| 1 |
<?php |
| 2 |
/** |
| 3 |
* Template functions |
| 4 |
* |
| 5 |
* @since 1.0 |
| 6 |
*/ |
| 7 |
|
| 8 |
if ( ! defined( 'ABSPATH' ) ) exit; // Exit if accessed directly. |
| 9 |
|
| 10 |
function easy_image_gallery_db_version(){ |
| 11 |
$old_meta_structure = get_post_meta(get_the_ID(), '_easy_image_gallery', true); |
| 12 |
$new_meta_structure = get_post_meta(get_the_ID(), '_easy_image_gallery_v2', true); |
| 13 |
|
| 14 |
if (isset($new_meta_structure) && $new_meta_structure != null) { |
| 15 |
return "new"; |
| 16 |
}elseif( isset($old_meta_structure) && $old_meta_structure != null ) { |
| 17 |
return "old"; |
| 18 |
} |
| 19 |
|
| 20 |
return; |
| 21 |
} |
| 22 |
|
| 23 |
/** |
| 24 |
* Check the POST META |
| 25 |
*/ |
| 26 |
function easy_image_gallery_get_post_meta(){ |
| 27 |
$db_version = easy_image_gallery_db_version(); |
| 28 |
if ( $db_version == "new" ) { |
| 29 |
$gallery_ids = get_post_meta(get_the_ID(), '_easy_image_gallery_v2', true); |
| 30 |
return $gallery_ids; |
| 31 |
} elseif ( $db_version == "old" ) { |
| 32 |
$get_gallery_attachments = get_post_meta(get_the_ID(), '_easy_image_gallery', true); |
| 33 |
$get_gallery_old_data = explode(",", $get_gallery_attachments); |
| 34 |
|
| 35 |
$get_open_images = get_post_meta(get_the_ID(), '_easy_image_gallery_link_images'); |
| 36 |
if ( isset($get_open_images) && !empty($get_open_images) ){ |
| 37 |
$get_open_images = $get_open_images; |
| 38 |
}else{ |
| 39 |
$get_open_images = null; |
| 40 |
} |
| 41 |
|
| 42 |
$gallery_ids = array(array( |
| 43 |
"SHORTCODE" => wp_rand(100, 999), |
| 44 |
"DATA" => $get_gallery_old_data, |
| 45 |
"OPEN_IMAGES" => $get_open_images[0], |
| 46 |
)); |
| 47 |
|
| 48 |
return $gallery_ids; |
| 49 |
} |
| 50 |
|
| 51 |
return; |
| 52 |
} |
| 53 |
/** |
| 54 |
* Is gallery |
| 55 |
* |
| 56 |
* @since 1.0 |
| 57 |
* @return boolean |
| 58 |
*/ |
| 59 |
function easy_image_gallery_is_gallery() { |
| 60 |
$gallery_ids = easy_image_gallery_get_post_meta(); |
| 61 |
// Checking if we have EIG (Easy Image Gallery) Gutenberg Blocks in the post content |
| 62 |
$gutenberg_galleries = easy_image_gallery_if_gutenberg_block(); |
| 63 |
|
| 64 |
if ( ! empty( $gallery_ids ) || ! empty( $gutenberg_galleries ) ) { |
| 65 |
return true; |
| 66 |
} |
| 67 |
|
| 68 |
return false; |
| 69 |
} |
| 70 |
|
| 71 |
/** |
| 72 |
* Get page images ids |
| 73 |
* |
| 74 |
* @since 1.3 |
| 75 |
* @return array |
| 76 |
*/ |
| 77 |
function easy_image_gallery_get_image_ids( $post_id = null, $all_galleries_images = true, $gallery_id = null ) { |
| 78 |
global $post; |
| 79 |
|
| 80 |
if ( $post_id == null ) { |
| 81 |
$post_id = $post->ID; |
| 82 |
} |
| 83 |
|
| 84 |
if( ! isset( $post_id ) || $post_id == null ) return; |
| 85 |
|
| 86 |
$db_version = easy_image_gallery_db_version(); |
| 87 |
if ( $db_version == "new" ) { |
| 88 |
|
| 89 |
$new_db_structure = get_post_meta(get_the_ID(), '_easy_image_gallery_v2', true); |
| 90 |
if ( $all_galleries_images == true ){ |
| 91 |
|
| 92 |
$images_ids = array(); |
| 93 |
if( isset( $new_db_structure ) && !empty( $new_db_structure ) ){ |
| 94 |
foreach( $new_db_structure as $gallery ){ |
| 95 |
foreach( $gallery['DATA'] as $image ){ |
| 96 |
$images_ids[] = $image; |
| 97 |
} |
| 98 |
} |
| 99 |
} |
| 100 |
|
| 101 |
return $images_ids; |
| 102 |
|
| 103 |
}elseif( $all_galleries_images == false ){ |
| 104 |
|
| 105 |
if ( isset( $gallery_id ) && !empty( $gallery_id ) ){ |
| 106 |
|
| 107 |
if( isset( $new_db_structure ) && !empty( $new_db_structure ) ){ |
