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/****************************************************************************
**
** Copyright (C) 2019 Luxoft Sweden AB
** Copyright (C) 2018 Pelagicore AG
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Neptune 3 IVI UI.
**
** $QT_BEGIN_LICENSE:GPL-QTAS$
** Commercial License Usage
** Licensees holding valid commercial Qt Automotive Suite licenses may use
** this file in accordance with the commercial license agreement provided
** with the Software or, alternatively, in accordance with the terms
** contained in a written agreement between you and The Qt Company. For
** licensing terms and conditions see https://www.qt.io/terms-conditions.
** For further information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
** SPDX-License-Identifier: GPL-3.0
**
****************************************************************************/
.pragma library
.import shared.utils 1.0 as Utils
var request = new XMLHttpRequest()
var errorCounter = 0
var errorFunc = 0
// Will be called when the error is not responding after a few tries
function setErrorFunction(func) {
errorFunc = func
}
function serverCall(url, data, dataReadyFunction, xhr) {
var i = 0
for (var key in data)
{
if (i === 0) {
url += "?" + key + "=" + data[key];
} else {
url += "&" + key+ "=" + data[key];
}
i++
}
// when no xhr is defined use the global one and reuse it
if (xhr === undefined) {
xhr = new XMLHttpRequest()
}
console.log(Utils.Logging.sysui, "HTTP GET to " + url);
if (xhr.readyState !== 0) {
xhr.abort();
}
xhr.open("GET", url);
xhr.onreadystatechange = function() {
if (xhr.readyState === XMLHttpRequest.DONE) {
if (xhr.responseText !== "") {
errorCounter = 0
var data = JSON.parse(xhr.responseText);
return dataReadyFunction(data)
} else {
console.log(Utils.Logging.sysui, "JSONBackend: " + xhr.status + xhr.statusText)
errorCounter++
if (errorCounter >= 3 && errorFunc) {
errorFunc()
}
return dataReadyFunction(0)
}
}
}
xhr.send();
}
function abortableServerCall(url, data, dataReadyFunction) {
serverCall(url,data,dataReadyFunction,request)
}
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