From 614c860b5c51a1ddf95b41fbec0200023486a477 Mon Sep 17 00:00:00 2001
From: Aaron Schulz <aaron@users.mediawiki.org>
Date: Sun, 4 Feb 2007 18:16:38 +0000
Subject: [PATCH] Restore minor visual updates for rev_deleted

---
 includes/DifferenceEngine.php | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/includes/DifferenceEngine.php b/includes/DifferenceEngine.php
index d218917c33..234adcdac3 100644
--- a/includes/DifferenceEngine.php
+++ b/includes/DifferenceEngine.php
@@ -201,6 +201,10 @@ CONTROL;
 		wfProfileIn( $fname );
 
 		$wgOut->addHTML( "<hr /><h2>{$this->mPagetitle}</h2>\n" );
+		#add deleted rev tag if needed
+		if ( !$this->mNewRev->userCan(Revision::DELETED_TEXT) ) {
+		  	$wgOut->addWikiText( wfMsg( 'rev-deleted-text-permission' ) );
+		}
 
 		if( !$this->mNewRev->isCurrent() ) {
 			$oldEditSectionSetting = $wgOut->parserOptions()->setEditSection( false );
@@ -328,9 +332,12 @@ CONTROL;
 			}
 		}
 
+		#loadtext is permission safe, this just clears out the diff
 		if ( !$this->loadText() ) {
 			wfProfileOut( $fname );
 			return false;
+		} else if ( !$this->mOldRev->userCan(Revision::DELETED_TEXT) || !$this->mNewRev->userCan(Revision::DELETED_TEXT) ) {
+		  return '';
 		}
 
 		$difftext = $this->generateDiffBody( $this->mOldtext, $this->mNewtext );
@@ -469,6 +476,14 @@ CONTROL;
 	 * Add the header to a diff body
 	 */
 	function addHeader( $diff, $otitle, $ntitle, $multi = '' ) {
+		global $wgOut;
+	
+		if ( !$this->mOldRev->userCan(Revision::DELETED_TEXT) ) {
+		   $otitle = '<span class="history-deleted">'.$otitle.'</span>';
+		}
+		if ( !$this->mNewRev->userCan(Revision::DELETED_TEXT) ) {
+		   $ntitle = '<span class="history-deleted">'.$ntitle.'</span>';
+		}
 		$header = "
 			<table border='0' width='98%' cellpadding='0' cellspacing='4' class='diff'>
 			<tr>
-- 
2.20.1