Temporarily disable FileChangeWatcher while renaming files. Should fix forum-10029.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/branches/3.0@4876 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Src/Services/File/FileChangeWatcher.cs

@@ -41,6 +41,26 @@ namespace ICSharpCode.SharpDevelop
 		
 		static HashSet<FileChangeWatcher> activeWatchers = new HashSet<FileChangeWatcher>();
 		
+		static int globalDisableCount;
+		
+		public static void DisableAllChangeWatchers()
+		{
+			WorkbenchSingleton.AssertMainThread();
+			globalDisableCount++;
+			foreach (FileChangeWatcher w in activeWatchers)
+				w.SetWatcher();
+		}
+		
+		public static void EnableAllChangeWatchers()
+		{
+			WorkbenchSingleton.AssertMainThread();
+			if (globalDisableCount == 0)
+				throw new InvalidOperationException();
+			globalDisableCount--;
+			foreach (FileChangeWatcher w in activeWatchers)
+				w.SetWatcher();
+		}
+		
 		FileSystemWatcher watcher;
 		bool wasChangedExternally = false;
 		OpenedFile file;
@@ -96,6 +116,8 @@ namespace ICSharpCode.SharpDevelop
 			
 			if (!enabled)
 				return;
+			if (globalDisableCount > 0)
+				return;
 			if (DetectExternalChangesOption == false)
 				return;
 			

src/Main/Base/Project/Src/Services/File/FileService.cs

@@ -388,6 +388,8 @@ namespace ICSharpCode.SharpDevelop
 		{
 			if (FileUtility.IsEqualFileName(oldName, newName))
 				return false;
+			FileChangeWatcher.DisableAllChangeWatchers();
+			try {
 				FileRenamingEventArgs eargs = new FileRenamingEventArgs(oldName, newName, isDirectory);
 				OnFileRenaming(eargs);
 				if (eargs.Cancel)
@@ -420,6 +422,9 @@ namespace ICSharpCode.SharpDevelop
 				}
 				OnFileRenamed(new FileRenameEventArgs(oldName, newName, isDirectory));
 				return true;
+			} finally {
+				FileChangeWatcher.EnableAllChangeWatchers();
+			}
 		}
 		
 		/// <summary>