gecko-dev/dom/svg/SVGRectElement.h
Boris Chiou f8aab94d5f Bug 1598158 - Add IsClosedLoop() for SVGGeometryElement. r=emilio
Per https://drafts.fxtf.org/motion/#path-distance, we follow these rules
when `offset-path` references to a SVG shape:

1. Offset paths (including references to SVG Paths) are closed loops only if
   the final command in the path list is a closepath command ("z" or "Z"),
   otherwise they are unclosed intervals.
2. References to SVG circles, ellipses, images, polygons and rects are closed
   loops.
3. References to SVG lines and polylines are unclosed intervals.

Also, rename `mIsClosedIntervals` as `mIsClosedLoop` to be consistent.

Differential Revision: https://phabricator.services.mozilla.com/D184430
2023-08-07 22:04:02 +00:00

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2.5 KiB
C++

/* -*- 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 DOM_SVG_SVGRECTELEMENT_H_
#define DOM_SVG_SVGRECTELEMENT_H_
#include "nsCSSPropertyID.h"
#include "SVGAnimatedLength.h"
#include "SVGGeometryElement.h"
nsresult NS_NewSVGRectElement(
nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
namespace mozilla {
class ComputedStyle;
namespace dom {
using SVGRectElementBase = SVGGeometryElement;
class SVGRectElement final : public SVGRectElementBase {
protected:
explicit SVGRectElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
JSObject* WrapNode(JSContext* cx, JS::Handle<JSObject*> aGivenProto) override;
friend nsresult(::NS_NewSVGRectElement(
nsIContent** aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
public:
NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
// SVGSVGElement methods:
bool HasValidDimensions() const override;
// SVGGeometryElement methods:
bool GetGeometryBounds(
Rect* aBounds, const StrokeOptions& aStrokeOptions,
const Matrix& aToBoundsSpace,
const Matrix* aToNonScalingStrokeSpace = nullptr) override;
void GetAsSimplePath(SimplePath* aSimplePath) override;
already_AddRefed<Path> BuildPath(PathBuilder* aBuilder = nullptr) override;
bool IsClosedLoop() const override { return true; }
nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
static bool IsLengthChangedViaCSS(const ComputedStyle& aNewStyle,
const ComputedStyle& aOldStyle);
static nsCSSPropertyID GetCSSPropertyIdForAttrEnum(uint8_t aAttrEnum);
// WebIDL
already_AddRefed<DOMSVGAnimatedLength> X();
already_AddRefed<DOMSVGAnimatedLength> Y();
already_AddRefed<DOMSVGAnimatedLength> Height();
already_AddRefed<DOMSVGAnimatedLength> Width();
already_AddRefed<DOMSVGAnimatedLength> Rx();
already_AddRefed<DOMSVGAnimatedLength> Ry();
protected:
LengthAttributesInfo GetLengthInfo() override;
enum { ATTR_X, ATTR_Y, ATTR_WIDTH, ATTR_HEIGHT, ATTR_RX, ATTR_RY };
SVGAnimatedLength mLengthAttributes[6];
static LengthInfo sLengthInfo[6];
};
} // namespace dom
} // namespace mozilla
#endif // DOM_SVG_SVGRECTELEMENT_H_