supports, array( '__experimentalFontSize' ), false ); } $has_font_style_support = false; if ( property_exists( $block_type, 'supports' ) ) { $has_font_style_support = wp_array_get( $block_type->supports, array( '__experimentalFontStyle' ), 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_font_style_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. * * @param array $attributes Comprehensive list of attributes to be applied. * @param array $block_attributes Block attributes. * @param WP_Block_Type $block_type Block type. * * @return array Font size CSS classes and inline styles. */ function wp_apply_typography_support( $attributes, $block_attributes, $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_font_style_support = false; if ( property_exists( $block_type, 'supports' ) ) { $has_font_style_support = wp_array_get( $block_type->supports, array( '__experimentalFontStyle' ), 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 ); } // 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 ) { $attributes['css_classes'][] = sprintf( 'has-%s-font-size', $block_attributes['fontSize'] ); } elseif ( $has_custom_font_size ) { $attributes['inline_styles'][] = sprintf( 'font-size: %spx;', $block_attributes['style']['typography']['fontSize'] ); } } // Font Styles e.g. bold, italic, underline & strikethrough. if ( $has_font_style_support ) { $has_font_styles = isset( $block_attributes['style']['typography']['fontStyles'] ); // Apply required CSS classes. if ( $has_font_styles ) { $attributes['css_classes'][] = 'has-font-style'; // CSS class names chosen to be more explicit than generic `has--font-style`. $font_style_classes = array( 'bold' => 'has-bold-font-weight', 'italic' => 'has-italic-font-style', 'underline' => 'has-underline-text-decoration', 'strikethrough' => 'has-strikethrough-text-decoration', ); $style_selections = $block_attributes['style']['typography']['fontStyles']; foreach ( $style_selections as $style => $turned_on ) { if ( $turned_on ) { $attributes['css_classes'][] = $font_style_classes[ $style ]; } } } } // 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 ) { $attributes['inline_styles'][] = sprintf( 'line-height: %s;', $block_attributes['style']['typography']['lineHeight'] ); } } return $attributes; }