nested-document-assets.php
| 1 | <?php |
| 2 | namespace ElementsKit_Lite\Widgets\Init; |
| 3 | |
| 4 | use ElementsKit_Lite\Modules\Header_Footer\Activator; |
| 5 | use ElementsKit_Lite\Utils; |
| 6 | |
| 7 | defined( 'ABSPATH' ) || exit; |
| 8 | |
| 9 | /** |
| 10 | * Preloads assets for Elementor documents rendered by ElementsKit. |
| 11 | */ |
| 12 | class Nested_Document_Assets { |
| 13 | |
| 14 | /** |
| 15 | * Widget Area documents, keyed by exact mega-menu title match. |
| 16 | * @var array|null |
| 17 | */ |
| 18 | private $mega_menu_documents; |
| 19 | |
| 20 | /** |
| 21 | * Widget Area documents whose titles use the "dynamic-content-widget-{key}-*" prefix form. |
| 22 | * Each entry is [ 'suffix' => string after the shared prefix, 'id' => int ]. |
| 23 | * @var array|null |
| 24 | */ |
| 25 | private $widget_area_candidates; |
| 26 | |
| 27 | /** |
| 28 | * Per-request cache of resolved widget style/script dependencies, keyed by widget type and settings. |
| 29 | * Avoids rebuilding equivalent widget instances that repeat on a page. |
| 30 | * @var array |
| 31 | */ |
| 32 | private $widget_dependency_cache = array(); |
| 33 | |
| 34 | /** |
| 35 | * Per-request cache of nav menu items, keyed by menu id/slug/object. |
| 36 | * @var array |
| 37 | */ |
| 38 | private $nav_menu_items_cache = array(); |
| 39 | |
| 40 | /** |
| 41 | * Enqueue dependencies before wp_head prints styles. |
| 42 | * @since 4.0.3 |
| 43 | * @return void |
| 44 | */ |
| 45 | public function enqueue() { |
| 46 | if ( ! class_exists( '\\Elementor\\Plugin' ) ) { |
| 47 | return; |
| 48 | } |
| 49 | |
| 50 | $document_ids = array_filter( array( get_queried_object_id() ) ); |
| 51 | |
| 52 | if ( class_exists( Activator::class ) ) { |
| 53 | $document_ids = array_merge( $document_ids, (array) Activator::template_ids() ); |
| 54 | } |
| 55 | |
| 56 | $checked = array(); |
| 57 | $queue = array_values( array_unique( array_map( 'absint', array_filter( $document_ids ) ) ) ); |
| 58 | |
| 59 | while ( ! empty( $queue ) ) { |
| 60 | $document_id = array_shift( $queue ); |
| 61 | if ( isset( $checked[ $document_id ] ) ) { |
| 62 | continue; |
| 63 | } |
| 64 | |
| 65 | $checked[ $document_id ] = true; |
| 66 | $elements = $this->get_document_elements( $document_id ); |
| 67 | if ( empty( $elements ) ) { |
| 68 | continue; |
| 69 | } |
| 70 | |
| 71 | Utils::render_elementor_content_css( $document_id ); |
| 72 | $widget_area_keys = array(); |
| 73 | $this->enqueue_element_dependencies( $elements, $widget_area_keys ); |
| 74 | |
| 75 | foreach ( $this->get_widget_area_document_ids( $widget_area_keys ) as $nested_id ) { |
| 76 | if ( ! isset( $checked[ $nested_id ] ) ) { |
| 77 | $queue[] = $nested_id; |
| 78 | } |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Get the saved Elementor element tree for a document. |
| 85 | * @since 4.0.3 |
| 86 | * @param int $document_id Elementor document ID. |
| 87 | * @return array |
| 88 | */ |
| 89 | private function get_document_elements( $document_id ) { |
| 90 | $data = get_post_meta( $document_id, '_elementor_data', true ); |
| 91 | if ( is_string( $data ) ) { |
| 92 | $data = json_decode( $data, true ); |
| 93 | } |
| 94 | |
| 95 | return is_array( $data ) ? $data : array(); |
| 96 | } |
| 97 | |
| 98 | /** |
| 99 | * Walk an Elementor tree and enqueue every registered widget dependency. |
| 100 | * @since 4.0.3 |
| 101 | * @param array $elements Elementor elements. |
| 102 | * @param array $widget_area_keys Dynamic-content lookup keys. |
| 103 | * @return void |
| 104 | */ |
| 105 | private function enqueue_element_dependencies( $elements, &$widget_area_keys ) { |
| 106 | foreach ( $elements as $element ) { |
