class-frontend.php — Responsive Lightbox & Gallery 2.7.7

responsive-lightbox / includes / class-frontend.php

responsive-lightbox / includes Last commit date

class-frontend.php

2877 lines

1	<?php
2	// exit if accessed directly
3	if ( ! defined( 'ABSPATH' ) )
4	exit;
5
6	new Responsive_Lightbox_Frontend();
7
8	/**
9	* Responsive Lightbox frontend class.
10	*
11	* @class Responsive_Lightbox_Frontend
12	*/
13	class Responsive_Lightbox_Frontend {
14
15	public $gallery_no = 0;
16
17	private $script_data = [
18	'gallery' => '',
19	'basicgrid' => '',
20	'basicslider' => '',
21	'basicmasonry' => ''
22	];
23	private $style_data = [
24	'gallery' => '',
25	'basicgrid' => '',
26	'basicslider' => '',
27	'basicmasonry' => ''
28	];
29
30	/**
31	* Class constructor.
32	*
33	* @return void
34	*/
35	public function __construct() {
36	// set instance
37	Responsive_Lightbox()->frontend = $this;
38
39	// actions
40	add_action( 'wp_enqueue_scripts', [ $this, 'wp_enqueue_scripts' ] );
41	add_action( 'wp_enqueue_scripts', [ $this, 'wp_dequeue_scripts' ], 100 );
42	add_action( 'rl_before_gallery', [ $this, 'before_gallery' ], 10, 2 );
43	add_action( 'rl_after_gallery', [ $this, 'after_gallery' ], 10, 2 );
44
45	// filters
46	add_filter( 'rl_gallery_container_class', [ $this, 'gallery_container_class' ], 10, 3 );
47	add_filter( 'the_content', [ $this, 'gallery_preview' ] );
48	add_filter( 'the_content', [ $this, 'add_lightbox' ], 11 );
49	add_filter( 'wp_get_attachment_link', [ $this, 'wp_get_attachment_link' ], 1000, 2 );
50	add_filter( 'get_comment_text', [ $this, 'get_comment_text' ] );
51	add_filter( 'dynamic_sidebar_params', [ $this, 'dynamic_sidebar_params' ] );
52	add_filter( 'rl_widget_output', [ $this, 'widget_output' ], 10, 3 );
53	add_filter( 'post_gallery', [ $this, 'gallery_attributes' ], 1000, 2 );
54	add_filter( 'post_gallery', [ $this, 'basic_grid_gallery_shortcode' ], 1001, 2 );
55	add_filter( 'post_gallery', [ $this, 'basic_slider_gallery_shortcode' ], 1001, 2 );
56	add_filter( 'post_gallery', [ $this, 'basic_masonry_gallery_shortcode' ], 1001, 2 );
57	add_filter( 'post_gallery', [ $this, 'force_custom_gallery_lightbox' ], 2000 );
58
59	// visual composer
60	add_filter( 'vc_shortcode_content_filter_after', [ $this, 'vc_shortcode_content_filter_after' ], 10, 2 );
61
62	// woocommerce
63	add_filter( 'woocommerce_single_product_image_html', [ $this, 'woocommerce_single_product_image_html' ], 100 );
64	add_filter( 'woocommerce_single_product_image_thumbnail_html', [ $this, 'woocommerce_single_product_image_thumbnail_html' ], 100, 2 );
65	}
66
67	/**
68	* Get class data.
69	*
70	* @param string $attr
71	* @return mixed
72	*/
73	public function get_data( $attr ) {
74	return property_exists( $this, $attr ) ? $this->{$attr} : null;
75	}
76
77	/**
78	* Determine whether gallery assets should be preloaded for the current request.
79	*
80	* @return bool
81	*/
82	private function should_preload_gallery_assets() {
83	global $post;
84
85	if ( ! is_object( $post ) )
86	return false;
87
88	if ( get_post_type( $post ) === 'rl_gallery' && is_singular( 'rl_gallery' ) )
89	return true;
90
91	return has_shortcode( $post->post_content, 'gallery' ) \|\| has_shortcode( $post->post_content, 'rl_gallery' );
92	}
93
94	/**
95	* Add lightbox to images, galleries and videos.
96	*
97	* @param string $content HTML content
98	* @return string
99	*/
100	public function add_lightbox( $content ) {
101	// get main instance
102	$rl = Responsive_Lightbox();
103
104	// get current script
105	$script = $rl->get_data( 'current_script' );
106
107	// get scripts
108	$scripts = $rl->settings->get_data( 'scripts' );
109
110	// prepare arguments
111	$args = [
112	'selector' => $rl->options['settings']['selector'],
113	'script' => $script,
114	'settings' => [
115	'script' => $rl->options['configuration'][$script],
116	'plugin' => $rl->options['settings']
117	],
118	'supports' => isset( $scripts[$script]['supports'] ) ? $scripts[$script]['supports'] : []
119	];
120
121	// workaround for builder galleries to bypass images_as_gallery option, applied only to rl_gallery posts
122	if ( is_singular( 'rl_gallery' ) )
123	$args['settings']['plugin']['images_as_gallery'] = true;
124
125	// search for links containing data-rl_content attribute
126	preg_match_all( '/<a[^>]?\bdata-rl_content=(["\'])(.?)\1[^>]*?>/i', $content, $links );
127
128	// found any links?
129	if ( ! empty ( $links[0] ) ) {
130	foreach ( $links[0] as $link_number => $link ) {
131	// set content type
132	$args['content'] = $links[2][$link_number];
133
134	// set link number
135	$args['link_number'] = $link_number;
136
137	// update link
138	$content = str_replace( $link, $this->lightbox_content_link( $link, $args ), $content );
139	}
140	}
141
142	// images
143	if ( $args['settings']['plugin']['image_links'] \|\| $args['settings']['plugin']['images_as_gallery'] \|\| $args['settings']['plugin']['force_custom_gallery'] ) {
144	// search for image links
145	preg_match_all( '/<a([^>]?)\bhref=(["\'])([^"\']?)\.(bmp\|gif\|jpeg\|jpg\|png\|webp)((?:[?#][^"\']?)?)\2(.?)>(.*?)<\/a>/is', $content, $links );
146
147	// found any links?
148	if ( ! empty ( $links[0] ) ) {
149	// generate hash for single images gallery
150	if ( $args['settings']['plugin']['images_as_gallery'] )
151	$args['rel_hash'] = '-gallery-' . $this->generate_hash();
152	else
153	$args['rel_hash'] = '';
154
155	foreach ( $links[0] as $link_number => $link ) {
156	// get attachment id
157	$args['image_id'] = $this->get_attachment_id_by_url( $links[3][$link_number] . '.' . $links[4][$link_number] );
158
159	// set link number
160	$args['link_number'] = $link_number;
161
162	// link parts
163	$args['link_parts'] = [ $links[1][$link_number], $links[3][$link_number], $links[4][$link_number], $links[5][$link_number], $links[6][$link_number], $links[7][$link_number] ];
164
165	// get title type
166	$title_arg = $args['settings']['plugin']['force_custom_gallery'] ? $args['settings']['plugin']['gallery_image_title'] : $args['settings']['plugin']['image_title'];
167
168	// update title if needed
169	if ( $title_arg !== 'default' && $args['image_id'] )
170	$args['title'] = $this->get_attachment_title( $args['image_id'], apply_filters( 'rl_lightbox_attachment_image_title_arg', $title_arg, $args['image_id'], $links[3][$link_number] . '.' . $links[4][$link_number] ) );
171	else
172	$args['title'] = '';
173
174	// get caption type
175	$caption_arg = $args['settings']['plugin']['force_custom_gallery'] ? $args['settings']['plugin']['gallery_image_caption'] : $args['settings']['plugin']['image_caption'];
176
177	// update caption if needed
178	if ( $caption_arg !== 'default' && $args['image_id'] )
179	$args['caption'] = $this->get_attachment_title( $args['image_id'], apply_filters( 'rl_lightbox_attachment_image_title_arg', $caption_arg, $args['image_id'], $links[3][$link_number] . '.' . $links[4][$link_number] ) );
180	else
181	$args['caption'] = '';
182
183	// rl gallery link?
184	if ( preg_match( '/class="(?:.?)rl-gallery-link[^"]?"/i', $links[1][$link_number] ) === 1 \|\| preg_match( '/class="(?:.?)rl-gallery-link[^"]?"/i', $links[6][$link_number] ) === 1 ) {
185	// update link allowing only filter to run, bypass default changes
186	$content = str_replace( $link, $this->lightbox_image_link( $link, $args, true ), $content );
187	} else {
188	// update link
189	$content = str_replace( $link, $this->lightbox_image_link( $link, $args ), $content );
190	}
191	}
192	}
193	}
194
195	// videos
196	if ( $args['settings']['plugin']['videos'] && rl_current_lightbox_supports( 'video' ) ) {
197	// search for video links
198	preg_match_all('/<a([^>]?)\bhref=(["\'])((http\|https)(?::\/\/\|)(?:(?:(?:youtu\.be\/\|(?:www\.)?youtube\.com\/)(?:embed\/\|v\/\|watch\?v=)?([\w-]{11})(?:\?)?([a-z0-9;:@#&%=+\/\$_.-]))\|(?:(?:www\.)?vimeo\.com\/([0-9]+)(?:\?)?([a-z0-9;:@#&%=+\/\$_.-]))))\2(.?)>(.*?)<\/a>/i', $content, $links );
199
200	// set empty video arguments
201	$args['video_id'] = $args['video_type'] = $args['video_query'] = $args['video_protocol'] = '';
202
203	// found any links?
204	if ( ! empty ( $links[0] ) ) {
205	foreach ( $links[0] as $link_number => $link ) {
206	// youtube?
207	if ( $links[5][$link_number] !== '' ) {
208	$args['video_id'] = $links[5][$link_number];
209	$args['video_type'] = 'youtube';
210	$args['video_query'] = $links[6][$link_number];
211	// vimeo?
212	} elseif ( $links[7][$link_number] !== '' ) {
213	$args['video_id'] = $links[7][$link_number];
214	$args['video_type'] = 'vimeo';
215	$args['video_query'] = $links[8][$link_number];
216	}
217
218	// set video protocol
219	$args['video_protocol'] = $links[4][$link_number];
220
221	// set link number
222	$args['link_number'] = $link_number;
223
224	// link parts
225	$args['link_parts'] = [ $links[1][$link_number], $links[3][$link_number], $links[9][$link_number], $links[10][$link_number] ];
226
227	// rl gallery link?
228	if ( preg_match( '/class="(?:.?)rl-gallery-link[^"]?"/i', $links[1][$link_number] ) === 1 \|\| preg_match( '/class="(?:.?)rl-gallery-link[^"]?"/i', $links[9][$link_number] ) === 1 ) {
229	// update link allowing only filter to run, bypass default changes
230	$content = str_replace( $link, $this->lightbox_video_link( $link, $args, true ), $content );
231	} else {
232	// update link
233	$content = str_replace( $link, $this->lightbox_video_link( $link, $args ), $content );
234	}
235	}
236	}
237	}
238
239	return $content;
240	}
241
242	/**
243	* Add lightbox to video links.
244	*
245	* @param string $link Video link
246	* @param array $args Link arguments
247	* @param bool $only_filter Whether function should run only filter
248	* @return string
249	*/
250	public function lightbox_video_link( $link, $args, $only_filter = false ) {
251	if ( ! $only_filter ) {
252	// link already contains data-rel attribute?
253	if ( preg_match( '/<a[^>]?\bdata-rel=(["\'])(.?)\1[^>]*?>/is', $link, $result ) === 1 ) {
254	// allow to modify link?
255	if ( $result[2] !== 'norl' ) {
256	// swipebox video fix
257	if ( $args['script'] === 'swipebox' && $args['video_type'] === 'vimeo' )
258	$link = str_replace( $args['link_parts'][1], add_query_arg( 'width', $args['settings']['script']['video_max_width'], $args['link_parts'][1] ), $link );
259
260	// replace data-rel
261	$link = preg_replace( '/\bdata-rel=(["\'])(.*?)\1/s', 'data-rel="' . esc_attr( $args['selector'] ) . '-video-' . (int) $args['link_number'] . '"', $link, 1 );
262
263	if ( $args['script'] === 'magnific' )
264	$link = preg_replace( '/(<a.*?)>/is', '$1 data-magnific_type="video">', $link );
265	}
266	} else {
267	// swipebox video fix
268	if ( $args['script'] === 'swipebox' && $args['video_type'] === 'vimeo' )
269	$args['link_parts'][1] = add_query_arg( 'width', $args['settings']['script']['video_max_width'], $args['link_parts'][1] );
270
271	// add data-rel
272	$link = '<a' . $args['link_parts'][0] . 'href="' . $args['link_parts'][1] . '" data-rel="' . esc_attr( $args['selector'] ) . '-video-' . (int) $args['link_number'] . '"' . $args['link_parts'][2] . '>' . $args['link_parts'][3] . '</a>';
273
274	if ( $args['script'] === 'magnific' )
275	$link = preg_replace( '/(<a.*?)>/is', '$1 data-magnific_type="video">', $link );
276	}
277	}
278
279	return apply_filters( 'rl_lightbox_video_link', $link, $args );
280	}
281
282	/**
283	* Add lightbox to image links.
284	*
285	* @param string $link Image link
286	* @param array $args Link arguments
287	* @param bool $only_filter Whether function should run only filter
288	* @return string
289	*/
290	public function lightbox_image_link( $link, $args, $only_filter = false ) {
291	if ( ! $only_filter ) {
292	if ( isset( $_GET['rl_gallery_no'], $_GET['rl_page'] ) )
293	$this->gallery_no = (int) $_GET['rl_gallery_no'];
294
295	// link already contains data-rel attribute?
296	if ( preg_match( '/<a[^>]?\bdata-rel=(["\'])(.?)\1[^>]*?>/is', $link, $result ) === 1 ) {
297	// allow to modify link?
298	if ( $result[2] !== 'norl' ) {
299	// gallery?
300	if ( $args['settings']['plugin']['images_as_gallery'] \|\| $args['settings']['plugin']['force_custom_gallery'] )
301	$link = preg_replace( '/\bdata-rel=(["\'])(.*?)\1/s', 'data-rel="' . esc_attr( $args['selector'] ) . '-gallery-' . esc_attr( base64_encode( sanitize_text_field( $result[2] ) ) ) . '" data-rl_title="__RL_IMAGE_TITLE__" data-rl_caption="__RL_IMAGE_CAPTION__"' . ( $args['script'] === 'magnific' ? ' data-magnific_type="gallery"' : '' ) . ( $args['script'] === 'imagelightbox' ? ' data-imagelightbox="' . (int) $args['link_number'] . '"' : '' ), $link, 1 );
302	// single image
303	else
304	$link = preg_replace( '/\bdata-rel=(["\'])(.*?)\1/s', 'data-rel="' . esc_attr( $args['selector'] ) . '-image-' . esc_attr( base64_encode( sanitize_text_field( $result[2] ) ) ) . '"' . ( $args['script'] === 'magnific' ? ' data-magnific_type="image"' : '' ) . ( $args['script'] === 'imagelightbox' ? ' data-imagelightbox="' . (int) $args['link_number'] . '"' : '' ) . ' data-rl_title="__RL_IMAGE_TITLE__" data-rl_caption="__RL_IMAGE_CAPTION__"', $link, 1 );
305	}
306	// link without data-rel
307	} else {
308	// force images?
309	if ( $args['settings']['plugin']['force_custom_gallery'] ) {
310	// link already contains rel attribute?
311	if ( preg_match( '/<a[^>]?\brel=(["\'])(.?)\1[^>]*?>/is', $link, $result ) === 1 ) {
312	// allow to modify link?
