Do not show desktop-only options on mobile systems

client/gui/InterfaceObjectConfigurable.cpp

@@ -115,6 +115,11 @@ void InterfaceObjectConfigurable::build(const JsonNode &config)
 		addWidget(item["name"].String(), buildWidget(item));
 }
 
+void InterfaceObjectConfigurable::addConditional(const std::string & name, bool active)
+{
+	conditionals[name] = active;
+}
+
 void InterfaceObjectConfigurable::addWidget(const std::string & namePreferred, std::shared_ptr<CIntObject> widget)
 {
 	static const std::string unnamedObjectPrefix = "__widget_";
@@ -502,6 +507,21 @@ std::shared_ptr<CIntObject> InterfaceObjectConfigurable::buildLayout(const JsonN
 		if (item["type"].String().empty())
 			item["type"].String() = customType;
 
+		if (!item["created"].isNull())
+		{
+			std::string name = item["created"].String();
+
+			if (conditionals.count(name) != 0)
+			{
+				if (!conditionals.at(name))
+					continue;
+			}
+			else
+			{
+				logMod->warn("Unknown condition %s in widget!", name);
+			}
+		}
+
 		auto widget = buildWidget(item);
 
 		addWidget(item["name"].String(), widget);

client/gui/InterfaceObjectConfigurable.h

@@ -51,6 +51,8 @@ protected:
 	//must be called after adding callbacks
 	void build(const JsonNode & config);
 
+	void addConditional(const std::string & name, bool active);
+
 	void addWidget(const std::string & name, std::shared_ptr<CIntObject> widget);
 	
 	void addCallback(const std::string & callbackName, std::function<void(int)> callback);
@@ -110,5 +112,6 @@ private:
 	std::map<std::string, BuilderFunction> builders;
 	std::map<std::string, std::shared_ptr<CIntObject>> widgets;
 	std::map<std::string, std::function<void(int)>> callbacks;
+	std::map<std::string, bool> conditionals;
 	std::map<EShortcut, ShortcutState> shortcuts;
 };

client/windows/settings/GeneralOptionsTab.cpp

@@ -78,6 +78,13 @@ GeneralOptionsTab::GeneralOptionsTab()
 	OBJ_CONSTRUCTION_CAPTURING_ALL_NO_DISPOSE;
 	type |= REDRAW_PARENT;
 
+	addConditional("mobile", false);
+	addConditional("desktop", true);
+#ifdef VCMI_MOBILE
+	addConditional("mobile", true);
+	addConditional("desktop", false);
+#endif
+
 	const JsonNode config(ResourceID("config/widgets/settings/generalOptionsTab.json"));
 	addCallback("spellbookAnimationChanged", [](bool value)
 	{