1 files changed, 65 insertions, 31 deletions

diff --git a/js/dist/dom/selector-engine.js b/js/dist/dom/selector-engine.js
index 6b2297e35..1d260dce7 100644
--- a/js/dist/dom/selector-engine.js
+++ b/js/dist/dom/selector-engine.js
@@ -1,5 +1,5 @@
 /*!
-  * Bootstrap selector-engine.js v5.0.0-beta2 (https://getbootstrap.com/)
+  * Bootstrap selector-engine.js v5.1.0 (https://getbootstrap.com/)
   * Copyright 2011-2021 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
   */
@@ -11,44 +11,70 @@
 
   /**
    * --------------------------------------------------------------------------
-   * Bootstrap (v5.0.0-beta2): dom/selector-engine.js
+   * Bootstrap (v5.1.0): util/index.js
    * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
    * --------------------------------------------------------------------------
    */
 
-  /**
-   * ------------------------------------------------------------------------
-   * Constants
-   * ------------------------------------------------------------------------
-   */
-  var NODE_TEXT = 3;
-  var SelectorEngine = {
-    find: function find(selector, element) {
-      var _ref;
+  const isElement = obj => {
+    if (!obj || typeof obj !== 'object') {
+      return false;
+    }
 
-      if (element === void 0) {
-        element = document.documentElement;
-      }
+    if (typeof obj.jquery !== 'undefined') {
+      obj = obj[0];
+    }
+
+    return typeof obj.nodeType !== 'undefined';
+  };
+
+  const isVisible = element => {
+    if (!isElement(element) || element.getClientRects().length === 0) {
+      return false;
+    }
+
+    return getComputedStyle(element).getPropertyValue('visibility') === 'visible';
+  };
+
+  const isDisabled = element => {
+    if (!element || element.nodeType !== Node.ELEMENT_NODE) {
+      return true;
+    }
+
+    if (element.classList.contains('disabled')) {
+      return true;
+    }
 
-      return (_ref = []).concat.apply(_ref, Element.prototype.querySelectorAll.call(element, selector));
+    if (typeof element.disabled !== 'undefined') {
+      return element.disabled;
+    }
+
+    return element.hasAttribute('disabled') && element.getAttribute('disabled') !== 'false';
+  };
+
+  /**
+   * --------------------------------------------------------------------------
+   * Bootstrap (v5.1.0): dom/selector-engine.js
+   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)
+   * --------------------------------------------------------------------------
+   */
+  const NODE_TEXT = 3;
+  const SelectorEngine = {
+    find(selector, element = document.documentElement) {
+      return [].concat(...Element.prototype.querySelectorAll.call(element, selector));
     },
-    findOne: function findOne(selector, element) {
-      if (element === void 0) {
-        element = document.documentElement;
-      }
 
+    findOne(selector, element = document.documentElement) {
       return Element.prototype.querySelector.call(element, selector);
     },
-    children: function children(element, selector) {
-      var _ref2;
 
-      return (_ref2 = []).concat.apply(_ref2, element.children).filter(function (child) {
-        return child.matches(selector);
-      });
+    children(element, selector) {
+      return [].concat(...element.children).filter(child => child.matches(selector));
     },
-    parents: function parents(element, selector) {
-      var parents = [];
-      var ancestor = element.parentNode;
+
+    parents(element, selector) {
+      const parents = [];
+      let ancestor = element.parentNode;
 
       while (ancestor && ancestor.nodeType === Node.ELEMENT_NODE && ancestor.nodeType !== NODE_TEXT) {
         if (ancestor.matches(selector)) {
@@ -60,8 +86,9 @@
 
       return parents;
     },
-    prev: function prev(element, selector) {
-      var previous = element.previousElementSibling;
+
+    prev(element, selector) {
+      let previous = element.previousElementSibling;
 
       while (previous) {
         if (previous.matches(selector)) {
@@ -73,8 +100,9 @@
 
       return [];
     },
-    next: function next(element, selector) {
-      var next = element.nextElementSibling;
+
+    next(element, selector) {
+      let next = element.nextElementSibling;
 
       while (next) {
         if (next.matches(selector)) {
@@ -85,7 +113,13 @@
       }
 
       return [];
+    },
+
+    focusableChildren(element) {
+      const focusables = ['a', 'button', 'input', 'textarea', 'select', 'details', '[tabindex]', '[contenteditable="true"]'].map(selector => `${selector}:not([tabindex^="-"])`).join(', ');
+      return this.find(focusables, element).filter(el => !isDisabled(el) && isVisible(el));
     }
+
   };
 
   return SelectorEngine;