313	if ( $result[2] !== 'norl' )
314	$link = preg_replace( '/\brel=(["\'])(.*?)\1/s', 'data-rel="' . esc_attr( $args['selector'] ) . '-gallery-' . (int) $this->gallery_no . '" data-rl_title="__RL_IMAGE_TITLE__" data-rl_caption="__RL_IMAGE_CAPTION__"' . ( $args['script'] === 'magnific' ? ' data-magnific_type="gallery"' : '' ) . ( $args['script'] === 'imagelightbox' ? ' data-imagelightbox="' . (int) $args['link_number'] . '"' : '' ), $link, 1 );
315	} else
316	$link = '<a' . $args['link_parts'][0] . ' href="' . $args['link_parts'][1] . '.' . $args['link_parts'][2] . $args['link_parts'][3] . '" data-rel="' . esc_attr( $args['selector'] ) . '-gallery-' . (int) $this->gallery_no . '" data-rl_title="__RL_IMAGE_TITLE__" data-rl_caption="__RL_IMAGE_CAPTION__"' . ( $args['script'] === 'magnific' ? ' data-magnific_type="gallery"' : '' ) . ( $args['script'] === 'imagelightbox' ? ' data-imagelightbox="' . (int) $args['link_number'] . '"' : '' ) . $args['link_parts'][4] . '>' . $args['link_parts'][5] . '</a>';
317	} else
318	$link = '<a' . $args['link_parts'][0] . 'href="' . $args['link_parts'][1] . '.' . $args['link_parts'][2] . $args['link_parts'][3] . '"' . $args['link_parts'][4] . ' data-rel="' . esc_attr( $args['selector'] ) . ( $args['settings']['plugin']['images_as_gallery'] ? esc_attr( $args['rel_hash'] ) : '-image-' . (int) $args['link_number'] ) . '"' . ( $args['script'] === 'magnific' ? ' data-magnific_type="image"' : '' ) . ( $args['script'] === 'imagelightbox' ? ' data-imagelightbox="' . (int) $args['link_number'] . '"' : '' ) . ' data-rl_title="__RL_IMAGE_TITLE__" data-rl_caption="__RL_IMAGE_CAPTION__">' . $args['link_parts'][5] . '</a>';
319	}
320
321	// prepare title and caption
322	$title = trim ( nl2br( $args['title'] ) );
323	$caption = trim( nl2br( $args['caption'] ) );
324
325	if ( ! rl_current_lightbox_supports( 'html_caption' ) ) {
326	$title = wp_strip_all_tags( $title, true );
327	$caption = wp_strip_all_tags( $caption, true );
328	}
329
330	// use safe replacement for data-rl_title and data-rl_caption
331	$link = str_replace( '__RL_IMAGE_TITLE__', esc_attr( $title ), str_replace( '__RL_IMAGE_CAPTION__', esc_attr( $caption ), $link ) );
332
333	// title exists?
334	if ( preg_match( '/<a.? title=(?:\'\|").?(?:\'\|").*?>/is', $link ) === 1 ) {
335	$link = preg_replace( '/(<a.? title=(?:\'\|")).?((?:\'\|").*?>)/s', '${1}__RL_IMAGE_TITLE__$2', $link );
336	} else
337	$link = preg_replace( '/(<a.*?)>/s', '$1 title="__RL_IMAGE_TITLE__">', $link );
338
339	// last safe replacement for title
340	$link = str_replace( '__RL_IMAGE_TITLE__', esc_attr( $title ), $link );
341	}
342
343	return apply_filters( 'rl_lightbox_image_link', $link, $args );
344	}
345
346	/**
347	* Add lightbox to gallery image links.
348	*
349	* @param string $link
350	* @param int\|object $id
351	* @return string
352	*/
353	public function wp_get_attachment_link( $link, $id ) {
354	// get main instance
355	$rl = Responsive_Lightbox();
356
357	if ( $rl->options['settings']['galleries'] && wp_attachment_is_image( $id ) ) {
358	// get current script
359	$script = $rl->get_data( 'current_script' );
360
361	// get scripts
362	$scripts = $rl->settings->get_data( 'scripts' );
363
364	// prepare arguments
365	$args = [
366	'selector' => $rl->options['settings']['selector'],
367	'script' => $script,
368	'settings' => [
369	'script' => $rl->options['configuration'][$script],
370	'plugin' => $rl->options['settings']
371	],
372	'supports' => $scripts[$script]['supports'],
373	'image_id' => is_object( $id ) ? $id->id : $id,
374	'title' => '',
375	'caption' => '',
376	'src' => []
377	];
378
379	$link = $this->lightbox_gallery_link( $link, $args );
380	}
381
382	return $link;
383	}
384
385	/**
386	* Add lightbox to gallery image links.
387	*
388	* @param string $link Gallery image link
389	* @param array $args Gallery link arguments
390	* @return string
391	*/
392	public function lightbox_gallery_link( $link, $args ) {
393	// gallery image title
394	$title = ! empty( $args['title'] ) ? $args['title'] : '';
395
396	// get title type
397	$title_arg = $args['settings']['plugin']['gallery_image_title'];
398
399	// update title if needed
400	if ( ! empty( $args['image_id'] ) && $title_arg !== 'default' ) {
401	// original title
402	$args['title'] = $this->get_attachment_title( $args['image_id'], apply_filters( 'rl_lightbox_attachment_image_title_arg', $title_arg, $args['image_id'], $link ) );
403	}
404
405	// prepare title
406	$title = trim ( nl2br( $args['title'] ) );
407
408	if ( ! rl_current_lightbox_supports( 'html_caption' ) )
409	$title = wp_strip_all_tags( $title, true );
410
411	// use safe replacement for title and data-rl_title
412	if ( preg_match( '/<a.? title=(?:\'\|").?(?:\'\|").*?>/is', $link ) === 1 )
413	$link = str_replace( '__RL_IMAGE_TITLE__', esc_attr( $title ), preg_replace( '/(<a.? title=(?:\'\|")).?((?:\'\|").*?>)/s', '$1__RL_IMAGE_TITLE__" data-rl_title="__RL_IMAGE_TITLE__$2', $link ) );
414	else
415	$link = str_replace( '__RL_IMAGE_TITLE__', esc_attr( $title ), preg_replace( '/(<a.*?)>/s', '$1 title="__RL_IMAGE_TITLE__" data-rl_title="__RL_IMAGE_TITLE__">', $link ) );
416
417	// add class if needed
418	if ( preg_match( '/<a[^>]? class=(?:\'\|").?(?:\'\|").*?>/is', $link ) === 1 )
419	$link = preg_replace( '/(<a.?) class=(?:\'\|")(.?)(?:\'\|")(.*?>)/s', '$1 class="$2 rl-gallery-link" $3', $link );
420	else
421	$link = preg_replace( '/(<a.*?)>/s', '$1 class="rl-gallery-link">', $link );
422
423	// gallery image caption
424	$caption = ! empty( $args['caption'] ) ? $args['caption'] : '';
425
426	// get caption type
427	$caption_arg = $args['settings']['plugin']['gallery_image_caption'];
428
429	// update caption if needed
430	if ( ! empty( $args['image_id'] ) && $caption_arg !== 'default' ) {
431	// original caption
432	$args['caption'] = $this->get_attachment_title( $args['image_id'], apply_filters( 'rl_lightbox_attachment_image_title_arg', $caption_arg, $args['image_id'], $link ) );
433	}
434
435	// prepare caption
436	$caption = trim( nl2br( $args['caption'] ) );
437
438	if ( ! rl_current_lightbox_supports( 'html_caption' ) )
439	$caption = wp_strip_all_tags( $caption, true );
440
441	// use safe replacement for data-rl_caption
442	$link = str_replace( '__RL_IMAGE_CAPTION__', esc_attr( $caption ), preg_replace( '/(<a.*?)>/s', '$1 data-rl_caption="__RL_IMAGE_CAPTION__">', $link ) );
443
444	if ( isset( $_GET['rl_gallery_no'], $_GET['rl_page'] ) )
445	$this->gallery_no = (int) $_GET['rl_gallery_no'];
446
447	// link already contains data-rel attribute?
448	if ( preg_match( '/<a[^>]?\bdata-rel=(["\'])(.?)\1[^>]*?>/is', $link, $result ) === 1 ) {
449	if ( $result[2] !== 'norl' )
450	$link = preg_replace( '/\bdata-rel=(["\'])(.*?)\1/s', 'data-rel="' . esc_attr( $args['selector'] ) . '-gallery-' . (int) $this->gallery_no . '"', $link, 1 );
451	} else
452	$link = preg_replace( '/(<a.*?)>/s', '$1 data-rel="' . esc_attr( $args['selector'] ) . '-gallery-' . (int) $this->gallery_no . '">', $link );
453
454	if ( ! ( isset( $args['link'] ) && $args['link'] !== 'file' ) ) {
455	// gallery image size
456	if ( ! empty( $args['image_id'] ) ) {
457	if ( empty( $args['src'] ) )
458	$args['src'] = wp_get_attachment_image_src( $args['image_id'], $args['settings']['plugin']['gallery_image_size'] );
459
460	// valid source?
461	if ( ! empty( $args['src'][0] ) ) {
462	if ( preg_match( '/<a[^>]?\bhref=(["\']).?\1[^>]*?>/is', $link ) === 1 )
463	$link = preg_replace( '/(<a[^>]?\bhref=)(["\']).?\2/is', '$1$2' . $args['src'][0] . '$2', $link, 1 );
464	else
465	$link = preg_replace( '/(<a.*?)>/', '$1 href="' . $args['src'][0] . '">', $link );
466	}
467	}
468
469	if ( $args['script'] === 'magnific' )
470	$link = preg_replace( '/(<a.*?)>/is', '$1 data-magnific_type="gallery">', $link );
471	}
472
473	return apply_filters( 'rl_lightbox_gallery_link', $link, $args );
474	}
475
476	/**
477	* Add lightbox to content links.
478	*
479	* @param string $link
480	* @param array $args
481	*
482	* @return string
483	*/
484	public function lightbox_content_link( $link, $args ) {
485	if ( in_array( $args['content'], $args['supports'], true ) ) {
486	libxml_use_internal_errors( true );
487
488	$dom = new DOMDocument();
489	$dom->loadHTML('<?xml encoding="utf-8" ?>' . $link, LIBXML_HTML_NOIMPLIED \| LIBXML_HTML_NODEFDTD);
490
491	$anchors = $dom->getElementsByTagName( 'a' );
492
493	if ( $anchors->length > 0 ) {
494	$a = $anchors->item( 0 );
495
496	if ( $a->hasAttribute( 'data-rel' ) ) {
497	$value = $a->getAttribute( 'data-rel' );
498	$a->setAttribute( 'data-rel', esc_attr( $args['selector'] ) . '-content-' . esc_attr( base64_encode( $value ) ) );
499	} else
500	$a->setAttribute( 'data-rel', esc_attr( $args['selector'] ) . '-content-' . (int) $args['link_number'] );
501
502	// remove ending </a> tag
503	$link = preg_replace( '/<\/a>$/', '', $dom->saveHTML($a));
504	}
505
506	libxml_use_internal_errors( false );
507
508	switch ( $args['script'] ) {
509	case 'nivo':
510	$link = preg_replace( '/(<a.*?)>/s', '$1 data-lightbox-type="' . esc_attr( $args['content'] ) . '">', $link );
511	break;
512
513	case 'featherlight':
514	$link = preg_replace( '/(<a.*?)>/s', '$1 data-featherlight="' . esc_attr( $args['content'] ) . '">', $link );
515	break;
516
517	case 'prettyphoto':
518	if ( $args['content'] === 'iframe' )
519	$link = preg_replace( '/(<a[^>]?\bhref=)(["\'])(.?)\2/is', '$1$2' . add_query_arg( [ 'iframe' => 'true', 'width' => (int) $args['settings']['width'], 'height' => (int) $args['settings']['height'] ], '$3' ) . '$2', $link, 1 );
520	}
521	}
522
523	return apply_filters( 'rl_lightbox_content_link', $link, $args );
524	}
525
526	/**
527	* Get gallery fields.
528	*
529	* @param string $type Gallery type
530	* @return array
531	*/
532	public function get_gallery_fields( $type ) {
533	// get main instance
534	$rl = Responsive_Lightbox();
535
536	// get gallery fields
537	$gallery_fields = $rl->settings->get_setting_fields( $type . '_gallery' );
538
539	// assign settings and defaults
540	$gallery_defaults = $rl->defaults[$type . '_gallery'];
541	$gallery_values = $rl->options[$type . '_gallery'];
542
543	// make a copy
544	$fields_copy = $gallery_fields;
545
546	foreach ( $fields_copy as $field_key => $field ) {
547	if ( $field['type'] === 'multiple' ) {
548	foreach ( $field['fields'] as $subfield_key => $subfield ) {
549	$gallery_fields[$field_key]['fields'][$subfield_key]['default'] = $gallery_defaults[$subfield_key];
550	$gallery_fields[$field_key]['fields'][$subfield_key]['value'] = array_key_exists( $subfield_key, $gallery_values ) ? $gallery_values[$subfield_key] : $gallery_defaults[$subfield_key];
551	}
552	} else {
553	$gallery_fields[$field_key]['default'] = $gallery_defaults[$field_key];
554	$gallery_fields[$field_key]['value'] = array_key_exists( $field_key, $gallery_values ) ? $gallery_values[$field_key] : $gallery_defaults[$field_key];
555	}
556	}
557
558	// get shortcode gallery fields combined with defaults
559	return apply_filters( 'rl_get_gallery_fields', $this->get_unique_fields( $this->get_default_gallery_fields(), $gallery_fields ) );
560	}
561
562	/**
563	* Get unique gallery fields.
564	*
565	* @param array $defaults Default gallery fields
566	* @param array $fields Custom gallery fields
567	* @return array
568	*/
569	public function get_unique_fields( $defaults, $fields ) {
570	// check duplicated fields
571	$duplicates = array_intersect_key( $defaults, $fields );
572
573	// any duplicated fields?
574	if ( ! empty( $duplicates ) ) {
575	foreach ( $duplicates as $field_id => $field ) {
576	unset( $defaults[$field_id] );
577	}
578	}
579
580	// get default and custom fields all together
581	return $defaults + $fields;
582	}
583
584	/**
585	* Get gallery fields combined with shortcode attributes.
586	*
587	* @param array $fields Gallery fields
588	* @param array $shortcode_atts Gallery shortcode attributes
589	* @param bool $gallery Whether is it rl_gallery shortcode
590	* @return array
591	*/
592	public function get_gallery_fields_atts( $fields, $shortcode_atts, $gallery = true ) {
593	// prepare default values
594	$field_atts = [];
595
596	// get all default field values
597	foreach ( $fields as $field_key => $field ) {
598	if ( $field['type'] === 'multiple' ) {
599	foreach ( $field['fields'] as $subfield_key => $subfield ) {
600	$field_atts[$subfield_key] = array_key_exists( 'value', $subfield ) ? $subfield['value'] : $subfield['default'];
601	}
602	} else
603	$field_atts[$field_key] = array_key_exists( 'value', $field ) ? $field['value'] : $field['default'];
604	}
605
606	// is it rl gallery?
607	if ( $gallery ) {
608	// get tabs
609	$tabs = Responsive_Lightbox()->galleries->get_data( 'tabs' );
610
611	if ( ! empty( $tabs ) ) {
612	foreach ( $tabs as $key => $args ) {
613	if ( in_array( $key, [ 'images', 'config' ] ) )
614	continue;
615
616	// get additional fields
617	$data = get_post_meta( $shortcode_atts['rl_gallery_id'], '_rl_' . $key, true );
618
619	// add those fields
620	if ( is_array( $data ) && ! empty( $data['menu_item'] ) && isset( $data[$data['menu_item']] ) && is_array( $data[$data['menu_item']] ) ) {
621	$new_data = $data[$data['menu_item']];
622
623	if ( $key === 'design' ) {
624	// remove show_title to avoid shortcode attribute duplication
625	if ( isset( $new_data['show_title'] ) ) {
626	if ( ! isset( $new_data['design_show_title'] ) )
627	$new_data['design_show_title'] = $new_data['show_title'];
628
629	unset( $new_data['show_title'] );
630	}
631
632	// remove show_caption to avoid shortcode attribute duplication
633	if ( isset( $new_data['show_caption'] ) ) {
634	if ( ! isset( $new_data['design_show_caption'] ) )
635	$new_data['design_show_caption'] = $new_data['show_caption'];
636
637	unset( $new_data['show_caption'] );
638	}
639	}
640
641	$field_atts += $new_data;
642	}
643	}
644	}
645
646	if ( $field_atts['hover_effect'] !== '0' )
647	$field_atts['gallery_custom_class'] .= ' rl-hover-effect-' . $field_atts['hover_effect'];
648
649	if ( $field_atts['show_icon'] !== '0' )
650	$field_atts['gallery_custom_class'] .= ' rl-hover-icon-' . $field_atts['show_icon'];
651	}
652
653	return (array) apply_filters( 'rl_get_gallery_fields_atts', $field_atts );
654	}
655
656	/**
657	* Get default gallery fields.
