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- <?php
- namespace Drupal\Core\Extension;
- use Drupal\Core\StringTranslation\StringTranslationTrait;
- use Drupal\Core\StringTranslation\TranslationInterface;
- /**
- * Ensures modules cannot be uninstalled if enabled themes depend on them.
- */
- class ModuleRequiredByThemesUninstallValidator implements ModuleUninstallValidatorInterface {
- use StringTranslationTrait;
- /**
- * The module extension list.
- *
- * @var \Drupal\Core\Extension\ModuleExtensionList
- */
- protected $moduleExtensionList;
- /**
- * The theme extension list.
- *
- * @var \Drupal\Core\Extension\ThemeExtensionList
- */
- protected $themeExtensionList;
- /**
- * Constructs a new ModuleRequiredByThemesUninstallValidator.
- *
- * @param \Drupal\Core\StringTranslation\TranslationInterface $string_translation
- * The string translation service.
- * @param \Drupal\Core\Extension\ModuleExtensionList $extension_list_module
- * The module extension list.
- * @param \Drupal\Core\Extension\ThemeExtensionList $extension_list_theme
- * The theme extension list.
- */
- public function __construct(TranslationInterface $string_translation, ModuleExtensionList $extension_list_module, ThemeExtensionList $extension_list_theme) {
- $this->stringTranslation = $string_translation;
- $this->moduleExtensionList = $extension_list_module;
- $this->themeExtensionList = $extension_list_theme;
- }
- /**
- * {@inheritdoc}
- */
- public function validate($module) {
- $reasons = [];
- $themes_depending_on_module = $this->getThemesDependingOnModule($module);
- if (!empty($themes_depending_on_module)) {
- $module_name = $this->moduleExtensionList->get($module)->info['name'];
- $theme_names = implode(', ', $themes_depending_on_module);
- $reasons[] = $this->formatPlural(count($themes_depending_on_module),
- 'Required by the theme: @theme_names',
- 'Required by the themes: @theme_names',
- ['@module_name' => $module_name, '@theme_names' => $theme_names]);
- }
- return $reasons;
- }
- /**
- * Returns themes that depend on a module.
- *
- * @param string $module
- * The module machine name.
- *
- * @return string[]
- * An array of the names of themes that depend on $module.
- */
- protected function getThemesDependingOnModule($module) {
- $installed_themes = $this->themeExtensionList->getAllInstalledInfo();
- $themes_depending_on_module = array_map(function ($theme) use ($module) {
- if (in_array($module, $theme['dependencies'])) {
- return $theme['name'];
- }
- }, $installed_themes);
- return array_filter($themes_depending_on_module);
- }
- }
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