Get version XML and store latest version as application property

interface/CMakeLists.txt

@@ -60,6 +60,7 @@ find_package(Qt5OpenGL REQUIRED)
 find_package(Qt5Svg REQUIRED)
 find_package(Qt5WebKit REQUIRED)
 find_package(Qt5WebKitWidgets REQUIRED)
+find_package(Qt5Xml REQUIRED)
 
 if (APPLE)
   set(MACOSX_BUNDLE_BUNDLE_NAME Interface)
@@ -136,7 +137,7 @@ if (LIBOVR_FOUND AND NOT DISABLE_LIBOVR)
     target_link_libraries(${TARGET_NAME} ${LIBOVR_LIBRARIES})
 endif (LIBOVR_FOUND AND NOT DISABLE_LIBOVR)
 
-qt5_use_modules(${TARGET_NAME} Core Gui Multimedia Network OpenGL Script Svg WebKit WebKitWidgets)
+qt5_use_modules(${TARGET_NAME} Core Gui Multimedia Network OpenGL Script Svg WebKit WebKitWidgets Xml)
 
 # include headers for interface and InterfaceConfig.
 include_directories(

interface/src/Application.cpp

@@ -27,6 +27,7 @@
 #include <QMenuBar>
 #include <QMouseEvent>
 #include <QNetworkAccessManager>
+#include <QNetworkReply>
 #include <QNetworkDiskCache>
 #include <QOpenGLFramebufferObject>
 #include <QWheelEvent>
@@ -37,6 +38,8 @@
 #include <QtDebug>
 #include <QFileDialog>
 #include <QDesktopServices>
+#include <QXmlStreamReader>
+#include <QXmlStreamAttributes>
 
 #include <AudioInjector.h>
 #include <NodeTypes.h>
@@ -192,6 +195,8 @@ Application::Application(int& argc, char** argv, timeval &startup_time) :
     setOrganizationName(applicationInfo.value("organizationName").toString());
     setOrganizationDomain(applicationInfo.value("organizationDomain").toString());
     
+    checkVersion();
+    
     qDebug("[VERSION] Build sequence: %s\n", applicationVersion().toStdString().c_str());
 
     _settings = new QSettings(this);
@@ -4536,3 +4541,39 @@ void Application::toggleLogDialog() {
         _logDialog->close();
     }
 }
+
+void Application::loadLatestVersionDetails() {
+    QUrl url("https://a-tower.below92.com/version.xml");
+    QNetworkAccessManager *downloadXML = new QNetworkAccessManager(this);
+    QNetworkRequest request(url);
+    connect(downloadXML, SIGNAL(finished(QNetworkReply*)), this, SLOT(parseVersionXml(QNetworkReply*)));
+    downloadXML->get(request);
+    
+}
+
+void Application::parseVersionXml(QNetworkReply *reply) {
+    QXmlStreamReader xml(reply);
+    while (!xml.atEnd() && !xml.hasError()) {
+        QXmlStreamReader::TokenType token = xml.readNext();
+        
+        if (token == QXmlStreamReader::StartElement) {
+            if (xml.name() == "Version") {
+                xml.readNext();
+                _latestVersion = xml.text().toString();
+                qDebug("################ Version found %s\n", _latestVersion.toStdString().c_str());
+            }
+        }
+        
+    }
+}
+
+void Application::checkVersion() {
+    loadLatestVersionDetails();
+    
+    // This is a very rudimentary check, if this version is not equal to latest then you need to get it
+    // unless you're coming from the future.
+    
+    //if (applicationVersion() != 0 && applicationVersion() != this->_latestVersion) {
+    
+    //}
+}

interface/src/Application.h

@@ -212,6 +212,11 @@ public:
     /// set a voxel which is to be rendered with a highlight
     void setHighlightVoxel(const VoxelDetail& highlightVoxel) { _highlightVoxel = highlightVoxel; }
     void setIsHighlightVoxel(bool isHighlightVoxel) { _isHighlightVoxel = isHighlightVoxel; }
+    
+    // Get XML with version information and parse it
+    // Display dialog when version is not the latest and allow for new version download from link
+    void loadLatestVersionDetails();
+    void checkVersion();
 
 public slots:
     void sendAvatarFaceVideoMessage(int frameCount, const QByteArray& data);
@@ -255,6 +260,8 @@ private slots:
     void restoreMirrorView();
     void shrinkMirrorView();
     void resetSensors();
+    
+    void parseVersionXml(QNetworkReply *reply);
 
 private:
     void resetCamerasOnResizeGL(Camera& camera, int width, int height);
@@ -512,6 +519,8 @@ private:
     QPointer<LogDialog> _logDialog;
 
     FileLogger* _logger;
+    
+    QString _latestVersion;
 };
 
 #endif /* defined(__interface__Application__) */