658	*
659	* @return array
660	*/
661	public function get_default_gallery_fields() {
662	$sizes = get_intermediate_image_sizes();
663	$sizes['full'] = 'full';
664
665	return [
666	'size' => [
667	'title' => __( 'Image Size', 'responsive-lightbox' ),
668	'type' => 'select',
669	'description' => __( 'Specify the image size to use for the thumbnail display.', 'responsive-lightbox' ),
670	'default' => 'medium',
671	'options' => array_combine( $sizes, $sizes )
672	],
673	'link' => [
674	'title' => __( 'Link To', 'responsive-lightbox' ),
675	'type' => 'select',
676	'description' => __( 'Specify where you want the image to link.', 'responsive-lightbox' ),
677	'default' => 'file',
678	'options' => [
679	'post' => __( 'Attachment Page', 'responsive-lightbox' ),
680	'file' => __( 'Media File', 'responsive-lightbox' ),
681	'none' => __( 'None', 'responsive-lightbox' )
682	]
683	],
684	'orderby' => [
685	'title' => __( 'Order By', 'responsive-lightbox' ),
686	'type' => 'select',
687	'description' => __( 'Specify how to sort the display thumbnails.', 'responsive-lightbox' ),
688	'default' => 'menu_order',
689	'options' => [
690	'id' => __( 'ID', 'responsive-lightbox' ),
691	'title' => __( 'Title', 'responsive-lightbox' ),
692	'post_date' => __( 'Date', 'responsive-lightbox' ),
693	'menu_order' => __( 'Menu Order', 'responsive-lightbox' ),
694	'rand' => __( 'Random', 'responsive-lightbox' )
695	]
696	],
697	'order' => [
698	'title' => __( 'Order', 'responsive-lightbox' ),
699	'type' => 'radio',
700	'description' => __( 'Specify the sort order.', 'responsive-lightbox' ),
701	'default' => 'asc',
702	'options' => [
703	'asc' => __( 'Ascending', 'responsive-lightbox' ),
704	'desc' => __( 'Descending', 'responsive-lightbox' )
705	]
706	],
707	'columns' => [
708	'title' => __( 'Columns', 'responsive-lightbox' ),
709	'type' => 'number',
710	'description' => __( 'Specify the number of columns.', 'responsive-lightbox' ),
711	'default' => 3,
712	'min' => 1,
713	'max' => 12
714	]
715	];
716	}
717
718	/**
719	* Sanitize shortcode gallery arguments.
720	*
721	* @param array $atts Shortcode arguments
722	* @param array $fields Gallery fields
723	* @return array
724	*/
725	public function sanitize_shortcode_args( $atts, $fields ) {
726	// get main instance
727	$rl = Responsive_Lightbox();
728
729	// validate gallery fields
730	foreach ( $fields as $field_key => $field ) {
731	// checkbox field?
732	if ( $field['type'] === 'checkbox' ) {
733	// valid argument?
734	if ( array_key_exists( $field_key, $atts ) ) {
735	if ( is_array( $atts[$field_key] ) )
736	$array = $atts[$field_key];
737	elseif ( is_string( $atts[$field_key] ) ) {
738	if ( $atts[$field_key] === '' )
739	$array = [];
740	else
741	$array = explode( ',', $atts[$field_key] );
742	} else
743	$array = [];
744
745	$atts[$field_key] = $rl->galleries->sanitize_field( $field_key, array_flip( $array ), $field );
746	}
747	// boolean field?
748	} elseif ( $field['type'] === 'boolean' ) {
749	// multiple field?
750	if ( $field['type'] === 'multiple' ) {
751	foreach ( $field['fields'] as $subfield_key => $subfield ) {
752	// valid argument?
753	if ( array_key_exists( $subfield_key, $atts ) ) {
754	// true value?
755	if ( $atts[$subfield_key] === true \|\| $atts[$subfield_key] === 'true' \|\| $atts[$subfield_key] === '1' )
756	$atts[$subfield_key] = 1;
757	// false value?
758	elseif ( $atts[$subfield_key] === false \|\| $atts[$subfield_key] === 'false' \|\| $atts[$subfield_key] === '0' \|\| $atts[$subfield_key] === '' )
759	$atts[$subfield_key] = 0;
760	// default value
761	else
762	$atts[$subfield_key] = (int) $field['default'];
763	}
764	}
765	} else {
766	// valid argument?
767	if ( array_key_exists( $field_key, $atts ) ) {
768	// true value?
769	if ( $atts[$field_key] === true \|\| $atts[$field_key] === 'true' \|\| $atts[$field_key] === '1' )
770	$atts[$field_key] = 1;
771	// false value?
772	elseif ( $atts[$field_key] === false \|\| $atts[$field_key] === 'false' \|\| $atts[$field_key] === '0' \|\| $atts[$field_key] === '' )
773	$atts[$field_key] = 0;
774	// default value
775	else
776	$atts[$field_key] = (int) $field['default'];
777	}
778	}
779	// multiple field?
780	} elseif ( $field['type'] === 'multiple' ) {
781	foreach ( $field['fields'] as $subfield_key => $subfield ) {
782	// valid argument?
783	if ( array_key_exists( $subfield_key, $atts ) )
784	$atts[$subfield_key] = $rl->galleries->sanitize_field( $subfield_key, $atts[$subfield_key], $subfield );
785	}
786	// other field?
787	} else {
788	// valid argument?
789	if ( array_key_exists( $field_key, $atts ) )
790	$atts[$field_key] = $rl->galleries->sanitize_field( $field_key, $atts[$field_key], $field );
791	}
792	}
793
794	return (array) apply_filters( 'rl_sanitize_shortcode_args', $atts );
795	}
796
797	/**
798	* Get gallery images.
799	*
800	* @param array $shortcode_atts Gallery arguments
801	* @return array
802	*/
803	public function get_gallery_shortcode_images( $shortcode_atts ) {
804	// get main instance
805	$rl = Responsive_Lightbox();
806
807	if ( ! isset( $shortcode_atts['design_show_title'] ) \|\| $shortcode_atts['design_show_title'] === 'global' )
808	$shortcode_atts['design_show_title'] = $rl->options['settings']['gallery_image_title'];
809
810	if ( ! isset( $shortcode_atts['design_show_caption'] ) \|\| $shortcode_atts['design_show_caption'] === 'global' )
811	$shortcode_atts['design_show_caption'] = $rl->options['settings']['gallery_image_caption'];
812
813	$images = [];
814
815	// get gallery id
816	$gallery_id = ! empty( $shortcode_atts['rl_gallery_id'] ) ? absint( $shortcode_atts['rl_gallery_id'] ) : 0;
817
818	// get images from gallery
819	if ( $gallery_id ) {
820	$images = $rl->galleries->get_gallery_images(
821	$gallery_id,
822	[
823	'exclude' => true,
824	'image_size' => $shortcode_atts['src_size'],
825	'thumbnail_size' => $shortcode_atts['size'],
826	'preview' => ( isset( $_GET['rl_gallery_revision_id'], $_GET['preview'] ) && $_GET['preview'] === 'true' ) \|\| ( isset( $_POST['action'], $_POST['preview'] ) && $_POST['action'] === 'rl-get-gallery-page-content' && $_POST['preview'] === 'true' && wp_doing_ajax() )
827	]
828	);
829	// get images from shortcode atts
830	} else {
831	$ids = [];
832
833	if ( ! empty( $shortcode_atts['include'] ) ) {
834	// Normalize input from shortcode strings and widget/programmatic array payloads.
835	$include = wp_parse_id_list( $shortcode_atts['include'] );
836
837	// any attachments?
838	if ( ! empty( $include ) ) {
839	// get attachments
840	$ids = get_posts(
841	[
842	'include' => implode( ',', $include ),
843	'post_status' => 'inherit',
844	'post_type' => 'attachment',
845	'post_mime_type' => 'image',
846	'order' => $shortcode_atts['order'],
847	'orderby' => ( $shortcode_atts['orderby'] === 'menu_order' \|\| $shortcode_atts['orderby'] === '' ? 'post__in' : $shortcode_atts['orderby'] ),
848	'fields' => 'ids'
849	]
850	);
851	}
852	} elseif ( ! empty( $shortcode_atts['exclude'] ) ) {
853	// Normalize input from shortcode strings and widget/programmatic array payloads.
854	$exclude = wp_parse_id_list( $shortcode_atts['exclude'] );
855
856	// any attachments?
857	if ( ! empty( $exclude ) ) {
858	// get attachments
859	$ids = get_children(
860	[
861	'post_parent' => $shortcode_atts['id'],
862	'exclude' => $exclude,
863	'post_status' => 'inherit',
864	'post_type' => 'attachment',
865	'post_mime_type' => 'image',
866	'order' => $shortcode_atts['order'],
867	'orderby' => $shortcode_atts['orderby'],
868	'fields' => 'ids'
869	]
870	);
871	}
872	} else {
873	// get attachments
874	$ids = get_children(
875	[
876	'post_parent' => $shortcode_atts['id'],
877	'post_status' => 'inherit',
878	'post_type' => 'attachment',
879	'post_mime_type' => 'image',
880	'order' => $shortcode_atts['order'],
881	'orderby' => $shortcode_atts['orderby'],
882	'fields' => 'ids'
883	]
884	);
885	}
886
887	// any attachments?
888	if ( ! empty( $ids ) ) {
889	foreach ( $ids as $attachment_id ) {
890	// get thumbnail image data
891	$images[] = $rl->galleries->get_gallery_image_src( $attachment_id, $shortcode_atts['src_size'], $shortcode_atts['size'] );
892	}
893	}
894	}
895
896	// apply adjustments, as per settings
897	if ( $images ) {
898	// get current script
899	$script = $rl->get_data( 'current_script' );
900
901	// get scripts
902	$scripts = $rl->settings->get_data( 'scripts' );
903
904	// prepare arguments
905	$args = [
906	'selector' => $rl->options['settings']['selector'],
907	'script' => $script,
908	'settings' => [
909	'script' => $rl->options['configuration'][$script],
910	'plugin' => $rl->options['settings']
911	],
912	'supports' => isset( $scripts[$script]['supports'] ) ? $scripts[$script]['supports'] : [],
913	'image_id' => 0,
914	'caption' => '',
915	'title' => '',
916	'src' => []
917	];
918
919	// lightbox image title
920	$args['settings']['plugin']['gallery_image_title'] = ! empty( $shortcode_atts['lightbox_image_title'] ) ? ( $shortcode_atts['lightbox_image_title'] === 'global' ? $rl->options['settings']['gallery_image_title'] : $shortcode_atts['lightbox_image_title'] ) : $rl->options['settings']['gallery_image_title'];
921
922	// lightbox image caption
923	$args['settings']['plugin']['gallery_image_caption'] = ! empty( $shortcode_atts['lightbox_image_caption'] ) ? ( $shortcode_atts['lightbox_image_caption'] === 'global' ? $rl->options['settings']['gallery_image_caption'] : $shortcode_atts['lightbox_image_caption'] ) : $rl->options['settings']['gallery_image_caption'];
924
925	// get gallery image link
926	$args['link'] = isset( $shortcode_atts['link'] ) ? $shortcode_atts['link'] : '';
927
928	// copy images
929	$images_tmp = $images;
930
931	// apply adjustments, according to gallery settings
932	foreach ( $images_tmp as $index => $image ) {
933	// assign image
934	$new_image = $images[$index] = array_merge( $image, $rl->galleries->get_gallery_image_src( $image, $shortcode_atts['src_size'], $shortcode_atts['size'] ) );
935
936	// create image source data
937	$args['src'] = [ $new_image['url'], $new_image['width'], $new_image['height'], $new_image ];
938
939	// update image id
940	if ( ! empty( $new_image['id'] ) )
941	$args['image_id'] = $new_image['id'];
942
943	// set alt text
944	$images[$index]['alt'] = $shortcode_atts['alt'] = ! empty( $new_image['alt'] ) ? $new_image['alt'] : ( ! empty( $new_image['id'] ) ? get_post_meta( $new_image['id'], '_wp_attachment_image_alt', true ) : '' );
945
946	// set lightbox image title
947	if ( $args['settings']['plugin']['gallery_image_title'] === 'default' )
948	$images[$index]['title'] = $args['title'] = '';
949	else {
950	// embed element?
951	if ( preg_match( '/^e\d+$/', $new_image['id'] ) === 1 )
952	$shortcode_atts['title'] = $images[$index]['title'] = $args['title'] = $this->get_embed_title( $new_image['id'], apply_filters( 'rl_lightbox_embed_image_title_arg', $args['settings']['plugin']['gallery_image_title'], $images[$index]['link'] ), $new_image );
953	else
954	$images[$index]['title'] = $args['title'] = ! empty( $new_image['id'] ) ? $this->get_attachment_title( $new_image['id'], apply_filters( 'rl_lightbox_attachment_image_title_arg', $args['settings']['plugin']['gallery_image_title'], $new_image['id'], $images[$index]['link'] ) ) : $new_image['title'];
955	}
956
957	// set lightbox image caption
958	if ( $args['settings']['plugin']['gallery_image_caption'] === 'default' )
959	$images[$index]['caption'] = $args['caption'] = '';
960	else {
961	// embed element?
962	if ( preg_match( '/^e\d+$/', $new_image['id'] ) === 1 )
963	$shortcode_atts['caption'] = $images[$index]['caption'] = $args['caption'] = $this->get_embed_title( $new_image['id'], apply_filters( 'rl_lightbox_embed_image_title_arg', $args['settings']['plugin']['gallery_image_caption'], $images[$index]['link'] ), $new_image );
964	else
965	$images[$index]['caption'] = $args['caption'] = ! empty( $new_image['id'] ) ? $this->get_attachment_title( $new_image['id'], apply_filters( 'rl_lightbox_attachment_image_title_arg', $args['settings']['plugin']['gallery_image_caption'], $images[$index]['link'] ) ) : $new_image['caption'];
966	}
967
968	// set image gallery link
969	$images[$index]['link'] = $this->lightbox_gallery_link( $this->get_gallery_image_link( $new_image['id'], $args['src'], [ $new_image['thumbnail_url'], $new_image['thumbnail_width'], $new_image['thumbnail_height'] ], $shortcode_atts ), $args );
970
971	// is lightbox active?
972	if ( isset( $shortcode_atts['lightbox_enable'] ) && $shortcode_atts['lightbox_enable'] === 0 )
973	$images[$index]['link'] = preg_replace( '/\bdata-rel=(["\'])(.*?)\1/', 'data-rel="norl"', $images[$index]['link'], 1 );
974	}
975	}
976
977	return (array) apply_filters( 'rl_get_gallery_shortcode_images', $images, $gallery_id, $shortcode_atts );
978	}
979
980	/**
981	* Get gallery image link.
982	*
983	* @param int $attachment_id Attachment ID
984	* @param array $image Source image data
985	* @param array $thumbnail Thumbnail image data
986	* @param array $args Arguments
987	* @return string
988	*/
989	function get_gallery_image_link( $attachment_id, $image, $thumbnail, $args ) {
990	// link type
991	switch ( $args['link'] ) {
992	case 'post':
993	// embed element?
994	if ( preg_match( '/^e\d+$/', $attachment_id ) === 1 )
995	$attr = [ 'href' => $image[0] ];
996	else
997	$attr = [ 'href' => get_permalink( $attachment_id ) ];
998	break;
999
1000	case 'none':
1001	$attr = [ 'href' => 'javascript:void(0);', 'style' => 'cursor: default;' ];
1002	break;
1003
1004	default:
1005	case 'file':
1006	$attr = [ 'href' => $image[0] ];
1007	}
1008
1009	// filter attributes
1010	$attr = apply_filters( 'rl_gallery_image_link_attributes', $attr, $attachment_id, $image, $args );
1011
1012	// start link
1013	$link = '<a';
1014
1015	// escape attributes
1016	foreach ( $attr as $name => $value ) {
1017	$link .= ' ' . esc_attr( $name ) . '="' . ( $name === 'href' ? esc_url( $value ) : esc_attr( $value ) ) . '"';
1018	}
1019
1020	$link .= '>';
1021	$link .= apply_filters( 'rl_gallery_image_link_before', '', $attachment_id, $args );
1022	$link .= '<img src="' . esc_url( $thumbnail[0] ) . '" width="' . (int) $thumbnail[1] . '" height="' . (int) $thumbnail[2] . '" alt="' . esc_attr( $args['alt'] ) . '"' . ( isset( $args['hide_image'] ) && $args['hide_image'] ? ' style="display: none;"' : '' ) . '/>';
1023
1024	// embed element?
