Add null check in OnIndentSelection()

jimfoye · web-flow · commit b139e3989276 · 2017-05-24T21:32:16.000-05:00
Add null check for IndentationStrategy. If this is null (not common, but can legitimately be null), pressing Ctrl+I will crash.
diff --git a/ICSharpCode.AvalonEdit/Editing/EditingCommandHandler.cs b/ICSharpCode.AvalonEdit/Editing/EditingCommandHandler.cs
@@ -641,7 +641,7 @@ static string InvertCase(string text)
 		static void OnIndentSelection(object target, ExecutedRoutedEventArgs args)
 		{
 			TextArea textArea = GetTextArea(target);
-			if (textArea != null && textArea.Document != null) {
+			if (textArea != null && textArea.Document != null && textArea.IndentationStrategy != null) {
 				using (textArea.Document.RunUpdate()) {
 					int start, end;
 					if (textArea.Selection.IsEmpty) {

Original file line number	Diff line number	Diff line change
`@@ -641,7 +641,7 @@ static string InvertCase(string text)`
`641`	`641`	`static void OnIndentSelection(object target, ExecutedRoutedEventArgs args)`
`642`	`642`	`{`
`643`	`643`	`TextArea textArea = GetTextArea(target);`
`644`		`- if (textArea != null && textArea.Document != null) {`
	`644`	`+ if (textArea != null && textArea.Document != null && textArea.IndentationStrategy != null) {`
`645`	`645`	`using (textArea.Document.RunUpdate()) {`
`646`	`646`	`int start, end;`
`647`	`647`	`if (textArea.Selection.IsEmpty) {`