Quelle NativeMenuMac.h Sprache: C

/* -*- Mode: c++; tab-width: 2; indent-tabs-mode: nil; -*- */
/* 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 NativeMenuMac_h
#define NativeMenuMac_h

#include "mozilla/widget/NativeMenu.h"

#include "nsMenuItemIconX.h"
#include "nsMenuX.h"

class nsIContent;
class nsMenuGroupOwnerX;

namespace mozilla {

namespace dom {
class Element;
}

namespace widget {

class NativeMenuMac : public NativeMenu,
                      public nsMenuItemIconX::Listener,
                      public nsMenuX::Observer {
public:
  explicit NativeMenuMac(dom::Element* aElement);

  // NativeMenu
  void ShowAsContextMenu(nsIFrame* aClickedFrame, const CSSIntPoint& aPosition,
                         bool aIsContextMenu) override;
  bool Close() override;
  void ActivateItem(dom::Element* aItemElement, Modifiers aModifiers,
                    int16_t aButton, ErrorResult& aRv) override;
  void OpenSubmenu(dom::Element* aMenuElement) override;
  void CloseSubmenu(dom::Element* aMenuElement) override;
  RefPtr<dom::Element> Element() override;
  void AddObserver(NativeMenu::Observer* aObserver) override {
    mObservers.AppendElement(aObserver);
  }
  void RemoveObserver(NativeMenu::Observer* aObserver) override {
    mObservers.RemoveElement(aObserver);
  }

  // nsMenuItemIconX::Listener
  void IconUpdated() override;

  // nsMenuX::Observer
  void OnMenuWillOpen(dom::Element* aPopupElement) override;
  void OnMenuDidOpen(dom::Element* aPopupElement) override;
  void OnMenuWillActivateItem(dom::Element* aPopupElement,
                              dom::Element* aMenuItemElement) override;
  void OnMenuClosed(dom::Element* aPopupElement) override;

  NSMenu* NativeNSMenu() { return mMenu ? mMenu->NativeNSMenu() : nil; }
  void MenuWillOpen();

  // Returns whether a menu item was found at the specified path.
  bool ActivateNativeMenuItemAt(const nsAString& aIndexString);

  void ForceUpdateNativeMenuAt(const nsAString& aIndexString);
  void Dump();

  // If this menu is the menu of a system status bar item (NSStatusItem),
  // let the menu know about the status item so that it can propagate
  // any icon changes to the status item.
  void SetContainerStatusBarItem(NSStatusItem* aItem);

protected:
  virtual ~NativeMenuMac();

  // Find the deepest nsMenuX which contains aElement, only descending into open
  // menus.
  // Returns nullptr if the element was not found or if the menus on the path
  // were not all open.
  RefPtr<nsMenuX> GetOpenMenuContainingElement(dom::Element* aElement);

  RefPtr<dom::Element> mElement;
  RefPtr<nsMenuGroupOwnerX> mMenuGroupOwner;
  RefPtr<nsMenuX> mMenu;
  nsTArray<NativeMenu::Observer*> mObservers;
  NSStatusItem* mContainerStatusBarItem;

  // Non-zero after a call to ShowAsContextMenu. Stores the handle from the
  // MOZMenuOpeningCoordinator.
  NSInteger mOpeningHandle = 0;
};

}  // namespace widget
}  // namespace mozilla

#endif

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