Make the 'Long description' textview in FileTypes use the BScrollView::SetBorderHighlighted() method when it is focused, also enable tab-key navigation (which was the whole purpose of creating the custom class used for the field) with the B_NAVIGABLE flag.

git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@42228 a95241bf-73f2-0310-859d-f6bbb57e9c96

src/preferences/filetypes/ApplicationTypeWindow.cpp

@@ -70,8 +70,14 @@ public:
 	virtual						~TabFilteringTextView();
 
 	virtual	void				KeyDown(const char* bytes, int32 count);
+	virtual	void				TargetedByScrollView(BScrollView* scroller);
+	virtual	void				MakeFocus(bool focused = true);
+
+private:
+			BScrollView*		fScrollView;
 };
 
+
 class SupportedTypeItem : public BStringItem {
 public:
 								SupportedTypeItem(const char* type);
@@ -90,6 +96,7 @@ private:
 			::Icon				fIcon;
 };
 
+
 class SupportedTypeListView : public DropTargetListView {
 public:
 								SupportedTypeListView(const char* name,
@@ -109,7 +116,8 @@ public:
 
 TabFilteringTextView::TabFilteringTextView(const char* name)
 	:
-	BTextView(name, B_WILL_DRAW | B_PULSE_NEEDED)
+	BTextView(name, B_WILL_DRAW | B_PULSE_NEEDED | B_NAVIGABLE),
+	fScrollView(NULL)
 {
 }
 
@@ -129,6 +137,23 @@ TabFilteringTextView::KeyDown(const char* bytes, int32 count)
 }
 
 
+void
+TabFilteringTextView::TargetedByScrollView(BScrollView* scroller)
+{
+	fScrollView = scroller;
+}
+
+
+void
+TabFilteringTextView::MakeFocus(bool focused)
+{
+	BTextView::MakeFocus(focused);
+
+	if (fScrollView)
+		fScrollView->SetBorderHighlighted(focused);
+}
+
+
 // #pragma mark -