gecko-dev/widget/cocoa/nsMenuParentX.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef nsMenuParentX_h_
#define nsMenuParentX_h_
#include "mozilla/RefPtr.h"
#include "mozilla/Variant.h"
class nsMenuX;
class nsMenuBarX;
class nsMenuItemX;
// A base class for objects that can be the parent of an nsMenuX or nsMenuItemX.
class nsMenuParentX {
public:
using MenuChild = mozilla::Variant<RefPtr<nsMenuX>, RefPtr<nsMenuItemX>>;
// XXXmstange double-check that this is still needed
virtual nsMenuBarX* AsMenuBar() { return nullptr; }
// Called when aChild becomes visible or hidden, so that the parent can insert
// or remove the child's native menu item from its NSMenu and update its state
// of visible items.
virtual void MenuChildChangedVisibility(const MenuChild& aChild,
bool aIsVisible) = 0;
};
#endif // nsMenuParentX_h_