| 1 |
<?php |
| 2 |
|
| 3 |
use OptimoleWP\Preload\Links; |
| 4 |
|
| 5 |
/** |
| 6 |
* The class handles the img tag replacements. |
| 7 |
* |
| 8 |
* @package \Optml\Inc |
| 9 |
* @author Optimole <friends@optimole.com> |
| 10 |
*/ |
| 11 |
final class Optml_Tag_Replacer extends Optml_App_Replacer { |
| 12 |
use Optml_Normalizer; |
| 13 |
use Optml_Validator; |
| 14 |
use Optml_Dam_Offload_Utils; |
| 15 |
|
| 16 |
/** |
| 17 |
* Cached object instance. |
| 18 |
* |
| 19 |
* @var Optml_Tag_Replacer |
| 20 |
*/ |
| 21 |
protected static $instance = null; |
| 22 |
|
| 23 |
/** |
| 24 |
* The number of images skipped from lazyload. |
| 25 |
* |
| 26 |
* @var integer |
| 27 |
*/ |
| 28 |
public static $lazyload_skipped_images = 0; |
| 29 |
|
| 30 |
/** |
| 31 |
* Class instance method. |
| 32 |
* |
| 33 |
* @codeCoverageIgnore |
| 34 |
* @static |
| 35 |
* @since 1.0.0 |
| 36 |
* @access public |
| 37 |
* @return Optml_Tag_Replacer |
| 38 |
*/ |
| 39 |
public static function instance() { |
| 40 |
if ( null === self::$instance ) { |
| 41 |
self::$instance = new self(); |
| 42 |
add_action( 'optml_replacer_setup', [ self::$instance, 'init' ] ); |
| 43 |
} |
| 44 |
|
| 45 |
return self::$instance; |
| 46 |
} |
| 47 |
|
| 48 |
/** |
| 49 |
* The initialize method. |
| 50 |
*/ |
| 51 |
public function init() { |
| 52 |
parent::init(); |
| 53 |
add_filter( 'optml_content_images_tags', [ $this, 'process_image_tags' ], 1, 2 ); |
| 54 |
|
| 55 |
if ( ! $this->settings->use_lazyload() ) { |
| 56 |
add_filter( 'optml_tag_replace', [ $this, 'regular_tag_replace' ], 1, 6 ); |
| 57 |
} |
| 58 |
add_filter( 'image_downsize', [ $this, 'filter_image_downsize' ], PHP_INT_MAX, 3 ); |
| 59 |
add_filter( 'wp_calculate_image_srcset', [ $this, 'filter_srcset_attr' ], PHP_INT_MAX - 1, 5 ); |
| 60 |
add_filter( 'wp_calculate_image_sizes', [ $this, 'filter_sizes_attr' ], 1, 2 ); |
| 61 |
add_filter( 'wp_image_src_get_dimensions', [ $this, 'filter_image_src_get_dimensions' ], 99, 4 ); |
| 62 |
if ( $this->settings->get( 'retina_images' ) === 'enabled' ) { |
| 63 |
add_filter( 'wp_get_attachment_image_attributes', [ $this, 'filter_attachment_image_attributes' ], 99, 3 ); |
| 64 |
} |
| 65 |
} |
| 66 |
|
| 67 |
/** |
| 68 |
* We have to short-circuit the logic that adds width and height to the img tag. |
| 69 |
* It compares the URL basename, and the `file` param for each image. |
| 70 |
* This happens for any image that gets its size set non-explicitly |
| 71 |
* e.g. an image block with its size set from the sidebar to `thumbnail`). |
| 72 |
* |
| 73 |
* Optimole has a single basename for all image resizes in its URL. |
| 74 |
* |
| 75 |
* @param mixed $dimensions The dimensions of the image. |
| 76 |
* @param mixed $image_src The source of the image. |
| 77 |
* @param mixed $image_meta The meta of the image. |
| 78 |
* @param mixed $attachment_id The ID of the attachment. |
| 79 |
*/ |
| 80 |
public function filter_image_src_get_dimensions( $dimensions, $image_src, $image_meta, $attachment_id ) { |
| 81 |
|
| 82 |
list($width, $height) = $this->parse_dimension_from_optimized_url( $image_src ); |
| 83 |
|
| 84 |
if ( false === $width || false === $height ) { |
| 85 |
return $dimensions; |
| 86 |
} |
| 87 |
$sizes = Optml_App_Replacer::image_sizes(); |
| 88 |
if ( OPTML_DEBUG ) { |
| 89 |
do_action( 'optml_log', 'filter_image_src_get_dimensions: ' . $image_src . ' ' . $width . ' ' . $height . ' ' . print_r( $image_meta, true ) ); |
| 90 |
} |
| 91 |
if ( $width === 'auto' && $height === 'auto' && isset( $image_meta['width'], $image_meta['height'] ) ) { |
| 92 |
return [ |
| 93 |
$image_meta['width'], |
| 94 |
$image_meta['height'], |
| 95 |
]; |
| 96 |
} |
| 97 |
// If this is an image size. Return its dimensions. |
| 98 |
foreach ( $sizes as $size => $args ) { |
| 99 |
if ( (int) $args['width'] !== (int) $width ) { |
| 100 |
continue; |
| 101 |
} |
| 102 |
|
| 103 |
if ( (int) $args['height'] !== (int) $height ) { |
| 104 |
continue; |
| 105 |
} |
| 106 |
|
| 107 |
return [ |
| 108 |
$args['width'], |
| 109 |
$args['height'], |
| 110 |
]; |
| 111 |
} |
| 112 |
|
| 113 |
// Fall-through with the original dimensions. |
| 114 |
return $dimensions; |
| 115 |
} |
| 116 |
/** |
| 117 |
* Filter the attachment image attributes to add the srcset attribute with retina support. |
| 118 |
* |
| 119 |
* This is covering the case where the image has no sizes. |
| 120 |
* |
| 121 |
* @param array $attr The attributes. |
| 122 |
* @param WP_Post $attachment The attachment. |
| 123 |
* @param string $size The size. |
| 124 |
*/ |
| 125 |
public function filter_attachment_image_attributes( $attr, $attachment, $size ) { |
| 126 |
if ( ! isset( $attr['srcset'] ) && isset( $attr['src'] ) && strpos( $attr['src'], '/w:' ) !== false ) { |
| 127 |
$attr['srcset'] = str_replace( '/w:', '/dpr:2/w:', $attr['src'] ) . ' 2x'; |
| 128 |
} |
| 129 |
return $attr; |
| 130 |
} |
| 131 |
|
| 132 |
|
| 133 |
/** |
| 134 |
* Replace in given content the given image tags with video tags is image is gif |
| 135 |
* |
| 136 |
* @param string $image_url Image url to process. |
| 137 |
* @param string $image_tag The tag to replace. |
| 138 |
* @param string $content The content to process. |
| 139 |
* |
