| 1 |
<?php |
| 2 |
/** |
| 3 |
* Widget class |
| 4 |
* |
| 5 |
* @package sharing-image |
| 6 |
* @author Anton Lukin |
| 7 |
*/ |
| 8 |
|
| 9 |
namespace Sharing_Image; |
| 10 |
|
| 11 |
if ( ! defined( 'ABSPATH' ) ) { |
| 12 |
die; |
| 13 |
} |
| 14 |
|
| 15 |
/** |
| 16 |
* Widget class |
| 17 |
* |
| 18 |
* @class Widget |
| 19 |
*/ |
| 20 |
class Widget { |
| 21 |
/** |
| 22 |
* Post meta key to store poster image. |
| 23 |
* |
| 24 |
* @var string |
| 25 |
*/ |
| 26 |
const WIDGET_META = '_sharing_image'; |
| 27 |
|
| 28 |
/** |
| 29 |
* The instance of Settings class. |
| 30 |
* |
| 31 |
* @var instance |
| 32 |
*/ |
| 33 |
private $settings; |
| 34 |
|
| 35 |
/** |
| 36 |
* Widget constructor. |
| 37 |
*/ |
| 38 |
public function __construct() { |
| 39 |
$this->settings = new Settings(); |
| 40 |
} |
| 41 |
|
| 42 |
/** |
| 43 |
* Init class actions and filters. |
| 44 |
*/ |
| 45 |
public function init() { |
| 46 |
// Init taxonomy term widget. |
| 47 |
add_action( 'admin_init', array( $this, 'init_taxonomy_widget' ) ); |
| 48 |
|
| 49 |
// Init post metabox widget. |
| 50 |
add_action( 'admin_init', array( $this, 'init_metabox_widget' ) ); |
| 51 |
|
| 52 |
// Handle metabox AJAX requests. |
| 53 |
add_action( 'admin_init', array( $this, 'handle_ajax_requests' ) ); |
| 54 |
} |
| 55 |
|
| 56 |
/** |
| 57 |
* Init metabox on post editing page. |
| 58 |
*/ |
| 59 |
public function init_metabox_widget() { |
| 60 |
/** |
| 61 |
* Easy way to hide metabox. |
| 62 |
* |
| 63 |
* @param bool $hide_metabox Set true to hide metabox. |
| 64 |
*/ |
| 65 |
$hide_metabox = apply_filters( 'sharing_image_hide_metabox', false ); |
| 66 |
|
| 67 |
if ( $hide_metabox ) { |
| 68 |
return; |
| 69 |
} |
| 70 |
|
| 71 |
add_action( 'add_meta_boxes', array( $this, 'add_metabox' ) ); |
| 72 |
add_action( 'save_post', array( $this, 'save_metabox' ), 10, 2 ); |
| 73 |
|
| 74 |
// Add required assets and objects. |
| 75 |
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_metabox_assets' ) ); |
| 76 |
} |
| 77 |
|
| 78 |
/** |
| 79 |
* Init widget on taxonomy term editing page. |
| 80 |
*/ |
| 81 |
public function init_taxonomy_widget() { |
| 82 |
// Skip if the Premium is not active. |
| 83 |
if ( ! $this->settings->is_premium_features() ) { |
| 84 |
return; |
| 85 |
} |
| 86 |
|
| 87 |
$taxonomies = $this->get_widget_taxonomies(); |
| 88 |
|
| 89 |
foreach ( $taxonomies as $taxonomy ) { |
| 90 |
// Display taxonomy term widget. |
| 91 |
add_action( $taxonomy . '_edit_form', array( $this, 'display_widget' ), 10, 2 ); |
| 92 |
|
| 93 |
// Save taxonomy term meta. |
| 94 |
add_action( 'edited_' . $taxonomy, array( $this, 'save_taxonomy' ) ); |
| 95 |
|
| 96 |
// Enqueue term assets. |
| 97 |
add_action( 'admin_enqueue_scripts', array( $this, 'enqueue_taxonomy_assets' ) ); |
| 98 |
} |
| 99 |
} |
| 100 |
|
| 101 |
/** |
| 102 |
* Add metabox to post editing page. |
| 103 |
*/ |
| 104 |
public function add_metabox() { |
| 105 |
add_meta_box( |
| 106 |
'sharing-image-metabox', |
| 107 |
