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.

[sourcecode language=”java”]

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() {
}
}

[/sourcecode]

Thanks to Boris for the great talk.