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99 lines
3.6 KiB
C++
99 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim:cindent:ts=2:et:sw=2:
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*
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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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* Pierre Phaneuf <pp@ludusdesign.com>
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* Brian Ryner <bryner@brianryner.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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* This Original Code has been modified by IBM Corporation. Modifications made
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* by IBM described herein are Copyright (c) International Business Machines
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* Corporation, 2000. Modifications to Mozilla code or documentation identified
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* per MPL Section 3.3
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*
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* Date Modified by Description of modification
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* 04/20/2000 IBM Corp. OS/2 VisualAge build.
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*/
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/* part of nsFrameManager, to work around header inclusionordering */
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#ifndef _nsFrameManagerBase_h_
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#define _nsFrameManagerBase_h_
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#include "pldhash.h"
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class nsIPresShell;
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class nsStyleSet;
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class nsIContent;
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class nsPlaceholderFrame;
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class nsIFrame;
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class nsStyleContext;
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class nsIAtom;
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class nsStyleChangeList;
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class nsILayoutHistoryState;
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class nsFrameManagerBase
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{
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public:
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PRBool IsDestroyingFrames() { return mIsDestroyingFrames; }
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/*
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* Gets and sets the root frame (typically the viewport). The lifetime of the
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* root frame is controlled by the frame manager. When the frame manager is
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* destroyed, it destroys the entire frame hierarchy.
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*/
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NS_HIDDEN_(nsIFrame*) GetRootFrame() const { return mRootFrame; }
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NS_HIDDEN_(void) SetRootFrame(nsIFrame* aRootFrame)
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{
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NS_ASSERTION(!mRootFrame, "already have a root frame");
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mRootFrame = aRootFrame;
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}
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protected:
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class UndisplayedMap;
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// weak link, because the pres shell owns us
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nsIPresShell* mPresShell;
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// the pres shell owns the style set
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nsStyleSet* mStyleSet;
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nsIFrame* mRootFrame;
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PLDHashTable mPlaceholderMap;
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UndisplayedMap* mUndisplayedMap;
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PRPackedBool mIsDestroyingFrames; // The frame manager is destroying some frame(s).
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};
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#endif
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