From 2b5df331bd2208dce61316a3fbb06b01e48201cf Mon Sep 17 00:00:00 2001
From: Ilya Fedin <fedin-ilja2010@ya.ru>
Date: Wed, 1 Jul 2020 06:24:54 +0400
Subject: [PATCH] Install Qt log handler

---
 Telegram/SourceFiles/core/launcher.cpp | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/Telegram/SourceFiles/core/launcher.cpp b/Telegram/SourceFiles/core/launcher.cpp
index 006639ec0f..46066bfff8 100644
--- a/Telegram/SourceFiles/core/launcher.cpp
+++ b/Telegram/SourceFiles/core/launcher.cpp
@@ -282,6 +282,19 @@ void Launcher::init() {
 
 	prepareSettings();
 
+	static QtMessageHandler originalMessageHandler = nullptr;
+	originalMessageHandler = qInstallMessageHandler([](
+		QtMsgType type,
+		const QMessageLogContext &context,
+		const QString &msg) {
+		if (originalMessageHandler) {
+			originalMessageHandler(type, context, msg);
+		}
+		if (Logs::DebugEnabled() || !Logs::started()) {
+			LOG((msg));
+		}
+	});
+
 	QApplication::setApplicationName(qsl("TelegramDesktop"));
 
 #if defined Q_OS_UNIX && !defined Q_OS_MAC && QT_VERSION >= QT_VERSION_CHECK(5, 7, 0)