Implemented SD2-1322: Cancelling an in progress search (based on patch by Siegfried Pammer)

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@3042 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/AddIns/Misc/SearchAndReplace/Project/Engine/Search.cs

@@ -81,13 +81,16 @@ namespace SearchAndReplace
 			}
 		}
 		
-		public SearchResultMatch FindNext()
+		public SearchResultMatch FindNext(IProgressMonitor monitor)
 		{
 			// insanity check
 			Debug.Assert(searchStrategy      != null);
 			Debug.Assert(documentIterator    != null);
 			Debug.Assert(textIteratorBuilder != null);
 			
+			if (monitor != null && monitor.IsCancelled)
+				return null;
+			
 			if (info != null && textIterator != null && documentIterator.CurrentFileName != null) {
 				ProvidedDocumentInformation currentInfo = documentIterator.Current;
 				if (!info.Equals(currentInfo)) { // create new iterator, if document changed
@@ -114,7 +117,7 @@ namespace SearchAndReplace
 					textIterator = null;
 				}
 				
-				return FindNext();
+				return FindNext(monitor);
 			}
 			return null;
 		}

src/AddIns/Misc/SearchAndReplace/Project/Engine/SearchReplaceInFilesManager.cs

@@ -60,7 +60,7 @@ namespace SearchAndReplace
 			
 			List<SearchResultMatch> results = new List<SearchResultMatch>();
 			while (true) {
-				SearchResultMatch result = find.FindNext();
+				SearchResultMatch result = find.FindNext(monitor);
 				if (result == null) {
 					break;
 				}

src/AddIns/Misc/SearchAndReplace/Project/Engine/SearchReplaceManager.cs

@@ -108,7 +108,7 @@ namespace SearchAndReplace
 			List<TextEditorControl> textAreas = new List<TextEditorControl>();
 			int count;
 			for (count = 0;; count++) {
-				SearchResultMatch result = SearchReplaceManager.find.FindNext();
+				SearchResultMatch result = SearchReplaceManager.find.FindNext(monitor);
 				
 				if (result == null) {
 					break;
@@ -197,7 +197,7 @@ namespace SearchAndReplace
 			List<TextEditorControl> textAreas = new List<TextEditorControl>();
 			TextEditorControl textArea = null;
 			for (int count = 0;; count++) {
-				SearchResultMatch result = SearchReplaceManager.find.FindNext();
+				SearchResultMatch result = SearchReplaceManager.find.FindNext(monitor);
 				
 				if (result == null) {
 					if (count != 0) {
@@ -282,7 +282,7 @@ namespace SearchAndReplace
 			
 			TextEditorControl textArea = null;
 			while (textArea == null) {
-				SearchResultMatch result = find.FindNext();
+				SearchResultMatch result = find.FindNext(monitor);
 				if (result == null) {
 					ShowNotFoundMessage(monitor);
 					find.Reset();
@@ -361,6 +361,8 @@ namespace SearchAndReplace
 		
 		static void ShowNotFoundMessage(IProgressMonitor monitor)
 		{
+			if (monitor != null && monitor.IsCancelled)
+				return;
 			if (monitor != null) monitor.ShowingDialog = true;
 			MessageBox.Show(WorkbenchSingleton.MainForm,
 			                ResourceService.GetString("Dialog.NewProject.SearchReplace.SearchStringNotFound"),

src/AddIns/Misc/SearchAndReplace/Project/Gui/SearchAndReplacePanel.cs

@@ -97,7 +97,7 @@ namespace SearchAndReplace
 					FindNextInSelection();
 				}
 			} else {
-				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search"))
+				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search", true))
 				{
 					SearchReplaceManager.FindNext(monitor);
 				}
@@ -113,7 +113,7 @@ namespace SearchAndReplace
 					RunAllInSelection(0);
 				}
 			} else {
-				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search"))
+				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search", true))
 				{
 					SearchInFilesManager.FindAll(monitor);
 				}
@@ -128,7 +128,7 @@ namespace SearchAndReplace
 					RunAllInSelection(1);
 				}
 			} else {
-				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search"))
+				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search", true))
 				{
 					SearchReplaceManager.MarkAll(monitor);
 				}
@@ -143,7 +143,7 @@ namespace SearchAndReplace
 					RunAllInSelection(2);
 				}
 			} else {
-				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search"))
+				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search", true))
 				{
 					SearchReplaceManager.ReplaceAll(monitor);
 				}
@@ -158,7 +158,7 @@ namespace SearchAndReplace
 					ReplaceInSelection();
 				}
 			} else {
-				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search"))
+				using (AsynchronousWaitDialog monitor = AsynchronousWaitDialog.ShowWaitDialog("Search", true))
 				{
 					SearchReplaceManager.Replace(monitor);
 				}

src/Main/Base/Project/Src/Gui/Dialogs/AsynchronousWaitDialog.cs

@@ -55,22 +55,38 @@ namespace ICSharpCode.SharpDevelop.Gui
 		/// Shows a wait dialog.
 		/// </summary>
 		/// <param name="titleName">Title of the wait dialog</param>
-		/// <param name="taskName">Name of the current task</param>
-		/// <returns>WaitHandle object - you can use it to access the wait dialog's properties.
-		/// To close the wait dialog, call Dispose() on the WaitHandle</returns>
+		/// <returns>AsynchronousWaitDialog object - you can use it to access the wait dialog's properties.
+		/// To close the wait dialog, call Dispose() on the AsynchronousWaitDialog object</returns>
 		public static AsynchronousWaitDialog ShowWaitDialog(string titleName)
 		{
 			if (titleName == null)
 				throw new ArgumentNullException("titleName");
-			AsynchronousWaitDialog h = new AsynchronousWaitDialog(titleName);
+			AsynchronousWaitDialog h = new AsynchronousWaitDialog(titleName, false);
 			h.Start();
 			return h;
 		}
 		
-		private AsynchronousWaitDialog(string titleName)
+		/// <summary>
+		/// Shows a wait dialog.
+		/// </summary>
+		/// <param name="titleName">Title of the wait dialog</param>
+		/// <param name="allowCancel">Specifies whether a cancel button should be shown.</param>
+		/// <returns>AsynchronousWaitDialog object - you can use it to access the wait dialog's properties.
+		/// To close the wait dialog, call Dispose() on the AsynchronousWaitDialog object</returns>
+		public static AsynchronousWaitDialog ShowWaitDialog(string titleName, bool allowCancel)
+		{
+			if (titleName == null)
+				throw new ArgumentNullException("titleName");
+			AsynchronousWaitDialog h = new AsynchronousWaitDialog(titleName, allowCancel);
+			h.Start();
+			return h;
+		}
+		
+		private AsynchronousWaitDialog(string titleName, bool allowCancel)
 		{
 			this.titleName = titleName;
 			Done(); // set default values for titleName
+			this.allowCancel = allowCancel;
 		}
 		
 		#region Start waiting thread