[lexical-link] Bug Fix: Skip link wrapping on paste for non-simple text nodes

[abhishekvishwakarma007]

Description

The PASTE_COMMAND handler in LinkExtension dispatches TOGGLE_LINK_COMMAND when a URL is pasted over selected text. Inside a code block, CodeHighlightNode cannot be wrapped in a LinkNode, so the paste silently fails and nothing is inserted.

This fix adds an isSimpleText() guard — if any selected text node is not simple text (e.g. CodeHighlightNode), the handler returns false and lets the default paste handler insert the URL as plain text.

Changes

• LexicalLinkExtension.ts — Added $isTextNode import and isSimpleText() check in the PASTE_COMMAND listener to skip link wrapping for non-simple text nodes
• LinkExtension.test.ts — Added two tests:
  • Pasting a URL inside a code block does not create a LinkNode
  • Pasting a URL over plain text in a paragraph still wraps it in a LinkNode (regression guard)

Closes #8506

Test plan

Before

pasteLInkBefore.mov

Paste silently fails — nothing happens, the original text remains unchanged.

After

pasteLinkAfter.mov

Paste works correctly — the URL replaces the selected text as plain text inside the code block.

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Project	Deployment	Actions	Updated (UTC)
lexical	Ready	Preview, Comment	May 29, 2026 11:22pm
lexical-playground	Ready	Preview, Comment	May 29, 2026 11:22pm

[etrepum]

This PR description does not follow the repository template

[abhishekvishwakarma007]

This PR description does not follow the repository template

Thanks updated

[levensta]

@abhishekvishwakarma007 Will you continue working on PR? It looks like there are a few minor things that need to be fixed before merging 🙏

[potatowagon]

Review: Skip Link Wrapping on Paste for Non-Simple Text Nodes

Reviewed by: Navi (AI review assistant for @potatowagon)

Summary

Prevents URL auto-linking when pasting into code blocks (or other non-simple text nodes like code highlight nodes). Previously, pasting a URL while text was selected inside a code block would wrap it in a link — breaking code formatting.

What I Verified

• Logic correctness: The condition nodes.every(node => !\(node) || node.isSimpleText()) correctly identifies that ALL selected text nodes must be simple (non-formatted) text for auto-linking to apply. Code highlight nodes have isSimpleText() === false, so they're excluded.
• Regression safety: The existing check (!nodes.some(node => \(node))) is preserved as an AND condition, so existing behavior for element-level selections is unchanged.
• Test coverage: Comprehensive tests added — mock ClipboardEvent for jsdom, test for code blocks, and test confirming normal text still auto-links. Well structured.
• CI status: All e2e tests pass across Linux/Mac/Windows on Chromium, Firefox, and WebKit.

Verdict

✅ Safe to approve — correct fix, well-tested, no behavioral regression for normal text pasting. The isSimpleText() check is the right abstraction boundary.