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| 1 | +<?php //phpcs:ignore WordPress.Files.FileName.InvalidClassFileName | |
| 2 | + | |
| 3 | +use Automattic\Jetpack\Assets; | |
| 4 | +use Automattic\Jetpack\Post_Media\Images; | |
| 5 | +use Automattic\Jetpack\Stats\Tracking_Pixel as Stats_Tracking_Pixel; | |
| 6 | +use Automattic\Jetpack\Sync\Functions; | |
| 7 | + | |
| 8 | +/** | |
| 9 | + * Manages compatibility with the amp-wp plugin | |
| 10 | + * | |
| 11 | + * @see https://github.com/Automattic/amp-wp | |
| 12 | + */ | |
| 13 | +class Jetpack_AMP_Support { | |
| 14 | + | |
| 15 | + /** | |
| 16 | + * Apply custom AMP changes on the front-end. | |
| 17 | + */ | |
| 18 | + public static function init() { | |
| 19 | + | |
| 20 | + // Add Stats tracking pixel on Jetpack sites when the Stats module is active. | |
| 21 | + if ( | |
| 22 | + Jetpack::is_module_active( 'stats' ) | |
| 23 | + && ! ( defined( 'IS_WPCOM' ) && IS_WPCOM ) | |
| 24 | + ) { | |
| 25 | + add_action( 'amp_post_template_footer', array( 'Jetpack_AMP_Support', 'add_stats_pixel' ) ); | |
| 26 | + } | |
| 27 | + | |
| 28 | + // Sharing. | |
| 29 | + add_filter( 'jetpack_sharing_display_markup', array( 'Jetpack_AMP_Support', 'render_sharing_html' ), 10, 2 ); | |
| 30 | + add_filter( 'sharing_enqueue_scripts', array( 'Jetpack_AMP_Support', 'amp_disable_sharedaddy_css' ) ); | |
| 31 | + add_action( 'wp_enqueue_scripts', array( 'Jetpack_AMP_Support', 'amp_enqueue_sharing_css' ) ); | |
| 32 | + | |
| 33 | + // Sharing for Reader mode. | |
| 34 | + if ( function_exists( 'jetpack_social_menu_include_svg_icons' ) ) { | |
| 35 | + add_action( 'amp_post_template_footer', 'jetpack_social_menu_include_svg_icons' ); | |
| 36 | + } | |
| 37 | + add_action( 'amp_post_template_css', array( 'Jetpack_AMP_Support', 'amp_reader_sharing_css' ), 10, 0 ); | |
| 38 | + | |
| 39 | + // enforce freedom mode for videopress. | |
| 40 | + add_filter( 'videopress_shortcode_options', array( 'Jetpack_AMP_Support', 'videopress_enable_freedom_mode' ) ); | |
| 41 | + | |
| 42 | + // include Jetpack og tags when rendering native AMP head. | |
| 43 | + add_action( 'amp_post_template_head', array( 'Jetpack_AMP_Support', 'amp_post_jetpack_og_tags' ) ); | |
| 44 | + | |
| 45 | + // Post rendering changes for legacy AMP. | |
| 46 | + add_action( 'pre_amp_render_post', array( 'Jetpack_AMP_Support', 'amp_disable_the_content_filters' ) ); | |
| 47 | + | |
| 48 | + // Disable Comment Likes. | |
| 49 | + add_filter( 'jetpack_comment_likes_enabled', array( 'Jetpack_AMP_Support', 'comment_likes_enabled' ) ); | |
| 50 | + | |
| 51 | + // Transitional mode AMP should not have comment likes. | |
| 52 | + add_filter( 'the_content', array( 'Jetpack_AMP_Support', 'disable_comment_likes_before_the_content' ) ); | |
| 53 | + | |
| 54 | + // Add post template metadata for legacy AMP. | |
| 55 | + add_filter( 'amp_post_template_metadata', array( 'Jetpack_AMP_Support', 'amp_post_template_metadata' ), 10, 2 ); | |
| 56 | + | |
| 57 | + // Filter photon image args for AMP Stories. | |
| 58 | + add_filter( 'jetpack_photon_post_image_args', array( 'Jetpack_AMP_Support', 'filter_photon_post_image_args_for_stories' ), 10, 2 ); | |
| 59 | + | |
| 60 | + // Sync the amp-options. | |
