ENGCOM-8152: ui select list visible even though it is disabled #27896

 - Merge Pull Request #27896 from Mohamed-Asar/magento2:ui-select-list-visible-bug
 - Merged commits:
   1. 6ba9fff
   2. 2e75bae
   3. 66ee024

Author: magento-engcom-team

app/code/Magento/Ui/view/base/web/js/form/element/ui-select.js

@@ -668,7 +668,7 @@ define([
          * @returns {Object} Chainable
          */
         toggleListVisible: function () {
-            this.listVisible(!this.listVisible());
+            this.listVisible(!this.disabled() && !this.listVisible());
 
             return this;
         },

dev/tests/js/jasmine/tests/app/code/Magento/Ui/base/js/form/ui-select.test.js

@@ -246,6 +246,12 @@ define([
 
                 expect(type).toEqual('object');
             });
+            it('Must be false if "disabled" is true', function () {
+                obj.listVisible(false);
+                obj.disabled(true);
+                obj.toggleListVisible();
+                expect(obj.listVisible()).toEqual(false);
+            });
             it('Must be false if "listVisible" is true', function () {
                 obj.listVisible(true);
                 obj.toggleListVisible();