64 lines
2.7 KiB
TypeScript
64 lines
2.7 KiB
TypeScript
module Typertext.Transport {
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import HttpMethod = Typertext.Http.HttpMethod;
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import HttpUrl = Typertext.Http.HttpUrl;
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import HttpPostData = Typertext.Http.HttpPostData;
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import HttpResponseHandler = Typertext.Http.HttpResponseHandler;
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import HttpResponseStatus = Typertext.Http.HttpResponseStatus;
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import HttpResponse = Typertext.Http.HttpResponse;
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export class XHR extends GenericTransport {
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constructor(method:HttpMethod, request:HttpUrl, postData:HttpPostData = {}, callback:HttpResponseHandler = (c)=> null) {
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super(method, request, postData, callback);
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//Create a XHR
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var xhr = new XMLHttpRequest();
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//And let us know when it does something
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xhr.onreadystatechange = ()=> {
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//If the request is complete
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if (xhr.readyState == 4) {
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//Prepare a getter for the header
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var getHeader = (name:string):string => {
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return xhr.getResponseHeader(name);
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};
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//Check the status
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if (xhr.status == 200) {
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//And either succeed
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callback(new HttpResponse(HttpResponseStatus.success, getHeader, xhr.status, xhr.responseText));
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} else if (xhr.status >= 400 && xhr.status < 500) {
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//Or fail miserably
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callback(new HttpResponse(HttpResponseStatus.clientError, getHeader, xhr.status, xhr.responseText));
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} else if (xhr.status >= 500 && xhr.status < 600) {
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//Again
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callback(new HttpResponse(HttpResponseStatus.serverError, getHeader, xhr.status, xhr.responseText));
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} else {
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//And again
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callback(new HttpResponse(HttpResponseStatus.unknownError, getHeader, xhr.status, xhr.responseText));
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}
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}
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};
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//Or if it times out
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xhr.ontimeout = () => {
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//And make a big deal of the failing
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callback(new HttpResponse(HttpResponseStatus.timeout, (i:string)=>"", -1, ""));
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};
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//Now connect
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xhr.open(HttpMethod[method], request.ToString(), true);
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//And either send
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if (method == HttpMethod.GET) {
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//A get request
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xhr.send();
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return;
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}
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//Or set the content-type
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xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
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//And send the post-data to the server
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xhr.send(HttpUrl.UrlEncodeObject(postData));
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}
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}
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} |