woocommerce/woocommerce_templates.php

<?php
/**
 * WooCommerce Templates
 * 
 * Handles template usage so that we can use our own templates instead of the theme's.
 *
 * Templates are in the 'templates' folder. woocommerce looks for theme 
 * overides in /theme/woocommerce/ by default  but this can be overwritten with WOOCOMMERCE_TEMPLATE_URL
 *
 * @package		WooCommerce
 * @category	Core
 * @author		WooThemes
 */
function woocommerce_template_loader( $template ) {
	
	if ( is_single() && get_post_type() == 'product' ) {
		
		woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-product' ) );
		
		$template = locate_template( array( 'single-product.php', WOOCOMMERCE_TEMPLATE_URL . 'single-product.php' ) );
		
		if ( ! $template ) $template = woocommerce::plugin_path() . '/templates/single-product.php';
		
	}
	elseif ( is_tax('product_cat') ) {
		
		woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-product_cat' ) );
		
		$template = locate_template(  array( 'taxonomy-product_cat.php', WOOCOMMERCE_TEMPLATE_URL . 'taxonomy-product_cat.php' ) );
		
		if ( ! $template ) $template = woocommerce::plugin_path() . '/templates/taxonomy-product_cat.php';
	}
	elseif ( is_tax('product_tag') ) {
		
		woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-product_tag' ) );
		
		$template = locate_template( array( 'taxonomy-product_tag.php', WOOCOMMERCE_TEMPLATE_URL . 'taxonomy-product_tag.php' ) );
		
		if ( ! $template ) $template = woocommerce::plugin_path() . '/templates/taxonomy-product_tag.php';
	}
	elseif ( is_post_type_archive('product') ||  is_page( get_option('woocommerce_shop_page_id') )) {

		woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-products' ) );
		
		$template = locate_template( array( 'archive-product.php', WOOCOMMERCE_TEMPLATE_URL . 'archive-product.php' ) );
		
		if ( ! $template ) $template = woocommerce::plugin_path() . '/templates/archive-product.php';
		
	}
	
	return $template;

}
add_filter( 'template_include', 'woocommerce_template_loader' );

/**
 * Get template part (for templates like loop)
 */
function woocommerce_get_template_part( $slug, $name = '' ) {
	if ($name=='shop') :
		if (!locate_template(array( 'loop-shop.php', WOOCOMMERCE_TEMPLATE_URL . 'loop-shop.php' ))) :
			load_template( woocommerce::plugin_path() . '/templates/loop-shop.php',false );
			return;
		endif;
	endif;
	get_template_part( WOOCOMMERCE_TEMPLATE_URL . $slug, $name );
}

/**
 * Get the reviews template (comments)
 */
function woocommerce_comments_template($template) {
		
	if(get_post_type() !== 'product') return $template;
	
	if (file_exists( STYLESHEETPATH . '/' . WOOCOMMERCE_TEMPLATE_URL . 'single-product-reviews.php' ))
		return STYLESHEETPATH . '/' . WOOCOMMERCE_TEMPLATE_URL . 'single-product-reviews.php'; 
	else
		return woocommerce::plugin_path() . '/templates/single-product-reviews.php';
}

add_filter('comments_template', 'woocommerce_comments_template' );


/**
 * Get other templates (e.g. product attributes)
 */
function woocommerce_get_template($template_name, $require_once = true) {
	if (file_exists( STYLESHEETPATH . '/' . WOOCOMMERCE_TEMPLATE_URL . $template_name )) load_template( STYLESHEETPATH . '/' . WOOCOMMERCE_TEMPLATE_URL . $template_name, $require_once ); 
	elseif (file_exists( STYLESHEETPATH . '/' . $template_name )) load_template( STYLESHEETPATH . '/' . $template_name , $require_once); 
	else load_template( woocommerce::plugin_path() . '/templates/' . $template_name , $require_once);
}

/**
 * Get other templates (e.g. product attributes) - path
 */
function woocommerce_get_template_file_url($template_name, $ssl = false) {
	if (file_exists( STYLESHEETPATH . '/' . WOOCOMMERCE_TEMPLATE_URL . $template_name )) 
		$return = get_bloginfo('template_url') . '/' . WOOCOMMERCE_TEMPLATE_URL . $template_name; 
	elseif (file_exists( STYLESHEETPATH . '/' . $template_name )) 
		$return = get_bloginfo('template_url') . '/' . $template_name; 
	else 
		$return = woocommerce::plugin_url() . '/templates/' . $template_name;
	
	if (get_option('woocommerce_force_ssl_checkout')=='yes' || is_ssl()) :
		if ($ssl) $return = str_replace('http:', 'https:', $return);
	endif;
	
	return $return;
}

/**
 * Add Body classes based on page/template
 **/
global $woocommerce_body_classes;

function woocommerce_page_body_classes() {
	
	global $woocommerce_body_classes;
	
	$woocommerce_body_classes = (array) $woocommerce_body_classes;
	
	if (is_checkout() || is_page(get_option('woocommerce_pay_page_id'))) woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-checkout' ) );
	
	if (is_cart()) woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-cart' ) );
	
	if (is_page(get_option('woocommerce_thanks_page_id'))) woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-thanks' ) );
	
	if (is_page(get_option('woocommerce_shop_page_id'))) woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-shop' ) );
	
	if (is_page(get_option('woocommerce_myaccount_page_id')) || is_page(get_option('woocommerce_edit_address_page_id')) || is_page(get_option('woocommerce_view_order_page_id')) || is_page(get_option('woocommerce_change_password_page_id'))) woocommerce_add_body_class( array( 'woocommerce', 'woocommerce-myaccount' ) );	
	
}
add_action('wp_head', 'woocommerce_page_body_classes');

function woocommerce_add_body_class( $class = array() ) {
	
	global $woocommerce_body_classes;
	
	$woocommerce_body_classes = (array) $woocommerce_body_classes;
	
	$woocommerce_body_classes = array_merge($class, $woocommerce_body_classes);
	
}

function woocommerce_body_class($classes) {
	
	global $woocommerce_body_classes;
	
	$woocommerce_body_classes = (array) $woocommerce_body_classes;
	
	$classes = array_merge($classes, $woocommerce_body_classes);
	
	return $classes;
}
add_filter('body_class','woocommerce_body_class');