gnezim
46 lines
1.6 KiB
JavaScript
46 lines
1.6 KiB
JavaScript
import { asArray } from './array';
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import { parentAutofocusables } from './DOMutils';
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var getParents = function (node, parents) {
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if (parents === void 0) { parents = []; }
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parents.push(node);
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if (node.parentNode) {
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getParents(node.parentNode, parents);
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}
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return parents;
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};
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export var getCommonParent = function (nodeA, nodeB) {
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var parentsA = getParents(nodeA);
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var parentsB = getParents(nodeB);
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for (var i = 0; i < parentsA.length; i += 1) {
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var currentParent = parentsA[i];
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if (parentsB.indexOf(currentParent) >= 0) {
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return currentParent;
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}
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}
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return false;
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};
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export var getTopCommonParent = function (baseActiveElement, leftEntry, rightEntries) {
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var activeElements = asArray(baseActiveElement);
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var leftEntries = asArray(leftEntry);
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var activeElement = activeElements[0];
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var topCommon = false;
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leftEntries.filter(Boolean).forEach(function (entry) {
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topCommon = getCommonParent(topCommon || entry, entry) || topCommon;
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rightEntries.filter(Boolean).forEach(function (subEntry) {
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var common = getCommonParent(activeElement, subEntry);
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if (common) {
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if (!topCommon || common.contains(topCommon)) {
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topCommon = common;
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}
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else {
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topCommon = getCommonParent(common, topCommon);
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}
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}
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});
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});
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return topCommon;
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};
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export var allParentAutofocusables = function (entries) {
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return entries.reduce(function (acc, node) { return acc.concat(parentAutofocusables(node)); }, []);
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};
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