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| 1 | <?php // phpcs:ignore WordPress.Files.FileName.InvalidClassFileName |
| 2 | |
| 3 | if ( ! defined( 'ABSPATH' ) ) { |
| 4 | exit( 0 ); |
| 5 | } |
| 6 | |
| 7 | /** |
| 8 | * List dropdown pages endpoint. |
| 9 | */ |
| 10 | new WPCOM_JSON_API_List_Dropdown_Pages_Endpoint( |
| 11 | array( |
| 12 | |
| 13 | 'description' => 'Get a list of pages to be displayed as options in a select-a-page-dropdown.', |
| 14 | 'min_version' => '1.1', |
| 15 | 'max_version' => '1.1', |
| 16 | |
| 17 | 'group' => 'posts', |
| 18 | 'stat' => 'posts:dropdown-pages', |
| 19 | |
| 20 | 'method' => 'GET', |
| 21 | 'path' => '/sites/%s/dropdown-pages/', |
| 22 | 'path_labels' => array( |
| 23 | '$site' => '(int|string) Site ID or domain', |
| 24 | ), |
| 25 | |
| 26 | 'allow_fallback_to_jetpack_blog_token' => true, |
| 27 | |
| 28 | 'example_request' => 'https://public-api.wordpress.com/rest/v1.1/sites/en.blog.wordpress.com/dropdown-pages/', |
| 29 | ) |
| 30 | ); |
| 31 | |
| 32 | /** |
| 33 | * Endpoint class responsible for listing pages to be displayed as options in a select-a-page-dropdown. |
| 34 | * |
| 35 | * /sites/%s/dropdown-pages/ -> $blog_id |
| 36 | * |
| 37 | * @phan-constructor-used-for-side-effects |
| 38 | */ |
| 39 | class WPCOM_JSON_API_List_Dropdown_Pages_Endpoint extends WPCOM_JSON_API_Endpoint { |
| 40 | |
| 41 | /** |
| 42 | * Page object format. |
| 43 | * |
| 44 | * @var array |
| 45 | */ |
| 46 | public $dropdown_page_object_format = array( |
| 47 | 'ID' => '(int) The page ID.', |
| 48 | 'title' => '(string) The page title.', |
| 49 | 'children' => '(array:dropdown_page) An array of child pages.', |
| 50 | ); |
| 51 | |
| 52 | /** |
| 53 | * The response format. |
| 54 | * |
| 55 | * @var array |
| 56 | */ |
| 57 | public $response_format = array( |
| 58 | 'found' => '(int) The number of pages found.', |
| 59 | 'dropdown_pages' => '(array:dropdown_page) An array of dropdown_page objects.', |
| 60 | ); |
| 61 | |
| 62 | /** |
| 63 | * List of pages indexed by their page ID. |
| 64 | * |
| 65 | * @var array<int,WP_Post> |
| 66 | */ |
| 67 | private $pages_by_id = array(); |
| 68 | |
| 69 | /** |
| 70 | * List of pages indexed by their parent page ID. |
| 71 | * |
| 72 | * @var array<int,WP_Post> |
| 73 | */ |
| 74 | private $pages_by_parent = array(); |
| 75 | |
| 76 | /** |
| 77 | * API callback. |
| 78 | * |
| 79 | * @param string $path - the path. |
| 80 | * @param int $blog_id - the blog ID. |
| 81 | * @return stdClass[] $pages - An array of page objects. Each page object includes ID and title properties and may include children property. This makes each page object a tree-like data structure. |
| 82 | */ |
| 83 | public function callback( $path = '', $blog_id = 0 ) { |
| 84 | $blog_id = $this->api->switch_to_blog_and_validate_user( $this->api->get_blog_id( $blog_id ) ); |
| 85 | if ( is_wp_error( $blog_id ) ) { |
| 86 | return $blog_id; |
| 87 | } |
| 88 | |
| 89 | $pages = get_pages(); |
| 90 | |
| 91 | if ( empty( $pages ) ) { |
| 92 | return array( |
| 93 | 'found' => 0, |
| 94 | 'dropdown_pages' => array(), |
| 95 | ); |
| 96 | } |
| 97 | |
| 98 | $this->pages_by_id = self::to_pages_by_id( $pages ); |
| 99 | $this->pages_by_parent = self::to_pages_by_parent( $pages ); |
| 100 | $dropdown_pages = $this->create_dropdown_pages(); |
| 101 | return array( |
| 102 | 'found' => count( $dropdown_pages ), |
| 103 | 'dropdown_pages' => $dropdown_pages, |
| 104 | ); |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * Convert a list of pages to a list of pages by page ID. |
| 109 | * |
| 110 | * @param array<WP_Post> $pages - array of pages. |
| 111 | * @return array<int,WP_Post> $pages_by_page_id - indexed array of pages by page ID where index is page ID. |
| 112 | */ |
