gecko-dev/dom/base/GeneratedImageContent.h

65 строки
1.8 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_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(aNodeInfo)
{
MOZ_ASSERT(IsInNamespace(kNameSpaceID_XHTML), "Someone messed up our nodeinfo");
}
nsresult Clone(dom::NodeInfo* aNodeInfo,
nsINode** aResult,
bool aPreallocateChildren) const final;
nsresult CopyInnerTo(GeneratedImageContent* aDest, bool aPreallocateChildren)
{
nsresult rv =
nsGenericHTMLElement::CopyInnerTo(aDest, aPreallocateChildren);
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