function ThemePreprocess::preprocessPage

Prepares variables for the page template.

Default template: page.html.twig.

See the page.html.twig template for the list of variables.

File

core/lib/Drupal/Core/Theme/ThemePreprocess.php, line 330

Class

ThemePreprocess

Preprocess for common/core theme templates.

Namespace

Code

public function preprocessPage(array &$variables) : void {
    $language_interface = $this->languageManager
        ->getCurrentLanguage();
    foreach ($this->themeManager
        ->getActiveTheme()
        ->getRegions() as $region) {
        if (!isset($variables['page'][$region])) {
            $variables['page'][$region] = [];
        }
    }
    $variables['base_path'] = base_path();
    $variables['front_page'] = Url::fromRoute('<front>')->toString();
    $variables['language'] = $language_interface;
    // An exception might be thrown.
    try {
        $variables['is_front'] = $this->pathMatcher
            ->isFrontPage();
    } catch (\Exception) {
        // If the database is not yet available, set default values for these
        // variables.
        $variables['is_front'] = FALSE;
        $variables['db_is_active'] = FALSE;
    }
    if (($node = $this->routeMatch
        ->getParameter('node')) || ($node = $this->routeMatch
        ->getParameter('node_preview'))) {
        $variables['node'] = $node;
    }
}