feat: escape code blocks on triple enter, fix #2195

packages/extension-code-block/src/code-block.ts

@@ -118,6 +118,34 @@ export const CodeBlock = Node.create<CodeBlockOptions>({
 
         return false
       },
+
+      // escape node on triple enter
+      Enter: ({ editor }) => {
+        const { state } = editor
+        const { selection } = state
+        const { $from, empty } = selection
+
+        if (!empty || $from.parent.type !== this.type) {
+          return false
+        }
+
+        const isAtEnd = $from.parentOffset === $from.parent.nodeSize - 2
+        const endsWithDoubleNewline = $from.parent.textContent.endsWith('\n\n')
+
+        if (!isAtEnd || !endsWithDoubleNewline) {
+          return false
+        }
+
+        return editor
+          .chain()
+          .command(({ tr }) => {
+            tr.delete($from.pos - 2, $from.pos)
+
+            return true
+          })
+          .exitCode()
+          .run()
+      },
     }
   },