esc_html__( 'Sharing Image', 'sharing image' ), |
| 108 |
array( $this, 'display_widget' ), |
| 109 |
$this->get_metabox_post_types(), |
| 110 |
'side' |
| 111 |
); |
| 112 |
} |
| 113 |
|
| 114 |
/** |
| 115 |
* Add metabox scripts and styles to admin page. |
| 116 |
* |
| 117 |
* @param string $hook_suffix The current admin page. |
| 118 |
*/ |
| 119 |
public function enqueue_metabox_assets( $hook_suffix ) { |
| 120 |
if ( ! in_array( $hook_suffix, array( 'post.php', 'post-new.php' ), true ) ) { |
| 121 |
return; |
| 122 |
} |
| 123 |
|
| 124 |
$screen = get_current_screen(); |
| 125 |
|
| 126 |
if ( ! in_array( $screen->post_type, $this->get_metabox_post_types(), true ) ) { |
| 127 |
return; |
| 128 |
} |
| 129 |
|
| 130 |
$post = get_post(); |
| 131 |
|
| 132 |
// Get post meta for current post ID. |
| 133 |
$meta = get_post_meta( $post->ID, self::WIDGET_META, true ); |
| 134 |
|
| 135 |
$this->enqueue_scripts( $this->create_script_object( $meta, 'metabox' ) ); |
| 136 |
$this->enqueue_styles(); |
| 137 |
} |
| 138 |
|
| 139 |
/** |
| 140 |
* Add widget scripts and styles to admin page. |
| 141 |
* |
| 142 |
* @param string $hook_suffix The current admin page. |
| 143 |
*/ |
| 144 |
public function enqueue_taxonomy_assets( $hook_suffix ) { |
| 145 |
if ( 'term.php' !== $hook_suffix ) { |
| 146 |
return; |
| 147 |
} |
| 148 |
|
| 149 |
$screen = get_current_screen(); |
| 150 |
|
| 151 |
if ( ! in_array( $screen->taxonomy, $this->get_widget_taxonomies(), true ) ) { |
| 152 |
return; |
| 153 |
} |
| 154 |
|
| 155 |
// phpcs:disable WordPress.Security.NonceVerification |
| 156 |
if ( ! isset( $_REQUEST['tag_ID'] ) ) { |
| 157 |
return; |
| 158 |
} |
| 159 |
|
| 160 |
$term_id = absint( $_REQUEST['tag_ID'] ); |
| 161 |
// phpcs:enable WordPress.Security.NonceVerification |
| 162 |
|
| 163 |
// Get term meta for current term ID. |
| 164 |
$meta = get_term_meta( $term_id, self::WIDGET_META, true ); |
| 165 |
|
| 166 |
$this->enqueue_scripts( $this->create_script_object( $meta, 'taxonomy' ) ); |
| 167 |
$this->enqueue_styles(); |
| 168 |
} |
| 169 |
|
| 170 |
/** |
| 171 |
* Save metabox fields. |
| 172 |
* |
| 173 |
* @param int $post_id Post ID. |
| 174 |
* @param WP_Post $post Post object. |
| 175 |
*/ |
| 176 |
public function save_metabox( $post_id, $post ) { |
| 177 |
if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) { |
| 178 |
return; |
| 179 |
} |
| 180 |
|
| 181 |
if ( wp_is_post_revision( $post_id ) ) { |
| 182 |
return; |
| 183 |
} |
| 184 |
|
| 185 |
if ( ! isset( $_POST['sharing_image_nonce'] ) ) { |
| 186 |
return; |
| 187 |
} |
| 188 |
|
| 189 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput |
| 190 |
if ( ! wp_verify_nonce( $_POST['sharing_image_nonce'], basename( __FILE__ ) ) ) { |
| 191 |
return; |
| 192 |
} |
| 193 |
|
| 194 |
if ( ! current_user_can( 'edit_post', $post_id ) ) { |
| 195 |
return; |
| 196 |
} |
| 197 |
|
| 198 |
if ( ! isset( $_POST['sharing_image_picker'] ) ) { |
| 199 |
return; |
| 200 |
} |
| 201 |
|
| 202 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput |
