functions-image.php — Strong Testimonials 2.38

strong-testimonials / includes / functions-image.php

strong-testimonials / includes Last commit date

functions-image.php

169 lines

1	<?php
2	/**
3	* Featured image functions.
4	*/
5
6	/**
7	* @param null $size
8	*
9	* @return mixed\|string
10	*/
11	function wpmtst_get_thumbnail( $size = null ) {
12	if ( ! WPMST()->atts( 'thumbnail' ) )
13	return '';
14
15	// let arg override view setting
16	$size = ( null === $size ) ? WPMST()->atts( 'thumbnail_size' ) : $size ;
17	if ( 'custom' == $size ) {
18	$size = array( WPMST()->atts( 'thumbnail_width' ), WPMST()->atts( 'thumbnail_height' ) );
19	}
20
21	$id = get_the_ID();
22	$img = '';
23
24	// check for a featured image
25	if ( has_post_thumbnail( $id ) ) {
26
27	// show featured image
28	$img = get_the_post_thumbnail( $id, $size );
29
30	} else {
31
32	// no featured image, now what?
33
34	if ( 'yes' == WPMST()->atts( 'gravatar' ) ) {
35	// view > gravatar > show gravatar (use default, if not found)
36
37	$img = get_avatar( wpmtst_get_field( 'email' ), apply_filters( 'wpmtst_gravatar_size', $size ) );
38
39	} elseif ( 'if' == WPMST()->atts( 'gravatar' ) ) {
40	// view > gravatar > show gravatar only if found (and has email)
41
42	if ( wpmtst_get_field( 'email' ) ) {
43	// get_avatar will return false if not found (via filter)
44	$img = get_avatar( wpmtst_get_field( 'email' ), apply_filters( 'wpmtst_gravatar_size', $size ) );
45	}
46	}
47
48	}
49
50	return apply_filters( 'wpmtst_thumbnail_img', $img, $id );
51	}
52
53	/**
54	* Filter the thumbnail image.
55	* Used to add link for a lightbox. Will not affect avatars.
56	*
57	* @param $img
58	* @param $post_id
59	*
60	* @since 1.23.0
61	* @since 2.9.4 classes and filter
62	* @since 2.30.0 lightbox_class
63	*
64	* @return string
65	*/
66	function wpmtst_thumbnail_img( $img, $post_id ) {
67	if ( WPMST()->atts( 'lightbox' ) ) {
68	$url = wp_get_attachment_url( get_post_thumbnail_id( $post_id ) );
69	if ( $url ) {
70	$class_array = array( WPMST()->atts( 'lightbox_class' ) );
71	$classes = join( ' ', array_unique( apply_filters( 'wpmtst_thumbnail_link_class', $class_array ) ) );
72	$img = sprintf( '<a class="%s" href="%s">%s</a>', $classes, esc_url( $url ), $img );
73	}
74	}
75	return $img;
76	}
77	add_filter( 'wpmtst_thumbnail_img', 'wpmtst_thumbnail_img', 10, 2 );
78
79	/**
80	* Exclude testimonial thumbnails from Lazy Loading Responsive Images plugin.
81	*
82	* @param $attr
83	* @param $attachment
84	* @param $size
85	*
86	* @since 2.27.0
87	*
88	* @return array
89	*/
90	function wpmtst_exclude_from_lazyload( $attr, $attachment, $size ) {
91	$options = get_option( 'wpmtst_options' );
92	if ( isset( $options['no_lazyload'] ) && $options['no_lazyload'] ) {
93	if ( 'wpm-testimonial' == get_post_type( $attachment->post_parent ) ) {
94	$attr['data-no-lazyload'] = 1;
95	}
96	}
97
98	return $attr;
99	}
100
101	/**
102	* Add filter if Lazy Loading Responsive Images plugin is active.
103	*
104	* @since 2.27.0
105	*/
106	function wpmtst_lazyload_check() {
107	if ( wpmtst_is_plugin_active( 'lazy-loading-responsive-images' ) ) {
108	add_filter( 'wp_get_attachment_image_attributes', 'wpmtst_exclude_from_lazyload', 10, 3 );
109	}
110	}
111	add_action( 'init', 'wpmtst_lazyload_check' );
112
113	/**
114	* Filter the gravatar size.
115	*
116	* @param array\|string $size
117	* @since 1.23.0
118	* @return mixed
119	*/
120	function wpmtst_gravatar_size_filter( $size = array( 150, 150 ) ) {
121	// avatars are square so get the width of the requested size
122	if ( is_array( $size ) ) {
123	// if dimension array
124	$gravatar_size = $size[0];
125	} else {
126	// if named size
127	$image_sizes = wpmtst_get_image_sizes();
128	$gravatar_size = $image_sizes[$size]['width'];
129	}
130
131	return $gravatar_size;
132	}
133	add_filter( 'wpmtst_gravatar_size', 'wpmtst_gravatar_size_filter' );
134
135	/**
136	* Checks to see if the specified email address has a Gravatar image.
137	*
138	* Thanks Tom McFarlin https://tommcfarlin.com/check-if-a-user-has-a-gravatar/
139	* @param $email_address string The email of the address of the user to check
140	* @return bool Whether or not the user has a gravatar
141	* @since 1.23.0
142	*/
143	function wpmtst_has_gravatar( $email_address ) {
144	// Build the Gravatar URL by hashing the email address
145	$url = 'http://www.gravatar.com/avatar/' . md5( strtolower( trim ( $email_address ) ) ) . '?d=404';
146
147	// Now check the headers...
148	$headers = @get_headers( $url );
149
150	// If 200 is found, the user has a Gravatar; otherwise, they don't.
151	return preg_match( '\|200\|', $headers[0] ) ? true : false;
152	}
153
154	/**
155	* Before assembling avatar HTML.
156	*
157	* @param $url
158	* @param $id_or_email
159	* @param $args
160	*
161	* @return bool
162	*/
163	function wpmtst_get_avatar( $url, $id_or_email, $args ) {
164	if ( 'if' == WPMST()->atts( 'gravatar' ) && ! wpmtst_has_gravatar( $id_or_email ) )
165	return false;
166
167	return $url;
168	}
169