From f3a94e1db40f08d2ebb91dfd7876b546b1322a8d Mon Sep 17 00:00:00 2001
From: Brian Hung <brianlhung@gmail.com>
Date: Tue, 8 Jun 2021 21:23:58 -0700
Subject: [PATCH] Add keyboard shortcuts to toggle superscript and subscript
 marks.

---
 packages/extension-subscript/src/subscript.ts     | 6 ++++++
 packages/extension-superscript/src/superscript.ts | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/packages/extension-subscript/src/subscript.ts b/packages/extension-subscript/src/subscript.ts
index 066362072..493391514 100644
--- a/packages/extension-subscript/src/subscript.ts
+++ b/packages/extension-subscript/src/subscript.ts
@@ -66,4 +66,10 @@ export const Subscript = Mark.create<SubscriptExtensionOptions>({
       },
     }
   },
+
+  addKeyboardShortcuts() {
+    return {
+      'Mod-,': () => this.editor.commands.toggleSubscript(),
+    }
+  },
 })
diff --git a/packages/extension-superscript/src/superscript.ts b/packages/extension-superscript/src/superscript.ts
index 26a348aae..efea644b9 100644
--- a/packages/extension-superscript/src/superscript.ts
+++ b/packages/extension-superscript/src/superscript.ts
@@ -66,4 +66,10 @@ export const Superscript = Mark.create<SuperscriptExtensionOptions>({
       },
     }
   },
+
+  addKeyboardShortcuts() {
+    return {
+      'Mod-.': () => this.editor.commands.toggleSuperscript(),
+    }
+  },
 })