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219
webpack/assets/javascripts/react_app/components/Layout/NavigationSearch.js
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,219 @@ | ||
| import React, { useState, useEffect, useRef } from 'react'; | ||
| import PropTypes from 'prop-types'; | ||
| import { | ||
| Menu, | ||
| MenuContent, | ||
| MenuItem, | ||
| MenuList, | ||
| Popper, | ||
| SearchInput, | ||
| } from '@patternfly/react-core'; | ||
| import { translate as __ } from '../../common/I18n'; | ||
|
|
||
| export const NavigationSearch = ({ items, clickAndNavigate }) => { | ||
| const navLinks = {}; | ||
| let parent = null; | ||
| items.forEach(item => { | ||
| item.subItems.forEach(group => { | ||
| if (group.isDivider) { | ||
| parent = group.title; | ||
| } else { | ||
| navLinks[group.title] = { | ||
| ...group, | ||
| parents: [item.title, parent].filter(Boolean), | ||
| }; | ||
| } | ||
| }); | ||
| parent = null; | ||
| }); | ||
|
|
||
| const navItems = Object.keys(navLinks); | ||
| const menuNav = navItem => ( | ||
| <MenuItem | ||
| to={navLinks[navItem].href} | ||
| onClick={event => | ||
| clickAndNavigate( | ||
| navLinks[navItem].onClick, | ||
| navLinks[navItem].href, | ||
| event | ||
| ) | ||
| } | ||
| itemId={navItem} | ||
| key={navItem} | ||
| description={[...navLinks[navItem].parents, navItem].join(' > ')} | ||
| > | ||
| {navItem} | ||
| </MenuItem> | ||
| ); | ||
| const [value, setValue] = React.useState(''); | ||
| const [isExpanded, setIsExpanded] = useState(false); | ||
| const [isAutocompleteOpen, setIsAutocompleteOpen] = useState(false); | ||
| const onToggleExpand = (_event, _isExpanded) => { | ||
| setIsExpanded(!_isExpanded); | ||
| if (_isExpanded) { | ||
| setIsAutocompleteOpen(false); | ||
| } | ||
| }; | ||
| const [autocompleteOptions, setAutocompleteOptions] = useState( | ||
| navItems.slice(0, 10).map(menuNav) | ||
| ); | ||
|
|
||
| const searchInputRef = useRef(null); | ||
| const autocompleteRef = useRef(null); | ||
|
|
||
| const onChange = newValue => { | ||
| if ( | ||
| newValue !== '' && | ||
| searchInputRef && | ||
| searchInputRef.current && | ||
| searchInputRef.current.contains(document.activeElement) | ||
| ) { | ||
| setIsAutocompleteOpen(true); | ||
|
|
||
| // When the value of the search input changes, build a list of no more than 10 autocomplete options. | ||
| // Options which start with the search input value are listed first, followed by options which contain | ||
| // the search input value. | ||
|
|
||
| let options = navItems | ||
| .filter(option => option.toLowerCase().includes(newValue.toLowerCase())) | ||
| .map(menuNav); | ||
| if (options.length > 10) { | ||
| options = options.slice(0, 10); | ||
| } else { | ||
| options = [ | ||
| ...options, | ||
| ...navItems | ||
| .filter( | ||
| option => | ||
| !option.includes(newValue.toLowerCase()) && | ||
| option.includes(newValue.toLowerCase()) | ||
| ) | ||
| .map(menuNav), | ||
| ].slice(0, 10); | ||
| } | ||
|
|
||
| // The menu is hidden if there are no options | ||
| setIsAutocompleteOpen(options.length > 0); | ||
|
|
||
| setAutocompleteOptions(options); | ||
| } else { | ||
| setIsAutocompleteOpen(false); | ||
| } | ||
| setValue(newValue); | ||
| }; | ||
|
|
||
| // Whenever an autocomplete option is selected, set the search input value, close the menu, and put the browser | ||
| // focus back on the search input | ||
| const onSelect = (e, itemId) => { | ||
| e.stopPropagation(); | ||
| setValue(itemId); | ||
| setIsAutocompleteOpen(false); | ||
| searchInputRef.current.focus(); | ||
