magento#451 disabled sources tab content on manage_stock update

Author: AleksLi

app/code/Magento/InventoryCatalog/view/adminhtml/ui_component/product_form.xml

@@ -6,7 +6,7 @@
  */
 -->
 <form xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Ui:etc/ui_configuration.xsd">
-    <fieldset name="sources" sortOrder="5">
+    <fieldset name="sources" sortOrder="5" component="Magento_InventoryCatalog/js/form/components/fieldset/manage-stock">
         <settings>
             <label translate="true">Sources</label>
             <collapsible>true</collapsible>

app/code/Magento/InventoryCatalog/view/adminhtml/web/js/form/components/fieldset/manage-stock.js

@@ -0,0 +1,33 @@
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+
+/**
+ * @api
+ */
+define([
+    'Magento_Ui/js/form/components/fieldset'
+], function (Fieldset) {
+    'use strict';
+
+    return Fieldset.extend({
+        defaults: {
+            additionalClasses: {},
+            imports: {
+                onStockChange: '${ $.provider }:data.product.stock_data.manage_stock'
+            }
+        },
+
+        /**
+         * Disable all child elements if manage stock is zero
+         * @param manageStockValue
+         */
+        onStockChange: function(manageStockValue) {
+            if (manageStockValue === 0) {
+                this.delegate('disabled', true);
+            }
+        }
+
+    });
+});