From 92f6ea25cc7623d0bd34f5a2342be6f5aae951aa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Philipp=20Ku=CC=88hn?= <kontakt@philipp-kuehn.com>
Date: Sun, 11 Apr 2021 18:29:03 +0200
Subject: [PATCH] fix: remove codeblock when at start of document, fix #262

---
 packages/extension-code-block/src/code-block.ts | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/packages/extension-code-block/src/code-block.ts b/packages/extension-code-block/src/code-block.ts
index 0ab9eadd..3e7ef2bb 100644
--- a/packages/extension-code-block/src/code-block.ts
+++ b/packages/extension-code-block/src/code-block.ts
@@ -101,6 +101,22 @@ export const CodeBlock = Node.create<CodeBlockOptions>({
   addKeyboardShortcuts() {
     return {
       'Mod-Alt-c': () => this.editor.commands.toggleCodeBlock(),
+
+      // remove code block when at start of document or code block is empty
+      Backspace: state => {
+        const { empty, $anchor } = state.selection
+        const isAtStart = $anchor.pos === 1
+
+        if (!empty || $anchor.parent.type.name !== 'codeBlock') {
+          return false
+        }
+
+        if (isAtStart || !$anchor.parent.textContent.length) {
+          return this.editor.commands.clearNodes()
+        }
+
+        return false
+      },
     }
   },