guarding code in case of delayed controller release

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@66741 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/src/osx/iphone/nonownedwnd.mm b/src/osx/iphone/nonownedwnd.mm
index 9c14e09ac387e4937f5ff5560b769fd0be7bf02c..2eed1130352ae4188a7315abd5e87b0a02d38b21 100644 (file)
--- a/src/osx/iphone/nonownedwnd.mm
+++ b/src/osx/iphone/nonownedwnd.mm
@@ -407,15 +407,18 @@ wxWidgetImpl* wxWidgetImpl::CreateContentView( wxNonOwnedWindow* now )
 -(void) viewWillDisappear:(BOOL)animated
 {
     wxWidgetIPhoneImpl* impl = (wxWidgetIPhoneImpl* ) wxWidgetImpl::FindFromWXWidget( [self view] );
-    wxNonOwnedWindow* now = dynamic_cast<wxNonOwnedWindow*> (impl->GetWXPeer());
-    wxNonOwnedWindowIPhoneImpl* nowimpl = dynamic_cast<wxNonOwnedWindowIPhoneImpl*> (now->GetNonOwnedPeer());
-    
-    if ( nowimpl->InitialShowEventSent() )
+    if( impl )
     {
-        wxShowEvent eventShow(now->GetId(), false);
-        eventShow.SetEventObject(now);
-    
-        now->HandleWindowEvent(eventShow);
+        wxNonOwnedWindow* now = dynamic_cast<wxNonOwnedWindow*> (impl->GetWXPeer());
+        wxNonOwnedWindowIPhoneImpl* nowimpl = dynamic_cast<wxNonOwnedWindowIPhoneImpl*> (now->GetNonOwnedPeer());
+        
+        if ( nowimpl->InitialShowEventSent() )
+        {
+            wxShowEvent eventShow(now->GetId(), false);
+            eventShow.SetEventObject(now);
+        
+            now->HandleWindowEvent(eventShow);
+        }
     }
 }