1 files changed, 85 insertions, 0 deletions
diff --git a/sysui/Cloud/Store/JSONBackend.js b/sysui/Cloud/Store/JSONBackend.js
new file mode 100644
index 0000000..a1ba1b1
--- /dev/null
+++ b/sysui/Cloud/Store/JSONBackend.js
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Pelagicore AG
+** Contact: http://www.pelagicore.com/
+**
+** This file is part of Neptune IVI UI.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** Commercial License Usage
+** Licensees holding valid commercial Neptune IVI UI 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 Pelagicore. For licensing terms
+** and conditions see http://www.pelagicore.com.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPLv3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU General Public License version 3 requirements will be
+** met: http://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+.pragma library
+
+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("HTTP GET to " + url);
+    if (xhr.readyState != 0) {
+        xhr.abort();
+    }
+    xhr.open("GET", url);
+    xhr.onreadystatechange = function() {
+        if (xhr.readyState == XMLHttpRequest.DONE) {
+            //print(xhr.responseText);
+
+            if (xhr.responseText !== "") {
+                errorCounter = 0
+                var data = JSON.parse(xhr.responseText);
+                return dataReadyFunction(data)
+            } else {
+                print("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)
+}