refs #693, integrated GUI close dialog

* utility function in CGuiApplication containing the logic (dialog needed, ..)
* closeEvent function

src/blackcore/application.cpp

@@ -217,6 +217,8 @@ namespace BlackCore
                 CLogMessage::preformatted(m);
             }
 
+            // Settings are distributed via DBus. So only one application is responsible for saving. `enableLocalSave()` means
+            // "this is the application responsible for saving". If swiftgui requests a setting to be saved, it is sent to swiftcore and saved by swiftcore.
             CSettingsCache::instance()->enableLocalSave();
         }
 
@@ -344,6 +346,34 @@ namespace BlackCore
         return env;
     }
 
+    bool CApplication::hasUnsavedSettings() const
+    {
+        return !this->getAllUnsavedSettings().isEmpty();
+    }
+
+    void CApplication::setSettingsAutoSave(bool autoSave)
+    {
+        this->m_autoSaveSettings = autoSave;
+    }
+
+    QStringList CApplication::getAllUnsavedSettings() const
+    {
+        return CSettingsCache::instance()->getAllUnsavedKeys();
+    }
+
+    CStatusMessage CApplication::saveSettingsByKey(const QStringList &keys)
+    {
+        if (keys.isEmpty()) { return CStatusMessage(); }
+        if (this->supportsContexts())
+        {
+            return this->getIContextApplication()->saveSettingsByKey(keys);
+        }
+        else
+        {
+            return CSettingsCache::instance()->saveToStore(keys);
+        }
+    }
+
     QString CApplication::getInfoString(const QString &separator) const
     {
         QString str(CVersion::version());
@@ -604,7 +634,7 @@ namespace BlackCore
         CStatusMessage m;
         if (this->m_parsed)
         {
-            if (this->supportsContexts())
+            if (this->supportsContexts() && this->m_autoSaveSettings)
             {
                 // this will eventually also call saveToStore
                 m = this->getIContextApplication()->saveSettings();
@@ -698,9 +728,9 @@ namespace BlackCore
         return l;
     }
 
-// ---------------------------------------------------------------------------------
-// Parsing
-// ---------------------------------------------------------------------------------
+    // ---------------------------------------------------------------------------------
+    // Parsing
+    // ---------------------------------------------------------------------------------
 
     bool CApplication::addParserOption(const QCommandLineOption &option)
     {
@@ -824,9 +854,9 @@ namespace BlackCore
         printf("%s %s\n", qPrintable(QCoreApplication::applicationName()), qPrintable(QCoreApplication::applicationVersion()));
     }
 
-// ---------------------------------------------------------------------------------
-// Contexts
-// ---------------------------------------------------------------------------------
+    // ---------------------------------------------------------------------------------
+    // Contexts
+    // ---------------------------------------------------------------------------------
 
     bool CApplication::supportsContexts() const
     {
@@ -896,9 +926,9 @@ namespace BlackCore
         return this->m_coreFacade->getIContextSimulator();
     }
 
-// ---------------------------------------------------------------------------------
-// Setup
-// ---------------------------------------------------------------------------------
+    // ---------------------------------------------------------------------------------
+    // Setup
+    // ---------------------------------------------------------------------------------
 
     CUrlList CApplication::getVatsimMetarUrls() const
     {

src/blackcore/application.h

@@ -161,6 +161,18 @@ namespace BlackCore
         //! To string
         QString getInfoString(const QString &separator) const;
 
+        //! Unsaved settings
+        bool hasUnsavedSettings() const;
+
+        //! Automatically and always save settings
+        void setSettingsAutoSave(bool autoSave);
+
+        //! All unsave settings
+        QStringList getAllUnsavedSettings() const;
+
+        //! Save all settings
+        BlackMisc::CStatusMessage saveSettingsByKey(const QStringList &keys);
+
         //! Run event loop
         static int exec();
 
@@ -226,6 +238,8 @@ namespace BlackCore
         //! @{
 
         //! Supports contexts
+        //! \remark checks the real availability of the contexts, so it can happen that we want to use contexts, and they are not yet initialized (false here)
+        //! \sa m_useContexts we use or we will use contexts
         bool supportsContexts() const;
 
         //! Init the contexts part and start core facade
@@ -402,6 +416,8 @@ namespace BlackCore
         bool                                     m_signalStartup = true;   //!< signal startup automatically
         bool                                     m_devEnv = false;         //!< dev. environment
         bool                                     m_unitTest = false;       //!< is UNIT test
+        bool                                     m_autoSaveSettings = true;//!< automatically saving all settings
+
     };
 } // namespace