dom/svg/SVGSymbolElement.cpp

   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/SVGSymbolElement.h"
   8 #include "mozilla/dom/SVGSymbolElementBinding.h"
   9
  10 NS_IMPL_NS_NEW_SVG_ELEMENT(Symbol)
  11
  12 namespace mozilla::dom {
  13
  14 JSObject* SVGSymbolElement::WrapNode(JSContext* aCx,
  15                                      JS::Handle<JSObject*> aGivenProto) {
  16   return SVGSymbolElement_Binding::Wrap(aCx, this, aGivenProto);
  17 }
  18
  19 //----------------------------------------------------------------------
  20 // nsISupports methods
  21
  22 NS_IMPL_ISUPPORTS_INHERITED(SVGSymbolElement, SVGSymbolElementBase,
  23                             mozilla::dom::SVGTests)
  24
  25 //----------------------------------------------------------------------
  26 // Implementation
  27
  28 SVGSymbolElement::SVGSymbolElement(
  29     already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo)
  30     : SVGSymbolElementBase(std::move(aNodeInfo)) {}
  31
  32 Focusable SVGSymbolElement::IsFocusableWithoutStyle(IsFocusableFlags aFlags) {
  33   if (!CouldBeRendered()) {
  34     return {};
  35   }
  36   return SVGSymbolElementBase::IsFocusableWithoutStyle(aFlags);
  37 }
  38
  39 bool SVGSymbolElement::CouldBeRendered() const {
  40   // Only <symbol> elements in the root of a <svg:use> shadow tree are
  41   // displayed.
  42   auto* shadowRoot = ShadowRoot::FromNodeOrNull(GetParentNode());
  43   return shadowRoot && shadowRoot->Host()->IsSVGElement(nsGkAtoms::use);
  44 }
  45
  46 //----------------------------------------------------------------------
  47 // nsINode methods
  48
  49 NS_IMPL_ELEMENT_CLONE_WITH_INIT(SVGSymbolElement)
  50
  51 }  // namespace mozilla::dom