1025	if ( preg_match( '/^e\d+$/', $attachment_id ) === 1 ) {
1026	$title = ! empty( $args['design_show_title'] ) ? $this->get_embed_title( $attachment_id, $args['design_show_title'], $args ) : '';
1027	$caption = ! empty( $args['design_show_caption'] ) ? $this->get_embed_title( $attachment_id, $args['design_show_caption'], $args ) : '';
1028	} else {
1029	$title = ! empty( $args['design_show_title'] ) ? $this->get_attachment_title( $attachment_id, $args['design_show_title'] ) : '';
1030	$caption = ! empty( $args['design_show_caption'] ) ? $this->get_attachment_title( $attachment_id, $args['design_show_caption'] ) : '';
1031	}
1032
1033	if ( $title \|\| $caption ) {
1034	$link .= '<span class="rl-gallery-caption">';
1035
1036	if ( $title )
1037	$link .= '<span class="rl-gallery-item-title">' . esc_html( $title ) . '</span>';
1038
1039	if ( $caption )
1040	$link .= '<span class="rl-gallery-item-caption">' . esc_html( $caption ) . '</span>';
1041
1042	$link .= '</span>';
1043	}
1044
1045	$link .= apply_filters( 'rl_gallery_image_link_after', '', $attachment_id, $args );
1046	$link .= '</a>';
1047
1048	return apply_filters( 'rl_gallery_image_link', $link, $attachment_id, $image, $thumbnail, $args );
1049	}
1050
1051	/**
1052	* Add lightbox to Jetpack tiled gallery.
1053	*
1054	* @param string $content
1055	* @return string
1056	*/
1057	public function force_custom_gallery_lightbox( $content ) {
1058	// get main instance
1059	$rl = Responsive_Lightbox();
1060
1061	if ( $rl->options['settings']['force_custom_gallery'] ) {
1062	// search for image links
1063	preg_match_all( '/<a(.?)\bhref=(["\'])([^"\']?)\.(bmp\|gif\|jpeg\|jpg\|png\|webp)((?:[?#][^"\']?)?)\2(.?)>/i', $content, $links );
1064
1065	// found any links?
1066	if ( ! empty ( $links[0] ) ) {
1067	// get current script
1068	$script = $rl->get_data( 'current_script' );
1069
1070	foreach ( $links[0] as $link_number => $link ) {
1071	// get attachment id
1072	$image_id = $this->get_attachment_id_by_url( $links[3][$link_number] . '.' . $links[4][$link_number] );
1073
1074	// get title type
1075	$title_arg = $rl->options['settings']['gallery_image_title'];
1076
1077	// update title if needed
1078	if ( $title_arg !== 'default' && $image_id )
1079	$title = wp_strip_all_tags( $this->get_attachment_title( $image_id, apply_filters( 'rl_lightbox_attachment_image_title_arg', $title_arg, $image_id, $links[3][$link_number] . '.' . $links[4][$link_number] ) ), true );
1080	else
1081	$title = '';
1082
1083	// get caption type
1084	$caption_arg = $rl->options['settings']['gallery_image_caption'];
1085
1086	// update caption if needed
1087	if ( $caption_arg !== 'default' )
1088	$caption = wp_strip_all_tags( $this->get_attachment_title( $image_id, apply_filters( 'rl_lightbox_attachment_image_title_arg', $caption_arg, $image_id, $links[3][$link_number] . '.' . $links[4][$link_number] ) ), true );
1089	else
1090	$caption = '';
1091
1092	// link already contains data-rel attribute?
1093	if ( preg_match( '/<a[^>]?\bdata-rel=(["\'])(.?)\1[^>]*?>/i', $link, $result ) === 1 ) {
1094	// do not modify this link
1095	if ( $result[2] === 'norl' )
1096	continue;
1097
1098	$content = str_replace( $link, preg_replace( '/\bdata-rel=(["\'])(.*?)\1/', 'data-rel="' . esc_attr( $rl->options['settings']['selector'] ) . '-gallery-' . esc_attr( base64_encode( sanitize_text_field( $result[2] ) ) ) . '" data-rl_title="' . esc_attr( $title ) . '" data-rl_caption="' . esc_attr( $caption ) . '"' . ( $script === 'imagelightbox' ? ' data-imagelightbox="' . (int) $link_number . '"' : '' ), $link, 1 ), $content );
1099	} elseif ( preg_match( '/<a[^>]?\brel=(["\'])(.?)\1[^>]*?>/i', $link, $result ) === 1 ) {
1100	// do not modify this link
1101	if ( $result[2] === 'norl' )
1102	continue;
1103
1104	$content = str_replace( $link, preg_replace( '/\brel=(["\'])(.*?)\1/', 'data-rel="' . esc_attr( $rl->options['settings']['selector'] ) . '-gallery-' . esc_attr( base64_encode( sanitize_text_field( $result[2] ) ) ) . '" data-rl_title="' . esc_attr( $title ) . '" data-rl_caption="' . esc_attr( $caption ) . '"' . ( $script === 'imagelightbox' ? ' data-imagelightbox="' . (int) $link_number . '"' : '' ), $link, 1 ), $content );
1105	} else
1106	$content = str_replace( $link, '<a' . $links[1][$link_number] . ' href="' . $links[3][$link_number] . '.' . $links[4][$link_number] . $links[5][$link_number] . '" data-rel="' . esc_attr( $rl->options['settings']['selector'] ) . '-gallery-' . esc_attr( base64_encode( $this->gallery_no ) ) . '" data-rl_title="' . esc_attr( $title ) . '" data-rl_caption="' . esc_attr( $caption ) . '"' . ( $script === 'imagelightbox' ? ' data-imagelightbox="' . (int) $link_number . '"' : '' ) . $links[6][$link_number] . '>', $content );
1107	}
1108	}
1109	}
1110
1111	return $content;
1112	}
1113
1114	/**
1115	* Remove specific styles and scripts.
1116	*
1117	* @global object $woocommerce
1118	*
1119	* @return void
1120	*/
1121	public function wp_dequeue_scripts() {
1122	// woocommerce
1123	if ( class_exists( 'WooCommerce' ) ) {
1124	global $woocommerce;
1125
1126	// get main instance
1127	$rl = Responsive_Lightbox();
1128
1129	// specific woocommerce gallery?
1130	if ( ! empty( $rl->options['settings']['default_woocommerce_gallery'] ) && $rl->options['settings']['default_woocommerce_gallery'] !== 'default' ) {
1131	// replace default woocommerce lightbox?
1132	if ( $rl->options['settings']['woocommerce_gallery_lightbox'] === true ) {
1133	if ( version_compare( $woocommerce->version, '3.0', ">=" ) ) {
1134	// dequeue scripts
1135	wp_dequeue_script( 'flexslider' );
1136	wp_dequeue_script( 'photoswipe' );
1137	wp_dequeue_script( 'photoswipe-ui-default' );
1138
1139	// dequeue styles
1140	wp_dequeue_style( 'photoswipe' );
1141	wp_dequeue_style( 'photoswipe-default-skin' );
1142
1143	// remove theme supports
1144	remove_theme_support( 'wc-product-gallery-lightbox' );
1145	remove_theme_support( 'wc-product-gallery-slider' );
1146	} else {
1147	// remove styles
1148	wp_dequeue_style( 'woocommerce_prettyPhoto_css' );
1149
1150	// remove scripts
1151	wp_dequeue_script( 'prettyPhoto' );
1152	wp_dequeue_script( 'prettyPhoto-init' );
1153	wp_dequeue_script( 'enable-lightbox' );
1154	}
1155	} else {
1156	if ( version_compare( $woocommerce->version, '3.0', ">=" ) ) {
1157	// dequeue scripts
1158	wp_dequeue_script( 'flexslider' );
1159	}
1160	}
1161	// default gallery?
1162	} else {
1163	// replace default woocommerce lightbox?
1164	if ( $rl->options['settings']['woocommerce_gallery_lightbox'] === true ) {
1165	if ( version_compare( $woocommerce->version, '3.0', ">=" ) ) {
1166	// dequeue scripts
1167	wp_dequeue_script( 'photoswipe' );
1168	wp_dequeue_script( 'photoswipe-ui-default' );
1169
1170	// dequeue styles
1171	wp_dequeue_style( 'photoswipe' );
1172	wp_dequeue_style( 'photoswipe-default-skin' );
1173
1174	// remove theme supports
1175	remove_theme_support( 'wc-product-gallery-lightbox' );
1176	} else {
1177	// remove styles
1178	wp_dequeue_style( 'woocommerce_prettyPhoto_css' );
1179
1180	// remove scripts
1181	wp_dequeue_script( 'prettyPhoto' );
1182	wp_dequeue_script( 'prettyPhoto-init' );
1183	wp_dequeue_script( 'enable-lightbox' );
1184	}
1185	}
1186	}
1187	}
1188
1189	// visual composer
1190	if ( class_exists( 'Vc_Manager' ) ) {
1191	wp_dequeue_script( 'prettyphoto' );
1192	wp_deregister_script( 'prettyphoto' );
1193	wp_dequeue_style( 'prettyphoto' );
1194	wp_deregister_style( 'prettyphoto' );
1195	}
1196	}
1197
1198	/**
1199	* Apply lightbox to WooCommerce product image.
1200	*
1201	* @param string $html
1202	* @return string
1203	*/
1204	public function woocommerce_single_product_image_html( $html ) {
1205	// get main instance
1206	$rl = Responsive_Lightbox();
1207
1208	if ( $rl->options['settings']['woocommerce_gallery_lightbox'] )
1209	$html = preg_replace( '/data-rel=\"(.*?)\"/', 'data-rel="' . esc_attr( $rl->options['settings']['selector'] ) . '-gallery-' . (int) $this->gallery_no . '"', $html );
1210
1211	return $html;
1212	}
1213
1214	/**
1215	* Apply lightbox to WooCommerce product gallery.
1216	*
1217	* @param string $html
1218	* @param int $attachment_id
1219	* @return string
1220	*/
1221	public function woocommerce_single_product_image_thumbnail_html( $html, $attachment_id ) {
1222	// get main instance
1223	$rl = Responsive_Lightbox();
1224
1225	if ( $rl->options['settings']['woocommerce_gallery_lightbox'] ) {
1226	// make sure main product image has same gallery number
1227	$gallery_no = $this->gallery_no + 1;
1228
1229	$html = preg_replace( '/data-rel=\"(.*?)\"/', 'data-rel="' . esc_attr( $rl->options['settings']['selector'] ) . '-gallery-' . (int) $gallery_no . '"', $html );
1230
1231	preg_match( '/<a(.?)((?:data-rel)=(?:\'\|").?(?:\'\|"))(.*?)>/i', $html, $result );
1232
1233	// no data-rel?
1234	if ( empty( $result ) ) {
1235	preg_match( '/^(.?)<a(.?)((?:href)=(?:\'\|").?(?:\'\|"))(.?)>(.*?)$/i', $html, $result );
1236
1237	// found valid link?
1238	if ( ! empty( $result ) )
1239	$html = $result[1] . '<a' . $result[2] . 'data-rel="' . esc_attr( $rl->options['settings']['selector'] ) . '-gallery-' . (int) $gallery_no . '" ' . $result[3] . $result[4] . '>' . $result[5];
1240	}
1241
1242	$html = $this->woocommerce_gallery_link( $html, $attachment_id );
1243	}
1244
1245	return $html;
1246	}
1247
1248	/**
1249	* Add title and caption to WooCommerce gallery image links.
1250	*
1251	* @param string $link
1252	* @param int $attachment_id
1253	* @return string
1254	*/
1255	public function woocommerce_gallery_link( $link, $attachment_id ) {
1256	// get main instance
1257	$rl = Responsive_Lightbox();
1258
1259	// gallery image title
1260	$title = '';
1261
1262	// get title type
1263	$title_arg = $rl->options['settings']['gallery_image_title'];
1264
1265	// update title if needed
1266	if ( $title_arg !== 'default' ) {
1267	// original title
1268	$title = $this->get_attachment_title( $attachment_id, apply_filters( 'rl_lightbox_attachment_image_title_arg', $title_arg, $attachment_id, $link ) );
1269	}
1270
1271	if ( $title !== '' ) {
1272	// title
1273	$title = trim( nl2br( $title ) );
1274
1275	if ( ! rl_current_lightbox_supports( 'html_caption' ) )
1276	$title = wp_strip_all_tags( $title, true );
1277
1278	// add title and rl_title if needed
1279	if ( preg_match( '/<a[^>]?title=(?:\'\|")[^>]?(?:\'\|").*?>/is', $link ) === 1 )
1280	$link = str_replace( '__RL_IMAGE_TITLE__', esc_attr( $title ), preg_replace( '/(<a[^>]?title=(?:\'\|"))[^>]?((?:\'\|").*?>)/is', '$1__RL_IMAGE_TITLE__" data-rl_title="__RL_IMAGE_TITLE__$2', $link ) );
1281	else
1282	$link = str_replace( '__RL_IMAGE_TITLE__', esc_attr( $title ), preg_replace( '/(<a[^>]*?)>/is', '$1 title="__RL_IMAGE_TITLE__" data-rl_title="__RL_IMAGE_TITLE__">', $link ) );
1283	}
1284
1285	// gallery image caption
1286	$caption = '';
1287
1288	// get caption type
1289	$caption_arg = $rl->options['settings']['gallery_image_caption'];
1290
1291	// update caption if needed
1292	if ( $caption_arg !== 'default' ) {
1293	// original caption
1294	$caption = $this->get_attachment_title( $attachment_id, apply_filters( 'rl_lightbox_attachment_image_title_arg', $caption_arg, $attachment_id, $link ) );
1295	}
1296
1297	if ( $caption !== '' ) {
1298	// caption
1299	$caption = trim( nl2br( $caption ) );
1300
1301	if ( ! rl_current_lightbox_supports( 'html_caption' ) )
1302	$caption = wp_strip_all_tags( $caption, true );
1303
1304	// add rl_caption
1305	$link = str_replace( '__RL_IMAGE_CAPTION__', esc_attr( $caption ), preg_replace( '/(<a[^>]*?)>/is', '$1 data-rl_caption="__RL_IMAGE_CAPTION__">', $link ) );
1306	}
1307
1308	if ( $rl->get_data( 'current_script' ) === 'magnific' )
1309	$link = preg_replace( '/(<a[^>]*?)>/is', '$1 data-magnific_type="gallery">', $link );
1310
1311	return $link;
1312	}
1313
1314	/**
1315	* WooCommerce gallery init.
1316	*
1317	* @return void
1318	*/
1319	public function woocommerce_gallery_init() {
1320	// get main instance
1321	$rl = Responsive_Lightbox();
1322
1323	if ( ( $priority = has_action( 'woocommerce_product_thumbnails', 'woocommerce_show_product_thumbnails' ) ) !== false && ! empty( $rl->options['settings']['default_woocommerce_gallery'] ) && $rl->options['settings']['default_woocommerce_gallery'] !== 'default' ) {
1324	// remove default gallery
1325	remove_action( 'woocommerce_product_thumbnails', 'woocommerce_show_product_thumbnails', $priority );
1326
1327	// handle product gallery
1328	add_action( 'woocommerce_product_thumbnails', [ $this, 'woocommerce_gallery' ], $priority );
1329	}
1330	}
1331
1332	/**
1333	* WooCommerce gallery support.
1334	*
1335	* @global object $product
1336	*
1337	* @return void
1338	*/
1339	public function woocommerce_gallery() {
1340	global $product;
1341
1342	$attachment_ids = [];
1343
1344	// woocommerce 3.x
1345	if ( method_exists( $product, 'get_gallery_image_ids' ) )
1346	$attachment_ids = $product->get_gallery_image_ids();
1347	// woocommerce 2.x
1348	elseif ( method_exists( $product, 'get_gallery_attachment_ids' ) )
1349	$attachment_ids = $product->get_gallery_attachment_ids();
1350
1351	if ( ! empty( $attachment_ids ) && is_array( $attachment_ids ) )
1352	echo do_shortcode( '[gallery type="' . esc_attr( Responsive_Lightbox()->options['settings']['default_woocommerce_gallery'] ) . '" size="medium" ids="' . esc_attr( implode( ',', $attachment_ids ) ) . '"]' );
1353	}
1354
1355	/**
1356	* Get embed text.
