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<?php |
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/** |
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* Shadow block support flag. |
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* |
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* @package gutenberg |
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*/ |
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|
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/** |
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* Registers the style and shadow block attributes for block types that support it. |
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* |
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* @param WP_Block_Type $block_type Block Type. |
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*/ |
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function gutenberg_register_shadow_support( $block_type ) { |
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$has_shadow_support = block_has_support( $block_type, array( 'shadow' ), false ); |
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|
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if ( ! $has_shadow_support ) { |
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return; |
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} |
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|
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if ( ! $block_type->attributes ) { |
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$block_type->attributes = array(); |
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} |
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|
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if ( $has_shadow_support && ! array_key_exists( 'style', $block_type->attributes ) ) { |
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$block_type->attributes['style'] = array( |
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'type' => 'object', |
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); |
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} |
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|
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if ( $has_shadow_support && ! array_key_exists( 'shadow', $block_type->attributes ) ) { |
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$block_type->attributes['shadow'] = array( |
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'type' => 'string', |
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); |
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} |
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} |
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|
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/** |
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* Add CSS classes and inline styles for shadow features to the incoming attributes array. |
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* This will be applied to the block markup in |
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* the front-end. |
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* |
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* @param WP_Block_Type $block_type Block type. |
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* @param array $block_attributes Block attributes. |
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* |
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* @return array Shadow CSS classes and inline styles. |
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*/ |
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function gutenberg_apply_shadow_support( $block_type, $block_attributes ) { |
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$has_shadow_support = block_has_support( $block_type, array( 'shadow' ), false ); |
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|
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if ( |
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! $has_shadow_support || |
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wp_should_skip_block_supports_serialization( $block_type, 'shadow' ) |
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) { |
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return array(); |
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} |
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|
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$shadow_block_styles = array(); |
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|
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$custom_shadow = $block_attributes['style']['shadow'] ?? null; |
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$shadow_block_styles['shadow'] = $custom_shadow; |
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|
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$attributes = array(); |
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$styles = gutenberg_style_engine_get_styles( $shadow_block_styles ); |
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|
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if ( ! empty( $styles['css'] ) ) { |
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$attributes['style'] = $styles['css']; |
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} |
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|
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return $attributes; |
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} |
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|
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// Register the block support. |
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WP_Block_Supports::get_instance()->register( |
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'shadow', |
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array( |
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'register_attribute' => 'gutenberg_register_shadow_support', |
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'apply' => 'gutenberg_apply_shadow_support', |
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) |
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); |
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|
