gecko/dom/base/nsDOMWindowUtils.h

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#include "nsAutoPtr.h"
#include "nsWeakReference.h"

#include "nsIDOMWindowUtils.h"

class nsGlobalWindow;

class nsDOMWindowUtils : public nsIDOMWindowUtils,
                         public nsSupportsWeakReference
{
public:
  nsDOMWindowUtils(nsGlobalWindow *aWindow);
  ~nsDOMWindowUtils();
  NS_DECL_ISUPPORTS
  NS_DECL_NSIDOMWINDOWUTILS

protected:
  nsRefPtr<nsGlobalWindow> mWindow;

  // If aOffset is non-null, it gets filled in with the offset of the root
  // frame of our window to the nearest widget in the app units of our window.
  // Add this offset to any event offset we're given to make it relative to the
  // widget returned by GetWidget.
  nsIWidget* GetWidget(nsPoint* aOffset = nsnull);
  nsIWidget* GetWidgetForElement(nsIDOMElement* aElement);

  nsPresContext* GetPresContext();
};