MonoDevelop.Ide.FindInFiles.FindInFilesDialog.SearchReplace C# (CSharp) Method

		internal static void SearchReplace (string findPattern, string replacePattern, Scope scope, FilterOptions options, System.Action UpdateStopButton)
		{
			if (find != null && find.IsRunning) {
				if (!MessageService.Confirm (GettextCatalog.GetString ("There is a search already in progress. Do you want to stop it?"), AlertButton.Stop))
					return;
				lock (searchesInProgress) {
					foreach (var mon in searchesInProgress)
						mon.AsyncOperation.Cancel ();
					searchesInProgress.Clear ();
				}
			}
			
			if (scope == null)
				return;
			
			find = new FindReplace ();

			string pattern = findPattern;
			if (!find.ValidatePattern (options, pattern)) {
				MessageService.ShowError (GettextCatalog.GetString ("Search pattern is invalid"));
				return;
			}

			if (replacePattern != null && !find.ValidatePattern (options, replacePattern)) {
				MessageService.ShowError (GettextCatalog.GetString ("Replace pattern is invalid"));
				return;
			}

			ThreadPool.QueueUserWorkItem (delegate {
				using (ISearchProgressMonitor searchMonitor = IdeApp.Workbench.ProgressMonitors.GetSearchProgressMonitor (true)) {
					searchMonitor.ReportStatus (scope.GetDescription (options, pattern, null));

					lock (searchesInProgress)
						searchesInProgress.Add (searchMonitor);
					if (UpdateStopButton != null) {
						Application.Invoke (delegate {
							UpdateStopButton ();
						});
					}

					DateTime timer = DateTime.Now;
					string errorMessage = null;
						
					try {
						var results = new List<SearchResult> ();
						foreach (SearchResult result in find.FindAll (scope, searchMonitor, pattern, replacePattern, options)) {
							if (searchMonitor.IsCancelRequested)
								return;
							results.Add (result);
						}
						searchMonitor.ReportResults (results);
					} catch (Exception ex) {
						errorMessage = ex.Message;
						LoggingService.LogError ("Error while search", ex);
					}
						
					string message;
					if (errorMessage != null) {
						message = GettextCatalog.GetString ("The search could not be finished: {0}", errorMessage);
						searchMonitor.ReportError (message, null);
					} else if (searchMonitor.IsCancelRequested) {
						message = GettextCatalog.GetString ("Search cancelled.");
						searchMonitor.ReportWarning (message);
					} else {
						string matches = string.Format (GettextCatalog.GetPluralString ("{0} match found", "{0} matches found", find.FoundMatchesCount), find.FoundMatchesCount);
						string files = string.Format (GettextCatalog.GetPluralString ("in {0} file.", "in {0} files.", find.SearchedFilesCount), find.SearchedFilesCount);
						message = GettextCatalog.GetString ("Search completed.") + Environment.NewLine + matches + " " + files;
						searchMonitor.ReportSuccess (message);
					}
					searchMonitor.ReportStatus (message);
					searchMonitor.Log.WriteLine (GettextCatalog.GetString ("Search time: {0} seconds."), (DateTime.Now - timer).TotalSeconds);
					searchesInProgress.Remove (searchMonitor);
				}
				if (UpdateStopButton != null) {
					Application.Invoke (delegate {
						UpdateStopButton ();
					});
				}
			});
		}
	}