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<?php
namespace Drupal\commerce_cart\Plugin\Block;
use Drupal\commerce_cart\CartProviderInterface;
use Drupal\Core\Block\BlockBase;
use Drupal\Core\Cache\Cache;
use Drupal\Core\Cache\CacheableMetadata;
use Drupal\Core\Entity\EntityTypeManagerInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Plugin\ContainerFactoryPluginInterface;
use Drupal\Core\Url;
use Symfony\Component\DependencyInjection\ContainerInterface;
class CartBlock extends BlockBase implements ContainerFactoryPluginInterface {
protected $cartProvider;
protected $entityTypeManager;
public function __construct(array $configuration, $plugin_id, $plugin_definition, CartProviderInterface $cart_provider, EntityTypeManagerInterface $entity_type_manager) {
parent::__construct($configuration, $plugin_id, $plugin_definition);
$this->cartProvider = $cart_provider;
$this->entityTypeManager = $entity_type_manager;
}
public static function create(ContainerInterface $container, array $configuration, $plugin_id, $plugin_definition) {
return new static($configuration, $plugin_id, $plugin_definition, $container
->get('commerce_cart.cart_provider'), $container
->get('entity_type.manager'));
}
public function defaultConfiguration() {
return [
'dropdown' => TRUE,
];
}
public function blockForm($form, FormStateInterface $form_state) {
$form['commerce_cart_dropdown'] = [
'#type' => 'radios',
'#title' => $this
->t('Display cart contents in a dropdown'),
'#default_value' => (int) $this->configuration['dropdown'],
'#options' => [
$this
->t('No'),
$this
->t('Yes'),
],
];
return $form;
}
public function blockSubmit($form, FormStateInterface $form_state) {
$this->configuration['dropdown'] = $form_state
->getValue('commerce_cart_dropdown');
}
public function build() {
$cachable_metadata = new CacheableMetadata();
$cachable_metadata
->addCacheContexts([
'user',
'session',
]);
$carts = $this->cartProvider
->getCarts();
$carts = array_filter($carts, function ($cart) {
return $cart
->hasItems() && $cart->cart->value;
});
$count = 0;
$cart_views = [];
if (!empty($carts)) {
$cart_views = $this
->getCartViews($carts);
foreach ($carts as $cart_id => $cart) {
foreach ($cart
->getItems() as $order_item) {
$count += (int) $order_item
->getQuantity();
}
$cachable_metadata
->addCacheableDependency($cart);
}
}
$links = [];
$links[] = [
'#type' => 'link',
'#title' => $this
->t('Cart'),
'#url' => Url::fromRoute('commerce_cart.page'),
];
return [
'#attached' => [
'library' => [
'commerce_cart/cart_block',
],
],
'#theme' => 'commerce_cart_block',
'#icon' => [
'#theme' => 'image',
'#uri' => drupal_get_path('module', 'commerce') . '/icons/ffffff/cart.png',
'#alt' => $this
->t('Shopping cart'),
],
'#count' => $count,
'#count_text' => $this
->formatPlural($count, '@count item', '@count items'),
'#url' => Url::fromRoute('commerce_cart.page')
->toString(),
'#content' => $cart_views,
'#links' => $links,
'#cache' => [
'contexts' => [
'cart',
],
],
];
}
protected function getCartViews(array $carts) {
$cart_views = [];
if ($this->configuration['dropdown']) {
$order_type_ids = array_map(function ($cart) {
return $cart
->bundle();
}, $carts);
$order_type_storage = $this->entityTypeManager
->getStorage('commerce_order_type');
$order_types = $order_type_storage
->loadMultiple(array_unique($order_type_ids));
$available_views = [];
foreach ($order_type_ids as $cart_id => $order_type_id) {
$order_type = $order_types[$order_type_id];
$available_views[$cart_id] = $order_type
->getThirdPartySetting('commerce_cart', 'cart_block_view', 'commerce_cart_block');
}
foreach ($carts as $cart_id => $cart) {
$cart_views[] = [
'#prefix' => '<div class="cart cart-block">',
'#suffix' => '</div>',
'#type' => 'view',
'#name' => $available_views[$cart_id],
'#arguments' => [
$cart_id,
],
'#embed' => TRUE,
];
}
}
return $cart_views;
}
public function getCacheContexts() {
return Cache::mergeContexts(parent::getCacheContexts(), [
'cart',
]);
}
public function getCacheTags() {
$cache_tags = parent::getCacheTags();
$cart_cache_tags = [];
$carts = $this->cartProvider
->getCarts();
foreach ($carts as $cart) {
$cart_cache_tags = Cache::mergeTags($cart_cache_tags, $cart
->getCacheTags());
}
return Cache::mergeTags($cache_tags, $cart_cache_tags);
}
}