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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 mozilla_dom_MenuBarListener_h
#define mozilla_dom_MenuBarListener_h
#include "mozilla/Attributes.h"
#include "mozilla/EventForwards.h"
#include "nsIDOMEventListener.h"
namespace mozilla::dom {
class Document;
class EventTarget;
class KeyboardEvent;
class XULMenuBarElement;
class XULButtonElement;
class MenuBarListener final : public nsIDOMEventListener {
public:
explicit MenuBarListener(XULMenuBarElement&);
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMEVENTLISTENER
// Should be called when unbound from the document and so on.
void Detach();
protected:
virtual ~MenuBarListener();
bool IsMenuOpen() const;
MOZ_CAN_RUN_SCRIPT nsresult KeyUp(Event* aMouseEvent);
MOZ_CAN_RUN_SCRIPT nsresult KeyDown(Event* aMouseEvent);
MOZ_CAN_RUN_SCRIPT nsresult KeyPress(Event* aMouseEvent);
MOZ_CAN_RUN_SCRIPT nsresult Blur(Event* aEvent);
MOZ_CAN_RUN_SCRIPT nsresult OnWindowDeactivated(Event* aEvent);
MOZ_CAN_RUN_SCRIPT nsresult MouseDown(Event* aMouseEvent);
MOZ_CAN_RUN_SCRIPT nsresult Fullscreen(Event* aEvent);
/**
* Given a key event for an Alt+shortcut combination,
* return the menu, if any, that would be opened. If aPeek
* is false, then play a beep and deactivate the menubar on Windows.
*/
XULButtonElement* GetMenuForKeyEvent(KeyboardEvent& aKeyEvent);
/**
* Call MarkAsReservedByChrome if the user's preferences indicate that
* the key should be chrome-only.
*/
void ReserveKeyIfNeeded(Event* aKeyEvent);
// This should only be called by the MenuBarListener during event dispatch.
enum class ByKeyboard : bool { No, Yes };
MOZ_CAN_RUN_SCRIPT void ToggleMenuActiveState(ByKeyboard);
bool Destroyed() const { return !mMenuBar; }
// The menu bar object. Safe because it keeps us alive.
XULMenuBarElement* mMenuBar;
// The event target to listen to the events.
//
// Weak reference is safe because we clear the listener on unbind from the
// document.
Document* mEventTarget;
// Whether or not the ALT key is currently down.
bool mAccessKeyDown = false;
// Whether or not the ALT key down is canceled by other action.
bool mAccessKeyDownCanceled = false;
};
} // namespace mozilla::dom
#endif // #ifndef mozilla_dom_MenuBarListener_h
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