDSchema)
    {
      command = new AddXSDAttributeDeclarationCommand("Add Attribute", (XSDSchema)selection);
      getCommandStack().execute(command);
    }
    
    if (command != null)
    {
      Adapter adapter = XSDAdapterFactory.getInstance().adapt(command.getAddedComponent());
      if (adapter != null)
        provider.setSelection(new StructuredSelection(adapter));
    }

  }
}