Files
tubestation/dom/svg/SVGForeignObjectElement.cpp
Emilio Cobos Álvarez 521050f6c0 Bug 1915206 - Simplify SVG transforms a bit more. r=longsonr
We no longer need the concept of "local" transforms after bug 878346.

Local transforms that we'd need in the future could be represented via
attribute mapping.

We still need the viewbox transform shenanigans which applies to
children only, tho.

Differential Revision: https://phabricator.services.mozilla.com/D220290
2024-08-27 21:14:28 +00:00

140 lines
4.6 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/. */
#include "mozilla/dom/SVGForeignObjectElement.h"
#include "mozilla/AlreadyAddRefed.h"
#include "mozilla/ArrayUtils.h"
#include "mozilla/dom/SVGDocument.h"
#include "mozilla/dom/SVGForeignObjectElementBinding.h"
#include "mozilla/dom/SVGLengthBinding.h"
#include "SVGGeometryProperty.h"
NS_IMPL_NS_NEW_SVG_ELEMENT(ForeignObject)
namespace mozilla::dom {
JSObject* SVGForeignObjectElement::WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) {
return SVGForeignObjectElement_Binding::Wrap(aCx, this, aGivenProto);
}
SVGElement::LengthInfo SVGForeignObjectElement::sLengthInfo[4] = {
{nsGkAtoms::x, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::X},
{nsGkAtoms::y, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::Y},
{nsGkAtoms::width, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::X},
{nsGkAtoms::height, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
SVGContentUtils::Y},
};
//----------------------------------------------------------------------
// Implementation
SVGForeignObjectElement::SVGForeignObjectElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
: SVGGraphicsElement(std::move(aNodeInfo)) {}
namespace SVGT = SVGGeometryProperty::Tags;
//----------------------------------------------------------------------
// nsINode methods
NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGForeignObjectElement)
//----------------------------------------------------------------------
already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::X() {
return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::Y() {
return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::Width() {
return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this);
}
already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::Height() {
return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this);
}
//----------------------------------------------------------------------
// SVGElement methods
/* virtual */
gfxMatrix SVGForeignObjectElement::PrependLocalTransformsTo(
const gfxMatrix& aMatrix, SVGTransformTypes aWhich) const {
// 'transform' attribute:
if (aWhich == eUserSpaceToParent) {
return aMatrix;
}
// our 'x' and 'y' attributes:
float x, y;
if (!SVGGeometryProperty::ResolveAll<SVGT::X, SVGT::Y>(this, &x, &y)) {
// This function might be called for element in display:none subtree
// (e.g. getScreenCTM), we fall back to use SVG attributes.
const_cast<SVGForeignObjectElement*>(this)->GetAnimatedLengthValues(
&x, &y, nullptr);
}
gfxMatrix toUserSpace = gfxMatrix::Translation(x, y);
MOZ_ASSERT(aWhich == eAllTransforms || aWhich == eChildToUserSpace,
"Unknown TransformTypes");
return toUserSpace * aMatrix;
}
/* virtual */
bool SVGForeignObjectElement::HasValidDimensions() const {
float width, height;
DebugOnly<bool> ok =
SVGGeometryProperty::ResolveAll<SVGT::Width, SVGT::Height>(this, &width,
&height);
MOZ_ASSERT(ok, "SVGGeometryProperty::ResolveAll failed");
return width > 0 && height > 0;
}
//----------------------------------------------------------------------
// nsIContent methods
NS_IMETHODIMP_(bool)
SVGForeignObjectElement::IsAttributeMapped(const nsAtom* name) const {
return IsInLengthInfo(name, sLengthInfo) ||
SVGGraphicsElement::IsAttributeMapped(name);
}
//----------------------------------------------------------------------
// SVGElement methods
SVGElement::LengthAttributesInfo SVGForeignObjectElement::GetLengthInfo() {
return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
ArrayLength(sLengthInfo));
}
nsCSSPropertyID SVGForeignObjectElement::GetCSSPropertyIdForAttrEnum(
uint8_t aAttrEnum) {
switch (aAttrEnum) {
case ATTR_X:
return eCSSProperty_x;
case ATTR_Y:
return eCSSProperty_y;
case ATTR_WIDTH:
return eCSSProperty_width;
case ATTR_HEIGHT:
return eCSSProperty_height;
default:
MOZ_ASSERT_UNREACHABLE("Unknown attr enum");
return eCSSProperty_UNKNOWN;
}
}
} // namespace mozilla::dom