| 108 |
foreach( $new_db_structure as $gallery ){ |
| 109 |
if ( (string) easy_image_gallery_sanitize_gallery_id( $gallery['SHORTCODE'] ) === (string) easy_image_gallery_sanitize_gallery_id( $gallery_id ) ) { |
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return $gallery['DATA']; |
| 111 |
} |
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} |
| 113 |
} |
| 114 |
|
| 115 |
} |
| 116 |
|
| 117 |
} |
| 118 |
|
| 119 |
}elseif ( $db_version == "old" ) { |
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$old_db_structure = get_post_meta(get_the_ID(), '_easy_image_gallery', true); |
| 121 |
$attachment_ids = explode( ',', $old_db_structure ); |
| 122 |
|
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return array_filter( $attachment_ids ); |
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} |
| 125 |
|
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return; |
| 127 |
} |
| 128 |
|
| 129 |
/** |
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* Check the current post for the existence of a short code |
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* |
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* @since 1.0 |
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* @return boolean |
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*/ |
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function easy_image_gallery_has_shortcode( $shortcode = '' ) { |
| 136 |
global $post; |
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|
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// false because we have to search through the post content first |
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$found = false; |
| 140 |
|
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// if no short code was provided, return false |
| 142 |
if ( !$shortcode ) { |
| 143 |
return $found; |
| 144 |
} |
| 145 |
|
| 146 |
if ( is_object( $post ) && stripos( $post->post_content, '[' . $shortcode ) !== false ) { |
| 147 |
// we have found the short code |
| 148 |
$found = true; |
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} |
| 150 |
|
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// return our final results |
| 152 |
return $found; |
| 153 |
} |
| 154 |
/** |
| 155 |
* Check the current post for the existence of a gutenberg block |
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* |
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* @since 1.0 |
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* @return boolean |
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*/ |
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function easy_image_gallery_has_block( $block = '' ) { |
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global $post; |
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|
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// false because we have to search through the post content first |
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$found = false; |
| 165 |
|
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// if no short code was provided, return false |
| 167 |
if ( !$block ) { |
| 168 |
return $found; |
| 169 |
} |
| 170 |
if ( is_object( $post ) && stripos( $post->post_content, '<ul class="' . $block ) !== false ) { |
| 171 |
// we have found the short code |
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$found = true; |
| 173 |
} |
| 174 |
|
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// return our final results |
