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148 lines
5.0 KiB
C++
148 lines
5.0 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is
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* Netscape Communications Corporation.
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* Portions created by the Initial Developer are Copyright (C) 1998
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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* Original Author: David W. Hyatt (hyatt@netscape.com)
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* Dean Tessman <dean_tessman@hotmail.com>
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* Dan Rosen <dr@netscape.com>
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either of the GNU General Public License Version 2 or later (the "GPL"),
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* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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//
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// nsMenuBarFrame
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//
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#ifndef nsMenuBarFrame_h__
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#define nsMenuBarFrame_h__
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#include "prtypes.h"
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#include "nsIAtom.h"
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#include "nsCOMPtr.h"
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#include "nsBoxFrame.h"
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#include "nsMenuFrame.h"
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#include "nsMenuBarListener.h"
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#include "nsIMenuParent.h"
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#include "nsIWidget.h"
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class nsIContent;
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nsIFrame* NS_NewMenuBarFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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class nsMenuBarFrame : public nsBoxFrame, public nsIMenuParent
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{
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public:
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nsMenuBarFrame(nsIPresShell* aShell, nsStyleContext* aContext);
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// nsIMenuParentInterface
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virtual nsMenuFrame* GetCurrentMenuItem();
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NS_IMETHOD SetCurrentMenuItem(nsMenuFrame* aMenuItem);
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virtual void CurrentMenuIsBeingDestroyed();
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NS_IMETHOD ChangeMenuItem(nsMenuFrame* aMenuItem, PRBool aSelectFirstItem);
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NS_IMETHOD SetActive(PRBool aActiveFlag);
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virtual PRBool IsMenuBar() { return PR_TRUE; }
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virtual PRBool IsContextMenu() { return PR_FALSE; }
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virtual PRBool IsActive() { return mIsActive; }
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virtual PRBool IsMenu() { return PR_FALSE; }
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virtual PRBool IsOpen() { return PR_TRUE; } // menubars are considered always open
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PRBool IsMenuOpen() { return mCurrentMenu && mCurrentMenu->IsOpen(); }
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void InstallKeyboardNavigator();
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void RemoveKeyboardNavigator();
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NS_IMETHOD Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* aPrevInFlow);
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virtual void Destroy();
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virtual nsIAtom* GetType() const { return nsGkAtoms::menuBarFrame; }
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// Non-interface helpers
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void
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SetStayActive(PRBool aStayActive) { mStayActive = aStayActive; }
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// Called when a menu on the menu bar is clicked on. Returns a menu if one
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// needs to be closed.
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nsMenuFrame* ToggleMenuActiveState();
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// indicate that a menu on the menubar was closed. Returns true if the caller
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// may deselect the menuitem.
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virtual PRBool MenuClosed();
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// Called when Enter is pressed while the menubar is focused. If the current
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// menu is open, let the child handle the key.
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nsMenuFrame* Enter();
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// Used to handle ALT+key combos
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nsMenuFrame* FindMenuWithShortcut(nsIDOMKeyEvent* aKeyEvent);
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virtual PRBool IsFrameOfType(PRUint32 aFlags) const
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{
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// Override bogus IsFrameOfType in nsBoxFrame.
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if (aFlags & (nsIFrame::eReplacedContainsBlock | nsIFrame::eReplaced))
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return PR_FALSE;
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return nsBoxFrame::IsFrameOfType(aFlags);
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}
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const
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{
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return MakeFrameName(NS_LITERAL_STRING("MenuBar"), aResult);
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}
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#endif
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protected:
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nsMenuBarListener* mMenuBarListener; // The listener that tells us about key and mouse events.
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// flag that is temporarily set when switching from one menu on the menubar to another
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// to indicate that the menubar should not be deactivated.
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PRPackedBool mStayActive;
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PRPackedBool mIsActive; // Whether or not the menu bar is active (a menu item is highlighted or shown).
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// The current menu that is active (highlighted), which may not be open. This will
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// be null if no menu is active.
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nsMenuFrame* mCurrentMenu;
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nsIDOMEventTarget* mTarget;
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private:
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PRBool mCaretWasVisible;
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}; // class nsMenuBarFrame
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#endif
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