Automattic\WooCommerce\EmailEditorVendor\Symfony\Component\CssSelector

CssSelectorConverter{} │ WC 1.0

CssSelectorConverter is the main entry point of the component and can convert CSS selectors to XPath expressions.

Хуков нет.

Использование

$CssSelectorConverter = new CssSelectorConverter();
// use class methods

Методы

1. public __construct(bool $html = true)
2. public toXPath(string $cssExpr, string $prefix = 'descendant-or-self::')
3. ERROR: no method name found on line ``
4. ERROR: no method name found on line `* Translates a CSS expression to its XPath equivalent.`

Код CssSelectorConverter{} CssSelectorConverter{} ^{WC 11.2.2}

class CssSelectorConverter
{
    private $translator;
    private $cache;

    /**
     * Maximum number of cached items per prefix before LRU eviction kicks in.
     *
     * @var int
     */
    public static $maxCachedItems = 200;

    private static $xmlCache = [];
    private static $htmlCache = [];

    /**
     * @param bool $html Whether HTML support should be enabled. Disable it for XML documents
     */
    public function __construct(bool $html = true)
    {
        $this->translator = new Translator();

        if ($html) {
            $this->translator->registerExtension(new HtmlExtension($this->translator));
            $this->cache = &self::$htmlCache;
        } else {
            $this->cache = &self::$xmlCache;
        }

        $this->translator
            ->registerParserShortcut(new EmptyStringParser())
            ->registerParserShortcut(new ElementParser())
            ->registerParserShortcut(new ClassParser())
            ->registerParserShortcut(new HashParser())
        ;
    }

    /**
     * Translates a CSS expression to its XPath equivalent.
     *
     * Optionally, a prefix can be added to the resulting XPath
     * expression with the $prefix parameter.
     *
     * @return string
     */
    public function toXPath(string $cssExpr, string $prefix = 'descendant-or-self::')
    {
        if (isset($this->cache[$prefix][$cssExpr])) {
            // Promote to most-recently-used position.
            $value = $this->cache[$prefix][$cssExpr];
            unset($this->cache[$prefix][$cssExpr]);

            return $this->cache[$prefix][$cssExpr] = $value;
        }

        $value = $this->translator->cssToXPath($cssExpr, $prefix);

        if (\count($this->cache[$prefix] ?? []) >= self::$maxCachedItems) {
            // Evict least-recently-used entry.
            unset($this->cache[$prefix][\array_key_first($this->cache[$prefix])]);
        }

        return $this->cache[$prefix][$cssExpr] = $value;
    }
}