| 140 |
* @return bool |
| 141 |
*/ |
| 142 |
public function img_to_video( $image_url, $image_tag, &$content ) { |
| 143 |
if ( $this->settings->get( 'img_to_video' ) === 'disabled' ) { |
| 144 |
return false; |
| 145 |
} |
| 146 |
|
| 147 |
if ( false === Optml_Filters::should_do_image( $image_tag, apply_filters( 'optml_gif_to_video_flags', [ 'lazyload' => true, 'placeholder' => true, 'original-src' => true ] ) ) ) { |
| 148 |
return false; |
| 149 |
} |
| 150 |
$link_mp4 = apply_filters( |
| 151 |
'optml_content_url', |
| 152 |
$image_url, |
| 153 |
[ |
| 154 |
'width' => 'auto', |
| 155 |
'height' => 'auto', |
| 156 |
'format' => 'mp4', |
| 157 |
] |
| 158 |
); |
| 159 |
|
| 160 |
$link_png = apply_filters( |
| 161 |
'optml_content_url', |
| 162 |
$image_url, |
| 163 |
[ |
| 164 |
'width' => 'auto', |
| 165 |
'height' => 'auto', |
| 166 |
'quality' => 'eco', |
| 167 |
] |
| 168 |
); |
| 169 |
|
| 170 |
$video_tag = $image_tag; |
| 171 |
|
| 172 |
$video_tag = str_replace( |
| 173 |
[ |
| 174 |
'src=', |
| 175 |
'<img', |
| 176 |
'/>', |
| 177 |
], |
| 178 |
[ |
| 179 |
'original-src=', |
| 180 |
'<video autoplay muted loop playsinline poster="' . $link_png . '"', |
| 181 |
'><source src="' . $link_mp4 . '" type="video/mp4"></video>', |
| 182 |
], |
| 183 |
$video_tag |
| 184 |
); |
| 185 |
$content = str_replace( $image_tag, $video_tag, $content ); |
| 186 |
return true; |
| 187 |
} |
| 188 |
|
| 189 |
/** |
| 190 |
* Method invoked by `optml_content_images_tags` filter. |
| 191 |
* |
| 192 |
* @param string $content The content to be processed. |
| 193 |
* @param array $images A list of images. |
| 194 |
* |
| 195 |
* @return mixed |
| 196 |
*/ |
| 197 |
public function process_image_tags( $content, $images = [] ) { |
| 198 |
|
| 199 |
$image_sizes = self::image_sizes(); |
| 200 |
$sizes2crop = self::size_to_crop(); |
| 201 |
if ( OPTML_DEBUG ) { |
| 202 |
do_action( 'optml_log', 'Images tags to process: ' . print_r( $images, true ) ); |
| 203 |
} |
| 204 |
foreach ( $images[0] as $index => $tag ) { |
| 205 |
$width = $height = false; |
| 206 |
$crop = null; |
| 207 |
$image_tag = $images['img_tag'][ $index ]; |
| 208 |
|
| 209 |
$is_slashed = strpos( $images['img_url'][ $index ], '\/' ) !== false; |
| 210 |
|
| 211 |
$src = $tmp = $is_slashed ? $this->strip_slashes( $images['img_url'][ $index ] ) : $images['img_url'][ $index ]; |
| 212 |
|
| 213 |
if ( strpos( $src, $this->upload_resource['content_path'] ) === 0 ) { |
| 214 |
$src = $tmp = untrailingslashit( $this->upload_resource['content_host'] ) . $src; |
| 215 |
|
| 216 |
$new_src = $is_slashed ? addcslashes( $src, '/' ) : $src; |
| 217 |
$image_tag = str_replace( |
| 218 |
[ |
| 219 |
'"' . $images['img_url'][ $index ], |
| 220 |
"'" . $images['img_url'][ $index ], |
| 221 |
], |
| 222 |
[ |
| 223 |
'"' . $new_src, |
| 224 |
"'" . $new_src, |
| 225 |
], |
| 226 |
$image_tag |
| 227 |
); |
| 228 |
$images['img_url'][ $index ] = $new_src; |
| 229 |
} |
| 230 |
if ( ( apply_filters( 'optml_ignore_image_link', false, $src ) || |
| 231 |
! $this->can_replace_tag( $images['img_url'][ $index ], $tag ) ) && ! Optml_Media_Offload::is_not_processed_image( $src ) |
| 232 |
) { |
| 233 |
continue; // @codeCoverageIgnore |
| 234 |
} |
| 235 |
$resize = apply_filters( 'optml_default_crop', [] ); |
| 236 |
|
| 237 |
list( $width, $height, $resize ) = self::parse_dimensions_from_tag( |
| 238 |
$images['img_tag'][ $index ], |
| 239 |
$image_sizes, |
| 240 |
[ |
| 241 |
'width' => $width, |
| 242 |
'height' => $height, |
| 243 |
'resize' => $resize, |
| 244 |
] |
| 245 |
); |
| 246 |
if ( false === $width && false === $height ) { |
| 247 |
list( $width, $height, $crop ) = $this->parse_dimensions_from_filename( $tmp ); |
| 248 |
} |
| 249 |
if ( empty( $resize ) && isset( $sizes2crop[ $width . $height ] ) ) { |
| 250 |
$resize = $this->to_optml_crop( $sizes2crop[ $width . $height ] ); |
| 251 |
} elseif ( $crop === true ) { |
| 252 |
$resize = $this->to_optml_crop( $crop ); |
| 253 |
} |
| 254 |
|
| 255 |
$optml_args = [ 'width' => $width, 'height' => $height, 'resize' => $resize ]; |
| 256 |
|
| 257 |
$is_gif = $this->is_valid_gif( $images['img_url'][ $index ] ); |
| 258 |
$should_lazy_gif = $is_gif ? $this->should_lazy_gif( $images['img_url'][ $index ], $optml_args ) : null; |
| 259 |
|
| 260 |
if ( $should_lazy_gif === true && $this->img_to_video( $images['img_url'][ $index ], $images['img_tag'][ $index ], $content ) ) { |
| 261 |
continue; |
| 262 |
} |
| 263 |
|
| 264 |
$tmp = $this->strip_image_size_from_url( $tmp ); |
| 265 |
|
| 266 |
$image_id = $this->get_id_by_url( $images['img_url'][ $index ] ); |
| 267 |
|
| 268 |
if ( Optml_Manager::instance()->page_profiler->get_crop_status( $image_id ) && empty( $optml_args['resize'] ) ) { |
| 269 |
$optml_args['resize'] = $this->to_optml_crop( true ); |
| 270 |
$optml_args['force'] = true; // here we need to force the url to be rebuild if the image is already using an Optimole URL. |
| 271 |
} |
| 272 |
|
| 273 |
$new_url = apply_filters( 'optml_content_url', $tmp, $optml_args ); |
| 274 |
|
| 275 |
$image_tag = str_replace( |
| 276 |
[ |
| 277 |
'width="' . $width . '"', |
| 278 |
'width=\"' . $width . '\"', |
| 279 |
'height="' . $height . '"', |
