73 lines
3.4 KiB
Plaintext
73 lines
3.4 KiB
Plaintext
/*
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* Copyright 2020 Adobe. All rights reserved.
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* This file is licensed to you under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License. You may obtain a copy
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* of the License at http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software distributed under
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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* OF ANY KIND, either express or implied. See the License for the specific language
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* governing permissions and limitations under the License.
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*/ function $c5a24bc478652b5f$export$1005530eda016c13(node, collection) {
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// New API: call collection.getChildren with the node key.
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if (typeof collection.getChildren === 'function') return collection.getChildren(node.key);
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// Old API: access childNodes directly.
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return node.childNodes;
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}
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function $c5a24bc478652b5f$export$fbdeaa6a76694f71(iterable) {
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return $c5a24bc478652b5f$export$5f3398f8733f90e2(iterable, 0);
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}
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function $c5a24bc478652b5f$export$5f3398f8733f90e2(iterable, index) {
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if (index < 0) return undefined;
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let i = 0;
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for (let item of iterable){
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if (i === index) return item;
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i++;
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}
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}
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function $c5a24bc478652b5f$export$7475b2c64539e4cf(iterable) {
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let lastItem = undefined;
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for (let value of iterable)lastItem = value;
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return lastItem;
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}
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function $c5a24bc478652b5f$export$8c434b3a7a4dad6(collection, a, b) {
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// If the two nodes have the same parent, compare their indices.
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if (a.parentKey === b.parentKey) return a.index - b.index;
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// Otherwise, collect all of the ancestors from each node, and find the first one that doesn't match starting from the root.
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// Include the base nodes in case we are comparing nodes of different levels so that we can compare the higher node to the lower level node's
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// ancestor of the same level
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let aAncestors = [
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...$c5a24bc478652b5f$var$getAncestors(collection, a),
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a
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];
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let bAncestors = [
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...$c5a24bc478652b5f$var$getAncestors(collection, b),
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b
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];
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let firstNonMatchingAncestor = aAncestors.slice(0, bAncestors.length).findIndex((a, i)=>a !== bAncestors[i]);
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if (firstNonMatchingAncestor !== -1) {
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// Compare the indices of two children within the common ancestor.
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a = aAncestors[firstNonMatchingAncestor];
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b = bAncestors[firstNonMatchingAncestor];
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return a.index - b.index;
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}
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// If there isn't a non matching ancestor, we might be in a case where one of the nodes is the ancestor of the other.
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if (aAncestors.findIndex((node)=>node === b) >= 0) return 1;
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else if (bAncestors.findIndex((node)=>node === a) >= 0) return -1;
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// 🤷
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return -1;
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}
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function $c5a24bc478652b5f$var$getAncestors(collection, node) {
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let parents = [];
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let currNode = node;
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while((currNode === null || currNode === void 0 ? void 0 : currNode.parentKey) != null){
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currNode = collection.getItem(currNode.parentKey);
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if (currNode) parents.unshift(currNode);
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}
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return parents;
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}
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export {$c5a24bc478652b5f$export$1005530eda016c13 as getChildNodes, $c5a24bc478652b5f$export$fbdeaa6a76694f71 as getFirstItem, $c5a24bc478652b5f$export$5f3398f8733f90e2 as getNthItem, $c5a24bc478652b5f$export$7475b2c64539e4cf as getLastItem, $c5a24bc478652b5f$export$8c434b3a7a4dad6 as compareNodeOrder};
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//# sourceMappingURL=getChildNodes.module.js.map
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