Invokes a hook in a particular theme.

Parameters

string $theme_key: The name of the theme (without the .theme extension).

string $hook: The name of the hook to invoke.

array $args: Arguments to pass to the hook implementation.

Return value

mixed The return value of the hook implementation.

Overrides ThemeManagerInterface::invoke

File

core/lib/Drupal/Core/Theme/ThemeManager.php, line 503

Class

ThemeManager

Provides the default implementation of a theme manager.

Namespace

Drupal\Core\Theme

Code

public function invoke(string $theme, string $hook, array $args = []) {
  $listeners = $this->getImplementationsForTheme($theme, $hook);
  if ($listeners) {
    if (count($listeners) > 1) {
      throw new \LogicException("Theme {$theme} should not implement {$hook} more than once");
    }
    return reset($listeners)(...$args);
  }
}

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