| 280 |
'height=\"' . $height . '\"', |
| 281 |
], |
| 282 |
[ |
| 283 |
'width="' . $optml_args['width'] . '"', |
| 284 |
'width=\"' . $optml_args['width'] . '\"', |
| 285 |
'height="' . $optml_args['height'] . '"', |
| 286 |
'height=\"' . $optml_args['height'] . '\"', |
| 287 |
], |
| 288 |
$image_tag |
| 289 |
); |
| 290 |
// If the image is in header or has a class excluded from lazyload or is an excluded gif, we need to do the regular replace. |
| 291 |
if ( $images['in_no_script'][ $index ] || $should_lazy_gif === false ) { |
| 292 |
|
| 293 |
$image_tag = $this->regular_tag_replace( $image_tag, $images['img_url'][ $index ], $new_url, $optml_args, $is_slashed, $tag ); |
| 294 |
} else { |
| 295 |
$image_tag = apply_filters( 'optml_tag_replace', $image_tag, $images['img_url'][ $index ], $new_url, $optml_args, $is_slashed, $tag ); |
| 296 |
} |
| 297 |
if ( strpos( $image_tag, 'data-opt-id=' ) === false ) { |
| 298 |
$image_tag = preg_replace( '/<img/im', '<img data-opt-id=' . $image_id . ' ', $image_tag ); |
| 299 |
} |
| 300 |
|
| 301 |
if ( $priority = Links::is_preloaded( $image_id ) ) { // phpcs:ignore Generic.CodeAnalysis.AssignmentInCondition.Found |
| 302 |
Links::preload_tag( $image_tag, $priority ); |
| 303 |
} |
| 304 |
|
| 305 |
if ( strpos( $image_tag, 'decoding=' ) === false ) { |
| 306 |
$image_tag = str_replace( 'data-opt-id=', 'decoding=async data-opt-id=', $image_tag ); |
| 307 |
} |
| 308 |
if ( strpos( $image_tag, 'width=' ) === false || strpos( $image_tag, 'height=' ) === false ) { |
| 309 |
$missing_dimensions = Optml_Manager::instance()->page_profiler->get_missing_dimensions( $image_id ); |
| 310 |
if ( ! empty( $missing_dimensions ) ) { |
| 311 |
if ( strpos( $image_tag, 'width=' ) === false ) { |
| 312 |
$image_tag = str_replace( 'data-opt-id=', 'width="' . $missing_dimensions['w'] . '" data-opt-id=', $image_tag ); |
| 313 |
} |
| 314 |
if ( strpos( $image_tag, 'height=' ) === false ) { |
| 315 |
$image_tag = str_replace( 'data-opt-id=', 'height="' . $missing_dimensions['h'] . '" data-opt-id=', $image_tag ); |
| 316 |
} |
| 317 |
} |
| 318 |
} |
| 319 |
$content = str_replace( $images['img_tag'][ $index ], $image_tag, $content ); |
| 320 |
} |
| 321 |
return $content; |
| 322 |
} |
| 323 |
/** |
| 324 |
* Check if we should lazyload a gif. |
| 325 |
* |
| 326 |
* @param string $url URL to check. |
| 327 |
* @param array $optml_args The width/height that we find for the image. |
| 328 |
* @return bool Should we lazyload the gif ? |
| 329 |
*/ |
| 330 |
public function should_lazy_gif( $url, $optml_args = [] ) { |
| 331 |
|
| 332 |
if ( strpos( $url, '/plugins/' ) !== false ) { |
| 333 |
return false; |
| 334 |
} |
| 335 |
if ( $this->is_valid_numeric( $optml_args['width'] ) && $this->is_valid_numeric( $optml_args['height'] ) && min( $optml_args['height'], $optml_args['width'] ) <= 20 ) { |
| 336 |
return false; |
| 337 |
} |
| 338 |
return true; |
| 339 |
} |
| 340 |
/** |
| 341 |
* Check replacement is allowed for this tag. |
| 342 |
* |
| 343 |
* @param string $url Url. |
| 344 |
* @param string $tag Html tag. |
| 345 |
* |
| 346 |
* @return bool We can replace? |
| 347 |
*/ |
| 348 |
public function can_replace_tag( $url, $tag = '' ) { |
| 349 |
foreach ( self::possible_tag_flags() as $banned_string ) { |
| 350 |
if ( strpos( $tag, $banned_string ) !== false ) { |
| 351 |
self::$ignored_url_map[ crc32( $url ) ] = true; |
| 352 |
return false; |
| 353 |
} |
| 354 |
} |
| 355 |
return true; |
| 356 |
} |
| 357 |
|
| 358 |
/** |
| 359 |
* Extract image dimensions from img tag. |
| 360 |
* |
| 361 |
* @param string $tag The HTML img tag. |
| 362 |
* @param array $image_sizes WordPress supported image sizes. |
| 363 |
* @param array $args Default args to use. |
| 364 |
* |
| 365 |
* @return array |
| 366 |
*/ |
| 367 |
private function parse_dimensions_from_tag( $tag, $image_sizes, $args = [] ) { |
| 368 |
if ( preg_match( '#width=["|\']?([\d%]+)["|\']?#i', $tag, $width_string ) ) { |
| 369 |
if ( ctype_digit( $width_string[1] ) === true ) { |
| 370 |
$args['width'] = $width_string[1]; |
| 371 |
} |
| 372 |
} |
| 373 |
if ( preg_match( '#height=["|\']?([\d%]+)["|\']?#i', $tag, $height_string ) ) { |
| 374 |
if ( ctype_digit( $height_string[1] ) === true ) { |
| 375 |
$args['height'] = $height_string[1]; |
| 376 |
} |
| 377 |
} |
| 378 |
if ( preg_match( '#class=["|\']?[^"\']*size-([^"\'\s]+)[^"\']*["|\']?#i', $tag, $size ) ) { |
| 379 |
$size = array_pop( $size ); |
| 380 |
|
| 381 |
if ( false === $args['width'] && false === $args['height'] && 'full' !== $size && array_key_exists( $size, $image_sizes ) ) { |
| 382 |
$args['width'] = (int) $image_sizes[ $size ]['width']; |
| 383 |
$args['height'] = (int) $image_sizes[ $size ]['height']; |
| 384 |
} |
| 385 |
if ( 'full' !== $size && array_key_exists( $size, $image_sizes ) ) { |
| 386 |
$args['resize'] = $this->to_optml_crop( $image_sizes[ $size ]['crop'] ); |
| 387 |
} |
| 388 |
} else { |
| 389 |
$args['resize'] = apply_filters( 'optml_parse_resize_from_tag', [], $tag ); |
| 390 |
} |
| 391 |
|
| 392 |
return [ $args['width'], $args['height'], $args['resize'] ]; |
| 393 |
} |
| 394 |
|
| 395 |
/** |
| 396 |
* Replaces the tags by default. |
| 397 |
* |
