Customize P3's Auto Scan URLs

p3-scanner.php

<?php

/*
Plugin Name: P3 Custom Scanner
Plugin URI: http://inside.godaddy.com/
Description: Customize the pages scanned by P3's auto scan mode
Author: GoDaddy.com
Version: 1.0
Author URI: http://www.godaddy.com/
*/

$p3_customizer = new P3_Customizer_Plugin();

register_activation_hook( __FILE__, array( 'P3_Customizer_Plugin', 'activate' ) );
register_uninstall_hook( __FILE__, array( 'P3_Customizer_Plugin', 'uninstall' ) );

class P3_Customizer_Plugin {
	
	public function __construct() {
		add_action( 'admin_init', array( $this, 'register_settings' ) );
		add_action( 'admin_menu', array( $this, 'settings_page' ) );
		add_filter( 'p3_automatic_scan_urls', array( $this, 'auto_scan_pages' ) );
	}

	public static function activate() {
		$urls = array(
			home_url(),
			admin_url()
		);
		update_option( 'p3_customer_urls', $urls );
	}
	
	public static function uninstall() {
		if ( defined( 'WP_UNINSTALL_PLUGIN' ) ) {
			delete_option( 'p3_customizer_urls' );
		}
	}
	
	public function register_settings() {
		$section = 'p3_customizer_settings_section';
		$group = 'p3_customizer_settings_group';
		add_settings_section( $section, __( 'Settings', 'p3_customizer' ), '__return_null', 'p3_customizer-settings' );
		add_settings_field(
			'p3_customizer_urls',
			__( 'URLs to Scan', 'p3_customizer' ),
			array( $this, 'show_p3_customizer_urls' ),
			'p3_customizer-settings',
			$section
		);
		register_setting( $group, 'p3_customizer_urls' );
	}

	public function auto_scan_pages() {
		return array_map( 'trim', preg_split( '/\R/', get_option( 'p3_customizer_urls' ) ) );
	}

	public function settings_page() {
		add_options_page( __( 'P3 Customizer', 'p3_customizer' ), __( 'P3 Customizer', 'p3_customizer' ), 'manage_options', 'p3_customizer-settings', array( $this, 'plugin_options' ) );
	}
	
	public function plugin_options() {

		// Check permissions
		if ( !current_user_can( 'manage_options' ) )  {
			wp_die( __( 'You do not have sufficient permissions to access this page.' ) );
		}

		?>
		<div class="wrap">
			<div id="icon-tools" class="icon32"><br/></div>
			<h2><?php _e( 'P3 Customizer', 'p3_customizer' ); ?></h2>

			<form id="p3_customizer_settings_form" name="p3_customizer_form" method="post" action="options.php">
				
				<?php settings_fields( 'p3_customizer_settings_group' ); ?>
				<?php do_settings_sections( 'p3_customizer-settings' ); ?>
				<?php submit_button(); ?>

			</form>
		</div>
		<?php
	}
	
	public function show_p3_customizer_urls() {
		?>
			<label for="p3_customizer_urls">
				<textarea id="p3_customizer_urls" cols="128" rows="15" name="p3_customizer_urls"><?php echo esc_textarea( get_option( 'p3_customizer_urls' ) ); ?></textarea>
			</label>
		<?php
	}
}