public static function filter_the_content($content)
{
if (!theme_cache::is_attachment()) {
return $content;
}
global $post;
$post_title = theme_cache::get_the_title($post->post_parent);
if (!wp_attachment_is_image($post->ID)) {
return $content;
}
$current_img_full = wp_get_attachment_image_src($post->ID, 'full');
$current_img_thumbnail = wp_get_attachment_image_src($post->ID, 'thumbnail');
$children = get_children(['post_parent' => $post->post_parent, 'post_status' => 'inherit', 'post_type' => 'attachment', 'order' => 'ASC']);
$children = array_values($children);
$count = count($children);
$child_posts = [];
$current_post_index = 0;
for ($i = 0; $i < $count; ++$i) {
$child_img = wp_get_attachment_image_src($children[$i]->ID, 'thumbnail');
$child_posts[$i] = ['id' => $children[$i]->ID, 'permalink' => theme_cache::get_permalink($children[$i]->ID) . '#main', 'src' => $child_img[0], 'w' => $child_img[1], 'h' => $child_img[2]];
if ($children[$i]->ID == $post->ID) {
$current_post_index = $i;
}
}
unset($child_img);
ob_start();
?>
<div class="attachment-slide">
<div class="attachment-slide-content">
<?php
/** if current is last post */
if ($current_post_index == $count - 1) {
$url_next = 'javascript:;';
$title_next = ___('Already last page');
} else {
$url_next = $child_posts[$current_post_index + 1]['permalink'];
$title_next = ___('Next page');
}
?>
<a href="<?php
echo $url_next;
?>
" title="<?php
echo $title_next;
?>
">
<img src="<?php
echo $current_img_full[0];
?>
" alt="" width="<?php
echo $current_img_full[1];
?>
" height="<?php
echo $current_img_full[2];
?>
">
</a>
</div>
<div class="attachment-slide-thumbnail">
<?php
for ($i = 0; $i < $count; ++$i) {
$class_active = $post->ID === $child_posts[$i]['id'] ? 'active' : null;
?>
<a class="<?php
echo $class_active;
?>
" href="<?php
echo $child_posts[$i]['permalink'];
?>
">
<img src="<?php
echo $child_posts[$i]['src'];
?>
" alt="<?php
echo $post_title;
?>
" width="<?php
echo $child_posts[$i]['w'];
?>
" height="<?php
echo $child_posts[$i]['h'];
?>
">
</a>
<?php
}
?>
</div>
</div>
<?php
$content = ob_get_contents();
ob_end_clean();
return $content;
}
