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| 1 | <?php |
| 2 | /** |
| 3 | * Provides taxonomy support for critical CSS |
| 4 | * |
| 5 | * @package automattic/jetpack-boost |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack_Boost\Lib\Critical_CSS\Source_Providers\Providers; |
| 9 | |
| 10 | /** |
| 11 | * Class Taxonomy_Provider |
| 12 | * |
| 13 | * @package Automattic\Jetpack_Boost\Modules\Critical_CSS\Providers |
| 14 | */ |
| 15 | class Taxonomy_Provider extends Provider { |
| 16 | |
| 17 | /** |
| 18 | * Provider name. |
| 19 | * |
| 20 | * @var string |
| 21 | */ |
| 22 | protected static $name = 'taxonomy'; |
| 23 | |
| 24 | /** |
| 25 | * Max number of posts to query. |
| 26 | * |
| 27 | * @var integer |
| 28 | */ |
| 29 | const MAX_URLS = 10; |
| 30 | |
| 31 | /** |
| 32 | * Minimum number of posts to have Critical CSS generated in order for the whole process to be successful. |
| 33 | * |
| 34 | * @var integer |
| 35 | */ |
| 36 | const MIN_SUCCESS_URLS = 5; |
| 37 | |
| 38 | /** @inheritdoc */ |
| 39 | public static function get_critical_source_urls( $context_posts = array() ) { |
| 40 | $results = array(); |
| 41 | |
| 42 | $taxonomies = self::get_available_taxonomies(); |
| 43 | if ( ! empty( $context_posts ) ) { |
| 44 | $context_post_types = array_unique( wp_list_pluck( $context_posts, 'post_type' ) ); |
| 45 | $context_taxonomies = get_object_taxonomies( $context_post_types, 'names' ); |
| 46 | $taxonomies = array_intersect( $taxonomies, $context_taxonomies ); |
| 47 | } |
| 48 | |
| 49 | foreach ( $taxonomies as $taxonomy ) { |
| 50 | $terms = self::get_terms( $taxonomy ); |
| 51 | |
| 52 | if ( ! $terms ) { |
| 53 | continue; |
| 54 | } |
| 55 | |
| 56 | foreach ( $terms as $term ) { |
| 57 | $url = get_term_link( $term, $taxonomy ); |
| 58 | if ( ! is_wp_error( $url ) && ! empty( $url ) ) { |
| 59 | $results[ $taxonomy ][] = $url; |
| 60 | } |
| 61 | } |
| 62 | } |
| 63 | |
| 64 | return $results; |
| 65 | } |
| 66 | |
| 67 | /** @inheritdoc */ |
| 68 | public static function get_current_storage_keys() { |
| 69 | if ( ! is_category() && ! is_tax() ) { |
| 70 | return array(); |
| 71 | } |
| 72 | |
| 73 | if ( ! get_queried_object() ) { |
| 74 | return array(); |
| 75 | } |
| 76 | |
| 77 | // For example: "taxonomy_category". |
| 78 | return array( self::$name . '_' . get_queried_object()->taxonomy ); |
| 79 | } |
| 80 | |
| 81 | /** @inheritdoc */ |
| 82 | public static function get_keys() { |
| 83 | return array_keys( |
| 84 | array_filter( |
| 85 | self::get_available_taxonomies(), |
| 86 | function ( $taxonomy ) { |
| 87 | return ! empty( Taxonomy_Provider::get_terms( $taxonomy ) ); |
| 88 | } |
| 89 | ) |
| 90 | ); |
| 91 | } |
| 92 | |
| 93 | /** @inheritdoc */ |
| 94 | public static function describe_key( $provider_key ) { |
| 95 | $taxonomy = substr( $provider_key, strlen( static::$name ) + 1 ); |
| 96 | |
| 97 | switch ( $taxonomy ) { |
| 98 | case 'category': |
| 99 | return __( 'Category view', 'jetpack-boost' ); |
| 100 | |
| 101 | default: |
| 102 | return __( 'View for custom taxonomy', 'jetpack-boost' ); |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | /** @inheritdoc */ |
| 107 | public static function get_edit_url( $_provider_key ) { |
| 108 | return null; |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * Which taxonomies should Critical CSS be generated for. |
| 113 | * |
| 114 | * @return array |
| 115 | */ |
| 116 | public static function get_available_taxonomies() { |
| 117 | $taxonomies = get_taxonomies( |
| 118 | array( |
| 119 | 'public' => true, |
| 120 | 'show_in_rest' => true, |
| 121 | ), |
| 122 | 'objects' |
| 123 | ); |
| 124 | |
| 125 | $taxonomies = array_filter( $taxonomies, 'is_taxonomy_viewable' ); |
| 126 | |
| 127 | $provider_taxonomies = array(); |
| 128 | // Generate a name => name array for backwards compatibility. |
| 129 | foreach ( $taxonomies as $taxonomy ) { |
| 130 | $provider_taxonomies[ $taxonomy->name ] = $taxonomy->name; |
| 131 | } |
| 132 | |
| 133 | return $provider_taxonomies; |
| 134 | } |
| 135 | |
| 136 | /** |
| 137 | * Get a couple sample terms for a taxonomy. |
| 138 | * |
| 139 | * @param string $taxonomy Taxonomy. |
| 140 | * |
| 141 | * @return array |
| 142 | */ |
| 143 | public static function get_terms( $taxonomy ) { |
| 144 | /** |
| 145 | * Filters the WP_Term_Query args to get a sample of terms for a taxonomy |
| 146 | * |
| 147 | * @param array $args The arguments that will be used by WP_Term_Query |
| 148 | * |
| 149 | * @since 1.0.0 |
| 150 | */ |
| 151 | $args = apply_filters( |
| 152 | 'jetpack_boost_critical_css_terms_query', |
| 153 | array( |
| 154 | 'fields' => 'ids', |
| 155 | 'taxonomy' => $taxonomy, |
| 156 | 'orderby' => 'term_order', |
| 157 | 'number' => static::MAX_URLS, |
| 158 | 'hide_empty' => true, |
| 159 | 'hierarchical' => false, |
| 160 | 'update_term_meta_cache' => false, |
| 161 | ) |
| 162 | ); |
| 163 | |
| 164 | return ( new \WP_Term_Query( $args ) )->terms; |
| 165 | } |
| 166 | |
| 167 | /** @inheritdoc */ |
| 168 | public static function get_success_ratio() { |
| 169 | return static::MIN_SUCCESS_URLS / static::MAX_URLS; |
| 170 | } |
| 171 | } |