Fixed SD2-998 - Find or replace all in all open documents hangs SharpDevelop if two or more text files are open. The new docking library does not set the ActiveWorkbenchWindow until certain windows messages have been processed which caused the AllOpenDocumentIterator class to not be able to change the active window and kept the search stuck in an infinite loop. The AllOpenDocumentIterator class has been modified to use an index to determine the currently searched document window rather than relying on the ActiveWorkbenchWindow.

git-svn-id: svn://svn.sharpdevelop.net/sharpdevelop/trunk@1941 1ccf3a8d-04fe-1044-b7c0-cef0b8235c61

src/Main/Base/Project/Src/TextEditor/SearchAndReplace/Engine/DocumentIterator/AllOpenDocumentIterator.cs

@@ -18,6 +18,7 @@ namespace SearchAndReplace
 	public class AllOpenDocumentIterator : IDocumentIterator
 	{
 		int  startIndex = -1;
+		int  curIndex   = -1;
 		bool resetted   = true;
 		
 		public AllOpenDocumentIterator()
@@ -27,45 +28,60 @@ namespace SearchAndReplace
 		
 		public string CurrentFileName {
 			get {
-				if (!SearchReplaceUtilities.IsTextAreaSelected) {
+				IViewContent viewContent = GetCurrentTextEditorViewContent();
+				if (viewContent != null) {
+					if (viewContent.FileName == null) {
+						return viewContent.UntitledName;
+					}
+					return viewContent.FileName;
+				}
 				return null;
 			}
-				
-				if (WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent.FileName == null) {
-					return WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent.UntitledName;
 		}
 		
-				return WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent.FileName;
+		IViewContent GetCurrentTextEditorViewContent()
+		{
+			GetCurIndex();
+			if (curIndex >= 0) {
+				IViewContent viewContent = WorkbenchSingleton.Workbench.ViewContentCollection[curIndex];
+				if (viewContent is ITextEditorControlProvider) {
+					return viewContent;
 				}
 			}
-		
-		public ProvidedDocumentInformation Current {
-			get {
-				if (!SearchReplaceUtilities.IsTextAreaSelected) {
 			return null;
 		}
-				TextEditorControl textEditor = (((ITextEditorControlProvider)WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent).TextEditorControl);
 		
+		public ProvidedDocumentInformation Current {
+			get {
+				IViewContent viewContent = GetCurrentTextEditorViewContent();
+				if (viewContent != null) {
+					TextEditorControl textEditor = (((ITextEditorControlProvider)viewContent).TextEditorControl);
 					IDocument document = textEditor.Document;
 					return new ProvidedDocumentInformation(document,
 				    	CurrentFileName,
 				   		textEditor.ActiveTextAreaControl);
 				}
+				return null;
+			}
 		}
 		
-		int GetCurIndex()
+		void GetCurIndex()
 		{
-			for (int i = 0; i < WorkbenchSingleton.Workbench.ViewContentCollection.Count; ++i) {
+			int viewCount = WorkbenchSingleton.Workbench.ViewContentCollection.Count;
+			if (curIndex == -1 || curIndex >= viewCount) {
+				for (int i = 0; i < viewCount; ++i) {
 					if (WorkbenchSingleton.Workbench.ActiveWorkbenchWindow.ViewContent == WorkbenchSingleton.Workbench.ViewContentCollection[i]) {
-					return i;
+						curIndex = i;
+						return;
+					}
 				}
+				curIndex = -1;
 			}
-			return -1;
 		}
 		
 		public bool MoveForward() 
 		{
-			int curIndex =  GetCurIndex();
+			GetCurIndex();
 			if (curIndex < 0) {
 				return false;
 			}
@@ -75,17 +91,16 @@ namespace SearchAndReplace
 				return true;
 			}
 			
-			int nextIndex = (curIndex + 1) % WorkbenchSingleton.Workbench.ViewContentCollection.Count;
-			if (nextIndex == startIndex) {
+			curIndex = (curIndex + 1) % WorkbenchSingleton.Workbench.ViewContentCollection.Count;
+			if (curIndex == startIndex) {
 				return false;
 			}
-			WorkbenchSingleton.Workbench.ViewContentCollection[nextIndex].WorkbenchWindow.SelectWindow();
 			return true;
 		}
 		
 		public bool MoveBackward()
 		{
-			int curIndex =  GetCurIndex();
+			GetCurIndex();
 			if (curIndex < 0) {
 				return false;
 			}
@@ -100,7 +115,6 @@ namespace SearchAndReplace
 			
 			if (curIndex > 0) {
 				--curIndex;
-				WorkbenchSingleton.Workbench.ViewContentCollection[curIndex].WorkbenchWindow.SelectWindow();
 				return true;
 			}
 			return false;
@@ -108,7 +122,9 @@ namespace SearchAndReplace
 		
 		public void Reset() 
 		{
-			startIndex = GetCurIndex();
+			curIndex = -1;
+			GetCurIndex();
+			startIndex = curIndex;
 			resetted = true;
 		}
 	}