// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).

// All rights reserved.

// This component and the accompanying materials are made available

// under the terms of "Eclipse Public License v1.0"

// which accompanies this distribution, and is available

// at the URL "http://www.eclipse.org/legal/epl-v10.html".

//

// Initial Contributors:

// Nokia Corporation - initial contribution.

//

// Contributors:

//

// Description:

//

package com.symbian.smt.gui;

import org.eclipse.core.resources.IFile;

import org.eclipse.core.resources.IMarker;

import org.eclipse.core.resources.IProject;

import org.eclipse.core.resources.IWorkspaceRunnable;

import org.eclipse.core.resources.ProjectScope;

import org.eclipse.core.runtime.CoreException;

import org.eclipse.core.runtime.IProgressMonitor;

import org.eclipse.core.runtime.preferences.IScopeContext;

import org.eclipse.core.runtime.preferences.IEclipsePreferences.IPreferenceChangeListener;

import org.eclipse.core.runtime.preferences.IEclipsePreferences.PreferenceChangeEvent;

public class NodeListener {

	public NodeListener(final IProject project) {

		IScopeContext projectScope = new ProjectScope(project);

		// if name changed in properties

		projectScope.getNode(Activator.PLUGIN_ID).addPreferenceChangeListener(

				new IPreferenceChangeListener() {

					public void preferenceChange(PreferenceChangeEvent event) {

						String key = event.getKey();

						try {

							if (key.equals(PersistentSettingsEnums.OUTPUT_NAME

									.toString())

									&& event.getNewValue() != null) {

								final IFile oldfile = project

										.getFile((String) event.getOldValue());

								final IFile newfile = project

										.getFile((String) event.getNewValue());

								project.getWorkspace().run(

										new IWorkspaceRunnable() {

											public void run(

													IProgressMonitor monitor) {

												if (oldfile.exists()) {

													try {

														newfile

																.create(

																		oldfile

																				.getContents(true),

																		false,

																		null);

														newfile

																.setDerived(true);

														oldfile.delete(true,

																null);

													} catch (CoreException e) {

														Logger.log(e

																.getMessage(),

																e);

													}

												}

											}

										}, null);

							} else {

								Boolean alreadyHasMarker = false;

								IMarker[] mMarkers = project.findMarkers(

										IMarker.MESSAGE, false, 0);

								for (IMarker aMarker : mMarkers) {

									if (aMarker.getAttribute(IMarker.MESSAGE) != null) {

										if (aMarker.getAttribute(

												IMarker.MESSAGE).equals(

												"properties changed")) {

											alreadyHasMarker = true;

										}

									}

								}

								if (!alreadyHasMarker) {

									IMarker marker = project

											.createMarker(IMarker.MESSAGE);

									marker.setAttribute(IMarker.MESSAGE,

											"properties changed");

								}

							}

						} catch (CoreException e) {

							Logger.log(e.getMessage(), e);

						}

					}

				});

	}

}