Bug 1145448 - Avoid painting native frame on fullscreen window when a…

…ctivate/inactivate. r=jimm --HG-- extra : source : 2142c3433366414d98da4008756932a8765c8a08
shellylin · Apr 13, 2015 · 0125002 · 0125002
1 parent f9a0328
commit 0125002
Showing 1 changed file with 3 additions and 1 deletion.
diff --git a/widget/windows/nsWindow.cpp b/widget/windows/nsWindow.cpp
@@ -4686,7 +4686,9 @@ nsWindow::ProcessMessage(UINT msg, WPARAM& wParam, LPARAM& lParam,
         break;
 
       // let the dwm handle nc painting on glass
-      if(nsUXThemeData::CheckForCompositor())
+      // Never allow native painting if we are on fullscreen
+      if(mSizeMode != nsSizeMode_Fullscreen &&
+         nsUXThemeData::CheckForCompositor())
         break;
 
       if (wParam == TRUE) {