content: /*******************************************************************************
   * Copyright (c) 2003, 2008 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.jsdt.internal.ui.navigator;
  
  import org.eclipse.jface.action.IAction;
  import org.eclipse.jface.action.IMenuCreator;
  import org.eclipse.jface.resource.ImageDescriptor;
  import org.eclipse.jface.text.ITextSelection;
  import org.eclipse.jface.util.IPropertyChangeListener;
  import org.eclipse.jface.viewers.ISelection;
  import org.eclipse.jface.viewers.ISelectionProvider;
  import org.eclipse.jface.viewers.IStructuredSelection;
  import org.eclipse.jface.viewers.SelectionChangedEvent;
  import org.eclipse.jface.viewers.TreeViewer;
  import org.eclipse.swt.events.HelpListener;
  import org.eclipse.swt.widgets.Event;
  import org.eclipse.swt.widgets.Shell;
  import org.eclipse.ui.IWorkbenchSite;
  import org.eclipse.wst.jsdt.core.JavaScriptModelException;
  import org.eclipse.wst.jsdt.internal.ui.javaeditor.JavaTextSelection;
  import org.eclipse.wst.jsdt.ui.actions.OpenAction;
  import org.eclipse.wst.jsdt.ui.actions.SelectionDispatchAction;
  
  public class OpenAndExpand extends SelectionDispatchAction implements IAction {
  
  	private OpenAction fOpenAction;
  	private TreeViewer fViewer;
  
  	public OpenAndExpand(IWorkbenchSite site, OpenAction openAction, TreeViewer viewer) {
  		super(site);
  		fOpenAction = openAction;
  		fViewer = viewer;
  	}
  
  	public void run() {
  		fOpenAction.run();
  		if(getSelection() != null && getSelection() instanceof IStructuredSelection)
  			expand(((IStructuredSelection)getSelection()).getFirstElement());
  		
  	}
  
  	public void run(ISelection selection) {
  		fOpenAction.run(selection);
  		if(selection != null && selection instanceof IStructuredSelection)
  			expand(((IStructuredSelection)selection).getFirstElement());
  	}
  
  	public void run(IStructuredSelection selection) {
  		fOpenAction.run(selection);
  		if(selection != null)
  			expand(selection.getFirstElement());
  	}
  
  	public void run(ITextSelection selection) {
  		fOpenAction.run(selection);
  	}
  
  	public void run(JavaTextSelection selection) {
  		fOpenAction.run(selection);
  	}
  
  	public void run(Object[] elements) {
  		fOpenAction.run(elements);		
  	}
  
  	public void runWithEvent(Event event) {
  		fOpenAction.runWithEvent(event);
  	} 
  	
  	public void addPropertyChangeListener(IPropertyChangeListener listener) {
  		fOpenAction.addPropertyChangeListener(listener);
  	}
  
  	public boolean equals(Object obj) {
  		return fOpenAction.equals(obj);
  	}
  
  	public int getAccelerator() {
  		return fOpenAction.getAccelerator();
  	}
  
  	public String getActionDefinitionId() {
  		return fOpenAction.getActionDefinitionId();
  	}
  
  	public String getDescription() {
  		return fOpenAction.getDescription();
  	}
  
  	public ImageDescriptor getDisabledImageDescriptor() {
  		return fOpenAction.getDisabledImageDescriptor();
  	}
  
  	public Object getElementToOpen(Object object) throws JavaScriptModelException {
  		return fOpenAction.getElementToOpen(object);
  	}
  
  	public HelpListener getHelpListener() {
  		return fOpenAction.getHelpListener();
  	}
  
  	public ImageDescriptor getHoverImageDescriptor() {
  		return fOpenAction.getHoverImageDescriptor();
  	}
  
  	public String getId() {
  		return fOpenAction.getId();
  	}
  
  	public ImageDescriptor getImageDescriptor() {
  		return fOpenAction.getImageDescriptor();
  	}
  
