e4daffa10a
p=bugmail@q1n.org r=pkwarren sr=bzbarsky git-svn-id: svn://10.0.0.236/trunk@167124 18797224-902f-48f8-a5cc-f745e15eee43
123 lines
4.6 KiB
C++
123 lines
4.6 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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//
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// nsScrollbarFrame
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//
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#ifndef nsScrollbarFrame_h__
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#define nsScrollbarFrame_h__
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#include "nsBoxFrame.h"
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#include "nsIScrollbarFrame.h"
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class nsISupportsArray;
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class nsIScrollbarMediator;
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nsresult NS_NewScrollbarFrame(nsIPresShell* aPresShell, nsIFrame** aResult) ;
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class nsScrollbarFrame : public nsBoxFrame, public nsIScrollbarFrame
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{
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public:
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nsScrollbarFrame(nsIPresShell* aShell):nsBoxFrame(aShell), mScrollbarMediator(nsnull) {}
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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("ScrollbarFrame"), aResult);
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}
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#endif
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// nsIFrame overrides
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NS_IMETHOD AttributeChanged(nsIContent* aChild,
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PRInt32 aNameSpaceID,
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nsIAtom* aAttribute,
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PRInt32 aModType);
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NS_IMETHOD QueryInterface(const nsIID& aIID, void** aInstancePtr);
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NS_IMETHOD_(nsrefcnt) AddRef() { return NS_OK; }
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NS_IMETHOD_(nsrefcnt) Release() { return NS_OK; }
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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);
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NS_IMETHOD HandleDrag(nsPresContext* aPresContext,
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nsGUIEvent * aEvent,
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nsEventStatus* aEventStatus);
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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 Init(nsPresContext* aPresContext,
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nsIContent* aContent,
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nsIFrame* aParent,
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nsStyleContext* aContext,
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nsIFrame* aPrevInFlow);
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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 PRBool IsContainingBlock() const;
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// nsIScrollbarFrame
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NS_IMETHOD SetScrollbarMediator(nsIScrollbarMediator* aMediator) { mScrollbarMediator = aMediator; return NS_OK; };
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NS_IMETHOD GetScrollbarMediator(nsIScrollbarMediator** aResult) { *aResult = mScrollbarMediator; return NS_OK; };
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// nsBox methods
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/**
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* Treat scrollbars as clipping their children; overflowing children
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* will not be allowed to make NS_FRAME_OUTSIDE_CHILDREN on this
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* frame. This means that when the scroll code decides to hide a
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* scrollframe by setting its height or width to zero, that will
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* hide the children too.
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*/
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virtual PRBool DoesClipChildren() { return PR_TRUE; }
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private:
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nsIScrollbarMediator* mScrollbarMediator;
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}; // class nsScrollbarFrame
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#endif
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