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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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 "mozilla/ComputedStyle.h"
#include "nsBoxFrame.h"
namespace mozilla {
class PresShell;
namespace dom {
class XULTreeElement;
}
} // namespace mozilla
nsIFrame* NS_NewTreeColFrame(mozilla::PresShell* aPresShell,
mozilla::ComputedStyle* aStyle);
class nsTreeColFrame final : public nsBoxFrame {
public:
NS_DECL_FRAMEARENA_HELPERS(nsTreeColFrame)
explicit nsTreeColFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
: nsBoxFrame(aStyle, aPresContext, kClassID) {}
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
virtual void DestroyFrom(nsIFrame* aDestructRoot,
PostDestroyData& aPostDestroyData) override;
virtual void BuildDisplayListForChildren(
nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) override;
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
virtual void SetXULBounds(nsBoxLayoutState& aBoxLayoutState,
const nsRect& aRect,
bool aRemoveOverflowArea = false) override;
friend nsIFrame* NS_NewTreeColFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
protected:
virtual ~nsTreeColFrame();
/**
* @return the tree that this column belongs to, or nullptr.
*/
mozilla::dom::XULTreeElement* GetTree();
/**
* Helper method that gets the TreeColumns object this column belongs to
* and calls InvalidateColumns() on it.
*/
void InvalidateColumns(bool aCanWalkFrameTree = true);
};
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