зеркало из https://github.com/mozilla/gecko-dev.git
86 строки
3.4 KiB
C++
86 строки
3.4 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 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):
|
|
*
|
|
* 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 ***** */
|
|
#ifndef nsSelectsAreaFrame_h___
|
|
#define nsSelectsAreaFrame_h___
|
|
|
|
#include "nsAreaFrame.h"
|
|
class nsIContent;
|
|
|
|
/**
|
|
* The area frame has an additional named child list:
|
|
* - "Absolute-list" which contains the absolutely positioned frames
|
|
*
|
|
* @see nsGkAtoms::absoluteList
|
|
*/
|
|
class nsSelectsAreaFrame : public nsAreaFrame
|
|
{
|
|
public:
|
|
friend nsIFrame* NS_NewSelectsAreaFrame(nsIPresShell* aShell, nsStyleContext* aContext, PRUint32 aFlags);
|
|
|
|
NS_IMETHOD BuildDisplayList(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists);
|
|
|
|
nsresult BuildDisplayListInternal(nsDisplayListBuilder* aBuilder,
|
|
const nsRect& aDirtyRect,
|
|
const nsDisplayListSet& aLists);
|
|
|
|
NS_IMETHOD Reflow(nsPresContext* aCX,
|
|
nsHTMLReflowMetrics& aDesiredSize,
|
|
const nsHTMLReflowState& aReflowState,
|
|
nsReflowStatus& aStatus);
|
|
|
|
static PRBool IsOptionElement(nsIContent* aContent);
|
|
static PRBool IsOptionElementFrame(nsIFrame *aFrame);
|
|
|
|
nscoord HeightOfARow() const { return mHeightOfARow; }
|
|
|
|
protected:
|
|
nsSelectsAreaFrame(nsStyleContext* aContext) :
|
|
nsAreaFrame(aContext),
|
|
mHeightOfARow(0)
|
|
{}
|
|
|
|
// We cache the height of a single row so that changes to the "size"
|
|
// attribute, padding, etc. can all be handled with only one reflow. We'll
|
|
// have to reflow twice if someone changes our font size or something like
|
|
// that, so that the heights of our options will change.
|
|
nscoord mHeightOfARow;
|
|
};
|
|
|
|
#endif /* nsSelectsAreaFrame_h___ */
|