From 0b64e3727bfbe5d4e5f134a52361ff3e5ed14a96 Mon Sep 17 00:00:00 2001
From: niksedk <nikse.dk@gmail.com>
Date: Sat, 6 Oct 2012 14:07:57 +0000
Subject: [PATCH] Fixed crash when clicking on "Open" file... (first commit
 from 2012)

git-svn-id: https://subtitleedit.googlecode.com/svn/trunk@1406 99eadd0c-20b8-1223-b5c4-2a2b2df33de2
---
 src/Forms/Main.cs | 33 ++++++++++++++++++++++++++-------
 1 file changed, 26 insertions(+), 7 deletions(-)

diff --git a/src/Forms/Main.cs b/src/Forms/Main.cs
index ea45b7642..87916d518 100644
--- a/src/Forms/Main.cs
+++ b/src/Forms/Main.cs
@@ -160,6 +160,7 @@ namespace Nikse.SubtitleEdit.Forms
         private string _lastDoNotPrompt = string.Empty;
         private VideoInfo _videoInfo = null;
         bool _splitDualSami = false;
+        bool _openFileDialogOn = false;
 
         private bool AutoRepeatContinueOn
         {
@@ -1899,21 +1900,39 @@ namespace Nikse.SubtitleEdit.Forms
 
         private void OpenToolStripMenuItemClick(object sender, EventArgs e)
         {
+            openToolStripMenuItem.Enabled = false;
             ReloadFromSourceView();
             OpenNewFile();
+            openToolStripMenuItem.Enabled = true;
         }
 
         private void OpenNewFile()
-        {
+        {            
+            if (_openFileDialogOn)
+                return;
+            _openFileDialogOn = true;
             _lastDoNotPrompt = string.Empty;
             if (!ContinueNewOrExit())
+            {
+                _openFileDialogOn = false;
                 return;
-            openFileDialog1.Title = _languageGeneral.OpenSubtitle;
-            openFileDialog1.FileName = string.Empty;
-            openFileDialog1.Filter = Utilities.GetOpenDialogFilter();
-
-            if (openFileDialog1.ShowDialog(this) == DialogResult.OK)
-              OpenSubtitle(openFileDialog1.FileName, null);
+            }
+            try
+            {
+                openFileDialog1.Title = _languageGeneral.OpenSubtitle;
+                openFileDialog1.FileName = string.Empty;
+                openFileDialog1.Filter = Utilities.GetOpenDialogFilter();
+                if (openFileDialog1.ShowDialog(this) == DialogResult.OK)
+                    OpenSubtitle(openFileDialog1.FileName, null);
+            }
+            catch
+            {
+                System.Diagnostics.Debug.WriteLine("Open file exception - might be called multiple times?");
+            }
+            finally
+            {
+                _openFileDialogOn = false;
+            }
         }
 
         public double CurrentFrameRate