From f2aadfefa283aafc88131c643b97acd28989ac20 Mon Sep 17 00:00:00 2001
From: Cochise César <cochisecesar@zoho.com>
Date: Mon, 10 Jan 2022 01:27:06 -0300
Subject: Implement XEP-0080: User Location

---
 src/base/QXmppGeolocItem.cpp | 202 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 202 insertions(+)
 create mode 100644 src/base/QXmppGeolocItem.cpp

(limited to 'src/base/QXmppGeolocItem.cpp')

diff --git a/src/base/QXmppGeolocItem.cpp b/src/base/QXmppGeolocItem.cpp
new file mode 100644
index 00000000..bef54b69
--- /dev/null
+++ b/src/base/QXmppGeolocItem.cpp
@@ -0,0 +1,202 @@
+// SPDX-FileCopyrightText: 2022 Cochise César <cochisecesar@zoho.com>
+//
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#include "QXmppGeolocItem.h"
+
+#include "QXmppConstants_p.h"
+#include "QXmppUtils.h"
+
+#include <QDomElement>
+#include <QXmlStreamWriter>
+
+/// \cond
+class QXmppGeolocItemPrivate : public QSharedData
+{
+public:
+    std::optional<double> accuracy;
+    QString country;
+    QString locality;
+    std::optional<double> latitude;
+    std::optional<double> longitude;
+};
+/// \endcond
+
+///
+/// \class QXmppGeolocItem
+///
+/// This class represents a PubSub item for \xep{0080, User Location}.
+///
+/// \since QXmpp 1.5
+///
+
+///
+/// Default constructor
+///
+QXmppGeolocItem::QXmppGeolocItem()
+    : d(new QXmppGeolocItemPrivate)
+{
+}
+
+/// Copy-constructor.
+QXmppGeolocItem::QXmppGeolocItem(const QXmppGeolocItem &other) = default;
+
+QXmppGeolocItem::~QXmppGeolocItem() = default;
+
+/// Assignment operator.
+QXmppGeolocItem &QXmppGeolocItem::operator=(const QXmppGeolocItem &other) = default;
+
+///
+/// Returns the horizontal GPS error in meters.
+///
+std::optional<double> QXmppGeolocItem::accuracy() const
+{
+    return d->accuracy;
+}
+
+///
+/// Sets the horizontal GPS error.
+///
+void QXmppGeolocItem::setAccuracy(std::optional<double> accuracy)
+{
+    d->accuracy = std::move(accuracy);
+}
+
+///
+/// Returns the country.
+///
+QString QXmppGeolocItem::country() const
+{
+    return d->country;
+}
+
+///
+/// Sets the country.
+///
+void QXmppGeolocItem::setCountry(QString country)
+{
+    d->country = std::move(country);
+}
+
+///
+/// Returns the latitude in decimal degrees.
+///
+std::optional<double> QXmppGeolocItem::latitude() const
+{
+    return d->latitude;
+}
+
+///
+/// Sets the latitude.
+///
+void QXmppGeolocItem::setLatitude(std::optional<double> lat)
+{
+    if (lat && (*lat > 90 || *lat < -90)) {
+        d->latitude.reset();
+        return;
+    }
+    d->latitude = std::move(lat);
+}
+
+///
+/// Returns the locality such as a town or a city.
+///
+QString QXmppGeolocItem::locality() const
+{
+    return d->locality;
+}
+
+///
+/// Sets the locality.
+///
+void QXmppGeolocItem::setLocality(QString locality)
+{
+    d->locality = std::move(locality);
+}
+
+///
+/// Returns the longitude in decimal degrees.
+///
+std::optional<double> QXmppGeolocItem::longitude() const
+{
+    return d->longitude;
+}
+
+///
+/// Sets the longitude.
+///
+void QXmppGeolocItem::setLongitude(std::optional<double> lon)
+{
+    if (lon && (*lon > 180 || *lon < -180)) {
+        d->longitude.reset();
+        return;
+    }
+    d->longitude = std::move(lon);
+}
+
+///
+/// Returns true, if the element is a valid \xep{0080}: User Location PubSub item.
+///
+bool QXmppGeolocItem::isItem(const QDomElement &itemElement)
+{
+    auto isPayloadValid = [](const QDomElement &payload) -> bool {
+        return payload.tagName() == QStringLiteral("geoloc") &&
+            payload.namespaceURI() == ns_geoloc;
+    };
+
+    return QXmppPubSubItem::isItem(itemElement, isPayloadValid);
+}
+
+/// \cond
+std::optional<double> parseOptDouble(const QDomElement &element)
+{
+    bool ok = false;
+    if (auto val = element.text().toDouble(&ok); ok) {
+        return val;
+    }
+    return {};
+}
+
+void QXmppGeolocItem::parsePayload(const QDomElement &tune)
+{
+    for (auto child = tune.firstChildElement(); !child.isNull(); child = child.nextSiblingElement()) {
+        const auto tagName = child.tagName();
+        if (tagName == QStringLiteral("accuracy")) {
+            d->accuracy = parseOptDouble(child);
+        } else if (tagName == QStringLiteral("country")) {
+            d->country = child.text();
+        } else if (tagName == QStringLiteral("lat")) {
+            setLatitude(parseOptDouble(child));
+        } else if (tagName == QStringLiteral("locality")) {
+            d->locality = child.text();
+        } else if (tagName == QStringLiteral("lon")) {
+            setLongitude(parseOptDouble(child));
+        }
+    }
+}
+
+auto writeTextEl(QXmlStreamWriter *writer, const QString &name, const std::optional<double> &val)
+{
+    if (val.has_value()) {
+        writer->writeTextElement(name, QString::number(*val));
+    }
+}
+auto writeTextEl(QXmlStreamWriter *writer, const QString &name, const QString &val)
+{
+    helperToXmlAddTextElement(writer, name, val);
+}
+
+void QXmppGeolocItem::serializePayload(QXmlStreamWriter *writer) const
+{
+    writer->writeStartElement(QStringLiteral("geoloc"));
+    writer->writeDefaultNamespace(ns_geoloc);
+
+    writeTextEl(writer, QStringLiteral("accuracy"), d->accuracy);
+    writeTextEl(writer, QStringLiteral("country"), d->country);
+    writeTextEl(writer, QStringLiteral("lat"), d->latitude);
+    writeTextEl(writer, QStringLiteral("locality"), d->locality);
+    writeTextEl(writer, QStringLiteral("lon"), d->longitude);
+
+    writer->writeEndElement();
+}
+/// \endcond
-- 
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