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40 lines
1.2 KiB
40 lines
1.2 KiB
"use strict";
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const { mixin } = require("../../utils");
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const { domSymbolTree } = require("../helpers/internal-constants");
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const NODE_TYPE = require("../node-type");
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const NodeImpl = require("./Node-impl").implementation;
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const NonElementParentNodeImpl = require("./NonElementParentNode-impl").implementation;
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const ParentNodeImpl = require("./ParentNode-impl").implementation;
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class DocumentFragmentImpl extends NodeImpl {
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constructor(args, privateData) {
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super(args, privateData);
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const { host } = privateData;
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this._host = host;
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this.nodeType = NODE_TYPE.DOCUMENT_FRAGMENT_NODE;
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}
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// This is implemented separately for Document (which has a _ids cache) and DocumentFragment (which does not).
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getElementById(id) {
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if (id === "") {
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return null;
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}
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for (const descendant of domSymbolTree.treeIterator(this)) {
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if (descendant.nodeType === NODE_TYPE.ELEMENT_NODE && descendant.getAttributeNS(null, "id") === id) {
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return descendant;
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}
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}
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return null;
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}
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}
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mixin(DocumentFragmentImpl.prototype, NonElementParentNodeImpl.prototype);
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mixin(DocumentFragmentImpl.prototype, ParentNodeImpl.prototype);
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module.exports = {
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implementation: DocumentFragmentImpl
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};
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