forked from verdnatura/hedera-web
69 lines
1.3 KiB
JavaScript
69 lines
1.3 KiB
JavaScript
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/**
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* Handler for JSON rest requests.
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**/
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Vn.JsonRequest = new Class
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({
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initialize: function (methodName)
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{
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this._methodName = methodName;
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}
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,send: function (params, callback)
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{
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var url = 'rest.php?action='+ encodeURIComponent (this._methodName);
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var request = new XMLHttpRequest ();
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request.open ('post', url, true);
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request.setRequestHeader ('Content-Type',
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'application/x-www-form-urlencoded');
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request.onreadystatechange =
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this._onStateChange.bind (this, request, callback);
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request.send (Vn.Url.makeUri (params));
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}
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,_onStateChange: function (request, callback)
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{
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if (request.readyState !== 4)
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return;
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var jsData = null;
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var error = null;
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try {
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if (request.status !== 200)
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throw new Error (request.statusText);
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var json = JSON.parse (request.responseText);
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var jsData = json.data;
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var jsError = json.error;
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if (jsError)
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throw new Vn.Error (
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jsError.domain,
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jsError.code,
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jsError.message);
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}
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catch (e)
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{
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jsData = null;
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error = e;
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}
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if (callback)
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callback (this, jsData, error);
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}
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,sendForm: function (form, callback)
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{
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var params = {};
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var elements = form.elements;
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for (var i = 0; i < elements.length; i++)
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if (elements[i].name)
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params[elements[i].name] = elements[i].value;
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this.send (params, callback);
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}
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});
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