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Fix gallery shortcode

This commit is contained in:
Grzegorz Witczak 2016-09-22 11:25:47 +02:00 committed by GitHub
parent ea51a869fe
commit 28ec00cf45
1 changed files with 100 additions and 124 deletions
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188
inc/bootstrap-wp-gallery.php
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@ -1,129 +1,105 @@
<?php <?php
//Based on Jeff Hays code and his article here: http://robido.com/wordpress/wordpress-gallery-filter-to-modify-the-html-output-of-the-default-gallery-shortcode-and-style/ //Based on Roots Sage Gallery: https://github.com/roots/sage/blob/5b9786b8ceecfe717db55666efe5bcf0c9e1801c/lib/gallery.php
// Custom filter function to modify default gallery shortcode output
function bootstrap_wp_gallery( $output, $attr ) {
// Remove built in shortcode
remove_shortcode('gallery', 'gallery_shortcode');
// Initialize // Replace with custom shortcode
global $post, $wp_locale; function shortcode_gallery($attr) {
$post = get_post();
// Gallery instance counter
static $instance = 0; static $instance = 0;
$instance++; $instance++;
if (!empty($attr['ids'])) {
// Validate the author's orderby attribute if (empty($attr['orderby'])) {
if ( isset( $attr['orderby'] ) ) { $attr['orderby'] = 'post__in';
$attr['orderby'] = sanitize_sql_orderby( $attr['orderby'] );
if ( ! $attr['orderby'] ) unset( $attr['orderby'] );
} }
$attr['include'] = $attr['ids'];
// Get attributes from shortcode }
extract( shortcode_atts( array( $output = apply_filters('post_gallery', '', $attr);
if ($output != '') {
return $output;
}
if (isset($attr['orderby'])) {
$attr['orderby'] = sanitize_sql_orderby($attr['orderby']);
if (!$attr['orderby']) {
unset($attr['orderby']);
}
}
extract(shortcode_atts([
'order' => 'ASC', 'order' => 'ASC',
'orderby' => 'menu_order ID', 'orderby' => 'menu_order ID',
'id' => $post->ID, 'id' => $post->ID,
'itemtag' => 'div', 'itemtag' => '',
'icontag' => 'div', 'icontag' => '',
'captiontag' => 'div', 'captiontag' => '',
'columns' => 3, 'columns' => 3,
'size' => 'thumbnail', 'size' => 'thumbnail',
'exclude' => '' 'include' => '',
), $attr ) ); 'exclude' => '',
'link' => ''
// Initialize ], $attr));
$id = intval( $id ); $id = intval($id);
$attachments = array(); $columns = (12 % $columns == 0) ? $columns : 3;
if ( $order == 'RAND' ) $orderby = 'none'; $grid = sprintf('col-sm-%1$s col-lg-%1$s', 12 / $columns);
if ($order === 'RAND') {
$orderby = 'none';
if ( ! empty( $include ) ) {
// Include attribute is present
$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 ) );
// Setup attachments array
foreach ( $_attachments as $key => $val ) {
$attachments[ $val->ID ] = $_attachments[ $key ];
} }
if (!empty($include)) {
} else if ( ! empty( $exclude ) ) { $_attachments = get_posts(['include' => $include, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby]);
$attachments = [];
// Exclude attribute is present foreach ($_attachments as $key => $val) {
$exclude = preg_replace( '/[^0-9,]+/', '', $exclude ); $attachments[$val->ID] = $_attachments[$key];
}
// Setup attachments array } elseif (!empty($exclude)) {
$attachments = get_children( array( 'post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby ) ); $attachments = get_children(['post_parent' => $id, 'exclude' => $exclude, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby]);
} else { } else {
// Setup attachments array $attachments = get_children(['post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby]);
$attachments = get_children( array( 'post_parent' => $id, 'post_status' => 'inherit', 'post_type' => 'attachment', 'post_mime_type' => 'image', 'order' => $order, 'orderby' => $orderby ) );
} }
if (empty($attachments)) {
if ( empty( $attachments ) ) return ''; return '';
}
// Filter gallery differently for feeds if (is_feed()) {
if ( is_feed() ) {
$output = "\n"; $output = "\n";
foreach ( $attachments as $att_id => $attachment ) $output .= wp_get_attachment_link( $att_id, $size, true ) . "\n"; foreach ($attachments as $att_id => $attachment) {
$output .= wp_get_attachment_link($att_id, $size, true) . "\n";
}
return $output; return $output;
} }
$unique = (get_query_var('page')) ? $instance . '-p' . get_query_var('page') : $instance;
// Filter tags and attributes $output = '<div class="gallery gallery-' . $id . '-' . $unique . '">';
$itemtag = tag_escape( $itemtag );
$captiontag = tag_escape( $captiontag );
$columns = intval( $columns );
$itemwidth = $columns > 0 ? floor( 12 / $columns ) : 100;
$float = is_rtl() ? 'right' : 'left';
$selector = "gallery-{$instance}";
// Filter gallery CSS
$output = apply_filters( 'gallery_style', "
<div id='$selector' class='gallery galleryid-{$id} row'>"
);
// Iterate through the attachments in this gallery instance
$i = 0; $i = 0;
foreach ( $attachments as $id => $attachment ) { foreach ($attachments as $id => $attachment) {
switch($link) {
// Attachment link case 'file':
$link = isset( $attr['link'] ) && 'file' == $attr['link'] ? wp_get_attachment_link( $id, $size, false, false ) : wp_get_attachment_link( $id, $size, true, false ); $image = wp_get_attachment_link($id, $size, false, false);
break;
// Start itemtag case 'none':
$output .= "<{$itemtag} class='gallery-item col-md-{$itemwidth}'>"; $image = wp_get_attachment_image($id, $size, false, ['class' => 'thumbnail img-thumbnail']);
break;
// icontag default:
$output .= " $image = wp_get_attachment_link($id, $size, true, false);
<{$icontag} class='gallery-icon'> break;
$link
</{$icontag}>";
if ( $captiontag && trim( $attachment->post_excerpt ) ) {
// captiontag
$output .= "
<{$captiontag} class='gallery-caption'>
" . wptexturize($attachment->post_excerpt) . "
</{$captiontag}>";
} }
$output .= ($i % $columns == 0) ? '<div class="row gallery-row">' : '';
// End itemtag $output .= '<div class="' . $grid .'">' . $image;
$output .= "</{$itemtag}>"; if (trim($attachment->post_excerpt)) {
$output .= '<div class="caption hidden">' . wptexturize($attachment->post_excerpt) . '</div>';
// Line breaks by columns set
if($columns > 0 && ++$i % $columns == 0) $output .= '<br style="clear: both">';
} }
$output .= '</div>';
// End gallery output $i++;
$output .= " $output .= ($i % $columns == 0) ? '</div>' : '';
<br style='clear: both;'> }
</div>\n"; $output .= ($i % $columns != 0 ) ? '</div>' : '';
$output .= '</div>';
return $output; return $output;
} }
add_shortcode('gallery', 'shortcode_gallery');
// Apply filter to default gallery shortcode /**
add_filter( 'post_gallery', 'bootstrap_wp_gallery', 10, 2 ); * Add class="thumbnail img-thumbnail" to attachment items
*/
function attachment_link_class($html) {
$html = str_replace('<a', '<a class="thumbnail img-thumbnail"', $html);
return $html;
}
add_filter('wp_get_attachment_link', 'attachment_link_class', 10, 1);