change: put settings initialization in a separate function

Signed-off-by: flow <flowlnlnln@gmail.com>

launcher/BaseInstance.cpp

@@ -52,6 +52,7 @@ BaseInstance::BaseInstance(SettingsObjectPtr globalSettings, SettingsObjectPtr s
     : QObject()
 {
     m_settings = settings;
+    m_global_settings = globalSettings;
     m_rootDir = rootDir;
 
     m_settings->registerSetting("name", "Unnamed Instance");

launcher/BaseInstance.h

@@ -174,6 +174,11 @@ public:
      */
     virtual SettingsObjectPtr settings() const;
 
+    /*!
+     * \brief Loads instance settings if they're not already loaded.
+     */
+    virtual void loadSettingsIfNeeded() = 0;
+
     /// returns a valid update task
     virtual Task::Ptr createUpdateTask(Net::Mode mode) = 0;
 
@@ -285,7 +290,11 @@ protected slots:
 
 protected: /* data */
     QString m_rootDir;
+
     SettingsObjectPtr m_settings;
+    SettingsObjectWeakPtr m_global_settings;
+    bool m_settings_loaded = false;
+
     // InstanceFlags m_flags;
     bool m_isRunning = false;
     shared_qobject_ptr<LaunchTask> m_launchProcess;

launcher/NullInstance.h

@@ -15,6 +15,10 @@ public:
     void saveNow() override
     {
     }
+    void loadSettingsIfNeeded() override
+    {
+        m_settings_loaded = true;
+    }
     QString getStatusbarDescription() override
     {
         return tr("Unknown instance type");

launcher/minecraft/MinecraftInstance.cpp

@@ -115,6 +115,21 @@ private:
 MinecraftInstance::MinecraftInstance(SettingsObjectPtr globalSettings, SettingsObjectPtr settings, const QString &rootDir)
     : BaseInstance(globalSettings, settings, rootDir)
 {
+    loadSettingsIfNeeded();
+
+    m_components.reset(new PackProfile(this));
+}
+
+void MinecraftInstance::saveNow()
+{
+    m_components->saveNow();
+}
+
+void MinecraftInstance::loadSettingsIfNeeded()
+{
+    if (m_settings_loaded)
+        return;
+
     // Java Settings
     auto javaOverride = m_settings->registerSetting("OverrideJava", false);
     auto locationOverride = m_settings->registerSetting("OverrideJavaLocation", false);
@@ -124,6 +139,7 @@ MinecraftInstance::MinecraftInstance(SettingsObjectPtr globalSettings, SettingsO
     auto javaOrLocation = std::make_shared<OrSetting>("JavaOrLocationOverride", javaOverride, locationOverride);
     auto javaOrArgs = std::make_shared<OrSetting>("JavaOrArgsOverride", javaOverride, argsOverride);
 
+    if (auto globalSettings = m_global_settings.lock()) {
         m_settings->registerOverride(globalSettings->getSetting("JavaPath"), javaOrLocation);
         m_settings->registerOverride(globalSettings->getSetting("JvmArgs"), javaOrArgs);
         m_settings->registerOverride(globalSettings->getSetting("IgnoreJavaCompatibility"), javaOrLocation);
@@ -165,23 +181,19 @@ MinecraftInstance::MinecraftInstance(SettingsObjectPtr globalSettings, SettingsO
         m_settings->registerOverride(globalSettings->getSetting("ShowGameTime"), gameTimeOverride);
         m_settings->registerOverride(globalSettings->getSetting("RecordGameTime"), gameTimeOverride);
 
-    // Join server on launch, this does not have a global override
-    m_settings->registerSetting("JoinServerOnLaunch", false);
-    m_settings->registerSetting("JoinServerOnLaunchAddress", "");
-
         // Miscellaneous
         auto miscellaneousOverride = m_settings->registerSetting("OverrideMiscellaneous", false);
         m_settings->registerOverride(globalSettings->getSetting("CloseAfterLaunch"), miscellaneousOverride);
         m_settings->registerOverride(globalSettings->getSetting("QuitAfterGameStop"), miscellaneousOverride);
 
         m_settings->set("InstanceType", "OneSix");
-
-    m_components.reset(new PackProfile(this));
     }
 
-void MinecraftInstance::saveNow()
-{
-    m_components->saveNow();
+    // Join server on launch, this does not have a global override
+    m_settings->registerSetting("JoinServerOnLaunch", false);
+    m_settings->registerSetting("JoinServerOnLaunchAddress", "");
+
+    m_settings_loaded = true;
 }
 
 QString MinecraftInstance::typeName() const

launcher/minecraft/MinecraftInstance.h

@@ -20,6 +20,8 @@ public:
     virtual ~MinecraftInstance() {};
     virtual void saveNow() override;
 
+    void loadSettingsIfNeeded() override;
+
     // FIXME: remove
     QString typeName() const override;
     // FIXME: remove

launcher/settings/SettingsObject.h

@@ -25,6 +25,7 @@ class Setting;
 class SettingsObject;
 
 typedef std::shared_ptr<SettingsObject> SettingsObjectPtr;
+typedef std::weak_ptr<SettingsObject> SettingsObjectWeakPtr;
 
 /*!
  * \brief The SettingsObject handles communicating settings between the application and a