1357	*
1358	* @param string $id
1359	* @param string $title_arg
1360	* @param array $embed
1361	* @return false\|string
1362	*/
1363	public function get_embed_title( $id, $title_arg, $embed ) {
1364	if ( empty( $title_arg ) \|\| empty( $id ) )
1365	return false;
1366
1367	switch( $title_arg ) {
1368	case 'title':
1369	$text = $embed['title'];
1370	break;
1371
1372	// caption is always the same for these options
1373	case 'caption':
1374	case 'alt':
1375	case 'description':
1376	$text = $embed['caption'];
1377	break;
1378
1379	default:
1380	$text = '';
1381	}
1382
1383	return trim( apply_filters( 'rl_get_embed_title', $text, $id, $title_arg, $embed ) );
1384	}
1385
1386	/**
1387	* Get attachment text.
1388	*
1389	* @param int $id
1390	* @param string $title_arg
1391	* @return false\|string
1392	*/
1393	public function get_attachment_title( $id, $title_arg ) {
1394	if ( empty( $title_arg ) \|\| empty( $id ) )
1395	return false;
1396
1397	switch( $title_arg ) {
1398	case 'title':
1399	$text = get_the_title( $id );
1400	break;
1401
1402	case 'caption':
1403	$text = get_post_field( 'post_excerpt', $id ) ;
1404	break;
1405
1406	case 'alt':
1407	$text = get_post_meta( $id, '_wp_attachment_image_alt', true );
1408	break;
1409
1410	case 'description':
1411	$text = get_post_field( 'post_content', $id ) ;
1412	break;
1413
1414	default:
1415	$text = '';
1416	}
1417
1418	return trim( apply_filters( 'rl_get_attachment_title', $text, $id, $title_arg ) );
1419	}
1420
1421	/**
1422	* Get attachment ID by url, adjusted to work for cropped and scaled images.
1423	*
1424	* @param string $url
1425	* @return int
1426	*/
1427	public function get_attachment_id_by_url( $url ) {
1428	$org_url = $url;
1429
1430	// parse url
1431	$url = ! empty( $url ) ? esc_url_raw( $url ) : '';
1432
1433	// get url with both schemes
1434	$url_http = set_url_scheme( $url, 'http' );
1435	$url_https = set_url_scheme( $url, 'https' );
1436
1437	// https? set scheme order
1438	if ( is_ssl() )
1439	$urls = [ $url_https, $url_http ];
1440	else
1441	$urls = [ $url_http, $url_https ];
1442
1443	// get upload dir
1444	$dir = wp_get_upload_dir();
1445
1446	// set base url
1447	$base_url = $dir['baseurl'];
1448
1449	if ( is_ssl() )
1450	$base_url = set_url_scheme( $base_url, 'https' );
1451
1452	// set post id
1453	$post_id = 0;
1454
1455	// get cached data
1456	$post_ids = get_transient( 'rl-attachment_ids_by_url' );
1457
1458	// set default flag
1459	$update_transient = false;
1460
1461	// check url with forced scheme based on is_ssl(), then fallback to second one
1462	foreach ( $urls as $url_with_scheme ) {
1463	// set current url
1464	$url = $url_with_scheme;
1465
1466	// cached url not found?
1467	if ( $post_ids === false \|\| ! in_array( $url_with_scheme, array_keys( $post_ids ), true ) ) {
1468	// try to get post id
1469	$post_id = $this->_get_attachment_id_by_url( $url_with_scheme, $base_url );
1470
1471	// set flag
1472	$update_transient = true;
1473	// cached url found
1474	} elseif ( ! empty( $post_ids[$url_with_scheme] ) )
1475	$post_id = (int) $post_ids[$url_with_scheme];
1476	// found post id but it is zero
1477	else {
1478	// try to refresh post id
1479	$post_id = $this->_get_attachment_id_by_url( $url_with_scheme, $base_url );
1480
1481	// set flag
1482	$update_transient = true;
1483	}
1484
1485	if ( $post_id )
1486	break;
1487
1488	// set default flag
1489	$update_transient = false;
1490	}
1491
1492	if ( $update_transient ) {
1493	// set the cache expiration, 24 hours by default
1494	$expire = (int) apply_filters( 'rl_object_cache_expire', DAY_IN_SECONDS );
1495
1496	if ( ! is_array( $post_ids ) )
1497	$post_ids = [];
1498
1499	// update post ids
1500	$post_ids[$url] = $post_id;
1501
1502	// set transient
1503	set_transient( 'rl-attachment_ids_by_url', $post_ids, $expire );
1504	}
1505
1506	return (int) apply_filters( 'rl_get_attachment_id_by_url', $post_id, $org_url );
1507	}
1508
1509	/**
1510	* Get attachment ID by url.
1511	*
1512	* @param string $url
1513	* @param string $base_url
1514	* @return int
1515	*/
1516	private function _get_attachment_id_by_url( $url, $base_url ) {
1517	// try to get post id
1518	$post_id = (int) attachment_url_to_postid( $url );
1519
1520	// no post id?
1521	if ( ! $post_id ) {
1522	$path = $url;
1523
1524	if ( strpos( $path, $base_url . '/' ) === 0 )
1525	$path = substr( $path, strlen( $base_url . '/' ) );
1526
1527	// try to check full size image
1528	if ( preg_match( '/^(.)(\-\dx\d*)(\.\w{1,})/i', $path, $matches ) )
1529	$post_id = (int) attachment_url_to_postid( $base_url . '/' . $matches[1] . $matches[3] );
1530
1531	// try to check scaled size image
1532	if ( ! $post_id && ! empty( $matches[1] ) && ! empty( $matches[3] ) )
1533	$post_id = (int) attachment_url_to_postid( $base_url . '/' . $matches[1] . '-scaled' . $matches[3] );
1534	}
1535
1536	return $post_id;
1537	}
1538
1539	/**
1540	* Get image size by URL.
1541	*
1542	* @param string $url Image URL
1543	* @return array
1544	*/
1545	public function get_image_size_by_url( $url ) {
1546	$size = [ 0, 0 ];
1547	$sanitized_url = $this->sanitize_remote_image_url( $url );
1548
1549	if ( empty( $sanitized_url ) )
1550	return (array) apply_filters( 'rl_get_image_size_by_url', $size, $sanitized_url );
1551
1552	$url = $sanitized_url;
1553
1554	$image_sizes = get_transient( 'rl-image_sizes_by_url' );
1555
1556	if ( ! is_array( $image_sizes ) )
1557	$image_sizes = [];
1558
1559	if ( isset( $image_sizes[$url] ) && is_array( $image_sizes[$url] ) ) {
1560	$size = array_map( 'absint', $image_sizes[$url] );
1561	} else {
1562	$size = $this->remote_image_size_lookup( $url );
1563
1564	if ( $size[0] > 0 && $size[1] > 0 ) {
1565	$image_sizes[$url] = $size;
1566	$expire = absint( apply_filters( 'rl_object_cache_expire', DAY_IN_SECONDS ) );
1567	set_transient( 'rl-image_sizes_by_url', $image_sizes, $expire );
1568	}
1569	}
1570
1571	return (array) apply_filters( 'rl_get_image_size_by_url', $size, $url );
1572	}
1573
1574	/**
1575	* Sanitize and validate a remote image URL.
1576	*
1577	* @param string $url
1578	* @return string
1579	*/
1580	public function sanitize_remote_image_url( $url ) {
1581	$url = ! empty( $url ) ? esc_url_raw( $url ) : '';
1582
1583	if ( empty( $url ) )
1584	return '';
1585
1586	$validated_url = wp_http_validate_url( $url );
1587
1588	if ( ! $validated_url )
1589	return '';
1590
1591	$is_allowed = $this->is_remote_image_url_allowed( $validated_url );
1592	$is_allowed = apply_filters( 'rl_is_remote_image_url_allowed', $is_allowed, $validated_url );
1593
1594	return $is_allowed ? $validated_url : '';
1595	}
1596
1597	/**
1598	* Add gallery shortcode to gallery post content.
1599	*
1600	* @param string $content
1601	* @return string
1602	*/
1603	public function gallery_preview( $content ) {
1604	if ( get_post_type() === 'rl_gallery' && ! ( is_archive() && is_main_query() ) )
1605	$content .= do_shortcode( '[rl_gallery id="' . (int) get_the_ID() . '"]' );
1606
1607	return $content;
1608	}
1609
1610	/**
1611	* Helper: gallery number function.
1612	*
1613	* @param string $content
1614	* @param array $shortcode_atts
1615	* @return string
1616	*/
1617	public function gallery_attributes( $content, $shortcode_atts ) {
1618	// private gallery?
1619	if ( isset( $shortcode_atts['rl_gallery_id'] ) && get_post_status( $shortcode_atts['rl_gallery_id'] ) === 'private' && ! current_user_can( 'read_private_posts' ) )
1620	return '';
1621
1622	// check forced gallery number
1623	if ( isset( $shortcode_atts['rl_gallery_no'] ) ) {
1624	$shortcode_atts['rl_gallery_no'] = (int) $shortcode_atts['rl_gallery_no'];
1625
1626	if ( $shortcode_atts['rl_gallery_no'] > 0 )
1627	$this->gallery_no = $shortcode_atts['rl_gallery_no'];
1628	} else
1629	++$this->gallery_no;
1630
1631	// add inline style, to our galleries only
1632	if ( isset( $shortcode_atts['type'] ) ) {
1633	// get main instance
1634	$rl = Responsive_Lightbox();
1635
1636	// gallery style
1637	wp_enqueue_style( 'responsive-lightbox-gallery' );
1638	wp_enqueue_style( 'responsive-lightbox-gallery-inline' );
1639
1640	// is there rl_gallery ID?
1641	$rl_gallery_id = ! empty( $shortcode_atts['rl_gallery_id'] ) ? (int) $shortcode_atts['rl_gallery_id'] : 0;
1642
1643	// is it rl gallery?
1644	$rl_gallery = $rl->options['builder']['gallery_builder'] && $rl_gallery_id && get_post_type( $rl_gallery_id ) === 'rl_gallery';
1645
1646	// is it rl gallery? add design options
1647	if ( $rl_gallery ) {
1648	$gallery_no = $this->gallery_no;
1649
1650	// get fields
1651	$fields = $rl->galleries->get_data( 'fields' );
1652
1653	// get gallery fields attributes
1654	$field_atts = rl_get_gallery_fields_atts( $fields['design']['options'], $shortcode_atts, $rl_gallery );
1655
1656	// get only valid arguments
1657	$atts = shortcode_atts( $field_atts, array_merge( $field_atts, $shortcode_atts ), 'gallery' );
1658
1659	// sanitize gallery fields
1660	$atts = $this->sanitize_shortcode_args( $atts, $fields['design']['options'] );
1661
1662	// convert color
1663	$background_color = $rl->hex2rgb( $atts['background_color'] );
1664
1665	// invalid color?
1666	if ( ! $background_color )
1667	$background_color = '0,0,0';
1668	else
1669	$background_color = implode( ',', $background_color );
1670
1671	// get opacity
1672	$opacity = (string) round( $atts['background_opacity'] / 100, 2 );
1673
1674	// prepare style data
1675	$style_data = '
1676	#rl-gallery-container-' . $gallery_no . ' .rl-gallery .rl-gallery-link {
1677	border: ' . (int) $atts['border_width'] . 'px solid ' . esc_attr( $atts['border_color'] ) . ';
1678	}
1679	#rl-gallery-container-' . $gallery_no . ' .rl-gallery .rl-gallery-link .rl-gallery-item-title {
1680	color: ' . esc_attr( $atts['title_color'] ) . ';
1681	}
1682	#rl-gallery-container-' . $gallery_no . ' .rl-gallery .rl-gallery-link .rl-gallery-item-caption {
1683	color: ' . esc_attr( $atts['caption_color'] ) . ';
1684	}
1685	#rl-gallery-container-' . $gallery_no . ' .rl-gallery .rl-gallery-link .rl-gallery-caption {
1686	font-size: ' . absint( $atts['caption_font_size'] ) . 'px;
1687	padding: ' . absint( $atts['caption_padding'] ) . 'px;
1688	}
1689	#rl-gallery-container-' . $gallery_no . ' .rl-gallery .rl-gallery-link .rl-gallery-caption,
1690	#rl-gallery-container-' . $gallery_no . ' .rl-gallery .rl-gallery-link:after {
1691	background-color: rgba( ' . esc_attr( $background_color ) . ', ' . esc_attr( $opacity ) . ' );
1692	}
1693	#rl-gallery-container-' . $gallery_no . ' [class^="rl-hover-icon-"] .rl-gallery-link:before,
1694	#rl-gallery-container-' . $gallery_no . ' [class*=" rl-hover-icon-"] .rl-gallery-link:before {
1695	color: ' . esc_attr( $atts['title_color'] ) . ';
1696	background-color: rgba( ' . esc_attr( $background_color ) . ', ' . esc_attr( $opacity ) . ' );
1697	}';
1698
1699	// load style data
1700	$style_loaded = wp_add_inline_style( 'responsive-lightbox-gallery-inline', $style_data );
1701
1702	if ( ! $style_loaded )
1703	$this->style_data['gallery'] .= $style_data;
1704	}
1705	}
1706
1707	return $content;
1708	}
1709
1710	/**
1711	* Generate unique hash.
1712	*
1713	* @param int $length
1714	* @return string
1715	*/
1716	private function generate_hash( $length = 8 ) {
1717	$chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789';
1718	$hash = '';
1719
1720	for( $i = 0; $i < $length; $i++ ) {
1721	$hash .= substr( $chars, mt_rand( 0, strlen( $chars ) - 1 ), 1 );
1722	}
1723
1724	return $hash;
1725	}
1726
1727	/**
1728	* Replace widget callback function.
1729	*
1730	* @global array $wp_registered_widgets
1731	*
1732	* @param array $sidebar_params
1733	* @return array
1734	*/
1735	public function dynamic_sidebar_params( $sidebar_params ) {
1736	if ( ( is_admin() && ! wp_doing_ajax() ) \|\| Responsive_Lightbox()->options['settings']['widgets'] !== true )
1737	return $sidebar_params;
1738
1739	global $wp_registered_widgets;
1740
1741	$widget_id = $sidebar_params[0]['widget_id'];
1742	$wp_registered_widgets[ $widget_id ]['original_callback'] = $wp_registered_widgets[ $widget_id ]['callback'];
1743	$wp_registered_widgets[ $widget_id ]['callback'] = [ $this, 'widget_callback_function' ];
1744
1745	return $sidebar_params;
1746	}
1747
1748	/**
1749	* Widget callback function.
1750	*
1751	* @global array $wp_registered_widgets
1752	*
1753	* @return void
1754	*/
1755	public function widget_callback_function() {
1756	global $wp_registered_widgets;
1757
1758	$original_callback_params = func_get_args();
1759	$widget_id = $original_callback_params[0]['widget_id'];
1760	$original_callback = $wp_registered_widgets[ $widget_id ]['original_callback'];
1761	$wp_registered_widgets[ $widget_id ]['callback'] = $original_callback;
1762	$widget_id_base = $wp_registered_widgets[ $widget_id ]['callback'][0]->id_base;
1763
1764	if ( is_callable( $original_callback ) ) {
1765	ob_start();
1766
1767	call_user_func_array( $original_callback, $original_callback_params );
1768
1769	$widget_output = ob_get_clean();
1770
1771	echo apply_filters( 'rl_widget_output', $widget_output, $widget_id_base, $widget_id );
1772	}
1773	}
1774
1775	/**
1776	* Filter widget output.
1777	*
1778	* @param string $content
1779	* @param string $widget_id_base
1780	* @param id $widget_id
1781	* @return string
1782	*/
1783	public function widget_output( $content, $widget_id_base, $widget_id ) {
1784	if ( ( is_admin() && ! wp_doing_ajax() ) \|\| Responsive_Lightbox()->options['settings']['widgets'] !== true )
1785	return $content;
1786
1787	// Widgets can contain valid form controls and inline scripts (e.g. core Archives dropdown handlers).
1788	// Reuse the pre-2.7.4 behavior and only apply lightbox rewriting.
1789	return $this->add_lightbox( $content );
1790	}
1791
1792	/**
1793	* Get allowed HTML tags/attributes for filtered comment content.
