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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/. */
#ifndef nsGridLayout2_h___
#define nsGridLayout2_h___
#include "mozilla/Attributes.h"
#include "nsStackLayout.h"
#include "nsIGridPart.h"
#include "nsCoord.h"
#include "nsGrid.h"
class nsGridRowGroupLayout;
class nsGridRowLayout;
class nsGridRow;
class nsBoxLayoutState;
/**
* The nsBoxLayout implementation for a grid.
*/
class nsGridLayout2 final : public nsStackLayout,
public nsIGridPart
{
public:
friend nsresult NS_NewGridLayout2(nsIPresShell* aPresShell, nsBoxLayout** aNewLayout);
NS_DECL_ISUPPORTS_INHERITED
NS_IMETHOD XULLayout(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) override;
virtual void IntrinsicISizesDirty(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) override;
virtual nsGridRowGroupLayout* CastToRowGroupLayout() override { return nullptr; }
virtual nsGridLayout2* CastToGridLayout() override { return this; }
virtual nsGrid* GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor=nullptr) override;
virtual nsIGridPart* GetParentGridPart(nsIFrame* aBox, nsIFrame** aParentBox) override {
NS_NOTREACHED("Should not be called"); return nullptr;
}
virtual nsSize GetXULMinSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) override;
virtual nsSize GetXULMaxSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) override;
virtual nsSize GetXULPrefSize(nsIFrame* aBox, nsBoxLayoutState& aBoxLayoutState) override;
virtual void CountRowsColumns(nsIFrame* aBox, int32_t& aRowCount, int32_t& aComputedColumnCount) override { aRowCount++; }
virtual void DirtyRows(nsIFrame* aBox, nsBoxLayoutState& aState) override { }
virtual int32_t BuildRows(nsIFrame* aBox, nsGridRow* aRows) override;
virtual nsMargin GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) override;
virtual Type GetType() override { return eGrid; }
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 nsIGridPart* AsGridPart() override { return this; }
static void AddOffset(nsIFrame* aChild, nsSize& aSize);
protected:
explicit nsGridLayout2(nsIPresShell* aShell);
virtual ~nsGridLayout2();
nsGrid mGrid;
private:
void AddWidth(nsSize& aSize, nscoord aSize2, bool aIsHorizontal);
}; // class nsGridLayout2
#endif
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