From d73701c939ec80443c1208563202c0090eedbe2c Mon Sep 17 00:00:00 2001
From: Michael Bucari-Tovo <mbucari1@gmail.com>
Date: Sat, 3 Jul 2021 20:34:50 -0600
Subject: [PATCH] Stop automatic processing if form is closed instead of
 crashing.

---
 .../BookLiberation/AutomatedBackupsForm.cs            | 11 ++++++++---
 .../BookLiberation/ProcessorAutomationController.cs   |  7 +++++--
 2 files changed, 13 insertions(+), 5 deletions(-)

diff --git a/LibationWinForms/BookLiberation/AutomatedBackupsForm.cs b/LibationWinForms/BookLiberation/AutomatedBackupsForm.cs
index f663fe18..485e13be 100644
--- a/LibationWinForms/BookLiberation/AutomatedBackupsForm.cs
+++ b/LibationWinForms/BookLiberation/AutomatedBackupsForm.cs
@@ -24,13 +24,18 @@ namespace LibationWinForms.BookLiberation
             InitializeComponent();
         }
 
-		public void WriteLine(string text)
-			=> logTb.UIThread(() => logTb.AppendText($"{DateTime.Now} {text}{Environment.NewLine}"));
+        public void WriteLine(string text)
+        {
+            if (!IsDisposed)
+                logTb.UIThread(() => logTb.AppendText($"{DateTime.Now} {text}{Environment.NewLine}"));
+        }
 
 		public void FinalizeUI()
         {
             keepGoingCb.Enabled = false;
-            logTb.AppendText("");
+
+            if (!IsDisposed)
+                logTb.AppendText("");
         }
 
         private void AutomatedBackupsForm_FormClosing(object sender, FormClosingEventArgs e) => keepGoingCb.Checked = false;
diff --git a/LibationWinForms/BookLiberation/ProcessorAutomationController.cs b/LibationWinForms/BookLiberation/ProcessorAutomationController.cs
index da02e3c2..9703a66e 100644
--- a/LibationWinForms/BookLiberation/ProcessorAutomationController.cs
+++ b/LibationWinForms/BookLiberation/ProcessorAutomationController.cs
@@ -66,9 +66,9 @@ namespace LibationWinForms.BookLiberation
 
             (Action unsibscribeEvents, LogMe logMe) = attachToBackupsForm(backupBook, automatedBackupsForm);
 
-            automatedBackupsForm.FormClosing += (_, __) => unsibscribeEvents();
-
             await new BackupLoop(logMe, backupBook, automatedBackupsForm).RunBackupAsync();
+
+            unsibscribeEvents();
         }
 
         private static BackupBook getWiredUpBackupBook(EventHandler<LibraryBook> completedAction)
@@ -496,6 +496,9 @@ An error occurred while trying to process this book
                 if (!keepGoing)
                     return;
 
+                if (AutomatedBackupsForm.IsDisposed)
+                    break;
+
                 if (!AutomatedBackupsForm.KeepGoing)
                 {
                     if (AutomatedBackupsForm.KeepGoingVisible && !AutomatedBackupsForm.KeepGoingChecked)