105 lines
3.6 KiB
C++
105 lines
3.6 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
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with 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) 2002
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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 the GNU General Public License Version 2 or later (the "GPL"), or
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* 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 NPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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//
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// nsNativeScrollbarFrame
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//
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// A class that wraps a nsIWidget that is a native scrollbar
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// and keeps the two in sync with the rest of gecko. Allows us to
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// shim a native scrollbar into the GFX scroll-view mechanism.
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//
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#ifndef nsNativeScrollbarFrame_h__
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#define nsNativeScrollbarFrame_h__
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#include "nsScrollbarFrame.h"
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#include "nsIWidget.h"
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class nsISupportsArray;
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class nsIPresShell;
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class nsIPresContext;
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class nsIContent;
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class nsStyleContext;
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nsresult NS_NewNativeScrollbarFrame(nsIPresShell* aPresShell, nsIFrame** aResult) ;
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class nsNativeScrollbarFrame : public nsBoxFrame
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{
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public:
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nsNativeScrollbarFrame(nsIPresShell* aShell);
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virtual ~nsNativeScrollbarFrame ( ) ;
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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("NativeScrollbarFrame"), aResult);
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}
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#endif
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NS_IMETHOD Init(nsIPresContext* aPresContext, nsIContent* aContent,
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nsIFrame* aParent, nsStyleContext* aContext, nsIFrame* aPrevInFlow);
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// nsIFrame overrides
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NS_IMETHOD AttributeChanged(nsIPresContext* aPresContext, nsIContent* aChild,
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PRInt32 aNameSpaceID, nsIAtom* aAttribute, PRInt32 aModType,
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PRInt32 aHint);
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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 GetPrefSize(nsBoxLayoutState& aState, nsSize& aSize);
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protected:
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void Hookup();
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nsresult FindScrollbar(nsIFrame* start, nsIFrame** outFrame, nsIContent** outContent);
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PRBool IsVertical() const { return mIsVertical; }
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private:
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PRPackedBool mIsVertical;
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PRPackedBool mScrollbarNeedsContent;
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nsCOMPtr<nsIWidget> mScrollbar;
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}; // class nsNativeScrollbarFrame
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#endif
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