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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/. */
/**
Author:
Eric D Vaughan
**/
#ifndef nsGridRowLayout_h___
#define nsGridRowLayout_h___
#include "mozilla/Attributes.h"
#include "nsSprocketLayout.h"
#include "nsIGridPart.h"
class nsGridRowGroupLayout;
class nsGridLayout2;
class nsBoxLayoutState;
class nsGrid;
/**
* A common base class for nsGridRowLeafLayout (the nsBoxLayout object
* for a grid row or column) and nsGridRowGroupLayout (the nsBoxLayout
* object for a grid row group or column group).
*/
// XXXldb This needs a name that indicates that it's a base class for
// both row and rows (row-group).
class nsGridRowLayout : public nsSprocketLayout,
public nsIGridPart
{
public:
NS_DECL_ISUPPORTS_INHERITED
virtual nsGridRowGroupLayout* CastToRowGroupLayout() override { return nullptr; }
virtual nsGridLayout2* CastToGridLayout() override { return nullptr; }
virtual nsGrid* GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor=nullptr) override;
virtual nsIGridPart* GetParentGridPart(nsIFrame* aBox, nsIFrame** aParentBox) override;
virtual void ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
nsIFrame* aPrevBox,
const nsFrameList::Slice& aNewChildren) override;
virtual void ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
const nsFrameList::Slice& aNewChildren) override;
virtual void ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) override;
virtual void ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) override;
virtual nsMargin GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) override;
virtual nsIGridPart* AsGridPart() override { return this; }
protected:
virtual void ChildAddedOrRemoved(nsIFrame* aBox, nsBoxLayoutState& aState)=0;
nsGridRowLayout();
virtual ~nsGridRowLayout();
};
#endif
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