| 61 | + add_filter( 'jetpack_options_whitelist', array( 'Jetpack_AMP_Support', 'filter_jetpack_options_safelist' ) ); | |
| 62 | + } | |
| 63 | + | |
| 64 | + /** | |
| 65 | + * Disable the Comment Likes feature on AMP views. | |
| 66 | + * | |
| 67 | + * @param bool $enabled Should comment likes be enabled. | |
| 68 | + */ | |
| 69 | + public static function comment_likes_enabled( $enabled ) { | |
| 70 | + return $enabled && ! self::is_amp_request(); | |
| 71 | + } | |
| 72 | + | |
| 73 | + /** | |
| 74 | + * Apply custom AMP changes in wp-admin. | |
| 75 | + */ | |
| 76 | + public static function admin_init() { | |
| 77 | + // disable Likes metabox for post editor if AMP canonical disabled. | |
| 78 | + add_filter( 'post_flair_disable', array( 'Jetpack_AMP_Support', 'is_amp_canonical' ), 99 ); | |
| 79 | + } | |
| 80 | + | |
| 81 | + /** | |
| 82 | + * Is the page in AMP 'canonical mode'. | |
| 83 | + * Used when themes register support for AMP with `add_theme_support( 'amp' )`. | |
| 84 | + * | |
| 85 | + * @return bool is_amp_canonical | |
| 86 | + */ | |
| 87 | + public static function is_amp_canonical() { | |
| 88 | + return function_exists( 'amp_is_canonical' ) && amp_is_canonical(); | |
| 89 | + } | |
| 90 | + | |
| 91 | + /** | |
| 92 | + * Is AMP available for this request | |
| 93 | + * This returns false for admin, CLI requests etc. | |
| 94 | + * | |
| 95 | + * @return bool is_amp_available | |
| 96 | + */ | |
| 97 | + public static function is_amp_available() { | |
| 98 | + return ( function_exists( 'amp_is_available' ) && amp_is_available() ); | |
| 99 | + } | |
| 100 | + | |
| 101 | + /** | |
| 102 | + * Does the page return AMP content. | |
| 103 | + * | |
| 104 | + * @return bool $is_amp_request Are we on am AMP view. | |
| 105 | + */ | |
| 106 | + public static function is_amp_request() { | |
| 107 | + $is_amp_request = ( function_exists( 'is_amp_endpoint' ) && is_amp_endpoint() ); | |
| 108 | + | |
| 109 | + /** | |
| 110 | + * Returns true if the current request should return valid AMP content. | |
| 111 | + * | |
| 112 | + * @since 6.2.0 | |
| 113 | + * | |
| 114 | + * @param boolean $is_amp_request Is this request supposed to return valid AMP content? | |
| 115 | + */ | |
| 116 | + return apply_filters( 'jetpack_is_amp_request', $is_amp_request ); | |
| 117 | + } | |
| 118 | + | |
| 119 | + /** | |
| 120 | + * Determines whether the legacy AMP post templates are being used. | |
| 121 | + * | |
| 122 | + * @since 10.6.0 | |
| 123 | + * | |
| 124 | + * @return bool | |
| 125 | + */ | |
| 126 | + public static function is_amp_legacy() { | |
| 127 | + return ( function_exists( 'amp_is_legacy' ) && amp_is_legacy() ); | |
| 128 | + } | |
| 129 | + | |
| 130 | + /** | |
| 131 | + * Remove content filters added by Jetpack. | |
| 132 | + */ | |
| 133 | + public static function amp_disable_the_content_filters() { | |
| 134 | + if ( defined( 'IS_WPCOM' ) && IS_WPCOM ) { | |
| 135 | + add_filter( 'protected_embeds_use_form_post', '__return_false' ); | |
| 136 | + remove_filter( 'the_title', 'widont' ); | |
| 137 | + } | |
| 138 | + | |
| 139 | + remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'filter' ), 11 ); | |
| 140 | + remove_filter( 'pre_kses', array( 'Filter_Embedded_HTML_Objects', 'maybe_create_links' ), 100 ); | |
| 141 | + } | |