| 176 |
return $found; |
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} |
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|
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|
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/** |
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* Setup Lightbox array |
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* |
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* @since 1.0 |
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* @return array |
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*/ |
| 186 |
function easy_image_gallery_lightbox() { |
| 187 |
|
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$lightboxes = array( |
| 189 |
'fancybox' => __( 'fancyBox', 'easy-image-gallery' ), |
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'prettyphoto' => __( 'prettyPhoto', 'easy-image-gallery' ), |
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'luminous' => __( 'Luminous', 'easy-image-gallery' ), |
| 192 |
); |
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|
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return apply_filters( 'easy_image_gallery_lightbox', $lightboxes ); |
| 195 |
|
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} |
| 197 |
|
| 198 |
/** |
| 199 |
* Get lightbox from settings |
| 200 |
* |
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* @since 1.0 |
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* @return string |
| 203 |
*/ |
| 204 |
|
| 205 |
if ( !function_exists( 'easy_image_gallery_get_lightbox' ) ) : |
| 206 |
function easy_image_gallery_get_lightbox() { |
| 207 |
|
| 208 |
$settings = (array) get_option( 'easy-image-gallery' ); |
| 209 |
|
| 210 |
// set fancybox as default for when the settings page hasn't been saved |
| 211 |
$lightbox = isset( $settings['lightbox'] ) ? esc_attr( $settings['lightbox'] ) : 'prettyphoto'; |
| 212 |
|
| 213 |
return $lightbox; |
| 214 |
|
| 215 |
} |
| 216 |
endif; |
| 217 |
|
| 218 |
|
| 219 |
/** |
| 220 |
* Sanitize a gallery/shortcode ID for safe use in HTML attributes and selectors. |
| 221 |
* |
| 222 |
* Gallery IDs are numeric (see wp_rand-generated SHORTCODE values in the metabox). |
| 223 |
* |
| 224 |
* @since 1.5.5 |
| 225 |
* @param mixed $gallery_id Gallery identifier. |
| 226 |
* @return string Digits-only ID, or empty string when invalid. |
| 227 |
*/ |
| 228 |
function easy_image_gallery_sanitize_gallery_id( $gallery_id ) { |
| 229 |
if ( null === $gallery_id || '' === $gallery_id || 'old_db' === $gallery_id ) { |
| 230 |
return ''; |
| 231 |
} |
| 232 |
|
| 233 |
$sanitized_gallery_id = preg_replace( '/[^0-9]/', '', (string) $gallery_id ); |
| 234 |
|
| 235 |
if ( '' === $sanitized_gallery_id ) { |
| 236 |
return ''; |
| 237 |
} |
| 238 |
|
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return $sanitized_gallery_id; |
| 240 |
} |
| 241 |
|
| 242 |
/** |
| 243 |
* Returns the correct rel attribute for the anchor links |
| 244 |
* |
| 245 |
* @since 1.0 |
| 246 |
* @return string |
| 247 |
*/ |
| 248 |
function easy_image_gallery_lightbox_rel( $gallery_id = null ) { |
| 249 |
|
| 250 |
$gallery_id = easy_image_gallery_sanitize_gallery_id( $gallery_id ); |
| 251 |
$lightbox = easy_image_gallery_get_lightbox(); |
| 252 |
|
| 253 |
switch ( $lightbox ) { |
| 254 |
|
| 255 |
case 'prettyphoto': |
| 256 |
|
| 257 |
$rel = 'rel="' . esc_attr( 'prettyPhoto[group-' . $gallery_id . ']' ) . '"'; |
| 258 |
|
| 259 |
break; |
| 260 |
|
| 261 |
case 'fancybox': |
