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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "mozilla/Attributes.h"
#include "nsBoxFrame.h"
class nsITreeBoxObject;
nsIFrame* NS_NewTreeColFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext);
class nsTreeColFrame : public nsBoxFrame
{
public:
NS_DECL_FRAMEARENA_HELPERS
explicit nsTreeColFrame(nsStyleContext* aContext):
nsBoxFrame(aContext) {}
virtual void Init(nsIContent* aContent,
nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot) override;
virtual void BuildDisplayListForChildren(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID,
nsIAtom* aAttribute,
int32_t aModType) override;
virtual void SetXULBounds(nsBoxLayoutState& aBoxLayoutState, const nsRect& aRect,
bool aRemoveOverflowArea = false) override;
friend nsIFrame* NS_NewTreeColFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext);
protected:
virtual ~nsTreeColFrame();
/**
* @return the tree box object of the tree this column belongs to, or nullptr.
*/
nsITreeBoxObject* GetTreeBoxObject();
/**
* Helper method that gets the nsITreeColumns object this column belongs to
* and calls InvalidateColumns() on it.
*/
void InvalidateColumns(bool aCanWalkFrameTree = true);
};
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