public function ThemeSwitcherNegotiator::applies in Context 8.4

Same name and namespace in other branches

1. 8 src/Theme/ThemeSwitcherNegotiator.php \Drupal\context\Theme\ThemeSwitcherNegotiator::applies()

Whether this theme negotiator should be used to set the theme.

Parameters

\Drupal\Core\Routing\RouteMatchInterface $route_match: The current route match object.

Return value

bool TRUE if this negotiator should be used or FALSE to let other negotiators decide.

Overrides ThemeNegotiatorInterface::applies

File

src/Theme/ThemeSwitcherNegotiator.php, line 50

Class

ThemeSwitcherNegotiator

Context Theme Switcher Negotiator.

Namespace

Drupal\context\Theme

Code

public function applies(RouteMatchInterface $route_match) {

  // If there is no Theme reaction set or this method has already been
  // executed, do not try to get active reactions, since this causes infinite
  // loop.
  if ($this->evaluated) {
    $this->evaluated = FALSE;
    return FALSE;
  }
  $theme_reaction = FALSE;
  foreach ($this->contextManager
    ->getContexts() as $context) {
    foreach ($context
      ->getReactions() as $reaction) {
      if ($reaction instanceof Theme) {
        $theme_reaction = TRUE;
        break;
      }
    }
  }
  if ($theme_reaction) {
    $this->evaluated = TRUE;
    foreach ($this->contextManager
      ->getActiveReactions('theme') as $theme_reaction) {
      $configuration = $theme_reaction
        ->getConfiguration();

      // Be sure the theme key really exists.
      if (isset($configuration['theme'])) {
        switch ($configuration['theme']) {
          case '_admin':
            $this->theme = \Drupal::config('system.theme')
              ->get('admin');
            return TRUE;
          case '_default':
            $this->theme = \Drupal::config('system.theme')
              ->get('default');
            return TRUE;
          default:
            $this->theme = $configuration['theme'];
            return TRUE;
        }
      }
    }
  }
  return FALSE;
}