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<?php /** * Border block support flag. * * @package WordPress * @since 5.8.0 */ /** * Registers the style attribute used by the border feature if needed for block * types that support borders. * * @since 5.8.0 * @since 6.1.0 Improved conditional blocks optimization. * @access private * * @param WP_Block_Type $block_type Block Type. */ function wp_register_border_support( $block_type ) { // Setup attributes and styles within that if needed. if ( ! $block_type->attributes ) { $block_type->attributes = array(); } if ( block_has_support( $block_type, '__experimentalBorder' ) && ! array_key_exists( 'style', $block_type->attributes ) ) { $block_type->attributes['style'] = array( 'type' => 'object', ); } if ( wp_has_border_feature_support( $block_type, 'color' ) && ! array_key_exists( 'borderColor', $block_type->attributes ) ) { $block_type->attributes['borderColor'] = array( 'type' => 'string', ); } } /** * Adds CSS classes and inline styles for border styles to the incoming * attributes array. This will be applied to the block markup in the front-end. * * @since 5.8.0 * @since 6.1.0 Implemented the style engine to generate CSS and classnames. * @access private * * @param WP_Block_Type $block_type Block type. * @param array $block_attributes Block attributes. * @return array Border CSS classes and inline styles. */ function wp_apply_border_support( $block_type, $block_attributes ) { if ( wp_should_skip_block_supports_serialization( $block_type, 'border' ) ) { return array(); } $border_block_styles = array(); $has_border_color_support = wp_has_border_feature_support( $block_type, 'color' ); $has_border_width_support = wp_has_border_feature_support( $block_type, 'width' ); // Border radius. if ( wp_has_border_feature_support( $block_type, 'radius' ) && isset( $block_attributes['style']['border']['radius'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'radius' ) ) { $border_radius = $block_attributes['style']['border']['radius']; if ( is_numeric( $border_radius ) ) { $border_radius .= 'px'; } $border_block_styles['radius'] = $border_radius; } // Border style. if ( wp_has_border_feature_support( $block_type, 'style' ) && isset( $block_attributes['style']['border']['style'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'style' ) ) { $border_block_styles['style'] = $block_attributes['style']['border']['style']; } // Border width. if ( $has_border_width_support && isset( $block_attributes['style']['border']['width'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'width' ) ) { $border_width = $block_attributes['style']['border']['width']; // This check handles original unitless implementation. if ( is_numeric( $border_width ) ) { $border_width .= 'px'; } $border_block_styles['width'] = $border_width; } // Border color. if ( $has_border_color_support && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'color' ) ) { $preset_border_color = array_key_exists( 'borderColor', $block_attributes ) ? "var:preset|color|{$block_attributes['borderColor']}" : null; $custom_border_color = isset( $block_attributes['style']['border']['color'] ) ? $block_attributes['style']['border']['color'] : null; $border_block_styles['color'] = $preset_border_color ? $preset_border_color : $custom_border_color; } // Generates styles for individual border sides. if ( $has_border_color_support || $has_border_width_support ) { foreach ( array( 'top', 'right', 'bottom', 'left' ) as $side ) { $border = isset( $block_attributes['style']['border'][ $side ] ) ? $block_attributes['style']['border'][ $side ] : null; $border_side_values = array( 'width' => isset( $border['width'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'width' ) ? $border['width'] : null, 'color' => isset( $border['color'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'color' ) ? $border['color'] : null, 'style' => isset( $border['style'] ) && ! wp_should_skip_block_supports_serialization( $block_type, '__experimentalBorder', 'style' ) ? $border['style'] : null, ); $border_block_styles[ $side ] = $border_side_values; } } // Collect classes and styles. $attributes = array(); $styles = wp_style_engine_get_styles( array( 'border' => $border_block_styles ) ); if ( ! empty( $styles['classnames'] ) ) { $attributes['class'] = $styles['classnames']; } if ( ! empty( $styles['css'] ) ) { $attributes['style'] = $styles['css']; } return $attributes; } /** * Checks whether the current block type supports the border feature requested. * * If the `__experimentalBorder` support flag is a boolean `true` all border * support features are available. Otherwise, the specific feature's support * flag nested under `experimentalBorder` must be enabled for the feature * to be opted into. * * @since 5.8.0 * @access private * * @param WP_Block_Type $block_type Block type to check for support. * @param string $feature Name of the feature to check support for. * @param mixed $default_value Fallback value for feature support, defaults to false. * @return bool Whether the feature is supported. */ function wp_has_border_feature_support( $block_type, $feature, $default_value = false ) { // Check if all border support features have been opted into via `"__experimentalBorder": true`. if ( $block_type instanceof WP_Block_Type ) { $block_type_supports_border = isset( $block_type->supports['__experimentalBorder'] ) ? $block_type->supports['__experimentalBorder'] : $default_value; if ( true === $block_type_supports_border ) { return true; } } // Check if the specific feature has been opted into individually // via nested flag under `__experimentalBorder`. return block_has_support( $block_type, array( '__experimentalBorder', $feature ), $default_value ); } // Register the block support. WP_Block_Supports::get_instance()->register( 'border', array( 'register_attribute' => 'wp_register_border_support', 'apply' => 'wp_apply_border_support', ) );