| 398 |
* @param string $new_tag The new tag. |
| 399 |
* @param string $original_url The original URL. |
| 400 |
* @param string $new_url The optimized URL. |
| 401 |
* @param array $optml_args Options passed for URL optimization. |
| 402 |
* @param bool $is_slashed Url needs to slashed. |
| 403 |
* @param string $full_tag Full tag, wrapper included. |
| 404 |
* |
| 405 |
* @return string |
| 406 |
*/ |
| 407 |
public function regular_tag_replace( $new_tag, $original_url, $new_url, $optml_args, $is_slashed = false, $full_tag = '' ) { |
| 408 |
if ( OPTML_DEBUG ) { |
| 409 |
do_action( 'optml_log', 'regular_tag_replace: ' . $original_url . ' ' . $new_url . $new_tag ); |
| 410 |
} |
| 411 |
$pattern = '/(?<!\/)' . preg_quote( $original_url, '/' ) . '/i'; |
| 412 |
$replace = $is_slashed ? addcslashes( $new_url, '/' ) : $new_url; |
| 413 |
|
| 414 |
// Get image ID for srcset enhancement |
| 415 |
$image_id = $this->get_id_by_url( $original_url ); |
| 416 |
|
| 417 |
// Add missing srcset attributes based on measurements from JavaScript module |
| 418 |
$missing_srcsets = Optml_Manager::instance()->page_profiler->get_missing_srcsets( $image_id ); |
| 419 |
if ( ! empty( $missing_srcsets ) ) { |
| 420 |
$new_tag = $this->add_missing_srcset_attributes( $new_tag, $missing_srcsets, $new_url, $is_slashed ); |
| 421 |
} |
| 422 |
|
| 423 |
if ( $this->settings->get( 'lazyload' ) === 'enabled' && $this->settings->get( 'native_lazyload' ) === 'enabled' |
| 424 |
&& apply_filters( 'optml_should_load_eager', '__return_true' ) && ! $this->is_valid_gif( $original_url ) ) { |
| 425 |
if ( strpos( $new_tag, 'loading=' ) === false ) { |
| 426 |
$new_tag = preg_replace( '/<img/im', $is_slashed ? '<img loading=\"eager\"' : '<img loading="eager"', $new_tag ); |
| 427 |
} else { |
| 428 |
$new_tag = $is_slashed ? str_replace( 'loading=\"lazy\"', 'loading=\"eager\"', $new_tag ) : str_replace( 'loading="lazy"', 'loading="eager"', $new_tag ); |
| 429 |
} |
| 430 |
} |
| 431 |
|
| 432 |
$no_viewport_data_available = true; |
| 433 |
|
| 434 |
if ( $this->settings->is_lazyload_type_viewport() ) { |
| 435 |
$image_id = $this->get_id_by_url( $original_url ); |
| 436 |
$is_lcp_image = Optml_Manager::instance()->page_profiler->is_lcp_image_in_all_viewports( $image_id ); |
| 437 |
$no_viewport_data_available = ! Optml_Manager::instance()->page_profiler->is_data_available(); |
| 438 |
if ( OPTML_DEBUG ) { |
| 439 |
do_action( 'optml_log', 'Adding fetchpriority image is LCP ' . $original_url . '|' . $image_id ); |
| 440 |
} |
| 441 |
|
| 442 |
if ( $is_lcp_image ) { |
| 443 |
$new_tag = preg_replace( '/<img/im', $is_slashed ? '<img fetchpriority=\"high\"' : '<img fetchpriority="high"', $new_tag ); |
| 444 |
} |
| 445 |
} |
| 446 |
|
| 447 |
// If the image is between the first images we add the fetchpriority attribute to improve the LCP. |
| 448 |
if ( |
| 449 |
$no_viewport_data_available && |
| 450 |
$this->settings->is_lazyload_type_fixed() && |
| 451 |
self::$lazyload_skipped_images < Optml_Lazyload_Replacer::get_skip_lazyload_limit() && |
| 452 |
false === strpos( $new_tag, 'fetchpriority=' ) |
| 453 |
) { |
| 454 |
$new_tag = preg_replace( '/<img/im', $is_slashed ? '<img fetchpriority=\"high\"' : '<img fetchpriority="high"', $new_tag ); |
| 455 |
} |
| 456 |
|
| 457 |
++self::$lazyload_skipped_images; |
| 458 |
return preg_replace( $pattern, $replace, $new_tag ); |
| 459 |
} |
| 460 |
|
| 461 |
/** |
| 462 |
* Add or enhance srcset attributes to an image tag based on measurements from JavaScript module. |
| 463 |
* |
| 464 |
* @param string $tag The image tag. |
| 465 |
* @param array<array{w: int, h: int, s: string, d: int, b: int}> $missing_srcsets Array of missing srcset data from JavaScript module. |
| 466 |
* @param string $new_url The new image URL. |
| 467 |
* @param bool $is_slashed Whether the URL needs to be slashed. |
| 468 |
* |
| 469 |
* @return string The modified image tag with enhanced srcset attributes. |
| 470 |
*/ |
| 471 |
public function add_missing_srcset_attributes( $tag, $missing_srcsets, $new_url, $is_slashed = false ) { |
| 472 |
if ( OPTML_DEBUG ) { |
| 473 |
do_action( 'optml_log', 'add_missing_srcset_attributes: ' . $new_url . ' ' . print_r( $missing_srcsets, true ) ); |
| 474 |
} |
| 475 |
if ( empty( $missing_srcsets ) || ! is_array( $missing_srcsets ) ) { |
| 476 |
return $tag; |
| 477 |
} |
| 478 |
|
| 479 |
// Check if srcset already exists |
| 480 |
$has_existing_srcset = strpos( $tag, 'srcset=' ) !== false; |
| 481 |
$has_existing_sizes = strpos( $tag, 'sizes=' ) !== false; |
| 482 |
|
| 483 |
// Build new srcset entries from missing srcset data |
| 484 |
$new_srcset_entries = []; |
| 485 |
$new_sizes_entries = []; |
| 486 |
|
| 487 |
foreach ( $missing_srcsets as $srcset_data ) { |
| 488 |
// Validate required fields |
| 489 |
if ( ! isset( $srcset_data['w'] ) || ! isset( $srcset_data['h'] ) || ! isset( $srcset_data['s'] ) ) { |
| 490 |
continue; |
| 491 |
} |
| 492 |
|
| 493 |
$width = (int) $srcset_data['w']; |
| 494 |
$height = (int) $srcset_data['h']; |
| 495 |
$descriptor = $srcset_data['s']; // e.g., "200w" |
| 496 |
$dpr = isset( $srcset_data['d'] ) ? (int) $srcset_data['d'] : 1; |
| 497 |
