jetpack
/
jetpack_vendor
/
automattic
/
jetpack-search
/
src
/
inline-search
/
class-inline-search-highlighter.php
class-inline-search-highlighter.php in Jetpack – WP Security, Backup, Speed, & Growth 16.3, at jetpack_vendor/automattic/jetpack-search/src/inline-search/class-inline-search-highlighter.php
| 1 | <?php |
| 2 | /** |
| 3 | * Search Highlighter: Handles highlighting of search terms in content |
| 4 | * |
| 5 | * @package automattic/jetpack-search |
| 6 | */ |
| 7 | |
| 8 | namespace Automattic\Jetpack\Search; |
| 9 | |
| 10 | /** |
| 11 | * Search Highlighter class |
| 12 | */ |
| 13 | class Inline_Search_Highlighter { |
| 14 | /** |
| 15 | * Stores highlighted content from search results. |
| 16 | * |
| 17 | * @var array |
| 18 | */ |
| 19 | private $highlighted_content; |
| 20 | |
| 21 | /** |
| 22 | * Stores the list of post IDs that are actual search results. |
| 23 | * |
| 24 | * @var array |
| 25 | */ |
| 26 | private $search_result_ids; |
| 27 | |
| 28 | /** |
| 29 | * Constructor |
| 30 | * |
| 31 | * @param array $search_result_ids Array of post IDs from search results. |
| 32 | * @param array|null $results Optional. The search result data from the API to process immediately. |
| 33 | */ |
| 34 | public function __construct( array $search_result_ids = array(), ?array $results = null ) { |
| 35 | $this->search_result_ids = $search_result_ids; |
| 36 | $this->highlighted_content = array(); |
| 37 | |
| 38 | // Process API results immediately if provided |
| 39 | if ( $results !== null ) { |
| 40 | $this->process_results( $results ); |
| 41 | } |
| 42 | } |
| 43 | |
| 44 | /** |
| 45 | * Set up the WordPress filters for highlighting. |
| 46 | */ |
| 47 | public function setup(): void { |
| 48 | add_filter( 'the_title', array( $this, 'filter_highlighted_title' ), 10, 2 ); |
| 49 | add_filter( 'the_excerpt', array( $this, 'filter_highlighted_excerpt' ) ); |
| 50 | add_filter( 'render_block_core/post-excerpt', array( $this, 'filter_render_highlighted_block' ), 10, 3 ); |
| 51 | } |
| 52 | |
| 53 | /** |
| 54 | * Process highlighting data for search results. |
| 55 | * |
| 56 | * @param array $results The search result data from the API. |
| 57 | */ |
| 58 | public function process_results( array $results ): void { |
| 59 | $this->highlighted_content = array(); |
| 60 | |
| 61 | if ( empty( $results ) ) { |
| 62 | return; |
| 63 | } |
| 64 | |
| 65 | foreach ( $results as $result ) { |
| 66 | $post_id = (int) ( $result['fields']['post_id'] ?? 0 ); |
| 67 | $this->process_result_highlighting( $result, $post_id ); |
| 68 | } |
| 69 | } |
| 70 | |
| 71 | /** |
| 72 | * Filter the post title to show highlighted version. |
| 73 | * |
| 74 | * @param string $title The post title. |
| 75 | * @param int|null $post_id Optional. The post ID. Default null. |
| 76 | * |
| 77 | * @return string The filtered title. |
| 78 | */ |
| 79 | public function filter_highlighted_title( string $title, ?int $post_id = null ): string { |
| 80 | $incompatible_themes = array( |
| 81 | 'blaskan', // Blaskan incorrectly uses wp_nav_menu() in body_class filter, causing infinite recursion. |
| 82 | 'p2020', // P2 loads o2 as a plugin, which calls the_title() filter incorrectly. |
| 83 | ); |
| 84 | |
| 85 | $theme = wp_get_theme(); |
| 86 | $theme_name = strtolower( $theme->get( 'Name' ) ); |
| 87 | $theme_template = strtolower( $theme->get_template() ); |
| 88 | |
| 89 | foreach ( $incompatible_themes as $incompatible_theme ) { |
| 90 | if ( $theme_name === $incompatible_theme || $theme_template === $incompatible_theme ) { |
| 91 | return $title; |
| 92 | } |
| 93 | } |
| 94 | |
| 95 | if ( ! $this->is_search_result( $post_id ) ) { |
| 96 | return $title; |
| 97 | } |
| 98 | |
| 99 | if ( ! empty( $this->highlighted_content[ $post_id ]['title'] ) ) { |
| 100 | return $this->highlighted_content[ $post_id ]['title']; |
| 101 | } |
| 102 | |
| 103 | return $title; |
| 104 | } |
| 105 | |
| 106 | /** |
| 107 | * Filter the post content to show highlighted version. |
| 108 | * |
| 109 | * @param string $content The post content. |
| 110 | * |
| 111 | * @return string The filtered content. |
| 112 | */ |
| 113 | public function filter_highlighted_excerpt( string $content ): string { |
| 114 | $post_id = get_the_ID(); |
| 115 | |
| 116 | if ( ! $this->is_search_result( $post_id ) ) { |
| 117 | return $content; |
| 118 | } |
| 119 | |
| 120 | // Skip highlighting if we're in a block theme context in favour of filter_render_highlighted_block(). |
| 121 | if ( function_exists( 'wp_is_block_theme' ) && wp_is_block_theme() ) { |
| 122 | return $content; |
| 123 | } |
| 124 | |
| 125 | if ( ! empty( $this->highlighted_content[ $post_id ]['content'] ) ) { |
| 126 | return wpautop( $this->highlighted_content[ $post_id ]['content'] ); |
| 127 | } |
| 128 | |
| 129 | return $content; |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Process highlighting data for a single search result. |
| 134 | * |
| 135 | * @param array $result The search result data from the API. |
