namespace Drupal\Core\Block
| Object name | File name | Summary |
|---|---|---|
| BlockBase | core/lib/Drupal/Core/Block/BlockBase.php | Defines a base block implementation that most blocks plugins will extend. |
| BlockManager | core/lib/Drupal/Core/Block/BlockManager.php | Manages discovery and instantiation of block plugins. |
| BlockManagerInterface | core/lib/Drupal/Core/Block/BlockManagerInterface.php | Provides an interface for the discovery and instantiation of block plugins. |
| BlockPluginInterface | core/lib/Drupal/Core/Block/BlockPluginInterface.php | Defines the required interface for all block plugins. |
| BlockPluginTrait | core/lib/Drupal/Core/Block/BlockPluginTrait.php | Provides the base implementation of a block plugin. |
| MainContentBlockPluginInterface | core/lib/Drupal/Core/Block/MainContentBlockPluginInterface.php | The interface for "main page content" blocks. |
| MessagesBlockPluginInterface | core/lib/Drupal/Core/Block/MessagesBlockPluginInterface.php | The interface for "messages" (#type => status_messages) blocks. |
| TitleBlockPluginInterface | core/lib/Drupal/Core/Block/TitleBlockPluginInterface.php | The interface for "title" blocks. |