tor-browser

The Tor Browser
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SVGForeignObjectElement.cpp (4373B)

      1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
      2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
      3 /* This Source Code Form is subject to the terms of the Mozilla Public
      4 * License, v. 2.0. If a copy of the MPL was not distributed with this
      5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
      6 
      7 #include "mozilla/dom/SVGForeignObjectElement.h"
      8 
      9 #include "SVGGeometryProperty.h"
     10 #include "mozilla/AlreadyAddRefed.h"
     11 #include "mozilla/dom/SVGDocument.h"
     12 #include "mozilla/dom/SVGForeignObjectElementBinding.h"
     13 #include "mozilla/dom/SVGLengthBinding.h"
     14 
     15 NS_IMPL_NS_NEW_SVG_ELEMENT(ForeignObject)
     16 
     17 namespace mozilla::dom {
     18 
     19 JSObject* SVGForeignObjectElement::WrapNode(JSContext* aCx,
     20                                            JS::Handle<JSObject*> aGivenProto) {
     21  return SVGForeignObjectElement_Binding::Wrap(aCx, this, aGivenProto);
     22 }
     23 
     24 SVGElement::LengthInfo SVGForeignObjectElement::sLengthInfo[4] = {
     25    {nsGkAtoms::x, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
     26     SVGContentUtils::X},
     27    {nsGkAtoms::y, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
     28     SVGContentUtils::Y},
     29    {nsGkAtoms::width, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
     30     SVGContentUtils::X},
     31    {nsGkAtoms::height, 0, SVGLength_Binding::SVG_LENGTHTYPE_NUMBER,
     32     SVGContentUtils::Y},
     33 };
     34 
     35 //----------------------------------------------------------------------
     36 // Implementation
     37 
     38 SVGForeignObjectElement::SVGForeignObjectElement(
     39    already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
     40    : SVGGraphicsElement(std::move(aNodeInfo)) {}
     41 
     42 namespace SVGT = SVGGeometryProperty::Tags;
     43 
     44 //----------------------------------------------------------------------
     45 // nsINode methods
     46 
     47 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGForeignObjectElement)
     48 
     49 //----------------------------------------------------------------------
     50 
     51 already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::X() {
     52  return mLengthAttributes[ATTR_X].ToDOMAnimatedLength(this);
     53 }
     54 
     55 already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::Y() {
     56  return mLengthAttributes[ATTR_Y].ToDOMAnimatedLength(this);
     57 }
     58 
     59 already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::Width() {
     60  return mLengthAttributes[ATTR_WIDTH].ToDOMAnimatedLength(this);
     61 }
     62 
     63 already_AddRefed<DOMSVGAnimatedLength> SVGForeignObjectElement::Height() {
     64  return mLengthAttributes[ATTR_HEIGHT].ToDOMAnimatedLength(this);
     65 }
     66 
     67 //----------------------------------------------------------------------
     68 // SVGElement methods
     69 
     70 gfxMatrix SVGForeignObjectElement::ChildToUserSpaceTransform() const {
     71  // our 'x' and 'y' attributes:
     72  float x, y;
     73  if (!SVGGeometryProperty::ResolveAll<SVGT::X, SVGT::Y>(this, &x, &y)) {
     74    // This function might be called for element in display:none subtree
     75    // (e.g. getScreenCTM), we fall back to use SVG attributes.
     76    const_cast<SVGForeignObjectElement*>(this)->GetAnimatedLengthValues(
     77        &x, &y, nullptr);
     78  }
     79  return gfxMatrix::Translation(x, y);
     80 }
     81 
     82 /* virtual */
     83 bool SVGForeignObjectElement::HasValidDimensions() const {
     84  float width, height;
     85 
     86  DebugOnly<bool> ok =
     87      SVGGeometryProperty::ResolveAll<SVGT::Width, SVGT::Height>(this, &width,
     88                                                                 &height);
     89  MOZ_ASSERT(ok, "SVGGeometryProperty::ResolveAll failed");
     90  return width > 0 && height > 0;
     91 }
     92 
     93 //----------------------------------------------------------------------
     94 // nsIContent methods
     95 
     96 NS_IMETHODIMP_(bool)
     97 SVGForeignObjectElement::IsAttributeMapped(const nsAtom* name) const {
     98  return IsInLengthInfo(name, sLengthInfo) ||
     99         SVGGraphicsElement::IsAttributeMapped(name);
    100 }
    101 
    102 //----------------------------------------------------------------------
    103 // SVGElement methods
    104 
    105 SVGElement::LengthAttributesInfo SVGForeignObjectElement::GetLengthInfo() {
    106  return LengthAttributesInfo(mLengthAttributes, sLengthInfo,
    107                              std::size(sLengthInfo));
    108 }
    109 
    110 NonCustomCSSPropertyId SVGForeignObjectElement::GetCSSPropertyIdForAttrEnum(
    111    uint8_t aAttrEnum) {
    112  switch (aAttrEnum) {
    113    case ATTR_X:
    114      return eCSSProperty_x;
    115    case ATTR_Y:
    116      return eCSSProperty_y;
    117    case ATTR_WIDTH:
    118      return eCSSProperty_width;
    119    case ATTR_HEIGHT:
    120      return eCSSProperty_height;
    121    default:
    122      MOZ_ASSERT_UNREACHABLE("Unknown attr enum");
    123      return eCSSProperty_UNKNOWN;
    124  }
    125 }
    126 
    127 }  // namespace mozilla::dom