| 262 |
|
| 263 |
$rel = 'data-fancybox="' . esc_attr( 'gallery' . $gallery_id ) . '"'; |
| 264 |
|
| 265 |
break; |
| 266 |
|
| 267 |
case 'luminous': |
| 268 |
|
| 269 |
$rel = 'rel="' . esc_attr( 'luminous[group-' . $gallery_id . ']' ) . '"'; |
| 270 |
|
| 271 |
break; |
| 272 |
|
| 273 |
default: |
| 274 |
|
| 275 |
$rel = 'rel="' . esc_attr( 'prettyPhoto[group-' . $gallery_id . ']' ) . '"'; |
| 276 |
} |
| 277 |
|
| 278 |
return $rel; |
| 279 |
} |
| 280 |
|
| 281 |
/** |
| 282 |
* Get list of post types for populating the checkboxes on the admin page |
| 283 |
* |
| 284 |
* @since 1.0 |
| 285 |
* @return array |
| 286 |
*/ |
| 287 |
function easy_image_gallery_get_post_types() { |
| 288 |
|
| 289 |
$args = array( |
| 290 |
'public' => true |
| 291 |
); |
| 292 |
|
| 293 |
$post_types = array_map( 'ucfirst', get_post_types( $args ) ); |
| 294 |
|
| 295 |
// remove attachment |
| 296 |
unset( $post_types[ 'attachment' ] ); |
| 297 |
|
| 298 |
return apply_filters( 'easy_image_gallery_get_post_types', $post_types ); |
| 299 |
|
| 300 |
} |
| 301 |
|
| 302 |
/** |
| 303 |
* Retrieve the allowed post types from the option row |
| 304 |
* Defaults to post and page when the settings have not been saved |
| 305 |
* |
| 306 |
* @return array |
| 307 |
* @since 1.0 |
| 308 |
*/ |
| 309 |
function easy_image_gallery_allowed_post_types() { |
| 310 |
|
| 311 |
$defaults['post_types']['post'] = 'on'; |
| 312 |
$defaults['post_types']['page'] = 'on'; |
| 313 |
|
| 314 |
// get the allowed post type from the DB |
| 315 |
$settings = ( array ) get_option( 'easy-image-gallery', $defaults ); |
| 316 |
$post_types = isset( $settings['post_types'] ) ? $settings['post_types'] : ''; |
| 317 |
|
| 318 |
// post types don't exist, bail |
| 319 |
if ( ! $post_types ) |
| 320 |
return; |
| 321 |
|
| 322 |
return $post_types; |
| 323 |
|
| 324 |
} |
| 325 |
|
| 326 |
|
| 327 |
/** |
| 328 |
* Is the currently viewed post type allowed? |
| 329 |
* For use on the front-end when loading scripts etc |
| 330 |
* |
| 331 |
* @since 1.0 |
| 332 |
* @return boolean |
| 333 |
*/ |
| 334 |
function easy_image_gallery_allowed_post_type() { |
| 335 |
|
| 336 |
// post and page defaults |
| 337 |
$defaults['post_types']['post'] = 'on'; |
| 338 |
$defaults['post_types']['page'] = 'on'; |
| 339 |
|
| 340 |
// get currently viewed post type |
| 341 |
$post_type = ( string ) get_post_type(); |
| 342 |
|
| 343 |
//echo $post_type; exit; // download |
| 344 |
|
| 345 |
// get the allowed post type from the DB |
| 346 |
$settings = ( array ) get_option( 'easy-image-gallery', $defaults ); |
| 347 |
$post_types = isset( $settings['post_types'] ) ? $settings['post_types'] : ''; |
| 348 |
|
| 349 |
// post types don't exist, bail |
| 350 |
if ( ! $post_types ) |
| 351 |
return; |
| 352 |
|
| 353 |
// check the two against each other |
| 354 |
if ( array_key_exists( $post_type, $post_types ) ) |
| 355 |
return true; |
| 356 |
} |
| 357 |
|
| 358 |
|
| 359 |
/** |
| 360 |
* Retrieve attachment IDs |
| 361 |
* |
| 362 |
* @since 1.0 |
| 363 |
* @return string |
| 364 |
*/ |
| 365 |
function easy_image_gallery_get_galleries() { |
| 366 |
global $post; |
| 367 |
|
| 368 |
if( !isset( $post->ID) ){ |
| 369 |
return; |
| 370 |
} |
| 371 |
|
| 372 |
$gallery_ids = easy_image_gallery_get_post_meta(); |
| 373 |
|
| 374 |
return $gallery_ids; |
| 375 |
} |
| 376 |
|
| 377 |
|
| 378 |
/** |
| 379 |
* Shortcode |
| 380 |
* |
| 381 |
* @since 1.0 |
| 382 |
*/ |
| 383 |
|
| 384 |
function easy_image_gallery_shortcode( $atts ) { |
