class-frontend.php — Responsive Lightbox & Gallery 2.5.2

responsive-lightbox / includes / class-frontend.php

responsive-lightbox / includes Last commit date

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class-frontend.php

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