| 142 | + | |
| 143 | + /** | |
| 144 | + * Do not add comment likes on AMP requests. | |
| 145 | + * | |
| 146 | + * @param string $content Post content. | |
| 147 | + */ | |
| 148 | + public static function disable_comment_likes_before_the_content( $content ) { | |
| 149 | + if ( self::is_amp_request() ) { | |
| 150 | + remove_filter( 'comment_text', 'comment_like_button', 12 ); | |
| 151 | + } | |
| 152 | + return $content; | |
| 153 | + } | |
| 154 | + | |
| 155 | + /** | |
| 156 | + * Add Jetpack stats pixel. | |
| 157 | + * | |
| 158 | + * @since 6.2.1 | |
| 159 | + */ | |
| 160 | + public static function add_stats_pixel() { | |
| 161 | + if ( ! has_action( 'wp_footer', array( Stats_Tracking_Pixel::class, 'add_amp_pixel' ) ) ) { | |
| 162 | + return; | |
| 163 | + } | |
| 164 | + | |
| 165 | + $stats_data = Stats_Tracking_Pixel::build_view_data(); | |
| 166 | + Stats_Tracking_Pixel::render_amp_footer( $stats_data ); | |
| 167 | + } | |
| 168 | + | |
| 169 | + /** | |
| 170 | + * Add publisher and image metadata to legacy AMP post. | |
| 171 | + * | |
| 172 | + * @since 6.2.0 | |
| 173 | + * | |
| 174 | + * @param array $metadata Metadata array. | |
| 175 | + * @param WP_Post $post Post. | |
| 176 | + * @return array Modified metadata array. | |
| 177 | + */ | |
| 178 | + public static function amp_post_template_metadata( $metadata, $post ) { | |
| 179 | + if ( isset( $metadata['publisher'] ) && ! isset( $metadata['publisher']['logo'] ) ) { | |
| 180 | + $metadata = self::add_site_icon_to_metadata( $metadata ); | |
| 181 | + } | |
| 182 | + | |
| 183 | + if ( ! isset( $metadata['image'] ) && ! empty( $post ) ) { | |
| 184 | + $metadata = self::add_image_to_metadata( $metadata, $post ); | |
| 185 | + } | |
| 186 | + | |
| 187 | + return $metadata; | |
| 188 | + } | |
| 189 | + | |
| 190 | + /** | |
| 191 | + * Add blavatar to legacy AMP post metadata. | |
| 192 | + * | |
| 193 | + * @since 6.2.0 | |
| 194 | + * | |
| 195 | + * @param array $metadata Metadata. | |
| 196 | + * | |
| 197 | + * @return array Metadata. | |
| 198 | + */ | |
| 199 | + private static function add_site_icon_to_metadata( $metadata ) { | |
| 200 | + $size = 60; | |
| 201 | + $site_icon_url = class_exists( 'Automattic\\Jetpack\\Sync\\Functions' ) ? Functions::site_icon_url( $size ) : ''; | |
| 202 | + | |
| 203 | + if ( function_exists( 'blavatar_domain' ) ) { | |
| 204 | + $metadata['publisher']['logo'] = array( | |
| 205 | + '@type' => 'ImageObject', | |
| 206 | + 'url' => blavatar_url( blavatar_domain( site_url() ), 'img', $size, self::staticize_subdomain( 'https://wordpress.com/i/favicons/apple-touch-icon-60x60.png' ) ), | |
| 207 | + 'width' => $size, | |
| 208 | + 'height' => $size, | |
| 209 | + ); | |
| 210 | + } elseif ( $site_icon_url ) { | |
| 211 | + $metadata['publisher']['logo'] = array( | |
| 212 | + '@type' => 'ImageObject', | |
| 213 | + 'url' => $site_icon_url, | |
| 214 | + 'width' => $size, | |
| 215 | + 'height' => $size, | |
| 216 | + ); | |
| 217 | + } | |
| 218 | + | |
| 219 | + return $metadata; | |
| 220 | + } | |
| 221 | + | |
| 222 | + /** | |
| 223 | + * Add image to legacy AMP post metadata. | |
| 224 | + * | |
| 225 | + * @since 6.2.0 | |
| 226 | + * | |
| 227 | + * @param array $metadata Metadata. | |
| 228 | + * @param WP_Post $post Post. | |
