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EDIT :: class.admin_action.php

<?php

/**
 * Plugin action functionality
 * Used for adding action links to plugin listing, etc.
 * @package Simple Lightbox
 * @subpackage Admin
 * @author Archetyped
 */
class SLB_Admin_Action extends SLB_Admin_View {
	/* Properties */
	
	protected $parent_required = false;
	
	public $hook_prefix = 'admin_action';
	
	/* Init */
	
	/**
	 * Init
	 * @param string $id ID
	 * @param array $labels Labels
	 * @param obj $data Action data
	 * @return obj Current instance
	 */
	function __construct($id, $labels, $data = null) {
		parent::__construct($id, $labels);
		// Default options instance
		if ( !empty($data) ) {
			$this->add_content('data', $data);
		}
		return $this;
	}
	
	/* Handlers */
	
	/**
	 * Default handler
	 * Handles action
	 * @return string Status message (success, fail, etc.)
	 */
	public function handle() {
		// Validate user
		if ( ! current_user_can('activate_plugins') || ! check_admin_referer($this->get_id()) )
			wp_die(__('Access Denied', 'simple-lightbox'));
		
		// Get data
		$content = $this->get_content();
		
		$success = true;
		
		// Iterate through data
		$hook = $this->util->get_hook($this->get_id_raw());
		foreach ( $content as $c ) {
			// Trigger action
			$res = apply_filters($hook, $success, $c->data, $this);
			// Set result
			if ( !!$success ) {
				$success = $res;
			}
		}
		
		// Set Status Message
		$lbl = ( $success ) ? 'success' : 'failure';
		$this->set_message($this->get_label($lbl));
	}
	
	/**
	 * Get URI
	 * @see Admin_View::get_uri()
	 */
	public function get_uri($file = null, $format = null) {
		return wp_nonce_url(add_query_arg($this->get_query_args(), remove_query_arg($this->get_query_args_remove(), $_SERVER['REQUEST_URI'])), $this->get_id());
	}
	
	protected function get_query_args() {
		return array (
			'action'					=> $this->add_prefix('admin'),
			$this->add_prefix('type')	=> 'view',
			$this->add_prefix('group')	=> 'action',
			$this->add_prefix('obj')	=> $this->get_id_raw()
		);
	}
	
	protected function get_query_args_remove() {
		$args_r = array (
			'_wpnonce',
			$this->add_prefix('action')
		);
		
		return array_unique( array_merge( array_keys( $this->get_query_args() ), $args_r ) );
	}
	
	public function get_link_attr() {
		return array (
			'class' 	=> 'delete',
			'onclick'	=> "return confirm('" . $this->get_label('confirm') . "')"
		);
	}
	
	/* Content */
	
	/**
	 * Save options
	 */
	public function add_content($id, $data) {
		return parent::add_content($id, array('data' => $data));
	}
}

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EDIT :: class.admin_action.php