| 107 | if ( ! is_array( $element ) ) { |
| 108 | continue; |
| 109 | } |
| 110 | |
| 111 | if ( ! empty( $element['id'] ) ) { |
| 112 | $widget_area_keys[] = (string) $element['id']; |
| 113 | } |
| 114 | |
| 115 | if ( ! empty( $element['widgetType'] ) ) { |
| 116 | $this->enqueue_widget_dependencies( $element ); |
| 117 | } |
| 118 | |
| 119 | if ( ! empty( $element['settings']['elementskit_nav_menu'] ) ) { |
| 120 | foreach ( $this->get_nav_menu_items( $element['settings']['elementskit_nav_menu'] ) as $menu_item ) { |
| 121 | $widget_area_keys[] = 'megamenu-menuitem' . $menu_item->ID; |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | if ( ! empty( $element['settings'] ) ) { |
| 126 | array_walk_recursive( |
| 127 | $element['settings'], |
| 128 | static function ( $value ) use ( &$widget_area_keys ) { |
| 129 | if ( is_string( $value ) && preg_match( '/^([A-Za-z0-9_-]+)(?:\\*\\*\\*|$)/', $value, $matches ) ) { |
| 130 | $widget_area_keys[] = $matches[1]; |
| 131 | } |
| 132 | } |
| 133 | ); |
| 134 | } |
| 135 | |
| 136 | if ( ! empty( $element['elements'] ) && is_array( $element['elements'] ) ) { |
| 137 | $this->enqueue_element_dependencies( $element['elements'], $widget_area_keys ); |
| 138 | } |
| 139 | } |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Resolve and enqueue a widget instance's style/script dependencies, caching |
| 144 | * the lookup for widgets with the same type and settings. |
| 145 | * @since 4.0.3 |
| 146 | * @param array $element Saved Elementor widget data. |
| 147 | * @return void |
| 148 | */ |
| 149 | private function enqueue_widget_dependencies( $element) { |
| 150 | //empty check for widgetType, because some widgets are not registered in Elementor and they don't have widgetType. So we need to check if widgetType is empty or not. |
| 151 | if ( empty( $element['widgetType'] ) ) { |
| 152 | return; |
| 153 | } |
| 154 | |
| 155 | $widget_type = $element['widgetType']; |
| 156 | $settings = isset( $element['settings'] ) && is_array( $element['settings'] ) ? $element['settings'] : array(); |
| 157 | $cache_key = $widget_type . ':' . md5( wp_json_encode( $settings ) ); |
| 158 | |
| 159 | if ( ! isset( $this->widget_dependency_cache[ $cache_key ] ) ) { |
| 160 | $dependencies = array( |
| 161 | 'styles' => array(), |
| 162 | 'scripts' => array(), |
| 163 | ); |
| 164 | |
| 165 | /* |
| 166 | * Elementor's registered widget objects are prototypes and may not |
| 167 | * contain initialized settings. Create a real instance from the saved |
| 168 | * Elementor element data before resolving conditional dependencies. |
| 169 | */ |
| 170 | $element['elType'] = 'widget'; |
| 171 | $element['settings'] = $settings; |
| 172 | $widget = \Elementor\Plugin::$instance->elements_manager->create_element_instance( $element ); |
| 173 | if ( $widget instanceof \Elementor\Widget_Base ) { |
| 174 | |
| 175 | $dependencies['styles'] = (array) $widget->get_style_depends(); |
| 176 | $dependencies['scripts'] = (array) $widget->get_script_depends(); |
| 177 | } |
| 178 | |
| 179 | $this->widget_dependency_cache[ $cache_key ] = $dependencies; |
| 180 | } |
| 181 | |
| 182 | foreach ( $this->widget_dependency_cache[ $cache_key ]['styles'] as $handle ) { |
| 183 | if ( ! empty( $handle ) ) { |
| 184 | wp_enqueue_style( $handle ); |
| 185 | } |
| 186 | } |
| 187 | |
| 188 | foreach ( $this->widget_dependency_cache[ $cache_key ]['scripts'] as $handle ) { |
| 189 | if ( ! empty( $handle ) ) { |
| 190 | wp_enqueue_script( $handle ); |
| 191 | } |
| 192 | } |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * Get nav menu items for a menu, caching per menu so the same menu |
| 197 | * referenced multiple times in a tree is only fetched once. |
