public function ContextManager::getActiveReactions in Context 8

Same name and namespace in other branches

1. 8.4 src/ContextManager.php \Drupal\context\ContextManager::getActiveReactions()
2. 8.0 src/ContextManager.php \Drupal\context\ContextManager::getActiveReactions()

Get all active reactions or reactions of a certain type.

Parameters

string $reactionType: Either the reaction class name or the id of the reaction type to get.

Return value

ContextReactionInterface[]

File

src/ContextManager.php, line 217

Class

ContextManager

This is the manager service for the context module and should not be confused with the built in contexts in Drupal.

Namespace

Drupal\context

Code

public function getActiveReactions($reactionType = NULL) {
  $reactions = [];
  foreach ($this
    ->getActiveContexts() as $context) {

    // If no reaction type has been specified then add all reactions and
    // continue to the next context.
    if (is_null($reactionType)) {
      foreach ($context
        ->getReactions() as $reaction) {

        // Only return block reaction if there is a block applied to the current theme.
        if ($reaction instanceof Blocks) {
          $blocks = $reaction
            ->getBlocks();
          $current_theme = $this
            ->getCurrentTheme();
          foreach ($blocks as $block) {
            if ($block
              ->getConfiguration()['theme'] == $current_theme) {
              $reactions[] = $reaction;
              break;
            }
          }
        }
        else {
          $reactions[] = $reaction;
        }
      }
      continue;
    }
    $contextReactions = $context
      ->getReactions();

    // Filter the reactions based on the reaction type.
    foreach ($contextReactions as $reaction) {
      if (class_exists($reactionType) && $reaction instanceof $reactionType) {
        $reactions[] = $reaction;
        continue;
      }
      if ($reaction
        ->getPluginId() === $reactionType) {
        $reactions[] = $reaction;
        continue;
      }
    }
  }
  return $reactions;
}