Example usage for com.google.gwt.xhr.client XMLHttpRequest abort

Introduction

In this page you can find the example usage for com.google.gwt.xhr.client XMLHttpRequest abort.

Prototype

public abstract void abort();

Source Link

Document

Aborts the current request.

Usage

From source file:com.gwtpro.html5.fileapi.client.upload.UploadRequest.java

License:Apache License

/**
 * Cancels a pending request. If the request has already been canceled or if
 * it has timed out no action is taken./*from  ww  w.  j  a v  a  2  s .  c o m*/
 */
public void cancel() {
    if (this.xmlHttpRequest != null) {
        XMLHttpRequest xmlHttp = this.xmlHttpRequest;
        this.xmlHttpRequest = null;
        xmlHttp.clearOnReadyStateChange();
        xmlHttp.abort();
        if (this.timer != null) {
            this.timer.cancel();
        }
    }
}

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From source file:org.atmosphere.gwt.client.impl.HTTPRequestCometTransport.java

License:Apache License

@Override
public void connect(int connectionCount) {
    init();/*w w w  .  j a  v a 2s  .com*/
    xmlHttpRequest = XMLHttpRequest.create();
    try {
        xmlHttpRequest.open("GET", getUrl(connectionCount));
        xmlHttpRequest.setRequestHeader("Accept", "application/comet");
        xmlHttpRequest.setOnReadyStateChange(new ReadyStateChangeHandler() {
            @Override
            public void onReadyStateChange(XMLHttpRequest request) {
                if (!aborted) {
                    switch (request.getReadyState()) {
                    case XMLHttpRequest.LOADING:
                        onReceiving(request.getStatus(), request.getResponseText());
                        if (needPolling()) {
                            pollingTimer.scheduleRepeating(POLLING_INTERVAL);
                        }
                        break;
                    case XMLHttpRequest.DONE:
                        onLoaded(request.getStatus(), request.getResponseText());
                        pollingTimer.cancel();
                        break;
                    }
                } else {
                    request.clearOnReadyStateChange();
                    if (request.getReadyState() != XMLHttpRequest.DONE) {
                        request.abort();
                    }
                }
            }
        });
        xmlHttpRequest.send();
    } catch (JavaScriptException e) {
        if (xmlHttpRequest != null) {
            xmlHttpRequest.abort();
            xmlHttpRequest = null;
        }
        listener.onError(new RequestException(e.getMessage()), false);
    }
}

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From source file:thothbot.parallax.loader.shared.XHRLoader.java

License:Open Source License

protected void load() {
    final XMLHttpRequest request = XMLHttpRequest.create();
    request.open("GET", url);
    request.setResponseType(this.responseType);
    request.send(null);/*from  ww w  . j  a va 2  s.c o  m*/

    loadHandlers.add(modelLoadHandler);

    if (XHRLoader.loaderProgressHandler != null)
        XHRLoader.loaderProgressHandler.onProgressUpdate(loadHandlers.size());

    request.setOnReadyStateChange(new ReadyStateChangeHandler() {

        @Override
        public void onReadyStateChange(XMLHttpRequest xhr) {
            if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                if (xhr.getStatus() >= 400) {
                    Log.error("Error while loading file: " + url + ", status: " + xhr.getStatus());
                } else {
                    AbstractGeometry geometry = null;

                    if (xhr.getResponseType().equals("arraybuffer")) {
                        com.google.gwt.typedarrays.shared.ArrayBuffer origin = xhr.getResponseArrayBuffer();

                        geometry = parse(ArrayBuffer.copy(origin));
                    } else
                        geometry = parse(xhr.getResponseText());

                    modelLoadHandler.onModelLoaded(XHRLoader.this, geometry);
                }

                request.clearOnReadyStateChange();
                request.abort();

                loadHandlers.remove(modelLoadHandler);
                if (XHRLoader.loaderProgressHandler != null)
                    XHRLoader.loaderProgressHandler.onProgressUpdate(loadHandlers.size());
            }
        }
    });
}

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