public function fields() {
		$select_args = array();

		if ( isset( $_GET['post'] ) && is_int( (int) $_GET['post'] ) && isset( $_GET['action'] ) && $_GET['action'] == 'edit' ) {
			$select_args['post__not_in'] = wp_parse_id_list( array( get_the_ID(), $_GET['post'] ) );
		}

		return array(
			'general' => array(
				'main' => array(
					'id'        => array(
						'label'       => __( 'Targeted Popup', 'popup-maker' ),
						'placeholder' => __( 'Choose a Popup', 'popup-maker' ),
						'desc'        => __( 'Choose which popup will be targeted by this trigger.', 'popup-maker' ),
						'type'        => 'select',
						'post_type'   => 'popup',
						'priority'    => 5,
						'required'    => true,
						'options'     => PUM_Helpers::popup_selectlist( $select_args ) + array(
								'custom' => __( 'Custom', 'popup-maker' ),
							),
						'std'         => 0,
					),
					'custom_id' => array(
						'label'        => __( 'Custom Popup ID', 'popup-maker' ),
						'type'         => 'text',
						'dependencies' => array(
							'id' => 'custom',
						),
						'std'          => '',
					),
				),
			),
			'options' => array(
				'main' => array(
					'tag'        => array(
						'label'       => __( 'HTML Tag', 'popup-maker' ),
						'placeholder' => __( 'HTML Tags: button, span etc.', 'popup-maker' ),
						'desc'        => __( 'The HTML tag used to generate the trigger and wrap your text.', 'popup-maker' ),
						'type'        => 'text',
						'std'         => '',
						'priority'    => 10,
						'required'    => true,
					),
					'classes'    => array(
						'label'       => __( 'CSS Class', 'popup-maker' ),
						'placeholder' => __( 'CSS Class', 'popup-maker' ),
						'type'        => 'text',
						'desc'        => __( 'Add additional classes for styling.', 'popup-maker' ),
						'priority'    => 15,
						'std'         => '',
					),
					'class' => array(
					    'type' => 'hidden',
                    ),
					'do_default' => array(
						'type'     => 'checkbox',
						'label'    => __( 'Do not prevent the default click functionality.', 'popup-maker' ),
						'desc'     => __( 'This prevents us from disabling the browsers default action when a trigger is clicked. It can be used to allow a link to a file to both trigger a popup and still download the file.', 'popup-maker' ),
						'priority' => 20,
						'std'      => false,
					),

				),
			),
		);
	}