From e47d110f28e4319eaf76cd796ab5da0245c41afe Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Wed, 6 Jun 2018 14:29:40 +0300
Subject: [PATCH] Fix cascade popup menus in Linux.

Fixes #4749.
---
 Telegram/SourceFiles/ui/widgets/popup_menu.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Telegram/SourceFiles/ui/widgets/popup_menu.cpp b/Telegram/SourceFiles/ui/widgets/popup_menu.cpp
index 18ea6ec4e..e808d1367 100644
--- a/Telegram/SourceFiles/ui/widgets/popup_menu.cpp
+++ b/Telegram/SourceFiles/ui/widgets/popup_menu.cpp
@@ -270,6 +270,10 @@ void PopupMenu::childHiding(PopupMenu *child) {
 	if (_activeSubmenu && _activeSubmenu == child) {
 		_activeSubmenu = SubmenuPointer();
 	}
+	if (!_hiding && !isHidden()) {
+		windowHandle()->requestActivate();
+		activateWindow();
+	}
 }
 
 void PopupMenu::setOrigin(PanelAnimation::Origin origin) {