recentcollection.php

<?
 
namespace Bitrix\UI\EntitySelector;
 
class RecentCollection implements \IteratorAggregate, \JsonSerializable
{
    private $items = [];
    private $itemsByEntity = [];
 
    public function __construct()
    {
    }
 
    public function add(RecentItem $recentItem)
    {
        if ($this->has($recentItem))
        {
            return;
        }
 
        if (!isset($this->itemsByEntity[$recentItem->getEntityId()]))
        {
            $this->itemsByEntity[$recentItem->getEntityId()] = [];
        }
 
        $this->itemsByEntity[$recentItem->getEntityId()][$recentItem->getId()] = $recentItem;
        $this->items[] = $recentItem;
    }
 
    public function get(string $entityId, $itemId): ?RecentItem
    {
        return $this->itemsByEntity[$entityId][$itemId] ?? null;
    }
 
    public function has(RecentItem $recentItem): bool
    {
        return isset($this->itemsByEntity[$recentItem->getEntityId()][$recentItem->getId()]);
    }
 
    public function getByItem(Item $item): ?RecentItem
    {
        return $this->itemsByEntity[$item->getEntityId()][$item->getId()] ?? null;
    }
 
    public function getAll(): array
    {
        return $this->items;
    }
 
    public function count(): int
    {
        return count($this->items);
    }
 
    public function getEntityItems(string $entityId): array
    {
        return $this->itemsByEntity[$entityId] ?? [];
    }
 
    public function jsonSerialize()
    {
        return array_values(array_filter($this->items, function(RecentItem $recentItem) {
            return $recentItem->isLoaded() && $recentItem->isAvailable();
        }));
    }
 
    public function getIterator(): \ArrayIterator
    {
        return new \ArrayIterator($this->items);
    }
}