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

Example 6 with PostponedAction

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

the class BaseFrameElement method loadSrc.

private void loadSrc() {
    loadSrcWhenAddedToPage_ = false;
    final String src = getSrcAttribute();
    // recreate a window if the old one was closed
    if (enclosedWindow_.isClosed()) {
        init();
    }
    final AbstractJavaScriptEngine<?> jsEngine = getPage().getWebClient().getJavaScriptEngine();
    // first evaluated and only loading, when any, should be postponed.
    if (jsEngine == null || !jsEngine.isScriptRunning() || src.startsWith(JavaScriptURLConnection.JAVASCRIPT_PREFIX)) {
        loadInnerPageIfPossible(src);
    } else {
        final Page pageInFrame = getEnclosedPage();
        final PostponedAction action = new PostponedAction(getPage(), "BaseFrame.loadSrc") {

            @Override
            public void execute() throws Exception {
                if (!src.isEmpty() && getSrcAttribute().equals(src)) {
                    loadInnerPage();
                }
            }

            @Override
            public boolean isStillAlive() {
                // skip if page in frame has already been changed
                return super.isStillAlive() && pageInFrame == getEnclosedPage();
            }
        };
        jsEngine.addPostponedAction(action);
    }
}

Example 7 with PostponedAction

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

the class BaseFrameElement method loadInnerPage.

/**
 * <span style="color:red">INTERNAL API - SUBJECT TO CHANGE AT ANY TIME - USE AT YOUR OWN RISK.</span><br>
 *
 * Called after the node for the {@code frame} or {@code iframe} has been added to the containing page.
 * The node needs to be added first to allow JavaScript in the frame to see the frame in the parent.
 * @throws FailingHttpStatusCodeException if the server returns a failing status code AND the property
 *      {@link com.gargoylesoftware.htmlunit.WebClientOptions#setThrowExceptionOnFailingStatusCode(boolean)} is
 *      set to true
 */
public void loadInnerPage() throws FailingHttpStatusCodeException {
    String source = getSrcAttribute();
    if (source.isEmpty()) {
        source = UrlUtils.ABOUT_BLANK;
    } else if (StringUtils.startsWithIgnoreCase(source, UrlUtils.ABOUT_SCHEME) && hasFeature(FRAME_LOCATION_ABOUT_BLANK_FOR_ABOUT_SCHEME)) {
        source = UrlUtils.ABOUT_BLANK;
    }
    loadInnerPageIfPossible(source);
    final Page enclosedPage = getEnclosedPage();
    if (enclosedPage != null && enclosedPage.isHtmlPage()) {
        final HtmlPage htmlPage = (HtmlPage) enclosedPage;
        final AbstractJavaScriptEngine<?> jsEngine = htmlPage.getWebClient().getJavaScriptEngine();
        if (jsEngine != null && jsEngine.isScriptRunning()) {
            final PostponedAction action = new PostponedAction(getPage(), "BaseFrame.loadInnerPage") {

                @Override
                public void execute() throws Exception {
                    htmlPage.setReadyState(READY_STATE_COMPLETE);
                }
            };
            jsEngine.addPostponedAction(action);
        } else {
            htmlPage.setReadyState(READY_STATE_COMPLETE);
        }
    }
}

Example 8 with PostponedAction

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

the class BaseFrameElement method removeAttribute.

@Override
public final void removeAttribute(final String attributeName) {
    super.removeAttribute(attributeName);
    // TODO find a better implementation without all the code duplication
    if (isAttachedToPage()) {
        loadSrcWhenAddedToPage_ = false;
        final String src = getSrcAttribute();
        final AbstractJavaScriptEngine<?> jsEngine = getPage().getWebClient().getJavaScriptEngine();
        // first evaluated and only loading, when any, should be postponed.
        if (jsEngine == null || !jsEngine.isScriptRunning()) {
            loadInnerPageIfPossible(src);
        } else {
            final Page pageInFrame = getEnclosedPage();
            final PostponedAction action = new PostponedAction(getPage(), "BaseFrame.removeAttribute") {

                @Override
                public void execute() throws Exception {
                    loadInnerPage();
                }

                @Override
                public boolean isStillAlive() {
                    // skip if page in frame has already been changed
                    return super.isStillAlive() && pageInFrame == getEnclosedPage();
                }
            };
            jsEngine.addPostponedAction(action);
        }
    } else {
        loadSrcWhenAddedToPage_ = true;
    }
}

Example 9 with PostponedAction

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

the class AudioContext method decodeAudioData.

