106 lines
3.6 KiB
PHP
106 lines
3.6 KiB
PHP
<?php
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//Based on Roots Sage Gallery: https://github.com/roots/sage/blob/5b9786b8ceecfe717db55666efe5bcf0c9e1801c/lib/gallery.php
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// Remove built in shortcode
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remove_shortcode('gallery', 'gallery_shortcode');
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// Replace with custom shortcode
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function shortcode_gallery($attr) {
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$post = get_post();
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static $instance = 0;
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$instance++;
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if (!empty($attr['ids'])) {
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if (empty($attr['orderby'])) {
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$attr['orderby'] = 'post__in';
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}
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$attr['include'] = $attr['ids'];
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}
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$output = apply_filters('post_gallery', '', $attr);
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if ($output != '') {
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return $output;
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}
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if (isset($attr['orderby'])) {
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$attr['orderby'] = sanitize_sql_orderby($attr['orderby']);
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if (!$attr['orderby']) {
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unset($attr['orderby']);
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}
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}
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extract(shortcode_atts([
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'order' => 'ASC',
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'orderby' => 'menu_order ID',
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'id' => $post->ID,
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'itemtag' => '',
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'icontag' => '',
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'captiontag' => '',
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'columns' => 3,
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'size' => 'thumbnail',
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'include' => '',
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'exclude' => '',
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'link' => ''
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], $attr));
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$id = intval($id);
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$columns = (12 % $columns == 0) ? $columns : 3;
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$grid = sprintf('col-sm-%1$s col-lg-%1$s', 12 / $columns);
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if ($order === 'RAND') {
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$orderby = 'none';
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}
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if (!empty($include)) {
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$_attachments = get_posts(['include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby]);
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$attachments = [];
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foreach ($_attachments as $key => $val) {
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$attachments[$val->ID] = $_attachments[$key];
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}
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} elseif (!empty($exclude)) {
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$attachments = get_children(['post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby]);
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} else {
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$attachments = get_children(['post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby]);
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}
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if (empty($attachments)) {
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return '';
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}
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if (is_feed()) {
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$output = "\n";
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foreach ($attachments as $att_id => $attachment) {
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$output .= wp_get_attachment_link($att_id, $size, true) . "\n";
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}
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return $output;
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}
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$unique = (get_query_var('page')) ? $instance . '-p' . get_query_var('page') : $instance;
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$output = '<div class="gallery gallery-' . $id . '-' . $unique . '">';
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$i = 0;
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foreach ($attachments as $id => $attachment) {
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switch($link) {
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case 'file':
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$image = wp_get_attachment_link($id, $size, false, false);
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break;
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case 'none':
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$image = wp_get_attachment_image($id, $size, false, ['class' => 'thumbnail img-thumbnail']);
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break;
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default:
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$image = wp_get_attachment_link($id, $size, true, false);
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break;
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}
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$output .= ($i % $columns == 0) ? '<div class="row gallery-row">' : '';
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$output .= '<div class="' . $grid .'">' . $image;
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if (trim($attachment->post_excerpt)) {
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$output .= '<div class="caption hidden">' . wptexturize($attachment->post_excerpt) . '</div>';
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}
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$output .= '</div>';
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$i++;
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$output .= ($i % $columns == 0) ? '</div>' : '';
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}
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$output .= ($i % $columns != 0 ) ? '</div>' : '';
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$output .= '</div>';
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return $output;
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}
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add_shortcode('gallery', 'shortcode_gallery');
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/**
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* Add class="thumbnail img-thumbnail" to attachment items
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*/
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function attachment_link_class($html) {
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$html = str_replace('<a', '<a class="thumbnail img-thumbnail"', $html);
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return $html;
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}
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add_filter('wp_get_attachment_link', 'attachment_link_class', 10, 1);
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