StaticPressでモバイル用に書き出すサンプルプラグイン（WP SiteManager向け） sp ディレクトリに書き出される。

staticpress-for-mobile.php

<?php
/*
Plugin Name: StaticPress for Mobile
Plugin URI: 
Description: 
Author: Hitoshi Omagari
Version: 1.0
Author URI: 
*/

class StaticPress_for_Mobile {
	
	var $remote_get_option;
	var $enable_theme_dirs;
	
	public function __construct() {
		// モバイル用テーマの取得（WP SiteManager用）
		add_action( 'init'                                        , array( $this, 'init' ) );
		// モバイル用テーマのファイルを書き出すように
		add_action( 'StaticPress::update_url'                     , array( $this, 'enable_mobile_themes' ) );
		// モバイル用のチェックボックスを出力
		add_action( 'StaticPress::static_press_page_button_before', array( $this, 'add_mobile_check' ) );
		// ajaxにチェックボックスの状態が渡るようにする
		add_action( 'StaticPress::static_press_init_data'         , array( $this, 'add_mobile_data' ) );
		add_action( 'StaticPress::static_press_fetch_data'        , array( $this, 'add_mobile_data' ) );
		// モバイル用書き出しの場合にフィルターフックをかける
		add_action( 'StaticPress::pre_ajax_init'                  , array( $this, 'add_mobile_filter' ) );
		add_action( 'StaticPress::pre_ajax_fetch'                 , array( $this, 'add_mobile_filter' ) );
		// google sitemap xmlも自動化
		add_filter( 'StaticPress::get_urls'                       , array( $this, 'add_sitemap_url' ) );
		add_filter( 'StaticPress::static_files_filter'            , array( $this, 'allow_xsl_file' ) );

		// いらないやつら
		add_filter( 'StaticPress::author_url'                     , '__return_empty_array' );
		add_filter( 'StaticPress::terms_url'                      , '__return_empty_array' );
	}
	
	
	public function init() {
		global $WP_SiteManager;
		$regexes = get_option( 'sitemanager_device_rules', array() );
		$this->enable_theme_dirs = array();
		foreach ( $regexes as $group => $arr ) {
			if ( isset( $arr['theme'] ) && $arr['theme'] ) {
				$theme_dir = '/' . trailingslashit( str_replace( trailingslashit( ABSPATH ), '', WP_CONTENT_DIR . '/themes/' . $arr['theme'] ) );
				$this->enable_theme_dirs[] = $theme_dir;
			}
		}
	}
	
	public function mobile_remote_get_option( $remote_get_option ) {
		$remote_get_option['user-agent'] = 'Mozilla/5.0 (iPhone; CPU iPhone OS 7_0 like Mac OS X) AppleWebKit/537.51.1 (KHTML, like Gecko) Version/7.0 Mobile/11A465 Safari/9537.53';
		return $remote_get_option;
	}
	
	
	public function mobile_file_dest( $file_dest, $url, $static_dir, $static_url ) {
		$file_dest = str_replace( $static_dir, $static_dir . 'sp/', $file_dest );
		return $file_dest;
	}
	
	
	public function enable_mobile_themes( $url ) {
		global $wpdb;

		if ( $url['type'] != 'static_file' ) {
			return $url;
		}

		$table = $wpdb->prefix . 'urls';
		$is_mobile_theme_file = false;
		foreach ( $this->enable_theme_dirs as $dir ) {
			if ( strpos( $url['url'], $dir ) === 0 ) {
				$is_mobile_theme_file = true;
			}
		}

		$dest = rtrim( static_press_admin::static_dir(), '/' ) . $url['url'];
		$source = rtrim( ABSPATH, '/' ) . $url['url'];

		if ( $is_mobile_theme_file && $url['enable'] === 0 && ( ! file_exists( $dest ) || filemtime( $dest ) < filemtime( $source ) ) ) {
			$wpdb->update( $table, array( 'enable' => 1 ), array( 'url' => $url['url'] ), array( '%d' ), array( '%s' ) );
		}
	}

	
	public function add_mobile_check() {
?>
		<label for="mobile-rebuild">
			<input type="checkbox" id="mobile-rebuild">
			モバイル用再構築
		</label>
<?php
	}
	
	
	public function add_mobile_data( $data ) {
		$data .= ", mobile: $('#mobile-rebuild').prop('checked')";
		return $data;
	}
	
	
	public function add_mobile_filter() {
		if ( isset( $_POST['mobile'] ) && $_POST['mobile'] === 'true' ) {
			add_filter( 'StaticPress::remote_get_option' , array( $this, 'mobile_remote_get_option' ) );
			add_filter( 'StaticPress::file_dest'         , array( $this, 'mobile_file_dest' ), 10, 4 );
		}
	}


	public function add_sitemap_url( $urls ) {
		$sitemap_content = wp_remote_get( home_url( '/sitemap.xml' ) );
		if ( ! $sitemap_content || $sitemap_content['response']['code'] != 200 ) {
			return $urls;
		}
		preg_match_all( '#<loc>(.*)</loc>#', $sitemap_content['body'], $matches );
		preg_match_all( '#<lastmod>(.*)</lastmod>#', $sitemap_content['body'], $time_matches );
		$last_modified = max( $time_matches[1] );
		$urls[] = array(
			'type' => 'other_page',
			'url'  => '/sitemap.xml',
			'last_modified' => date( 'Y-m-d H:i:s', strtotime( $last_modified ) ),
		);
		if ( isset( $matches[1] ) && $matches[1] ) {
			foreach ( $matches[1] as $key => $url ) {
				$urls[] = array(
					'type' => 'other_page',
					'url'  => str_replace( home_url(), '', $url ),
					'last_modified' => date( 'Y-m-d H:i:s', strtotime( $time_matches[1][$key] ) ),
				);
			}
		}
		return $urls;
	}


	public function allow_xsl_file( $ext ) {
		$ext[] = 'xsl';
		return $ext;
	}
} // class end.
new StaticPress_for_Mobile;