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<?php
namespace Drupal\system\Form;
use Drupal\Core\Extension\ModuleHandlerInterface;
use Drupal\Core\Extension\ModuleInstallerInterface;
use Drupal\Core\Form\FormBase;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Provides a form for uninstalling modules.
*/
class ModulesUninstallForm extends FormBase {
/**
* The module handler service.
*
* @var \Drupal\Core\Extension\ModuleHandlerInterface
*/
protected $moduleHandler;
/**
* The module installer service.
*
* @var \Drupal\Core\Extension\ModuleInstallerInterface
*/
protected $moduleInstaller;
/**
* The expirable key value store.
*
* @var \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface
*/
protected $keyValueExpirable;
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('module_handler'),
$container->get('module_installer'),
$container->get('keyvalue.expirable')->get('modules_uninstall')
);
}
/**
* Constructs a ModulesUninstallForm object.
*
* @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
* The module handler.
* @param \Drupal\Core\Extension\ModuleInstallerInterface $module_installer
* The module installer.
* @param \Drupal\Core\KeyValueStore\KeyValueStoreExpirableInterface $key_value_expirable
* The key value expirable factory.
*/
public function __construct(ModuleHandlerInterface $module_handler, ModuleInstallerInterface $module_installer, KeyValueStoreExpirableInterface $key_value_expirable) {
$this->moduleHandler = $module_handler;
$this->moduleInstaller = $module_installer;
$this->keyValueExpirable = $key_value_expirable;
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'system_modules_uninstall';
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
// Make sure the install API is available.
include_once DRUPAL_ROOT . '/core/includes/install.inc';
// Get a list of all available modules.
$modules = system_rebuild_module_data();
$uninstallable = array_filter($modules, function ($module) use ($modules) {
return empty($modules[$module->getName()]->info['required']) && $module->status;
});
// Include system.admin.inc so we can use the sort callbacks.
$this->moduleHandler->loadInclude('system', 'inc', 'system.admin');
$form['filters'] = [
'#type' => 'container',
'#attributes' => [
'class' => ['table-filter', 'js-show'],
],
];
$form['filters']['text'] = [
'#type' => 'search',
'#title' => $this->t('Filter modules'),
'#title_display' => 'invisible',
'#size' => 30,
'#placeholder' => $this->t('Filter by name or description'),
'#description' => $this->t('Enter a part of the module name or description'),
'#attributes' => [
'class' => ['table-filter-text'],
'data-table' => '#system-modules-uninstall',
'autocomplete' => 'off',
],
];
$form['modules'] = [];
// Only build the rest of the form if there are any modules available to
// uninstall;
if (empty($uninstallable)) {
return $form;
}
$profile = drupal_get_profile();
// Sort all modules by their name.
uasort($uninstallable, 'system_sort_modules_by_info_name');
$validation_reasons = $this->moduleInstaller->validateUninstall(array_keys($uninstallable));
$form['uninstall'] = ['#tree' => TRUE];
foreach ($uninstallable as $module_key => $module) {
$name = $module->info['name'] ?: $module->getName();
$form['modules'][$module->getName()]['#module_name'] = $name;
$form['modules'][$module->getName()]['name']['#markup'] = $name;
$form['modules'][$module->getName()]['description']['#markup'] = $this->t($module->info['description']);
$form['uninstall'][$module->getName()] = [
'#type' => 'checkbox',
'#title' => $this->t('Uninstall @module module', ['@module' => $name]),
'#title_display' => 'invisible',
];
// If a validator returns reasons not to uninstall a module,
// list the reasons and disable the check box.
if (isset($validation_reasons[$module_key])) {
$form['modules'][$module->getName()]['#validation_reasons'] = $validation_reasons[$module_key];
$form['uninstall'][$module->getName()]['#disabled'] = TRUE;
}
// All modules which depend on this one must be uninstalled first, before
// we can allow this module to be uninstalled. (The installation profile
// is excluded from this list.)
foreach (array_keys($module->required_by) as $dependent) {
if ($dependent != $profile && drupal_get_installed_schema_version($dependent) != SCHEMA_UNINSTALLED) {
$name = isset($modules[$dependent]->info['name']) ? $modules[$dependent]->info['name'] : $dependent;
$form['modules'][$module->getName()]['#required_by'][] = $name;
$form['uninstall'][$module->getName()]['#disabled'] = TRUE;
}
}
}
$form['#attached']['library'][] = 'system/drupal.system.modules';
$form['actions'] = ['#type' => 'actions'];
$form['actions']['submit'] = [
'#type' => 'submit',
'#value' => $this->t('Uninstall'),
];
return $form;
}
/**
* {@inheritdoc}
*/
public function validateForm(array &$form, FormStateInterface $form_state) {
// Form submitted, but no modules selected.
if (!array_filter($form_state->getValue('uninstall'))) {
$form_state->setErrorByName('', $this->t('No modules selected.'));
$form_state->setRedirect('system.modules_uninstall');
}
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
// Save all the values in an expirable key value store.
$modules = $form_state->getValue('uninstall');
$uninstall = array_keys(array_filter($modules));
$account = $this->currentUser()->id();
// Store the values for 6 hours. This expiration time is also used in
// the form cache.
$this->keyValueExpirable->setWithExpire($account, $uninstall, 6 * 60 * 60);
// Redirect to the confirm form.
$form_state->setRedirect('system.modules_uninstall_confirm');
}
}