Issue # 3175963: Many changes to allow multilingual support and not to lose...

Issue # 3175963: Many changes to allow multilingual support and not to lose the translation changes after module upgrades

Closes #3175963

js/fluidui_load.js

@@ -8,26 +8,51 @@ let renderCounter = 0;
 
         const langCode = drupalSettings.path.currentLanguage;
 
-        fluid.uiOptions(".flc-prefsEditor-separatedPanel", {
-          auxiliarySchema: {
-            terms: {
-              "templatePrefix": modulePath + "/infusion/src/framework/preferences/html",
-              "messagePrefix": modulePath + "/infusion/src/framework/preferences/messages"
+        const translationsDir = drupalSettings.translationsDirectory;
+
+        if (translationsDir !== "") {
+          fluid.uiOptions(".flc-prefsEditor-separatedPanel", {
+            auxiliarySchema: {
+              terms: {
+                "templatePrefix": modulePath + "/infusion/src/framework/preferences/html",
+                "messagePrefix": translationsDir + langCode,
+              },
+              "fluid.prefs.tableOfContents": {
+                enactor: {
+                  "tocTemplate": modulePath + "/infusion/src/components/tableOfContents/html/TableOfContents.html",
+                  "tocMessage": modulePath + "/infusion/src/framework/preferences/messages/tableOfContents-enactor.json",
+                  ignoreForToC: {
+                    "overviewPanel": ".flc-overviewPanel"
+                  }
+                }
+              }
             },
-            "fluid.prefs.tableOfContents": {
-              enactor: {
-                "tocTemplate": modulePath + "/infusion/src/components/tableOfContents/html/TableOfContents.html",
-                "tocMessage": modulePath + "/infusion/src/framework/preferences/messages/tableOfContents-enactor.json",
-                ignoreForToC: {
-                  "overviewPanel": ".flc-overviewPanel"
+            prefsEditorLoader: {
+              lazyLoad: true
+            }
+          });
+        } else {
+          fluid.uiOptions(".flc-prefsEditor-separatedPanel", {
+            auxiliarySchema: {
+              terms: {
+                "templatePrefix": modulePath + "/infusion/src/framework/preferences/html",
+                "messagePrefix": modulePath + "/infusion/src/framework/preferences/messages/" + langCode,
+              },
+              "fluid.prefs.tableOfContents": {
+                enactor: {
+                  "tocTemplate": modulePath + "/infusion/src/components/tableOfContents/html/TableOfContents.html",
+                  "tocMessage": modulePath + "/infusion/src/framework/preferences/messages/tableOfContents-enactor.json",
+                  ignoreForToC: {
+                    "overviewPanel": ".flc-overviewPanel"
+                  }
                 }
               }
+            },
+            prefsEditorLoader: {
+              lazyLoad: true
             }
-          },
-          prefsEditorLoader: {
-            lazyLoad: true
-          }
-        });
+          });
+        }
 
         renderCounter++;
       }