// If the retina images are not enabled, we don't need to add the retina srcset. |
| 498 |
if ( $dpr > 1 && $this->settings->get( 'retina_images' ) !== 'enabled' ) { |
| 499 |
continue; |
| 500 |
} |
| 501 |
$breakpoint = isset( $srcset_data['b'] ) ? (int) $srcset_data['b'] : 0; |
| 502 |
|
| 503 |
// Generate optimized URL for this size |
| 504 |
$optimized_url = $this->change_url_for_size( $new_url, $width, $height, $dpr ); |
| 505 |
|
| 506 |
if ( $optimized_url ) { |
| 507 |
$escaped_url = esc_url( $optimized_url ); |
| 508 |
if ( empty( $escaped_url ) ) { |
| 509 |
continue; |
| 510 |
} |
| 511 |
$new_srcset_entries[] = $escaped_url . ' ' . esc_attr( $descriptor ); |
| 512 |
|
| 513 |
// Add sizes attribute entry for responsive breakpoints |
| 514 |
if ( $breakpoint > 0 ) { |
| 515 |
$new_sizes_entries[] = '(max-width: ' . $breakpoint . 'px) ' . $width . 'px'; |
| 516 |
} |
| 517 |
} |
| 518 |
} |
| 519 |
|
| 520 |
if ( empty( $new_srcset_entries ) ) { |
| 521 |
return $tag; |
| 522 |
} |
| 523 |
|
| 524 |
if ( $has_existing_srcset ) { |
| 525 |
// Enhance existing srcset |
| 526 |
$tag = $this->enhance_existing_srcset( $tag, $new_srcset_entries, $is_slashed ); |
| 527 |
} else { |
| 528 |
// Add new srcset attribute |
| 529 |
$srcset_value = implode( ', ', $new_srcset_entries ); |
| 530 |
// Escape backreference metacharacters so this value can't be expanded by preg_replace() below. |
| 531 |
$srcset_value = addcslashes( $srcset_value, '\\$' ); |
| 532 |
$srcset_attr = $is_slashed ? 'srcset=\"' . addcslashes( $srcset_value, '"' ) . '\"' : 'srcset="' . $srcset_value . '"'; |
| 533 |
|
| 534 |
// Insert srcset attribute after the src attribute |
| 535 |
$tag = preg_replace( '/(src=["\'][^"\']*["\'])/i', '$1 ' . $srcset_attr, $tag ); |
| 536 |
} |
| 537 |
|
| 538 |
// Handle sizes attribute - skip if existing sizes contains calc() or complex formulas |
| 539 |
if ( ! empty( $new_sizes_entries ) ) { |
| 540 |
$should_skip_sizes = false; |
| 541 |
|
| 542 |
if ( $has_existing_sizes ) { |
| 543 |
// Check if existing sizes contains calc() or complex formulas |
| 544 |
if ( preg_match( '/sizes=["\']([^"\']*)["\']/i', $tag, $matches ) ) { |
| 545 |
$existing_sizes = $matches[1]; |
| 546 |
if ( $this->should_skip_sizes( $existing_sizes ) ) { |
| 547 |
$should_skip_sizes = true; |
| 548 |
if ( OPTML_DEBUG ) { |
| 549 |
do_action( 'optml_log', 'Skipping sizes enhancement due to complex formula: ' . $existing_sizes ); |
| 550 |
} |
| 551 |
} |
| 552 |
} |
| 553 |
} |
| 554 |
|
| 555 |
if ( ! $should_skip_sizes ) { |
| 556 |
// Filter sizes entries to ensure they're appropriate for the container |
| 557 |
$filtered_sizes_entries = $this->filter_sizes_entries_for_container( $new_sizes_entries, $tag ); |
| 558 |
|
| 559 |
if ( ! empty( $filtered_sizes_entries ) ) { |
| 560 |
if ( $has_existing_sizes ) { |
| 561 |
// Enhance existing sizes |
| 562 |
$tag = $this->enhance_existing_sizes( $tag, $filtered_sizes_entries, $is_slashed ); |
| 563 |
} else { |
| 564 |
// Add new sizes attribute |
| 565 |
$sizes_entries = array_unique( $filtered_sizes_entries ); |
| 566 |
// Sort ascending by breakpoint value (numeric) |
| 567 |
usort( |
| 568 |
$sizes_entries, |
| 569 |
function ( $a, $b ) { |
| 570 |
preg_match( '/max-width:\s*(\d+)/', $a, $ma ); |
| 571 |
preg_match( '/max-width:\s*(\d+)/', $b, $mb ); |
| 572 |
return ( $ma[1] ?? 0 ) - ( $mb[1] ?? 0 ); |
| 573 |
} |
| 574 |
); |
| 575 |
|
| 576 |
$sizes_value = implode( ', ', $sizes_entries ); |
| 577 |
// Escape backreference metacharacters before wrapping, see add_missing_srcset_attributes() above. |
| 578 |
$sizes_value = addcslashes( $sizes_value, '\\$' ); |
| 579 |
$sizes_attr = $is_slashed ? 'sizes=\"' . addcslashes( $sizes_value, '"' ) . '\"' : 'sizes="' . $sizes_value . '"'; |
| 580 |
|
| 581 |
// Insert sizes attribute after srcset |
| 582 |
$tag = preg_replace( '/(srcset=["\'][^"\']*["\'])/i', '$1 ' . $sizes_attr, $tag ); |
| 583 |
} |
| 584 |
} |
| 585 |
} else { |
| 586 |
// Log that sizes were skipped due to complex formulas |
| 587 |
if ( OPTML_DEBUG ) { |
| 588 |
do_action( 'optml_log', 'Skipped adding sizes due to complex formula detection' ); |
| 589 |
} |
| 590 |
} |
| 591 |
} |
| 592 |
|
| 593 |
if ( OPTML_DEBUG ) { |
| 594 |
$action = $has_existing_srcset ? 'Enhanced' : 'Added'; |
| 595 |
do_action( 'optml_log', $action . ' srcset for image: ' . $new_url . ' with ' . count( $new_srcset_entries ) . ' new entries' ); |
| 596 |
} |
| 597 |
|
| 598 |
return $tag; |
| 599 |
} |
| 600 |
|
| 601 |
/** |
| 602 |
* Enhance existing srcset attribute by adding new entries. |
| 603 |
* |
| 604 |
* @param string $tag The image tag. |
| 605 |
* @param array<int, string> $new_srcset_entries Array of new srcset entries to add. |
| 606 |
* @param bool $is_slashed Whether the URL needs to be slashed. |
| 607 |
* |
| 608 |
* @return string The modified image tag with enhanced srcset. |
| 609 |
*/ |
| 610 |
public function enhance_existing_srcset( $tag, $new_srcset_entries, $is_slashed = false ) { |
| 611 |
// Extract existing srcset value |
| 612 |
if ( preg_match( '/srcset=["\']([^"\']*)["\']/i', $tag, $matches ) ) { |
| 613 |
$existing_srcset = $matches[1]; |
| 614 |
$existing_entries = array_map( 'trim', explode( ',', $existing_srcset ) ); |
