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