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264 lines
9.0 KiB
C++
264 lines
9.0 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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*
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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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/* rendering object for HTML <frameset> elements */
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#ifndef nsHTMLFrameset_h___
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#define nsHTMLFrameset_h___
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#include "nsGkAtoms.h"
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#include "nsHTMLContainerFrame.h"
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#include "nsColor.h"
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#include "nsIObserver.h"
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#include "nsWeakPtr.h"
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#include "nsIFrameSetElement.h"
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class nsIContent;
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class nsIFrame;
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class nsPresContext;
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class nsIRenderingContext;
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struct nsRect;
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struct nsHTMLReflowState;
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struct nsSize;
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class nsIAtom;
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class nsHTMLFramesetBorderFrame;
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class nsGUIEvent;
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class nsHTMLFramesetFrame;
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#define NO_COLOR 0xFFFFFFFA
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struct nsBorderColor
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{
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nscolor mLeft;
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nscolor mRight;
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nscolor mTop;
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nscolor mBottom;
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nsBorderColor() { Set(NO_COLOR); }
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~nsBorderColor() {}
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void Set(nscolor aColor) { mLeft = mRight = mTop = mBottom = aColor; }
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};
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enum nsFrameborder {
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eFrameborder_Yes = 0,
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eFrameborder_No,
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eFrameborder_Notset
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};
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struct nsFramesetDrag {
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nsHTMLFramesetFrame* mSource; // frameset whose border was dragged to cause the resize
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PRInt32 mIndex; // index of left col or top row of effected area
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PRInt32 mChange; // pos for left to right or top to bottom, neg otherwise
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PRPackedBool mVertical; // vertical if true, otherwise horizontal
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nsFramesetDrag();
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void Reset(PRBool aVertical,
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PRInt32 aIndex,
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PRInt32 aChange,
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nsHTMLFramesetFrame* aSource);
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void UnSet();
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};
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/*******************************************************************************
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* nsHTMLFramesetFrame
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******************************************************************************/
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class nsHTMLFramesetFrame : public nsHTMLContainerFrame
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{
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public:
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NS_DECL_QUERYFRAME_TARGET(nsHTMLFramesetFrame)
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NS_DECL_QUERYFRAME
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NS_DECL_FRAMEARENA_HELPERS
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nsHTMLFramesetFrame(nsStyleContext* aContext);
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virtual ~nsHTMLFramesetFrame();
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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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NS_IMETHOD SetInitialChildList(nsIAtom* aListName,
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nsFrameList& aChildList);
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static PRBool gDragInProgress;
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void GetSizeOfChild(nsIFrame* aChild, nsSize& aSize);
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void GetSizeOfChildAt(PRInt32 aIndexInParent,
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nsSize& aSize,
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nsIntPoint& aCellIndex);
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static nsHTMLFramesetFrame* GetFramesetParent(nsIFrame* aChild);
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NS_IMETHOD HandleEvent(nsPresContext* aPresContext,
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nsGUIEvent* aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD GetCursor(const nsPoint& aPoint,
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nsIFrame::Cursor& aCursor);
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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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NS_IMETHOD Reflow(nsPresContext* aPresContext,
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nsHTMLReflowMetrics& aDesiredSize,
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const nsHTMLReflowState& aReflowState,
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nsReflowStatus& aStatus);
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virtual nsIAtom* GetType() const;
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const;
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#endif
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virtual PRBool IsLeaf() const;
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void StartMouseDrag(nsPresContext* aPresContext,
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nsHTMLFramesetBorderFrame* aBorder,
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nsGUIEvent* aEvent);
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void MouseDrag(nsPresContext* aPresContext,
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nsGUIEvent* aEvent);
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void EndMouseDrag(nsPresContext* aPresContext);
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nsFrameborder GetParentFrameborder() { return mParentFrameborder; }
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void SetParentFrameborder(nsFrameborder aValue) { mParentFrameborder = aValue; }
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nsFramesetDrag& GetDrag() { return mDrag; }
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void RecalculateBorderResize();
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protected:
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void Scale(nscoord aDesired,
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PRInt32 aNumIndicies,
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PRInt32* aIndicies,
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PRInt32 aNumItems,
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PRInt32* aItems);
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void CalculateRowCol(nsPresContext* aPresContext,
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nscoord aSize,
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PRInt32 aNumSpecs,
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const nsFramesetSpec* aSpecs,
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nscoord* aValues);
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void GenerateRowCol(nsPresContext* aPresContext,
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nscoord aSize,
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PRInt32 aNumSpecs,
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const nsFramesetSpec* aSpecs,
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nscoord* aValues,
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nsString& aNewAttr);
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virtual void GetDesiredSize(nsPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsHTMLReflowMetrics& aDesiredSize);
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PRInt32 GetBorderWidth(nsPresContext* aPresContext,
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PRBool aTakeForcingIntoAccount);
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PRInt32 GetParentBorderWidth() { return mParentBorderWidth; }
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void SetParentBorderWidth(PRInt32 aWidth) { mParentBorderWidth = aWidth; }
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nscolor GetParentBorderColor() { return mParentBorderColor; }
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void SetParentBorderColor(nscolor aColor) { mParentBorderColor = aColor; }
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nsFrameborder GetFrameBorder();
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nsFrameborder GetFrameBorder(nsIContent* aContent);
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nscolor GetBorderColor();
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nscolor GetBorderColor(nsIContent* aFrameContent);
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PRBool GetNoResize(nsIFrame* aChildFrame);
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virtual PRIntn GetSkipSides() const;
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void ReflowPlaceChild(nsIFrame* aChild,
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nsPresContext* aPresContext,
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const nsHTMLReflowState& aReflowState,
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nsPoint& aOffset,
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nsSize& aSize,
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nsIntPoint* aCellIndex = 0);
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PRBool CanResize(PRBool aVertical,
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PRBool aLeft);
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PRBool CanChildResize(PRBool aVertical,
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PRBool aLeft,
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PRInt32 aChildX,
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PRBool aFrameset);
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void SetBorderResize(PRInt32* aChildTypes,
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nsHTMLFramesetBorderFrame* aBorderFrame);
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PRBool ChildIsFrameset(nsIFrame* aChild);
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static int FrameResizePrefCallback(const char* aPref, void* aClosure);
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nsFramesetDrag mDrag;
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nsBorderColor mEdgeColors;
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nsHTMLFramesetBorderFrame* mDragger;
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nsHTMLFramesetFrame* mTopLevelFrameset;
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nsHTMLFramesetBorderFrame** mVerBorders; // vertical borders
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nsHTMLFramesetBorderFrame** mHorBorders; // horizontal borders
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PRInt32* mChildTypes; // frameset/frame distinction of children
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nsFrameborder* mChildFrameborder; // the frameborder attr of children
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nsBorderColor* mChildBorderColors;
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nscoord* mRowSizes; // currently computed row sizes
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nscoord* mColSizes; // currently computed col sizes
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nsIntPoint mFirstDragPoint;
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PRInt32 mNumRows;
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PRInt32 mNumCols;
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PRInt32 mNonBorderChildCount;
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PRInt32 mNonBlankChildCount;
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PRInt32 mEdgeVisibility;
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nsFrameborder mParentFrameborder;
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nscolor mParentBorderColor;
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PRInt32 mParentBorderWidth;
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PRInt32 mPrevNeighborOrigSize; // used during resize
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PRInt32 mNextNeighborOrigSize;
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PRInt32 mMinDrag;
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PRInt32 mChildCount;
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PRBool mForceFrameResizability;
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};
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#endif
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