776 lines
20 KiB
PHP
776 lines
20 KiB
PHP
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<?php
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/**
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* Download webfonts locally. Package from the WPTT Team.
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*
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* @package wptt/font-loader
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* @license https://opensource.org/licenses/MIT
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* @version 1.1
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*/
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namespace Kadence;
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use function Kadence\kadence;
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if ( ! class_exists( 'WebFont_Loader' ) ) {
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/**
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* Download webfonts locally.
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*/
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class WebFont_Loader {
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/**
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* The font-format.
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*
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* Use "woff" or "woff2".
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* This will change the user-agent user to make the request.
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*
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* @access protected
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* @since 1.0.0
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* @var string
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*/
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protected $font_format = 'woff2';
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/**
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* The remote URL.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $remote_url;
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/**
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* Base path.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $base_path;
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/**
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* Base URL.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $base_url;
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/**
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* Subfolder name.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $subfolder_name;
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/**
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* The fonts folder.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $fonts_folder;
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/**
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* The local stylesheet's path.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $local_stylesheet_path;
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/**
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* The local stylesheet's URL.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $local_stylesheet_url;
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/**
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* The remote CSS.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $remote_styles;
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/**
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* The final CSS.
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*
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* @access protected
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* @since 1.1.0
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* @var string
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*/
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protected $css;
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/**
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* Cleanup routine frequency.
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*/
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const CLEANUP_FREQUENCY = 'monthly';
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/**
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* Constructor.
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*
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* Get a new instance of the object for a new URL.
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*
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* @access public
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* @since 1.1.0
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* @param string $url The remote URL.
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*/
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public function __construct( $url = '' ) {
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$this->remote_url = $url;
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// Add a cleanup routine.
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$this->schedule_cleanup();
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add_action( 'delete_fonts_folder', array( $this, 'delete_fonts_folder' ) );
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}
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/**
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* Get the local URL which contains the styles.
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*
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* Fallback to the remote URL if we were unable to write the file locally.
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*
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* @access public
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* @since 1.1.0
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* @return string
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*/
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public function get_url() {
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// Check if the local stylesheet exists.
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if ( $this->local_file_exists() ) {
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// Attempt to update the stylesheet. Return the local URL on success.
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if ( $this->write_stylesheet() ) {
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return $this->get_local_stylesheet_url();
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}
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}
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// If the local file exists, return its URL, with a fallback to the remote URL.
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return file_exists( $this->get_local_stylesheet_path() )
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? $this->get_local_stylesheet_url()
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: $this->remote_url;
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}
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/**
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* Get the local stylesheet URL.
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*
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* @access public
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* @since 1.1.0
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* @return string
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*/
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public function get_local_stylesheet_url() {
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if ( ! $this->local_stylesheet_url ) {
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$this->local_stylesheet_url = str_replace(
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$this->get_base_path(),
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$this->get_base_url(),
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$this->get_local_stylesheet_path()
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);
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}
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return $this->local_stylesheet_url;
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}
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/**
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* Get styles with fonts downloaded locally.
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*
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* @access public
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* @since 1.0.0
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* @return string
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*/
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public function get_styles() {
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// If we already have the local file, return its contents.
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$local_stylesheet_contents = $this->get_local_stylesheet_contents();
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if ( $local_stylesheet_contents ) {
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return $local_stylesheet_contents;
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}
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// Get the remote URL contents.
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$this->remote_styles = $this->get_remote_url_contents();
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// Get an array of locally-hosted files.
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$files = $this->get_local_files_from_css();
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// Convert paths to URLs.
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foreach ( $files as $remote => $local ) {
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$files[ $remote ] = str_replace(
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$this->get_base_path(),
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$this->get_base_url(),
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$local
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);
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}
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$this->css = str_replace(
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array_keys( $files ),
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array_values( $files ),
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$this->remote_styles
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);
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$this->write_stylesheet();
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return $this->css;
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}
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/**
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* Get the font files and preload them.
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*
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* @access public
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*/
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public function print_preload_fonts() {
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// Make sure variables are set.
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// Get the remote URL contents.
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$styles = $this->get_styles();
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// Get an array of locally-hosted files.
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$local = array();
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$font_files = $this->get_main_files_from_css( $styles );
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foreach ( $font_files as $font_family => $files ) {
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if ( is_array( $files ) ) {
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foreach ( $files as $key => $single_file ) {
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$local[] = $single_file;
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}
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}
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}
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foreach ( $local as $key => $local ) {
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if ( $local ) {
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echo '<link rel="preload" href="' . esc_url( $local ) . '" as="font" type="font/' . esc_attr( $this->font_format ) . '" crossorigin>';
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}
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}
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}
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/**
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* Get font files from the CSS.
