From 110dc52897a77aaff6efa33e79a8c3d1396025b7 Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Thu, 3 Oct 2019 10:28:24 +0300
Subject: [PATCH] Don't crash on log calls even without integration.

---
 ui/integration.cpp | 4 ++++
 ui/integration.h   | 1 +
 ui/ui_log.cpp      | 4 +++-
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/ui/integration.cpp b/ui/integration.cpp
index 3a29a37..be754c5 100644
--- a/ui/integration.cpp
+++ b/ui/integration.cpp
@@ -26,6 +26,10 @@ Integration &Integration::Instance() {
 	return *IntegrationInstance;
 }
 
+bool Integration::Exists() {
+	return (IntegrationInstance != nullptr);
+}
+
 void Integration::textActionsUpdated() {
 }
 
diff --git a/ui/integration.h b/ui/integration.h
index bcb20ef..f420a58 100644
--- a/ui/integration.h
+++ b/ui/integration.h
@@ -27,6 +27,7 @@ class Integration {
 public:
 	static void Set(not_null<Integration*> instance);
 	static Integration &Instance();
+	static bool Exists();
 
 	virtual void postponeCall(FnMut<void()> &&callable) = 0;
 	virtual void registerLeaveSubscription(not_null<QWidget*> widget) = 0;
diff --git a/ui/ui_log.cpp b/ui/ui_log.cpp
index 784b958..648985e 100644
--- a/ui/ui_log.cpp
+++ b/ui/ui_log.cpp
@@ -11,7 +11,9 @@
 namespace Ui {
 
 void WriteLogEntry(const QString &message) {
-	Integration::Instance().writeLogEntry(message);
+	if (Integration::Exists()) {
+		Integration::Instance().writeLogEntry(message);
+	}
 }
 
 } // namespace Ui