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846d8789ee
Various places in dom/ use the pattern: already_AddRefed<NodeInfo> ni = ...; which is supposed to be disallowed by our static analysis code, but isn't, for whatever reason. To fix our static analysis code, we need to eliminate instances of the above pattern. Unfortunately, eliminating this pattern requires restructuring how Nodes are created. Most Node subclasses take `already_AddRefed<NodeInfo>&` in their constructors, and a few accept `already_AddRefed<NodeInfo>&&`. We need to enforce the latter pattern consistently, which requires changing dozens of source files.
143 lines
4.1 KiB
C++
143 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* 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
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "mozilla/dom/SVGCircleElement.h"
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#include "mozilla/gfx/2D.h"
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#include "nsGkAtoms.h"
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#include "mozilla/dom/SVGCircleElementBinding.h"
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#include "mozilla/dom/SVGLengthBinding.h"
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NS_IMPL_NS_NEW_NAMESPACED_SVG_ELEMENT(Circle)
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using namespace mozilla::gfx;
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namespace mozilla {
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namespace dom {
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JSObject*
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SVGCircleElement::WrapNode(JSContext *aCx, JS::Handle<JSObject*> aGivenProto)
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{
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return SVGCircleElement_Binding::Wrap(aCx, this, aGivenProto);
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}
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nsSVGElement::LengthInfo SVGCircleElement::sLengthInfo[3] =
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{
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{ &nsGkAtoms::cx, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::X },
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{ &nsGkAtoms::cy, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::Y },
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{ &nsGkAtoms::r, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER, SVGContentUtils::XY }
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};
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//----------------------------------------------------------------------
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// Implementation
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SVGCircleElement::SVGCircleElement(already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
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: SVGCircleElementBase(std::move(aNodeInfo))
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{
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}
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//----------------------------------------------------------------------
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// nsINode methods
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NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGCircleElement)
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//----------------------------------------------------------------------
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already_AddRefed<SVGAnimatedLength>
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SVGCircleElement::Cx()
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{
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return mLengthAttributes[ATTR_CX].ToDOMAnimatedLength(this);
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}
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already_AddRefed<SVGAnimatedLength>
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SVGCircleElement::Cy()
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{
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return mLengthAttributes[ATTR_CY].ToDOMAnimatedLength(this);
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}
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already_AddRefed<SVGAnimatedLength>
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SVGCircleElement::R()
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{
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return mLengthAttributes[ATTR_R].ToDOMAnimatedLength(this);
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}
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//----------------------------------------------------------------------
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// nsSVGElement methods
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/* virtual */ bool
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SVGCircleElement::HasValidDimensions() const
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{
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return mLengthAttributes[ATTR_R].IsExplicitlySet() &&
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mLengthAttributes[ATTR_R].GetAnimValInSpecifiedUnits() > 0;
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}
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nsSVGElement::LengthAttributesInfo
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SVGCircleElement::GetLengthInfo()
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{
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return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
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ArrayLength(sLengthInfo));
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}
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//----------------------------------------------------------------------
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// SVGGeometryElement methods
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bool
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SVGCircleElement::GetGeometryBounds(Rect* aBounds,
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const StrokeOptions& aStrokeOptions,
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const Matrix& aToBoundsSpace,
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const Matrix* aToNonScalingStrokeSpace)
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{
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float x, y, r;
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GetAnimatedLengthValues(&x, &y, &r, nullptr);
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if (r <= 0.f) {
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// Rendering of the element is disabled
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*aBounds = Rect(aToBoundsSpace.TransformPoint(Point(x, y)), Size());
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return true;
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}
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if (aToBoundsSpace.IsRectilinear()) {
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// Optimize the case where we can treat the circle as a rectangle and
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// still get tight bounds.
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if (aStrokeOptions.mLineWidth > 0.f) {
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if (aToNonScalingStrokeSpace) {
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if (aToNonScalingStrokeSpace->IsRectilinear()) {
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MOZ_ASSERT(!aToNonScalingStrokeSpace->IsSingular());
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Rect userBounds(x - r, y - r, 2 * r, 2 * r);
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SVGContentUtils::RectilinearGetStrokeBounds(
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userBounds, aToBoundsSpace, *aToNonScalingStrokeSpace,
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aStrokeOptions.mLineWidth, aBounds);
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return true;
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}
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return false;
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}
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r += aStrokeOptions.mLineWidth / 2.f;
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}
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Rect rect(x - r, y - r, 2 * r, 2 * r);
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*aBounds = aToBoundsSpace.TransformBounds(rect);
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return true;
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}
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return false;
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}
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already_AddRefed<Path>
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SVGCircleElement::BuildPath(PathBuilder* aBuilder)
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{
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float x, y, r;
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GetAnimatedLengthValues(&x, &y, &r, nullptr);
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if (r <= 0.0f) {
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return nullptr;
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}
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aBuilder->Arc(Point(x, y), r, 0, Float(2*M_PI));
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return aBuilder->Finish();
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}
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} // namespace dom
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} // namespace mozilla
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