protected function ThemeExtensionList::fillInSubThemeData in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Extension/ThemeExtensionList.php \Drupal\Core\Extension\ThemeExtensionList::fillInSubThemeData()

Fills in data for themes that are also sub-themes.

Parameters

array $themes: The array of partly processed theme information.

array $sub_themes: A list of themes from the $theme array that are also sub-themes.

1 call to ThemeExtensionList::fillInSubThemeData()

ThemeExtensionList::doList in core/lib/Drupal/Core/Extension/ThemeExtensionList.php

Builds the list of extensions.

File

core/lib/Drupal/Core/Extension/ThemeExtensionList.php, line 172

Class

ThemeExtensionList

Provides a list of available themes.

Namespace

Drupal\Core\Extension

Code

protected function fillInSubThemeData(array &$themes, array $sub_themes) {
  foreach ($sub_themes as $name) {
    $sub_theme = $themes[$name];

    // The $base_themes property is optional; only set for sub themes.
    // @see ThemeHandlerInterface::listInfo()
    $sub_theme->base_themes = $this
      ->doGetBaseThemes($themes, $name);

    // empty() cannot be used here, since static::doGetBaseThemes() adds
    // the key of a base theme with a value of NULL in case it is not found,
    // in order to prevent needless iterations.
    if (!current($sub_theme->base_themes)) {
      continue;
    }

    // Determine the root base theme.
    $root_key = key($sub_theme->base_themes);

    // Build the list of sub-themes for each of the theme's base themes.
    foreach (array_keys($sub_theme->base_themes) as $base_theme) {
      $themes[$base_theme]->sub_themes[$name] = $sub_theme->info['name'];
    }

    // Add the theme engine info from the root base theme.
    if (isset($themes[$root_key]->owner)) {
      $sub_theme->info['engine'] = $themes[$root_key]->info['engine'];
      $sub_theme->owner = $themes[$root_key]->owner;
      $sub_theme->prefix = $themes[$root_key]->prefix;
    }
  }
}