MU WPCOM: fix admin menu upsell layout shift

[ellatrix]

Fixes Automattic/wp-calypso#87509 for wp-admin

Screen.Recording.2025-01-31.at.19.35.30.mov

Proposed changes:

• Let's avoid JS and render it in good old PHP.
• Gets rid of a network request.
• Here's the trick: I'm using the adminmenu hook which allows us to insert random HTML after the admin menu. With the help of a tiny little inline script that instantly executes we can move it to the top before the browser can even render it. (function(el){el.parentNode.prepend(el)})(document.getElementById( "toplevel_page_site-notices" ))

Other information:

• Have you written new tests for your changes, if applicable?
• Have you checked the E2E test CI results, and verified that your changes do not break them?
• Have you tested your changes on WordPress.com, if applicable (if so, you'll see a generated comment below with a script to run)?

Jetpack product discussion

Does this pull request change what data or activity we track or use?

Testing instructions:

• Click admin menu links. The upsell notice shouldn't insert itself with a delay.

[github-actions]

Are you an Automattician? Please test your changes on all WordPress.com environments to help mitigate accidental explosions.

• To test on WoA, go to the Plugins menu on a WordPress.com Simple site. Click on the "Upload" button and follow the upgrade flow to be able to upload, install, and activate the Jetpack Beta plugin. Once the plugin is active, go to Jetpack > Jetpack Beta, select your plugin, and enable the fix/admin-menu-notice-jank branch.

  • For jetpack-mu-wpcom changes, also add define( 'JETPACK_MU_WPCOM_LOAD_VIA_BETA_PLUGIN', true ); to your wp-config.php file.

• To test on Simple, run the following command on your sandbox:

  bin/jetpack-downloader test jetpack-mu-wpcom-plugin fix/admin-menu-notice-jank
  

Interested in more tips and information?

• In your local development environment, use the jetpack rsync command to sync your changes to a WoA dev blog.
• Read more about our development workflow here: PCYsg-eg0-p2
• Figure out when your changes will be shipped to customers here: PCYsg-eg5-p2

[github-actions]

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[ellatrix]

Note that the second arg was missing here, causing an error in the function, and causing everything after this line to not be executed.

[github-actions]

Code Coverage Summary

Coverage changed in 1 file.

File	Coverage	Δ%	Δ Uncovered
projects/packages/jetpack-mu-wpcom/src/features/wpcom-sidebar-notice/wpcom-sidebar-notice.php	0/102 (0.00%)	0.00%	3 💔

Full summary · PHP report · JS report

[ellatrix]

This is the reason why no JS errors are currently visible in trunk.

[fditrapani]

Thank you for working on this. This looks great from the video! I unfortunately can't test it because I'm not set up.

[arthur791004]

Tested and it works well! The layout won't shift anymore 👍