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/*
* Copyright (C) 2013-2014 Canonical Ltd.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 3 as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* Authors:
* Iain Lane <iain.lane@canonical.com>
*
*/
#include "timezonelocationmodel.h"
#include <glib.h>
#include <glib-object.h>
#include <QDebug>
TimeZoneLocationModel::TimeZoneLocationModel(QObject *parent):
QAbstractTableModel(parent),
modelUpdating(false),
m_cancellable(nullptr)
{
}
void TimeZoneLocationModel::setModel(const QList<GeonamesCity *> &locations)
{
beginResetModel();
Q_FOREACH(GeonamesCity *city, m_locations) {
geonames_city_free(city);
}
m_locations = locations;
endResetModel();
}
int TimeZoneLocationModel::rowCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return m_locations.count();
}
int TimeZoneLocationModel::columnCount(const QModelIndex &parent) const
{
if (parent.isValid())
return 0;
return 3; //TZ, City, Country
}
QVariant TimeZoneLocationModel::data(const QModelIndex &index, int role) const
{
if (index.row() >= m_locations.count() ||
index.row() < 0)
return QVariant();
GeonamesCity *city = m_locations[index.row()];
switch (role) {
case Qt::DisplayRole:
return QVariant(QString("%1, %2, %3").arg(geonames_city_get_name(city))
.arg(geonames_city_get_state(city))
.arg(geonames_city_get_country(city)));
break;
case SimpleRole:
return QVariant(QString("%1, %2").arg(geonames_city_get_name(city))
.arg(geonames_city_get_country(city)));
break;
case TimeZoneRole:
return geonames_city_get_timezone(city);
break;
case CountryRole:
return geonames_city_get_country(city);
break;
case CityRole:
return geonames_city_get_name(city);
break;
default:
return QVariant();
break;
}
throw "Unreachable code";
}
QHash<int, QByteArray> TimeZoneLocationModel::roleNames() const
{
QHash<int, QByteArray> m_roleNames;
m_roleNames[Qt::DisplayRole] = "displayName";
m_roleNames[TimeZoneRole] = "timeZone";
m_roleNames[CityRole] = "city";
m_roleNames[CountryRole] = "country";
return m_roleNames;
}
void TimeZoneLocationModel::filterFinished(GObject *source_object,
GAsyncResult *res,
gpointer user_data)
{
Q_UNUSED(source_object);
g_autofree gint *cities = nullptr;
guint cities_len = 0;
g_autoptr(GError) error = nullptr;
cities = geonames_query_cities_finish(res, &cities_len, &error);
if (error) {
if (!g_error_matches(error, G_IO_ERROR, G_IO_ERROR_CANCELLED)) {
TimeZoneLocationModel *model = static_cast<TimeZoneLocationModel *>(user_data);
g_clear_object(&model->m_cancellable);
qWarning() << "Could not filter timezones:" << error->message;
}
return;
}
QList<GeonamesCity *> locations;
for (guint i = 0; i < cities_len; ++i) {
GeonamesCity *city = geonames_get_city(cities[i]);
if (city) {
locations.append(city);
}
}
TimeZoneLocationModel *model = static_cast<TimeZoneLocationModel *>(user_data);
g_clear_object(&model->m_cancellable);
model->setModel(locations);
model->modelUpdating = false;
Q_EMIT model->filterComplete();
}
void TimeZoneLocationModel::filter(const QString& pattern)
{
modelUpdating = true;
Q_EMIT filterBegin();
if (m_cancellable) {
g_cancellable_cancel(m_cancellable);
g_clear_object(&m_cancellable);
}
setModel(QList<GeonamesCity *>());
if (pattern.isEmpty()) {
modelUpdating = false;
Q_EMIT filterComplete();
return;
}
m_cancellable = g_cancellable_new();
geonames_query_cities(pattern.toUtf8().data(),
GEONAMES_QUERY_DEFAULT,
m_cancellable,
filterFinished,
this);
}
TimeZoneLocationModel::~TimeZoneLocationModel()
{
if (m_cancellable) {
g_cancellable_cancel(m_cancellable);
g_clear_object(&m_cancellable);
}
Q_FOREACH(GeonamesCity *city, m_locations) {
geonames_city_free(city);
}
}
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