зеркало из https://github.com/mozilla/gecko-dev.git
79 строки
2.5 KiB
C++
79 строки
2.5 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_dom_MenuBarListener_h
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#define mozilla_dom_MenuBarListener_h
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#include "mozilla/Attributes.h"
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#include "mozilla/EventForwards.h"
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#include "nsIDOMEventListener.h"
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namespace mozilla::dom {
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class Document;
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class EventTarget;
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class KeyboardEvent;
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class XULMenuBarElement;
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class XULButtonElement;
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class MenuBarListener final : public nsIDOMEventListener {
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public:
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explicit MenuBarListener(XULMenuBarElement&);
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NS_DECL_ISUPPORTS
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NS_DECL_NSIDOMEVENTLISTENER
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// Should be called when unbound from the document and so on.
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void Detach();
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protected:
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virtual ~MenuBarListener();
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bool IsMenuOpen() const;
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MOZ_CAN_RUN_SCRIPT nsresult KeyUp(Event* aMouseEvent);
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MOZ_CAN_RUN_SCRIPT nsresult KeyDown(Event* aMouseEvent);
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MOZ_CAN_RUN_SCRIPT nsresult KeyPress(Event* aMouseEvent);
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MOZ_CAN_RUN_SCRIPT nsresult Blur(Event* aEvent);
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MOZ_CAN_RUN_SCRIPT nsresult OnWindowDeactivated(Event* aEvent);
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MOZ_CAN_RUN_SCRIPT nsresult MouseDown(Event* aMouseEvent);
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MOZ_CAN_RUN_SCRIPT nsresult Fullscreen(Event* aEvent);
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/**
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* Given a key event for an Alt+shortcut combination,
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* return the menu, if any, that would be opened. If aPeek
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* is false, then play a beep and deactivate the menubar on Windows.
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*/
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XULButtonElement* GetMenuForKeyEvent(KeyboardEvent& aKeyEvent);
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/**
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* Call MarkAsReservedByChrome if the user's preferences indicate that
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* the key should be chrome-only.
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*/
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void ReserveKeyIfNeeded(Event* aKeyEvent);
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// This should only be called by the MenuBarListener during event dispatch.
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enum class ByKeyboard : bool { No, Yes };
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MOZ_CAN_RUN_SCRIPT void ToggleMenuActiveState(ByKeyboard);
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bool Destroyed() const { return !mMenuBar; }
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// The menu bar object. Safe because it keeps us alive.
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XULMenuBarElement* mMenuBar;
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// The event target to listen to the events.
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//
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// Weak reference is safe because we clear the listener on unbind from the
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// document.
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Document* mEventTarget;
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// Whether or not the ALT key is currently down.
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bool mAccessKeyDown = false;
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// Whether or not the ALT key down is canceled by other action.
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bool mAccessKeyDownCanceled = false;
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};
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} // namespace mozilla::dom
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#endif // #ifndef mozilla_dom_MenuBarListener_h
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