| 198 | * @since 4.0.3 |
| 199 | * @param mixed $menu Menu ID, slug, or object. |
| 200 | * @return array |
| 201 | */ |
| 202 | private function get_nav_menu_items( $menu ) { |
| 203 | $cache_key = is_scalar( $menu ) ? (string) $menu : md5( wp_json_encode( $menu ) ); |
| 204 | |
| 205 | if ( ! isset( $this->nav_menu_items_cache[ $cache_key ] ) ) { |
| 206 | $this->nav_menu_items_cache[ $cache_key ] = (array) wp_get_nav_menu_items( $menu ); |
| 207 | } |
| 208 | |
| 209 | return $this->nav_menu_items_cache[ $cache_key ]; |
| 210 | } |
| 211 | |
| 212 | /** |
| 213 | * Resolve saved Widget Area and Mega Menu documents linked by the element tree. |
| 214 | * @since 4.0.3 |
| 215 | * @param array $keys Widget IDs and dynamic-content keys. |
| 216 | * @return int[] |
| 217 | */ |
| 218 | private function get_widget_area_document_ids( $keys ) { |
| 219 | $keys = array_unique( array_filter( array_map( 'sanitize_key', $keys ) ) ); |
| 220 | if ( empty( $keys ) ) { |
| 221 | return array(); |
| 222 | } |
| 223 | |
| 224 | $this->load_widget_area_documents(); |
| 225 | |
| 226 | $ids = array(); |
| 227 | |
| 228 | // Mega menu titles are exact matches, so this is an O(1) lookup per key |
| 229 | // instead of a linear scan over every candidate document. |
| 230 | foreach ( $keys as $key ) { |
| 231 | if ( isset( $this->mega_menu_documents[ 'dynamic-content-' . $key ] ) ) { |
| 232 | $ids[] = $this->mega_menu_documents[ 'dynamic-content-' . $key ]; |
| 233 | } |
| 234 | } |
| 235 | |
| 236 | // Widget area titles carry an arbitrary suffix after the key, so a prefix |
| 237 | // check is still required, but it now only scans the smaller, pre-filtered |
| 238 | // widget-area candidate list rather than every elementskit_content post. |
| 239 | foreach ( $this->widget_area_candidates as $candidate ) { |
| 240 | foreach ( $keys as $key ) { |
| 241 | if ( 0 === strpos( $candidate['suffix'], $key . '-' ) ) { |
| 242 | $ids[] = $candidate['id']; |
| 243 | break; |
| 244 | } |
| 245 | } |
| 246 | } |
| 247 | |
| 248 | return array_values( array_unique( $ids ) ); |
| 249 | } |
| 250 | |
| 251 | /** |
| 252 | * Load and index elementskit_content documents once per request. |
| 253 | * |
| 254 | * Skips found-row counting and meta/term cache priming (unneeded for this |
| 255 | * lookup) and splits results into an exact-match hash map for mega menus |
| 256 | * and a smaller candidate list for widget-area prefix matching. |
| 257 | * @since 4.0.3 |
| 258 | * @return void |
| 259 | */ |
| 260 | private function load_widget_area_documents() { |
| 261 | if ( null !== $this->mega_menu_documents ) { |
| 262 | return; |
| 263 | } |
| 264 | |
| 265 | $this->mega_menu_documents = array(); |
| 266 | $this->widget_area_candidates = array(); |
| 267 | |
| 268 | $rows = get_posts( |
| 269 | array( |
| 270 | 'post_type' => 'elementskit_content', |
| 271 | 'post_status' => 'publish', |
| 272 | 'posts_per_page' => -1, |
| 273 | 'no_found_rows' => true, |
| 274 | 'update_post_meta_cache' => false, |
| 275 | 'update_post_term_cache' => false, |
| 276 | ) |
| 277 | ); |
| 278 | |
| 279 | $widget_prefix = 'dynamic-content-widget-'; |
| 280 | $widget_prefix_length = strlen( $widget_prefix ); |
| 281 | |
| 282 | foreach ( (array) $rows as $row ) { |
| 283 | $id = (int) $row->ID; |
| 284 | $title = (string) $row->post_title; |
| 285 | |
| 286 | if ( 0 === strpos( $title, $widget_prefix ) ) { |
| 287 | $this->widget_area_candidates[] = array( |
| 288 | 'suffix' => substr( $title, $widget_prefix_length ), |
| 289 | 'id' => $id, |
| 290 | ); |
| 291 | } else { |
| 292 | $this->mega_menu_documents[ $title ] = $id; |
| 293 | } |
| 294 | } |
| 295 | } |
| 296 | } |
| 297 |