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*
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* @access public
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* @since 1.0.0
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* @return array Returns an array of font-families and the font-files used.
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*/
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public function get_main_files_from_css( $css ) {
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//Capture Latin Subsets.
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$main_fonts = explode( '* latin */', $css );
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// Remove first item in array (that doesn't contain a latin subset).
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array_shift( $main_fonts );
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$result = array();
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// Loop all our latin subset chucks declarations.
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foreach ( $main_fonts as $key => $main_font ) {
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// Capture sections by @font-face.
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$font_faces = explode( '@font-face', $main_font );
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// Make sure it's not empty.
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if ( isset( $font_faces[1] ) && ! empty( $font_faces[1] ) ) {
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// Make sure we only process styles inside this declaration.
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$style = explode( '}', $font_faces[1] )[0];
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// Sanity check.
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if ( false === strpos( $style, 'font-family' ) ) {
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continue;
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}
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// Get an array of our font-families.
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preg_match_all( '/font-family.*?\;/', $style, $matched_font_families );
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// Get an array of our font-files.
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preg_match_all( '/url\(.*?\)/i', $style, $matched_font_files );
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// Get the font-family name.
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$font_family = 'unknown';
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if ( isset( $matched_font_families[0] ) && isset( $matched_font_families[0][0] ) ) {
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$font_family = rtrim( ltrim( $matched_font_families[0][0], 'font-family:' ), ';' );
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$font_family = trim( str_replace( array( "'", ';' ), '', $font_family ) );
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$font_family = sanitize_key( strtolower( str_replace( ' ', '-', $font_family ) ) );
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}
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// Make sure the font-family is set in our array.
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if ( ! isset( $result[ $font_family ] ) ) {
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$result[ $font_family ] = array();
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}
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// Get files for this font-family and add them to the array.
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foreach ( $matched_font_files as $match ) {
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// Sanity check.
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if ( ! isset( $match[0] ) ) {
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continue;
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}
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// Add the file URL.
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$result[ $font_family ][] = rtrim( ltrim( $match[0], 'url(' ), ')' );
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}
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// Make sure we have unique items.
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// We're using array_flip here instead of array_unique for improved performance.
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$result[ $font_family ] = array_flip( array_flip( $result[ $font_family ] ) );
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}
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}
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return $result;
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}
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/**
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* Get local stylesheet contents.
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*
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* @access public
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* @since 1.1.0
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* @return string|false Returns the remote URL contents.
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*/
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public function get_local_stylesheet_contents() {
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$local_path = $this->get_local_stylesheet_path();
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// Check if the local stylesheet exists.
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if ( $this->local_file_exists() ) {
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// Attempt to update the stylesheet. Return false on fail.
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if ( ! $this->write_stylesheet() ) {
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return false;
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}
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}
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ob_start();
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include $local_path;
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return ob_get_clean();
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}
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/**
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* Get remote file contents.
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*
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* @access public
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* @since 1.0.0
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* @return string Returns the remote URL contents.
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*/
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public function get_remote_url_contents() {
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/**
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* The user-agent we want to use.
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*
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* The default user-agent is the only one compatible with woff (not woff2)
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* which also supports unicode ranges.
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*/
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$user_agent = 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_5) AppleWebKit/603.3.8 (KHTML, like Gecko) Version/10.1.2 Safari/603.3.8';
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// Switch to a user-agent supporting woff2 if we don't need to support IE.
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if ( 'woff2' === $this->font_format ) {
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$user_agent = 'Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:73.0) Gecko/20100101 Firefox/73.0';
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}
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// Get the response.
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$response = wp_remote_get( $this->remote_url, array( 'user-agent' => $user_agent ) );
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// Early exit if there was an error.
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if ( is_wp_error( $response ) || 200 !== (int) wp_remote_retrieve_response_code( $response ) ) {
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return '';
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}
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// Get the CSS from our response.
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$contents = wp_remote_retrieve_body( $response );
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// Early exit if there was an error.
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if ( is_wp_error( $contents ) ) {
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return;
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}
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return $contents;
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}
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/**
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* Download files mentioned in our CSS locally.
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*
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* @access public
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* @since 1.0.0
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* @return array Returns an array of remote URLs and their local counterparts.
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*/
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public function get_local_files_from_css() {
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$font_files = $this->get_remote_files_from_css();
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$stored = get_site_option( 'downloaded_font_files', array() );
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$change = false; // If in the end this is true, we need to update the cache option.