| 229 | + * @return array Metadata. | |
| 230 | + */ | |
| 231 | + private static function add_image_to_metadata( $metadata, $post ) { | |
| 232 | + $image_args = array( | |
| 233 | + 'fallback_to_avatars' => true, | |
| 234 | + 'avatar_size' => 200, | |
| 235 | + // AMP already attempts these. | |
| 236 | + 'from_thumbnail' => false, | |
| 237 | + 'from_attachment' => false, | |
| 238 | + ); | |
| 239 | + | |
| 240 | + // Every source left enabled above is parsed out of the body. | |
| 241 | + if ( \Automattic\Jetpack\SEO\Content_Gate::is_gated( $post ) ) { | |
| 242 | + $image_args += array( | |
| 243 | + 'from_slideshow' => false, | |
| 244 | + 'from_gallery' => false, | |
| 245 | + 'from_blocks' => false, | |
| 246 | + 'from_html' => false, | |
| 247 | + ); | |
| 248 | + } | |
| 249 | + | |
| 250 | + $image = Images::get_image( $post->ID, $image_args ); | |
| 251 | + | |
| 252 | + if ( empty( $image ) ) { | |
| 253 | + return self::add_fallback_image_to_metadata( $metadata ); | |
| 254 | + } | |
| 255 | + | |
| 256 | + if ( ! isset( $image['src_width'] ) ) { | |
| 257 | + $dimensions = self::extract_image_dimensions_from_getimagesize( | |
| 258 | + array( | |
| 259 | + $image['src'] => false, | |
| 260 | + ) | |
| 261 | + ); | |
| 262 | + | |
| 263 | + if ( false !== $dimensions[ $image['src'] ] ) { | |
| 264 | + $image['src_width'] = $dimensions['width']; | |
| 265 | + $image['src_height'] = $dimensions['height']; | |
| 266 | + } | |
| 267 | + } | |
| 268 | + | |
| 269 | + $metadata['image'] = array( | |
| 270 | + '@type' => 'ImageObject', | |
| 271 | + 'url' => $image['src'], | |
| 272 | + ); | |
| 273 | + if ( isset( $image['src_width'] ) ) { | |
| 274 | + $metadata['image']['width'] = $image['src_width']; | |
| 275 | + } | |
| 276 | + if ( isset( $image['src_width'] ) ) { | |
| 277 | + $metadata['image']['height'] = $image['src_height']; | |
| 278 | + } | |
| 279 | + | |
| 280 | + return $metadata; | |
| 281 | + } | |
| 282 | + | |
| 283 | + /** | |
| 284 | + * Add fallback image to legacy AMP post metadata. | |
| 285 | + * | |
| 286 | + * @since 6.2.0 | |
| 287 | + * | |
| 288 | + * @param array $metadata Metadata. | |
| 289 | + * @return array Metadata. | |
| 290 | + */ | |
| 291 | + private static function add_fallback_image_to_metadata( $metadata ) { | |
| 292 | + /** This filter is documented in functions.opengraph.php */ | |
| 293 | + $default_image = apply_filters( 'jetpack_open_graph_image_default', 'https://wordpress.com/i/blank.jpg' ); | |
| 294 | + | |
| 295 | + $metadata['image'] = array( | |
| 296 | + '@type' => 'ImageObject', | |
| 297 | + 'url' => self::staticize_subdomain( $default_image ), | |
| 298 | + 'width' => 200, | |
| 299 | + 'height' => 200, | |
| 300 | + ); | |
| 301 | + | |
| 302 | + return $metadata; | |
| 303 | + } | |
| 304 | + | |
| 305 | + /** | |
| 306 | + * Return static WordPress.com domain to use to load resources from WordPress.com. | |
| 307 | + * | |
| 308 | + * @param string $domain Asset URL. | |
| 309 | + */ | |
| 310 | + private static function staticize_subdomain( $domain ) { | |
| 311 | + // deal with WPCOM vs Jetpack. | |
| 312 | + if ( function_exists( 'staticize_subdomain' ) ) { | |
| 313 | + return staticize_subdomain( $domain ); | |
| 314 | + } else { | |
