Examples with ReadyStateChangeHandler com.google.gwt.xhr.client.ReadyStateChangeHandler used on opensource projects

Example 1 with ReadyStateChangeHandler

use of com.google.gwt.xhr.client.ReadyStateChangeHandler in project libgdx by libgdx.

the class AssetDownloader method loadText.

public void loadText(String url, final AssetLoaderListener<String> listener) {
    XMLHttpRequest request = XMLHttpRequest.create();
    request.setOnReadyStateChange(new ReadyStateChangeHandler() {

        @Override
        public void onReadyStateChange(XMLHttpRequest xhr) {
            if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                if (xhr.getStatus() != 200) {
                    listener.onFailure();
                } else {
                    listener.onSuccess(xhr.getResponseText());
                }
            }
        }
    });
    setOnProgress(request, listener);
    request.open("GET", url);
    request.setRequestHeader("Content-Type", "text/plain; charset=utf-8");
    request.send();
}

Example 2 with ReadyStateChangeHandler

use of com.google.gwt.xhr.client.ReadyStateChangeHandler in project playn by threerings.

the class HtmlAssets method doXhr.

private void doXhr(final String fullPath, final Callback<String> callback) {
    XMLHttpRequest xhr = XMLHttpRequest.create();
    xhr.setOnReadyStateChange(new ReadyStateChangeHandler() {

        @Override
        public void onReadyStateChange(XMLHttpRequest xhr) {
            int readyState = xhr.getReadyState();
            if (readyState == XMLHttpRequest.DONE) {
                int status = xhr.getStatus();
                // status code 0 will be returned for non-http requests, e.g. file://
                if (status != 0 && (status < 200 || status >= 400)) {
                    PlayN.log().error("xhr::onReadyStateChange[" + fullPath + "](readyState = " + readyState + "; status = " + status + ")");
                    callback.onFailure(new RuntimeException("Error getting " + fullPath + " : " + xhr.getStatusText()));
                } else {
                    if (LOG_XHR_SUCCESS) {
                        PlayN.log().debug("xhr::onReadyStateChange[" + fullPath + "](readyState = " + readyState + "; status = " + status + ")");
                    }
                    // http://code.google.com/p/google-web-toolkit/issues/detail?id=6562
                    try {
                        callback.onSuccess(xhr.getResponseText());
                    } catch (JavaScriptException e) {
                        if (GWT.isProdMode()) {
                            throw e;
                        } else {
                            JavaScriptException materialized = new JavaScriptException(e.getName(), e.getDescription());
                            materialized.setStackTrace(e.getStackTrace());
                            throw materialized;
                        }
                    }
                }
            }
        }
    });
    if (LOG_XHR_SUCCESS) {
        PlayN.log().debug("xhr.open('GET', '" + fullPath + "')...");
    }
    xhr.open("GET", fullPath);
    if (LOG_XHR_SUCCESS) {
        PlayN.log().debug("xhr.send()...");
    }
    xhr.send();
}

Example 3 with ReadyStateChangeHandler

use of com.google.gwt.xhr.client.ReadyStateChangeHandler in project libgdx by libgdx.

the class AssetDownloader method loadBinary.

public void loadBinary(final String url, final AssetLoaderListener<Blob> listener) {
    XMLHttpRequest request = XMLHttpRequest.create();
    request.setOnReadyStateChange(new ReadyStateChangeHandler() {

        @Override
        public void onReadyStateChange(XMLHttpRequest xhr) {
            if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                if (xhr.getStatus() != 200) {
                    listener.onFailure();
                } else {
                    Int8Array data = TypedArrays.createInt8Array(xhr.getResponseArrayBuffer());
                    listener.onSuccess(new Blob(data));
                }
            }
        }
    });
    setOnProgress(request, listener);
    request.open("GET", url);
    request.setResponseType(ResponseType.ArrayBuffer);
    request.send();
}

Example 4 with ReadyStateChangeHandler

use of com.google.gwt.xhr.client.ReadyStateChangeHandler in project playn by threerings.

the class HtmlNet method execute.

@Override
protected void execute(final BuilderImpl req, final Callback<Response> callback) {
    try {
        XMLHttpRequest xhr = XMLHttpRequest.create();
        xhr.open(req.method(), req.url);
        for (Header header : req.headers) {
            xhr.setRequestHeader(header.name, header.value);
        }
        xhr.setOnReadyStateChange(new ReadyStateChangeHandler() {

            @Override
            public void onReadyStateChange(final XMLHttpRequest xhr) {
                if (xhr.getReadyState() == XMLHttpRequest.DONE) {
                    callback.onSuccess(new StringResponse(xhr.getStatus(), xhr.getResponseText()) {

                        @Override
                        protected Map<String, List<String>> extractHeaders() {
                            Map<String, List<String>> headers = new HashMap<String, List<String>>();
                            String block = xhr.getAllResponseHeaders();
                            for (String line : block.split("\r\n")) {
                                int cidx = line.indexOf(":");
                                if (cidx > 0) {
                                    String name = line.substring(0, cidx);
                                    List<String> values = headers.get(name);
                                    if (values == null)
                                        headers.put(name, values = new ArrayList<String>());
                                    values.add(line.substring(cidx + 1).trim());
                                }
                            }
                            return headers;
                        }

                        @Override
                        public String header(String name) {
                            // in those cases; yay web!
                            return xhr.getResponseHeader(name);
                        }

                        @Override
                        public List<String> headers(String name) {
                            // if we were able to parse the headers ourselves, use those, but if not (due
                            // perhaps to bugs, etc.) then fall back to using getResponseHeader
                            List<String> values = super.headers(name);
                            if (!values.isEmpty())
                                return values;
                            String value = xhr.getResponseHeader(name);
                            return (value == null) ? values : Collections.singletonList(value);
                        }
                    });
                }
            }
        });
        if (req.isPost()) {
            if (req.payloadBytes != null) {
                throw new UnsupportedOperationException("Raw bytes not currently supported in HTML5.");
            }
            xhr.setRequestHeader("Content-Type", req.contentType());
            xhr.send(req.payloadString);
        } else {
            xhr.send();
        }
    } catch (Exception e) {
        callback.onFailure(e);
    }
}