diff core/lib/Drupal/Core/Menu/ContextualLinkManager.php @ 0:4c8ae668cc8c

Initial import (non-working)

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/core/lib/Drupal/Core/Menu/ContextualLinkManager.php	Wed Nov 29 16:09:58 2017 +0000
@@ -0,0 +1,194 @@
+<?php
+
+namespace Drupal\Core\Menu;
+
+use Drupal\Component\Plugin\Exception\PluginException;
+use Drupal\Core\Access\AccessManagerInterface;
+use Drupal\Core\Cache\CacheBackendInterface;
+use Drupal\Core\Controller\ControllerResolverInterface;
+use Drupal\Core\Extension\ModuleHandlerInterface;
+use Drupal\Core\Language\LanguageManagerInterface;
+use Drupal\Core\Plugin\DefaultPluginManager;
+use Drupal\Core\Plugin\Discovery\ContainerDerivativeDiscoveryDecorator;
+use Drupal\Core\Plugin\Discovery\YamlDiscovery;
+use Drupal\Core\Plugin\Factory\ContainerFactory;
+use Drupal\Core\Session\AccountInterface;
+use Symfony\Component\HttpFoundation\RequestStack;
+
+/**
+ * Defines a contextual link plugin manager to deal with contextual links.
+ *
+ * @see \Drupal\Core\Menu\ContextualLinkInterface
+ */
+class ContextualLinkManager extends DefaultPluginManager implements ContextualLinkManagerInterface {
+
+  /**
+   * Provides default values for a contextual link definition.
+   *
+   * @var array
+   */
+  protected $defaults = [
+    // (required) The name of the route to link to.
+    'route_name' => '',
+    // (required) The contextual links group.
+    'group' => '',
+    // The static title text for the link.
+    'title' => '',
+    // The default link options.
+    'options' => [],
+    // The weight of the link.
+    'weight' => NULL,
+    // Default class for contextual link implementations.
+    'class' => '\Drupal\Core\Menu\ContextualLinkDefault',
+    // The plugin id. Set by the plugin system based on the top-level YAML key.
+    'id' => '',
+  ];
+
+  /**
+   * A controller resolver object.
+   *
+   * @var \Symfony\Component\HttpKernel\Controller\ControllerResolverInterface
+   */
+  protected $controllerResolver;
+
+  /**
+   * The access manager.
+   *
+   * @var \Drupal\Core\Access\AccessManagerInterface
+   */
+  protected $accessManager;
+
+  /**
+   * The current user.
+   *
+   * @var \Drupal\Core\Session\AccountInterface
+   */
+  protected $account;
+
+  /**
+   * The request stack.
+   *
+   * @var \Symfony\Component\HttpFoundation\RequestStack
+   */
+  protected $requestStack;
+
+  /**
+   * A static cache of all the contextual link plugins by group name.
+   *
+   * @var array
+   */
+  protected $pluginsByGroup;
+
+  /**
+   * Constructs a new ContextualLinkManager instance.
+   *
+   * @param \Drupal\Core\Controller\ControllerResolverInterface $controller_resolver
+   *   The controller resolver.
+   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
+   *   The module handler.
+   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
+   *   The cache backend.
+   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
+   *   The language manager.
+   * @param \Drupal\Core\Access\AccessManagerInterface $access_manager
+   *   The access manager.
+   * @param \Drupal\Core\Session\AccountInterface $account
+   *   The current user.
+   * @param \Symfony\Component\HttpFoundation\RequestStack $request_stack
+   *   The request stack.
+   */
+  public function __construct(ControllerResolverInterface $controller_resolver, ModuleHandlerInterface $module_handler, CacheBackendInterface $cache_backend, LanguageManagerInterface $language_manager, AccessManagerInterface $access_manager, AccountInterface $account, RequestStack $request_stack) {
+    $this->factory = new ContainerFactory($this, '\Drupal\Core\Menu\ContextualLinkInterface');
+    $this->controllerResolver = $controller_resolver;
+    $this->accessManager = $access_manager;
+    $this->account = $account;
+    $this->moduleHandler = $module_handler;
+    $this->requestStack = $request_stack;
+    $this->alterInfo('contextual_links_plugins');
+    $this->setCacheBackend($cache_backend, 'contextual_links_plugins:' . $language_manager->getCurrentLanguage()->getId(), ['contextual_links_plugins']);
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  protected function getDiscovery() {
+    if (!isset($this->discovery)) {
+      $yaml_discovery = new YamlDiscovery('links.contextual', $this->moduleHandler->getModuleDirectories());
+      $yaml_discovery->addTranslatableProperty('title', 'title_context');
+      $this->discovery = new ContainerDerivativeDiscoveryDecorator($yaml_discovery);
+    }
+    return $this->discovery;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function processDefinition(&$definition, $plugin_id) {
+    parent::processDefinition($definition, $plugin_id);
+
+    // If there is no route name, this is a broken definition.
+    if (empty($definition['route_name'])) {
+      throw new PluginException(sprintf('Contextual link plugin (%s) definition must include "route_name".', $plugin_id));
+    }
+    // If there is no group name, this is a broken definition.
+    if (empty($definition['group'])) {
+      throw new PluginException(sprintf('Contextual link plugin (%s) definition must include "group".', $plugin_id));
+    }
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getContextualLinkPluginsByGroup($group_name) {
+    if (isset($this->pluginsByGroup[$group_name])) {
+      $contextual_links = $this->pluginsByGroup[$group_name];
+    }
+    elseif ($cache = $this->cacheBackend->get($this->cacheKey . ':' . $group_name)) {
+      $contextual_links = $cache->data;
+      $this->pluginsByGroup[$group_name] = $contextual_links;
+    }
+    else {
+      $contextual_links = [];
+      foreach ($this->getDefinitions() as $plugin_id => $plugin_definition) {
+        if ($plugin_definition['group'] == $group_name) {
+          $contextual_links[$plugin_id] = $plugin_definition;
+        }
+      }
+      $this->cacheBackend->set($this->cacheKey . ':' . $group_name, $contextual_links);
+      $this->pluginsByGroup[$group_name] = $contextual_links;
+    }
+    return $contextual_links;
+  }
+
+  /**
+   * {@inheritdoc}
+   */
+  public function getContextualLinksArrayByGroup($group_name, array $route_parameters, array $metadata = []) {
+    $links = [];
+    $request = $this->requestStack->getCurrentRequest();
+    foreach ($this->getContextualLinkPluginsByGroup($group_name) as $plugin_id => $plugin_definition) {
+      /** @var $plugin \Drupal\Core\Menu\ContextualLinkInterface */
+      $plugin = $this->createInstance($plugin_id);
+      $route_name = $plugin->getRouteName();
+
+      // Check access.
+      if (!$this->accessManager->checkNamedRoute($route_name, $route_parameters, $this->account)) {
+        continue;
+      }
+
+      $links[$plugin_id] = [
+        'route_name' => $route_name,
+        'route_parameters' => $route_parameters,
+        'title' => $plugin->getTitle($request),
+        'weight' => $plugin->getWeight(),
+        'localized_options' => $plugin->getOptions(),
+        'metadata' => $metadata,
+      ];
+    }
+
+    $this->moduleHandler->alter('contextual_links', $links, $group_name, $route_parameters);
+
+    return $links;
+  }
+
+}