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// If the fonts folder don't exist, create it.
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if ( ! file_exists( $this->get_fonts_folder() ) ) {
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$this->get_filesystem()->mkdir( $this->get_fonts_folder(), FS_CHMOD_DIR );
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}
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foreach ( $font_files as $font_family => $files ) {
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// The folder path for this font-family.
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$folder_path = $this->get_fonts_folder() . '/' . $font_family;
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// If the folder doesn't exist, create it.
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if ( ! file_exists( $folder_path ) ) {
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$this->get_filesystem()->mkdir( $folder_path, FS_CHMOD_DIR );
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}
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foreach ( $files as $url ) {
|
||
|
|
|
||
|
|
// Get the filename.
|
||
|
|
$filename = basename( wp_parse_url( $url, PHP_URL_PATH ) );
|
||
|
|
$font_path = $folder_path . '/' . $filename;
|
||
|
|
|
||
|
|
// Check if the file already exists.
|
||
|
|
if ( file_exists( $font_path ) ) {
|
||
|
|
|
||
|
|
// Skip if already cached.
|
||
|
|
if ( isset( $stored[ $url ] ) ) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add file to the cache and change the $changed var to indicate we need to update the option.
|
||
|
|
$stored[ $url ] = $font_path;
|
||
|
|
$change = true;
|
||
|
|
|
||
|
|
// Since the file exists we don't need to proceed with downloading it.
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* If we got this far, we need to download the file.
|
||
|
|
*/
|
||
|
|
|
||
|
|
// require file.php if the download_url function doesn't exist.
|
||
|
|
if ( ! function_exists( 'download_url' ) ) {
|
||
|
|
require_once wp_normalize_path( ABSPATH . '/wp-admin/includes/file.php' );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Download file to temporary location.
|
||
|
|
$tmp_path = download_url( $url );
|
||
|
|
|
||
|
|
// Make sure there were no errors.
|
||
|
|
if ( is_wp_error( $tmp_path ) ) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Move temp file to final destination.
|
||
|
|
$success = $this->get_filesystem()->move( $tmp_path, $font_path, true );
|
||
|
|
if ( $success ) {
|
||
|
|
$stored[ $url ] = $font_path;
|
||
|
|
$change = true;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
// If there were changes, update the option.
|
||
|
|
if ( $change ) {
|
||
|
|
|
||
|
|
// Cleanup the option and then save it.
|
||
|
|
foreach ( $stored as $url => $path ) {
|
||
|
|
if ( ! file_exists( $path ) ) {
|
||
|
|
unset( $stored[ $url ] );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
update_site_option( 'downloaded_font_files', $stored );
|
||
|
|
}
|
||
|
|
|
||
|
|
return $stored;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get font files from the CSS.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.0.0
|
||
|
|
* @return array Returns an array of font-families and the font-files used.
|
||
|
|
*/
|
||
|
|
public function get_remote_files_from_css() {
|
||
|
|
|
||
|
|
$font_faces = explode( '@font-face', $this->remote_styles );
|
||
|
|
|
||
|
|
$result = array();
|
||
|
|
|
||
|
|
// Loop all our font-face declarations.
|
||
|
|
foreach ( $font_faces as $font_face ) {
|
||
|
|
|
||
|
|
// Make sure we only process styles inside this declaration.
|
||
|
|
$style = explode( '}', $font_face )[0];
|
||
|
|
|
||
|
|
// Sanity check.
|
||
|
|
if ( false === strpos( $style, 'font-family' ) ) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get an array of our font-families.
|
||
|
|
preg_match_all( '/font-family.*?\;/', $style, $matched_font_families );
|
||
|
|
|
||
|
|
// Get an array of our font-files.
|
||
|
|
preg_match_all( '/url\(.*?\)/i', $style, $matched_font_files );
|
||
|
|
|
||
|
|
// Get the font-family name.
|
||
|
|
$font_family = 'unknown';
|
||
|
|
if ( isset( $matched_font_families[0] ) && isset( $matched_font_families[0][0] ) ) {
|
||
|
|
$font_family = rtrim( ltrim( $matched_font_families[0][0], 'font-family:' ), ';' );
|
||
|
|
$font_family = trim( str_replace( array( "'", ';' ), '', $font_family ) );
|
||
|
|
$font_family = sanitize_key( strtolower( str_replace( ' ', '-', $font_family ) ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure the font-family is set in our array.