| 615 |
|
| 616 |
// Merge with new entries, avoiding duplicates |
| 617 |
$all_entries = array_merge( $existing_entries, $new_srcset_entries ); |
| 618 |
$all_entries = array_unique( $all_entries ); |
| 619 |
|
| 620 |
// Sort by descriptor (width) for better organization |
| 621 |
usort( |
| 622 |
$all_entries, |
| 623 |
function ( $a, $b ) { |
| 624 |
preg_match( '/(\d+)w/', $a, $matches_a ); |
| 625 |
preg_match( '/(\d+)w/', $b, $matches_b ); |
| 626 |
$width_a = isset( $matches_a[1] ) ? (int) $matches_a[1] : 0; |
| 627 |
$width_b = isset( $matches_b[1] ) ? (int) $matches_b[1] : 0; |
| 628 |
return $width_a - $width_b; |
| 629 |
} |
| 630 |
); |
| 631 |
|
| 632 |
$enhanced_srcset = implode( ', ', $all_entries ); |
| 633 |
// Escape backreference metacharacters so this value can't be expanded by preg_replace() below. |
| 634 |
$enhanced_srcset = addcslashes( $enhanced_srcset, '\\$' ); |
| 635 |
$srcset_attr = $is_slashed ? 'srcset=\"' . addcslashes( $enhanced_srcset, '"' ) . '\"' : 'srcset="' . $enhanced_srcset . '"'; |
| 636 |
|
| 637 |
// Replace existing srcset |
| 638 |
$tag = preg_replace( '/srcset=["\'][^"\']*["\']/i', $srcset_attr, $tag ); |
| 639 |
} |
| 640 |
|
| 641 |
return $tag; |
| 642 |
} |
| 643 |
|
| 644 |
/** |
| 645 |
* Enhance existing sizes attribute by adding new breakpoint entries. |
| 646 |
* |
| 647 |
* @param string $tag The image tag. |
| 648 |
* @param array<int, string> $new_sizes_entries Array of new sizes entries to add. |
| 649 |
* @param bool $is_slashed Whether the URL needs to be slashed. |
| 650 |
* |
| 651 |
* @return string The modified image tag with enhanced sizes. |
| 652 |
*/ |
| 653 |
public function enhance_existing_sizes( $tag, $new_sizes_entries, $is_slashed = false ) { |
| 654 |
// Extract existing sizes value |
| 655 |
if ( preg_match( '/sizes=["\']([^"\']*)["\']/i', $tag, $matches ) ) { |
| 656 |
$existing_sizes = $matches[1]; |
| 657 |
$existing_entries = array_map( 'trim', explode( ',', $existing_sizes ) ); |
| 658 |
|
| 659 |
// Merge with new entries, avoiding duplicates |
| 660 |
$all_entries = array_merge( $existing_entries, $new_sizes_entries ); |
| 661 |
$all_entries = array_unique( $all_entries ); |
| 662 |
|
| 663 |
// Sort by breakpoint (descending) |
| 664 |
usort( |
| 665 |
$all_entries, |
| 666 |
function ( $a, $b ) { |
| 667 |
preg_match( '/max-width:\s*(\d+)px/', $a, $matches_a ); |
| 668 |
preg_match( '/max-width:\s*(\d+)px/', $b, $matches_b ); |
| 669 |
$breakpoint_a = isset( $matches_a[1] ) ? (int) $matches_a[1] : 0; |
| 670 |
$breakpoint_b = isset( $matches_b[1] ) ? (int) $matches_b[1] : 0; |
| 671 |
return $breakpoint_b - $breakpoint_a; // Descending order |
| 672 |
} |
| 673 |
); |
| 674 |
|
| 675 |
$enhanced_sizes = implode( ', ', $all_entries ); |
| 676 |
// Escape backreference metacharacters before wrapping, see enhance_existing_srcset() above. |
| 677 |
$enhanced_sizes = addcslashes( $enhanced_sizes, '\\$' ); |
| 678 |
$sizes_attr = $is_slashed ? 'sizes=\"' . addcslashes( $enhanced_sizes, '"' ) . '\"' : 'sizes="' . $enhanced_sizes . '"'; |
| 679 |
|
| 680 |
// Replace existing sizes |
| 681 |
$tag = preg_replace( '/sizes=["\'][^"\']*["\']/i', $sizes_attr, $tag ); |
| 682 |
} |
| 683 |
|
| 684 |
return $tag; |
| 685 |
} |
| 686 |
|
| 687 |
/** |
| 688 |
* Check if sizes attribute contains complex formulas that should not be modified. |
| 689 |
* |
| 690 |
* @param string $sizes_value The sizes attribute value. |
| 691 |
* |
| 692 |
* @return bool True if contains complex formulas, false otherwise. |
| 693 |
*/ |
| 694 |
public function should_skip_sizes( $sizes_value ) { |
| 695 |
// Check for calc() functions |
| 696 |
if ( strpos( $sizes_value, 'calc(' ) !== false ) { |
| 697 |
return true; |
| 698 |
} |
| 699 |
|
| 700 |
// Check for complex mathematical operations |
| 701 |
if ( preg_match( '/\d+%\s*[+\-*\/]|[+\-*\/]\s*\d+%|\d+px\s*[+\-*\/]|[+\-*\/]\s*\d+px/', $sizes_value ) ) { |
| 702 |
return true; |
| 703 |
} |
| 704 |
|
| 705 |
// Check for viewport units with calculations |
| 706 |
if ( preg_match( '/\d+vw\s*[+\-*\/]|\d+vh\s*[+\-*\/]|\d+vmin\s*[+\-*\/]|\d+vmax\s*[+\-*\/]/', $sizes_value ) ) { |
| 707 |
return true; |
| 708 |
} |
| 709 |
|
| 710 |
// Check for complex CSS functions |
| 711 |
if ( preg_match( '/(min|max|clamp)\(/', $sizes_value ) ) { |
| 712 |
return true; |
| 713 |
} |
| 714 |
|
| 715 |
// Check for multiple percentage values with operations |
| 716 |
if ( preg_match( '/\d+%\s*[+\-*\/]\s*\d+%/', $sizes_value ) ) { |
| 717 |
return true; |
| 718 |
} |
| 719 |
|
| 720 |
return false; |
| 721 |
} |
| 722 |
|
| 723 |
/** |
| 724 |
* Filter sizes entries to ensure they're appropriate for the container size. |
| 725 |
* This prevents oversized images from being selected for small containers. |
| 726 |
* |
| 727 |
* @param array<int, string> $sizes_entries Array of sizes entries from JavaScript module. |
| 728 |
* @param string $tag The image tag to extract container dimensions from. |
| 729 |
* |
| 730 |
* @return array<int, string> Filtered sizes entries appropriate for the container. |
| 731 |
*/ |
| 732 |
public function filter_sizes_entries_for_container( $sizes_entries, $tag ) { |
| 733 |
if ( empty( $sizes_entries ) ) { |
