/**
* Returns the Singleton instance.
*
* @since 1.0.0
* @access public
* @static
*
* @return Attachment_Taxonomy_Edit The Singleton class instance.
*/
public static function instance()
{
if (null === self::$instance) {
self::$instance = new self();
}
return self::$instance;
}
/**
* Bootstraps the plugin.
*
* The textdomain is loaded and actions and filters are hooked in.
* Furthermore the two custom attachment taxonomies the plugin defines by default are added.
*
* @since 1.0.0
* @access public
*/
public function bootstrap()
{
if ($this->is_mu_plugin) {
load_muplugin_textdomain('attachment-taxonomies');
} else {
load_plugin_textdomain('attachment-taxonomies');
}
$core = Attachment_Taxonomies_Core::instance();
add_action('restrict_manage_posts', array($core, 'render_taxonomy_filters'), 10, 1);
add_action('wp_enqueue_media', array($core, 'enqueue_script'));
add_action('wp_enqueue_media', array($core, 'print_styles'));
$edit = Attachment_Taxonomy_Edit::instance();
add_action('edit_attachment', array($edit, 'save_ajax_attachment_taxonomies'), 10, 1);
add_action('add_attachment', array($edit, 'save_ajax_attachment_taxonomies'), 10, 1);
add_filter('wp_prepare_attachment_for_js', array($edit, 'add_taxonomies_to_attachment_js'), 10, 3);
add_filter('attachment_fields_to_edit', array($edit, 'remove_taxonomies_from_attachment_compat'), 10, 2);
add_action('wp_enqueue_media', array($edit, 'adjust_media_templates'));
/**
* Filters the taxonomy class names that will be instantiated by default.
*
* @since 1.0.2
*
* @param array $taxonomy_class_names Array of taxonomy class names.
*/
$taxonomy_class_names = apply_filters('attachment_taxonomy_class_names', array('Attachment_Category', 'Attachment_Tag'));
$taxonomy_class_names = array_filter(array_unique($taxonomy_class_names), 'class_exists');
foreach ($taxonomy_class_names as $class_name) {
$this->add_taxonomy(new $class_name());
}
}
