gecko-dev/layout/generic/nsGridContainerFrame.h

67 строки
2.4 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=2 et sw=2 tw=80: */
/* This Source Code is subject to the terms of the Mozilla Public License
* version 2.0 (the "License"). You can obtain a copy of the License at
* http://mozilla.org/MPL/2.0/. */
/* rendering object for CSS "display: grid | inline-grid" */
#ifndef nsGridContainerFrame_h___
#define nsGridContainerFrame_h___
#include "nsContainerFrame.h"
#include "nsHashKeys.h"
#include "nsTHashtable.h"
/**
* Factory function.
* @return a newly allocated nsGridContainerFrame (infallible)
*/
nsContainerFrame* NS_NewGridContainerFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext);
class nsGridContainerFrame MOZ_FINAL : public nsContainerFrame
{
public:
NS_DECL_FRAMEARENA_HELPERS
NS_DECL_QUERYFRAME_TARGET(nsGridContainerFrame)
NS_DECL_QUERYFRAME
// nsIFrame overrides
void Reflow(nsPresContext* aPresContext,
nsHTMLReflowMetrics& aDesiredSize,
const nsHTMLReflowState& aReflowState,
nsReflowStatus& aStatus) MOZ_OVERRIDE;
virtual nsIAtom* GetType() const MOZ_OVERRIDE;
#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const MOZ_OVERRIDE;
#endif
protected:
friend nsContainerFrame* NS_NewGridContainerFrame(nsIPresShell* aPresShell,
nsStyleContext* aContext);
explicit nsGridContainerFrame(nsStyleContext* aContext) : nsContainerFrame(aContext) {}
/**
* XXX temporary - move the ImplicitNamedAreas stuff to the style system.
* The implicit area names that come from x-start .. x-end lines in
* grid-template-columns / grid-template-rows are stored in this frame
* property when needed, as a ImplicitNamedAreas* value.
*/
NS_DECLARE_FRAME_PROPERTY(ImplicitNamedAreasProperty,
DeleteValue<ImplicitNamedAreas>)
void InitImplicitNamedAreas(const nsStylePosition* aStyle);
void AddImplicitNamedAreas(const nsTArray<nsTArray<nsString>>& aLineNameLists);
typedef nsTHashtable<nsStringHashKey> ImplicitNamedAreas;
ImplicitNamedAreas* GetImplicitNamedAreas() const {
return static_cast<ImplicitNamedAreas*>(Properties().Get(ImplicitNamedAreasProperty()));
}
#ifdef DEBUG
void SanityCheckAnonymousGridItems() const;
#endif // DEBUG
};
#endif /* nsGridContainerFrame_h___ */