| 113 | private static function to_pages_by_id( $pages ) { |
| 114 | $pages_by_page_id = array(); |
| 115 | foreach ( $pages as $page ) { |
| 116 | if ( isset( $page->ID ) ) { |
| 117 | $pages_by_page_id[ $page->ID ] = $page; |
| 118 | } |
| 119 | } |
| 120 | return $pages_by_page_id; |
| 121 | } |
| 122 | |
| 123 | /** |
| 124 | * Convert a list of pages to a list of pages by parent. |
| 125 | * |
| 126 | * @param array<WP_Post> $pages - array of pages. |
| 127 | * @return array<int,WP_Post> $pages_by_parent - indexed array of pages by parent where index is page ID. |
| 128 | */ |
| 129 | private static function to_pages_by_parent( $pages ) { |
| 130 | $pages_by_parent = array(); |
| 131 | foreach ( $pages as $page ) { |
| 132 | if ( empty( $page->post_parent ) ) { |
| 133 | $pages_by_parent['root'][] = $page; |
| 134 | } else { |
| 135 | $pages_by_parent[ $page->post_parent ][] = $page; |
| 136 | } |
| 137 | } |
| 138 | return $pages_by_parent; |
| 139 | } |
| 140 | |
| 141 | /** |
| 142 | * Convert a list of pages to a list of dropdown pages. |
| 143 | * |
| 144 | * @return array<stdClass> $dropdown_pages - array of dropdown pages. |
| 145 | */ |
| 146 | private function create_dropdown_pages() { |
| 147 | $dropdown_pages = array(); |
| 148 | |
| 149 | if ( ! empty( $this->pages_by_parent['root'] ) ) { |
| 150 | foreach ( $this->pages_by_parent['root'] as $root_page ) { |
| 151 | $dropdown_pages[] = $this->to_dropdown_page( $root_page ); |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | if ( ! empty( $this->pages_by_id ) ) { |
| 156 | // In case there were some orphans |
| 157 | // phpcs:ignore VariableAnalysis.CodeAnalysis.VariableAnalysis.UnusedVariable |
| 158 | foreach ( $this->pages_by_id as $_page_id => $page ) { |
| 159 | $dropdown_pages[] = $this->to_dropdown_page( $page ); |
| 160 | } |
| 161 | } |
| 162 | |
| 163 | return $dropdown_pages; |
| 164 | } |
| 165 | |
| 166 | /** |
| 167 | * Convert a page to a dropdown page. |
| 168 | * |
| 169 | * @param WP_Post $page - the page. |
| 170 | * @return stdClass|false $dropdown_page - the dropdown page. |
| 171 | */ |
| 172 | private function to_dropdown_page( $page ) { |
| 173 | if ( ! isset( $page->ID ) ) { |
| 174 | return false; |
| 175 | } |
| 176 | |
| 177 | $title = $this->get_page_title( $page ); |
| 178 | |
| 179 | if ( ! isset( $this->pages_by_parent[ $page->ID ] ) ) { |
| 180 | unset( $this->pages_by_id[ $page->ID ] ); |
| 181 | return (object) array( |
| 182 | 'ID' => $page->ID, |
| 183 | 'title' => $title, |
| 184 | ); |
| 185 | } |
| 186 | |
| 187 | $children = array(); |
| 188 | foreach ( $this->pages_by_parent[ $page->ID ] as $child_page ) { |
| 189 | $children[] = $this->to_dropdown_page( $child_page ); |
| 190 | } |
| 191 | |
| 192 | unset( $this->pages_by_id[ $page->ID ] ); |
| 193 | unset( $this->pages_by_parent[ $page->ID ] ); |
| 194 | return (object) array( |
| 195 | 'ID' => $page->ID, |
| 196 | 'title' => $title, |
| 197 | 'children' => $children, |
| 198 | ); |
| 199 | } |
| 200 | |
| 201 | /** |
| 202 | * Get the page title. |
| 203 | * |
| 204 | * @param WP_Post $page - the page. |
| 205 | * @return string $page_title - the page title. |
| 206 | */ |
| 207 | private function get_page_title( $page ) { |
| 208 | $title = $page->post_title; |
| 209 | if ( '' === $title ) { |
| 210 | /* translators: %d: ID of a post. */ |
| 211 | $title = sprintf( __( '#%d (no title)', 'jetpack' ), $page->ID ); |
| 212 | } |
| 213 | |
| 214 | /** |
| 215 | * Filters the page title when creating an HTML drop-down list of pages. |
| 216 | * |
| 217 | * @since 3.1.0 |
| 218 | * |
| 219 | * @param string $title Page title. |
| 220 | * @param WP_Post $page Page data object. |
| 221 | */ |
| 222 | $title = apply_filters( 'list_pages', $title, $page ); |
| 223 | return $title; |
| 224 | } |
| 225 | } |