b38dea0597
Share Gaia assets and adapters, keep private profiles and development documents local, and update both public READMEs.
92 lines
2.7 KiB
JavaScript
Executable file
92 lines
2.7 KiB
JavaScript
Executable file
'use strict';
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if (!window.Rest) {
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window.Rest = (function() {
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function RestRequest(xhr) {
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var cancelled = false;
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this.cancel = function oncancel() {
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cancelled = true;
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window.setTimeout(xhr.abort.bind(xhr), 0);
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};
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this.isCancelled = function isCancelled() {
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return cancelled;
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};
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}
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function Rest() { }
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Rest.prototype = {
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get: function(uri, callback, pOptions) {
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var DEFAULT_TIMEOUT = 30000;
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var options = pOptions || {};
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var xhr = new XMLHttpRequest({
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mozSystem: true
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});
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var outReq = new RestRequest(xhr);
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xhr.open('GET', uri, true);
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var responseType = options.responseType || 'json';
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xhr.responseType = responseType;
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var responseProperty = responseType === 'xml' ?
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'responseXML' : 'response';
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xhr.timeout = options.operationsTimeout || DEFAULT_TIMEOUT;
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if (!xhr.timeout || xhr.timeout === DEFAULT_TIMEOUT &&
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(parent && parent.config && parent.config.operationsTimeout)) {
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xhr.timeout = parent.config.operationsTimeout;
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}
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if (options.requestHeaders) {
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for (var header in options.requestHeaders) {
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xhr.setRequestHeader(header, options.requestHeaders[header]);
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}
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}
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xhr.onload = function(e) {
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if (xhr.status === 200 || xhr.status === 400 || xhr.status === 0) {
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if (callback && typeof callback.success === 'function') {
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setTimeout(function() {
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callback.success(xhr[responseProperty]);
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},0);
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}
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}
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else {
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console.error('HTTP error executing GET. ',
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uri, ' Status: ', xhr.status);
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if (callback && typeof callback.error === 'function') {
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setTimeout(function errorHandler() {
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callback.error({ status: xhr.status });
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}, 0);
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}
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}
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}; // onload
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xhr.ontimeout = function(e) {
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console.error('Timeout!!! while HTTP GET: ', uri);
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if (callback && typeof callback.timeout === 'function') {
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setTimeout(callback.timeout, 0);
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}
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}; // ontimeout
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xhr.onerror = function(e) {
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console.error('Error while executing HTTP GET: ', uri,
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': ', e);
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if (callback && typeof callback.error === 'function' &&
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!outReq.isCancelled()) {
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setTimeout(function() {
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callback.error(e);
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},0);
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}
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}; // onerror
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xhr.send();
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return outReq;
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} // get
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}; // prototype
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return new Rest();
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})();
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}
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