Dropdown: support .dropdown-item wrapped in <li> tags (#33634)

Co-authored-by: XhmikosR <xhmikosr@gmail.com>
twbs · Apr 21, 2021 · 2cbb0a9 · 2cbb0a9
1 parent 2e7141f
commit 2cbb0a9
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Showing 2 changed files with 28 additions and 1 deletion.
diff --git a/js/src/tab.js b/js/src/tab.js
@@ -161,7 +161,12 @@ class Tab extends BaseComponent {
       element.classList.add(CLASS_NAME_SHOW)
     }
 
-    if (element.parentNode && element.parentNode.classList.contains(CLASS_NAME_DROPDOWN_MENU)) {
+    let parent = element.parentNode
+    if (parent && parent.nodeName === 'LI') {
+      parent = parent.parentNode
+    }
+
+    if (parent && parent.classList.contains(CLASS_NAME_DROPDOWN_MENU)) {
       const dropdownElement = element.closest(SELECTOR_DROPDOWN)
 
       if (dropdownElement) {

diff --git a/js/tests/unit/tab.spec.js b/js/tests/unit/tab.spec.js
@@ -515,6 +515,28 @@ describe('Tab', () => {
       expect(fixtureEl.querySelector('#nav2 .dropdown-item').classList.contains('active')).toEqual(false)
     })
 
+    it('should support li > .dropdown-item', () => {
+      fixtureEl.innerHTML = [
+        '<ul class="nav nav-tabs">',
+        '  <li class="nav-item"><a class="nav-link active" href="#home" data-bs-toggle="tab">Home</a></li>',
+        '  <li class="nav-item"><a class="nav-link" href="#profile" data-bs-toggle="tab">Profile</a></li>',
+        '  <li class="nav-item dropdown">',
+        '    <a class="nav-link dropdown-toggle" data-bs-toggle="dropdown" href="#">Dropdown</a>',
+        '    <ul class="dropdown-menu">',
+        '      <li><a class="dropdown-item" href="#dropdown1" id="dropdown1-tab" data-bs-toggle="tab">@fat</a></li>',
+        '      <li><a class="dropdown-item" href="#dropdown2" id="dropdown2-tab" data-bs-toggle="tab">@mdo</a></li>',
+        '    </ul>',
+        '  </li>',
+        '</ul>'
+      ].join('')
+
+      const firstDropItem = fixtureEl.querySelector('.dropdown-item')
+
+      firstDropItem.click()
+      expect(firstDropItem.classList.contains('active')).toEqual(true)
+      expect(fixtureEl.querySelector('.nav-link').classList.contains('active')).toEqual(false)
+    })
+
     it('should handle nested tabs', done => {
       fixtureEl.innerHTML = [
         '<nav class="nav nav-tabs" role="tablist">',