1794	*
1795	* @return array
1796	*/
1797	private function get_comment_lightbox_allowed_html() {
1798	static $allowed = null;
1799
1800	if ( $allowed !== null )
1801	return $allowed;
1802
1803	$allowed = wp_kses_allowed_html( 'post' );
1804
1805	if ( ! is_array( $allowed ) )
1806	$allowed = [];
1807
1808	if ( ! isset( $allowed['a'] ) \|\| ! is_array( $allowed['a'] ) )
1809	$allowed['a'] = [];
1810
1811	foreach ( [ 'data-rel', 'data-rl_title', 'data-rl_caption', 'data-magnific_type', 'data-imagelightbox', 'data-lightbox-type', 'data-featherlight' ] as $attr )
1812	$allowed['a'][$attr] = true;
1813
1814	return $allowed;
1815	}
1816
1817	/**
1818	* Filter comment content.
1819	*
1820	* @param string $content
1821	* @return string
1822	*/
1823	public function get_comment_text( $content ) {
1824	if ( ( is_admin() && ! wp_doing_ajax() ) \|\| Responsive_Lightbox()->options['settings']['comments'] !== true )
1825	return $content;
1826
1827	return wp_kses( $this->add_lightbox( $content ), $this->get_comment_lightbox_allowed_html() );
1828	}
1829
1830	/**
1831	* Modify gallery container class.
1832	*
1833	* @param string $class
1834	* @param array $args
1835	* @param int $gallery_id
1836	* @return string
1837	*/
1838	public function gallery_container_class( $class, $args, $gallery_id ) {
1839	if ( $gallery_id ) {
1840	$class .= ' rl-loading';
1841
1842	if ( $args['pagination'] )
1843	$class .= ' rl-pagination-' . $args['pagination_type'];
1844	}
1845
1846	return $class;
1847	}
1848
1849	/**
1850	* Display content before the gallery.
1851	*
1852	* @param array $args
1853	* @param int $gallery_id
1854	* @return void
1855	*/
1856	public function before_gallery( $args, $gallery_id ) {
1857	if ( $gallery_id ) {
1858	// get current post id
1859	if ( isset( $_POST['action'], $_POST['post_id'] ) && $_POST['action'] === 'rl-get-gallery-page-content' && wp_doing_ajax() )
1860	$current_id = (int) $_POST['post_id'];
1861	else
1862	$current_id = (int) get_the_ID();
1863
1864	if ( isset( $args['gallery_title_position'] ) && $args['gallery_title_position'] === 'top' && get_post_type( $current_id ) )
1865	echo '<h4 class="rl-gallery-title">' . esc_html( get_the_title( $gallery_id ) ) . '</h4>';
1866
1867	if ( isset( $args['gallery_description_position'] ) && $args['gallery_description_position'] === 'top' )
1868	echo '<div class="rl-gallery-description">' . nl2br( esc_html( $args['gallery_description'] ) ) . '</div>';
1869	}
1870	}
1871
1872	/**
1873	* Display content after the gallery.
1874	*
1875	* @param array $args
1876	* @param int $gallery_id
1877	* @return void
1878	*/
1879	public function after_gallery( $args, $gallery_id ) {
1880	if ( $gallery_id ) {
1881	// get current post id
1882	if ( isset( $_POST['action'], $_POST['post_id'] ) && $_POST['action'] === 'rl-get-gallery-page-content' && wp_doing_ajax() )
1883	$current_id = (int) $_POST['post_id'];
1884	else
1885	$current_id = (int) get_the_ID();
1886
1887	if ( isset( $args['gallery_title_position'] ) && $args['gallery_title_position'] === 'bottom' )
1888	echo '<h4 class="rl-gallery-title">' . esc_html( get_the_title( $gallery_id ) ) . '</h4>';
1889
1890	if ( isset( $args['gallery_description_position'] ) && $args['gallery_description_position'] === 'bottom' )
1891	echo '<div class="rl-gallery-description">' . nl2br( esc_html( $args['gallery_description'] ) ) . '</div>';
1892	}
1893	}
1894
1895	/**
1896	* Add lightbox to Visual Composer shortcodes.
1897	*
1898	* @param string $content HTML content
1899	* @param string $shortcode Shortcode type
1900	* @return string
1901	*/
1902	public function vc_shortcode_content_filter_after( $content, $shortcode ) {
1903	if ( in_array( $shortcode, apply_filters( 'rl_lightbox_vc_allowed_shortcode', [ 'vc_gallery', 'vc_single_image', 'vc_images_carousel' ] ), true ) )
1904	$content = $this->add_lightbox( $content );
1905
1906	return $content;
1907	}
1908
1909	/**
1910	* Render Basic Grid gallery shortcode.
1911	*
1912	* @global object $post
1913	*
1914	* @param string $output HTML output
1915	* @param array $shortcode_atts Shortcode attributes
1916	* @return string
1917	*/
1918	public function basic_grid_gallery_shortcode( $output, $shortcode_atts ) {
1919	if ( ! empty( $output ) )
1920	return $output;
1921
1922	global $post;
1923
1924	$defaults = [
1925	'rl_gallery_id' => 0,
1926	'id' => isset( $post->ID ) ? (int) $post->ID : 0,
1927	'class' => '',
1928	'include' => '',
1929	'exclude' => '',
1930	'urls' => '',
1931	'type' => '',
1932	'order' => 'asc',
1933	'orderby' => 'menu_order',
1934	'size' => 'medium',
1935	'link' => 'file',
1936	'columns' => 3
1937	];
1938
1939	// get main instance
1940	$rl = Responsive_Lightbox();
1941
1942	if ( ! is_array( $shortcode_atts ) )
1943	$shortcode_atts = wp_parse_args( $shortcode_atts, $defaults );
1944
1945	// is there rl_gallery ID?
1946	$rl_gallery_id = $defaults['rl_gallery_id'] = ! empty( $shortcode_atts['rl_gallery_id'] ) ? (int) $shortcode_atts['rl_gallery_id'] : 0;
1947
1948	// is it rl gallery?
1949	$rl_gallery = $rl->options['builder']['gallery_builder'] && $rl_gallery_id && get_post_type( $rl_gallery_id ) === 'rl_gallery';
1950
1951	// private gallery?
1952	if ( $rl_gallery && get_post_status( $rl_gallery_id ) === 'private' && ! current_user_can( 'read_private_posts' ) )
1953	return '';
1954
1955	if ( ! array_key_exists( 'type', $shortcode_atts ) )
1956	$shortcode_atts['type'] = '';
1957
1958	// break if it is not basic grid gallery - first check
1959	if ( ! ( $shortcode_atts['type'] === 'basicgrid' \|\| ( $shortcode_atts['type'] === '' && ( ( $rl_gallery && $rl->options['settings']['builder_gallery'] === 'basicgrid' ) \|\| ( ! $rl_gallery && $rl->options['settings']['default_gallery'] === 'basicgrid' ) ) ) ) )
1960	return $output;
1961
1962	// get shortcode gallery fields combined with defaults
1963	$fields = rl_get_gallery_fields( 'basicgrid' );
1964
1965	// get gallery fields attributes
1966	$field_atts = rl_get_gallery_fields_atts( $fields, $shortcode_atts, $rl_gallery );
1967
1968	// is it rl gallery? add misc and lightbox fields
1969	if ( $rl_gallery ) {
1970	// get fields
1971	$fields_data = $rl->galleries->get_data( 'fields' );
1972
1973	$fields += $fields_data['lightbox']['options'] + $fields_data['misc']['options'];
1974	}
1975
1976	// get only valid arguments
1977	$atts = shortcode_atts( array_merge( $defaults, $field_atts ), $shortcode_atts, 'gallery' );
1978
1979	// sanitize gallery fields
1980	$atts = $this->sanitize_shortcode_args( $atts, $fields );
1981
1982	// break if it is not basic grid gallery
1983	if ( ! ( $atts['type'] === 'basicgrid' \|\| ( $atts['type'] === '' && ( ( $rl_gallery && $rl->options['settings']['builder_gallery'] === 'basicgrid' ) \|\| ( ! $rl_gallery && $rl->options['settings']['default_gallery'] === 'basicgrid' ) ) ) ) )
1984	return $output;
1985
1986	// ID
1987	$atts['id'] = (int) $atts['id'];
1988
1989	// add custom classes if needed
1990	if ( $rl_gallery )
1991	$atts['class'] .= ' ' . $atts['gallery_custom_class'];
1992
1993	// any classes?
1994	if ( $atts['class'] !== '' ) {
1995	$atts['class'] = trim( $atts['class'] );
1996
1997	// more than 1 class?
1998	if ( strpos( $atts['class'], ' ' ) !== false ) {
1999	// get unique valid HTML classes
2000	$atts['class'] = array_unique( array_filter( array_map( 'sanitize_html_class', explode( ' ', $atts['class'] ) ) ) );
2001
2002	if ( ! empty( $atts['class'] ) )
2003	$atts['class'] = implode( ' ', $atts['class'] );
2004	else
2005	$atts['class'] = '';
2006	// single class
2007	} else
2008	$atts['class'] = sanitize_html_class( $atts['class'] );
2009	}
2010
2011	// orderby
2012	if ( empty( $atts['orderby'] ) ) {
2013	$atts['orderby'] = sanitize_sql_orderby( $atts['orderby'] );
2014
2015	if ( empty( $atts['orderby'] ) )
2016	$atts['orderby'] = $defaults['orderby'];
2017	}
2018
2019	// order
2020	if ( strtolower( $atts['order'] ) === 'rand' )
2021	$atts['orderby'] = 'rand';
2022
2023	// check columns
2024	if ( $atts['columns_lg'] === 0 )
2025	$atts['columns_lg'] = $atts['columns'];
2026
2027	if ( $atts['columns_md'] === 0 )
2028	$atts['columns_md'] = $atts['columns'];
2029
2030	if ( $atts['columns_sm'] === 0 )
2031	$atts['columns_sm'] = $atts['columns'];
2032
2033	if ( $atts['columns_xs'] === 0 )
2034	$atts['columns_xs'] = $atts['columns'];
2035
2036	// gallery lightbox source size
2037	if ( ! empty( $atts['lightbox_image_size'] ) ) {
2038	if ( $atts['lightbox_image_size'] === 'global' )
2039	$atts['src_size'] = $rl->options['settings']['gallery_image_size'];
2040	elseif ( $atts['lightbox_image_size'] === 'lightbox_custom_size' && isset( $atts['lightbox_custom_size_width'], $atts['lightbox_custom_size_height'] ) )
2041	$atts['src_size'] = [ $atts['lightbox_custom_size_width'], $atts['lightbox_custom_size_height'] ];
2042	else
2043	$atts['src_size'] = $atts['lightbox_image_size'];
2044	} else
2045	$atts['src_size'] = $rl->options['settings']['gallery_image_size'];
2046
2047	// filter all shortcode arguments
2048	$atts = apply_filters( 'rl_gallery_shortcode_atts', $atts, $rl_gallery_id );
2049
2050	// get gallery images
2051	$images = rl_get_gallery_shortcode_images( $atts );
2052
2053	if ( empty( $images ) \|\| is_feed() \|\| defined( 'IS_HTML_EMAIL' ) )
2054	return $output;
2055
2056	// make sure it is integer
2057	$gallery_no = (int) $this->gallery_no;
2058
2059	ob_start();
2060
2061	// $gallery_no and $rl_gallery_id are both integers ?>
2062	<div class="rl-gallery-container <?php echo esc_attr( apply_filters( 'rl_gallery_container_class', '', $atts, $rl_gallery_id ) ); ?>" id="rl-gallery-container-<?php echo (int) $gallery_no; ?>" data-gallery_id="<?php echo (int) $rl_gallery_id; ?>">
2063
2064	<?php do_action( 'rl_before_gallery', $atts, $rl_gallery_id ); ?>
2065
2066	<div class="rl-gallery rl-basicgrid-gallery <?php echo esc_attr( $atts['class'] ); ?>" id="rl-gallery-<?php echo (int) $gallery_no; ?>" data-gallery_no="<?php echo (int) $gallery_no; ?>">
2067
2068	<?php foreach ( $images as $image ) {
2069	// $image['link'] is already escaped via get_gallery_image_link(), but we apply wp_kses_post() for defense-in-depth
2070	echo '<div class="rl-gallery-item">' . wp_kses_post( $image['link'] ) . '</div>';
2071	} ?>
2072
2073	</div>
2074
2075	<?php do_action( 'rl_after_gallery', $atts, $rl_gallery_id ); ?>
2076
2077	</div>
2078
2079	<?php $gallery_html = ob_get_contents();
2080
2081	ob_end_clean();
2082
2083	// styles
2084	wp_enqueue_style( 'responsive-lightbox-basicgrid-gallery', plugins_url( 'css/gallery-basicgrid.css', dirname( __FILE__ ) ), [], $rl->defaults['version'] );
2085	wp_enqueue_style( 'responsive-lightbox-basicgrid-gallery-inline' );
2086
2087	// prepare style data
2088	$style_data = '
2089	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item {
2090	width: calc(' . (string) round( 100 / (int) $atts['columns'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2091	margin: ' . (string) round( (int) $atts['gutter'] / 2, 2 ) . 'px;
2092	}
2093	@media all and (min-width: 1200px) {
2094	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item {
2095	width: calc(' . (string) round( 100 / (int) $atts['columns_lg'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2096	}
2097	}
2098	@media all and (min-width: 992px) and (max-width: 1200px) {
2099	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item {
2100	width: calc(' . (string) round( 100 / (int) $atts['columns_md'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2101	}
2102	}
2103	@media all and (min-width: 768px) and (max-width: 992px) {
2104	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item {
2105	width: calc(' . (string) round( 100 / (int) $atts['columns_sm'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2106	}
2107	}
2108	@media all and (max-width: 768px) {
2109	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item {
2110	width: calc(' . (string) round( 100 / (int) $atts['columns_xs'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2111	}
2112	}';
2113
2114	if ( $atts['force_height'] ) {
2115	$style_data .= '
2116	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item {
2117	height: ' . (int) $atts['row_height'] . 'px;
2118	}
2119	#rl-gallery-container-' . $gallery_no . ' .rl-basicgrid-gallery .rl-gallery-item img {
2120	height: ' . (int) $atts['row_height'] . 'px;
2121	object-fit: cover;
2122	max-width: 100%;
2123	min-width: 100%;
2124	}';
2125	}
2126
2127	// load style data
2128	$style_loaded = wp_add_inline_style( 'responsive-lightbox-basicgrid-gallery-inline', $style_data );
2129
2130	if ( ! $style_loaded )
2131	$this->style_data['basicgrid'] .= $style_data;
2132
2133	// remove any new lines from the output so that the reader parses it better
2134	return apply_filters( 'rl_gallery_shortcode_html', trim( preg_replace( '/\s+/', ' ', $gallery_html ) ), $atts, $rl_gallery_id );
2135	}
2136
2137	/**
2138	* Render Basic Slider gallery shortcode.
2139	*
2140	* @global object $post
2141	*
2142	* @param string $output HTML output
2143	* @param array $shortcode_atts Shortcode attributes
2144	* @return string
2145	*/
2146	public function basic_slider_gallery_shortcode( $output, $shortcode_atts ) {
2147	if ( ! empty( $output ) )
2148	return $output;
2149
2150	global $post;
2151
2152	$defaults = [
2153	'rl_gallery_id' => 0,
2154	'id' => isset( $post->ID ) ? (int) $post->ID : 0,
2155	'class' => '',
2156	'include' => '',
2157	'exclude' => '',
2158	'urls' => '',
2159	'type' => '',
2160	'order' => 'asc',
2161	'orderby' => 'menu_order',
2162	'size' => 'medium',
2163	'link' => 'file',
2164	'columns' => 3
2165	];
2166
2167	// get main instance
2168	$rl = Responsive_Lightbox();
2169
2170	if ( ! is_array( $shortcode_atts ) )
2171	$shortcode_atts = wp_parse_args( $shortcode_atts, $defaults );
2172
2173	// is there rl_gallery ID?
2174	$rl_gallery_id = $defaults['rl_gallery_id'] = ! empty( $shortcode_atts['rl_gallery_id'] ) ? (int) $shortcode_atts['rl_gallery_id'] : 0;
2175
2176	// is it rl gallery?
2177	$rl_gallery = $rl->options['builder']['gallery_builder'] && $rl_gallery_id && get_post_type( $rl_gallery_id ) === 'rl_gallery';
2178
2179	// private gallery?
