forked from sheetjs/docs.sheetjs.com
52 lines
1.7 KiB
JavaScript
52 lines
1.7 KiB
JavaScript
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/*! https://www.henryalgus.com/reading-binary-files-using-jquery-ajax/ */
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/**
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*
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* jquery.binarytransport.js
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*
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* @description. jQuery ajax transport for making binary data type requests.
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* @version 1.0
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* @author Henry Algus <henryalgus@gmail.com>
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*
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*/
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// use this transport for "binary" data type
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$.ajaxTransport("+binary", function(options, originalOptions, jqXHR){
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// check for conditions and support for blob / arraybuffer response type
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if (window.FormData && ((options.dataType && (options.dataType == 'binary')) || (options.data && ((window.ArrayBuffer && options.data instanceof ArrayBuffer) || (window.Blob && options.data instanceof Blob))))) {
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return {
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// create new XMLHttpRequest
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send: function(headers, callback){
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// setup all variables
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var xhr = new XMLHttpRequest(),
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url = options.url,
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type = options.type,
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async = options.async || true,
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// blob or arraybuffer. Default is blob
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dataType = options.responseType || "blob",
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data = options.data || null,
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username = options.username || null,
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password = options.password || null;
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xhr.addEventListener('load', function(){
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var data = {};
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data[options.dataType] = xhr.response;
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// make callback and send data
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callback(xhr.status, xhr.statusText, data, xhr.getAllResponseHeaders());
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});
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xhr.open(type, url, async, username, password);
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// setup custom headers
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for (var i in headers) {
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xhr.setRequestHeader(i, headers[i]);
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}
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xhr.responseType = dataType;
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xhr.send(data);
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},
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abort: function(){
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jqXHR.abort();
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}
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};
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}
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});
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