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<?php
/**
 * Plugin Name: Attachment Taxonomies
 * Plugin URI:  attachment_taxonomies
 * Text Domain: addquicktag
 * Domain Path: /languages
 * Description: 
 * Version:     1.0.0
 * Author:      Frank Bültge
 * Author URI:  http://bueltge.de
 * License:     GPLv3
 */

if ( function_exists( 'add_filter' ) )
	add_action( 'plugins_loaded', array( 'Fb_Attachment_Taxonomies', 'get_object' ) );
/**
 * Add Tags and Categories taxonmies to Attachment with WP 3.5
 */
class Fb_Attachment_Taxonomies {
	
	static private $classobj;
		
	/**
	 * Constructor, init the functions inside WP
	 *
	 * @since   1.0.0
	 * @return  void
	 */
	public function __construct() {
		
		// load translation files
		add_action( 'admin_init', array( $this, 'localize_plugin' ) );
		// add taxonmies
		add_action( 'init', array( $this, 'setup_taxonomies' ) );
	}
	
	/**
	 * Handler for the action 'init'. Instantiates this class.
	 *
	 * @since   1.0.0
	 * @access  public
	 * @return  $classobj
	 */
	public function get_object() {
		
		if ( NULL === self::$classobj ) {
			self::$classobj = new self;
		}
	
		return self::$classobj;
	}
	
	/**
	 * Localize plugin function.
	 *
	 * @uses	load_plugin_textdomain, plugin_basename
	 * @since   2.0.0
	 * @return  void
	 */
	public function localize_plugin() {
		
		load_plugin_textdomain(
			'attachment_taxonomies',
			FALSE,
			dirname( plugin_basename( __FILE__ ) ) . '/languages/'
		);
	}
	
	/**
	 * Setup Taxonomies
	 * Creates 'attachment_tag' and 'attachment_category' taxonomies.
	 * Enhance via filter `fb_attachment_taxonomies`
	 * 
	 * @uses    register_taxonomy, apply_filters
	 * @since   1.0.0
	 * @return  void
	 */
	public function setup_taxonomies() {
		
		$attachment_taxonomies = array();
		
		// Tags
		$labels = array(
			'name'              => _x( 'Attachment Tags', 'taxonomy general name', 'attachment_taxonomies' ),
			'singular_name'     => _x( 'Attachment Tag', 'taxonomy singular name', 'attachment_taxonomies' ),
			'search_items'      => __( 'Search Attachment Tags', 'attachment_taxonomies' ),
			'all_items'         => __( 'All Attachment Tags', 'attachment_taxonomies' ),
			'parent_item'       => __( 'Parent Attachment Tag', 'attachment_taxonomies' ),
			'parent_item_colon' => __( 'Parent Attachment Tag:', 'attachment_taxonomies' ),
			'edit_item'         => __( 'Edit Attachment Tag', 'attachment_taxonomies' ), 
			'update_item'       => __( 'Update Attachment Tag', 'attachment_taxonomies' ),
			'add_new_item'      => __( 'Add New Attachment Tag', 'attachment_taxonomies' ),
			'new_item_name'     => __( 'New Attachment Tag Name', 'attachment_taxonomies' ),
			'menu_name'         => __( 'Attachment Tags', 'attachment_taxonomies' ),
		);
		
		$args = array(
			'hierarchical' => FALSE,
			'labels'       => $labels,
			'show_ui'      => TRUE,
			'query_var'    => TRUE,
			'rewrite'      => TRUE,
		);
		
		$attachment_taxonomies[] = array(
			'taxonomy'  => 'attachment_tag',
			'post_type' => 'attachment',
			'args'      => $args
		);
		
		// Categories
		$labels = array(
			'name'              => _x( 'Attachment Categories', 'taxonomy general name', 'attachment_taxonomies' ),
			'singular_name'     => _x( 'Attachment Category', 'taxonomy singular name', 'attachment_taxonomies' ),
			'search_items'      => __( 'Search Attachment Categories', 'attachment_taxonomies' ),
			'all_items'         => __( 'All Attachment Categories', 'attachment_taxonomies' ),
			'parent_item'       => __( 'Parent Attachment Category', 'attachment_taxonomies' ),
			'parent_item_colon' => __( 'Parent Attachment Category:', 'attachment_taxonomies' ),
			'edit_item'         => __( 'Edit Attachment Category', 'attachment_taxonomies' ), 
			'update_item'       => __( 'Update Attachment Category', 'attachment_taxonomies' ),
			'add_new_item'      => __( 'Add New Attachment Category', 'attachment_taxonomies' ),
			'new_item_name'     => __( 'New Attachment Category Name', 'attachment_taxonomies' ),
			'menu_name'         => __( 'Attachment Category', 'attachment_taxonomies' ),
		);
		
		$args = array(
			'hierarchical' => TRUE,
			'labels'       => $labels,
			'show_ui'      => TRUE,
			'query_var'    => TRUE,
			'rewrite'      => TRUE,
		);
		
		$attachment_taxonomies[] = array(
			'taxonomy'  => 'attachment_category',
			'post_type' => 'attachment',
			'args'      => $args
		);
		
		$attachment_taxonomies = apply_filters( 'fb_attachment_taxonomies', $attachment_taxonomies );
		
		foreach ( $attachment_taxonomies as $attachment_taxonomy ) {
			register_taxonomy(
				$attachment_taxonomy['taxonomy'],
				$attachment_taxonomy['post_type'],
				$attachment_taxonomy['args']
			);
		}
		
	}
	
} // end class