From 654b01af941ec620ca8a9b98be8542dda862d4a8 Mon Sep 17 00:00:00 2001
From: Aaron McCarthy <aaron.mccarthy@jollamobile.com>
Date: Thu, 17 Oct 2013 14:19:34 +1000
Subject: Save and restore the last known position.

Saves the last known location on destruction.

Change-Id: Id3c45bed4e94c9e44656d96a8dffc576c7e26a48
Reviewed-by: Alex Blasche <alexander.blasche@digia.com>
---
 .../qgeopositioninfosource_geocluemaster.cpp       | 28 +++++++++++++++++++++-
 1 file changed, 27 insertions(+), 1 deletion(-)

diff --git a/src/plugins/position/geoclue/qgeopositioninfosource_geocluemaster.cpp b/src/plugins/position/geoclue/qgeopositioninfosource_geocluemaster.cpp
index 995ffa38..1a062431 100644
--- a/src/plugins/position/geoclue/qgeopositioninfosource_geocluemaster.cpp
+++ b/src/plugins/position/geoclue/qgeopositioninfosource_geocluemaster.cpp
@@ -43,7 +43,10 @@
 
 #include "qgeopositioninfosource_geocluemaster_p.h"
 
-#include <QtCore>
+#include <QtCore/QDateTime>
+#include <QtCore/QFile>
+#include <QtCore/QSaveFile>
+#include <QtCore/QStandardPaths>
 
 #ifdef Q_LOCATION_GEOCLUE_DEBUG
 #include <QDebug>
@@ -127,6 +130,16 @@ QGeoPositionInfoSourceGeoclueMaster::QGeoPositionInfoSourceGeoclueMaster(QObject
     m_lastPositionIsFresh(false), m_lastVelocityIsFresh(false), m_lastVelocity(0),
     m_lastPositionFromSatellite(false), m_methods(AllPositioningMethods), m_running(false)
 {
+#ifndef QT_NO_DATASTREAM
+    // Load the last known location
+    QFile file(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) +
+               QStringLiteral("/qtposition-geoclue"));
+    if (file.open(QIODevice::ReadOnly)) {
+        QDataStream out(&file);
+        out >> m_lastPosition;
+    }
+#endif
+
     m_requestTimer.setSingleShot(true);
     QObject::connect(&m_requestTimer, SIGNAL(timeout()), this, SLOT(requestUpdateTimeout()));
     QObject::connect(&m_updateTimer, SIGNAL(timeout()), this, SLOT(startUpdatesTimeout()));
@@ -134,6 +147,19 @@ QGeoPositionInfoSourceGeoclueMaster::QGeoPositionInfoSourceGeoclueMaster(QObject
 
 QGeoPositionInfoSourceGeoclueMaster::~QGeoPositionInfoSourceGeoclueMaster()
 {
+#ifndef QT_NO_DATASTREAM
+    if (m_lastPosition.isValid()) {
+        QSaveFile file(QStandardPaths::writableLocation(QStandardPaths::GenericDataLocation) +
+                       QStringLiteral("/qtposition-geoclue"));
+        if (file.open(QIODevice::WriteOnly | QIODevice::Truncate)) {
+            QDataStream out(&file);
+            // Only save position and timestamp.
+            out << QGeoPositionInfo(m_lastPosition.coordinate(), m_lastPosition.timestamp());
+            file.commit();
+        }
+    }
+#endif
+
     if (m_pos)
         g_object_unref (m_pos);
     if (m_vel)
-- 
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