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64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef dom_base_GeneratedImageContent_h
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#define dom_base_GeneratedImageContent_h
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/* A content node that keeps track of an index in the parent's `content`
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* property value, used for url() values in the content of a ::before or ::after
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* pseudo-element. */
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#include "mozilla/dom/HTMLElementBinding.h"
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#include "mozilla/dom/NameSpaceConstants.h"
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#include "mozilla/dom/NodeInfo.h"
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#include "nsGenericHTMLElement.h"
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namespace mozilla::dom {
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class GeneratedImageContent final : public nsGenericHTMLElement {
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public:
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static already_AddRefed<GeneratedImageContent> Create(Document&,
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uint32_t aContentIndex);
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// An image created from 'list-style-image' for a ::marker pseudo.
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static already_AddRefed<GeneratedImageContent> CreateForListStyleImage(
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Document&);
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explicit GeneratedImageContent(already_AddRefed<dom::NodeInfo>&& aNodeInfo)
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: nsGenericHTMLElement(std::move(aNodeInfo)) {
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MOZ_ASSERT(IsInNamespace(kNameSpaceID_XHTML),
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"Someone messed up our nodeinfo");
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}
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nsresult Clone(dom::NodeInfo* aNodeInfo, nsINode** aResult) const final;
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nsresult CopyInnerTo(GeneratedImageContent* aDest) {
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nsresult rv = nsGenericHTMLElement::CopyInnerTo(aDest);
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NS_ENSURE_SUCCESS(rv, rv);
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aDest->mIndex = mIndex;
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return NS_OK;
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}
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// Is this an image created from 'list-style-image'?
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bool IsForListStyleImageMarker() const { return Index() == uint32_t(-1); }
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// @note we use -1 for images created from 'list-style-image'
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uint32_t Index() const { return mIndex; }
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// Notify this image failed to load.
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void NotifyLoadFailed() { SetStates(ElementState::BROKEN, true); }
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protected:
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JSObject* WrapNode(JSContext* aCx, JS::Handle<JSObject*> aGivenProto) final;
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private:
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virtual ~GeneratedImageContent() = default;
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uint32_t mIndex = 0;
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};
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} // namespace mozilla::dom
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#endif // dom_base_GeneratedImageContent_h
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