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<?php |
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|
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namespace Elementor\Modules\AtomicWidgets\CssConverter; |
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|
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if ( ! defined( 'ABSPATH' ) ) { |
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exit; // Exit if accessed directly. |
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} |
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|
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abstract class Shorthand_Expander_Base implements Shorthand_Expander { |
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/** |
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* Exact, enumerated shorthand property names this expander owns. |
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* |
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* @return string[] |
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*/ |
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abstract protected function get_supported_properties(): array; |
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|
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public function is_supported( array $rule ): bool { |
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$property = $rule['property'] ?? null; |
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|
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if ( ! is_string( $property ) || '' === $property ) { |
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return false; |
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} |
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|
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return in_array( $property, $this->get_supported_properties(), true ); |
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} |
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|
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public function expand( array $rule ): array { |
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if ( null === $rule['value'] ) { |
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return $this->expand_null( $rule ); |
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} |
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|
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return $this->do_expand( $rule ); |
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} |
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|
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/** |
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* Override to fan out null resets to all longhand properties. |
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* Default: re-emit the same property with a null value (covers simple renamers). |
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* |
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* @return array<int, array{property: string, value: null, declaration: string}> |
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*/ |
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protected function expand_null( array $rule ): array { |
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return [ $this->null_rule( $rule['property'] ) ]; |
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} |
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|
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/** |
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* @return array{property: string, value: null, declaration: string} |
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*/ |
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protected function null_rule( string $property ): array { |
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return [ |
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'property' => $property, |
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'value' => null, |
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'declaration' => $property . ': ', |
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]; |
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} |
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|
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/** |
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* @param array{property: string, value: string} $rule A rule with a guaranteed non-null value. |
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* @return array<int, array{property: string, value: string, declaration: string}> |
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*/ |
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abstract protected function do_expand( array $rule ): array; |
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} |
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|
