From c129354ca3aabfa6618d0dd645baf1f092c48f06 Mon Sep 17 00:00:00 2001
From: hius07 <62179190+hius07@users.noreply.github.com>
Date: Thu, 6 May 2021 18:27:39 +0300
Subject: [PATCH] Wikipedia: disable 'Clean history' when the history is empty
 (#7637)

---
 frontend/apps/reader/modules/readerwikipedia.lua | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/frontend/apps/reader/modules/readerwikipedia.lua b/frontend/apps/reader/modules/readerwikipedia.lua
index aafeb7e81..3a0b6e6e9 100644
--- a/frontend/apps/reader/modules/readerwikipedia.lua
+++ b/frontend/apps/reader/modules/readerwikipedia.lua
@@ -299,14 +299,18 @@ Where do you want them saved?]])
             },
             {
                 text = _("Clean Wikipedia history"),
+                enabled_func = function()
+                    return wikipedia_history:has("wikipedia_history")
+                end,
                 keep_menu_open = true,
-                callback = function()
+                callback = function(touchmenu_instance)
                     UIManager:show(ConfirmBox:new{
                         text = _("Clean Wikipedia history?"),
                         ok_text = _("Clean"),
                         ok_callback = function()
                             -- empty data table to replace current one
                             wikipedia_history:reset{}
+                            touchmenu_instance:updateItems()
                         end,
                     })
                 end,