102 lines
2.5 KiB
PHP
102 lines
2.5 KiB
PHP
<?php
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/**
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* Speculation Rules implementation for cornerstone pages
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*
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* @package Boost
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* @since 3.13.0
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*/
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namespace Automattic\Jetpack_Boost\Modules\Optimizations\Speculation_Rules;
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use Automattic\Jetpack_Boost\Contracts\Changes_Output_On_Activation;
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use Automattic\Jetpack_Boost\Contracts\Feature;
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use Automattic\Jetpack_Boost\Contracts\Optimization;
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use Automattic\Jetpack_Boost\Lib\Cornerstone\Cornerstone_Utils;
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/**
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* Class to handle speculation rules for cornerstone pages
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*/
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class Speculation_Rules implements Feature, Changes_Output_On_Activation, Optimization {
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/**
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* Get the slug for this module.
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*
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* @return string
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*/
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public static function get_slug() {
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return 'speculation_rules';
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}
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/**
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* Check if the feature is available
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*
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* @return bool
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*/
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public static function is_available() {
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global $wp_version;
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return version_compare( $wp_version, '6.8-beta3', '>=' );
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}
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/**
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* Initialize the speculation rules
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*
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* @since 3.13.0
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* @return void
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*/
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public function setup() {
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// Use WP core action to add speculation rules
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add_action( 'wp_load_speculation_rules', array( $this, 'add_cornerstone_rules' ) );
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}
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/**
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* Add speculation rules for cornerstone pages
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*
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* @param \WP_Speculation_Rules $speculation_rules The speculation rules instance.
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* @since 3.13.0
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* @return void
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*/
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public function add_cornerstone_rules( $speculation_rules ) {
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$cornerstone_urls = $this->get_cornerstone_urls();
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if ( empty( $cornerstone_urls ) ) {
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return;
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}
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// remove the protocol and domain from the list of cornerstone urls
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$home_url = wp_parse_url( home_url() );
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$domain = $home_url['host'];
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$protocol = $home_url['scheme'];
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$cornerstone_urls = array_map(
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function ( $url ) use ( $protocol, $domain ) {
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return trailingslashit( str_replace( $protocol . '://' . $domain, '', $url ) );
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},
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$cornerstone_urls
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);
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// Add prerender rule for cornerstone pages with moderate eagerness
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$speculation_rules->add_rule(
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'prerender',
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'cornerstone-pages-prerender',
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array(
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'source' => 'document',
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'where' => array(
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'href_matches' => $cornerstone_urls,
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),
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'eagerness' => 'moderate',
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)
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);
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}
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/**
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* Get the list of cornerstone page URLs
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*
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* @since 3.13.0
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* @return array Array of cornerstone page URLs
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*/
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private function get_cornerstone_urls() {
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$cornerstone_urls = Cornerstone_Utils::get_list();
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if ( empty( $cornerstone_urls ) ) {
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return array();
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}
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return $cornerstone_urls;
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}
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}
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