JavaScript in the SWT Browser widget

At the Eclipse Summit Europe I listened to a talk of Boris Bokowski about Eclipse and the Web.

Among other things I learned that you can execute JavaScript directly on the SWT Browser Widget and I wanted to give a tiny example for this.

This Eclipse view will for example load my webpage and then execute a tiny JavaScript (alert(“1”);) in the browser.

package de.vogella.swtbrowser;

import org.eclipse.swt.SWT; 
import org.eclipse.swt.browser.Browser; 
import org.eclipse.swt.browser.ProgressEvent; 
import org.eclipse.swt.browser.ProgressListener; 
import org.eclipse.swt.widgets.Composite; 
import org.eclipse.ui.part.ViewPart;

public class View extends ViewPart {
	public static final String ID = "de.vogella.swtbrowser.view"; 
	public void createPartControl(Composite parent) { 
		final Browser b = new Browser(parent, SWT.NONE); 
		b.setUrl("www.vogella.de"); 
		b.addProgressListener(new ProgressListener() { 
			@Override public void completed(ProgressEvent event) { 
				System.out.println("Page loaded"); 
				System.out.println(b.execute("alert(\\"1\\");")); 
			} 
			@Override public void changed(ProgressEvent event) { } }); 
		}

/\*\* \* Passing the focus request to the viewer's control. \*/ 
	public void setFocus() { } 
}

Thanks to Boris for the great talk.