toolkit/javascript/d3/src/core/xhr.js
author Nicolas Sauret <nicolas.sauret@iri.centrepompidou.fr>
Thu, 10 Apr 2014 14:20:23 +0200
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add toolkit.html + démonstrateurs
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d3.xhr = function(url, mime, callback) {
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  var req = new XMLHttpRequest;
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  if (arguments.length < 3) callback = mime;
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  else if (mime && req.overrideMimeType) req.overrideMimeType(mime);
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  req.open("GET", url, true);
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  req.onreadystatechange = function() {
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    if (req.readyState === 4) callback(req.status < 300 ? req : null);
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  };
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  req.send(null);
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};