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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the Qt Mobility Components.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** This file may be used under the terms of the GNU Lesser General Public
** License version 2.1 as published by the Free Software Foundation and
** appearing in the file LICENSE.LGPL included in the packaging of this
** file. Please review the following information to ensure the GNU Lesser
** General Public License version 2.1 requirements will be met:
** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
** This file is part of the Ovi services plugin for the Maps and
** Navigation API. The use of these services, whether by use of the
** plugin or by other means, is governed by the terms and conditions
** described by the file OVI_SERVICES_TERMS_AND_CONDITIONS.txt in
** this package, located in the directory containing the Ovi services
** plugin source code.
**
****************************************************************************/
#include "qplacejsoncategoriesparser.h"
#include <QtScript/QScriptEngine>
#include <QtScript/QScriptValue>
#include <QtScript/QScriptValueIterator>
#include <qmobilityglobal.h>
#if defined(QT_PLACES_LOGGING)
#include <QDebug>
#endif
static const char *place_categories_element = "categories";
static const char *place_category_element = "category";
static const char *place_category_name_element = "displayName";
static const char *place_category_systemname_element = "categorySystemName";
static const char *place_category_id_element = "name";
static const char *place_group_element = "group";
static const char *place_groupingcategory_element = "groupingCategory";
QTM_USE_NAMESPACE
QPlaceJSonCategoriesParser::QPlaceJSonCategoriesParser(QObject *parent) :
QObject(parent),
engine(NULL)
{
}
QPlaceJSonCategoriesParser::~QPlaceJSonCategoriesParser()
{
allCategories.clear();
}
QList<QPlaceCategory> QPlaceJSonCategoriesParser::resultCategories()
{
return allCategories;
}
void QPlaceJSonCategoriesParser::processData(const QString &data)
{
if (!engine) {
engine = new QScriptEngine(this);
}
allCategories.clear();
QScriptValue sv = engine->evaluate("(" + data + ")");
if (sv.isValid()) {
sv = sv.property(place_categories_element);
if (sv.isValid()) {
allCategories = processCategories(sv);
emit finished(NoError, QString());
}
} else {
emit finished(ParsingError, QString("JSON data are invalid"));
}
}
QList<QPlaceCategory> QPlaceJSonCategoriesParser::processCategories(const QScriptValue &categories)
{
QHash<QString, QPlaceCategory> results;
QPlaceCategory cat;
QScriptValue value = categories.property(place_category_element);
if (value.isValid()) {
if (value.isArray()) {
QScriptValueIterator it(value);
while (it.hasNext()) {
it.next();
// array contains count as last element
if (it.name() != "length") {
cat = processCategory(it.value());
if (!cat.isEmpty() && !results.contains(cat.categoryId())) {
results.insert(cat.categoryId(), cat);
}
}
}
} else {
cat = processCategory(value);
if (!cat.isEmpty() && !results.contains(cat.categoryId())) {
results.insert(cat.categoryId(), cat);
}
}
}
foreach (cat, processGroups(categories)) {
if (!results.contains(cat.categoryId())) {
results.insert(cat.categoryId(), cat);
}
}
return results.values();
}
QPlaceCategory QPlaceJSonCategoriesParser::processCategory(const QScriptValue &categoryValue)
{
QPlaceCategory category;
QScriptValue value = categoryValue.property(place_category_id_element);
if (value.isValid() && !value.toString().isEmpty()) {
category.setCategoryId(value.toString());
value = categoryValue.property(place_category_name_element);
if (value.isValid() && !value.toString().isEmpty()) {
category.setName(value.toString());
}
}
return category;
}
QList<QPlaceCategory> QPlaceJSonCategoriesParser::processGroups(const QScriptValue &categories)
{
QList<QPlaceCategory> results;
QScriptValue value = categories.property(place_group_element);
if (value.isValid()) {
if (value.isArray()) {
QScriptValueIterator it(value);
while (it.hasNext()) {
it.next();
// array contains count as last element
if (it.name() != "length") {
results.append(processGroup(it.value()));
}
}
} else {
results.append(processGroup(value));
}
}
return results;
}
QList<QPlaceCategory> QPlaceJSonCategoriesParser::processGroup(const QScriptValue &group)
{
QList<QPlaceCategory> results;
QPlaceCategory parentCategory;
QScriptValue value = group.property(place_groupingcategory_element);
if (value.isValid()) {
parentCategory = processCategory(value);
}
if (!parentCategory.isEmpty()) {
results = processCategories(group);
results.append(parentCategory);
}
return results;
}
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