class ColorSystemBrandingBlockAlter

Same name and namespace in other branches
  1. 8.9.x core/modules/color/src/ColorSystemBrandingBlockAlter.php \Drupal\color\ColorSystemBrandingBlockAlter

Provides a trusted callback to alter the system branding block.

Hierarchy

Expanded class hierarchy of ColorSystemBrandingBlockAlter

See also

color_block_view_system_branding_block_alter()

1 file declares its use of ColorSystemBrandingBlockAlter
color.module in core/modules/color/color.module
Allows users to change the color scheme of themes.

File

core/modules/color/src/ColorSystemBrandingBlockAlter.php, line 13

Namespace

Drupal\color
View source 
class ColorSystemBrandingBlockAlter implements RenderCallbackInterface {
    
    /**
     * #pre_render callback: Sets color preset logo.
     */
    public static function preRender($build) {
        $theme_key = \Drupal::theme()->getActiveTheme()
            ->getName();
        $config = \Drupal::config('color.theme.' . $theme_key);
        CacheableMetadata::createFromRenderArray($build)->addCacheableDependency($config)
            ->applyTo($build);
        // Override logo.
        $logo = $config->get('logo');
        if ($logo && $build['content']['site_logo'] && preg_match('!' . $theme_key . '/logo.svg$!', $build['content']['site_logo']['#uri'])) {
            $build['content']['site_logo']['#uri'] = \Drupal::service('file_url_generator')->generateString($logo);
        }
        return $build;
    }

}

Members

Title Modifiers Object type Summary
ColorSystemBrandingBlockAlter::preRender public static function #pre_render callback: Sets color preset logo.

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