[WordPress] Change edior-style. front-page,page ／editor-styleのcssをフロントページと各固定ページごとに切り替える

gistfile1.php

if(is_admin() && isset( $_GET['post'] )){
        if($_GET['post']==get_option( 'page_on_front' )){
		 if ( locate_template( array( 'editor-style-front.css' ) ) ) {
			add_editor_style('editor-style-front.css');
		}else{
			add_editor_style();	
		}
	}else{
		if ( locate_template( array( sprintf('editor-style-%s.css' , get_page($_GET['post'])->post_name ) ) ) ) {
			add_editor_style(sprintf('editor-style-%s.css' , get_page($_GET['post'])->post_name ));
		}else{
			add_editor_style();	
		}
	}
}