| 203 |
$meta = $this->sanitize_picker( wp_unslash( $_POST['sharing_image_picker'] ) ); |
| 204 |
|
| 205 |
/** |
| 206 |
* Filters post meta on update. |
| 207 |
* |
| 208 |
* @param string $meta Updated post meta. |
| 209 |
* @param string $post_id Post ID. |
| 210 |
*/ |
| 211 |
$meta = apply_filters( 'sharing_image_update_post_meta', $meta, $post_id ); |
| 212 |
|
| 213 |
// Update post meta. |
| 214 |
update_post_meta( $post_id, self::WIDGET_META, $meta ); |
| 215 |
} |
| 216 |
|
| 217 |
/** |
| 218 |
* Save taxonomy fields. |
| 219 |
* |
| 220 |
* @param int $term_id Term ID. |
| 221 |
*/ |
| 222 |
public function save_taxonomy( $term_id ) { |
| 223 |
if ( ! isset( $_POST['sharing_image_nonce'] ) ) { |
| 224 |
return; |
| 225 |
} |
| 226 |
|
| 227 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput |
| 228 |
if ( ! wp_verify_nonce( $_POST['sharing_image_nonce'], basename( __FILE__ ) ) ) { |
| 229 |
return; |
| 230 |
} |
| 231 |
|
| 232 |
if ( ! current_user_can( 'edit_term', $term_id ) ) { |
| 233 |
return; |
| 234 |
} |
| 235 |
|
| 236 |
if ( ! isset( $_POST['sharing_image_picker'] ) ) { |
| 237 |
return; |
| 238 |
} |
| 239 |
|
| 240 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput |
| 241 |
$meta = $this->sanitize_picker( wp_unslash( $_POST['sharing_image_picker'] ) ); |
| 242 |
|
| 243 |
/** |
| 244 |
* Filters term meta on update. |
| 245 |
* |
| 246 |
* @param string $meta Updated term meta. |
| 247 |
* @param string $term_id Term ID. |
| 248 |
*/ |
| 249 |
$meta = apply_filters( 'sharing_image_update_term_meta', $meta, $term_id ); |
| 250 |
|
| 251 |
update_term_meta( $term_id, self::WIDGET_META, $meta ); |
| 252 |
} |
| 253 |
|
| 254 |
/** |
| 255 |
* Display widget. |
| 256 |
*/ |
| 257 |
public function display_widget() { |
| 258 |
include_once SHARING_IMAGE_DIR . 'templates/widget.php'; |
| 259 |
|
| 260 |
/** |
| 261 |
* Fires on widget template including. |
| 262 |
*/ |
| 263 |
do_action( 'sharing_image_widget' ); |
| 264 |
} |
| 265 |
|
| 266 |
/** |
| 267 |
* Handle widget AJAX requests. |
| 268 |
*/ |
| 269 |
public function handle_ajax_requests() { |
| 270 |
$actions = array( |
| 271 |
'generate' => 'generate_poster', |
| 272 |
); |
| 273 |
|
| 274 |
foreach ( $actions as $key => $method ) { |
| 275 |
$action = 'sharing_image_' . $key; |
| 276 |
|
| 277 |
if ( method_exists( $this, $method ) ) { |
| 278 |
add_action( 'wp_ajax_' . $action, array( $this, $method ) ); |
| 279 |
} |
| 280 |
} |
| 281 |
} |
| 282 |
|
| 283 |
/** |
| 284 |
* Generate poster by AJAX request. |
| 285 |
*/ |
| 286 |
public function generate_poster() { |
| 287 |
$check = check_ajax_referer( basename( __FILE__ ), 'sharing_image_nonce', false ); |
| 288 |
|
| 289 |
if ( false === $check ) { |
| 290 |
wp_send_json_error( __( 'Invalid security token. Reload the page and retry.', 'sharing-image' ), 403 ); |
| 291 |
} |
| 292 |
|
| 293 |
// phpcs:ignore WordPress.Security.ValidatedSanitizedInput |
| 294 |
$picker = $this->sanitize_picker( wp_unslash( $_POST['sharing_image_picker'] ) ); |
