ActiveWorkspaceCheck.php

<?php

namespace Drupal\workspaces\Access;

use Drupal\Core\Access\AccessResult;
use Drupal\Core\Routing\Access\AccessInterface;
use Drupal\workspaces\WorkspaceManagerInterface;
use Symfony\Component\Routing\Route;

/**
 * Determines access to routes based on the presence of an active workspace.
 */
class ActiveWorkspaceCheck implements AccessInterface {
    
    /**
     * The workspace manager.
     *
     * @var \Drupal\workspaces\WorkspaceManagerInterface
     */
    protected $workspaceManager;
    
    /**
     * Constructs a new ActiveWorkspaceCheck.
     *
     * @param \Drupal\workspaces\WorkspaceManagerInterface $workspace_manager
     *   The workspace manager.
     */
    public function __construct(WorkspaceManagerInterface $workspace_manager) {
        $this->workspaceManager = $workspace_manager;
    }
    
    /**
     * Checks access.
     *
     * @param \Symfony\Component\Routing\Route $route
     *   The route to check against.
     *
     * @return \Drupal\Core\Access\AccessResultInterface
     *   The access result.
     */
    public function access(Route $route) {
        if (!$route->hasRequirement('_has_active_workspace')) {
            return AccessResult::neutral();
        }
        $required_value = filter_var($route->getRequirement('_has_active_workspace'), FILTER_VALIDATE_BOOLEAN);
        return AccessResult::allowedIf($required_value === $this->workspaceManager
            ->hasActiveWorkspace())
            ->addCacheContexts([
            'workspace',
        ]);
    }

}