| /** |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| import React, { ReactNode, useState } from 'react'; |
| import Button from 'src/components/Button'; |
| |
| interface Props { |
| items: string[] | ReactNode[]; |
| display?: number; |
| } |
| |
| function intersperse(arr: any[], sep: string | ReactNode) { |
| if (arr.length === 0) { |
| return []; |
| } |
| |
| return arr.slice(1).reduce((xs, x) => xs.concat([sep, x]), [arr[0]]); |
| } |
| |
| export default function ExpandableList({ items, display = 3 }: Props) { |
| const [showingAll, setShowingAll] = useState(false); |
| const toggleShowingAll = () => setShowingAll(!showingAll); |
| const itemsToDisplay = items.slice(0, display); |
| const showMoreAction = items.length > display; |
| |
| const lessAction = ( |
| <Button buttonStyle="link" buttonSize="xsmall" onClick={toggleShowingAll}> |
| less |
| </Button> |
| ); |
| const moreAction = ( |
| <Button buttonStyle="link" buttonSize="xsmall" onClick={toggleShowingAll}> |
| {items.length - itemsToDisplay.length} more |
| </Button> |
| ); |
| return ( |
| <span> |
| {showingAll |
| ? intersperse(items, ', ') |
| : intersperse(itemsToDisplay, ', ')} |
| {showMoreAction && ','} |
| {showMoreAction && (showingAll ? lessAction : moreAction)} |
| </span> |
| ); |
| } |