107 lines
3.2 KiB
PHP
107 lines
3.2 KiB
PHP
<?php
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/**
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* Typography block support flag.
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*
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* @package WordPress
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*/
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/**
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* Registers the style and typography block attributes for block types that support it.
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*
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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_typography_support( $block_type ) {
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$has_font_size_support = false;
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if ( property_exists( $block_type, 'supports' ) ) {
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$has_font_size_support = _wp_array_get( $block_type->supports, array( '__experimentalFontSize' ), false );
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}
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$has_line_height_support = false;
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if ( property_exists( $block_type, 'supports' ) ) {
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$has_line_height_support = _wp_array_get( $block_type->supports, array( '__experimentalLineHeight' ), false );
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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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if ( ( $has_font_size_support || $has_line_height_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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if ( $has_font_size_support && ! array_key_exists( 'fontSize', $block_type->attributes ) ) {
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$block_type->attributes['fontSize'] = 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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* Add CSS classes and inline styles for font sizes to the incoming attributes array.
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* This will be applied to the block markup in the front-end.
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*
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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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*
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* @return array Font size CSS classes and inline styles.
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*/
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function wp_apply_typography_support( $block_type, $block_attributes ) {
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$has_font_size_support = false;
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$classes = array();
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$styles = array();
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if ( property_exists( $block_type, 'supports' ) ) {
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$has_font_size_support = _wp_array_get( $block_type->supports, array( 'fontSize' ), false );
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}
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$has_line_height_support = false;
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if ( property_exists( $block_type, 'supports' ) ) {
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$has_line_height_support = _wp_array_get( $block_type->supports, array( 'lineHeight' ), false );
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}
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// Font Size.
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if ( $has_font_size_support ) {
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$has_named_font_size = array_key_exists( 'fontSize', $block_attributes );
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$has_custom_font_size = isset( $block_attributes['style']['typography']['fontSize'] );
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// Apply required class or style.
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if ( $has_named_font_size ) {
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$classes[] = sprintf( 'has-%s-font-size', $block_attributes['fontSize'] );
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} elseif ( $has_custom_font_size ) {
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$styles[] = sprintf( 'font-size: %spx;', $block_attributes['style']['typography']['fontSize'] );
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}
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}
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// Line Height.
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if ( $has_line_height_support ) {
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$has_line_height = isset( $block_attributes['style']['typography']['lineHeight'] );
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// Add the style (no classes for line-height).
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if ( $has_line_height ) {
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$styles[] = sprintf( 'line-height: %s;', $block_attributes['style']['typography']['lineHeight'] );
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}
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}
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$attributes = array();
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if ( ! empty( $classes ) ) {
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$attributes['class'] = implode( ' ', $classes );
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}
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if ( ! empty( $styles ) ) {
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$attributes['style'] = implode( ' ', $styles );
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}
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return $attributes;
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}
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WP_Block_Supports::get_instance()->register(
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'typography',
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array(
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'register_attribute' => 'wp_register_typography_support',
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'apply' => 'wp_apply_typography_support',
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)
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);
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