| 295 |
|
| 296 |
// Compose new poster. |
| 297 |
$poster = ( new Generator() )->compose( $picker ); |
| 298 |
|
| 299 |
if ( is_wp_error( $poster ) ) { |
| 300 |
wp_send_json_error( $poster->get_error_message(), 400 ); |
| 301 |
} |
| 302 |
|
| 303 |
wp_send_json_success( $poster ); |
| 304 |
} |
| 305 |
|
| 306 |
/** |
| 307 |
* Enqueue widget styles. |
| 308 |
*/ |
| 309 |
private function enqueue_styles() { |
| 310 |
wp_enqueue_style( |
| 311 |
'sharing-image-widget', |
| 312 |
SHARING_IMAGE_URL . 'assets/styles/widget.css', |
| 313 |
array(), |
| 314 |
SHARING_IMAGE_VERSION, |
| 315 |
'all' |
| 316 |
); |
| 317 |
} |
| 318 |
|
| 319 |
/** |
| 320 |
* Enqueue widget scripts. |
| 321 |
* |
| 322 |
* @param array $object Widget data object. |
| 323 |
*/ |
| 324 |
private function enqueue_scripts( $object ) { |
| 325 |
wp_enqueue_media(); |
| 326 |
|
| 327 |
wp_enqueue_script( |
| 328 |
'sharing-image-widget', |
| 329 |
SHARING_IMAGE_URL . 'assets/scripts/widget.js', |
| 330 |
array( 'wp-i18n', 'wp-polyfill-formdata' ), |
| 331 |
SHARING_IMAGE_VERSION, |
| 332 |
true |
| 333 |
); |
| 334 |
|
| 335 |
wp_set_script_translations( 'sharing-image-settings', 'sharing-image' ); |
| 336 |
|
| 337 |
// Add widget script object. |
| 338 |
wp_localize_script( 'sharing-image-widget', 'sharingImageWidget', $object ); |
| 339 |
} |
| 340 |
|
| 341 |
/** |
| 342 |
* Sanitize picker widget data before saving. |
| 343 |
* |
| 344 |
* @param array $picker Widget POST data. |
| 345 |
|
| 346 |
* @return array Sanitized picker fields. |
| 347 |
*/ |
| 348 |
private function sanitize_picker( $picker ) { |
| 349 |
$sanitized = array(); |
| 350 |
|
| 351 |
if ( isset( $picker['poster'] ) ) { |
| 352 |
$sanitized['poster'] = sanitize_text_field( $picker['poster'] ); |
| 353 |
} |
| 354 |
|
| 355 |
if ( ! empty( $picker['width'] ) ) { |
| 356 |
$sanitized['width'] = absint( $picker['width'] ); |
| 357 |
} |
| 358 |
|
| 359 |
if ( ! empty( $picker['height'] ) ) { |
| 360 |
$sanitized['height'] = absint( $picker['height'] ); |
| 361 |
} |
| 362 |
|
| 363 |
$template = 0; |
| 364 |
|
| 365 |
if ( isset( $picker['template'] ) ) { |
| 366 |
$template = absint( $picker['template'] ); |
| 367 |
|
| 368 |
if ( count( $this->settings->get_templates() ) <= $template ) { |
| 369 |
$template = 0; |
| 370 |
} |
| 371 |
} |
| 372 |
|
| 373 |
$sanitized['template'] = $template; |
| 374 |
|
| 375 |
if ( isset( $picker['fieldset'] ) ) { |
| 376 |
$fieldset = $picker['fieldset']; |
| 377 |
|
| 378 |
foreach ( $fieldset as $key => $fields ) { |
| 379 |
$sanitized['fieldset'][ $key ] = $this->sanitize_fieldset( $fields ); |
| 380 |
} |
| 381 |
} |
| 382 |
|
| 383 |
/** |
| 384 |
* Filters widget picker sanitized fields. |
| 385 |
* |
| 386 |
* @param array $sanitized List of sanitized picker fields. |
| 387 |
* @param array $picker List of picker fields before sanitization. |
| 388 |
*/ |
| 389 |
return apply_filters( 'sharing_image_sanitize_picker', $sanitized, $picker ); |
| 390 |
} |
