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__experimentalShareWithChildBlocks should apply to all children, any depth in the inner-block hierarchy #35078

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@mikejolley mikejolley commented Sep 23, 2021

Description

When using controls using __experimentalShareWithChildBlocks, only the direct children show the controls.

For example, if I have a block containing inner blocks, and have his defined:

<BlockControls __experimentalShareWithChildBlocks>
	<ViewSwitcherComponent />
</BlockControls>

I see the control when the top-level block is selected, and when its direct children (inner blocks) are selected:

Screenshot 2021-09-23 at 10 29 27
Screenshot 2021-09-23 at 10 29 40

Without this patch, any deeper inner blocks do not show the above control.

This code determines if parent controls are displayed. Notice is uses hasSelectedInnerBlock to determine if an inner block is selected and so needs the controls to be added. This does not factor in multiple levels of inner blocks hierarchy.

hasSelectedInnerBlock has support for a deep parameter which searches inner blocks recursively. This is what we need here to solve the issue.

How has this been tested?

This has been tested in WooCommerce Blocks only, with the above use case. I could find little usage of __experimentalShareWithChildBlocks in Gutenberg (ButtonEdit block uses it).

ref: woocommerce/woocommerce-blocks#4812

Types of changes

This changes the behaviour of an experimental feature only available in this plugin.

Checklist:

  • My code is tested.
  • My code follows the WordPress code style.
  • My code follows the accessibility standards.
  • I've tested my changes with keyboard and screen readers.
  • My code has proper inline documentation.
  • I've included developer documentation if appropriate.
  • I've updated all React Native files affected by any refactorings/renamings in this PR (please manually search all *.native.js files for terms that need renaming or removal).

cc @senadir

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Total Size: 1.06 MB

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@senadir senadir added [Feature] Block API API that allows to express the block paradigm. [Feature] Nested / Inner Blocks Anything related to the experience of nested/inner blocks inside a larger container, like Group or P [Type] Experimental Experimental feature or API. labels Sep 23, 2021
@gziolo
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gziolo commented Oct 4, 2021

It was intentional to start small since it’s an experimental API. The name used indicates that it applies only to child blocks - not all inner blocks. So it has to be a direct parent-child relationship.

We can open it for deeply nested blocks but it needs to be opt-in because it will lead to unexpected issues. For instance, when you nest the same block type in itself, then you will have the same control type (example: align) from the grandparent and the parent block rendered in the toolbar next to each other. Duplicated controls that don't have a good visual reference to what they target might be very confusing for users.

@mikejolley
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For instance, when you nest the same block type in itself, then you will have the same control type (example: align) from the grandparent and the parent block rendered in the toolbar next to each other.

@gziolo Would this not also be the case in the direct child? Showing its own align control and the parent align control? Do you know of a block type that allows this to test this out?

If the preference is a separate flag we can try updating this PR, but @senadir and I through a unified flag would be more intuitive when dealing with complex hierarchies.

@senadir
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senadir commented Oct 4, 2021

The issue of nested similar blocks is something we overlooked. I have no problem moving this to a separate flag and fixing it there. I think there's value in having it being nested deeply, and the issue of same blocks nested can be worked around somehow (limiting consumption to the nearest parent...)

@gziolo
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gziolo commented Oct 4, 2021

Would this not also be the case in the direct child? Showing its own align control and the parent align control? Do you know of a block type that allows this to test this out?

Buttons block and Social Icons block use that. It isn't an issue for a direct child, because all parent controls are grouped together in their toolbar group. So when both blocks have the same toolbar control, they are in different places.

I have no problem moving this to a separate flag and fixing it there. I think there's value in having it being nested deeply, and the issue of same blocks nested can be worked around somehow (limiting consumption to the nearest parent...)

It doesn't have to be a new flag. We can rename the existing one, and let it take different values so we could support both behaviors. For example, __experimentalShareWithInnerBlocks that defaults to true representing (direct) children, but also supports all which is what you need. Based on that we would pass true or false to hasSelectedInnerBlock call. We can iterate on the API so we learn about other use cases block authors have.

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Labels
[Feature] Block API API that allows to express the block paradigm. [Feature] Nested / Inner Blocks Anything related to the experience of nested/inner blocks inside a larger container, like Group or P [Type] Experimental Experimental feature or API.
3 participants