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 mozilla_dom_SVGSwitchElement_h
#define mozilla_dom_SVGSwitchElement_h
#include "mozilla/dom/SVGGraphicsElement.h"
class nsSVGSwitchFrame;
nsresult NS_NewSVGSwitchElement(nsIContent **aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo);
namespace mozilla {
namespace dom {
typedef SVGGraphicsElement SVGSwitchElementBase;
class SVGSwitchElement final : public SVGSwitchElementBase
{
friend class ::nsSVGSwitchFrame;
protected:
friend nsresult (::NS_NewSVGSwitchElement(nsIContent **aResult,
already_AddRefed<mozilla::dom::NodeInfo>&& aNodeInfo));
explicit SVGSwitchElement(already_AddRefed<mozilla::dom::NodeInfo>& aNodeInfo);
~SVGSwitchElement();
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 nsresult InsertChildAt(nsIContent* aKid, uint32_t aIndex,
bool aNotify) override;
virtual void RemoveChildAt(uint32_t aIndex, bool aNotify) override;
// nsIContent
NS_IMETHOD_(bool) IsAttributeMapped(const nsIAtom* aAttribute) const override;
virtual nsresult Clone(mozilla::dom::NodeInfo *aNodeInfo, 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 // mozilla_dom_SVGSwitchElement_h