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// 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.
// https://crbug.com/1453291
// https://github.com/WICG/webcomponents/blob/gh-pages/proposals/DOM-Parts.md
[RuntimeEnabled=DOMPartsAPI,Exposed=Window]
interface mixin PartRootMixin {
// Retrieve the parts list for this PartRoot, always in tree order breaking
// ties for a Node using the order Parts were constructed.
sequence<Part> getParts();
// Retrieve the Nodes corresponding to the NodeParts returned by getParts(),
// without building the Part objects.
[RuntimeEnabled=DOMPartsAPIMinimal] sequence<Node> getNodePartNodes();
// Retrieve the pairs of previous/next Nodes corresponding to the
// ChildNodeParts returned by getParts(), without building the Part objects.
// Nodes are paired, so for 3 ChildNodeParts, 6 Nodes will be returned.
[RuntimeEnabled=DOMPartsAPIMinimal] sequence<Node> getChildNodePartNodes();
// This clones the PartRoot, and also clones the Node tree itself, starting
// at the RootContainer. In the case of a DocumentPartRoot, the entire
// document tree is cloned. In the case of a ChildPartRoot, only the children
// between `previous_node` and `next_node` are included, inclusive. The
// `clone()` method returns the cloned PartRoot.
[RaisesException] PartRoot clone();
// Return the root container for the PartRoot, which is the Document or
// DocumentFragment for a DocumentPartRoot, or the parent ContainerNode of
// a ChildNodePart.
readonly attribute Node rootContainer;
};
DocumentPartRoot includes PartRootMixin;
ChildNodePart includes PartRootMixin;
typedef (DocumentPartRoot or ChildNodePart) PartRoot;
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