michael@0: /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /**
michael@0:  
michael@0:   Author:
michael@0:   Eric D Vaughan
michael@0: 
michael@0: **/
michael@0: 
michael@0: #ifndef nsGridRowLayout_h___
michael@0: #define nsGridRowLayout_h___
michael@0: 
michael@0: #include "mozilla/Attributes.h"
michael@0: #include "nsSprocketLayout.h"
michael@0: #include "nsIGridPart.h"
michael@0: class nsGridRowGroupLayout;
michael@0: class nsGridLayout2;
michael@0: class nsBoxLayoutState;
michael@0: class nsGrid;
michael@0: 
michael@0: /**
michael@0:  * A common base class for nsGridRowLeafLayout (the nsBoxLayout object
michael@0:  * for a grid row or column) and nsGridRowGroupLayout (the nsBoxLayout
michael@0:  * object for a grid row group or column group).
michael@0:  */
michael@0: // XXXldb This needs a name that indicates that it's a base class for
michael@0: // both row and rows (row-group).
michael@0: class nsGridRowLayout : public nsSprocketLayout,
michael@0:                         public nsIGridPart
michael@0: {
michael@0: public:
michael@0:   NS_DECL_ISUPPORTS_INHERITED
michael@0: 
michael@0:   virtual nsGridRowGroupLayout* CastToRowGroupLayout() MOZ_OVERRIDE { return nullptr; }
michael@0:   virtual nsGridLayout2* CastToGridLayout() MOZ_OVERRIDE { return nullptr; }
michael@0:   virtual nsGrid* GetGrid(nsIFrame* aBox, int32_t* aIndex, nsGridRowLayout* aRequestor=nullptr) MOZ_OVERRIDE;
michael@0:   virtual nsIGridPart* GetParentGridPart(nsIFrame* aBox, nsIFrame** aParentBox) MOZ_OVERRIDE;
michael@0:   virtual void ChildrenInserted(nsIFrame* aBox, nsBoxLayoutState& aState,
michael@0:                                 nsIFrame* aPrevBox,
michael@0:                                 const nsFrameList::Slice& aNewChildren) MOZ_OVERRIDE;
michael@0:   virtual void ChildrenAppended(nsIFrame* aBox, nsBoxLayoutState& aState,
michael@0:                                 const nsFrameList::Slice& aNewChildren) MOZ_OVERRIDE;
michael@0:   virtual void ChildrenRemoved(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) MOZ_OVERRIDE;
michael@0:   virtual void ChildrenSet(nsIFrame* aBox, nsBoxLayoutState& aState, nsIFrame* aChildList) MOZ_OVERRIDE;
michael@0:   virtual nsMargin GetTotalMargin(nsIFrame* aBox, bool aIsHorizontal) MOZ_OVERRIDE;
michael@0: 
michael@0:   virtual nsIGridPart* AsGridPart() MOZ_OVERRIDE { return this; }
michael@0: 
michael@0: protected:
michael@0:   virtual void ChildAddedOrRemoved(nsIFrame* aBox, nsBoxLayoutState& aState)=0;
michael@0: 
michael@0:   nsGridRowLayout();
michael@0: };
michael@0: 
michael@0: #endif
michael@0: