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<?php
/**
* Featured image functions.
*
* @package Strong_Testimonials
*/
/**
* @param null $size
*
* @return mixed|string
*/
function wpmtst_get_thumbnail( $size = null ) {
if ( ! WPMST()->atts( 'thumbnail' ) )
return '';
// let arg override view setting
$size = ( null === $size ) ? WPMST()->atts( 'thumbnail_size' ) : $size ;
if ( 'custom' == $size ) {
$size = array( WPMST()->atts( 'thumbnail_width' ), WPMST()->atts( 'thumbnail_height' ) );
}
$id = get_the_ID();
$img = '';
// check for a featured image
if ( has_post_thumbnail( $id ) ) {
// show featured image
$img = get_the_post_thumbnail( $id, $size );
} else {
// no featured image, now what?
if ( 'yes' == WPMST()->atts( 'gravatar' ) ) {
// view > gravatar > show gravatar (use default, if not found)
$img = get_avatar( wpmtst_get_field( 'email' ), apply_filters( 'wpmtst_gravatar_size', $size ) );
} elseif ( 'if' == WPMST()->atts( 'gravatar' ) ) {
// view > gravatar > show gravatar only if found (and has email)
if ( wpmtst_get_field( 'email' ) ) {
// get_avatar will return false if not found (via filter)
$img = get_avatar( wpmtst_get_field( 'email' ), apply_filters( 'wpmtst_gravatar_size', $size ) );
}
}
}
return apply_filters( 'wpmtst_thumbnail_img', $img, $id );
}
/**
* Filter the thumbnail image.
* Used to add link for a lightbox. Will not affect avatars.
*
* @param $img
* @param $post_id
*
* @since 1.23.0
* @since 2.9.4 classes and filter
* @since 2.30.0 lightbox_class
*
* @return string
*/
function wpmtst_thumbnail_img( $img, $post_id ) {
if ( WPMST()->atts( 'lightbox' ) ) {
$url = wp_get_attachment_url( get_post_thumbnail_id( $post_id ) );
if ( $url ) {
$class_array = array( WPMST()->atts( 'lightbox_class' ) );
$classes = join( ' ', array_unique( apply_filters( 'wpmtst_thumbnail_link_class', $class_array ) ) );
$img = sprintf( '<a class="%s" href="%s">%s</a>', $classes, esc_url( $url ), $img );
}
}
return $img;
}
add_filter( 'wpmtst_thumbnail_img', 'wpmtst_thumbnail_img', 10, 2 );
/**
* Exclude testimonial thumbnails from Lazy Loading Responsive Images plugin.
*
* @param $attr
* @param $attachment
* @param $size
*
* @since 2.27.0
*
* @return array
*/
function wpmtst_exclude_from_lazyload( $attr, $attachment, $size ) {
$options = get_option( 'wpmtst_options' );
if ( isset( $options['no_lazyload'] ) && $options['no_lazyload'] ) {
if ( 'wpm-testimonial' == get_post_type( $attachment->post_parent ) ) {
$attr['data-no-lazyload'] = 1;
}
}
return $attr;
}
/**
* Add filter if Lazy Loading Responsive Images plugin is active.
*
* @since 2.27.0
*/
function wpmtst_lazyload_check() {
if ( wpmtst_is_plugin_active( 'lazy-loading-responsive-images' ) ) {
add_filter( 'wp_get_attachment_image_attributes', 'wpmtst_exclude_from_lazyload', 10, 3 );
}
}
add_action( 'init', 'wpmtst_lazyload_check' );
/**
* Filter the gravatar size.
*
* @param array|string $size
* @since 1.23.0
* @return mixed
*/
function wpmtst_gravatar_size_filter( $size = array( 150, 150 ) ) {
// avatars are square so get the width of the requested size
if ( is_array( $size ) ) {
// if dimension array
$gravatar_size = $size[0];
} else {
// if named size
$image_sizes = wpmtst_get_image_sizes();
$gravatar_size = $image_sizes[$size]['width'];
}
return $gravatar_size;
}
add_filter( 'wpmtst_gravatar_size', 'wpmtst_gravatar_size_filter' );
/**
* Checks to see if the specified email address has a Gravatar image.
*
* Thanks Tom McFarlin https://tommcfarlin.com/check-if-a-user-has-a-gravatar/
* @param $email_address string The email of the address of the user to check
* @return bool Whether or not the user has a gravatar
* @since 1.23.0
*/
function wpmtst_has_gravatar( $email_address ) {
// Build the Gravatar URL by hashing the email address
$url = 'http://www.gravatar.com/avatar/' . md5( strtolower( trim ( $email_address ) ) ) . '?d=404';
// Now check the headers...
$headers = @get_headers( $url );
// If 200 is found, the user has a Gravatar; otherwise, they don't.
return preg_match( '|200|', $headers[0] ) ? true : false;
}
/**
* Before assembling avatar HTML.
*
* @param $url
* @param $id_or_email
* @param $args
*
* @return bool
*/
function wpmtst_get_avatar( $url, $id_or_email, $args ) {
if ( 'if' == WPMST()->atts( 'gravatar' ) && ! wpmtst_has_gravatar( $id_or_email ) )
return false;
return $url;
}