Snippet160.java Source code

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Here is the source code for Snippet160.java
Source

/*
 * Browser example snippet: query DOM node value
 *
 * For a list of all SWT example snippets see
 * http://dev.eclipse.org/viewcvs/index.cgi/%7Echeckout%7E/platform-swt-home/dev.html#snippets
 */
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.browser.StatusTextEvent;
import org.eclipse.swt.browser.StatusTextListener;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class Snippet160 {
    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.NONE);
        browser.addStatusTextListener(new StatusTextListener() {
            public void changed(StatusTextEvent event) {
                browser.setData("query", event.text);
            }
        });
        browser.addProgressListener(new ProgressListener() {
            public void changed(ProgressEvent event) {
            }

            public void completed(ProgressEvent event) {
                /*
                 * Use JavaScript to query the desired node content through the
                 * Document Object Model
                 * 
                 * Assign result to the window property status to pass the
                 * result to the StatusTextListener This trick is required since
                 * <code>execute</code> does not return the <code>String</code>
                 * directly.
                 */
                boolean result = browser
                        .execute("window.status=document.getElementById('myid').childNodes[0].nodeValue;");
                if (!result) {
                    /*
                     * Script may fail or may not be supported on certain
                     * platforms.
                     */
                    System.out.println("Script was not executed.");
                    return;
                }
                String value = (String) browser.getData("query");
                System.out.println("Node value: " + value);
            }
        });
        /* Load an HTML document */
        browser.setText(html);
        shell.open();
        while (!shell.isDisposed()) {
            if (!display.readAndDispatch())
                display.sleep();
        }
        display.dispose();
    }
}