some improvements for the settings module

Source/SenseGloveSettings/Private/SenseGloveSettingsModule.cpp

@@ -36,6 +36,7 @@
 #include "SenseGloveSettingsModule.h"
 
 #include "ISettingsModule.h"
+#include "ISettingsSection.h"
 
 #include "SGLog/SGLog.h"
 #include "SGSettings/SGSettings.h"
@@ -53,14 +54,25 @@ void FSenseGloveSettingsModule::StartupModule()
     {
         SGLOG("Registering the SenseGlove settings manager through the Unreal Engine's Settings module...");
 
-        SettingModule->RegisterSettings(
-            "Project", "Plugins", "SenseGloveSettings",
-            LOCTEXT("RuntimeSettingsName", "SenseGlove"),
-            LOCTEXT("RuntimeSettingsDescription", "Configure the SenseGlove settings"),
-            GetMutableDefault<USGSettings>()
-            );
+        ISettingsSectionPtr SenseGloveSettingsSection{
+            SettingModule->RegisterSettings(
+                "Project", "Plugins", "SenseGloveSettings",
+                LOCTEXT("RuntimeSettingsName", "SenseGlove"),
+                LOCTEXT("RuntimeSettingsDescription", "Configure the SenseGlove settings"),
+                GetMutableDefault<USGSettings>()
+                )
+        };
 
-        SGLOG("Successfully registered the SenseGlove settings manager!");
+        if (SenseGloveSettingsSection.IsValid())
+        {
+            SenseGloveSettingsSection->OnModified().BindRaw(this, &FSenseGloveSettingsModule::OnSettingsSaved);
+
+            SGLOG("Successfully registered the SenseGlove settings manager!");
+        }
+        else
+        {
+            SGLOG_ERROR("Failed to register the SenseGlove settings manager!");
+        }
     }
     else
     {
@@ -99,4 +111,21 @@ void FSenseGloveSettingsModule::ShutdownModule()
     }
 }
 
+bool FSenseGloveSettingsModule::OnSettingsSaved() const
+{
+    USGSettings* Settings = GetMutableDefault<USGSettings>();
+    bool bResaveConfig = false;
+
+    /// TODO
+    /// Validate settings here in case of invalid values.
+    /// In that case, we have to set bResaveConfig to true.
+
+    if (bResaveConfig)
+    {
+        Settings->SaveConfig();
+    }
+
+    return true;
+}
+
 #undef LOCTEXT_NAMESPACE