JavascriptExec.java Source code

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/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

/*
 * Browser example snippet: modify DOM (executing javascript)
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.1
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.browser.Browser;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;

public class JavascriptExec {
    public static void main(String[] args) {
        final String html = "<html><title>Snippet</title><body><p id='myid'>Best Friends</p><p id='myid2'>Cat and Dog</p></body></html>";
        Display display = new Display();
        final Shell shell = new Shell(display);
        shell.setLayout(new FillLayout());
        final Browser browser = new Browser(shell, SWT.BORDER);
        Composite comp = new Composite(shell, SWT.NONE);
        comp.setLayout(new FillLayout(SWT.VERTICAL));
        final Text text = new Text(comp, SWT.MULTI);
        text.setText("var newNode = document.createElement('P'); \r\n"
                + "var text = document.createTextNode('At least when I am around');\r\n"
                + "newNode.appendChild(text);\r\n" + "document.getElementById('myid').appendChild(newNode);\r\n"
                + "\r\n" + "document.bgColor='yellow';");
        final Button button = new Button(comp, SWT.PUSH);
        button.setText("Execute Script");
        button.addListener(SWT.Selection, new Listener() {
            public void handleEvent(Event event) {
                boolean result = browser.execute(text.getText());
                if (!result) {
                    /* Script may fail or may not be supported on certain platforms. */
                    System.out.println("Script was not executed.");
                }
            }
        });
        browser.setText(html);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}