| 385 |
|
| 386 |
// return early if the post type is not allowed to have a gallery |
| 387 |
if ( ! easy_image_gallery_allowed_post_type() ) { |
| 388 |
return ''; |
| 389 |
} |
| 390 |
|
| 391 |
$atts = shortcode_atts( |
| 392 |
array( |
| 393 |
'gallery' => '', |
| 394 |
), |
| 395 |
$atts, |
| 396 |
'easy_image_gallery' |
| 397 |
); |
| 398 |
|
| 399 |
if ( ! empty( $atts['gallery'] ) ) { |
| 400 |
$gallery_id = easy_image_gallery_sanitize_gallery_id( $atts['gallery'] ); |
| 401 |
if ( '' !== $gallery_id ) { |
| 402 |
return easy_image_gallery( $gallery_id ); |
| 403 |
} |
| 404 |
return ''; |
| 405 |
} |
| 406 |
|
| 407 |
return easy_image_gallery( 'old_db' ); |
| 408 |
} |
| 409 |
add_shortcode( 'easy_image_gallery', 'easy_image_gallery_shortcode' ); |
| 410 |
|
| 411 |
|
| 412 |
/** |
| 413 |
* Count number of images in array |
| 414 |
* |
| 415 |
* @since 1.0 |
| 416 |
* @return integer |
| 417 |
*/ |
| 418 |
function easy_image_gallery_count_images( $gallery_shortcode ) { |
| 419 |
|
| 420 |
$galleries = easy_image_gallery_get_post_meta(); |
| 421 |
|
| 422 |
if ( isset($galleries) && !empty($galleries) ) { |
| 423 |
foreach ( $galleries as $gallery ){ |
| 424 |
if ( (string) easy_image_gallery_sanitize_gallery_id( $gallery['SHORTCODE'] ) === (string) easy_image_gallery_sanitize_gallery_id( $gallery_shortcode ) ) { |
| 425 |
$number = count($gallery['DATA']); |
| 426 |
return $number; |
| 427 |
} |
| 428 |
} |
| 429 |
} |
| 430 |
|
| 431 |
return; |
| 432 |
} |
| 433 |
|
| 434 |
|
| 435 |
/** |
| 436 |
* Output gallery |
| 437 |
* |
| 438 |
* @since 1.0 |
| 439 |
*/ |
| 440 |
function easy_image_gallery( $gallery_id = 'old_db' ) { |
| 441 |
|
| 442 |
$galleries = easy_image_gallery_get_galleries(); |
| 443 |
global $post; |
| 444 |
|
| 445 |
if ( isset($galleries) && !empty($galleries) ){ |
| 446 |
ob_start(); |
| 447 |
foreach ($galleries as $gallery){ |
| 448 |
|
| 449 |
$current_gallery_id = $gallery_id; |
| 450 |
|
| 451 |
if ( 'old_db' === $current_gallery_id ) { |
| 452 |
$candidate = easy_image_gallery_sanitize_gallery_id( $gallery['SHORTCODE'] ); |
| 453 |
if ( '' === $candidate ) { |
| 454 |
// Couldn't derive a valid numeric ID from this gallery; try the next one. |
| 455 |
continue; |
| 456 |
} |
| 457 |
|
| 458 |
$current_gallery_id = $candidate; |
| 459 |
} else { |
| 460 |
$current_gallery_id = easy_image_gallery_sanitize_gallery_id( $current_gallery_id ); |
| 461 |
if ( '' === $current_gallery_id ) { |
| 462 |
continue; |
| 463 |
} |
| 464 |
} |
| 465 |
|
| 466 |
if ( (string) easy_image_gallery_sanitize_gallery_id( $gallery['SHORTCODE'] ) === (string) $current_gallery_id ) { |
| 467 |
$gallery_exist = true; |
| 468 |
|
| 469 |
$has_gallery_images = $gallery['DATA']; |
| 470 |
|
| 471 |
if ( !$has_gallery_images ) |
| 472 |
return; |
| 473 |
|
| 474 |
// clean the array (remove empty values) |
| 475 |
$has_gallery_images = array_filter( $has_gallery_images ); |
| 476 |
|
| 477 |
// css classes array |
| 478 |
$classes = array(); |
| 479 |
|
| 480 |
// thumbnail count |
| 481 |
$classes[] = $has_gallery_images ? 'thumbnails-' . easy_image_gallery_count_images( $gallery['SHORTCODE'], $gallery ) : ''; |
| 482 |
|
| 483 |
// linked images |
| 484 |
if ( isset($gallery['OPEN_IMAGES']) && $gallery['OPEN_IMAGES'] == 'on' ){ |
| 485 |
$classes[] = 'linked'; |
| 486 |
} |
| 487 |
|
| 488 |
$classes = implode( ' ', $classes ); |
| 489 |
if ( isset($has_gallery_images) && !empty($has_gallery_images) ) { |
| 490 |
?> |
| 491 |
