1, 'block' => 1, 'swap' => 1, 'fallback' => 1, 'optional' => 1, ]; /** * Flag for whether google fonts have been detected (Default: true) * * @since 3.8.8 * * @var bool */ protected $has_google_fonts = true; /** * Optimize Google Fonts * * @param string $html HTML content. * * @return string */ abstract public function optimize( $html ): string; /** * Check whether the optimizer has found google fonts on the page. * * @since 3.8.8 * * @return bool Will default to true when extending classes have not set via the optimize() method. */ public function has_google_fonts() { return $this->has_google_fonts; } /** * Returns font with display value. * * @since 3.8 Moved here from GoogleFonts\Combine::class * @since 3.5.1 * * @param array $font Array containing font tag and matches. * * @return string Google Font tag with display param. */ protected function get_font_with_display( array $font ) { $font_url = html_entity_decode( $font['url'] ); $query = wp_parse_url( $font_url, PHP_URL_QUERY ); if ( empty( $query ) ) { return $font[0]; } $parsed_font = wp_parse_args( $query ); $font_url = ! empty( $parsed_font['display'] ) ? str_replace( "&display={$parsed_font['display']}", '&display=swap', $font_url ) : "{$font_url}&display=swap"; return str_replace( $font['url'], esc_url( $font_url ), $font[0] ); } /** * Get the font display value. * * @since 3.8 Moved here from GoogleFonts\Combine::class * @since 3.5.1 * * @return string font display value. */ protected function get_font_display_value(): string { /** * Filters the combined Google Fonts display parameter value * * @since 3.8 Moved here from GoogleFonts\Combine::class * @since 3.3.5 * * @param string $display Display value. Can be either auto, block, swap, fallback or optional. */ $display = wpm_apply_filters_typed( 'string', 'rocket_combined_google_fonts_display', 'swap' ); return isset( $this->display_values[ $display ] ) ? $display : 'swap'; } /** * Check if preload google fonts is enabled or not using filter. * * @return bool */ protected function is_preload_enabled() { return ! wpm_apply_filters_typed( 'boolean', 'rocket_disable_google_fonts_preload', false ); } /** * Prepare preload fonts to the head items. * * @param array $fonts Fonts list. * @param array $items Head items. * @return array */ protected function prepare_preload_fonts_to_head( array $fonts, array $items ): array { foreach ( $fonts as $font_url ) { $items[] = $this->preload_link( [ 'href' => $font_url, 'as' => 'style', ] ); } return $items; } /** * Prepare stylesheets to the head. * * @param array $fonts Fonts list. * @param array $items Head items. * @return array */ protected function prepare_stylesheet_fonts_to_head( array $fonts, array $items ): array { $preload_enabled = $this->is_preload_enabled(); foreach ( $fonts as $font_url ) { $item = $this->stylesheet_link( [ 'href' => $font_url, ] ); if ( ! $preload_enabled ) { $items[] = $item; continue; } $item['media'] = 'print'; $item['onload'] = "this.media='all'"; $items[] = $item; $items[] = $this->noscript_tag( sprintf( '', $font_url ), // phpcs:ignore WordPress.WP.EnqueuedResources.NonEnqueuedStylesheet [ 'data-wpr-hosted-gf-parameters' => '', ] ); } return $items; } /** * Insert font stylesheets into head. * * @param array $items Head elements. * @return mixed */ public function insert_font_stylesheet_into_head( $items ) { return $items; } /** * Insert font preloads into head. * * @param array $items Head elements. * @return mixed */ public function insert_font_preload_into_head( $items ) { return $items; } }