Add StringTableNameMap.h with 2312 name-to-ID entries for static mode fallback

Minecraft.Client/RmlManager.cpp

@@ -1,5 +1,18 @@
 #include "RmlManager.h"
 
+#pragma push_macro("byte")
+#pragma push_macro("GetNextSibling")
+#pragma push_macro("GetFirstChild")
+#undef byte
+#undef GetNextSibling
+#undef GetFirstChild
+
+#include <RmlUi/Core/ElementText.h>
+
+#pragma pop_macro("GetFirstChild")
+#pragma pop_macro("GetNextSibling")
+#pragma pop_macro("byte")
+
 extern ID3D11Device* g_pd3dDevice;
 extern ID3D11DeviceContext* g_pImmediateContext;
 extern ID3D11RenderTargetView* g_pRenderTargetView;
@@ -190,4 +203,38 @@ void RmlManager::UpdateDpRatio()
 		dp_ratio = 3.0f;
 
 	m_context->SetDensityIndependentPixelRatio(dp_ratio);
+}
+
+static void ReTranslateElement(Rml::Element* elem, Rml::SystemInterface* system_if)
+{
+	Rml::ElementText* text_elem = rmlui_dynamic_cast<Rml::ElementText*>(elem);
+	if (text_elem)
+	{
+		const Rml::Variant* src = elem->GetAttribute("data-rml-source");
+		if (src)
+		{
+			Rml::String original = src->Get<Rml::String>();
+			Rml::String translated;
+			system_if->TranslateString(translated, original);
+			if (translated != text_elem->GetText())
+				text_elem->SetText(translated);
+		}
+	}
+	for (int i = 0; i < elem->GetNumChildren(true); i++)
+		ReTranslateElement(elem->GetChild(i), system_if);
+}
+
+void RmlManager::OnLanguageChanged()
+{
+	if (!m_initialised || !m_context)
+		return;
+
+	app.DebugPrintf("[RmlManager] Re-translating all documents\n");
+
+	for (int i = 0; i < m_context->GetNumDocuments(); i++)
+	{
+		Rml::ElementDocument* doc = m_context->GetDocument(i);
+		if (doc)
+			ReTranslateElement(doc, m_system_interface.get());
+	}
 }