/**
* Returns theme inheritance hierarchy with root theme as first item
*
* @param string $themeName
*
* @return Theme[]
*/
protected function getThemesHierarchy($themeName)
{
$hierarchy = [];
while (null !== $themeName) {
$theme = $this->themeManager->getTheme($themeName);
$hierarchy[] = $theme;
$themeName = $theme->getParentTheme();
}
return array_reverse($hierarchy);
}
/**
* @param Theme $theme
* @return array
*/
protected function collectThemeAssets(Theme $theme)
{
$assets = $theme->getDataByKey('assets', []);
$parentTheme = $theme->getParentTheme();
if ($parentTheme) {
$parentTheme = $this->themeManager->getTheme($parentTheme);
$assets = array_merge_recursive($this->collectThemeAssets($parentTheme), $assets);
}
return $assets;
}
/**
* {@inheritdoc}
*/
public function getData(ContextInterface $context)
{
return $this->themeManager->getTheme($context->get('theme'));
}