Reduce the API scope of our plugin managers [#3590426]

Problem/Motivation

The "Summer of UI Patterns" is starting soon with a focus on #ui_patterns-next which will simplify a lot our plugin managers:

src/ComponentPluginManager.php
src/DerivableContextPluginManager.php
src/PropTypeAdapterPluginManager.php
src/PropTypePluginManager.php
src/SourcePluginManager.php

Proposed resolution

So, to avoid extra complexity and unexpected risks, we need to reduce the scope of the API by moving as much protected and public methods and properties to private visibility scope.

This is not an endorsement of private visibility scope in general for UI Patterns and UI Suite projects. We believe in wide open, extensible, API, but this is a contextual need.

Also, it will allow the ecosystem of contrib and custom modules to prepare to the changes.

Issue fork ui_patterns-3590426

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3590426-reduce-the-api changes, plain diff MR !495
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Comments

Comment #1

16 May 2026 at 08:46

pdureau created an issue. See original summary.

Comment #2

16 May 2026 at 09:02

pdureau opened merge request !495

Comment #3

pdureau commented 16 May 2026 at 09:25

Status:

Active

» Needs work

Work in progress.

We have aleady removed those methods from the API scope (they went from public to private):

PropTypePluginManager::getPropConvertibilityGraph()
SourcePluginManager::getNativeDefinitionsForPropType()
SourcePluginManager::getConvertibleDefinitionsForPropType()
SourcePluginManager::isApplicable()

This will make the eventual removal of PropType plugins easier for the next major release of UI Patterns.

2 phpunit fails don't seem related to the current work and are also met in #3589204: Drupal 12 and phpunit and #3590426: Reduce the API scope of our plugin managers:

1) Drupal\Tests\ui_patterns_layouts\Functional\LayoutBuilderRenderTest::testRenderSlotsReplaced
Behat\Mink\Exception\ElementTextException: The text "field_text_1 value" was not found in the text of the element matching css ".ui-patterns-test-form-replaced-slot".
2) Drupal\Tests\ui_patterns_layouts\Functional\LayoutBuilderRenderTest::testRenderSlots
Behat\Mink\Exception\ElementTextException: The text "field_text_1 value" was not found in the text of the element matching css ".ui-patterns-slots-slot".