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