/*
 * Copyright (c) 2004 Christopher Lenz and others
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Common Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/cpl-v10.html
 * 
 * Contributors:
 *     Christopher Lenz - initial implementation
 * 
 * $Id: HTMLPreviewPage.java,v 1.1 2004-09-02 18:13:31 jsurfer Exp $
 */

package net.sourceforge.phpeclipse.html.ui.internal.preview;

import java.net.URL;

import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.browser.LocationAdapter;
import org.eclipse.swt.browser.LocationEvent;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.part.Page;
import org.eclipse.ui.texteditor.IUpdate;

import net.sourceforge.phpeclipse.ui.views.preview.IBrowserPreviewPage;

/**
 * Provides a HTML preview page based on the SWT browser control.
 */
public class HTMLPreviewPage extends Page
	implements IBrowserPreviewPage, IUpdate {

	// Instance Variables ------------------------------------------------------

	/** The browser widget. */
	private Browser browser;

	/** The URL of the resource to preview. */
	private URL location;

	// Constructors ------------------------------------------------------------

	/**
	 * Constructor.
	 * 
	 * @param location the URL of the resource to preview
	 */
	public HTMLPreviewPage(URL location) {
		this.location = location;
	}

	// IPage Implementation ----------------------------------------------------

	/* 
	 * @see org.eclipse.ui.part.IPage#createControl(Composite)
	 */
	public void createControl(Composite parent) {
		browser = new Browser(parent, SWT.NONE);
		browser.setLayout(new FillLayout());
		browser.setUrl(location.toString());
		browser.addLocationListener(new LocationAdapter() {
			public void changing(LocationEvent event) {
				if (event.location != null) {
					event.doit = false;
				}
			}
		});
	}

	/* 
	 * @see org.eclipse.ui.part.IPage#getControl()
	 */
	public Control getControl() {
		return browser;
	}

	/* 
	 * @see org.eclipse.ui.part.IPage#setFocus()
	 */
	public void setFocus() {
		browser.setFocus();
	}

	// IUpdate Implementation --------------------------------------------------

	/* 
	 * @see IUpdate#update()
	 */
	public void update() {
		browser.refresh();
	}

}