/**
 * Attaches a visual (GUI) debugger to the specified client.
 * @param client the client to which the visual debugger is to be attached
 * @see <a href="http://www.mozilla.org/rhino/debugger.html">Mozilla Rhino Debugger Documentation</a>
 */
public static void attachVisualDebugger(final WebClient client) {
    final ScopeProvider sp = null;
    final HtmlUnitContextFactory cf = ((JavaScriptEngine) client.getJavaScriptEngine()).getContextFactory();
    final Main main = Main.mainEmbedded(cf, sp, "HtmlUnit JavaScript Debugger");
    main.getDebugFrame().setExtendedState(Frame.MAXIMIZED_BOTH);

    final SourceProvider sourceProvider = new SourceProvider() {
        @Override
        public String getSource(final DebuggableScript script) {
            String sourceName = script.getSourceName();
            if (sourceName.endsWith("(eval)") || sourceName.endsWith("(Function)")) {
                return null; // script is result of eval call. Rhino already knows the source and we don't
            }
            if (sourceName.startsWith("script in ")) {
                sourceName = StringUtils.substringBetween(sourceName, "script in ", " from");
                for (final WebWindow ww : client.getWebWindows()) {
                    final WebResponse wr = ww.getEnclosedPage().getWebResponse();
                    if (sourceName.equals(wr.getWebRequest().getUrl().toString())) {
                        return wr.getContentAsString();
                    }
                }
            }
            return null;
        }
    };
    main.setSourceProvider(sourceProvider);
}
 

/**
 * {@inheritDoc}
 */
@Override
public DebugFrame getFrame(final Context cx, final DebuggableScript functionOrScript) {
    return new DebugFrameImpl(functionOrScript);
}
 

/** {@inheritDoc} */
@Override
public void handleCompilationDone(final Context cx, final DebuggableScript functionOrScript, final String source) {
    // Empty.
}
 

/** {@inheritDoc} */
@Override
public DebugFrame getFrame(final Context cx, final DebuggableScript fnOrScript) {
    return new DebugFrameAdapter();
}
 

/**
 * {@inheritDoc}
 */
@Override
public DebugFrame getFrame(final Context cx, final DebuggableScript functionOrScript) {
    return new DebugFrameImpl(functionOrScript);
}
 

/** {@inheritDoc} */
@Override
public void handleCompilationDone(final Context cx, final DebuggableScript functionOrScript, final String source) {
    // Empty.
}
 

/** {@inheritDoc} */
@Override
public DebugFrame getFrame(final Context cx, final DebuggableScript fnOrScript) {
    return new DebugFrameAdapter();
}
 

public CallStackFrame(JavaScriptDebugger owner, DebuggableScript fnOrScript) {
    this.owner = owner;
    this.fnOrScript = fnOrScript;
}
 

public void handleCompilationDone(Context cx, DebuggableScript fnOrScript, String source) {
}
 

public DebugFrame getFrame(Context cx, DebuggableScript fnOrScript) {
    return new CallStackFrame(this,fnOrScript);
}
 

/**
 * Creates a new debug frame.
 *
 * @param functionOrScript the function or script to which this frame corresponds
 */
public DebugFrameImpl(final DebuggableScript functionOrScript) {
    functionOrScript_ = functionOrScript;
}
 

/**
 * Creates a new debug frame.
 *
 * @param functionOrScript the function or script to which this frame corresponds
 */
public DebugFrameImpl(final DebuggableScript functionOrScript) {
    functionOrScript_ = functionOrScript;
}