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<?php |
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|
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/* |
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* This file is part of the Symfony package. |
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* |
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* (c) Fabien Potencier <fabien@symfony.com> |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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|
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namespace Symfony\Component\CssSelector\Node; |
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|
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/** |
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* Represents a node specificity. |
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* |
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* This component is a port of the Python cssselect library, |
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* which is copyright Ian Bicking, @see https://github.com/SimonSapin/cssselect. |
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* |
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* @see http://www.w3.org/TR/selectors/#specificity |
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* |
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* @author Jean-François Simon <jeanfrancois.simon@sensiolabs.com> |
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* |
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* @internal |
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*/ |
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class Specificity |
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{ |
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const A_FACTOR = 100; |
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const B_FACTOR = 10; |
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const C_FACTOR = 1; |
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|
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private $a; |
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private $b; |
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private $c; |
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|
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public function __construct(int $a, int $b, int $c) |
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{ |
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$this->a = $a; |
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$this->b = $b; |
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$this->c = $c; |
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} |
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|
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public function plus(self $specificity): self |
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{ |
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return new self($this->a + $specificity->a, $this->b + $specificity->b, $this->c + $specificity->c); |
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} |
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|
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public function getValue(): int |
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{ |
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return $this->a * self::A_FACTOR + $this->b * self::B_FACTOR + $this->c * self::C_FACTOR; |
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} |
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|
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/** |
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* Returns -1 if the object specificity is lower than the argument, |
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* 0 if they are equal, and 1 if the argument is lower. |
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*/ |
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public function compareTo(self $specificity): int |
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{ |
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if ($this->a !== $specificity->a) { |
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return $this->a > $specificity->a ? 1 : -1; |
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} |
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|
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if ($this->b !== $specificity->b) { |
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return $this->b > $specificity->b ? 1 : -1; |
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} |
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|
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if ($this->c !== $specificity->c) { |
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return $this->c > $specificity->c ? 1 : -1; |
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} |
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|
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return 0; |
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} |
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} |
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|
