From 244e8299d13efb7a9809bba0bc52f30d9b97b128 Mon Sep 17 00:00:00 2001
From: addshore <addshorewiki@gmail.com>
Date: Thu, 26 Jan 2017 19:36:09 +0100
Subject: [PATCH] EditPage: switch from NS_CATEGORY check to instanceof
 CategoryPage

Change-Id: I0ee3672a3d698eda25191bccbbc10c9e2f9f7546
---
 includes/EditPage.php | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/includes/EditPage.php b/includes/EditPage.php
index e070ca3c29..f171443ff4 100644
--- a/includes/EditPage.php
+++ b/includes/EditPage.php
@@ -3282,14 +3282,14 @@ HTML
 	 */
 	protected function showPreview( $text ) {
 		global $wgOut;
-		if ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
+		if ( $this->mArticle instanceof CategoryPage ) {
 			$this->mArticle->openShowCategory();
 		}
 		# This hook seems slightly odd here, but makes things more
 		# consistent for extensions.
 		Hooks::run( 'OutputPageBeforeHTML', [ &$wgOut, &$text ] );
 		$wgOut->addHTML( $text );
-		if ( $this->mTitle->getNamespace() == NS_CATEGORY ) {
+		if ( $this->mArticle instanceof CategoryPage ) {
 			$this->mArticle->closeShowCategory();
 		}
 	}
-- 
2.20.1