84 lines
2.7 KiB
PHP
84 lines
2.7 KiB
PHP
<?php
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/**
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* Critical CSS Invalidator
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*
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* Reset critical CSS when existing critical css values are stale.
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*/
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namespace Automattic\Jetpack_Boost\Lib\Critical_CSS;
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use Automattic\Jetpack_Boost\Admin\Regenerate_Admin_Notice;
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use Automattic\Jetpack_Boost\Lib\Boost_Health;
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use Automattic\Jetpack_Boost\Lib\Critical_CSS\Source_Providers\Source_Providers;
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use Automattic\Jetpack_Boost\Modules\Modules_Setup;
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use Automattic\Jetpack_Boost\Modules\Optimizations\Cloud_CSS\Cloud_CSS;
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use Automattic\Jetpack_Boost\Modules\Optimizations\Cloud_CSS\Cloud_CSS_Followup;
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/**
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* Handler for invalidating Critical CSS; both Cloud and Local. Watches relevant
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* hooks and clears data when necessary. Also sends out its own action
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* (after_critical_css_invalidate) so that the Cloud or Local implementations of
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* Critical CSS can respond to the invalidation.
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*/
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class Critical_CSS_Invalidator {
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/**
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* Register hooks.
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*/
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public static function init() {
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add_action( 'jetpack_boost_deactivate', array( __CLASS__, 'reset_data' ) );
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add_action( 'jetpack_boost_critical_css_environment_changed', array( __CLASS__, 'handle_environment_change' ) );
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add_filter( 'jetpack_boost_total_problem_count', array( __CLASS__, 'update_boost_problem_count' ) );
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}
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/**
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* Reset Critical CSS data.
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* For Cloud CSS, we need to make sure there are providers in the state,
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* otherwise Cloud CSS cannot be stored after it is generated by the cloud.
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*/
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public static function reset_data() {
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$storage = new Critical_CSS_Storage();
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$storage->clear();
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$state = new Critical_CSS_State();
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$state->clear();
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if ( self::is_cloud_css() ) {
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$state->prepare_for_generation( ( new Source_Providers() )->get_provider_sources() );
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$state->save();
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// Clear the regenerate flag so things are nice and tidy.
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jetpack_boost_ds_delete( 'critical_css_suggest_regenerate' );
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// Also clear the admin notice flag, so the notice doesn't show up in case
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// the user is reverted to free Boost.
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Regenerate_Admin_Notice::dismiss();
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}
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Cloud_CSS_Followup::unschedule();
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}
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/**
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* Respond to environment changes; deciding whether or not to clear Critical CSS data.
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*/
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public static function handle_environment_change( $is_major_change ) {
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if ( $is_major_change ) {
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self::reset_data();
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do_action( 'jetpack_boost_critical_css_invalidated' );
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}
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}
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public static function update_boost_problem_count( $count ) {
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$css_needs_regeneration = Boost_Health::critical_css_needs_regeneration();
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if ( $css_needs_regeneration ) {
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++$count;
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}
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return $count;
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}
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public static function is_cloud_css() {
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$optimizations = ( new Modules_Setup() )->get_status();
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return isset( $optimizations[ Cloud_CSS::get_slug() ] ) && $optimizations[ Cloud_CSS::get_slug() ];
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}
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}
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