| 315 | + return Assets::staticize_subdomain( $domain ); | |
| 316 | + } | |
| 317 | + } | |
| 318 | + | |
| 319 | + /** | |
| 320 | + * Extract image dimensions via wpcom/imagesize, only on WPCOM | |
| 321 | + * | |
| 322 | + * @since 6.2.0 | |
| 323 | + * | |
| 324 | + * @param array $dimensions Dimensions. | |
| 325 | + * @return array Dimensions. | |
| 326 | + */ | |
| 327 | + private static function extract_image_dimensions_from_getimagesize( $dimensions ) { | |
| 328 | + if ( ! ( defined( 'IS_WPCOM' ) && IS_WPCOM && function_exists( 'require_lib' ) ) ) { | |
| 329 | + return $dimensions; | |
| 330 | + } | |
| 331 | + require_lib( 'wpcom/imagesize' ); | |
| 332 | + | |
| 333 | + foreach ( $dimensions as $url => $value ) { | |
| 334 | + if ( is_array( $value ) ) { | |
| 335 | + continue; | |
| 336 | + } | |
| 337 | + $result = wpcom_getimagesize( $url ); | |
| 338 | + if ( is_array( $result ) ) { | |
| 339 | + $dimensions[ $url ] = array( | |
| 340 | + 'width' => $result[0], | |
| 341 | + 'height' => $result[1], | |
| 342 | + ); | |
| 343 | + } | |
| 344 | + } | |
| 345 | + | |
| 346 | + return $dimensions; | |
| 347 | + } | |
| 348 | + | |
| 349 | + /** | |
| 350 | + * Display Open Graph Meta tags in AMP views. | |
| 351 | + */ | |
| 352 | + public static function amp_post_jetpack_og_tags() { | |
| 353 | + if ( ! ( defined( 'IS_WPCOM' ) && IS_WPCOM ) ) { | |
| 354 | + Jetpack::init()->check_open_graph(); | |
| 355 | + } | |
| 356 | + | |
| 357 | + if ( function_exists( 'jetpack_og_tags' ) ) { | |
| 358 | + jetpack_og_tags(); | |
| 359 | + } | |
| 360 | + } | |
| 361 | + | |
| 362 | + /** | |
| 363 | + * Force Freedom mode in VideoPress. | |
| 364 | + * | |
| 365 | + * @param array $options Array of VideoPress shortcode options. | |
| 366 | + */ | |
| 367 | + public static function videopress_enable_freedom_mode( $options ) { | |
| 368 | + if ( self::is_amp_request() ) { | |
| 369 | + $options['freedom'] = true; | |
| 370 | + } | |
| 371 | + return $options; | |
| 372 | + } | |
| 373 | + | |
| 374 | + /** | |
| 375 | + * Display custom markup for the sharing buttons when in an AMP view. | |
| 376 | + * | |
| 377 | + * @param string $markup Content markup of the Jetpack sharing links. | |
| 378 | + * @param array $sharing_enabled Array of Sharing Services currently enabled. | |
| 379 | + */ | |
| 380 | + public static function render_sharing_html( $markup, $sharing_enabled ) { | |
| 381 | + global $post; | |
| 382 | + | |
| 383 | + if ( empty( $post ) ) { | |
| 384 | + return ''; | |
| 385 | + } | |
| 386 | + | |
| 387 | + if ( ! self::is_amp_request() ) { | |
| 388 | + return $markup; | |
| 389 | + } | |
| 390 | + | |
| 391 | + remove_action( 'wp_footer', 'sharing_add_footer' ); | |
| 392 | + if ( empty( $sharing_enabled ) ) { | |
| 393 | + return $markup; | |
| 394 | + } | |
| 395 | + | |
| 396 | + $sharing_links = array(); | |
| 397 | + foreach ( $sharing_enabled['visible'] as $service ) { | |
| 398 | + $sharing_link = $service->get_amp_display( $post ); | |
| 399 | + if ( ! empty( $sharing_link ) ) { | |
| 400 | + $sharing_links[] = $sharing_link; | |
| 401 | + } | |
| 402 | + } | |
| 403 | + | |
| 404 | + // Replace the existing unordered list with AMP sharing buttons. | |
