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