protected ThemeHandler::doGetBaseThemes(array $themes, $theme, $used_themes = array())
Finds the base themes for the specific theme.
Parameters
array $themes: An array of available themes.
string $theme: The name of the theme whose base we are looking for.
array $used_themes: (optional) A recursion parameter preventing endless loops. Defaults to an empty array.
Return value
array An array of base themes.
File
- core/lib/Drupal/Core/Extension/ThemeHandler.php, line 385
Class
- ThemeHandler
- Default theme handler using the config system to store installation statuses.
Namespace
Drupal\Core\Extension
Code
protected function doGetBaseThemes(array $themes, $theme, $used_themes = array()) {
if (!isset($themes[$theme]->info['base theme'])) {
return array();
}
$base_key = $themes[$theme]->info['base theme'];
// Does the base theme exist?
if (!isset($themes[$base_key])) {
return array($base_key => NULL);
}
$current_base_theme = array($base_key => $themes[$base_key]->info['name']);
// Is the base theme itself a child of another theme?
if (isset($themes[$base_key]->info['base theme'])) {
// Do we already know the base themes of this theme?
if (isset($themes[$base_key]->base_themes)) {
return $themes[$base_key]->base_themes + $current_base_theme;
}
// Prevent loops.
if (!empty($used_themes[$base_key])) {
return array($base_key => NULL);
}
$used_themes[$base_key] = TRUE;
return $this->doGetBaseThemes($themes, $base_key, $used_themes) + $current_base_theme;
}
// If we get here, then this is our parent theme.
return $current_base_theme;
}
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