From 234871ceb0e5145fddcccf9e6ddba4345d1fdbc7 Mon Sep 17 00:00:00 2001
From: Alex Tri <mail@alextri.ru>
Date: Thu, 14 Mar 2019 12:17:50 +0300
Subject: [PATCH] =?UTF-8?q?=D0=9B=D0=BE=D0=B3=D0=B3=D0=B5=D1=80=20=D1=83?=
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---
 JiraTimeBotForm/Logger.cs | 14 ++++++--------
 1 file changed, 6 insertions(+), 8 deletions(-)

diff --git a/JiraTimeBotForm/Logger.cs b/JiraTimeBotForm/Logger.cs
index 9c484f8..bd4cf30 100644
--- a/JiraTimeBotForm/Logger.cs
+++ b/JiraTimeBotForm/Logger.cs
@@ -7,25 +7,23 @@ namespace JiraTimeBotForm
     public class Logger : ILog
     {
         private readonly TextBox _txt;
+        private readonly AppendLog _safeAppender;
 
         public Logger(TextBox txt)
         {
             _txt = txt;
+            _safeAppender = text => _txt.AppendText(text);
+
         }
 
         private void AppendText(string message)
         {
             message = $"{DateTime.Now:HH:mm} {message}";
-
-            if (string.IsNullOrEmpty(_txt.Text))
-            {
-                _txt.Text = message;
-                return;
-            }
-
-            _txt.Text += Environment.NewLine + message;
+            _txt.Invoke(_safeAppender, message + Environment.NewLine);
         }
 
+        private delegate void AppendLog(string text);
+
         public void Info([Localizable(false)] string message)
         {
             AppendText(message);