Simple-Templates: The Template-Classes

file1.php

<?php
/**
 * 
 * Abstract class Wp Simple Templates define one method to retrive the defined templates
 * @author Ralf Albert
 *
 */
abstract class WP_Simple_Templates
{
	
	/**
	 * 
	 * Returns the template if it was defined in the template class. If the requested template was not
	 * defined in the template-class, return a wp-error.
	 * @param string $type
	 * @return array|string|object Array with template-strings or a single template-string or wp-error on failure
	 */
	public function get_templates( $type = '' ){
		
		if( '' == $type )
			return NULL;
		
		// if the template-class have a method $type, return the template(s). else return a wp-error
		if( method_exists( $this, $type . '_template' ) ){
			
			$method = $type . '_template';
			return $this->$method();
			
		} else {
		
			return new WP_error(
				'template_error',
				printf(
					'<h4>Template Error</h4>Template <strong>%s</strong> does not exists in <strong>%s</strong>',
					$type,
					get_class( $this )
				)
			);

		}
			
	}
	
	/**
	 * 
	 * Return an array with all available templates from the template-class
	 */
	public function get_available_templates(){

		// get all methods from the abstract class (__CLASS__) and the extended class ($this)
		$self_methods		= get_class_methods( __CLASS__ );
		$extended_methods	= get_class_methods( $this );
		
		// remove the '_template' extension and return the array with template-names
		$templates = array();
		
		foreach( array_diff( $extended_methods, $self_methods ) as $template )
			array_push( $templates, str_replace( '_template', '', $template ) );
			
		return $templates;
		
	}
	
}

/**
 * 
 * Concrete class WP Simple HTML Templates defines the templates
 * @author Ralf Albert
 *
 */

class WP_Simple_HTML_Templates extends WP_Simple_Templates
{
	/**
	 * Returns an array with list templates
	 */
	public function list_template(){

		return array(
			'ol'	=> array(
						'outer'	=> "<ol>\n%inner%</ol>\n",
						'inner'	=> "<li>%item%</li>\n"
			),

			'ul'	=> array(
						'outer'	=> "<ul>\n%inner%</ul>\n",
						'inner'	=> "<li>%item%</li>\n"
			),

			'div'	=> array(
						'outer'	=> "<div>\n%inner%</div>\n",
						'inner'	=> "<p>%item%</p>\n"
			),
		);
	
	}
	
	/**
	 * Returns a headline template with h1-tags
	 */
	public function hone_template(){
	
		return '<h1>%headline%</h1>';
		
	}
	
	/**
	 * Returns a paragraph-template with p-tags
	 */
	public function paragraph_template(){
	
		return '<p>%text%</p>';
		
	}
	
}