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<?php |
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/** |
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* Adds the Webfont Loader to load fonts asyncronously. |
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* |
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* @package Kirki |
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* @category Core |
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* @author Aristeides Stathopoulos |
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* @copyright Copyright (c) 2017, Aristeides Stathopoulos |
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* @license http://opensource.org/licenses/https://opensource.org/licenses/MIT |
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* @since 3.0 |
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*/ |
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/** |
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* Manages the way Google Fonts are enqueued. |
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*/ |
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final class Kirki_Modules_Webfonts_Async { |
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/** |
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* The config ID. |
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* |
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* @access protected |
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* @since 3.0.0 |
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* @var string |
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*/ |
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protected $config_id; |
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/** |
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* The Kirki_Modules_Webfonts object. |
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* |
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* @access protected |
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* @since 3.0.0 |
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* @var object |
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*/ |
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protected $webfonts; |
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/** |
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* The Kirki_Fonts_Google object. |
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* |
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* @access protected |
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* @since 3.0.0 |
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* @var object |
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*/ |
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protected $googlefonts; |
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/** |
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* Constructor. |
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* |
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* @access public |
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* @since 3.0 |
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* @param string $config_id The config-ID. |
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* @param object $webfonts The Kirki_Modules_Webfonts object. |
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* @param object $googlefonts The Kirki_Fonts_Google object. |
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* @param array $args Extra args we want to pass. |
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*/ |
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public function __construct( $config_id, $webfonts, $googlefonts, $args = array() ) { |
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$this->config_id = $config_id; |
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$this->webfonts = $webfonts; |
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$this->googlefonts = $googlefonts; |
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add_action( 'wp_head', array( $this, 'webfont_loader' ) ); |
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add_filter( 'wp_resource_hints', array( $this, 'resource_hints' ), 10, 2 ); |
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} |
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/** |
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* Add preconnect for Google Fonts. |
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* |
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* @access public |
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* @param array $urls URLs to print for resource hints. |
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* @param string $relation_type The relation type the URLs are printed. |
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* @return array $urls URLs to print for resource hints. |
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*/ |
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public function resource_hints( $urls, $relation_type ) { |
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$fonts_to_load = $this->googlefonts->fonts; |
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if ( ! empty( $fonts_to_load ) && 'preconnect' === $relation_type ) { |
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$urls[] = array( |
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'href' => 'https://fonts.gstatic.com', |
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'crossorigin', |
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); |
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} |
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return $urls; |
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} |
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/** |
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* Webfont Loader for Google Fonts. |
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* |
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* @access public |
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* @since 3.0.0 |
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*/ |
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public function webfont_loader() { |
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// Go through our fields and populate $this->fonts. |
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$this->webfonts->loop_fields( $this->config_id ); |
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$this->googlefonts->fonts = apply_filters( 'kirki_enqueue_google_fonts', $this->googlefonts->fonts ); |
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// Goes through $this->fonts and adds or removes things as needed. |
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$this->googlefonts->process_fonts(); |
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$fonts_to_load = array(); |
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foreach ( $this->googlefonts->fonts as $font => $weights ) { |
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foreach ( $weights as $key => $value ) { |
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if ( 'italic' === $value ) { |
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$weights[ $key ] = '400i'; |
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} else { |
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$weights[ $key ] = str_replace( array( 'regular', 'bold', 'italic' ), array( '400', '', 'i' ), $value ); |
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} |
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} |
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$fonts_to_load[] = $font . ':' . join( ',', $weights ) . ':cyrillic,cyrillic-ext,devanagari,greek,greek-ext,khmer,latin,latin-ext,vietnamese,hebrew,arabic,bengali,gujarati,tamil,telugu,thai'; |
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} |
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wp_enqueue_script( 'webfont-loader', 'https://ajax.googleapis.com/ajax/libs/webfont/1.6.26/webfont.js', array(), KIRKI_VERSION ); |
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if ( empty( $fonts_to_load ) ) { |
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return; |
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} |
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wp_add_inline_script( |
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'webfont-loader', |
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'WebFont.load({google:{families:[\'' . join( '\', \'', $fonts_to_load ) . '\']}});', |
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'after' |
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); |
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} |
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} |
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aristath /
kirki
This check looks for parameters that have been defined for a function or method, but which are not used in the method body.