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<?php
namespace Drupal\system\Form;
use Drupal\Core\Asset\AssetCollectionOptimizerInterface;
use Drupal\Core\Form\ConfigFormBase;
use Drupal\Core\Config\ConfigFactoryInterface;
use Drupal\Core\Cache\CacheBackendInterface;
use Drupal\Core\Datetime\DateFormatterInterface;
use Drupal\Core\Form\FormStateInterface;
use Symfony\Component\DependencyInjection\ContainerInterface;
/**
* Configure performance settings for this site.
*/
class PerformanceForm extends ConfigFormBase {
/**
* The render cache bin.
*
* @var \Drupal\Core\Cache\CacheBackendInterface
*/
protected $renderCache;
/**
* The date formatter service.
*
* @var \Drupal\Core\Datetime\DateFormatterInterface
*/
protected $dateFormatter;
/**
* The CSS asset collection optimizer service.
*
* @var \Drupal\Core\Asset\AssetCollectionOptimizerInterface
*/
protected $cssCollectionOptimizer;
/**
* The JavaScript asset collection optimizer service.
*
* @var \Drupal\Core\Asset\AssetCollectionOptimizerInterface
*/
protected $jsCollectionOptimizer;
/**
* Constructs a PerformanceForm object.
*
* @param \Drupal\Core\Config\ConfigFactoryInterface $config_factory
* The factory for configuration objects.
* @param \Drupal\Core\Cache\CacheBackendInterface $render_cache
* @param \Drupal\Core\Datetime\DateFormatterInterface $date_formatter
* The date formatter service.
* @param \Drupal\Core\Asset\AssetCollectionOptimizerInterface $css_collection_optimizer
* The CSS asset collection optimizer service.
* @param \Drupal\Core\Asset\AssetCollectionOptimizerInterface $js_collection_optimizer
* The JavaScript asset collection optimizer service.
*/
public function __construct(ConfigFactoryInterface $config_factory, CacheBackendInterface $render_cache, DateFormatterInterface $date_formatter, AssetCollectionOptimizerInterface $css_collection_optimizer, AssetCollectionOptimizerInterface $js_collection_optimizer) {
parent::__construct($config_factory);
$this->renderCache = $render_cache;
$this->dateFormatter = $date_formatter;
$this->cssCollectionOptimizer = $css_collection_optimizer;
$this->jsCollectionOptimizer = $js_collection_optimizer;
}
/**
* {@inheritdoc}
*/
public static function create(ContainerInterface $container) {
return new static(
$container->get('config.factory'),
$container->get('cache.render'),
$container->get('date.formatter'),
$container->get('asset.css.collection_optimizer'),
$container->get('asset.js.collection_optimizer')
);
}
/**
* {@inheritdoc}
*/
public function getFormId() {
return 'system_performance_settings';
}
/**
* {@inheritdoc}
*/
protected function getEditableConfigNames() {
return ['system.performance'];
}
/**
* {@inheritdoc}
*/
public function buildForm(array $form, FormStateInterface $form_state) {
$form['#attached']['library'][] = 'system/drupal.system';
$config = $this->config('system.performance');
$form['clear_cache'] = [
'#type' => 'details',
'#title' => t('Clear cache'),
'#open' => TRUE,
];
$form['clear_cache']['clear'] = [
'#type' => 'submit',
'#value' => t('Clear all caches'),
'#submit' => ['::submitCacheClear'],
];
$form['caching'] = [
'#type' => 'details',
'#title' => t('Caching'),
'#open' => TRUE,
'#description' => $this->t('Note: Drupal provides an internal page cache module that is recommended for small to medium-sized websites.'),
];
// Identical options to the ones for block caching.
// @see \Drupal\Core\Block\BlockBase::buildConfigurationForm()
$period = [0, 60, 180, 300, 600, 900, 1800, 2700, 3600, 10800, 21600, 32400, 43200, 86400];
$period = array_map([$this->dateFormatter, 'formatInterval'], array_combine($period, $period));
$period[0] = '<' . t('no caching') . '>';
$form['caching']['page_cache_maximum_age'] = [
'#type' => 'select',
'#title' => t('Page cache maximum age'),
'#default_value' => $config->get('cache.page.max_age'),
'#options' => $period,
'#description' => t('The maximum time a page can be cached by browsers and proxies. This is used as the value for max-age in Cache-Control headers.'),
];
$directory = 'public://';
$is_writable = is_dir($directory) && is_writable($directory);
$disabled = !$is_writable;
$disabled_message = '';
if (!$is_writable) {
$disabled_message = ' ' . t('<strong class="error">Set up the <a href=":file-system">public files directory</a> to make these optimizations available.</strong>', [':file-system' => $this->url('system.file_system_settings')]);
}
$form['bandwidth_optimization'] = [
'#type' => 'details',
'#title' => t('Bandwidth optimization'),
'#open' => TRUE,
'#description' => t('External resources can be optimized automatically, which can reduce both the size and number of requests made to your website.') . $disabled_message,
];
$form['bandwidth_optimization']['preprocess_css'] = [
'#type' => 'checkbox',
'#title' => t('Aggregate CSS files'),
'#default_value' => $config->get('css.preprocess'),
'#disabled' => $disabled,
];
$form['bandwidth_optimization']['preprocess_js'] = [
'#type' => 'checkbox',
'#title' => t('Aggregate JavaScript files'),
'#default_value' => $config->get('js.preprocess'),
'#disabled' => $disabled,
];
return parent::buildForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function submitForm(array &$form, FormStateInterface $form_state) {
$this->cssCollectionOptimizer->deleteAll();
$this->jsCollectionOptimizer->deleteAll();
// This form allows page compression settings to be changed, which can
// invalidate cached pages in the render cache, so it needs to be cleared on
// form submit.
$this->renderCache->deleteAll();
$this->config('system.performance')
->set('cache.page.max_age', $form_state->getValue('page_cache_maximum_age'))
->set('css.preprocess', $form_state->getValue('preprocess_css'))
->set('js.preprocess', $form_state->getValue('preprocess_js'))
->save();
parent::submitForm($form, $form_state);
}
/**
* Clears the caches.
*/
public function submitCacheClear(array &$form, FormStateInterface $form_state) {
drupal_flush_all_caches();
drupal_set_message(t('Caches cleared.'));
}
}