| 734 |
return []; |
| 735 |
} |
| 736 |
|
| 737 |
// Extract container dimensions from the image tag |
| 738 |
$container_width = null; |
| 739 |
$container_height = null; |
| 740 |
|
| 741 |
// Try to get width and height from the tag |
| 742 |
if ( preg_match( '/width=["\']?(\d+)["\']?/i', $tag, $width_match ) ) { |
| 743 |
$container_width = (int) $width_match[1]; |
| 744 |
} |
| 745 |
if ( preg_match( '/height=["\']?(\d+)["\']?/i', $tag, $height_match ) ) { |
| 746 |
$container_height = (int) $height_match[1]; |
| 747 |
} |
| 748 |
|
| 749 |
// If we can't determine container size, return all entries (fallback) |
| 750 |
if ( ! $container_width || ! $container_height ) { |
| 751 |
if ( OPTML_DEBUG ) { |
| 752 |
do_action( 'optml_log', 'Cannot determine container size, using all sizes entries' ); |
| 753 |
} |
| 754 |
return $sizes_entries; |
| 755 |
} |
| 756 |
|
| 757 |
// Calculate maximum reasonable size for this container |
| 758 |
$max_reasonable_width = $container_width * 1.5; // Allow up to 1.5x the container size |
| 759 |
|
| 760 |
$filtered_entries = []; |
| 761 |
|
| 762 |
foreach ( $sizes_entries as $entry ) { |
| 763 |
// Extract image size from the entry (e.g., "(max-width: 768px) 400px" -> 400) |
| 764 |
if ( preg_match( '/\(max-width:\s*\d+px\)\s*(\d+)px/', $entry, $matches ) ) { |
| 765 |
$image_width = (int) $matches[1]; |
| 766 |
|
| 767 |
// Only include entries where the image size is reasonable for the container |
| 768 |
if ( $image_width <= $max_reasonable_width ) { |
| 769 |
$filtered_entries[] = $entry; |
| 770 |
} else { |
| 771 |
if ( OPTML_DEBUG ) { |
| 772 |
do_action( 'optml_log', "Filtered out oversized entry: {$entry} (container: {$container_width}px, image: {$image_width}px)" ); |
| 773 |
} |
| 774 |
} |
| 775 |
} else { |
| 776 |
// If we can't parse the entry, include it (better safe than sorry) |
| 777 |
$filtered_entries[] = $entry; |
| 778 |
} |
| 779 |
} |
| 780 |
|
| 781 |
if ( OPTML_DEBUG ) { |
| 782 |
do_action( 'optml_log', "Filtered sizes entries for container {$container_width}x{$container_height}: " . count( $filtered_entries ) . ' of ' . count( $sizes_entries ) . ' entries' ); |
| 783 |
} |
| 784 |
|
| 785 |
return $filtered_entries; |
| 786 |
} |
| 787 |
|
| 788 |
/** |
| 789 |
* Generate optimized URL for a specific size and DPR. |
| 790 |
* |
| 791 |
* @param string $original_url The original image URL. |
| 792 |
* @param int $width The target width. |
| 793 |
* @param int $height The target height. |
| 794 |
* @param int $dpr The device pixel ratio. |
| 795 |
* |
| 796 |
* @return string The optimized URL or false on failure. |
| 797 |
*/ |
| 798 |
public function change_url_for_size( $original_url, $width, $height, $dpr = 1 ) { |
| 799 |
// Assume w and h are always present - just replace them |
| 800 |
// Updated regex to match w:auto, w:123, h:auto, h:456, etc. |
| 801 |
$replacements = [ |
| 802 |
'/w:(?:auto|\d+)/' => 'w:' . $width, |
| 803 |
'/h:(?:auto|\d+)/' => 'h:' . $height, |
| 804 |
]; |
| 805 |
|
| 806 |
// Handle DPR - replace if exists, add after w: if missing |
| 807 |
if ( $dpr > 1 ) { |
| 808 |
if ( strpos( $original_url, 'dpr:' ) !== false ) { |
| 809 |
$replacements['/dpr:\d+/'] = 'dpr:' . $dpr; |
| 810 |
} else { |
| 811 |
// Add DPR after width parameter - use the same pattern as width replacement |
| 812 |
$replacements['/(w:(?:auto|\d+))/'] = '$1/dpr:' . $dpr; |
| 813 |
} |
| 814 |
} else { |
| 815 |
$replacements['/dpr:\d+\//'] = ''; |
| 816 |
} |
| 817 |
|
| 818 |
return preg_replace( array_keys( $replacements ), array_values( $replacements ), $original_url ); |
| 819 |
} |
| 820 |
|
| 821 |
/** |
| 822 |
* Replace image URLs in the srcset attributes and in case there is a resize in action, also replace the sizes. |
| 823 |
* |
| 824 |
* @param array<int, array{url: string, descriptor: string, value: int}>|mixed $sources Array of image sources. |
| 825 |
* @param array{0: int, 1: int}|int[] $size_array Array of width and height values in pixels (in that order). |
| 826 |
* @param string $image_src The 'src' of the image. |
| 827 |
* @param array<string, mixed> $image_meta The image meta data as returned by 'wp_get_attachment_metadata()'. |
| 828 |
* @param int $attachment_id Image attachment ID or 0. |
| 829 |
* |
| 830 |
* @return array|mixed |
| 831 |
*/ |
| 832 |
public function filter_srcset_attr( $sources = [], $size_array = [], $image_src = '', $image_meta = [], $attachment_id = 0 ) { |
| 833 |
if ( ! is_array( $sources ) ) { |
| 834 |
return $sources; |
| 835 |
} |
| 836 |
if ( Optml_Media_Offload::is_uploaded_image( $image_src ) ) { |
| 837 |
return $sources; |
| 838 |
} |
| 839 |
$original_url = null; |
| 840 |
$cropping = null; |
| 841 |
if ( count( $size_array ) === 2 ) { |
| 842 |
$sizes = self::size_to_crop(); |
| 843 |
$cropping = isset( $sizes[ $size_array[0] . $size_array[1] ] ) ? $this->to_optml_crop( $sizes[ $size_array[0] . $size_array[1] ] ) : null; |
| 844 |
} |
| 845 |
if ( OPTML_DEBUG ) { |
| 846 |
do_action( 'optml_log', 'sources: ' . print_r( $sources, true ) . ' size_array: ' . print_r( $size_array, true ) ); |
| 847 |
} |
| 848 |
$biggest_size = []; |
| 849 |
$max_width = 0; |
| 850 |
foreach ( $sources as $i => $source ) { |
