зеркало из https://github.com/mozilla/gecko-dev.git
132 строки
4.4 KiB
C++
132 строки
4.4 KiB
C++
/* -*- 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/. */
|
|
|
|
//
|
|
// nsMenuBarFrame
|
|
//
|
|
|
|
#ifndef nsMenuBarFrame_h__
|
|
#define nsMenuBarFrame_h__
|
|
|
|
#include "mozilla/Attributes.h"
|
|
#include "nsAtom.h"
|
|
#include "nsCOMPtr.h"
|
|
#include "nsBoxFrame.h"
|
|
#include "nsMenuFrame.h"
|
|
#include "nsMenuBarListener.h"
|
|
#include "nsMenuParent.h"
|
|
|
|
class nsIContent;
|
|
|
|
namespace mozilla {
|
|
namespace dom {
|
|
class KeyboardEvent;
|
|
} // namespace dom
|
|
} // namespace mozilla
|
|
|
|
nsIFrame* NS_NewMenuBarFrame(nsIPresShell* aPresShell,
|
|
mozilla::ComputedStyle* aStyle);
|
|
|
|
class nsMenuBarFrame final : public nsBoxFrame, public nsMenuParent {
|
|
public:
|
|
NS_DECL_QUERYFRAME
|
|
NS_DECL_FRAMEARENA_HELPERS(nsMenuBarFrame)
|
|
|
|
explicit nsMenuBarFrame(ComputedStyle* aStyle);
|
|
|
|
// nsMenuParent interface
|
|
virtual nsMenuFrame* GetCurrentMenuItem() override;
|
|
NS_IMETHOD SetCurrentMenuItem(nsMenuFrame* aMenuItem) override;
|
|
virtual void CurrentMenuIsBeingDestroyed() override;
|
|
NS_IMETHOD ChangeMenuItem(nsMenuFrame* aMenuItem, bool aSelectFirstItem,
|
|
bool aFromKey) override;
|
|
|
|
NS_IMETHOD SetActive(bool aActiveFlag) override;
|
|
|
|
virtual bool IsMenuBar() override { return true; }
|
|
virtual bool IsContextMenu() override { return false; }
|
|
virtual bool IsActive() override { return mIsActive; }
|
|
virtual bool IsMenu() override { return false; }
|
|
virtual bool IsOpen() override {
|
|
// menubars are considered always open
|
|
return true;
|
|
}
|
|
|
|
bool IsMenuOpen() { return mCurrentMenu && mCurrentMenu->IsOpen(); }
|
|
|
|
void InstallKeyboardNavigator();
|
|
void RemoveKeyboardNavigator();
|
|
|
|
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
|
|
nsIFrame* aPrevInFlow) override;
|
|
|
|
virtual void DestroyFrom(nsIFrame* aDestructRoot,
|
|
PostDestroyData& aPostDestroyData) override;
|
|
|
|
virtual void LockMenuUntilClosed(bool aLock) override {}
|
|
virtual bool IsMenuLocked() override { return false; }
|
|
|
|
// Non-interface helpers
|
|
|
|
// The 'stay active' flag is set when navigating from one top-level menu
|
|
// to another, to prevent the menubar from deactivating and submenus from
|
|
// firing extra DOMMenuItemActive events.
|
|
bool GetStayActive() { return mStayActive; }
|
|
void SetStayActive(bool aStayActive) { mStayActive = aStayActive; }
|
|
|
|
// Called when a menu on the menu bar is clicked on. Returns a menu if one
|
|
// needs to be closed.
|
|
nsMenuFrame* ToggleMenuActiveState();
|
|
|
|
bool IsActiveByKeyboard() { return mActiveByKeyboard; }
|
|
void SetActiveByKeyboard() { mActiveByKeyboard = true; }
|
|
|
|
// indicate that a menu on the menubar was closed. Returns true if the caller
|
|
// may deselect the menuitem.
|
|
virtual bool MenuClosed() override;
|
|
|
|
// Called when Enter is pressed while the menubar is focused. If the current
|
|
// menu is open, let the child handle the key.
|
|
nsMenuFrame* Enter(mozilla::WidgetGUIEvent* aEvent);
|
|
|
|
// Used to handle ALT+key combos
|
|
nsMenuFrame* FindMenuWithShortcut(mozilla::dom::KeyboardEvent* aKeyEvent,
|
|
bool aPeek);
|
|
|
|
virtual bool IsFrameOfType(uint32_t aFlags) const override {
|
|
// Override bogus IsFrameOfType in nsBoxFrame.
|
|
if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
|
|
return false;
|
|
return nsBoxFrame::IsFrameOfType(aFlags);
|
|
}
|
|
|
|
#ifdef DEBUG_FRAME_DUMP
|
|
virtual nsresult GetFrameName(nsAString& aResult) const override {
|
|
return MakeFrameName(NS_LITERAL_STRING("MenuBar"), aResult);
|
|
}
|
|
#endif
|
|
|
|
protected:
|
|
RefPtr<nsMenuBarListener> mMenuBarListener; // The listener that tells us
|
|
// about key and mouse events.
|
|
|
|
// flag that is temporarily set when switching from one menu on the menubar to
|
|
// another to indicate that the menubar should not be deactivated.
|
|
bool mStayActive;
|
|
|
|
bool mIsActive; // Whether or not the menu bar is active (a menu item is
|
|
// highlighted or shown).
|
|
|
|
// whether the menubar was made active via the keyboard.
|
|
bool mActiveByKeyboard;
|
|
|
|
// The current menu that is active (highlighted), which may not be open. This
|
|
// will be null if no menu is active.
|
|
nsMenuFrame* mCurrentMenu;
|
|
}; // class nsMenuBarFrame
|
|
|
|
#endif
|