| 136 | * @param int $post_id The post ID for this result. |
| 137 | */ |
| 138 | private function process_result_highlighting( array $result, int $post_id ): void { |
| 139 | if ( empty( $result['highlight'] ) ) { |
| 140 | return; |
| 141 | } |
| 142 | |
| 143 | $title = $this->extract_highlight_field( $result, 'title' ); |
| 144 | $content = $this->extract_highlight_field( $result, 'content' ); |
| 145 | |
| 146 | $this->highlighted_content[ $post_id ] = array( |
| 147 | 'title' => $title, |
| 148 | 'content' => $content, |
| 149 | ); |
| 150 | } |
| 151 | |
| 152 | /** |
| 153 | * Extract a highlight field from the search result, handling different field formats. |
| 154 | * |
| 155 | * @param array $result The search result data from the API. |
| 156 | * @param string $field The field name to extract. |
| 157 | * |
| 158 | * @return string The extracted highlighted field. |
| 159 | */ |
| 160 | private function extract_highlight_field( array $result, string $field ): string { |
| 161 | if ( isset( $result['highlight'][ $field ] ) && is_array( $result['highlight'][ $field ] ) ) { |
| 162 | return $result['highlight'][ $field ][0]; |
| 163 | } |
| 164 | |
| 165 | // Try field variants with suffixes (e.g., 'title.default') if no direct match found. |
| 166 | foreach ( $result['highlight'] as $key => $value ) { |
| 167 | if ( str_starts_with( $key, $field . '.' ) ) { |
| 168 | if ( is_array( $value ) && ! empty( $value ) ) { |
| 169 | return $value[0]; |
| 170 | } |
| 171 | } |
| 172 | } |
| 173 | |
| 174 | return ''; |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Check if the current post is a search result from our API |
| 179 | * |
| 180 | * @param int|null $post_id The post ID to check. |
| 181 | * |
| 182 | * @return bool Whether the post is a search result. |
| 183 | */ |
| 184 | public function is_search_result( ?int $post_id ): bool { |
| 185 | // o2 is initially returning null due to mishandling of the_title() filter. |
| 186 | if ( null === $post_id ) { |
| 187 | return false; |
| 188 | } |
| 189 | |
| 190 | return is_search() && in_the_loop() && ! empty( $this->search_result_ids ) && in_array( $post_id, $this->search_result_ids, true ); |
| 191 | } |
| 192 | |
| 193 | /** |
| 194 | * Filter for rendering highlighted content when highlighting is returned from the API. |
| 195 | * |
| 196 | * @param string $block_content The block content. |
| 197 | * @param array $block The block data. |
| 198 | * @param object $instance The block instance. |
| 199 | * |
| 200 | * @return string The filtered block content. |
| 201 | * @since 0.50.0 |
| 202 | */ |
| 203 | public function filter_render_highlighted_block( string $block_content, array $block, object $instance ): string { |
| 204 | if ( ! isset( $instance->context['postId'] ) || ! $this->is_search_result( $instance->context['postId'] ) ) { |
| 205 | return $block_content; |
| 206 | } |
| 207 | |
| 208 | $highlighted_content = $this->highlighted_content[ $instance->context['postId'] ] ?? null; |
| 209 | |
| 210 | // If we don't have any highlighted content or comments, return the original block content |
| 211 | if ( empty( $highlighted_content['content'] ) && empty( $highlighted_content['comments'] ) ) { |
| 212 | return $block_content; |
| 213 | } |
| 214 | |
| 215 | // Start with the content highlights if available |
| 216 | if ( ! empty( $highlighted_content['content'] ) ) { |
| 217 | $block_content = wpautop( $highlighted_content['content'] ); |
| 218 | } |
| 219 | |
| 220 | // Append comment highlights if available |
| 221 | if ( ! empty( $highlighted_content['comments'] ) ) { |
| 222 | $block_content .= ' ... ' . $highlighted_content['comments']; |
| 223 | } |
| 224 | |
| 225 | // Handle more text display if needed |
| 226 | $more_text = ! empty( $block['attrs']['moreText'] ) ? '<a class="wp-block-post-excerpt__more-text">' . $block['attrs']['moreText'] . '</a>' : ''; |
| 227 | |
| 228 | $classes = array(); |
| 229 | if ( isset( $block['attrs']['textAlign'] ) ) { |
| 230 | $classes[] = 'has-text-align-' . $block['attrs']['textAlign']; |
| 231 | } |
| 232 | |
| 233 | if ( isset( $block['attrs']['style']['elements']['link']['color']['text'] ) ) { |
| 234 | $classes[] = 'has-link-color'; |
| 235 | } |
| 236 | |
| 237 | $wrapper_attributes = get_block_wrapper_attributes( array( 'class' => implode( ' ', $classes ) ) ); |
| 238 | |
| 239 | // Determine if we should show more text on new line based on block attributes |
| 240 | $show_more_on_new_line = ! isset( $block['attrs']['showMoreOnNewLine'] ) || $block['attrs']['showMoreOnNewLine']; |
| 241 | |
| 242 | if ( $show_more_on_new_line && ! empty( $more_text ) ) { |
| 243 | $block_content .= '</p><p class="wp-block-post-excerpt__more-text">' . $more_text . '</p>'; |
| 244 | } elseif ( ! empty( $more_text ) ) { |
| 245 | $block_content .= " $more_text</p>"; |
| 246 | } |
| 247 | |
| 248 | return sprintf( '<div %1$s>%2$s</div>', $wrapper_attributes, $block_content ); |
| 249 | } |
| 250 | } |
| 251 |