2180	if ( $rl_gallery && get_post_status( $rl_gallery_id ) === 'private' && ! current_user_can( 'read_private_posts' ) )
2181	return '';
2182
2183	if ( ! array_key_exists( 'type', $shortcode_atts ) )
2184	$shortcode_atts['type'] = '';
2185
2186	// break if it is not basic slider gallery - first check
2187	if ( ! ( $shortcode_atts['type'] === 'basicslider' \|\| ( $shortcode_atts['type'] === '' && ( ( $rl_gallery && $rl->options['settings']['builder_gallery'] === 'basicslider' ) \|\| ( ! $rl_gallery && $rl->options['settings']['default_gallery'] === 'basicslider' ) ) ) ) )
2188	return $output;
2189
2190	// get shortcode gallery fields combined with defaults
2191	$fields = rl_get_gallery_fields( 'basicslider' );
2192
2193	// get gallery fields attributes
2194	$field_atts = rl_get_gallery_fields_atts( $fields, $shortcode_atts, $rl_gallery );
2195
2196	// is it rl gallery? add misc and lightbox fields
2197	if ( $rl_gallery ) {
2198	// get fields
2199	$fields_data = $rl->galleries->get_data( 'fields' );
2200
2201	$fields += $fields_data['lightbox']['options'] + $fields_data['misc']['options'];
2202	}
2203
2204	// get only valid arguments
2205	$atts = shortcode_atts( array_merge( $defaults, $field_atts ), $shortcode_atts, 'gallery' );
2206
2207	// sanitize gallery fields
2208	$atts = $this->sanitize_shortcode_args( $atts, $fields );
2209
2210	// break if it is not basic slider gallery
2211	if ( ! ( $atts['type'] === 'basicslider' \|\| ( $atts['type'] === '' && ( ( $rl_gallery && $rl->options['settings']['builder_gallery'] === 'basicslider' ) \|\| ( ! $rl_gallery && $rl->options['settings']['default_gallery'] === 'basicslider' ) ) ) ) )
2212	return $output;
2213
2214	// ID
2215	$atts['id'] = (int) $atts['id'];
2216
2217	// add custom classes if needed
2218	if ( $rl_gallery )
2219	$atts['class'] .= ' ' . $atts['gallery_custom_class'];
2220
2221	// any classes?
2222	if ( $atts['class'] !== '' ) {
2223	$atts['class'] = trim( $atts['class'] );
2224
2225	// more than 1 class?
2226	if ( strpos( $atts['class'], ' ' ) !== false ) {
2227	// get unique valid HTML classes
2228	$atts['class'] = array_unique( array_filter( array_map( 'sanitize_html_class', explode( ' ', $atts['class'] ) ) ) );
2229
2230	if ( ! empty( $atts['class'] ) )
2231	$atts['class'] = implode( ' ', $atts['class'] );
2232	else
2233	$atts['class'] = '';
2234	// single class
2235	} else
2236	$atts['class'] = sanitize_html_class( $atts['class'] );
2237	}
2238
2239	// orderby
2240	if ( empty( $atts['orderby'] ) ) {
2241	$atts['orderby'] = sanitize_sql_orderby( $atts['orderby'] );
2242
2243	if ( empty( $atts['orderby'] ) )
2244	$atts['orderby'] = $defaults['orderby'];
2245	}
2246
2247	// order
2248	if ( strtolower( $atts['order'] ) === 'rand' )
2249	$atts['orderby'] = 'rand';
2250
2251	// gallery lightbox source size
2252	if ( ! empty( $atts['lightbox_image_size'] ) ) {
2253	if ( $atts['lightbox_image_size'] === 'global' )
2254	$atts['src_size'] = $rl->options['settings']['gallery_image_size'];
2255	elseif ( $atts['lightbox_image_size'] === 'lightbox_custom_size' && isset( $atts['lightbox_custom_size_width'], $atts['lightbox_custom_size_height'] ) )
2256	$atts['src_size'] = [ $atts['lightbox_custom_size_width'], $atts['lightbox_custom_size_height'] ];
2257	else
2258	$atts['src_size'] = $atts['lightbox_image_size'];
2259	} else
2260	$atts['src_size'] = $rl->options['settings']['gallery_image_size'];
2261
2262	// filter all shortcode arguments
2263	$atts = apply_filters( 'rl_gallery_shortcode_atts', $atts, $rl_gallery_id );
2264
2265	// get gallery images
2266	$images = rl_get_gallery_shortcode_images( $atts );
2267
2268	if ( empty( $images ) \|\| is_feed() \|\| defined( 'IS_HTML_EMAIL' ) )
2269	return $output;
2270
2271	// make sure it is integer
2272	$gallery_no = (int) $this->gallery_no;
2273
2274	ob_start();
2275
2276	// $gallery_no and $rl_gallery_id are both integers ?>
2277	<div class="rl-gallery-container splide <?php echo esc_attr( apply_filters( 'rl_gallery_container_class', '', $atts, $rl_gallery_id ) ); ?>" id="rl-gallery-container-<?php echo (int) $gallery_no; ?>" data-gallery_id="<?php echo (int) $rl_gallery_id; ?>">
2278
2279	<?php do_action( 'rl_before_gallery', $atts, $rl_gallery_id ); ?>
2280
2281	<div class="rl-gallery rl-basicslider-gallery splide__track <?php echo esc_attr( $atts['class'] ); ?>" id="rl-gallery-<?php echo (int) $gallery_no; ?>" data-gallery_no="<?php echo (int) $gallery_no; ?>">
2282	<ul class="splide__list">
2283
2284	<?php foreach ( $images as $image ) {
2285	echo '
2286	<li class="rl-gallery-item splide__slide" ' . implode( ' ', apply_filters( 'rl_gallery_item_extra_args', [], $atts, $image ) ) . ' data-thumb="' . $image['thumbnail_url'] . '">
2287	' . wp_kses_post( $image['link'] ) . '
2288	</li>';
2289	} ?>
2290
2291	</ul>
2292	</div>
2293
2294	<?php do_action( 'rl_after_gallery', $atts, $rl_gallery_id ); ?>
2295
2296	</div>
2297
2298	<?php $gallery_html = ob_get_contents();
2299
2300	ob_end_clean();
2301
2302	// enqueue scripts and styles
2303	wp_enqueue_script( 'responsive-lightbox-basicslider-gallery' );
2304	wp_enqueue_style( 'responsive-lightbox-basicslider-gallery' );
2305	wp_enqueue_style( 'responsive-lightbox-basicslider-gallery-inline' );
2306
2307	// prepare style data
2308	$style_data = '
2309	#rl-gallery-container-' . $gallery_no . ' .rl-basicslider-gallery .rl-gallery-item img {
2310	width: 100%;
2311	height: auto;
2312	}';
2313
2314	// load style data
2315	$style_loaded = wp_add_inline_style( 'responsive-lightbox-basicslider-gallery-inline', $style_data );
2316
2317	if ( ! $style_loaded )
2318	$this->style_data['basicslider'] .= $style_data;
2319
2320	// prepare script data
2321	$script_data = [
2322	'type' => $atts['slider_type'],
2323	'height' => ( $atts['height'] > 0 ? $atts['height'] . 'px' : 0 ),
2324	'width' => ( $atts['width'] > 0 ? $atts['width'] . '%' : 0 ),
2325	'speed' => $atts['speed'],
2326	'gap' => $atts['gap'] . 'px',
2327	'arrows' => $atts['arrows_navigation'],
2328	'pagination' => $atts['dots_navigation'],
2329	'drag' => $atts['drag'],
2330	'autoplay' => $atts['autoplay'],
2331	'interval' => $atts['interval'],
2332	'wheel' => $atts['wheel'],
2333	'perPage' => $atts['slides_per_page'],
2334	'perMove' => $atts['slides_per_move'],
2335	'start' => $atts['slides_start']
2336	];
2337
2338	// load script data
2339	$script_data = 'var rlArgsBasicSliderGallery' . ( $gallery_no + 1 ) . ' = ' . json_encode( $script_data ) . ";\n";
2340	$script_loaded = wp_add_inline_script( 'responsive-lightbox-basicslider-gallery', $script_data, 'before' );
2341
2342	if ( ! $script_loaded )
2343	$this->script_data['basicslider'] .= $script_data;
2344
2345	// remove any new lines from the output so that the reader parses it better
2346	return apply_filters( 'rl_gallery_shortcode_html', trim( preg_replace( '/\s+/', ' ', $gallery_html ) ), $atts, $rl_gallery_id );
2347	}
2348
2349	/**
2350	* Render Basic Masonry gallery shortcode.
2351	*
2352	* @global object $post
2353	*
2354	* @param string $output HTML output
2355	* @param array $shortcode_atts Shortcode attributes
2356	* @return string
2357	*/
2358	public function basic_masonry_gallery_shortcode( $output, $shortcode_atts ) {
2359	if ( ! empty( $output ) )
2360	return $output;
2361
2362	global $post;
2363
2364	$defaults = [
2365	'rl_gallery_id' => 0,
2366	'id' => isset( $post->ID ) ? (int) $post->ID : 0,
2367	'class' => '',
2368	'include' => '',
2369	'exclude' => '',
2370	'urls' => '',
2371	'type' => '',
2372	'order' => 'asc',
2373	'orderby' => 'menu_order',
2374	'size' => 'medium',
2375	'link' => 'file',
2376	'columns' => 3
2377	];
2378
2379	// get main instance
2380	$rl = Responsive_Lightbox();
2381
2382	if ( ! is_array( $shortcode_atts ) )
2383	$shortcode_atts = wp_parse_args( $shortcode_atts, $defaults );
2384
2385	// is there rl_gallery ID?
2386	$rl_gallery_id = $defaults['rl_gallery_id'] = ! empty( $shortcode_atts['rl_gallery_id'] ) ? (int) $shortcode_atts['rl_gallery_id'] : 0;
2387
2388	// is it rl gallery?
2389	$rl_gallery = $rl->options['builder']['gallery_builder'] && $rl_gallery_id && get_post_type( $rl_gallery_id ) === 'rl_gallery';
2390
2391	// private gallery?
2392	if ( $rl_gallery && get_post_status( $rl_gallery_id ) === 'private' && ! current_user_can( 'read_private_posts' ) )
2393	return '';
2394
2395	if ( ! array_key_exists( 'type', $shortcode_atts ) )
2396	$shortcode_atts['type'] = '';
2397
2398	// break if it is not basic masonry gallery - first check
2399	if ( ! ( $shortcode_atts['type'] === 'basicmasonry' \|\| ( $shortcode_atts['type'] === '' && ( ( $rl_gallery && $rl->options['settings']['builder_gallery'] === 'basicmasonry' ) \|\| ( ! $rl_gallery && $rl->options['settings']['default_gallery'] === 'basicmasonry' ) ) ) ) )
2400	return $output;
2401
2402	// get shortcode gallery fields combined with defaults
2403	$fields = rl_get_gallery_fields( 'basicmasonry' );
2404
2405	// get gallery fields attributes
2406	$field_atts = rl_get_gallery_fields_atts( $fields, $shortcode_atts, $rl_gallery );
2407
2408	// is it rl gallery? add misc and lightbox fields
2409	if ( $rl_gallery ) {
2410	// get fields
2411	$fields_data = $rl->galleries->get_data( 'fields' );
2412
2413	$fields += $fields_data['lightbox']['options'] + $fields_data['misc']['options'];
2414	}
2415
2416	// get only valid arguments
2417	$atts = shortcode_atts( array_merge( $defaults, $field_atts ), $shortcode_atts, 'gallery' );
2418
2419	// sanitize gallery fields
2420	$atts = $this->sanitize_shortcode_args( $atts, $fields );
2421
2422	// break if it is not basic masonry gallery
2423	if ( ! ( $atts['type'] === 'basicmasonry' \|\| ( $atts['type'] === '' && ( ( $rl_gallery && $rl->options['settings']['builder_gallery'] === 'basicmasonry' ) \|\| ( ! $rl_gallery && $rl->options['settings']['default_gallery'] === 'basicmasonry' ) ) ) ) )
2424	return $output;
2425
2426	// ID
2427	$atts['id'] = (int) $atts['id'];
2428
2429	// add custom classes if needed
2430	if ( $rl_gallery )
2431	$atts['class'] .= ' ' . $atts['gallery_custom_class'];
2432
2433	// any classes?
2434	if ( $atts['class'] !== '' ) {
2435	$atts['class'] = trim( $atts['class'] );
2436
2437	// more than 1 class?
