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250 lines
8.2 KiB
C++
250 lines
8.2 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 nsSliderFrame_h__
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#define nsSliderFrame_h__
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#include "nsBoxFrame.h"
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#include "prtypes.h"
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#include "nsIAtom.h"
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#include "nsCOMPtr.h"
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#include "nsITimer.h"
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#include "nsIDOMMouseListener.h"
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class nsString;
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class nsIScrollbarListener;
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class nsISupportsArray;
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class nsITimer;
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class nsSliderFrame;
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nsIFrame* NS_NewSliderFrame(nsIPresShell* aPresShell, nsStyleContext* aContext);
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class nsSliderMediator : public nsIDOMMouseListener,
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public nsITimerCallback
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{
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public:
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NS_DECL_ISUPPORTS
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nsSliderFrame* mSlider;
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nsSliderMediator(nsSliderFrame* aSlider) { mSlider = aSlider; }
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virtual ~nsSliderMediator() {}
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virtual void SetSlider(nsSliderFrame* aSlider) { mSlider = aSlider; }
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/**
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* Processes a mouse down event
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* @param aMouseEvent @see nsIDOMEvent.h
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* @returns whether the event was consumed or ignored. @see nsresult
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*/
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NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent);
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/**
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* Processes a mouse up event
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* @param aMouseEvent @see nsIDOMEvent.h
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* @returns whether the event was consumed or ignored. @see nsresult
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*/
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NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent);
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/**
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* Processes a mouse click event
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* @param aMouseEvent @see nsIDOMEvent.h
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* @returns whether the event was consumed or ignored. @see nsresult
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*
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*/
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NS_IMETHOD MouseClick(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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/**
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* Processes a mouse click event
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* @param aMouseEvent @see nsIDOMEvent.h
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* @returns whether the event was consumed or ignored. @see nsresult
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*
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*/
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NS_IMETHOD MouseDblClick(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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/**
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* Processes a mouse enter event
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* @param aMouseEvent @see nsIDOMEvent.h
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* @returns whether the event was consumed or ignored. @see nsresult
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*/
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NS_IMETHOD MouseOver(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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/**
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* Processes a mouse leave event
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* @param aMouseEvent @see nsIDOMEvent.h
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* @returns whether the event was consumed or ignored. @see nsresult
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*/
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NS_IMETHOD MouseOut(nsIDOMEvent* aMouseEvent) { return NS_OK; }
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NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; }
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NS_DECL_NSITIMERCALLBACK
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}; // class nsSliderFrame
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class nsSliderFrame : public nsBoxFrame
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{
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public:
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friend class nsSliderMediator;
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nsSliderFrame(nsIPresShell* aShell, nsStyleContext* aContext);
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virtual ~nsSliderFrame();
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#ifdef DEBUG
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NS_IMETHOD GetFrameName(nsAString& aResult) const {
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return MakeFrameName(NS_LITERAL_STRING("SliderFrame"), aResult);
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}
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#endif
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// nsIBox
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virtual nsSize GetPrefSize(nsBoxLayoutState& aBoxLayoutState);
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virtual nsSize GetMinSize(nsBoxLayoutState& aBoxLayoutState);
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virtual nsSize GetMaxSize(nsBoxLayoutState& aBoxLayoutState);
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NS_IMETHOD DoLayout(nsBoxLayoutState& aBoxLayoutState);
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// nsIFrame overrides
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NS_IMETHOD AppendFrames(nsIAtom* aListName,
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nsIFrame* aFrameList);
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NS_IMETHOD InsertFrames(nsIAtom* aListName,
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nsIFrame* aPrevFrame,
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nsIFrame* aFrameList);
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NS_IMETHOD RemoveFrame(nsIAtom* aListName,
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nsIFrame* aOldFrame);
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virtual void Destroy();
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NS_IMETHOD BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
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const nsRect& aDirtyRect,
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const nsDisplayListSet& aLists);
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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 AttributeChanged(PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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NS_IMETHOD Init(nsIContent* aContent,
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nsIFrame* aParent,
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nsIFrame* asPrevInFlow);
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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 SetInitialChildList(nsIAtom* aListName,
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nsIFrame* aChildList);
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virtual nsIAtom* GetType() const;
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NS_IMETHOD MouseDown(nsIDOMEvent* aMouseEvent);
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NS_IMETHOD MouseUp(nsIDOMEvent* aMouseEvent);
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NS_IMETHOD HandleEvent(nsIDOMEvent* aEvent) { return NS_OK; }
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static PRInt32 GetCurrentPosition(nsIContent* content);
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static PRInt32 GetMinPosition(nsIContent* content);
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static PRInt32 GetMaxPosition(nsIContent* content);
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static PRInt32 GetIncrement(nsIContent* content);
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static PRInt32 GetPageIncrement(nsIContent* content);
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static PRInt32 GetIntegerAttribute(nsIContent* content, nsIAtom* atom, PRInt32 defaultValue);
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void EnsureOrient();
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void SetScrollbarListener(nsIScrollbarListener* aListener);
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virtual nsIView* GetMouseCapturer() const { return GetView(); }
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NS_IMETHOD HandlePress(nsPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD HandleMultiplePress(nsPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus) { return NS_OK; }
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NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus) { return NS_OK; }
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NS_IMETHOD HandleRelease(nsPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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NS_IMETHOD_(void) Notify(nsITimer *timer);
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private:
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nsIBox* GetScrollbar();
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void PageUpDown(nscoord change);
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void SetCurrentPosition(nsIContent* scrollbar, nscoord pos, PRBool aIsSmooth,
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PRBool aImmediateRedraw);
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void SetCurrentPositionInternal(nsIContent* scrollbar, nscoord pos,
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PRBool aIsSmooth, PRBool aImmediateRedraw);
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nsresult CurrentPositionChanged(nsPresContext* aPresContext,
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PRBool aImmediateRedraw);
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void DragThumb(PRBool aGrabMouseEvents);
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void AddListener();
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void RemoveListener();
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PRBool isDraggingThumb();
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float mRatio;
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nscoord mDragStart;
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nscoord mThumbStart;
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PRInt32 mCurPos;
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nsIScrollbarListener* mScrollbarListener;
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nscoord mChange;
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nsPoint mDestinationPoint;
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nsSliderMediator* mMediator;
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static PRBool gMiddlePref;
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static PRInt32 gSnapMultiplier;
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}; // class nsSliderFrame
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#endif
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