<ul class="easy-image-gallery <?php echo esc_attr( $classes ); ?>"> |
| 492 |
<?php |
| 493 |
foreach ( $has_gallery_images as $attachment_id ) { |
| 494 |
$classes = array( 'eig-popup' ); |
| 495 |
|
| 496 |
// get original image |
| 497 |
$image_link = wp_get_attachment_image_src( $attachment_id, apply_filters( 'easy_image_gallery_linked_image_size', 'large' ) ); |
| 498 |
$image_link = $image_link[0]; |
| 499 |
|
| 500 |
$image = wp_get_attachment_image( $attachment_id, apply_filters( 'easy_image_gallery_thumbnail_image_size', 'thumbnail' ), '', array( 'alt' => trim( wp_strip_all_tags( get_post_meta( $attachment_id, '_wp_attachment_image_alt', true ) ) ) ) ); |
| 501 |
|
| 502 |
$image_caption = get_post( $attachment_id )->post_excerpt ? esc_attr( get_post( $attachment_id )->post_excerpt ) : ''; |
| 503 |
|
| 504 |
$image_class = esc_attr( implode( ' ', $classes ) ); |
| 505 |
|
| 506 |
$lightbox = easy_image_gallery_get_lightbox(); |
| 507 |
|
| 508 |
$rel = easy_image_gallery_lightbox_rel( $current_gallery_id ); |
| 509 |
|
| 510 |
if ( isset($gallery['OPEN_IMAGES']) && $gallery['OPEN_IMAGES'] == 'on' ) |
| 511 |
$html = sprintf( '<li><a %s href="%s" class="%s" title="%s" data-caption="%s" target="_blank"><i class="icon-view"></i><span class="overlay"></span>%s</a></li>', $rel, esc_url( $image_link ), $image_class, $image_caption, $image_caption, $image ); |
| 512 |
else |
| 513 |
$html = sprintf( '<li>%s</li>', $image ); |
| 514 |
|
| 515 |
echo wp_kses_post( apply_filters( 'easy_image_gallery_html', $html, $rel, $image_link, $image_class, $image_caption, $image, $attachment_id, $post->ID ) ); |
| 516 |
} |
| 517 |
echo '</ul>'; |
| 518 |
|
| 519 |
if ( easy_image_gallery_get_lightbox() === 'luminous' ) { |
| 520 |
$luminous_selector = sprintf( "a[rel='luminous[group-%s]']", easy_image_gallery_sanitize_gallery_id( $current_gallery_id ) ); |
| 521 |
printf( |
| 522 |
'<script>new LuminousGallery(document.querySelectorAll(%s));</script>', |
| 523 |
wp_json_encode( $luminous_selector ) |
| 524 |
); |
| 525 |
} |
| 526 |
} |
| 527 |
} |
| 528 |
} |
| 529 |
|
| 530 |
$eig_gallery = ob_get_clean(); |
| 531 |
return apply_filters( 'easy_image_gallery', $eig_gallery ); |
| 532 |
} |
| 533 |
} |
| 534 |
|
| 535 |
/** |
| 536 |
* Append gallery images to page automatically |
| 537 |
* |
| 538 |
* @since 1.0 |
| 539 |
*/ |
| 540 |
function easy_image_gallery_append_to_content( $content ) { |
| 541 |
// if it is single page and supported post_type and page not have shortcode. |
| 542 |
if ( is_singular() && is_main_query() && easy_image_gallery_allowed_post_type() && !easy_image_gallery_has_shortcode('easy_image_gallery') && ! easy_image_gallery_has_block('wp-block-devrix-easy-image-gallery-block') ) { |
| 543 |
$new_content = easy_image_gallery( 'old_db' ); |
| 544 |
$content .= $new_content; |
| 545 |
} |
| 546 |
|
| 547 |
return $content; |
| 548 |
} |
| 549 |
add_filter( 'the_content', 'easy_image_gallery_append_to_content' ); |
| 550 |
|
| 551 |
/** |
| 552 |
* Remove the_content filter if shortcode is detected on page |
| 553 |
* |
| 554 |
* @since 1.0 |
| 555 |
*/ |
| 556 |
function easy_image_gallery_template_redirect() { |
| 557 |
if ( easy_image_gallery_has_shortcode( 'easy_image_gallery' ) || easy_image_gallery_has_block('wp-block-devrix-easy-image-gallery-block') ) |
| 558 |
remove_filter( 'the_content', 'easy_image_gallery_append_to_content' ); |
| 559 |
} |
| 560 |
add_action( 'template_redirect', 'easy_image_gallery_template_redirect' ); |
| 561 |
|