2438	if ( strpos( $atts['class'], ' ' ) !== false ) {
2439	// get unique valid HTML classes
2440	$atts['class'] = array_unique( array_filter( array_map( 'sanitize_html_class', explode( ' ', $atts['class'] ) ) ) );
2441
2442	if ( ! empty( $atts['class'] ) )
2443	$atts['class'] = implode( ' ', $atts['class'] );
2444	else
2445	$atts['class'] = '';
2446	// single class
2447	} else
2448	$atts['class'] = sanitize_html_class( $atts['class'] );
2449	}
2450
2451	// orderby
2452	if ( empty( $atts['orderby'] ) ) {
2453	$atts['orderby'] = sanitize_sql_orderby( $atts['orderby'] );
2454
2455	if ( empty( $atts['orderby'] ) )
2456	$atts['orderby'] = $defaults['orderby'];
2457	}
2458
2459	// order
2460	if ( strtolower( $atts['order'] ) === 'rand' )
2461	$atts['orderby'] = 'rand';
2462
2463	// check columns
2464	if ( $atts['columns_lg'] === 0 )
2465	$atts['columns_lg'] = $atts['columns'];
2466
2467	if ( $atts['columns_md'] === 0 )
2468	$atts['columns_md'] = $atts['columns'];
2469
2470	if ( $atts['columns_sm'] === 0 )
2471	$atts['columns_sm'] = $atts['columns'];
2472
2473	if ( $atts['columns_xs'] === 0 )
2474	$atts['columns_xs'] = $atts['columns'];
2475
2476	// gallery lightbox source size
2477	if ( ! empty( $atts['lightbox_image_size'] ) ) {
2478	if ( $atts['lightbox_image_size'] === 'global' )
2479	$atts['src_size'] = $rl->options['settings']['gallery_image_size'];
2480	elseif ( $atts['lightbox_image_size'] === 'lightbox_custom_size' && isset( $atts['lightbox_custom_size_width'], $atts['lightbox_custom_size_height'] ) )
2481	$atts['src_size'] = [ $atts['lightbox_custom_size_width'], $atts['lightbox_custom_size_height'] ];
2482	else
2483	$atts['src_size'] = $atts['lightbox_image_size'];
2484	} else
2485	$atts['src_size'] = $rl->options['settings']['gallery_image_size'];
2486
2487	// filter all shortcode arguments
2488	$atts = apply_filters( 'rl_gallery_shortcode_atts', $atts, $rl_gallery_id );
2489
2490	// get gallery images
2491	$images = rl_get_gallery_shortcode_images( $atts );
2492
2493	if ( empty( $images ) \|\| is_feed() \|\| defined( 'IS_HTML_EMAIL' ) )
2494	return $output;
2495
2496	// make sure it is integer
2497	$gallery_no = (int) $this->gallery_no;
2498
2499	ob_start();
2500
2501	// $gallery_no and $rl_gallery_id are both integers ?>
2502	<div class="rl-gallery-container <?php echo esc_attr( apply_filters( 'rl_gallery_container_class', '', $atts, $rl_gallery_id ) ); ?>" id="rl-gallery-container-<?php echo (int) $gallery_no; ?>" data-gallery_id="<?php echo (int) $rl_gallery_id; ?>">
2503
2504	<?php do_action( 'rl_before_gallery', $atts, $rl_gallery_id ); ?>
2505
2506	<div class="rl-gallery rl-basicmasonry-gallery <?php echo esc_attr( $atts['class'] ); ?>" id="rl-gallery-<?php echo (int) $gallery_no; ?>" data-gallery_no="<?php echo (int) $gallery_no; ?>">
2507
2508	<?php
2509	$count = 0;
2510
2511	if ( $count === 0 )
2512	echo '<div class="rl-gutter-sizer"></div><div class="rl-grid-sizer"></div>';
2513
2514	foreach ( $images as $image ) {
2515	// $image['link'] is already escaped via get_gallery_image_link(), but we apply wp_kses_post() for defense-in-depth
2516	echo '
2517	<div class="rl-gallery-item' . ( $count === 0 ? ' rl-gallery-item-width-4' : '' ) . '" ' . implode( ' ', apply_filters( 'rl_gallery_item_extra_args', [], $atts, $image ) ) . '>
2518	<div class="rl-gallery-item-content">
2519	' . wp_kses_post( $image['link'] ) . '
2520	</div>
2521	</div>';
2522
2523	$count++;
2524	} ?>
2525
2526	</div>
2527
2528	<?php do_action( 'rl_after_gallery', $atts, $rl_gallery_id ); ?>
2529
2530	</div>
2531
2532	<?php $gallery_html = ob_get_contents();
2533
2534	ob_clean();
2535
2536	// enqueue scripts and styles
2537	wp_enqueue_script( 'responsive-lightbox-basicmasonry-gallery' );
2538	wp_enqueue_style( 'responsive-lightbox-basicmasonry-gallery' );
2539	wp_enqueue_style( 'responsive-lightbox-basicmasonry-gallery-inline' );
2540
2541	// prepare style data
2542	$style_data = '
2543	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery {
2544	margin: ' . -(string) round( (int) $atts['margin'] / 2, 1 ) . 'px ' . -(string) round( (int) $atts['gutter'] / 2, 1 ) . 'px;
2545	padding: ' . (int) $atts['margin'] . 'px 0;
2546	}
2547	#rl-gallery-container-' . $gallery_no . ' .rl-pagination-bottom {
2548	margin-top: ' . ( (int) $atts['margin'] / 2 ) . 'px
2549	}
2550	#rl-gallery-container-' . $gallery_no . ' .rl-pagination-top {
2551	margin-bottom: ' . ( (int) $atts['margin'] / 2 ) . 'px
2552	}
2553	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-gallery-item,
2554	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-grid-sizer {
2555	width: calc(' . (string) round( 100 / (int) $atts['columns'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2556	margin: ' . ( (int) $atts['margin'] / 2 ) . 'px ' . ( (int) $atts['gutter'] / 2 ) . 'px;
2557	}
2558	@media all and (min-width: 1200px) {
2559	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-gallery-item,
2560	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-grid-sizer {
2561	width: calc(' . (string) round( 100 / (int) $atts['columns_lg'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2562	margin: ' . ( (int) $atts['margin'] / 2 ) . 'px ' . ( (int) $atts['gutter'] / 2 ) . 'px;
2563	}
2564	}
2565	@media all and (min-width: 992px) and (max-width: 1200px) {
2566	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-gallery-item,
2567	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-grid-sizer {
2568	width: calc(' . (string) round( 100 / (int) $atts['columns_md'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2569	margin: ' . ( (int) $atts['margin'] / 2 ) . 'px ' . ( (int) $atts['gutter'] / 2 ) . 'px;
2570	}
2571	}
2572	@media all and (min-width: 768px) and (max-width: 992px) {
2573	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-gallery-item,
2574	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-grid-sizer {
2575	width: calc(' . (string) round( 100 / (int) $atts['columns_sm'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2576	margin: ' . ( (int) $atts['margin'] / 2 ) . 'px ' . ( (int) $atts['gutter'] / 2 ) . 'px;
2577	}
2578	}
2579	@media all and (max-width: 768px) {
2580	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-gallery-item,
2581	#rl-gallery-container-' . $gallery_no . ' .rl-basicmasonry-gallery .rl-grid-sizer {
2582	width: calc(' . (string) round( 100 / (int) $atts['columns_xs'], 2 ) . '% - ' . (int) $atts['gutter'] . 'px);
2583	margin: ' . ( (int) $atts['margin'] / 2 ) . 'px ' . ( (int) $atts['gutter'] / 2 ) . 'px;
2584	}
2585	}';
2586
2587	// load style data
2588	$style_loaded = wp_add_inline_style( 'responsive-lightbox-basicmasonry-gallery-inline', $style_data );
2589
2590	if ( ! $style_loaded )
2591	$this->style_data['basicmasonry'] .= $style_data;
2592
2593	// prepare script data
2594	$script_data = [
2595	'originLeft' => $atts['origin_left'],
2596	'originTop' => $atts['origin_top']
2597	];
2598
2599	// load script data
2600	$script_data = 'var rlArgsBasicMasonryGallery' . ( $gallery_no + 1 ) . ' = ' . json_encode( $script_data ) . ";\n";
2601	$script_loaded = wp_add_inline_script( 'responsive-lightbox-basicmasonry-gallery', $script_data, 'before' );
2602
2603	if ( ! $script_loaded )
2604	$this->script_data['basicmasonry'] .= $script_data;
2605
2606	// remove any new lines from the output so that the reader parses it better
2607	return apply_filters( 'rl_gallery_shortcode_html', trim( preg_replace( '/\s+/', ' ', $gallery_html ) ), $atts, $rl_gallery_id );
2608	}
2609
2610	/**
2611	* Register frontend scripts.
2612	*
2613	* @return void
2614	*/
2615	public function wp_enqueue_scripts() {
2616	// get main instance
2617	$rl = Responsive_Lightbox();
2618
2619	// gallery style
2620	wp_register_style( 'responsive-lightbox-gallery', plugins_url( 'css/gallery.css', dirname( __FILE__ ) ), [], $rl->defaults['version'] );
2621	wp_register_style( 'responsive-lightbox-gallery-inline', false, [ 'responsive-lightbox-gallery' ], $rl->defaults['version'] );
2622
2623	// load style data?
2624	if ( ! empty( $this->style_data['gallery'] ) )
2625	wp_add_inline_style( 'responsive-lightbox-gallery-inline', $this->style_data['gallery'] );
2626
2627	// Basic Grid
2628	// styles
2629	wp_register_style( 'responsive-lightbox-basicgrid-gallery', plugins_url( 'css/gallery-basicgrid.css', dirname( __FILE__ ) ), [], $rl->defaults['version'] );
2630	wp_register_style( 'responsive-lightbox-basicgrid-gallery-inline', false, [ 'responsive-lightbox-basicgrid-gallery' ], $rl->defaults['version'] );
2631
2632	// load style data?
2633	if ( ! empty( $this->style_data['basicgrid'] ) )
2634	wp_add_inline_style( 'responsive-lightbox-basicgrid-gallery-inline', $this->style_data['basicgrid'] );
2635
2636	// Basic Slider
2637	// scripts
2638	wp_register_script( 'responsive-lightbox-basicslider', plugins_url( 'assets/splide/splide.min.js', dirname( __FILE__ ) ), [], '4.1.4', $rl->options['settings']['loading_place'] === 'footer' );
2639	wp_register_script( 'responsive-lightbox-basicslider-gallery', plugins_url( 'js/front-basicslider.js', dirname( __FILE__ ) ), [ 'jquery', 'responsive-lightbox-basicslider' ], $rl->defaults['version'], $rl->options['settings']['loading_place'] === 'footer' );
2640
2641	// load script data?
2642	if ( ! empty( $this->script_data['basicslider'] ) )
2643	wp_add_inline_script( 'responsive-lightbox-basicslider-gallery', $this->script_data['basicslider'], 'before' );
2644
2645	// styles
2646	wp_register_style( 'responsive-lightbox-basicslider-gallery', plugins_url( 'assets/splide/splide.min.css', dirname( __FILE__ ) ), [], '4.1.4' );
2647	wp_register_style( 'responsive-lightbox-basicslider-gallery-inline', false, [ 'responsive-lightbox-basicslider-gallery' ], $rl->defaults['version'] );
2648
2649	// load style data?
2650	if ( ! empty( $this->style_data['basicslider'] ) )
2651	wp_add_inline_style( 'responsive-lightbox-basicslider-gallery-inline', $this->style_data['basicslider'] );
2652
2653	// Basic Masonry
2654	// scripts
2655	wp_register_script( 'responsive-lightbox-images-loaded', plugins_url( 'assets/imagesloaded/imagesloaded.pkgd' . ( ! ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '.min' : '' ) . '.js', dirname( __FILE__ ) ), [ 'jquery' ], '5.0.0' );
2656	wp_register_script( 'responsive-lightbox-masonry', plugins_url( 'assets/masonry/masonry.pkgd' . ( ! ( defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ) ? '.min' : '' ) . '.js', dirname( __FILE__ ) ), [ 'jquery' ], '4.2.2', $rl->options['settings']['loading_place'] === 'footer' );
2657	wp_register_script( 'responsive-lightbox-basicmasonry-gallery', plugins_url( 'js/front-basicmasonry.js', dirname( __FILE__ ) ), [ 'jquery', 'responsive-lightbox-masonry', 'responsive-lightbox-images-loaded' ], $rl->defaults['version'], ( $rl->options['settings']['loading_place'] === 'footer' ) );
2658
2659	// load script data?
2660	if ( ! empty( $this->script_data['basicmasonry'] ) )
2661	wp_add_inline_script( 'responsive-lightbox-basicmasonry-gallery', $this->script_data['basicmasonry'], 'before' );
2662
2663	// styles
2664	wp_register_style( 'responsive-lightbox-basicmasonry-gallery', plugins_url( 'css/gallery-basicmasonry.css', dirname( __FILE__ ) ), [], $rl->defaults['version'] );
2665	wp_register_style( 'responsive-lightbox-basicmasonry-gallery-inline', false, [ 'responsive-lightbox-basicmasonry-gallery' ], $rl->defaults['version'] );
2666
2667	// load style data?
2668	if ( ! empty( $this->style_data['basicmasonry'] ) )
2669	wp_add_inline_style( 'responsive-lightbox-basicmasonry-gallery-inline', $this->style_data['basicmasonry'] );
2670
2671	if ( $this->should_preload_gallery_assets() ) {
2672	$styles = apply_filters(
2673	'rl_gallery_preload_styles',
2674	[
2675	'responsive-lightbox-gallery',
2676	'responsive-lightbox-basicgrid-gallery',
2677	'responsive-lightbox-basicslider-gallery',
2678	'responsive-lightbox-basicmasonry-gallery'
2679	]
2680	);
2681
2682	foreach ( $styles as $style ) {
2683	if ( is_string( $style ) && $style !== '' )
2684	wp_enqueue_style( $style );
2685	}
2686
2687	$scripts = apply_filters( 'rl_gallery_preload_scripts', [] );
2688
2689	foreach ( $scripts as $script ) {
2690	if ( is_string( $script ) && $script !== '' )
2691	wp_enqueue_script( $script );
2692	}
2693	}
2694	}
2695
2696	/**
2697	* Fetch remote image dimensions safely.
2698	*
2699	* @param string $url
2700	* @return array
2701	*/
2702	private function remote_image_size_lookup( $url ) {
2703	$args = [
2704	'timeout' => 5,
2705	'redirection' => 0,
2706	'reject_unsafe_urls' => true,
2707	'limit_response_size' => 1048576,
2708	'headers' => [ 'Accept' => 'image/*' ]
2709	];
2710
2711	$args = apply_filters( 'rl_remote_image_request_args', $args, $url );
2712	$max_redirects = absint( apply_filters( 'rl_remote_image_max_redirects', 3, $url ) );
2713	$current_url = $url;
2714
2715	for ( $redirects = 0; $redirects <= $max_redirects; $redirects++ ) {
2716	$response = wp_safe_remote_get( $current_url, $args );
2717
2718	if ( is_wp_error( $response ) )
2719	return [ 0, 0 ];
2720
2721	$status = wp_remote_retrieve_response_code( $response );
2722
2723	if ( in_array( $status, [ 301, 302, 303, 307, 308 ], true ) ) {
2724	$location = wp_remote_retrieve_header( $response, 'location' );
2725
2726	if ( empty( $location ) )
2727	return [ 0, 0 ];
2728
2729	if ( class_exists( 'WP_Http' ) )
2730	$location = WP_Http::make_absolute_url( $location, $current_url );
2731
2732	$next_url = $this->sanitize_remote_image_url( $location );
2733
2734	if ( empty( $next_url ) )
2735	return [ 0, 0 ];
2736
2737	$current_url = $next_url;
2738	continue;
2739	}
2740
2741	if ( $status < 200 \|\| $status >= 300 )
2742	return [ 0, 0 ];
2743
2744	$body = wp_remote_retrieve_body( $response );
2745
2746	if ( empty( $body ) )
2747	return [ 0, 0 ];
2748
2749	$dimensions = @getimagesizefromstring( $body );
2750
2751	if ( is_array( $dimensions ) && isset( $dimensions[0], $dimensions[1] ) )
2752	return [ absint( $dimensions[0] ), absint( $dimensions[1] ) ];
2753
2754	return [ 0, 0 ];
2755	}
2756
2757	return [ 0, 0 ];
2758	}
2759
2760	/**
2761	* Ensure the remote URL points to an allowed host.
2762	*
2763	* @param string $url
2764	* @return bool
2765	*/
2766	private function is_remote_image_url_allowed( $url ) {
2767	$parts = wp_parse_url( $url );
2768
2769	if ( empty( $parts['host'] ) )
2770	return false;
2771
2772	$host = strtolower( trim( $parts['host'], '[]' ) );
2773
2774	if ( in_array( $host, [ 'localhost', 'localhost.localdomain' ], true ) )
2775	return false;
2776
2777	if ( function_exists( 'idn_to_ascii' ) ) {
2778	$converted = defined( 'INTL_IDNA_VARIANT_UTS46' ) ? idn_to_ascii( $host, 0, INTL_IDNA_VARIANT_UTS46 ) : idn_to_ascii( $host );
2779
2780	if ( ! empty( $converted ) )
2781	$host = strtolower( $converted );
2782	}
2783
2784	$ips = $this->resolve_host_ips( $host );
2785
2786	if ( empty( $ips ) )
2787	return false;
2788
2789	foreach ( $ips as $ip ) {
2790	if ( $this->is_blocked_ip( $ip ) )
2791	return false;
2792	}
2793
2794	return true;
2795	}
2796
2797	/**
2798	* Resolve host into a list of IP addresses.
2799	*
2800	* @param string $host
2801	* @return array
2802	*/
2803	private function resolve_host_ips( $host ) {
2804	$host = trim( $host );
2805
2806	if ( $host === '' )
2807	return [];
2808
2809	if ( filter_var( $host, FILTER_VALIDATE_IP ) )
2810	return [ $host ];
2811
2812	$ips = [];
2813
2814	if ( function_exists( 'dns_get_record' ) && defined( 'DNS_A' ) ) {
2815	$dns_types = defined( 'DNS_A' ) ? DNS_A : 0;
2816
2817	if ( defined( 'DNS_AAAA' ) )
2818	$dns_types \|= DNS_AAAA;
2819
2820	if ( $dns_types > 0 ) {
2821	$records = @dns_get_record( $host, $dns_types );
2822
2823	if ( is_array( $records ) ) {
2824	foreach ( $records as $record ) {
2825	if ( ! empty( $record['ip'] ) )
2826	$ips[] = $record['ip'];
2827	elseif ( ! empty( $record['ipv6'] ) )
2828	$ips[] = $record['ipv6'];
2829	}
2830	}
2831	}
2832	}
2833
2834	if ( empty( $ips ) && function_exists( 'gethostbynamel' ) ) {
2835	$resolved = @gethostbynamel( $host );
2836
2837	if ( ! empty( $resolved ) )
2838	$ips = array_merge( $ips, $resolved );
2839	}
2840
2841	return array_unique( array_filter( $ips ) );
2842	}
2843
2844	/**
2845	* Check if an IP address belongs to a blocked range.
2846	*
2847	* @param string $ip
2848	* @return bool
2849	*/
2850	private function is_blocked_ip( $ip ) {
2851	$ip = trim( $ip );
2852
2853	if ( $ip === '' )
2854	return true;
2855
2856	if ( strpos( $ip, '%' ) !== false )
2857	list( $ip ) = explode( '%', $ip );
2858
2859	$flags = FILTER_FLAG_NO_PRIV_RANGE \| FILTER_FLAG_NO_RES_RANGE;
2860
2861	if ( filter_var( $ip, FILTER_VALIDATE_IP, $flags ) === false )
2862	return true;
2863
2864	if ( filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV4 ) ) {
2865	if ( preg_match( '/^(169\.254\.\|100\.(6[4-9]\|[7-9]\d\|1[01]\d\|12[0-7])\.)/', $ip ) )
2866	return true;
2867	} elseif ( filter_var( $ip, FILTER_VALIDATE_IP, FILTER_FLAG_IPV6 ) ) {
2868	$normalized = strtolower( $ip );
2869
2870	if ( $normalized === '::1' \|\| strpos( $normalized, 'fe80:' ) === 0 )
2871	return true;
2872	}
2873
2874	return false;
2875	}
2876	}
2877