gecko-dev/dom/svg/SVGSwitchElement.h

64 строки
2.1 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_SVGSWITCHELEMENT_H_
#define DOM_SVG_SVGSWITCHELEMENT_H_
#include "mozilla/dom/SVGGraphicsElement.h"
#include "nsCOMPtr.h"
nsresult NS_NewSVGSwitchElement(
nsIContent** aResult, already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
namespace mozilla {
class ErrorResult;
namespace dom {
using SVGSwitchElementBase = SVGGraphicsElement;
class SVGSwitchElement final : public SVGSwitchElementBase {
protected:
friend nsresult(::NS_NewSVGSwitchElement(
nsIContent** aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
explicit SVGSwitchElement(
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
~SVGSwitchElement() = default;
virtual JSObject* WrapNode(JSContext* aCx,
JS::Handle<JSObject*> aGivenProto) override;
public:
nsIContent* GetActiveChild() const { return mActiveChild; }
void MaybeInvalidate();
// interfaces:
NS_DECL_ISUPPORTS_INHERITED
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(SVGSwitchElement,
SVGSwitchElementBase)
// nsINode
virtual void InsertChildBefore(nsIContent* aKid, nsIContent* aBeforeThis,
bool aNotify, ErrorResult& aRv) override;
virtual void RemoveChildNode(nsIContent* aKid, bool aNotify) override;
// nsIContent
NS_IMETHOD_(bool) IsAttributeMapped(const nsAtom* aAttribute) const override;
virtual nsresult Clone(dom::NodeInfo*, nsINode** aResult) const override;
private:
void UpdateActiveChild() { mActiveChild = FindActiveChild(); }
nsIContent* FindActiveChild() const;
// only this child will be displayed
nsCOMPtr<nsIContent> mActiveChild;
};
} // namespace dom
} // namespace mozilla
#endif // DOM_SVG_SVGSWITCHELEMENT_H_