|
||
|
|
if ( ! isset( $result[ $font_family ] ) ) {
|
||
|
|
$result[ $font_family ] = array();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Get files for this font-family and add them to the array.
|
||
|
|
foreach ( $matched_font_files as $match ) {
|
||
|
|
|
||
|
|
// Sanity check.
|
||
|
|
if ( ! isset( $match[0] ) ) {
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Add the file URL.
|
||
|
|
$result[ $font_family ][] = rtrim( ltrim( $match[0], 'url(' ), ')' );
|
||
|
|
}
|
||
|
|
|
||
|
|
// Make sure we have unique items.
|
||
|
|
// We're using array_flip here instead of array_unique for improved performance.
|
||
|
|
$result[ $font_family ] = array_flip( array_flip( $result[ $font_family ] ) );
|
||
|
|
}
|
||
|
|
return $result;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Write the CSS to the filesystem.
|
||
|
|
*
|
||
|
|
* @access protected
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return string|false Returns the absolute path of the file on success, or false on fail.
|
||
|
|
*/
|
||
|
|
protected function write_stylesheet() {
|
||
|
|
$file_path = $this->get_local_stylesheet_path();
|
||
|
|
$filesystem = $this->get_filesystem();
|
||
|
|
|
||
|
|
// If the folder doesn't exist, create it.
|
||
|
|
if ( ! file_exists( $this->get_fonts_folder() ) ) {
|
||
|
|
$this->get_filesystem()->mkdir( $this->get_fonts_folder(), FS_CHMOD_DIR );
|
||
|
|
}
|
||
|
|
|
||
|
|
// If the file doesn't exist, create it. Return false if it can not be created.
|
||
|
|
if ( ! $filesystem->exists( $file_path ) && ! $filesystem->touch( $file_path ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
// If we got this far, we need to write the file.
|
||
|
|
// Get the CSS.
|
||
|
|
if ( ! $this->css ) {
|
||
|
|
$this->get_styles();
|
||
|
|
}
|
||
|
|
|
||
|
|
// Put the contents in the file. Return false if that fails.
|
||
|
|
if ( ! $filesystem->put_contents( $file_path, $this->css ) ) {
|
||
|
|
return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return $file_path;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the stylesheet path.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_local_stylesheet_path() {
|
||
|
|
if ( ! $this->local_stylesheet_path ) {
|
||
|
|
$this->local_stylesheet_path = $this->get_fonts_folder() . '/' . $this->get_local_stylesheet_filename() . '.css';
|
||
|
|
}
|
||
|
|
return $this->local_stylesheet_path;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the local stylesheet filename.
|
||
|
|
*
|
||
|
|
* This is a hash, generated from the site-URL, the wp-content path and the URL.
|
||
|
|
* This way we can avoid issues with sites changing their URL, or the wp-content path etc.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_local_stylesheet_filename() {
|
||
|
|
return md5( $this->get_base_url() . $this->get_base_path() . $this->remote_url . $this->font_format );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Set the font-format to be used.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.0.0
|
||
|
|
* @param string $format The format to be used. Use "woff" or "woff2".
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function set_font_format( $format = 'woff2' ) {
|
||
|
|
$this->font_format = $format;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Check if the local stylesheet exists.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function local_file_exists() {
|
||
|
|
return ( ! file_exists( $this->get_local_stylesheet_path() ) );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the base path.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_base_path() {
|
||
|
|
if ( ! $this->base_path ) {
|
||
|
|
$this->base_path = apply_filters( 'wptt_get_local_fonts_base_path', $this->get_filesystem()->wp_content_dir() );
|
||
|
|
}
|
||
|
|
return $this->base_path;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the base URL.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_base_url() {
|
||
|
|
if ( ! $this->base_url ) {
|
||
|
|
$this->base_url = apply_filters( 'wptt_get_local_fonts_base_url', content_url() );
|
||
|
|
}
|
||
|
|
return $this->base_url;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the subfolder name.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_subfolder_name() {
|
||
|
|
if ( ! $this->subfolder_name ) {
|
||
|
|
$this->subfolder_name = apply_filters( 'wptt_get_local_fonts_subfolder_name', 'fonts' );
|
||
|
|
}
|
||
|
|
return $this->subfolder_name;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the folder for fonts.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @return string
|
||
|
|
*/
|
||
|
|
public function get_fonts_folder() {
|
||
|
|
if ( ! $this->fonts_folder ) {
|
||
|
|
$this->fonts_folder = $this->get_base_path();
|
||
|
|
if ( $this->get_subfolder_name() ) {
|
||
|
|
$this->fonts_folder .= '/' . $this->get_subfolder_name();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
return $this->fonts_folder;
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Schedule a cleanup.
