From 05078cf95bddd5cf4b287a74142ded349b0e4458 Mon Sep 17 00:00:00 2001
From: Pierre Baillargeon <Pierre.Baillargeon@Autodesk.com>
Date: Wed, 10 Apr 2024 13:59:54 -0400
Subject: [PATCH] EMSUSD-1187 disable root prim type UI

When there is no custom root prim name entered, disable the root prim
type drop-down button. Also, don't add the empty root prim name to the
available root prims.
---
 .../adsk/scripts/mayaUsdTranslatorExport.mel  | 22 ++++++++++++++++---
 1 file changed, 19 insertions(+), 3 deletions(-)

diff --git a/plugin/adsk/scripts/mayaUsdTranslatorExport.mel b/plugin/adsk/scripts/mayaUsdTranslatorExport.mel
index 09ee5d4e84..bb80aa63cb 100644
--- a/plugin/adsk/scripts/mayaUsdTranslatorExport.mel
+++ b/plugin/adsk/scripts/mayaUsdTranslatorExport.mel
@@ -249,22 +249,38 @@ global proc mayaUsdTranslatorExport_updateDefaultPrimList() {
 
 }
 
-global proc mayaUsdTranslatorExport_RootPrimCB() {
+proc updateDefaultPrimOptionMenu(string $rootPrim) {
     if (`optionMenuGrp -exists exportDefaultPrim` == 0){
         return;
     }
-    string $rootPrim = `textFieldGrp -q -text rootPrimField`;
     optionMenuGrp -edit -deleteAllItems exportDefaultPrim;
     string $menuName = `optionMenuGrp -q -fullPathName exportDefaultPrim`;
     menuItem -parent ($menuName + "|OptionMenu") -l `getMayaUsdString("kExportDefaultPrimNoneLbl")`;
-    menuItem -parent ($menuName + "|OptionMenu") -l $rootPrim;
     if(size($rootPrim) > 0){
+        menuItem -parent ($menuName + "|OptionMenu") -l $rootPrim;
         optionMenuGrp -e -select 2 exportDefaultPrim;
     } else {
         mayaUsdTranslatorExport_updateDefaultPrimList();
     }
 }
 
+proc updateRootPrimTypeOptionMenu(string $rootPrim) {
+    if (`optionMenuGrp -exists rootPrimTypePopup` == 0){
+        return;
+    }
+    if(size($rootPrim) > 0) {
+        optionMenuGrp -e -enable 1 rootPrimTypePopup;
+    } else {
+        optionMenuGrp -e -enable 0 rootPrimTypePopup;
+    }
+}
+
+global proc mayaUsdTranslatorExport_RootPrimCB() {
+    string $rootPrim = `textFieldGrp -q -text rootPrimField`;
+    updateDefaultPrimOptionMenu($rootPrim);
+    updateRootPrimTypeOptionMenu($rootPrim);
+}
+
 global proc mayaUsdTranslatorExport_AnimationCB() {
     if (`checkBoxGrp -exists animationCheckBox` == 0)
         return;