/* -*- 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_base_GeneratedImageContent_h

#define dom_base_GeneratedImageContent_h

/* A content node that keeps track of an index in the parent's `content`

 * property value, used for url() values in the content of a ::before or ::after

 * pseudo-element. */

#include "mozilla/dom/HTMLElementBinding.h"

#include "mozilla/dom/NameSpaceConstants.h"

#include "mozilla/dom/NodeInfo.h"

#include "nsGenericHTMLElement.h"

namespace mozilla {

namespace dom {

class GeneratedImageContent final

  : public nsGenericHTMLElement

{

public:

  static already_AddRefed<GeneratedImageContent>

    Create(nsIDocument&, uint32_t aContentIndex);

  explicit GeneratedImageContent(already_AddRefed<dom::NodeInfo>&& aNodeInfo)

    : nsGenericHTMLElement(std::move(aNodeInfo))

  {

    MOZ_ASSERT(IsInNamespace(kNameSpaceID_XHTML), "Someone messed up our nodeinfo");

  }

  nsresult Clone(dom::NodeInfo* aNodeInfo, nsINode** aResult) const final;

  nsresult CopyInnerTo(GeneratedImageContent* aDest)

  {

    nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);

    NS_ENSURE_SUCCESS(rv, rv);

    aDest->mIndex = mIndex;

    return NS_OK;

  }

  uint32_t Index() const

  {

    return mIndex;

  }

protected:

  JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;

private:

  virtual ~GeneratedImageContent() = default;

  uint32_t mIndex = 0;

};

} // namespace dom

} // namespace mozilla

#endif // dom_base_GeneratedImageContent_h