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| 1 | <?php |
| 2 | |
| 3 | namespace Wikimedia\Zest; |
| 4 | |
| 5 | use DOMDocument; |
| 6 | use DOMDocumentFragment; |
| 7 | use DOMElement; |
| 8 | use DOMNode; |
| 9 | |
| 10 | /** |
| 11 | * Zest.php (https://github.com/wikimedia/zest.php) |
| 12 | * Copyright (c) 2019, C. Scott Ananian. (MIT licensed) |
| 13 | * PHP port based on: |
| 14 | * |
| 15 | * Zest (https://github.com/chjj/zest) |
| 16 | * A css selector engine. |
| 17 | * Copyright (c) 2011-2012, Christopher Jeffrey. (MIT Licensed) |
| 18 | * Domino version based on Zest v0.1.3 with bugfixes applied. |
| 19 | */ |
| 20 | |
| 21 | class Zest { |
| 22 | |
| 23 | /** @var ZestInst */ |
| 24 | private static $singleton = null; |
| 25 | |
| 26 | private static function singleton() { |
| 27 | if ( !self::$singleton ) { |
| 28 | self::$singleton = new ZestInst(); |
| 29 | } |
| 30 | return self::$singleton; |
| 31 | } |
| 32 | |
| 33 | /** |
| 34 | * Find elements matching a CSS selector underneath $context. |
| 35 | * @param string $sel The CSS selector string |
| 36 | * @param DOMDocument|DOMDocumentFragment|DOMElement $context |
| 37 | * The scoping root for the search |
| 38 | * @param array $opts Additional match-context options (optional) |
| 39 | * @return array Elements matching the CSS selector |
| 40 | */ |
| 41 | public static function find( string $sel, $context, array $opts = [] ): array { |
| 42 | return self::singleton()->find( $sel, $context, $opts ); |
| 43 | } |
| 44 | |
| 45 | /** |
| 46 | * Determine whether an element matches the given selector. |
| 47 | * @param DOMNode $el The element to be tested |
| 48 | * @param string $sel The CSS selector string |
| 49 | * @param array $opts Additional match-context options (optional) |
| 50 | * @return bool True iff the element matches the selector |
| 51 | */ |
| 52 | public static function matches( $el, string $sel, array $opts = [] ): bool { |
| 53 | return self::singleton()->matches( $el, $sel, $opts ); |
| 54 | } |
| 55 | |
| 56 | /** |
| 57 | * Get descendants by ID. |
| 58 | * The PHP DOM doesn't provide this method for DOMElement, and the |
| 59 | * implementation in DOMDocument is broken. |
| 60 | * |
| 61 | * @param DOMDocument|DOMDocumentFragment|DOMElement $context |
| 62 | * The scoping root for the search |
| 63 | * @param string $id |
| 64 | * @param array $opts Additional match-context options (optional) |
| 65 | * @return array<DOMElement> A list of the elements with the given ID. When there are more |
| 66 | * than one, this method might return all of them or only the first one. |
| 67 | */ |
| 68 | public static function getElementsById( $context, string $id, array $opts = [] ): array { |
| 69 | return self::singleton()->getElementsById( $context, $id, $opts ); |
| 70 | } |
| 71 | |
| 72 | /** |
| 73 | * Get descendants by tag name. |
| 74 | * The PHP DOM doesn't provide this method for DOMElement, and the |
| 75 | * implementation in DOMDocument has performance issues. |
| 76 | * |
| 77 | * @param DOMDocument|DOMDocumentFragment|DOMElement $context |
| 78 | * @param string $tagName |
| 79 | * @param array $opts Additional match-context options (optional) |
| 80 | * @return array<DOMElement> |
| 81 | */ |
| 82 | public static function getElementsByTagName( $context, string $tagName, array $opts = [] ) { |
| 83 | return self::singleton()->getElementsByTagName( $context, $tagName, $opts ); |
| 84 | } |
| 85 | |
| 86 | } |