chromium/third_party/blink/renderer/core/dom/child_node_part.h

// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef THIRD_PARTY_BLINK_RENDERER_CORE_DOM_CHILD_NODE_PART_H_
#define THIRD_PARTY_BLINK_RENDERER_CORE_DOM_CHILD_NODE_PART_H_

#include "third_party/blink/renderer/bindings/core/v8/v8_union_node_string_trustedscript.h"
#include "third_party/blink/renderer/core/core_export.h"
#include "third_party/blink/renderer/core/dom/container_node.h"
#include "third_party/blink/renderer/core/dom/node.h"
#include "third_party/blink/renderer/core/dom/node_part.h"
#include "third_party/blink/renderer/core/dom/part_root.h"
#include "third_party/blink/renderer/platform/bindings/script_wrappable.h"
#include "third_party/blink/renderer/platform/heap/collection_support/heap_vector.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/runtime_enabled_features.h"

namespace blink {

class PartInit;
class PartRootCloneOptions;

// Implementation of the ChildNodePart class, which is part of the DOM Parts
// API. A ChildNodePart stores a reference to a range of nodes within the
// children of a single parent |Node| in the DOM tree.
class CORE_EXPORT ChildNodePart : public Part, public PartRoot { … };

// A ChildNodePart is valid if:
//  1. The base |Part| is valid (it has a |root|).
//  2. previous_sibling_ and next_sibling_ are non-null.
//  3. previous_sibling_ and next_sibling_ have the same (non-null) parent.
//  4. previous_sibling_ comes strictly before next_sibling_ in the tree.
inline bool ChildNodePart::IsValid() const { … }

}  // namespace blink

#endif  // THIRD_PARTY_BLINK_RENDERER_CORE_DOM_CHILD_NODE_PART_H_