| 405 | + $markup = preg_replace( '#<ul>(.+)</ul>#', implode( '', $sharing_links ), $markup ); | |
| 406 | + | |
| 407 | + // Remove any lingering share-end list items. | |
| 408 | + $markup = str_replace( '<li class="share-end"></li>', '', $markup ); | |
| 409 | + | |
| 410 | + return $markup; | |
| 411 | + } | |
| 412 | + | |
| 413 | + /** | |
| 414 | + * Tells Jetpack not to enqueue CSS for share buttons. | |
| 415 | + * | |
| 416 | + * @param bool $enqueue Whether or not to enqueue. | |
| 417 | + * @return bool Whether or not to enqueue. | |
| 418 | + */ | |
| 419 | + public static function amp_disable_sharedaddy_css( $enqueue ) { | |
| 420 | + if ( self::is_amp_request() ) { | |
| 421 | + $enqueue = false; | |
| 422 | + } | |
| 423 | + | |
| 424 | + return $enqueue; | |
| 425 | + } | |
| 426 | + | |
| 427 | + /** | |
| 428 | + * Enqueues the AMP specific sharing styles for the sharing icons. | |
| 429 | + */ | |
| 430 | + public static function amp_enqueue_sharing_css() { | |
| 431 | + if ( | |
| 432 | + Jetpack::is_module_active( 'sharedaddy' ) | |
| 433 | + && self::is_amp_request() | |
| 434 | + && ! self::is_amp_legacy() | |
| 435 | + ) { | |
| 436 | + wp_enqueue_style( 'sharedaddy-amp', plugin_dir_url( __DIR__ ) . 'modules/sharedaddy/amp-sharing.css', array( 'social-logos' ), JETPACK__VERSION ); | |
| 437 | + } | |
| 438 | + } | |
| 439 | + | |
| 440 | + /** | |
| 441 | + * For the AMP Reader mode template, include styles that we need. | |
| 442 | + */ | |
| 443 | + public static function amp_reader_sharing_css() { | |
| 444 | + // If sharing is not enabled, we should not proceed to render the CSS. | |
| 445 | + if ( ! defined( 'JETPACK_SOCIAL_LOGOS_DIR' ) || ! defined( 'JETPACK_SOCIAL_LOGOS_URL' ) || ! defined( 'WP_SHARING_PLUGIN_DIR' ) ) { | |
| 446 | + return; | |
| 447 | + } | |
| 448 | + | |
| 449 | + /* | |
| 450 | + * We'll need to output the full contents of the 2 files | |
| 451 | + * in the head on AMP views. We can't rely on regular enqueues here. | |
| 452 | + * @todo As of AMP plugin v1.5, you can actually rely on regular enqueues thanks to https://github.com/ampproject/amp-wp/pull/4299. Once WPCOM upgrades AMP, then this method can be eliminated. | |
| 453 | + * | |
| 454 | + * phpcs:disable WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents | |
| 455 | + * phpcs:disable WordPress.Security.EscapeOutput.OutputNotEscaped | |
| 456 | + */ | |
| 457 | + $css = file_get_contents( JETPACK_SOCIAL_LOGOS_DIR . 'social-logos.css' ); | |
| 458 | + $css = preg_replace( '#(?<=url\(")(?=social-logos\.)#', JETPACK_SOCIAL_LOGOS_URL, $css ); // Make sure font files get their absolute paths. | |
| 459 | + echo $css; | |
| 460 | + echo file_get_contents( WP_SHARING_PLUGIN_DIR . 'amp-sharing.css' ); | |
| 461 | + | |
| 462 | + /* | |
| 463 | + * phpcs:enable WordPress.WP.AlternativeFunctions.file_get_contents_file_get_contents | |
| 464 | + * phpcs:enable WordPress.Security.EscapeOutput.OutputNotEscaped | |
| 465 | + */ | |
| 466 | + } | |
| 467 | + | |
| 468 | + /** | |
| 469 | + * Ensure proper Photon image dimensions for AMP Stories. | |
| 470 | + * | |
| 471 | + * @param array $args Array of Photon Arguments. | |
| 472 | + * @param array $details { | |
| 473 | + * Array of image details. | |
| 474 | + * | |
| 475 | + * @type string $tag Image tag (Image HTML output). | |
