don't hang forever in Dispatch() if there is no event loop

[wxWidgets.git] / src / cocoa / NSView.mm

diff --git a/src/cocoa/NSView.mm b/src/cocoa/NSView.mm
index ec0be69062c0ffb4b16cd6b2dd494aa96fe56e3e..7f880656e6918117bc20fd5b79e36e4017a2bd73 100644 (file)
--- a/src/cocoa/NSView.mm
+++ b/src/cocoa/NSView.mm
@@ -22,6 +22,7 @@
     #include "wx/window.h"
 #endif // WX_PRECOMP
 
+#include "wx/cocoa/ObjcPose.h"
 #include "wx/cocoa/NSView.h"
 
 #import <Appkit/NSView.h>
@@ -35,15 +36,21 @@ WX_IMPLEMENT_OBJC_INTERFACE_HASHMAP(NSView)
 
 void wxCocoaNSView::AssociateNSView(WX_NSView cocoaNSView)
 {
-    sm_cocoaHash.insert(wxCocoaNSViewHash::value_type(cocoaNSView,this));
-    [[NSNotificationCenter defaultCenter] addObserver:(id)sm_cocoaObserver selector:@selector(notificationFrameChanged:) name:@"NSViewFrameDidChangeNotification" object:cocoaNSView];
-    [cocoaNSView setPostsFrameChangedNotifications: YES];
+    if(cocoaNSView)
+    {
+        sm_cocoaHash.insert(wxCocoaNSViewHash::value_type(cocoaNSView,this));
+        [[NSNotificationCenter defaultCenter] addObserver:(id)sm_cocoaObserver selector:@selector(notificationFrameChanged:) name:@"NSViewFrameDidChangeNotification" object:cocoaNSView];
+        [cocoaNSView setPostsFrameChangedNotifications: YES];
+    }
 }
 
 void wxCocoaNSView::DisassociateNSView(WX_NSView cocoaNSView)
 {
-    sm_cocoaHash.erase(cocoaNSView);
-    [[NSNotificationCenter defaultCenter] removeObserver:(id)sm_cocoaObserver name:@"NSViewFrameDidChangeNotification" object:cocoaNSView];
+    if(cocoaNSView)
+    {
+        sm_cocoaHash.erase(cocoaNSView);
+        [[NSNotificationCenter defaultCenter] removeObserver:(id)sm_cocoaObserver name:@"NSViewFrameDidChangeNotification" object:cocoaNSView];
+    }
 }
 
 // ============================================================================