/*******************************************************************************
 * Copyright (c) 2012 Google, Inc 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:
 * 	   Sergey Prigogin (Google) - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.internal.ui.preferences;

import org.eclipse.core.resources.IProject;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.preferences.IWorkbenchPreferenceContainer;

import org.eclipse.cdt.internal.ui.dialogs.StatusUtil;

public abstract class ConfigurationBlockPropertyAndPreferencePage extends PropertyAndPreferencePage {
	private OptionsConfigurationBlock fConfigurationBlock;

	public ConfigurationBlockPropertyAndPreferencePage() {
		super();
	}

	protected abstract OptionsConfigurationBlock createConfigurationBlock(IWorkbenchPreferenceContainer container);

	protected abstract String getHelpId();

	@Override
	public void createControl(Composite parent) {
		IWorkbenchPreferenceContainer container= (IWorkbenchPreferenceContainer) getContainer();
		fConfigurationBlock= createConfigurationBlock(container);
		super.createControl(parent);
		PlatformUI.getWorkbench().getHelpSystem().setHelp(getControl(), getHelpId());
	}

	@Override
	protected Control createPreferenceContent(Composite composite) {
		return fConfigurationBlock.createContents(composite);
	}

	@Override
	protected void enableProjectSpecificSettings(boolean useProjectSpecificSettings) {
		super.enableProjectSpecificSettings(useProjectSpecificSettings);
		if (fConfigurationBlock != null) {
			fConfigurationBlock.useProjectSpecificSettings(useProjectSpecificSettings);
		}
	}

	@Override
	public boolean performOk() {
		if (fConfigurationBlock != null) {
			return fConfigurationBlock.performOk();
		}
		return true;
	}

	@Override
	protected void performDefaults() {
		super.performDefaults();
		if (fConfigurationBlock != null) {
			fConfigurationBlock.performDefaults();
		}
	}

	@Override
	public void dispose() {
		if (fConfigurationBlock != null) {
			fConfigurationBlock.dispose();
		}
		super.dispose();
	}

	public void statusChanged(IStatus status) {
		setValid(!status.matches(IStatus.ERROR));
		StatusUtil.applyToStatusLine(this, status);
	}

	@Override
	public void performApply() {
		if (fConfigurationBlock != null) {
			fConfigurationBlock.performApply();
		}
	}

	@Override
	protected boolean hasProjectSpecificOptions(IProject project) {
		return fConfigurationBlock.hasProjectSpecificOptions(project);
	}
}