| 391 |
|
| 392 |
/** |
| 393 |
* Sanitize picker widget fieldset list. |
| 394 |
* |
| 395 |
* @param array $fields Fieldset widget list. |
| 396 |
* |
| 397 |
* @return array Sanitized fieldset data. |
| 398 |
*/ |
| 399 |
public function sanitize_fieldset( $fields ) { |
| 400 |
$sanitized = array(); |
| 401 |
|
| 402 |
if ( ! empty( $fields['captions'] ) && is_array( $fields['captions'] ) ) { |
| 403 |
$sanitized['captions'] = array_map( 'sanitize_textarea_field', $fields['captions'] ); |
| 404 |
} |
| 405 |
|
| 406 |
if ( ! empty( $fields['attachment'] ) ) { |
| 407 |
$sanitized['attachment'] = absint( $fields['attachment'] ); |
| 408 |
} |
| 409 |
|
| 410 |
return $sanitized; |
| 411 |
} |
| 412 |
|
| 413 |
/** |
| 414 |
* Create script object to inject with widget. |
| 415 |
* |
| 416 |
* @param array $meta Term or Post meta data. |
| 417 |
* @param string $context Widget context. For example: metabox or taxonomy. |
| 418 |
|
| 419 |
* @return array Filtered widget script object. |
| 420 |
*/ |
| 421 |
private function create_script_object( $meta, $context ) { |
| 422 |
$object = array( |
| 423 |
'meta' => $meta, |
| 424 |
'nonce' => wp_create_nonce( basename( __FILE__ ) ), |
| 425 |
'context' => $context, |
| 426 |
|
| 427 |
'links' => array( |
| 428 |
'uploads' => esc_url( admin_url( 'upload.php' ) ), |
| 429 |
), |
| 430 |
|
| 431 |
'templates' => $this->settings->get_templates(), |
| 432 |
); |
| 433 |
|
| 434 |
/** |
| 435 |
* Filter widget script object. |
| 436 |
* |
| 437 |
* @param array $object Array of widget script object. |
| 438 |
*/ |
| 439 |
return apply_filters( 'sharing_image_widget_object', $object ); |
| 440 |
} |
| 441 |
|
| 442 |
/** |
| 443 |
* Get an array of post types where the metabox is displayed. |
| 444 |
* |
| 445 |
* @return array Array of post types. |
| 446 |
*/ |
| 447 |
private function get_metabox_post_types() { |
| 448 |
$post_types = get_post_types( |
| 449 |
array( |
| 450 |
'public' => true, |
| 451 |
) |
| 452 |
); |
| 453 |
|
| 454 |
unset( $post_types['attachment'] ); |
| 455 |
|
| 456 |
/** |
| 457 |
* Filter widget post types. |
| 458 |
* |
| 459 |
* @param array $post_types Array of post types for which the metabox is displayed. |
| 460 |
*/ |
| 461 |
return apply_filters( 'sharing_image_metabox_post_types', array_values( $post_types ) ); |
| 462 |
} |
| 463 |
|
| 464 |
/** |
| 465 |
* Get an array of taxonomeis where the widget is displayed. |
| 466 |
* |
| 467 |
* @return array Array of taxonomies. |
| 468 |
*/ |
| 469 |
private function get_widget_taxonomies() { |
| 470 |
$taxonomies = get_taxonomies( |
| 471 |
array( |
| 472 |
'public' => true, |
| 473 |
'show_ui' => true, |
| 474 |
) |
| 475 |
); |
| 476 |
|
| 477 |
/** |
| 478 |
* Filter the taxonomies where we need to show the poster settings. |
| 479 |
* |
| 480 |
* @param array $taxonomies List of taxonomies to show settings. |
| 481 |
*/ |
| 482 |
return apply_filters( 'sharing_image_widget_taxonomies', array_values( $taxonomies ) ); |
| 483 |
} |
| 484 |
} |
| 485 |
|
