mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-02 01:48:05 +00:00
104 lines
3.6 KiB
C++
104 lines
3.6 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
|
|
* vim:cindent:ts=2:et:sw=2:
|
|
*
|
|
* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Mozilla Public License Version
|
|
* 1.1 (the "License"); you may not use this file except in compliance with
|
|
* the License. You may obtain a copy of the License at
|
|
* http://www.mozilla.org/MPL/
|
|
*
|
|
* Software distributed under the License is distributed on an "AS IS" basis,
|
|
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
|
|
* for the specific language governing rights and limitations under the
|
|
* License.
|
|
*
|
|
* The Original Code is mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* the Initial Developer. All Rights Reserved.
|
|
*
|
|
* Contributor(s):
|
|
* Pierre Phaneuf <pp@ludusdesign.com>
|
|
* Brian Ryner <bryner@brianryner.com>
|
|
*
|
|
* Alternatively, the contents of this file may be used under the terms of
|
|
* either of the GNU General Public License Version 2 or later (the "GPL"),
|
|
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
|
|
* in which case the provisions of the GPL or the LGPL are applicable instead
|
|
* of those above. If you wish to allow use of your version of this file only
|
|
* under the terms of either the GPL or the LGPL, and not to allow others to
|
|
* use your version of this file under the terms of the MPL, indicate your
|
|
* decision by deleting the provisions above and replace them with the notice
|
|
* and other provisions required by the GPL or the LGPL. If you do not delete
|
|
* the provisions above, a recipient may use your version of this file under
|
|
* the terms of any one of the MPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK *****
|
|
*
|
|
* This Original Code has been modified by IBM Corporation. Modifications made
|
|
* by IBM described herein are Copyright (c) International Business Machines
|
|
* Corporation, 2000. Modifications to Mozilla code or documentation identified
|
|
* per MPL Section 3.3
|
|
*
|
|
* Date Modified by Description of modification
|
|
* 04/20/2000 IBM Corp. OS/2 VisualAge build.
|
|
*/
|
|
|
|
/* part of nsFrameManager, to work around header inclusionordering */
|
|
|
|
#ifndef _nsFrameManagerBase_h_
|
|
#define _nsFrameManagerBase_h_
|
|
|
|
#include "pldhash.h"
|
|
|
|
class nsIPresShell;
|
|
class nsStyleSet;
|
|
class nsIContent;
|
|
class nsPlaceholderFrame;
|
|
class nsIFrame;
|
|
class nsStyleContext;
|
|
class nsIAtom;
|
|
class nsStyleChangeList;
|
|
class nsILayoutHistoryState;
|
|
|
|
class nsFrameManagerBase
|
|
{
|
|
public:
|
|
nsFrameManagerBase()
|
|
{
|
|
memset(this, '\0', sizeof(nsFrameManagerBase));
|
|
}
|
|
|
|
bool IsDestroyingFrames() { return mIsDestroyingFrames; }
|
|
|
|
/*
|
|
* Gets and sets the root frame (typically the viewport). The lifetime of the
|
|
* root frame is controlled by the frame manager. When the frame manager is
|
|
* destroyed, it destroys the entire frame hierarchy.
|
|
*/
|
|
NS_HIDDEN_(nsIFrame*) GetRootFrame() const { return mRootFrame; }
|
|
NS_HIDDEN_(void) SetRootFrame(nsIFrame* aRootFrame)
|
|
{
|
|
NS_ASSERTION(!mRootFrame, "already have a root frame");
|
|
mRootFrame = aRootFrame;
|
|
}
|
|
|
|
protected:
|
|
class UndisplayedMap;
|
|
|
|
// weak link, because the pres shell owns us
|
|
nsIPresShell* mPresShell;
|
|
// the pres shell owns the style set
|
|
nsStyleSet* mStyleSet;
|
|
nsIFrame* mRootFrame;
|
|
PLDHashTable mPlaceholderMap;
|
|
UndisplayedMap* mUndisplayedMap;
|
|
bool mIsDestroyingFrames; // The frame manager is destroying some frame(s).
|
|
};
|
|
|
|
#endif
|