| }; | ||
|
|
||
| useEffect(() => { | ||
| const handleMenuKeys = event => { | ||
| // keyboard shortcut to focus the search, will not focus if the key is typed into an input | ||
| if ( | ||
| event.key === '/' && | ||
| event.target.tagName !== 'INPUT' && | ||
| event.target.tagName !== 'TEXTAREA' | ||
| ) { | ||
| event.preventDefault(); | ||
| searchInputRef.current.focus(); | ||
| } | ||
| // if the autocomplete is open and the browser focus is on the search input, | ||
| else if (isAutocompleteOpen && searchInputRef?.current === event.target) { | ||
| // the escape key closes the autocomplete menu and keeps the focus on the search input. | ||
| if (event.key === 'Escape') { | ||
| setIsAutocompleteOpen(false); | ||
| searchInputRef.current.focus(); | ||
| // the up and down arrow keys move browser focus into the autocomplete menu | ||
| } else if (event.key === 'ArrowDown' || event.key === 'ArrowUp') { | ||
| const firstElement = autocompleteRef.current.querySelector( | ||
| 'li > a:not(:disabled)' | ||
| ); | ||
| firstElement && firstElement.focus(); | ||
| event.preventDefault(); // by default, the up and down arrow keys scroll the window | ||
| } else if ( | ||
| autocompleteRef?.current?.contains(event.target) && | ||
| event.key === 'Tab' | ||
| ) { | ||
| event.preventDefault(); | ||
|
|
||
| setIsAutocompleteOpen(false); | ||
| searchInputRef.current.focus(); | ||
| } | ||
| } | ||
| }; | ||
| // The autocomplete menu should close if the user clicks outside the menu. | ||
| const handleClickOutside = event => { | ||
| if ( | ||
| isAutocompleteOpen && | ||
| autocompleteRef?.current && | ||
| !autocompleteRef.current.contains(event.target) && | ||
| searchInputRef?.current && | ||
| !searchInputRef.current.contains(event.target) | ||
| ) { | ||
| setIsAutocompleteOpen(false); | ||
| } | ||
| }; | ||
| window.addEventListener('keydown', handleMenuKeys); | ||
| window.addEventListener('click', handleClickOutside); | ||
|
|
||
| return () => { | ||
| window.removeEventListener('keydown', handleMenuKeys); | ||
| window.removeEventListener('click', handleClickOutside); | ||
| }; | ||
| }, [isAutocompleteOpen]); | ||
|
|
||
| const searchInput = ( | ||
| <SearchInput | ||
| className="navigation-search" | ||
| placeholder={__('Search and go')} | ||
| value={value} | ||
| onChange={onChange} | ||
| expandableInput={{ | ||
| isExpanded, | ||
| onToggleExpand, | ||
| toggleAriaLabel: 'Expandable search input toggle', | ||
| }} | ||
| ref={searchInputRef} | ||
| id="navigation-search" | ||
| onClick={e => { | ||
| // if the user clicks on the search input, open the autocomplete menu | ||
| if (e.target.type === 'text') setIsAutocompleteOpen(true); | ||
| else if (!isExpanded) setIsExpanded(true); | ||
| }} | ||
| /> | ||
| ); | ||
|
|
||
| const autocomplete = ( | ||
| <Menu | ||
| ouiaId="navigation-search-menu" | ||
| ref={autocompleteRef} | ||
| onSelect={onSelect} | ||
| className="navigation-search-menu" | ||
| > | ||
| <MenuContent> | ||
| <MenuList>{autocompleteOptions}</MenuList> | ||
| </MenuContent> | ||
| </Menu> | ||
| ); | ||
|
|
||
| return ( | ||
| <Popper | ||
| trigger={searchInput} | ||
| popper={autocomplete} | ||
| isVisible={isAutocompleteOpen} | ||
| enableFlip={false} | ||
| appendTo={() => | ||
| document.querySelector('.pf-c-masthead.pf-m-display-inline') | ||
| } | ||
| /> | ||
| ); | ||
| }; | ||
| NavigationSearch.propTypes = { | ||
| items: PropTypes.array.isRequired, | ||
| clickAndNavigate: PropTypes.func.isRequired, | ||
| }; |
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