  	public IMenuCreator getMenuCreator() {
  		return fOpenAction.getMenuCreator();
  	}
  
  	public ISelection getSelection() {
  		return fOpenAction.getSelection();
  	}
  
  	public ISelectionProvider getSelectionProvider() {
  		return fOpenAction.getSelectionProvider();
  	}
  
  	public Shell getShell() {
  		return fOpenAction.getShell();
  	}
  
  	public IWorkbenchSite getSite() {
  		return fOpenAction.getSite();
  	}
  
  	public int getStyle() {
  		return fOpenAction.getStyle();
  	}
  
  	public String getText() {
  		return fOpenAction.getText();
  	}
  
  	public String getToolTipText() {
  		return fOpenAction.getToolTipText();
  	}
  
  	public int hashCode() {
  		return fOpenAction.hashCode();
  	}
  
  	public boolean isChecked() {
  		return fOpenAction.isChecked();
  	}
  
  	public boolean isEnabled() {
  		return fOpenAction.isEnabled();
  	}
  
  	public boolean isHandled() {
  		return fOpenAction.isHandled();
  	}
  
  	public void removePropertyChangeListener(IPropertyChangeListener listener) {
  		fOpenAction.removePropertyChangeListener(listener);
  	}
  
  	public void selectionChanged(ISelection selection) {
  		fOpenAction.selectionChanged(selection);
  	}
  
  	public void selectionChanged(IStructuredSelection selection) {
  		fOpenAction.selectionChanged(selection);
  	}
  
  	public void selectionChanged(ITextSelection selection) {
  		fOpenAction.selectionChanged(selection);
  	}
  
  	public void selectionChanged(JavaTextSelection selection) {
  		fOpenAction.selectionChanged(selection);
  	}
  
  	public void selectionChanged(SelectionChangedEvent event) {
  		fOpenAction.selectionChanged(event);
  	}
  
  	public void setAccelerator(int keycode) {
  		fOpenAction.setAccelerator(keycode);
  	}
  
  	public void setActionDefinitionId(String id) {
  		fOpenAction.setActionDefinitionId(id);
  	}
  
  	public void setChecked(boolean checked) {
  		fOpenAction.setChecked(checked);
  	}
  
  	public void setDescription(String text) {
  		fOpenAction.setDescription(text);
  	}
  
  	public void setDisabledImageDescriptor(ImageDescriptor newImage) {
  		fOpenAction.setDisabledImageDescriptor(newImage);
  	}
  
  	public void setEnabled(boolean enabled) {
  		fOpenAction.setEnabled(enabled);
  	}
  
  	public void setHelpListener(HelpListener listener) {
  		fOpenAction.setHelpListener(listener);
  	}
  
  	public void setHoverImageDescriptor(ImageDescriptor newImage) {
  		fOpenAction.setHoverImageDescriptor(newImage);
  	}
  
  	public void setId(String id) {
  		fOpenAction.setId(id);
  	}
  
  	public void setImageDescriptor(ImageDescriptor newImage) {
  		fOpenAction.setImageDescriptor(newImage);
  	}
  
  	public void setMenuCreator(IMenuCreator creator) {
  		fOpenAction.setMenuCreator(creator);
  	}
  
  	public void setSpecialSelectionProvider(ISelectionProvider provider) {
  		fOpenAction.setSpecialSelectionProvider(provider);
  	}
  
  	public void setText(String text) {
  		fOpenAction.setText(text);
  	}
  
  	public void setToolTipText(String toolTipText) {
  		fOpenAction.setToolTipText(toolTipText);
  	}
  
  	public String toString() {
  		return fOpenAction.toString();
  	}
  
  	public void update(ISelection selection) {
  		fOpenAction.update(selection);
  	}
  
  	private void expand(Object target) {
  		if (! fOpenAction.isEnabled())
  			fViewer.setExpandedState(target, !fViewer.getExpandedState(target));
  	}
  
  	 
  }
  