|
||
|
|
*
|
||
|
|
* Deletes the fonts files on a regular basis.
|
||
|
|
* This way font files will get updated regularly,
|
||
|
|
* and we avoid edge cases where unused files remain in the server.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return void
|
||
|
|
*/
|
||
|
|
public function schedule_cleanup() {
|
||
|
|
if ( ! is_multisite() || ( is_multisite() && is_main_site() ) ) {
|
||
|
|
if ( ! wp_next_scheduled( 'delete_fonts_folder' ) && ! wp_installing() ) {
|
||
|
|
wp_schedule_event( time(), self::CLEANUP_FREQUENCY, 'delete_fonts_folder' );
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Delete the fonts folder.
|
||
|
|
*
|
||
|
|
* This runs as part of a cleanup routine.
|
||
|
|
*
|
||
|
|
* @access public
|
||
|
|
* @since 1.1.0
|
||
|
|
* @return bool
|
||
|
|
*/
|
||
|
|
public function delete_fonts_folder() {
|
||
|
|
return $this->get_filesystem()->delete( $this->get_fonts_folder(), true );
|
||
|
|
}
|
||
|
|
|
||
|
|
/**
|
||
|
|
* Get the filesystem.
|
||
|
|
*
|
||
|
|
* @access protected
|
||
|
|
* @since 1.0.0
|
||
|
|
* @return WP_Filesystem
|
||
|
|
*/
|
||
|
|
protected function get_filesystem() {
|
||
|
|
global $wp_filesystem;
|
||
|
|
|
||
|
|
// If the filesystem has not been instantiated yet, do it here.
|
||
|
|
if ( ! $wp_filesystem ) {
|
||
|
|
if ( ! function_exists( 'WP_Filesystem' ) ) {
|
||
|
|
require_once wp_normalize_path( ABSPATH . '/wp-admin/includes/file.php' );
|
||
|
|
}
|
||
|
|
WP_Filesystem();
|
||
|
|
}
|
||
|
|
return $wp_filesystem;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! function_exists( 'get_webfont_styles' ) ) {
|
||
|
|
/**
|
||
|
|
* Get styles for a webfont.
|
||
|
|
*
|
||
|
|
* This will get the CSS from the remote API,
|
||
|
|
* download any fonts it contains,
|
||
|
|
* replace references to remote URLs with locally-downloaded assets,
|
||
|
|
* and finally return the resulting CSS.
|
||
|
|
*
|
||
|
|
* @since 1.0.0
|
||
|
|
*
|
||
|
|
* @param string $url The URL of the remote webfont.
|
||
|
|
* @param string $format The font-format. If you need to support IE, change this to "woff".
|
||
|
|
*
|
||
|
|
* @return string Returns the CSS.
|
||
|
|
*/
|
||
|
|
function get_webfont_styles( $url, $format = 'woff2' ) {
|
||
|
|
$font = new WebFont_Loader( $url );
|
||
|
|
$font->set_font_format( $format );
|
||
|
|
return $font->get_styles();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! function_exists( 'get_webfont_url' ) ) {
|
||
|
|
/**
|
||
|
|
* Get a stylesheet URL for a webfont.
|
||
|
|
*
|
||
|
|
* @since 1.1.0
|
||
|
|
*
|
||
|
|
* @param string $url The URL of the remote webfont.
|
||
|
|
* @param string $format The font-format. If you need to support IE, change this to "woff".
|
||
|
|
*
|
||
|
|
* @return string Returns the CSS.
|
||
|
|
*/
|
||
|
|
function get_webfont_url( $url, $format = 'woff2' ) {
|
||
|
|
$font = new WebFont_Loader( $url );
|
||
|
|
$font->set_font_format( $format );
|
||
|
|
return $font->get_url();
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if ( ! function_exists( 'print_webfont_preload' ) ) {
|
||
|
|
/**
|
||
|
|
* Get the file preloads.
|
||
|
|
*
|
||
|
|
* @param string $url The URL of the remote webfont.
|
||
|
|
* @param string $format The font-format. If you need to support IE, change this to "woff".
|
||
|
|
*/
|
||
|
|
function print_webfont_preload( $url, $format = 'woff2' ) {
|
||
|
|
$font = new WebFont_Loader( $url );
|
||
|
|
$font->set_font_format( $format );
|
||
|
|
$font->print_preload_fonts();
|
||
|
|
}
|
||
|
|
}
|