Add latest changes from gitlab-org/gitlab@master

2 files changed, 17 insertions, 1 deletions

diff --git a/app/assets/javascripts/content_editor/components/top_toolbar.vue b/app/assets/javascripts/content_editor/components/top_toolbar.vue
index d3363ce092b..398a9610fb5 100644
--- a/app/assets/javascripts/content_editor/components/top_toolbar.vue
+++ b/app/assets/javascripts/content_editor/components/top_toolbar.vue
@@ -123,5 +123,14 @@ export default {
       :tiptap-editor="contentEditor.tiptapEditor"
       @execute="trackToolbarControlExecution"
     />
+    <toolbar-button
+      data-testid="horizontal-rule"
+      content-type="horizontalRule"
+      icon-name="dash"
+      editor-command="setHorizontalRule"
+      :label="__('Add a horizontal rule')"
+      :tiptap-editor="contentEditor.tiptapEditor"
+      @execute="trackToolbarControlExecution"
+    />
   </div>
 </template>
diff --git a/app/assets/javascripts/content_editor/extensions/horizontal_rule.js b/app/assets/javascripts/content_editor/extensions/horizontal_rule.js
index dcc59476518..c287938af5c 100644
--- a/app/assets/javascripts/content_editor/extensions/horizontal_rule.js
+++ b/app/assets/javascripts/content_editor/extensions/horizontal_rule.js
@@ -1,5 +1,12 @@
+import { nodeInputRule } from '@tiptap/core';
 import { HorizontalRule } from '@tiptap/extension-horizontal-rule';
 import { defaultMarkdownSerializer } from 'prosemirror-markdown/src/to_markdown';
 
-export const tiptapExtension = HorizontalRule;
+export const hrInputRuleRegExp = /^---$/;
+
+export const tiptapExtension = HorizontalRule.extend({
+  addInputRules() {
+    return [nodeInputRule(hrInputRuleRegExp, this.type)];
+  },
+});
 export const serializer = defaultMarkdownSerializer.nodes.horizontal_rule;