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

Example 1 with AbstractJavaScriptEngine

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

the class HtmlPage method loadExternalJavaScriptFile.

/**
 * <span style="color:red">INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.</span><br>
 *
 * @param srcAttribute the source attribute from the script tag
 * @param scriptCharset the charset from the script tag
 * @return the result of loading the specified external JavaScript file
 * @throws FailingHttpStatusCodeException if the request's status code indicates a request
 *         failure and the {@link WebClient} was configured to throw exceptions on failing
 *         HTTP status codes
 */
JavaScriptLoadResult loadExternalJavaScriptFile(final String srcAttribute, final Charset scriptCharset) throws FailingHttpStatusCodeException {
    final WebClient client = getWebClient();
    if (StringUtils.isBlank(srcAttribute) || !client.isJavaScriptEnabled()) {
        return JavaScriptLoadResult.NOOP;
    }
    final URL scriptURL;
    try {
        scriptURL = getFullyQualifiedUrl(srcAttribute);
        final String protocol = scriptURL.getProtocol();
        if ("javascript".equals(protocol)) {
            if (LOG.isInfoEnabled()) {
                LOG.info("Ignoring script src [" + srcAttribute + "]");
            }
            return JavaScriptLoadResult.NOOP;
        }
        if (!"http".equals(protocol) && !"https".equals(protocol) && !"data".equals(protocol) && !"file".equals(protocol)) {
            client.getJavaScriptErrorListener().malformedScriptURL(this, srcAttribute, new MalformedURLException("unknown protocol: '" + protocol + "'"));
            return JavaScriptLoadResult.NOOP;
        }
    } catch (final MalformedURLException e) {
        client.getJavaScriptErrorListener().malformedScriptURL(this, srcAttribute, e);
        return JavaScriptLoadResult.NOOP;
    }
    final Object script;
    try {
        script = loadJavaScriptFromUrl(scriptURL, scriptCharset);
    } catch (final IOException e) {
        client.getJavaScriptErrorListener().loadScriptError(this, scriptURL, e);
        return JavaScriptLoadResult.DOWNLOAD_ERROR;
    } catch (final FailingHttpStatusCodeException e) {
        if (e.getStatusCode() == HttpStatus.SC_NO_CONTENT) {
            return JavaScriptLoadResult.NO_CONTENT;
        }
        client.getJavaScriptErrorListener().loadScriptError(this, scriptURL, e);
        throw e;
    }
    if (script == null) {
        return JavaScriptLoadResult.COMPILATION_ERROR;
    }
    @SuppressWarnings("unchecked") final AbstractJavaScriptEngine<Object> engine = (AbstractJavaScriptEngine<Object>) client.getJavaScriptEngine();
    engine.execute(this, script);
    return JavaScriptLoadResult.SUCCESS;
}