Element::isEmpty() is used by BlockComponentRenderArray to determine if a block is empty.
However Inline Blocks (and perhaps some complex Views blocks) do not return an empty array when they are empty.
Because it's a rendered entity, it has several keys like #block_content, #view_mode, and an empty child array for each field.
Steps:
Install Layout Builder
Enable Layout Builder for Basic Page (any content type will do, and "Allow each content item to have its layout customized." is not required).
Add an inline block with a title, no body field, and hide the title (uncheck "Display title")
Expectation:
Placeholder for the "Block title" block shown on page
Actual:
Nothing shown on page. Block still takes up vertical space and contextual links are available.
Either improve how "empty" entities are rendered, or improve the checking in BlockComponentRenderArray.
Figure out how to fix
The expected text will display
TBD
N/A
TBD
Needs work
11.0 🔥
layout_builder.module
Blocks and Layouts Initiative. See the #2811175 Add layouts to Drupal issue.
Not all content is available!
It's likely this issue predates Contrib.social: some issue and comment data are missing.
I'm still experiencing this issue on 10.3.6. My use case involve using Views Reference Field → within custom custom block types.
Has there been any movement on this issue? This is a fairly big UX concern for page builders. With Experience Builder → on the way, hopefully these sorts of issues will soon be irrelevant.