| 851 |
$url = $source['url']; |
| 852 |
if ( Optml_Media_Offload::is_uploaded_image( $url ) ) { |
| 853 |
continue; |
| 854 |
} |
| 855 |
list( $width, $height, $file_crop ) = $this->parse_dimensions_from_filename( $url ); |
| 856 |
|
| 857 |
if ( empty( $width ) ) { |
| 858 |
$width = $image_meta['width']; |
| 859 |
} |
| 860 |
|
| 861 |
if ( empty( $height ) ) { |
| 862 |
$height = $image_meta['height']; |
| 863 |
} |
| 864 |
|
| 865 |
if ( $original_url === null ) { |
| 866 |
if ( ! empty( $attachment_id ) ) { |
| 867 |
$original_url = wp_get_attachment_url( $attachment_id ); |
| 868 |
} else { |
| 869 |
$original_url = $this->strip_image_size_from_url( $source['url'] ); |
| 870 |
} |
| 871 |
} |
| 872 |
$args = []; |
| 873 |
if ( 'w' === $source['descriptor'] ) { |
| 874 |
if ( $height && ( $source['value'] === $width ) ) { |
| 875 |
$args['width'] = $width; |
| 876 |
$args['height'] = $height; |
| 877 |
} else { |
| 878 |
$args['width'] = $source['value']; |
| 879 |
} |
| 880 |
} |
| 881 |
if ( $cropping !== null ) { |
| 882 |
$args['resize'] = $cropping; |
| 883 |
} else { |
| 884 |
$args['resize'] = $this->to_optml_crop( $file_crop ); |
| 885 |
} |
| 886 |
if ( $i > $max_width ) { |
| 887 |
$max_width = $i; |
| 888 |
$biggest_size = [ $args, $original_url ]; |
| 889 |
} |
| 890 |
$sources[ $i ]['url'] = apply_filters( 'optml_content_url', $original_url, $args ); |
| 891 |
|
| 892 |
} |
| 893 |
|
| 894 |
if ( $this->settings->get( 'retina_images' ) === 'enabled' && ! empty( $biggest_size ) ) { |
| 895 |
$sources[ $max_width * 2 ]['url'] = apply_filters( 'optml_content_url', $biggest_size[1], array_merge( $biggest_size[0], [ 'dpr' => 2 ] ) ); |
| 896 |
$sources[ $max_width * 2 ]['value'] = 2; |
| 897 |
$sources[ $max_width * 2 ]['descriptor'] = 'x'; |
| 898 |
} |
| 899 |
return $sources; |
| 900 |
} |
| 901 |
|
| 902 |
/** |
| 903 |
* Filters sizes attribute of the images. |
| 904 |
* |
| 905 |
* @param string $sizes An array of media query breakpoints. |
| 906 |
* @param string|int[] $size Width and height of the image. |
| 907 |
* |
| 908 |
* @return string An array of media query breakpoints. |
| 909 |
*/ |
| 910 |
public function filter_sizes_attr( $sizes, $size ) { |
| 911 |
|
| 912 |
if ( ! doing_filter( 'the_content' ) ) { |
| 913 |
return $sizes; |
| 914 |
} |
| 915 |
|
| 916 |
$content_width = false; |
| 917 |
if ( isset( $GLOBALS['content_width'] ) ) { |
| 918 |
$content_width = $GLOBALS['content_width']; |
| 919 |
} |
| 920 |
|
| 921 |
if ( ! $content_width ) { |
| 922 |
$content_width = 1000; |
| 923 |
} |
| 924 |
if ( is_array( $size ) && $size[0] < $content_width ) { |
| 925 |
return $sizes; |
| 926 |
} |
| 927 |
|
| 928 |
return sprintf( '(max-width: %1$dpx) 100vw, %1$dpx', $content_width ); |
| 929 |
} |
| 930 |
|
| 931 |
/** |
| 932 |
* This filter will replace all the images retrieved via "wp_get_image" type of functions. |
| 933 |
* |
| 934 |
* @param array $image The filtered value. |
| 935 |
* @param int $attachment_id The related attachment id. |
| 936 |
* @param array|string $size This could be the name of the thumbnail size or an array of custom dimensions. |
| 937 |
* |
| 938 |
* @return array |
| 939 |
*/ |
| 940 |
public function filter_image_downsize( $image, $attachment_id, $size ) { |
| 941 |
|
| 942 |
if ( defined( 'REST_REQUEST' ) && REST_REQUEST ) { |
| 943 |
return $image; |
| 944 |
} |
| 945 |
$image_url = wp_get_attachment_url( $attachment_id ); |
| 946 |
if ( Optml_Media_Offload::is_uploaded_image( $image_url ) ) { |
| 947 |
return $image; |
| 948 |
} |
| 949 |
if ( $image_url === false ) { |
| 950 |
return $image; |
| 951 |
} |
| 952 |
|
| 953 |
$image_meta = wp_get_attachment_metadata( $attachment_id ); |
| 954 |
$sizes = $this->size_to_dimension( $size, $image_meta, $attachment_id ); |
| 955 |
|
| 956 |
$image_url = $this->strip_image_size_from_url( $image_url ); |
| 957 |
|
| 958 |
$new_url = apply_filters( 'optml_content_url', $image_url, $sizes ); |
| 959 |
|
| 960 |
if ( $new_url === $image_url ) { |
| 961 |
return $image; |
| 962 |
} |
| 963 |
|
| 964 |
return [ |
| 965 |
$new_url, |
| 966 |
$sizes['width'], |
| 967 |
$sizes['height'], |
| 968 |
$size === 'full', |
| 969 |
]; |
| 970 |
} |
| 971 |
|
| 972 |
/** |
| 973 |
* Throw error on object clone |
| 974 |
* |
| 975 |
* The whole idea of the singleton design pattern is that there is a single |
| 976 |
* object therefore, we don't want the object to be cloned. |
| 977 |
* |
| 978 |
* @codeCoverageIgnore |
| 979 |
* @access public |
| 980 |
* @since 1.0.0 |
| 981 |
* @return void |
| 982 |
*/ |
| 983 |
public function __clone() { |
| 984 |
// Cloning instances of the class is forbidden. |
| 985 |
_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin’ huh?', 'optimole-wp' ), '1.0.0' ); |
| 986 |
} |
| 987 |
|
| 988 |
/** |
| 989 |
* Disable unserializing of the class |
| 990 |
* |
| 991 |
* @codeCoverageIgnore |
| 992 |
* @access public |
| 993 |
* @since 1.0.0 |
| 994 |
* @return void |
| 995 |
*/ |
| 996 |
public function __wakeup() { |
| 997 |
// Unserializing instances of the class is forbidden. |
| 998 |
_doing_it_wrong( __FUNCTION__, esc_html__( 'Cheatin’ huh?', 'optimole-wp' ), '1.0.0' ); |
| 999 |
} |
| 1000 |
} |
| 1001 |
|
