Paste in code block don't work properly

[jdauphant-dinum]

Describe the bug
I copy a code, I create a code block, I paste : only the first line is in the code block, the rest is outside the code block.

To Reproduce

• copy a code (with ``` and enter)
• create a code block
• paste into the code block

Bug.TypeCell.mp4

I have tested on the website and on docs.numerique.gouv.fr .

Misc

• Node version:
• Package manager:
• Browser: Brave Version 1.77.95 Chromium: 135.0.7049.52 (Official Build) (arm64) / Firefox 137.0 (aarch64)
• I'm a sponsor and would appreciate if you could look into this sooner than later 💖

[mxthxngx]

Any update on this? @jdauphant-dinum Facing the same issue! Is there any workaround for now? (Absolutely love the product btw)

[mxthxngx]

Just a heads-up for anyone facing similar issues — I found a workaround for pasting code by implementing a custom pasteHandler.

In my case, the clipboard content wasn’t being detected as "text/markdown", so I switched to checking for "text/plain" instead. Everything else remains the same and works as expected. If "text/markdown" works for you, feel free to adjust the condition.

Here’s the snippet:

   pasteHandler: ({ event, editor, defaultPasteHandler }) => {
                    if (event.clipboardData?.types.includes("text/plain")) {
                        (async () => {
                            const cursor = editor.getTextCursorPosition();
                            console.log("Cursor", cursor.block.type);
                            let data = await navigator.clipboard.readText();

                            if (cursor.block.type === "codeBlock") {
                                data = `\`\`\`\n${data}\n\`\`\``;
                            }
                            const markdownTextBlock = await editor.tryParseMarkdownToBlocks(
                                data
                            );
                            editor.insertBlocks(markdownTextBlock, cursor.block);
                            editor.removeBlocks([cursor.block]);
                        })();
                        return true;
                    }
                    return defaultPasteHandler();
                },

Hope this helps!