Template part selecting and editing unavailable in “Write” mode

[annezazu]

When the editor is set to “Design” mode, users can select template parts, which renders an “Edit” button allowing isolated editing of the template part. However, this functionality is unavailable in “Write” mode.

But if you enter the editor, turn on write mode, and open list view, template parts aren't visible in the list view nor can you edit them. I can replicate this with Twenty Twenty-Five, as well as other block themes with both 6.7 trunk & Gutenberg trunk on:

open.mode.early.then.list.view.mov

[annezazu]

Noting that this includes if you switch between Write and Design modes. If you enter Write mode, it completely removes the ability to select template parts in list View even after switching to Design mode, even though you can select them. This is a demo with GB 19.6:

list.view.write.mode.mov

[ntsekouras]

Hm.. I can't reproduce on trunk. @annezazu can you test in trunk too? I'll keep digging a bit more though to see if there was a PR that fixed that..

[xavier-lc]

I've been able to replicate what @annezazu describes on a simple edge site using v19.6.0:

1. Go to /wp-admin/site-editor.php
2. Click on Templates
3. Click on a template
4. The editor opens in Write mode
5. The header and footer are not shown on the List View
6. Switch to Design mode
7. Reload the page
8. Now I can interact with header/footer, and they are shown on the list view

Screencast.from.07-11-24.10.46.06.webm

[xavier-lc]

Replicated as well on a simple site running v19.5.1:

Screencast.from.07-11-24.10.58.29.webm

[xavier-lc]

I've downgraded my simple edge site to v19.4.0 and there I can see that the content of the list view changes when switching between write/design modes:

Screencast.from.07-11-24.11.05.45.webm

[ntsekouras]

I tried this in .com and actually reproduced. Could it be happening only there?

[xavier-lc]

This bug was introduced to dotcom with this PR: #65945