Examples with JavaScriptEngine com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine used on opensource projects

Example 1 with JavaScriptEngine

use of com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine in project htmlunit by HtmlUnit.

the class HtmlPage method executeJavaScriptFunction.

private ScriptResult executeJavaScriptFunction(final Function function, final Scriptable thisObject, final Object[] args, final DomNode htmlElementScope) {
    final JavaScriptEngine engine = (JavaScriptEngine) getWebClient().getJavaScriptEngine();
    final Object result = engine.callFunction(this, function, thisObject, args, htmlElementScope);
    return new ScriptResult(result);
}

Example 2 with JavaScriptEngine

use of com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine in project htmlunit by HtmlUnit.

the class NamedAttrNodeMapImpl method fireEvent.

/**
 * <span style="color:red">INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.</span><br>
 *
 * Fires the event on the element. Nothing is done if JavaScript is disabled.
 * @param event the event to fire
 * @return the execution result, or {@code null} if nothing is executed
 */
public ScriptResult fireEvent(final Event event) {
    final WebClient client = getPage().getWebClient();
    if (!client.isJavaScriptEnabled()) {
        return null;
    }
    if (!handles(event)) {
        return null;
    }
    if (LOG.isDebugEnabled()) {
        LOG.debug("Firing " + event);
    }
    final EventTarget jsElt = getScriptableObject();
    final HtmlUnitContextFactory cf = ((JavaScriptEngine) client.getJavaScriptEngine()).getContextFactory();
    final ScriptResult result = cf.callSecured(cx -> jsElt.fireEvent(event), getHtmlPageOrNull());
    if (event.isAborted(result)) {
        preventDefault();
    }
    return result;
}

Example 3 with JavaScriptEngine

use of com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine in project htmlunit by HtmlUnit.

the class XMLHTTPRequest method setState.

/**
 * Sets the state as specified and invokes the state change handler if one has been set.
 * @param state the new state
 * @param context the context within which the state change handler is to be invoked;
 *     if {@code null}, the current thread's context is used
 */
private void setState(final int state, Context context) {
    state_ = state;
    if (stateChangeHandler_ != null && !openedMultipleTimes_) {
        final Scriptable scope = stateChangeHandler_.getParentScope();
        final JavaScriptEngine jsEngine = (JavaScriptEngine) containingPage_.getWebClient().getJavaScriptEngine();
        if (LOG.isDebugEnabled()) {
            LOG.debug("Calling onreadystatechange handler for state " + state);
        }
        final Object[] params = ArrayUtils.EMPTY_OBJECT_ARRAY;
        jsEngine.callFunction(containingPage_, stateChangeHandler_, scope, this, params);
        if (LOG.isDebugEnabled()) {
            if (context == null) {
                context = Context.getCurrentContext();
            }
            LOG.debug("onreadystatechange handler: " + context.decompileFunction(stateChangeHandler_, 4));
            LOG.debug("Calling onreadystatechange handler for state " + state + ". Done.");
        }
    }
}

Example 4 with JavaScriptEngine

use of com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine in project htmlunit by HtmlUnit.

the class XMLHTTPRequest method send.

/**
 * Sends an HTTP request to the server and receives a response.
 * @param body the body of the message being sent with the request.
 */
@JsxFunction
public void send(final Object body) {
    if (webRequest_ == null) {
        setState(STATE_DONE, Context.getCurrentContext());
        return;
    }
    if (sent_) {
        throw Context.reportRuntimeError("Unspecified error (request already sent).");
    }
    sent_ = true;
    prepareRequest(body);
    // quite strange but IE seems to fire state loading twice
    setState(STATE_OPENED, Context.getCurrentContext());
    final Window w = getWindow();
    final WebClient client = w.getWebWindow().getWebClient();
    final AjaxController ajaxController = client.getAjaxController();
    final HtmlPage page = (HtmlPage) w.getWebWindow().getEnclosedPage();
    final boolean synchron = ajaxController.processSynchron(page, webRequest_, async_);
    if (synchron) {
        doSend(Context.getCurrentContext());
    } else {
        // Create and start a thread in which to execute the request.
        final ContextFactory cf = ((JavaScriptEngine) client.getJavaScriptEngine()).getContextFactory();
        final ContextAction<Object> action = cx -> {
            // KEY_STARTING_SCOPE maintains a stack of scopes
            @SuppressWarnings("unchecked") Deque<Scriptable> stack = (Deque<Scriptable>) cx.getThreadLocal(JavaScriptEngine.KEY_STARTING_SCOPE);
            if (null == stack) {
                stack = new ArrayDeque<>();
                cx.putThreadLocal(JavaScriptEngine.KEY_STARTING_SCOPE, stack);
            }
            stack.push(w);
            try {
                doSend(cx);
            } finally {
                stack.pop();
            }
            return null;
        };
        final JavaScriptJob job = BackgroundJavaScriptFactory.theFactory().createJavascriptXMLHttpRequestJob(cf, action);
        if (LOG.isDebugEnabled()) {
            LOG.debug("Starting XMLHTTPRequest thread for asynchronous request");
        }
        jobID_ = w.getWebWindow().getJobManager().addJob(job, page);
    }
}

Example 5 with JavaScriptEngine

use of com.gargoylesoftware.htmlunit.javascript.JavaScriptEngine in project htmlunit by HtmlUnit.

the class HTMLCollectionFrames method postMessage.

/**
 * Posts a message.
 * @param message the object passed to the window
 * @param targetOrigin the origin this window must be for the event to be dispatched
 * @param transfer an optional sequence of Transferable objects
 * @see <a href="https://developer.mozilla.org/en-US/docs/Web/API/window.postMessage">MDN documentation</a>
 */
@JsxFunction
public void postMessage(final String message, final String targetOrigin, final Object transfer) {
    final WebWindow webWindow = getWebWindow();
    final Page page = webWindow.getEnclosedPage();
    final URL currentURL = page.getUrl();
    if (!"*".equals(targetOrigin) && !"/".equals(targetOrigin)) {
        final URL targetURL;
        try {
            targetURL = new URL(targetOrigin);
        } catch (final Exception e) {
            throw Context.throwAsScriptRuntimeEx(new Exception("SyntaxError: Failed to execute 'postMessage' on 'Window': Invalid target origin '" + targetOrigin + "' was specified (reason: " + e.getMessage() + "."));
        }
        if (getPort(targetURL) != getPort(currentURL)) {
            return;
        }
        if (!targetURL.getHost().equals(currentURL.getHost())) {
            return;
        }
        if (!targetURL.getProtocol().equals(currentURL.getProtocol())) {
            return;
        }
    }
    final MessageEvent event = new MessageEvent();
    final String origin = currentURL.getProtocol() + "://" + currentURL.getHost() + ':' + currentURL.getPort();
    event.initMessageEvent(Event.TYPE_MESSAGE, false, false, message, origin, "", this, transfer);
    event.setParentScope(this);
    event.setPrototype(getPrototype(event.getClass()));
    final JavaScriptEngine jsEngine = (JavaScriptEngine) webWindow.getWebClient().getJavaScriptEngine();
    final PostponedAction action = new PostponedAction(page, "Window.postMessage") {

        @Override
        public void execute() throws Exception {
            final ContextAction<Object> contextAction = cx -> dispatchEvent(event);
            final ContextFactory cf = jsEngine.getContextFactory();
            cf.call(contextAction);
        }
    };
    jsEngine.addPostponedAction(action);
}