/**
 * The decodeAudioData() method of the BaseAudioContext Interface is used to asynchronously
 * decode audio file data contained in an ArrayBuffer. In this case the ArrayBuffer is
 * loaded from XMLHttpRequest and FileReader.
 * The decoded AudioBuffer is resampled to the AudioContext's sampling rate,
 * then passed to a callback or promise.
 * @param buffer An ArrayBuffer containing the audio data to be decoded, usually grabbed
 * from XMLHttpRequest, WindowOrWorkerGlobalScope.fetch() or FileReader
 * @param success A callback function to be invoked when the decoding successfully finishes.
 * The single argument to this callback is an AudioBuffer representing the decodedData
 * (the decoded PCM audio data). Usually you'll want to put the decoded data into
 * an AudioBufferSourceNode, from which it can be played and manipulated how you want.
 * @param error An optional error callback, to be invoked if an error occurs
 * when the audio data is being decoded.
 * @return the promise or null
 */
@JsxFunction
public Object decodeAudioData(final NativeArrayBuffer buffer, final Function success, final Function error) {
    final Window window = getWindow();
    final HtmlPage owningPage = (HtmlPage) window.getDocument().getPage();
    final JavaScriptEngine jsEngine = (JavaScriptEngine) window.getWebWindow().getWebClient().getJavaScriptEngine();
    if (error != null) {
        jsEngine.addPostponedAction(new PostponedAction(owningPage, "AudioContext.decodeAudioData") {

            @Override
            public void execute() throws Exception {
                jsEngine.callFunction(owningPage, error, getParentScope(), AudioContext.this, new Object[] {});
            }
        });
        return null;
    }
    final Scriptable scope = ScriptableObject.getTopLevelScope(this);
    final LambdaConstructor ctor = (LambdaConstructor) getProperty(scope, "Promise");
    final LambdaFunction reject = (LambdaFunction) getProperty(ctor, "reject");
    return reject.call(Context.getCurrentContext(), this, ctor, new Object[] {});
}

Example 10 with PostponedAction

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

the class HtmlScript method setAttributeNS.

/**
 * If setting the <tt>src</tt> attribute, this method executes the new JavaScript if necessary
 * (behavior varies by browser version). {@inheritDoc}
 */
@Override
protected void setAttributeNS(final String namespaceURI, final String qualifiedName, final String attributeValue, final boolean notifyAttributeChangeListeners, final boolean notifyMutationObservers) {
    // special additional processing for the 'src'
    if (namespaceURI != null || !SRC_ATTRIBUTE.equals(qualifiedName)) {
        super.setAttributeNS(namespaceURI, qualifiedName, attributeValue, notifyAttributeChangeListeners, notifyMutationObservers);
        return;
    }
    // namespaceURI is always null here - we can call getAttribute directly
    final String oldValue = getAttribute(qualifiedName);
    super.setAttributeNS(null, qualifiedName, attributeValue, notifyAttributeChangeListeners, notifyMutationObservers);
    if (isAttachedToPage() && oldValue.isEmpty() && getFirstChild() == null) {
        final PostponedAction action = new PostponedAction(getPage(), "HtmlScript.setAttributeNS") {

            @Override
            public void execute() {
                ScriptElementSupport.executeScriptIfNeeded(HtmlScript.this, false, false);
            }
        };
        final AbstractJavaScriptEngine<?> engine = getPage().getWebClient().getJavaScriptEngine();
        engine.addPostponedAction(action);
    }
}