From fc2e0bf67bb279b960fb50060b6a7b59f0e5afb2 Mon Sep 17 00:00:00 2001
From: Andrew Dolgov <noreply@fakecake.org>
Date: Mon, 8 Feb 2021 17:05:50 +0300
Subject: [PATCH] log viewer: disable previous page on page 1

---
 classes/pref/system.php | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/classes/pref/system.php b/classes/pref/system.php
index bc3bde16f..d91339698 100644
--- a/classes/pref/system.php
+++ b/classes/pref/system.php
@@ -69,7 +69,9 @@ class Pref_System extends Handler_Protected {
 		print "<button dojoType='dijit.form.Button'
 			onclick='Helpers.EventLog.refresh()'>".__('Refresh')."</button>";
 
-		print "<button dojoType='dijit.form.Button'
+		$prev_page_disabled = $page <= 0 ? "disabled" : "";
+
+		print "<button dojoType='dijit.form.Button' $prev_page_disabled
 			onclick='Helpers.EventLog.prevPage()'>".__('&lt;&lt;')."</button>";
 
 		print "<button dojoType='dijit.form.Button' disabled>".T_sprintf('Page %d of %d', $page+1, $total_pages+1)."</button>";