| 476 | + * @type string $src Image URL. | |
| 477 | + * @type string $src_orig Original Image URL. | |
| 478 | + * @type int|false $width Image width. | |
| 479 | + * @type int|false $height Image height. | |
| 480 | + * @type int|false $width_orig Original image width before constrained by content_width. | |
| 481 | + * @type int|false $height_orig Original Image height before constrained by content_width. | |
| 482 | + * @type string $transform_orig Original transform before constrained by content_width. | |
| 483 | + * } | |
| 484 | + * @return array Args. | |
| 485 | + */ | |
| 486 | + public static function filter_photon_post_image_args_for_stories( $args, $details ) { | |
| 487 | + if ( ! is_singular( 'amp_story' ) ) { | |
| 488 | + return $args; | |
| 489 | + } | |
| 490 | + | |
| 491 | + // Percentage-based dimensions are not allowed in AMP, so this shouldn't happen, but short-circuit just in case. | |
| 492 | + if ( str_contains( $details['width_orig'], '%' ) || str_contains( $details['height_orig'], '%' ) ) { | |
| 493 | + return $args; | |
| 494 | + } | |
| 495 | + | |
| 496 | + $max_height = 1280; // See image size with the slug \AMP_Story_Post_Type::MAX_IMAGE_SIZE_SLUG. | |
| 497 | + $transform = $details['transform_orig']; | |
| 498 | + $width = $details['width_orig']; | |
| 499 | + $height = $details['height_orig']; | |
| 500 | + | |
| 501 | + // If height is available, constrain to $max_height. | |
| 502 | + if ( false !== $height ) { | |
| 503 | + if ( $height > $max_height && false !== $height ) { | |
| 504 | + $width = ( $max_height * $width ) / $height; | |
| 505 | + $height = $max_height; | |
| 506 | + } elseif ( $height > $max_height ) { | |
| 507 | + $height = $max_height; | |
| 508 | + } | |
| 509 | + } | |
| 510 | + | |
| 511 | + /* | |
| 512 | + * Set a height if none is found. | |
| 513 | + * If height is set in this manner and height is available, use `fit` instead of `resize` to prevent skewing. | |
| 514 | + */ | |
| 515 | + if ( false === $height ) { | |
| 516 | + $height = $max_height; | |
| 517 | + if ( false !== $width ) { | |
| 518 | + $transform = 'fit'; | |
| 519 | + } | |
| 520 | + } | |
| 521 | + | |
| 522 | + // Build array of Photon args and expose to filter before passing to Photon URL function. | |
| 523 | + $args = array(); | |
| 524 | + | |
| 525 | + if ( false !== $width && false !== $height ) { | |
| 526 | + $args[ $transform ] = $width . ',' . $height; | |
| 527 | + } elseif ( false !== $width ) { | |
| 528 | + $args['w'] = $width; | |
| 529 | + } elseif ( false !== $height ) { | |
| 530 | + $args['h'] = $height; | |
| 531 | + } | |
| 532 | + | |
| 533 | + return $args; | |
| 534 | + } | |
| 535 | + | |
| 536 | + /** | |
| 537 | + * Adds amp-options to the list of options to sync, if AMP is available | |
| 538 | + * | |
| 539 | + * @param array $options_safelist Safelist of options to sync. | |
| 540 | + * | |
| 541 | + * @return array Updated options safelist | |
| 542 | + */ | |
| 543 | + public static function filter_jetpack_options_safelist( $options_safelist ) { | |
| 544 | + if ( function_exists( 'is_amp_endpoint' ) ) { | |
| 545 | + $options_safelist[] = 'amp-options'; | |
| 546 | + } | |
| 547 | + return $options_safelist; | |
| 548 | + } | |
| 549 | +} | |
