From 1a957f9faa7491b5854ddc6a9a3747e20c63fcda Mon Sep 17 00:00:00 2001
From: Andrew White <andyw@pixeltrix.co.uk>
Date: Mon, 6 Feb 2012 12:24:40 +0000
Subject: [PATCH 1/2] Apply the current-cat-parent class to the top level
 category

The category widget does not add a class to the topmost category to
indicate that it is the parent of the current category. This commit
fixes this by applying the standard 'current-cat-parent' class.
---
 widgets/widget-product_categories.php | 1 +
 1 file changed, 1 insertion(+)

diff --git a/widgets/widget-product_categories.php b/widgets/widget-product_categories.php
index dfe52d7c3de..27d08297485 100644
--- a/widgets/widget-product_categories.php
+++ b/widgets/widget-product_categories.php
@@ -104,6 +104,7 @@ class WooCommerce_Widget_Product_Categories extends WP_Widget {
 				echo '<li class="cat-item cat-item-'.$cat->term_id;
 				
 				if (is_tax('product_cat', $cat->slug)) echo ' current-cat';
+				if ($current_cat_parent->term_id==$cat->term_id) echo ' current-cat-parent';
 				
 				echo '"><a href="'.get_term_link( $cat->slug, 'product_cat' ).'">'.$cat->name.'</a>';
 				

From 9572ef1f2d3d9556039fc481d775948d4201f842 Mon Sep 17 00:00:00 2001
From: Andrew White <andyw@pixeltrix.co.uk>
Date: Mon, 6 Feb 2012 13:14:52 +0000
Subject: [PATCH 2/2] Don't apply class when the top level category is
 selected.

---
 widgets/widget-product_categories.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/widgets/widget-product_categories.php b/widgets/widget-product_categories.php
index 27d08297485..52fe01545e4 100644
--- a/widgets/widget-product_categories.php
+++ b/widgets/widget-product_categories.php
@@ -104,7 +104,9 @@ class WooCommerce_Widget_Product_Categories extends WP_Widget {
 				echo '<li class="cat-item cat-item-'.$cat->term_id;
 				
 				if (is_tax('product_cat', $cat->slug)) echo ' current-cat';
-				if ($current_cat_parent->term_id==$cat->term_id) echo ' current-cat-parent';
+				if ($current_cat && $current_cat_parent
+						&& $current_cat_parent->term_id == $cat->term_id 
+						&& $current_cat_parent->term_id != $current_cat->term_id) echo ' current-cat-parent';
 				
 				echo '"><a href="'.get_term_link( $cat->slug, 'product_cat' ).'">'.$cat->name.'</a>';