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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: */
/* 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 LAYOUT_SVG_SVGUSEFRAME_H_
#define LAYOUT_SVG_SVGUSEFRAME_H_
// Keep in (case-insensitive) order:
#include "SVGGFrame.h"
namespace mozilla {
class PresShell;
} // namespace mozilla
nsIFrame* NS_NewSVGUseFrame(mozilla::PresShell* aPresShell,
mozilla::ComputedStyle* aStyle);
namespace mozilla {
class SVGUseFrame final : public SVGGFrame {
friend nsIFrame* ::NS_NewSVGUseFrame(mozilla::PresShell* aPresShell,
ComputedStyle* aStyle);
protected:
explicit SVGUseFrame(ComputedStyle* aStyle, nsPresContext* aPresContext)
: SVGGFrame(aStyle, aPresContext, kClassID), mHasValidDimensions(true) {}
public:
NS_DECL_FRAMEARENA_HELPERS(SVGUseFrame)
// nsIFrame interface:
void Init(nsIContent* aContent, nsContainerFrame* aParent,
nsIFrame* aPrevInFlow) override;
// Called when the href attributes changed.
void HrefChanged();
// Called when the width or height attributes changed.
void DimensionAttributeChanged(bool aHadValidDimensions,
bool aAttributeIsUsed);
nsresult AttributeChanged(int32_t aNamespaceID, nsAtom* aAttribute,
int32_t aModType) override;
void DidSetComputedStyle(ComputedStyle* aOldComputedStyle) override;
#ifdef DEBUG_FRAME_DUMP
nsresult GetFrameName(nsAString& aResult) const override {
return MakeFrameName(u"SVGUse"_ns, aResult);
}
#endif
// ISVGDisplayableFrame interface:
void ReflowSVG() override;
void NotifySVGChanged(uint32_t aFlags) override;
SVGBBox GetBBoxContribution(const Matrix& aToBBoxUserspace,
uint32_t aFlags) override;
private:
std::pair<float, float> ResolvePosition() const;
bool mHasValidDimensions;
};
} // namespace mozilla
#endif // LAYOUT_SVG_SVGUSEFRAME_H_