44 lines
1.7 KiB
JavaScript
44 lines
1.7 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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Object.defineProperty(exports, "partitionBreadcrumbItems", {
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enumerable: true,
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get: function() {
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return partitionBreadcrumbItems;
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}
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});
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const DEFAULT_OVERFLOW_INDEX = 1;
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const DEFAULT_MAX_DISPLAYED_ITEMS = 6;
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const partitionBreadcrumbItems = (options)=>{
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let startDisplayedItems;
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let overflowItems;
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let endDisplayedItems;
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const { items = [] } = options;
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const itemsCount = items.length;
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const maxDisplayedItems = getMaxDisplayedItems(options.maxDisplayedItems);
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var _options_overflowIndex;
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let overflowIndex = (_options_overflowIndex = options.overflowIndex) !== null && _options_overflowIndex !== void 0 ? _options_overflowIndex : DEFAULT_OVERFLOW_INDEX;
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startDisplayedItems = items.slice(0, overflowIndex);
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const numberItemsToHide = itemsCount - maxDisplayedItems;
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if (numberItemsToHide > 0) {
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overflowIndex = overflowIndex >= maxDisplayedItems ? maxDisplayedItems - 1 : overflowIndex;
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const menuLastItemIdx = overflowIndex + numberItemsToHide;
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startDisplayedItems = startDisplayedItems.slice(0, overflowIndex);
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overflowItems = items.slice(overflowIndex, menuLastItemIdx);
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if (menuLastItemIdx < itemsCount) {
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endDisplayedItems = items.slice(menuLastItemIdx, itemsCount);
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}
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} else if (overflowIndex < itemsCount) {
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endDisplayedItems = items.slice(overflowIndex, itemsCount);
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}
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return {
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startDisplayedItems,
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overflowItems,
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endDisplayedItems
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};
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};
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function getMaxDisplayedItems(maxDisplayedItems) {
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return maxDisplayedItems && maxDisplayedItems >= 0 ? maxDisplayedItems : DEFAULT_MAX_DISPLAYED_ITEMS;
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}
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