126 lines
3.8 KiB
PHP
126 lines
3.8 KiB
PHP
<?php
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/**
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* Environment Change Detector class.
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*
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* @link https://automattic.com
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* @since 1.0.0
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* @package automattic/jetpack-boost
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*/
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namespace Automattic\Jetpack_Boost\Lib;
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use Automattic\Jetpack_Boost\Lib\Cornerstone\Cornerstone_Utils;
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/**
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* Class Environment_Change_Detector
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*/
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class Environment_Change_Detector {
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const ENV_CHANGE_LEGACY = '1';
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const ENV_CHANGE_PAGE_SAVED = 'page_saved';
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const ENV_CHANGE_POST_SAVED = 'post_saved';
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const ENV_CHANGE_SWITCHED_THEME = 'switched_theme';
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const ENV_CHANGE_PLUGIN_CHANGE = 'plugin_change';
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const ENV_CHANGE_CORNERSTONE_PAGE_SAVED = 'cornerstone_page_saved';
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const ENV_CHANGE_CORNERSTONE_PAGES_LIST_UPDATED = 'cornerstone_pages_list_updated';
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/**
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* Initialize the change detection hooks.
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*/
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public static function init() {
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$object = new self();
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$object->register_hooks();
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}
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public function register_hooks() {
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add_action( 'after_switch_theme', array( $this, 'handle_theme_change' ) );
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add_action( 'save_post', array( $this, 'handle_post_change' ), 10, 2 );
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add_action( 'activated_plugin', array( $this, 'handle_plugin_change' ) );
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add_action( 'deactivated_plugin', array( $this, 'handle_plugin_change' ) );
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}
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public function handle_post_change( $post_id, $post ) {
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// Ignore changes to any post which is not published.
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if ( 'publish' !== $post->post_status ) {
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return;
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}
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// Ignore changes to post types which do not affect the front-end UI
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if ( ! $this->is_post_type_invalidating( $post->post_type ) ) {
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return;
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}
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$this->do_action( false, $this->get_post_change_type( $post ) );
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}
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public function handle_theme_change() {
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$this->do_action( true, $this::ENV_CHANGE_SWITCHED_THEME );
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}
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public function handle_plugin_change() {
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$this->do_action( false, $this::ENV_CHANGE_PLUGIN_CHANGE );
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}
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public function handle_cornerstone_pages_list_update() {
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$this->do_action( false, $this::ENV_CHANGE_CORNERSTONE_PAGES_LIST_UPDATED );
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}
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/**
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* Fire the environment change action.
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*
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* @param bool $is_major_change Whether the change is such that we should stop serving existing critical CSS immediately unless refreshed.
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* @param string $change_type The change type.
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*/
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public function do_action( $is_major_change, $change_type ) {
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do_action( 'jetpack_boost_critical_css_environment_changed', $is_major_change, $change_type );
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}
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public static function get_available_env_change_statuses() {
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return array(
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self::ENV_CHANGE_PAGE_SAVED,
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self::ENV_CHANGE_POST_SAVED,
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self::ENV_CHANGE_SWITCHED_THEME,
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self::ENV_CHANGE_PLUGIN_CHANGE,
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self::ENV_CHANGE_CORNERSTONE_PAGE_SAVED,
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self::ENV_CHANGE_CORNERSTONE_PAGES_LIST_UPDATED,
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);
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}
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/**
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* Given a post_type, return true if this post type affects the front end of
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* the site - i.e.: should cause cached optimizations to be invalidated.
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*
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* @param string $post_type The post type to check
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* @return bool True if this post type affects the front end of the site.
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*/
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private function is_post_type_invalidating( $post_type ) {
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// Special cases: items which are not viewable, but affect the UI.
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if ( in_array( $post_type, array( 'wp_template', 'wp_template_part' ), true ) ) {
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return true;
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}
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if ( is_post_type_viewable( $post_type ) ) {
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return true;
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}
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}
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/**
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* Get the type of change for a specific post.
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*
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* @param \WP_Post $post The post object.
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* @return string The change type.
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*/
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private function get_post_change_type( $post ) {
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if ( Cornerstone_Utils::is_cornerstone_page( $post->ID ) ) {
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return $this::ENV_CHANGE_CORNERSTONE_PAGE_SAVED;
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}
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if ( 'page' === $post->post_type ) {
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$change_type = $this::ENV_CHANGE_PAGE_SAVED;
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} else {
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$change_type = $this::ENV_CHANGE_POST_SAVED;
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}
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return $change_type;
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}
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}
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