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/* -*- 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 */
#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::dom {
class GeneratedImageContent final : public nsGenericHTMLElement {
static already_AddRefed<GeneratedImageContent> Create(Document&,
uint32_t aContentIndex);
// An image created from 'list-style-image' for a ::marker pseudo.
static already_AddRefed<GeneratedImageContent> CreateForListStyleImage(
explicit GeneratedImageContent(already_AddRefed<dom::NodeInfo>&& aNodeInfo)
: nsGenericHTMLElement(std::move(aNodeInfo)) {
"Someone messed up our nodeinfo");
ElementState IntrinsicState() const override {
ElementState state = nsGenericHTMLElement::IntrinsicState();
if (mBroken) {
state |= ElementState::BROKEN;
return state;
nsresult Clone(dom::NodeInfo* aNodeInfo, nsINode** aResult) const final;
nsresult CopyInnerTo(GeneratedImageContent* aDest) {
nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);
aDest->mIndex = mIndex;
return NS_OK;
// Is this an image created from 'list-style-image'?
bool IsForListStyleImageMarker() const { return Index() == uint32_t(-1); }
// @note we use -1 for images created from 'list-style-image'
uint32_t Index() const { return mIndex; }
// Notify this image failed to load.
void NotifyLoadFailed() {
mBroken = true;
JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
virtual ~GeneratedImageContent() = default;
uint32_t mIndex = 0;
bool mBroken = false;
} // namespace mozilla::dom
#endif // dom_base_GeneratedImageContent_h