ID ) );
// Set orientation and image constraint classes
if ( isset( $image_meta['width'], $image_meta['height'] ) ) {
// Use small classes when original image size is too small
if ( $image_meta['width'] <= $image_size_threshhold || $image_meta['height'] <= $image_size_threshhold ) {
$classes[] = 'grid-item-small';
}
// Use small class to make the grid-item images size conform to post-title size instead of image size
if ( ( $image_meta['width'] > $image_meta['height'] ) &&
( ( $image_meta['width'] / $image_meta['height'] ) <= 1 ) ) {
$classes[] = 'grid-item-small';
}
// Landscape images
if ( $image_meta['width'] >= $image_meta['height'] ) {
$classes[] = 'grid-item-landscape';
// Portrait images
} else {
$classes[] = 'grid-item-portrait';
}
}
// Get featured content settings and options
$featured_options = get_option( 'featured-content' );
$featured_tag_name = isset( $featured_options['tag-name'] ) ? $featured_options['tag-name'] : '';
if ( ! empty( $featured_tag_name ) && has_tag( $featured_tag_name, $post->ID ) ) {
$classes[] = 'grid-item-featured';
}
}
return $classes;
}
add_filter( 'post_class', 'altofocus_post_classes' );
/**
* Add a pingback url auto-discovery header for singularly identifiable articles.
*/
function altofocus_pingback_header() {
if ( is_singular() && pings_open() ) {
echo '';
}
}
add_action( 'wp_head', 'altofocus_pingback_header' );
/**
* Slideshow Gallery Filter
*
* Replaces the default gallery when type=slideshow is used
* See: componenets/post/content-single.php
* Source: https://wordpress.stackexchange.com/a/64022
*/
function altofocus_slideshow_gallery_filter( $output, $attr ) {
$id = null;
$order = null;
$size = null;
global $post;
static $count = 0;
if ( $count > 0 ) {
return $output; // Ensure the gallery output is replaced once.
}
static $instance = 0;
$instance++;
// We're trusting author input, so let's at least make sure it looks like a valid orderby statement
if ( isset( $attr['orderby'] ) ) {
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
if ( !$attr['orderby'] ) {
unset( $attr['orderby'] );
}
}
$short_atts = shortcode_atts(array(
'order' => 'ASC',
'orderby' => 'menu_order ID',
'id' => $post->ID,
'itemtag' => 'li',
'icontag' => null,
'captiontag' => 'p',
'columns' => 3,
'size' => 'large',
'include' => '',
'exclude' => ''
), $attr);
extract( $short_atts );
$id = intval($id);
if ( 'RAND' == $order ) {
$orderby = 'none';
}
if ( ! empty( $include ) ) {
$include = preg_replace( '/[^0-9,]+/', '', $include );
$_attachments = get_posts( array( 'include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby ) );
$attachments = array();
foreach ( $_attachments as $key => $val ) {
$attachments[$val->ID] = $_attachments[$key];
}
} elseif ( !empty($exclude) ) {
$exclude = preg_replace( '/[^0-9,]+/', '', $exclude );
$attachments = get_children( array('post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
} else {
$attachments = get_children( array('post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby) );
}
if ( empty( $attachments ) ) {
return '';
}
// The gallery output
$selector = "gallery-{$instance}";
$size_class = sanitize_html_class( $size );
$output = "";
foreach ( $attachments as $att_id => $attachment ) {
// Get image, meta & caption
$image_link = wp_get_attachment_image( $att_id, $size );
$image_meta = wp_get_attachment_metadata( $att_id );
$image_caption = $attachment->post_excerpt;
// Set orientation
$orientation = '';
if ( isset( $image_meta['height'], $image_meta['width'] ) )
$orientation = ( $image_meta['height'] > $image_meta['width'] ) ? 'portrait' : 'landscape';
// Image markup
$output .= "<{$itemtag} class=\"slide {$orientation}\">";
$output .= $image_link;
// Add caption if it exists
if ( ! empty( $image_caption ) )
$output .= '' . $image_caption . '';
$output .= "";
}
$output .= '';
$count++; // Update counter after successful replacement.
return $output;
}