gecko-dev/layout/xul/nsDeckFrame.h

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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: */
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/* 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/. */
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/**
Eric D Vaughan
A frame that can have multiple children. Only one child may be displayed at
one time. So the can be flipped though like a deck of cards.
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**/
#ifndef nsDeckFrame_h___
#define nsDeckFrame_h___
#include "mozilla/Attributes.h"
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#include "nsBoxFrame.h"
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namespace mozilla {
class PresShell;
} // namespace mozilla
class nsDeckFrame final : public nsBoxFrame {
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public:
NS_DECL_QUERYFRAME
NS_DECL_FRAMEARENA_HELPERS(nsDeckFrame)
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friend nsIFrame* NS_NewDeckFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
virtual nsresult AttributeChanged(int32_t aNameSpaceID, nsAtom* aAttribute,
int32_t aModType) override;
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NS_IMETHOD DoXULLayout(nsBoxLayoutState& aState) override;
virtual void BuildDisplayList(nsDisplayListBuilder* aBuilder,
const nsDisplayListSet& aLists) override;
virtual void RemoveFrame(ChildListID aListID, nsIFrame* aOldFrame) override;
virtual void BuildDisplayListForChildren(
nsDisplayListBuilder* aBuilder, const nsDisplayListSet& aLists) override;
virtual void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
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#ifdef DEBUG_FRAME_DUMP
virtual nsresult GetFrameName(nsAString& aResult) const override {
return MakeFrameName(NS_LITERAL_STRING("Deck"), aResult);
}
#endif
explicit nsDeckFrame(ComputedStyle* aStyle, nsPresContext* aPresContext);
nsIFrame* GetSelectedBox();
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protected:
void IndexChanged();
int32_t GetSelectedIndex();
void HideBox(nsIFrame* aBox);
void ShowBox(nsIFrame* aBox);
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private:
int32_t mIndex;
void Animate(nsIFrame*, bool);
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}; // class nsDeckFrame
#endif