BarebonesTest.java

package mulCal.gui;
import java.io.FileInputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.Reader;
import java.net.URL;
import java.net.URLConnection;
import java.awt.*;
import java.util.logging.*;

import javax.swing.*;

import org.w3c.dom.Document;
import org.w3c.dom.html2.HTMLElement;

import org.xml.sax.InputSource;
import org.lobobrowser.html.*;
import org.lobobrowser.html.gui.*;
import org.lobobrowser.html.parser.*;
import org.lobobrowser.html.test.*;

public class BarebonesTest {
	public static void main(String[] args) throws Exception {
		// Initialize logging so only Cobra warnings are seen.
		Logger.getLogger("org.lobobrowser")
			.setLevel(Level.WARNING);
		
		/*
		// Open a connection on the URL we want to render first.
		String uri = "http://lobobrowser.org/browser/home.jsp";
		URL url = new URL(uri);
		URLConnection connection = url.openConnection();
		InputStream in = connection.getInputStream();
		*/

	    // Open an input stream
		String uri = "assets/index.html";
		InputStream in = new FileInputStream (uri);

		// A Reader should be created with the correct charset,
		// which may be obtained from the Content-Type header
		// of an HTTP response.
		Reader reader = new InputStreamReader(in);

		// InputSourceImpl constructor with URI recommended
		// so the renderer can resolve page component URLs.
		InputSource is = new InputSourceImpl(reader, "file://" + uri);
		HtmlPanel htmlPanel = new HtmlPanel();
		UserAgentContext ucontext = new LocalUserAgentContext();
		HtmlRendererContext rendererContext = 
			new LocalHtmlRendererContext(htmlPanel, ucontext);
		
		// Set a preferred width for the HtmlPanel,
		// which will allow getPreferredSize() to
		// be calculated according to block content.
		// We do this here to illustrate the 
		// feature, but is generally not
		// recommended for performance reasons.
		htmlPanel.setPreferredSize(new Dimension(800, 600));
		
		// Note: This example does not perform incremental
		// rendering while loading the initial document.
		DocumentBuilderImpl builder = 
			new DocumentBuilderImpl(
				rendererContext.getUserAgentContext(), 
				rendererContext);
		
		Document document = builder.parse(is);
		in.close();

		// Set the document in the HtmlPanel. This method
		// schedules the document to be rendered in the
		// GUI thread.
		htmlPanel.setDocument(document, rendererContext);

		// Create a JFrame and add the HtmlPanel to it.
		final JFrame frame = new JFrame();
		frame.getContentPane().add(htmlPanel);
		
		// We pack the JFrame to demonstrate the
		// validity of HtmlPanel's preferred size.
		// Normally you would want to set a specific
		// JFrame size instead.
		
		// pack() should be called in the GUI dispatch
		// thread since the document is scheduled to
		// be rendered in that thread, and is required
		// for the preferred size determination.
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				frame.pack();
				frame.setVisible(true);
			}
		});
	}

	private static class LocalUserAgentContext 
		extends SimpleUserAgentContext {
		// Override methods from SimpleUserAgentContext to
		// provide more accurate information about application.
		
		public LocalUserAgentContext() {
		}

		public String getAppMinorVersion() {
			return "0";
		}

		public String getAppName() {
			return "BarebonesTest";
		}

		public String getAppVersion() {
			return "1";
		}

		public String getUserAgent() {
			return "Mozilla/4.0 (compatible;) CobraTest/1.0";
		}
	}

	private static class LocalHtmlRendererContext 
		extends SimpleHtmlRendererContext {
		// Override methods from SimpleHtmlRendererContext 
		// to provide browser functionality to the renderer.
		
		public LocalHtmlRendererContext(HtmlPanel contextComponent, 
			UserAgentContext ucontext) {
			super(contextComponent, ucontext);
		}

		public void linkClicked(HTMLElement linkNode, 
			URL url, String target) {
			super.linkClicked(linkNode, url, target);
			// This may be removed: 
			System.out.println("## Link clicked: " + linkNode);
		}

		public HtmlRendererContext open(URL url, 
			String windowName, String windowFeatures, 
			boolean replace) {
			// This is called on window.open().
			HtmlPanel newPanel = new HtmlPanel();
			JFrame frame = new JFrame();
			frame.setSize(600, 400);
			frame.getContentPane().add(newPanel);
			HtmlRendererContext newCtx = new LocalHtmlRendererContext(newPanel, this.getUserAgentContext());
			newCtx.navigate(url, "_this");
			return newCtx;
		}
	}
}