| /* |
| * Copyright 2007 Google Inc. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| * use this file except in compliance with the License. You may obtain a copy of |
| * the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations under |
| * the License. |
| */ |
| package com.google.gwt.user.client; |
| |
| /** |
| * This class allows you to make asynchronous HTTP requests to the originating |
| * server. |
| * |
| * @deprecated As of GWT 1.5, replaced by |
| * {@link com.google.gwt.http.client.RequestBuilder RequestBuilder}. |
| */ |
| @Deprecated |
| public class HTTPRequest { |
| |
| /** |
| * Makes an asynchronous HTTP GET to a remote server. |
| * |
| * @param url the absolute url to GET |
| * @param handler the response handler to be notified when either the request |
| * fails, or is completed successfully |
| * @return <code>false</code> if the invocation fails to issue |
| */ |
| public static boolean asyncGet(String url, ResponseTextHandler handler) { |
| return asyncGetImpl(null, null, url, handler); |
| } |
| |
| /** |
| * Makes an asynchronous HTTP GET to a remote server. |
| * |
| * @param url the absolute url to GET |
| * @param handler the response handler to be notified when either the request |
| * fails, or is completed successfully |
| * @return <code>false</code> if the invocation fails to issue |
| */ |
| public static boolean asyncGet(String user, String pwd, String url, |
| ResponseTextHandler handler) { |
| return asyncGetImpl(user, pwd, url, handler); |
| } |
| |
| /** |
| * Makes an asynchronous HTTP POST to a remote server. |
| * |
| * @param url the absolute url to which the POST data is delivered |
| * @param postData the data to post |
| * @param handler the response handler to be notified when either the request |
| * fails, or is completed successfully |
| * @return <code>false</code> if the invocation fails to issue |
| */ |
| public static boolean asyncPost(String url, String postData, |
| ResponseTextHandler handler) { |
| return asyncPostImpl(null, null, url, postData, handler); |
| } |
| |
| /** |
| * Makes an asynchronous HTTP POST to a remote server. |
| * |
| * @param url the absolute url to which the POST data is delivered |
| * @param postData the data to post |
| * @param handler the response handler to be notified when either the request |
| * fails, or is completed successfully |
| * @return <code>false</code> if the invocation fails to issue |
| */ |
| public static boolean asyncPost(String user, String pwd, String url, |
| String postData, ResponseTextHandler handler) { |
| return asyncPostImpl(user, pwd, url, postData, handler); |
| } |
| |
| private static native boolean asyncGetImpl(String user, String pwd, String url, |
| ResponseTextHandler handler) /*-{ |
| var xmlHttp = @com.google.gwt.xhr.client.XMLHttpRequest::create()(); |
| try { |
| xmlHttp.open("GET", url, true); |
| xmlHttp.setRequestHeader("Content-Type", "text/plain; charset=utf-8"); |
| xmlHttp.onreadystatechange = function() { |
| if (xmlHttp.readyState == 4) { |
| $wnd.setTimeout(function() { |
| xmlHttp.onreadystatechange = @com.google.gwt.user.client.impl.HTTPRequestImpl::nullFunc; |
| }, 0); |
| handler.@com.google.gwt.user.client.ResponseTextHandler::onCompletion(Ljava/lang/String;)(xmlHttp.responseText || ""); |
| } |
| }; |
| xmlHttp.send(''); |
| return true; |
| } catch (e) { |
| xmlHttp.onreadystatechange = @com.google.gwt.user.client.impl.HTTPRequestImpl::nullFunc; |
| return false; |
| } |
| }-*/; |
| |
| private static native boolean asyncPostImpl(String user, String pwd, String url, |
| String postData, ResponseTextHandler handler) /*-{ |
| var xmlHttp = @com.google.gwt.xhr.client.XMLHttpRequest::create()(); |
| try { |
| xmlHttp.open("POST", url, true); |
| xmlHttp.setRequestHeader("Content-Type", "text/plain; charset=utf-8"); |
| xmlHttp.onreadystatechange = function() { |
| if (xmlHttp.readyState == 4) { |
| $wnd.setTimeout(function() { |
| xmlHttp.onreadystatechange = @com.google.gwt.user.client.impl.HTTPRequestImpl::nullFunc; |
| }, 0); |
| handler.@com.google.gwt.user.client.ResponseTextHandler::onCompletion(Ljava/lang/String;)(xmlHttp.responseText || ""); |
| } |
| }; |
| xmlHttp.send(postData); |
| return true; |
| } |
| catch (e) { |
| xmlHttp.onreadystatechange = @com.google.gwt.user.client.impl.HTTPRequestImpl::nullFunc; |
| return false; |
| } |
| }-*/; |
| } |