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e4cf5e0 Sep 5, 2012
Romain Pokrzywka Add JSONListModel utility
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52 lines (41 sloc) 1.34 KB
/* JSONListModel - a QML ListModel with JSON and JSONPath support
*
* Copyright (c) 2012 Romain Pokrzywka (KDAB) (romain@kdab.com)
* Licensed under the MIT licence (http://opensource.org/licenses/mit-license.php)
*/
import QtQuick 1.1
import "jsonpath.js" as JSONPath
Item {
property string source: ""
property string json: ""
property string query: ""
property ListModel model : ListModel { id: jsonModel }
property alias count: jsonModel.count
onSourceChanged: {
var xhr = new XMLHttpRequest;
xhr.open("GET", source);
xhr.onreadystatechange = function() {
if (xhr.readyState == XMLHttpRequest.DONE)
json = xhr.responseText;
}
xhr.send();
}
onJsonChanged: updateJSONModel()
onQueryChanged: updateJSONModel()
function updateJSONModel() {
jsonModel.clear();
if ( json === "" )
return;
var objectArray = parseJSONString(json, query);
for ( var key in objectArray ) {
var jo = objectArray[key];
jsonModel.append( jo );
}
}
function parseJSONString(jsonString, jsonPathQuery) {
var objectArray = JSON.parse(jsonString);
if ( jsonPathQuery !== "" )
objectArray = JSONPath.jsonPath(objectArray, jsonPathQuery);
return objectArray;
}
}